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l---------src/login/Makefile1
-rw-r--r--src/login/loginctl.c1914
-rw-r--r--src/login/logind-acl.c248
-rw-r--r--src/login/logind-acl.h60
-rw-r--r--src/login/logind-dbus.c1504
-rw-r--r--src/login/logind-device.c86
-rw-r--r--src/login/logind-device.h48
-rw-r--r--src/login/logind-gperf.gperf22
-rw-r--r--src/login/logind-seat-dbus.c403
-rw-r--r--src/login/logind-seat.c499
-rw-r--r--src/login/logind-seat.h82
-rw-r--r--src/login/logind-session-dbus.c515
-rw-r--r--src/login/logind-session.c945
-rw-r--r--src/login/logind-session.h124
-rw-r--r--src/login/logind-user-dbus.c411
-rw-r--r--src/login/logind-user.c587
-rw-r--r--src/login/logind-user.h86
-rw-r--r--src/login/logind.c1228
-rw-r--r--src/login/logind.h128
-rw-r--r--src/login/sd-login.c726
-rw-r--r--src/login/sd-login.h121
-rw-r--r--src/login/test-login.c170
-rw-r--r--src/login/uaccess.c90
23 files changed, 9998 insertions, 0 deletions
diff --git a/src/login/Makefile b/src/login/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/login/Makefile
@@ -0,0 +1 @@
+../Makefile \ No newline at end of file
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
new file mode 100644
index 0000000000..1be47c8dde
--- /dev/null
+++ b/src/login/loginctl.c
@@ -0,0 +1,1914 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ 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 <dbus/dbus.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <getopt.h>
+#include <pwd.h>
+
+#include "log.h"
+#include "util.h"
+#include "macro.h"
+#include "pager.h"
+#include "dbus-common.h"
+#include "build.h"
+#include "strv.h"
+#include "cgroup-show.h"
+#include "sysfs-show.h"
+
+static char **arg_property = NULL;
+static bool arg_all = false;
+static bool arg_no_pager = false;
+static const char *arg_kill_who = NULL;
+static int arg_signal = SIGTERM;
+static enum transport {
+ TRANSPORT_NORMAL,
+ TRANSPORT_SSH,
+ TRANSPORT_POLKIT
+} arg_transport = TRANSPORT_NORMAL;
+static const char *arg_host = NULL;
+
+static bool on_tty(void) {
+ static int t = -1;
+
+ /* Note that this is invoked relatively early, before we start
+ * the pager. That means the value we return reflects whether
+ * we originally were started on a tty, not if we currently
+ * are. But this is intended, since we want colour and so on
+ * when run in our own pager. */
+
+ if (_unlikely_(t < 0))
+ t = isatty(STDOUT_FILENO) > 0;
+
+ return t;
+}
+
+static void pager_open_if_enabled(void) {
+
+ /* Cache result before we open the pager */
+ on_tty();
+
+ if (!arg_no_pager)
+ pager_open();
+}
+
+static int list_sessions(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ DBusMessageIter iter, sub, sub2;
+ unsigned k = 0;
+
+ dbus_error_init(&error);
+
+ assert(bus);
+
+ pager_open_if_enabled();
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "ListSessions");
+ if (!m) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ 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_STRUCT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (on_tty())
+ printf("%10s %10s %-16s %-16s\n", "SESSION", "UID", "USER", "SEAT");
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *id, *user, *seat, *object;
+ uint32_t uid;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
+ 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, &id, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &uid, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &user, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &seat, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ printf("%10s %10u %-16s %-16s\n", id, (unsigned) uid, user, seat);
+
+ k++;
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (on_tty())
+ printf("\n%u sessions listed.\n", k);
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int list_users(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ DBusMessageIter iter, sub, sub2;
+ unsigned k = 0;
+
+ dbus_error_init(&error);
+
+ assert(bus);
+
+ pager_open_if_enabled();
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "ListUsers");
+ if (!m) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ 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_STRUCT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (on_tty())
+ printf("%10s %-16s\n", "UID", "USER");
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *user, *object;
+ uint32_t uid;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
+ 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_UINT32, &uid, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &user, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ printf("%10u %-16s\n", (unsigned) uid, user);
+
+ k++;
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (on_tty())
+ printf("\n%u users listed.\n", k);
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int list_seats(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ DBusMessageIter iter, sub, sub2;
+ unsigned k = 0;
+
+ dbus_error_init(&error);
+
+ assert(bus);
+
+ pager_open_if_enabled();
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "ListSeats");
+ if (!m) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ 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_STRUCT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (on_tty())
+ printf("%-16s\n", "SEAT");
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *seat, *object;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
+ 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, &seat, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ printf("%-16s\n", seat);
+
+ k++;
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (on_tty())
+ printf("\n%u seats listed.\n", k);
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+typedef struct SessionStatusInfo {
+ const char *id;
+ uid_t uid;
+ const char *name;
+ usec_t timestamp;
+ const char *control_group;
+ int vtnr;
+ const char *seat;
+ const char *tty;
+ const char *display;
+ bool remote;
+ const char *remote_host;
+ const char *remote_user;
+ const char *service;
+ pid_t leader;
+ const char *type;
+ bool active;
+} SessionStatusInfo;
+
+typedef struct UserStatusInfo {
+ uid_t uid;
+ const char *name;
+ usec_t timestamp;
+ const char *control_group;
+ const char *state;
+ char **sessions;
+ const char *display;
+} UserStatusInfo;
+
+typedef struct SeatStatusInfo {
+ const char *id;
+ const char *active_session;
+ char **sessions;
+} SeatStatusInfo;
+
+static void print_session_status_info(SessionStatusInfo *i) {
+ char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
+ char since2[FORMAT_TIMESTAMP_MAX], *s2;
+ assert(i);
+
+ printf("%s - ", strna(i->id));
+
+ if (i->name)
+ printf("%s (%u)\n", i->name, (unsigned) i->uid);
+ else
+ printf("%u\n", (unsigned) i->uid);
+
+ s1 = format_timestamp_pretty(since1, sizeof(since1), i->timestamp);
+ s2 = format_timestamp(since2, sizeof(since2), i->timestamp);
+
+ if (s1)
+ printf("\t Since: %s; %s\n", s2, s1);
+ else if (s2)
+ printf("\t Since: %s\n", s2);
+
+ if (i->leader > 0) {
+ char *t = NULL;
+
+ printf("\t Leader: %u", (unsigned) i->leader);
+
+ get_process_comm(i->leader, &t);
+ if (t) {
+ printf(" (%s)", t);
+ free(t);
+ }
+
+ printf("\n");
+ }
+
+ if (i->seat) {
+ printf("\t Seat: %s", i->seat);
+
+ if (i->vtnr > 0)
+ printf("; vc%i", i->vtnr);
+
+ printf("\n");
+ }
+
+ if (i->tty)
+ printf("\t TTY: %s\n", i->tty);
+ else if (i->display)
+ printf("\t Display: %s\n", i->display);
+
+ if (i->remote_host && i->remote_user)
+ printf("\t Remote: %s@%s\n", i->remote_user, i->remote_host);
+ else if (i->remote_host)
+ printf("\t Remote: %s\n", i->remote_host);
+ else if (i->remote_user)
+ printf("\t Remote: user %s\n", i->remote_user);
+ else if (i->remote)
+ printf("\t Remote: Yes\n");
+
+ if (i->service) {
+ printf("\t Service: %s", i->service);
+
+ if (i->type)
+ printf("; type %s", i->type);
+
+ printf("\n");
+ } else if (i->type)
+ printf("\t Type: %s\n", i->type);
+
+ printf("\t Active: %s\n", yes_no(i->active));
+
+ if (i->control_group) {
+ unsigned c;
+
+ printf("\t CGroup: %s\n", i->control_group);
+
+ if (arg_transport != TRANSPORT_SSH) {
+ c = columns();
+ if (c > 18)
+ c -= 18;
+ else
+ c = 0;
+
+ show_cgroup_by_path(i->control_group, "\t\t ", c);
+ }
+ }
+}
+
+static void print_user_status_info(UserStatusInfo *i) {
+ char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
+ char since2[FORMAT_TIMESTAMP_MAX], *s2;
+ assert(i);
+
+ if (i->name)
+ printf("%s (%u)\n", i->name, (unsigned) i->uid);
+ else
+ printf("%u\n", (unsigned) i->uid);
+
+ s1 = format_timestamp_pretty(since1, sizeof(since1), i->timestamp);
+ s2 = format_timestamp(since2, sizeof(since2), i->timestamp);
+
+ if (s1)
+ printf("\t Since: %s; %s\n", s2, s1);
+ else if (s2)
+ printf("\t Since: %s\n", s2);
+
+ if (!isempty(i->state))
+ printf("\t State: %s\n", i->state);
+
+ if (!strv_isempty(i->sessions)) {
+ char **l;
+ printf("\tSessions:");
+
+ STRV_FOREACH(l, i->sessions) {
+ if (streq_ptr(*l, i->display))
+ printf(" *%s", *l);
+ else
+ printf(" %s", *l);
+ }
+
+ printf("\n");
+ }
+
+ if (i->control_group) {
+ unsigned c;
+
+ printf("\t CGroup: %s\n", i->control_group);
+
+ if (arg_transport != TRANSPORT_SSH) {
+ c = columns();
+ if (c > 18)
+ c -= 18;
+ else
+ c = 0;
+
+ show_cgroup_by_path(i->control_group, "\t\t ", c);
+ }
+ }
+}
+
+static void print_seat_status_info(SeatStatusInfo *i) {
+ assert(i);
+
+ printf("%s\n", strna(i->id));
+
+ if (!strv_isempty(i->sessions)) {
+ char **l;
+ printf("\tSessions:");
+
+ STRV_FOREACH(l, i->sessions) {
+ if (streq_ptr(*l, i->active_session))
+ printf(" *%s", *l);
+ else
+ printf(" %s", *l);
+ }
+
+ printf("\n");
+ }
+
+ if (arg_transport != TRANSPORT_SSH) {
+ unsigned c;
+
+ c = columns();
+ if (c > 21)
+ c -= 21;
+ else
+ c = 0;
+
+ printf("\t Devices:\n");
+
+ show_sysfs(i->id, "\t\t ", c);
+ }
+}
+
+static int status_property_session(const char *name, DBusMessageIter *iter, SessionStatusInfo *i) {
+ assert(name);
+ assert(iter);
+ assert(i);
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (!isempty(s)) {
+ if (streq(name, "Id"))
+ i->id = s;
+ else if (streq(name, "Name"))
+ i->name = s;
+ else if (streq(name, "ControlGroupPath"))
+ i->control_group = s;
+ else if (streq(name, "TTY"))
+ i->tty = s;
+ else if (streq(name, "Display"))
+ i->display = s;
+ else if (streq(name, "RemoteHost"))
+ i->remote_host = s;
+ else if (streq(name, "RemoteUser"))
+ i->remote_user = s;
+ else if (streq(name, "Service"))
+ i->service = s;
+ else if (streq(name, "Type"))
+ i->type = s;
+ }
+ break;
+ }
+
+ case DBUS_TYPE_UINT32: {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "VTNr"))
+ i->vtnr = (int) u;
+ else if (streq(name, "Leader"))
+ i->leader = (pid_t) u;
+
+ break;
+ }
+
+ case DBUS_TYPE_BOOLEAN: {
+ dbus_bool_t b;
+
+ dbus_message_iter_get_basic(iter, &b);
+
+ if (streq(name, "Remote"))
+ i->remote = b;
+ else if (streq(name, "Active"))
+ i->active = b;
+
+ break;
+ }
+
+ case DBUS_TYPE_UINT64: {
+ uint64_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "Timestamp"))
+ i->timestamp = (usec_t) u;
+
+ break;
+ }
+
+ 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, "User")) {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(&sub, &u);
+ i->uid = (uid_t) u;
+
+ } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Seat")) {
+ const char *s;
+
+ dbus_message_iter_get_basic(&sub, &s);
+
+ if (!isempty(s))
+ i->seat = s;
+ }
+
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int status_property_user(const char *name, DBusMessageIter *iter, UserStatusInfo *i) {
+ assert(name);
+ assert(iter);
+ assert(i);
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (!isempty(s)) {
+ if (streq(name, "Name"))
+ i->name = s;
+ else if (streq(name, "ControlGroupPath"))
+ i->control_group = s;
+ else if (streq(name, "State"))
+ i->state = s;
+ }
+ break;
+ }
+
+ case DBUS_TYPE_UINT32: {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "UID"))
+ i->uid = (uid_t) u;
+
+ break;
+ }
+
+ case DBUS_TYPE_UINT64: {
+ uint64_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "Timestamp"))
+ i->timestamp = (usec_t) u;
+
+ break;
+ }
+
+ case DBUS_TYPE_STRUCT: {
+ DBusMessageIter sub;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Display")) {
+ const char *s;
+
+ dbus_message_iter_get_basic(&sub, &s);
+
+ if (!isempty(s))
+ i->display = s;
+ }
+
+ break;
+ }
+
+ case DBUS_TYPE_ARRAY: {
+
+ if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Sessions")) {
+ DBusMessageIter sub, sub2;
+
+ dbus_message_iter_recurse(iter, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ const char *id;
+ const char *path;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &path, false) >= 0) {
+ char **l;
+
+ l = strv_append(i->sessions, id);
+ if (!l)
+ return -ENOMEM;
+
+ strv_free(i->sessions);
+ i->sessions = l;
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ return 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int status_property_seat(const char *name, DBusMessageIter *iter, SeatStatusInfo *i) {
+ assert(name);
+ assert(iter);
+ assert(i);
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (!isempty(s)) {
+ if (streq(name, "Id"))
+ i->id = s;
+ }
+ break;
+ }
+
+ case DBUS_TYPE_STRUCT: {
+ DBusMessageIter sub;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "ActiveSession")) {
+ const char *s;
+
+ dbus_message_iter_get_basic(&sub, &s);
+
+ if (!isempty(s))
+ i->active_session = s;
+ }
+
+ break;
+ }
+
+ case DBUS_TYPE_ARRAY: {
+
+ if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Sessions")) {
+ DBusMessageIter sub, sub2;
+
+ dbus_message_iter_recurse(iter, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ const char *id;
+ const char *path;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &path, false) >= 0) {
+ char **l;
+
+ l = strv_append(i->sessions, id);
+ if (!l)
+ return -ENOMEM;
+
+ strv_free(i->sessions);
+ i->sessions = l;
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ return 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int print_property(const char *name, DBusMessageIter *iter) {
+ assert(name);
+ assert(iter);
+
+ if (arg_property && !strv_find(arg_property, name))
+ return 0;
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRUCT: {
+ DBusMessageIter sub;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING &&
+ (streq(name, "Display") || streq(name, "ActiveSession"))) {
+ const char *s;
+
+ dbus_message_iter_get_basic(&sub, &s);
+
+ if (arg_all || !isempty(s))
+ printf("%s=%s\n", name, s);
+ return 0;
+ }
+ break;
+ }
+
+ case DBUS_TYPE_ARRAY:
+
+ if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Sessions")) {
+ DBusMessageIter sub, sub2;
+ bool found = false;
+
+ dbus_message_iter_recurse(iter, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ const char *id;
+ const char *path;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &path, false) >= 0) {
+ if (found)
+ printf(" %s", id);
+ else {
+ printf("%s=%s", name, id);
+ found = true;
+ }
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (!found && arg_all)
+ printf("%s=\n", name);
+ else if (found)
+ printf("\n");
+
+ return 0;
+ }
+
+ break;
+ }
+
+ if (generic_print_property(name, iter, arg_all) > 0)
+ return 0;
+
+ if (arg_all)
+ printf("%s=[unprintable]\n", name);
+
+ return 0;
+}
+
+static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
+ DBusMessage *m = NULL, *reply = NULL;
+ const char *interface = "";
+ int r;
+ DBusError error;
+ DBusMessageIter iter, sub, sub2, sub3;
+ SessionStatusInfo session_info;
+ UserStatusInfo user_info;
+ SeatStatusInfo seat_info;
+
+ assert(bus);
+ assert(path);
+ assert(new_line);
+
+ zero(session_info);
+ zero(user_info);
+ zero(seat_info);
+
+ dbus_error_init(&error);
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "GetAll");
+ if (!m) {
+ 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;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ 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);
+
+ if (*new_line)
+ printf("\n");
+
+ *new_line = true;
+
+ 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 if (strstr(verb, "session"))
+ r = status_property_session(name, &sub3, &session_info);
+ else if (strstr(verb, "user"))
+ r = status_property_user(name, &sub3, &user_info);
+ else
+ r = status_property_seat(name, &sub3, &seat_info);
+
+ if (r < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (!show_properties) {
+ if (strstr(verb, "session"))
+ print_session_status_info(&session_info);
+ else if (strstr(verb, "user"))
+ print_user_status_info(&user_info);
+ else
+ print_seat_status_info(&seat_info);
+ }
+
+ strv_free(seat_info.sessions);
+ strv_free(user_info.sessions);
+
+ 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, 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");
+
+ if (show_properties)
+ 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/login1", show_properties, &new_line);
+ goto finish;
+ }
+
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+
+ if (strstr(args[0], "session")) {
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "GetSession");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -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.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ } else if (strstr(args[0], "user")) {
+ uid_t uid;
+ uint32_t u;
+
+ ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL);
+ if (ret < 0) {
+ log_error("User %s unknown.", args[i]);
+ goto finish;
+ }
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "GetUser");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ u = (uint32_t) uid;
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+ } else {
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "GetSeat");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -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.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -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", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ r = show_one(args[0], bus, path, show_properties, &new_line);
+ if (r != 0)
+ ret = r;
+
+ 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 ret;
+}
+
+static int activate(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ for (i = 1; i < n; i++) {
+ DBusMessage *reply;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ streq(args[0], "lock-session") ? "LockSession" :
+ streq(args[0], "unlock-session") ? "UnlockSession" :
+ streq(args[0], "terminate-session") ? "TerminateSession" :
+ "ActivateSession");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -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.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int kill_session(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ if (!arg_kill_who)
+ arg_kill_who = "all";
+
+ for (i = 1; i < n; i++) {
+ DBusMessage *reply;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "KillSession");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_STRING, &arg_kill_who,
+ DBUS_TYPE_INT32, arg_signal,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int enable_linger(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+ dbus_bool_t b, interactive = true;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ b = streq(args[0], "enable-linger");
+
+ for (i = 1; i < n; i++) {
+ DBusMessage *reply;
+ uint32_t u;
+ uid_t uid;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "SetUserLinger");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL);
+ if (ret < 0) {
+ log_error("Failed to resolve user %s: %s", args[i], strerror(-ret));
+ goto finish;
+ }
+
+ u = (uint32_t) uid;
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+ ret = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int terminate_user(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ for (i = 1; i < n; i++) {
+ uint32_t u;
+ uid_t uid;
+ DBusMessage *reply;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "TerminateUser");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL);
+ if (ret < 0) {
+ log_error("Failed to look up user %s: %s", args[i], strerror(-ret));
+ goto finish;
+ }
+
+ u = (uint32_t) uid;
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+ ret = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int kill_user(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ if (!arg_kill_who)
+ arg_kill_who = "all";
+
+ for (i = 1; i < n; i++) {
+ DBusMessage *reply;
+ uid_t uid;
+ uint32_t u;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "KillUser");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL);
+ if (ret < 0) {
+ log_error("Failed to look up user %s: %s", args[i], strerror(-ret));
+ goto finish;
+ }
+
+ u = (uint32_t) uid;
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_INT32, arg_signal,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+ ret = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int attach(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+ dbus_bool_t interactive = true;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ for (i = 2; i < n; i++) {
+ DBusMessage *reply;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "AttachDevice");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &args[1],
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int flush_devices(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ int ret = 0;
+ DBusError error;
+ dbus_bool_t interactive = true;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "FlushDevices");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int terminate_seat(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL;
+ int ret = 0;
+ DBusError error;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ for (i = 1; i < n; i++) {
+ DBusMessage *reply;
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "TerminateSeat");
+ if (!m) {
+ log_error("Could not allocate message.");
+ ret = -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.");
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int help(void) {
+
+ printf("%s [OPTIONS...] {COMMAND} ...\n\n"
+ "Send control commands to or query the login 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"
+ " -s --signal=SIGNAL Which signal to send\n"
+ " -H --host=[USER@]HOST\n"
+ " 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-sessions List sessions\n"
+ " session-status [ID...] Show session status\n"
+ " show-session [ID...] Show properties of one or more sessions\n"
+ " activate [ID] Activate a session\n"
+ " lock-session [ID...] Screen lock one or more sessions\n"
+ " unlock-session [ID...] Screen unlock one or more sessions\n"
+ " terminate-session [ID...] Terminate one or more sessions\n"
+ " kill-session [ID...] Send signal to processes of a session\n"
+ " list-users List users\n"
+ " user-status [USER...] Show user status\n"
+ " show-user [USER...] Show properties of one or more users\n"
+ " enable-linger [USER...] Enable linger state of one or more users\n"
+ " disable-linger [USER...] Disable linger state of one or more users\n"
+ " terminate-user [USER...] Terminate all sessions of one or more users\n"
+ " kill-user [USER...] Send signal to processes of a user\n"
+ " list-seats List seats\n"
+ " seat-status [NAME...] Show seat status\n"
+ " show-seat [NAME...] Show properties of one or more seats\n"
+ " attach [NAME] [DEVICE...] Attach one or more devices to a seat\n"
+ " flush-devices Flush all device associations\n"
+ " terminate-seat [NAME...] Terminate all sessions on one or more seats\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
+ };
+
+ 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' },
+ { "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' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "hp:as:H:P", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(DISTRIBUTION);
+ 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 ARG_NO_PAGER:
+ arg_no_pager = true;
+ 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;
+ arg_host = optarg;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ return 1;
+}
+
+static int loginctl_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-sessions", LESS, 1, list_sessions },
+ { "session-status", MORE, 2, show },
+ { "show-session", MORE, 1, show },
+ { "activate", EQUAL, 2, activate },
+ { "lock-session", MORE, 2, activate },
+ { "unlock-session", MORE, 2, activate },
+ { "terminate-session", MORE, 2, activate },
+ { "kill-session", MORE, 2, kill_session },
+ { "list-users", EQUAL, 1, list_users },
+ { "user-status", MORE, 2, show },
+ { "show-user", MORE, 1, show },
+ { "enable-linger", MORE, 2, enable_linger },
+ { "disable-linger", MORE, 2, enable_linger },
+ { "terminate-user", MORE, 2, terminate_user },
+ { "kill-user", MORE, 2, kill_user },
+ { "list-seats", EQUAL, 1, list_seats },
+ { "seat-status", MORE, 2, show },
+ { "show-seat", MORE, 1, show },
+ { "attach", MORE, 3, attach },
+ { "flush-devices", EQUAL, 1, flush_devices },
+ { "terminate-seat", MORE, 2, terminate_seat },
+ };
+
+ 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);
+
+ 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 = loginctl_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;
+}
diff --git a/src/login/logind-acl.c b/src/login/logind-acl.c
new file mode 100644
index 0000000000..eb8a48d191
--- /dev/null
+++ b/src/login/logind-acl.c
@@ -0,0 +1,248 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <sys/acl.h>
+#include <acl/libacl.h>
+#include <errno.h>
+#include <string.h>
+
+#include "logind-acl.h"
+#include "util.h"
+#include "acl-util.h"
+
+static int flush_acl(acl_t acl) {
+ acl_entry_t i;
+ int found;
+ bool changed = false;
+
+ assert(acl);
+
+ for (found = acl_get_entry(acl, ACL_FIRST_ENTRY, &i);
+ found > 0;
+ found = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) {
+
+ acl_tag_t tag;
+
+ if (acl_get_tag_type(i, &tag) < 0)
+ return -errno;
+
+ if (tag != ACL_USER)
+ continue;
+
+ if (acl_delete_entry(acl, i) < 0)
+ return -errno;
+
+ changed = true;
+ }
+
+ if (found < 0)
+ return -errno;
+
+ return changed;
+}
+
+int devnode_acl(const char *path,
+ bool flush,
+ bool del, uid_t old_uid,
+ bool add, uid_t new_uid) {
+
+ acl_t acl;
+ int r = 0;
+ bool changed = false;
+
+ assert(path);
+
+ acl = acl_get_file(path, ACL_TYPE_ACCESS);
+ if (!acl)
+ return -errno;
+
+ if (flush) {
+
+ r = flush_acl(acl);
+ if (r < 0)
+ goto finish;
+ if (r > 0)
+ changed = true;
+
+ } else if (del && old_uid > 0) {
+ acl_entry_t entry;
+
+ r = acl_find_uid(acl, old_uid, &entry);
+ if (r < 0)
+ goto finish;
+
+ if (r > 0) {
+ if (acl_delete_entry(acl, entry) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ changed = true;
+ }
+ }
+
+ if (add && new_uid > 0) {
+ acl_entry_t entry;
+ acl_permset_t permset;
+ int rd, wt;
+
+ r = acl_find_uid(acl, new_uid, &entry);
+ if (r < 0)
+ goto finish;
+
+ if (r == 0) {
+ if (acl_create_entry(&acl, &entry) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (acl_set_tag_type(entry, ACL_USER) < 0 ||
+ acl_set_qualifier(entry, &new_uid) < 0) {
+ r = -errno;
+ goto finish;
+ }
+ }
+
+ if (acl_get_permset(entry, &permset) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ rd = acl_get_perm(permset, ACL_READ);
+ if (rd < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ wt = acl_get_perm(permset, ACL_WRITE);
+ if (wt < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (!rd || !wt) {
+
+ if (acl_add_perm(permset, ACL_READ|ACL_WRITE) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ changed = true;
+ }
+ }
+
+ if (!changed)
+ goto finish;
+
+ if (acl_calc_mask(&acl) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (acl_set_file(path, ACL_TYPE_ACCESS, acl) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ r = 0;
+
+finish:
+ acl_free(acl);
+
+ return r;
+}
+
+int devnode_acl_all(struct udev *udev,
+ const char *seat,
+ bool flush,
+ bool del, uid_t old_uid,
+ bool add, uid_t new_uid) {
+
+ struct udev_list_entry *item = NULL, *first = NULL;
+ struct udev_enumerate *e;
+ int r;
+
+ assert(udev);
+
+ if (isempty(seat))
+ seat = "seat0";
+
+ e = udev_enumerate_new(udev);
+ if (!e)
+ return -ENOMEM;
+
+ /* We can only match by one tag in libudev. We choose
+ * "uaccess" for that. If we could match for two tags here we
+ * could add the seat name as second match tag, but this would
+ * be hardly optimizable in libudev, and hence checking the
+ * second tag manually in our loop is a good solution. */
+
+ r = udev_enumerate_add_match_tag(e, "uaccess");
+ if (r < 0)
+ goto finish;
+
+ r = udev_enumerate_scan_devices(e);
+ if (r < 0)
+ goto finish;
+
+ first = udev_enumerate_get_list_entry(e);
+ udev_list_entry_foreach(item, first) {
+ struct udev_device *d;
+ const char *node, *sn;
+
+ d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item));
+ if (!d) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ sn = udev_device_get_property_value(d, "ID_SEAT");
+ if (isempty(sn))
+ sn = "seat0";
+
+ if (!streq(seat, sn)) {
+ udev_device_unref(d);
+ continue;
+ }
+
+ node = udev_device_get_devnode(d);
+ if (!node) {
+ /* In case people mistag devices with nodes, we need to ignore this */
+ udev_device_unref(d);
+ continue;
+ }
+
+ log_debug("Fixing up %s for seat %s...", node, sn);
+
+ r = devnode_acl(node, flush, del, old_uid, add, new_uid);
+ udev_device_unref(d);
+
+ if (r < 0)
+ goto finish;
+ }
+
+finish:
+ if (e)
+ udev_enumerate_unref(e);
+
+ return r;
+}
diff --git a/src/login/logind-acl.h b/src/login/logind-acl.h
new file mode 100644
index 0000000000..72740f5b95
--- /dev/null
+++ b/src/login/logind-acl.h
@@ -0,0 +1,60 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foologindaclhfoo
+#define foologindaclhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <sys/types.h>
+#include <stdbool.h>
+#include <libudev.h>
+
+#ifdef HAVE_ACL
+
+int devnode_acl(const char *path,
+ bool flush,
+ bool del, uid_t old_uid,
+ bool add, uid_t new_uid);
+
+int devnode_acl_all(struct udev *udev,
+ const char *seat,
+ bool flush,
+ bool del, uid_t old_uid,
+ bool add, uid_t new_uid);
+#else
+
+static inline int devnode_acl(const char *path,
+ bool flush,
+ bool del, uid_t old_uid,
+ bool add, uid_t new_uid) {
+ return 0;
+}
+
+static inline int devnode_acl_all(struct udev *udev,
+ const char *seat,
+ bool flush,
+ bool del, uid_t old_uid,
+ bool add, uid_t new_uid) {
+ return 0;
+}
+
+#endif
+
+#endif
diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
new file mode 100644
index 0000000000..0550d1bd1c
--- /dev/null
+++ b/src/login/logind-dbus.c
@@ -0,0 +1,1504 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <pwd.h>
+
+#include "logind.h"
+#include "dbus-common.h"
+#include "strv.h"
+#include "polkit.h"
+#include "special.h"
+
+#define BUS_MANAGER_INTERFACE \
+ " <interface name=\"org.freedesktop.login1.Manager\">\n" \
+ " <method name=\"GetSession\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"GetUser\">\n" \
+ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"GetSeat\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"ListSessions\">\n" \
+ " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"ListUsers\">\n" \
+ " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"ListSeats\">\n" \
+ " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"CreateSession\">\n" \
+ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"vtnr\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \
+ " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \
+ " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \
+ " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \
+ " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
+ " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \
+ " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \
+ " <arg name=\"seat\" type=\"s\" direction=\"out\"/>\n" \
+ " <arg name=\"vtnr\" type=\"u\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"ActivateSession\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"LockSession\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"UnlockSession\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"KillSession\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"who\" type=\"s\"/>\n" \
+ " <arg name=\"signal\" type=\"s\"/>\n" \
+ " </method>\n" \
+ " <method name=\"KillUser\">\n" \
+ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"signal\" type=\"s\"/>\n" \
+ " </method>\n" \
+ " <method name=\"TerminateSession\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"TerminateUser\">\n" \
+ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"TerminateSeat\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"SetUserLinger\">\n" \
+ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"AttachDevice\">\n" \
+ " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"FlushDevices\">\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"PowerOff\">\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"Reboot\">\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <signal name=\"SessionNew\">\n" \
+ " <arg name=\"id\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"SessionRemoved\">\n" \
+ " <arg name=\"id\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"UserNew\">\n" \
+ " <arg name=\"uid\" type=\"u\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"UserRemoved\">\n" \
+ " <arg name=\"uid\" type=\"u\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"SeatNew\">\n" \
+ " <arg name=\"id\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"SeatRemoved\">\n" \
+ " <arg name=\"id\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION_BEGIN \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_MANAGER_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE
+
+#define INTROSPECTION_END \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.login1.Manager\0"
+
+static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
+ Manager *m = data;
+ dbus_bool_t b;
+
+ assert(i);
+ assert(property);
+ assert(m);
+
+ b = manager_get_idle_hint(m, NULL) > 0;
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
+ Manager *m = data;
+ dual_timestamp t;
+ uint64_t u;
+
+ assert(i);
+ assert(property);
+ assert(m);
+
+ manager_get_idle_hint(m, &t);
+ u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) {
+ Session *session = NULL;
+ User *user = NULL;
+ const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service;
+ uint32_t uid, leader, audit_id = 0;
+ dbus_bool_t remote, kill_processes;
+ char **controllers = NULL, **reset_controllers = NULL;
+ SessionType t;
+ Seat *s;
+ DBusMessageIter iter;
+ int r;
+ char *id = NULL, *p;
+ uint32_t vtnr = 0;
+ int fifo_fd = -1;
+ DBusMessage *reply = NULL;
+ bool b;
+
+ assert(m);
+ assert(message);
+ assert(_reply);
+
+ if (!dbus_message_iter_init(message, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &uid);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &leader);
+
+ if (leader <= 0 ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &service);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &type);
+ t = session_type_from_string(type);
+
+ if (t < 0 ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &seat);
+
+ if (isempty(seat))
+ s = NULL;
+ else {
+ s = hashmap_get(m->seats, seat);
+ if (!s)
+ return -ENOENT;
+ }
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &vtnr);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &tty);
+
+ if (tty_is_vc(tty)) {
+ int v;
+
+ if (!s)
+ s = m->vtconsole;
+ else if (s != m->vtconsole)
+ return -EINVAL;
+
+ v = vtnr_from_tty(tty);
+
+ if (v <= 0)
+ return v < 0 ? v : -EINVAL;
+
+ if (vtnr <= 0)
+ vtnr = (uint32_t) v;
+ else if (vtnr != (uint32_t) v)
+ return -EINVAL;
+
+ } else if (!isempty(tty) && s && seat_is_vtconsole(s))
+ return -EINVAL;
+
+ if (s) {
+ if (seat_is_vtconsole(s)) {
+ if (vtnr <= 0 || vtnr > 63)
+ return -EINVAL;
+ } else {
+ if (vtnr > 0)
+ return -EINVAL;
+ }
+ }
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &display);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &remote);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &remote_user);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &remote_host);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ r = bus_parse_strv_iter(&iter, &controllers);
+ if (r < 0)
+ return -EINVAL;
+
+ if (strv_contains(controllers, "systemd") ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) {
+ r = -EINVAL;
+ goto fail;
+ }
+
+ r = bus_parse_strv_iter(&iter, &reset_controllers);
+ if (r < 0)
+ goto fail;
+
+ if (strv_contains(reset_controllers, "systemd") ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
+ r = -EINVAL;
+ goto fail;
+ }
+
+ dbus_message_iter_get_basic(&iter, &kill_processes);
+
+ r = manager_add_user_by_uid(m, uid, &user);
+ if (r < 0)
+ goto fail;
+
+ audit_session_from_pid(leader, &audit_id);
+
+ if (audit_id > 0) {
+ asprintf(&id, "%lu", (unsigned long) audit_id);
+
+ if (!id) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ session = hashmap_get(m->sessions, id);
+
+ if (session) {
+ free(id);
+
+ fifo_fd = session_create_fifo(session);
+ if (fifo_fd < 0) {
+ r = fifo_fd;
+ goto fail;
+ }
+
+ /* Session already exists, client is probably
+ * something like "su" which changes uid but
+ * is still the same audit session */
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ p = session_bus_path(session);
+ if (!p) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ seat = session->seat ? session->seat->id : "";
+ vtnr = session->vtnr;
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_STRING, &session->id,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_STRING, &session->user->runtime_path,
+ DBUS_TYPE_UNIX_FD, &fifo_fd,
+ DBUS_TYPE_STRING, &seat,
+ DBUS_TYPE_UINT32, &vtnr,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ close_nointr_nofail(fifo_fd);
+ *_reply = reply;
+
+ strv_free(controllers);
+ strv_free(reset_controllers);
+
+ return 0;
+ }
+
+ } else {
+ do {
+ free(id);
+ asprintf(&id, "c%lu", ++m->session_counter);
+
+ if (!id) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ } while (hashmap_get(m->sessions, id));
+ }
+
+ r = manager_add_session(m, user, id, &session);
+ free(id);
+ if (r < 0)
+ goto fail;
+
+ session->leader = leader;
+ session->audit_id = audit_id;
+ session->type = t;
+ session->remote = remote;
+ session->controllers = controllers;
+ session->reset_controllers = reset_controllers;
+ session->kill_processes = kill_processes;
+ session->vtnr = vtnr;
+
+ controllers = reset_controllers = NULL;
+
+ if (!isempty(tty)) {
+ session->tty = strdup(tty);
+ if (!session->tty) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(display)) {
+ session->display = strdup(display);
+ if (!session->display) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(remote_user)) {
+ session->remote_user = strdup(remote_user);
+ if (!session->remote_user) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(remote_host)) {
+ session->remote_host = strdup(remote_host);
+ if (!session->remote_host) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(service)) {
+ session->service = strdup(service);
+ if (!session->service) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ fifo_fd = session_create_fifo(session);
+ if (fifo_fd < 0) {
+ r = fifo_fd;
+ goto fail;
+ }
+
+ if (s) {
+ r = seat_attach_session(s, session);
+ if (r < 0)
+ goto fail;
+ }
+
+ r = session_start(session);
+ if (r < 0)
+ goto fail;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ p = session_bus_path(session);
+ if (!p) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ seat = s ? s->id : "";
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_STRING, &session->id,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_STRING, &session->user->runtime_path,
+ DBUS_TYPE_UNIX_FD, &fifo_fd,
+ DBUS_TYPE_STRING, &seat,
+ DBUS_TYPE_UINT32, &vtnr,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ close_nointr_nofail(fifo_fd);
+ *_reply = reply;
+
+ return 0;
+
+fail:
+ strv_free(controllers);
+ strv_free(reset_controllers);
+
+ if (session)
+ session_add_to_gc_queue(session);
+
+ if (user)
+ user_add_to_gc_queue(user);
+
+ if (fifo_fd >= 0)
+ close_nointr_nofail(fifo_fd);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+
+static int trigger_device(Manager *m, struct udev_device *d) {
+ struct udev_enumerate *e;
+ struct udev_list_entry *first, *item;
+ int r;
+
+ assert(m);
+
+ e = udev_enumerate_new(m->udev);
+ if (!e) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (d) {
+ if (udev_enumerate_add_match_parent(e, d) < 0) {
+ r = -EIO;
+ goto finish;
+ }
+ }
+
+ if (udev_enumerate_scan_devices(e) < 0) {
+ r = -EIO;
+ goto finish;
+ }
+
+ first = udev_enumerate_get_list_entry(e);
+ udev_list_entry_foreach(item, first) {
+ char *t;
+ const char *p;
+
+ p = udev_list_entry_get_name(item);
+
+ t = strappend(p, "/uevent");
+ if (!t) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ write_one_line_file(t, "change");
+ free(t);
+ }
+
+ r = 0;
+
+finish:
+ if (e)
+ udev_enumerate_unref(e);
+
+ return r;
+}
+
+static int attach_device(Manager *m, const char *seat, const char *sysfs) {
+ struct udev_device *d;
+ char *rule = NULL, *file = NULL;
+ const char *id_for_seat;
+ int r;
+
+ assert(m);
+ assert(seat);
+ assert(sysfs);
+
+ d = udev_device_new_from_syspath(m->udev, sysfs);
+ if (!d)
+ return -ENODEV;
+
+ if (!udev_device_has_tag(d, "seat")) {
+ r = -ENODEV;
+ goto finish;
+ }
+
+ id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
+ if (!id_for_seat) {
+ r = -ENODEV;
+ goto finish;
+ }
+
+ if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ mkdir_p("/etc/udev/rules.d", 0755);
+ r = write_one_line_file_atomic(file, rule);
+ if (r < 0)
+ goto finish;
+
+ r = trigger_device(m, d);
+
+finish:
+ free(rule);
+ free(file);
+
+ if (d)
+ udev_device_unref(d);
+
+ return r;
+}
+
+static int flush_devices(Manager *m) {
+ DIR *d;
+
+ assert(m);
+
+ d = opendir("/etc/udev/rules.d");
+ if (!d) {
+ if (errno != ENOENT)
+ log_warning("Failed to open /etc/udev/rules.d: %m");
+ } else {
+ struct dirent *de;
+
+ while ((de = readdir(d))) {
+
+ if (!dirent_is_file(de))
+ continue;
+
+ if (!startswith(de->d_name, "72-seat-"))
+ continue;
+
+ if (!endswith(de->d_name, ".rules"))
+ continue;
+
+ if (unlinkat(dirfd(d), de->d_name, 0) < 0)
+ log_warning("Failed to unlink %s: %m", de->d_name);
+ }
+
+ closedir(d);
+ }
+
+ return trigger_device(m, NULL);
+}
+
+static DBusHandlerResult manager_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+
+ const BusProperty properties[] = {
+ { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
+ { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
+ { "org.freedesktop.login1.Manager", "ResetControllers", bus_property_append_strv, "as", m->reset_controllers },
+ { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
+ { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
+ { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
+ { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
+ { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
+ { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
+ { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
+ { NULL, NULL, NULL, NULL, NULL }
+ };
+
+ DBusError error;
+ DBusMessage *reply = NULL;
+ int r;
+
+ assert(connection);
+ assert(message);
+ assert(m);
+
+ dbus_error_init(&error);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
+ const char *name;
+ char *p;
+ Session *session;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ session = hashmap_get(m->sessions, name);
+ if (!session)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = session_bus_path(session);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
+ uint32_t uid;
+ char *p;
+ User *user;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &uid,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+ if (!user)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = user_bus_path(user);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
+ const char *name;
+ char *p;
+ Seat *seat;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ seat = hashmap_get(m->seats, name);
+ if (!seat)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = seat_bus_path(seat);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
+ char *p;
+ Session *session;
+ Iterator i;
+ DBusMessageIter iter, sub;
+ const char *empty = "";
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(susso)", &sub))
+ goto oom;
+
+ HASHMAP_FOREACH(session, m->sessions, i) {
+ DBusMessageIter sub2;
+ uint32_t uid;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ goto oom;
+
+ uid = session->user->uid;
+
+ p = session_bus_path(session);
+ if (!p)
+ goto oom;
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ goto oom;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&iter, &sub))
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
+ char *p;
+ User *user;
+ Iterator i;
+ DBusMessageIter iter, sub;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(uso)", &sub))
+ goto oom;
+
+ HASHMAP_FOREACH(user, m->users, i) {
+ DBusMessageIter sub2;
+ uint32_t uid;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ goto oom;
+
+ uid = user->uid;
+
+ p = user_bus_path(user);
+ if (!p)
+ goto oom;
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ goto oom;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&iter, &sub))
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
+ char *p;
+ Seat *seat;
+ Iterator i;
+ DBusMessageIter iter, sub;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(so)", &sub))
+ goto oom;
+
+ HASHMAP_FOREACH(seat, m->seats, i) {
+ DBusMessageIter sub2;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ goto oom;
+
+ p = seat_bus_path(seat);
+ if (!p)
+ goto oom;
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ goto oom;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&iter, &sub))
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) {
+
+ r = bus_manager_create_session(m, message, &reply);
+
+ /* Don't delay the work on OOM here, since it might be
+ * triggered by a low RLIMIT_NOFILE here (since we
+ * send a dupped fd to the client), and we'd rather
+ * see this fail quickly then be retried later */
+
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
+ const char *name;
+ Session *session;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ session = hashmap_get(m->sessions, name);
+ if (!session)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = session_activate(session);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "LockSession") ||
+ dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "UnlockSession")) {
+ const char *name;
+ Session *session;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ session = hashmap_get(m->sessions, name);
+ if (!session)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ if (session_send_lock(session, streq(dbus_message_get_member(message), "LockSession")) < 0)
+ goto oom;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillSession")) {
+ const char *swho;
+ int32_t signo;
+ KillWho who;
+ const char *name;
+ Session *session;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &swho,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (isempty(swho))
+ who = KILL_ALL;
+ else {
+ who = kill_who_from_string(swho);
+ if (who < 0)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+ }
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ session = hashmap_get(m->sessions, name);
+ if (!session)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = session_kill(session, who, signo);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillUser")) {
+ uint32_t uid;
+ User *user;
+ int32_t signo;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &uid,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+ if (!user)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = user_kill(user, signo);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
+ const char *name;
+ Session *session;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ session = hashmap_get(m->sessions, name);
+ if (!session)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = session_stop(session);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
+ uint32_t uid;
+ User *user;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &uid,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+ if (!user)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = user_stop(user);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
+ const char *name;
+ Seat *seat;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ seat = hashmap_get(m->seats, name);
+ if (!seat)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = seat_stop_sessions(seat);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "SetUserLinger")) {
+ uint32_t uid;
+ struct passwd *pw;
+ dbus_bool_t b, interactive;
+ char *path;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &uid,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ errno = 0;
+ pw = getpwuid(uid);
+ if (!pw)
+ return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
+
+ r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ path = strappend("/var/lib/systemd/linger/", pw->pw_name);
+ if (!path)
+ goto oom;
+
+ if (b) {
+ User *u;
+
+ r = touch(path);
+ free(path);
+
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ if (manager_add_user_by_uid(m, uid, &u) >= 0)
+ user_start(u);
+
+ } else {
+ User *u;
+
+ r = unlink(path);
+ free(path);
+
+ if (r < 0 && errno != ENOENT)
+ return bus_send_error_reply(connection, message, &error, -errno);
+
+ u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+ if (u)
+ user_add_to_gc_queue(u);
+ }
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "AttachDevice")) {
+ const char *sysfs, *seat;
+ dbus_bool_t interactive;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &seat,
+ DBUS_TYPE_STRING, &sysfs,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (!path_startswith(sysfs, "/sys") || !seat_name_is_valid(seat))
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ r = verify_polkit(connection, message, "org.freedesktop.login1.attach-device", interactive, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ r = attach_device(m, seat, sysfs);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "FlushDevices")) {
+ dbus_bool_t interactive;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = verify_polkit(connection, message, "org.freedesktop.login1.flush-devices", interactive, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ r = flush_devices(m);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "PowerOff") ||
+ dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "Reboot")) {
+ dbus_bool_t interactive;
+ bool multiple_sessions;
+ DBusMessage *forward, *freply;
+ const char *name;
+ const char *mode = "replace";
+ const char *action;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ multiple_sessions = hashmap_size(m->sessions) > 1;
+
+ if (!multiple_sessions) {
+ Session *s;
+
+ /* Hmm, there's only one session, but let's
+ * make sure it actually belongs to the user
+ * who is asking. If not, better be safe than
+ * sorry. */
+
+ s = hashmap_first(m->sessions);
+ if (s) {
+ unsigned long ul;
+
+ ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), &error);
+ if (ul == (unsigned long) -1)
+ return bus_send_error_reply(connection, message, &error, -EIO);
+
+ multiple_sessions = s->user->uid != ul;
+ }
+ }
+
+ if (streq(dbus_message_get_member(message), "PowerOff")) {
+ if (multiple_sessions)
+ action = "org.freedesktop.login1.power-off-multiple-sessions";
+ else
+ action = "org.freedesktop.login1.power-off";
+
+ name = SPECIAL_POWEROFF_TARGET;
+ } else {
+ if (multiple_sessions)
+ action = "org.freedesktop.login1.reboot-multiple-sessions";
+ else
+ action = "org.freedesktop.login1.reboot";
+
+ name = SPECIAL_REBOOT_TARGET;
+ }
+
+ r = verify_polkit(connection, message, action, interactive, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ forward = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartUnit");
+ if (!forward)
+ return bus_send_error_reply(connection, message, NULL, -ENOMEM);
+
+ if (!dbus_message_append_args(forward,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &mode,
+ DBUS_TYPE_INVALID)) {
+ dbus_message_unref(forward);
+ return bus_send_error_reply(connection, message, NULL, -ENOMEM);
+ }
+
+ freply = dbus_connection_send_with_reply_and_block(connection, forward, -1, &error);
+ dbus_message_unref(forward);
+
+ if (!freply)
+ return bus_send_error_reply(connection, message, &error, -EIO);
+
+ dbus_message_unref(freply);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
+ char *introspection = NULL;
+ FILE *f;
+ Iterator i;
+ Session *session;
+ Seat *seat;
+ User *user;
+ size_t size;
+ char *p;
+
+ if (!(reply = dbus_message_new_method_return(message)))
+ goto oom;
+
+ /* We roll our own introspection code here, instead of
+ * relying on bus_default_message_handler() because we
+ * need to generate our introspection string
+ * dynamically. */
+
+ if (!(f = open_memstream(&introspection, &size)))
+ goto oom;
+
+ fputs(INTROSPECTION_BEGIN, f);
+
+ HASHMAP_FOREACH(seat, m->seats, i) {
+ p = bus_path_escape(seat->id);
+
+ if (p) {
+ fprintf(f, "<node name=\"seat/%s\"/>", p);
+ free(p);
+ }
+ }
+
+ HASHMAP_FOREACH(user, m->users, i)
+ fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
+
+ HASHMAP_FOREACH(session, m->sessions, i) {
+ p = bus_path_escape(session->id);
+
+ if (p) {
+ fprintf(f, "<node name=\"session/%s\"/>", p);
+ free(p);
+ }
+ }
+
+ fputs(INTROSPECTION_END, f);
+
+ if (ferror(f)) {
+ fclose(f);
+ free(introspection);
+ goto oom;
+ }
+
+ fclose(f);
+
+ if (!introspection)
+ goto oom;
+
+ if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
+ free(introspection);
+ goto oom;
+ }
+
+ free(introspection);
+ } else
+ return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
+
+ if (reply) {
+ if (!dbus_connection_send(connection, reply, NULL))
+ goto oom;
+
+ dbus_message_unref(reply);
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+oom:
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+const DBusObjectPathVTable bus_manager_vtable = {
+ .message_function = manager_message_handler
+};
+
+DBusHandlerResult bus_message_filter(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+ DBusError error;
+
+ assert(m);
+ assert(connection);
+ assert(message);
+
+ dbus_error_init(&error);
+
+ if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
+ const char *cgroup;
+
+ if (!dbus_message_get_args(message, &error,
+ DBUS_TYPE_STRING, &cgroup,
+ DBUS_TYPE_INVALID))
+ log_error("Failed to parse Released message: %s", bus_error_message(&error));
+ else
+ manager_cgroup_notify_empty(m, cgroup);
+ }
+
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+int manager_send_changed(Manager *manager, const char *properties) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+
+ assert(manager);
+
+ m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
+ if (!m)
+ goto finish;
+
+ if (!dbus_connection_send(manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ return r;
+}
diff --git a/src/login/logind-device.c b/src/login/logind-device.c
new file mode 100644
index 0000000000..bbd370fbff
--- /dev/null
+++ b/src/login/logind-device.c
@@ -0,0 +1,86 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <string.h>
+
+#include "logind-device.h"
+#include "util.h"
+
+Device* device_new(Manager *m, const char *sysfs) {
+ Device *d;
+
+ assert(m);
+ assert(sysfs);
+
+ d = new0(Device, 1);
+ if (!d)
+ return NULL;
+
+ d->sysfs = strdup(sysfs);
+ if (!d->sysfs) {
+ free(d);
+ return NULL;
+ }
+
+ if (hashmap_put(m->devices, d->sysfs, d) < 0) {
+ free(d->sysfs);
+ free(d);
+ return NULL;
+ }
+
+ d->manager = m;
+ dual_timestamp_get(&d->timestamp);
+
+ return d;
+}
+
+void device_free(Device *d) {
+ assert(d);
+
+ device_detach(d);
+
+ hashmap_remove(d->manager->devices, d->sysfs);
+
+ free(d->sysfs);
+ free(d);
+}
+
+void device_detach(Device *d) {
+ assert(d);
+
+ if (d->seat)
+ LIST_REMOVE(Device, devices, d->seat->devices, d);
+
+ seat_add_to_gc_queue(d->seat);
+ d->seat = NULL;
+}
+
+void device_attach(Device *d, Seat *s) {
+ assert(d);
+ assert(s);
+
+ if (d->seat)
+ device_detach(d);
+
+ d->seat = s;
+ LIST_PREPEND(Device, devices, s->devices, d);
+}
diff --git a/src/login/logind-device.h b/src/login/logind-device.h
new file mode 100644
index 0000000000..e25a5344ef
--- /dev/null
+++ b/src/login/logind-device.h
@@ -0,0 +1,48 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foologinddevicehfoo
+#define foologinddevicehfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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/>.
+***/
+
+typedef struct Device Device;
+
+#include "list.h"
+#include "util.h"
+#include "logind.h"
+#include "logind-seat.h"
+
+struct Device {
+ Manager *manager;
+
+ char *sysfs;
+ Seat *seat;
+
+ dual_timestamp timestamp;
+
+ LIST_FIELDS(struct Device, devices);
+};
+
+Device* device_new(Manager *m, const char *sysfs);
+void device_free(Device *d);
+void device_attach(Device *d, Seat *s);
+void device_detach(Device *d);
+
+#endif
diff --git a/src/login/logind-gperf.gperf b/src/login/logind-gperf.gperf
new file mode 100644
index 0000000000..940fe10e89
--- /dev/null
+++ b/src/login/logind-gperf.gperf
@@ -0,0 +1,22 @@
+%{
+#include <stddef.h>
+#include "conf-parser.h"
+#include "logind.h"
+%}
+struct ConfigPerfItem;
+%null_strings
+%language=ANSI-C
+%define slot-name section_and_lvalue
+%define hash-function-name logind_gperf_hash
+%define lookup-function-name logind_gperf_lookup
+%readonly-tables
+%omit-struct-type
+%struct-type
+%includes
+%%
+Login.NAutoVTs, config_parse_unsigned, 0, offsetof(Manager, n_autovts)
+Login.KillUserProcesses, config_parse_bool, 0, offsetof(Manager, kill_user_processes)
+Login.KillOnlyUsers, config_parse_strv, 0, offsetof(Manager, kill_only_users)
+Login.KillExcludeUsers, config_parse_strv, 0, offsetof(Manager, kill_exclude_users)
+Login.Controllers, config_parse_strv, 0, offsetof(Manager, controllers)
+Login.ResetControllers, config_parse_strv, 0, offsetof(Manager, reset_controllers)
diff --git a/src/login/logind-seat-dbus.c b/src/login/logind-seat-dbus.c
new file mode 100644
index 0000000000..3a916eef78
--- /dev/null
+++ b/src/login/logind-seat-dbus.c
@@ -0,0 +1,403 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <string.h>
+
+#include "logind.h"
+#include "logind-seat.h"
+#include "dbus-common.h"
+#include "util.h"
+
+#define BUS_SEAT_INTERFACE \
+ " <interface name=\"org.freedesktop.login1.Seat\">\n" \
+ " <method name=\"Terminate\"/>\n" \
+ " <method name=\"ActivateSession\">\n" \
+ " <arg name=\"id\" type=\"s\"/>\n" \
+ " </method>\n" \
+ " <property name=\"Id\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"ActiveSession\" type=\"so\" access=\"read\"/>\n" \
+ " <property name=\"CanMultiSession\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"Sessions\" type=\"a(so)\" access=\"read\"/>\n" \
+ " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " </interface>\n" \
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_SEAT_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.login1.Seat\0"
+
+static int bus_seat_append_active(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ Seat *s = data;
+ const char *id, *path;
+ char *p = NULL;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ if (s->active) {
+ id = s->active->id;
+ path = p = session_bus_path(s->active);
+
+ if (!p)
+ return -ENOMEM;
+ } else {
+ id = "";
+ path = "/";
+ }
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_seat_append_sessions(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub, sub2;
+ Seat *s = data;
+ Session *session;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(so)", &sub))
+ return -ENOMEM;
+
+ LIST_FOREACH(sessions_by_seat, session, s->sessions) {
+ char *p;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ return -ENOMEM;
+
+ p = session_bus_path(session);
+ if (!p)
+ return -ENOMEM;
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ return -ENOMEM;
+ }
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_seat_append_multi_session(DBusMessageIter *i, const char *property, void *data) {
+ Seat *s = data;
+ dbus_bool_t b;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ b = seat_is_vtconsole(s);
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_seat_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
+ Seat *s = data;
+ dbus_bool_t b;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ b = seat_get_idle_hint(s, NULL) > 0;
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_seat_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
+ Seat *s = data;
+ dual_timestamp t;
+ uint64_t k;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ seat_get_idle_hint(s, &t);
+ k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &k))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int get_seat_for_path(Manager *m, const char *path, Seat **_s) {
+ Seat *s;
+ char *id;
+
+ assert(m);
+ assert(path);
+ assert(_s);
+
+ if (!startswith(path, "/org/freedesktop/login1/seat/"))
+ return -EINVAL;
+
+ id = bus_path_unescape(path + 29);
+ if (!id)
+ return -ENOMEM;
+
+ s = hashmap_get(m->seats, id);
+ free(id);
+
+ if (!s)
+ return -ENOENT;
+
+ *_s = s;
+ return 0;
+}
+
+static DBusHandlerResult seat_message_dispatch(
+ Seat *s,
+ DBusConnection *connection,
+ DBusMessage *message) {
+
+ const BusProperty properties[] = {
+ { "org.freedesktop.login1.Seat", "Id", bus_property_append_string, "s", s->id },
+ { "org.freedesktop.login1.Seat", "ActiveSession", bus_seat_append_active, "(so)", s },
+ { "org.freedesktop.login1.Seat", "CanMultiSession", bus_seat_append_multi_session, "b", s },
+ { "org.freedesktop.login1.Seat", "Sessions", bus_seat_append_sessions, "a(so)", s },
+ { "org.freedesktop.login1.Seat", "IdleHint", bus_seat_append_idle_hint, "b", s },
+ { "org.freedesktop.login1.Seat", "IdleSinceHint", bus_seat_append_idle_hint_since, "t", s },
+ { "org.freedesktop.login1.Seat", "IdleSinceHintMonotonic", bus_seat_append_idle_hint_since, "t", s },
+ { NULL, NULL, NULL, NULL, NULL }
+ };
+
+ DBusError error;
+ DBusMessage *reply = NULL;
+ int r;
+
+ assert(s);
+ assert(connection);
+ assert(message);
+
+ dbus_error_init(&error);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.login1.Seat", "Terminate")) {
+
+ r = seat_stop_sessions(s);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Seat", "ActivateSession")) {
+ const char *name;
+ Session *session;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ session = hashmap_get(s->manager->sessions, name);
+ if (!session || session->seat != s)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = session_activate(session);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+ } else
+ return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
+
+ if (reply) {
+ if (!dbus_connection_send(connection, reply, NULL))
+ goto oom;
+
+ dbus_message_unref(reply);
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+oom:
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+static DBusHandlerResult seat_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+ Seat *s;
+ int r;
+
+ r = get_seat_for_path(m, dbus_message_get_path(message), &s);
+ if (r < 0) {
+
+ if (r == -ENOMEM)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ if (r == -ENOENT) {
+ DBusError e;
+
+ dbus_error_init(&e);
+ dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown seat");
+ return bus_send_error_reply(connection, message, &e, r);
+ }
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ return seat_message_dispatch(s, connection, message);
+}
+
+const DBusObjectPathVTable bus_seat_vtable = {
+ .message_function = seat_message_handler
+};
+
+char *seat_bus_path(Seat *s) {
+ char *t, *r;
+
+ assert(s);
+
+ t = bus_path_escape(s->id);
+ if (!t)
+ return NULL;
+
+ r = strappend("/org/freedesktop/login1/seat/", t);
+ free(t);
+
+ return r;
+}
+
+int seat_send_signal(Seat *s, bool new_seat) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+ char *p = NULL;
+
+ assert(s);
+
+ m = dbus_message_new_signal("/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ new_seat ? "SeatNew" : "SeatRemoved");
+
+ if (!m)
+ return -ENOMEM;
+
+ p = seat_bus_path(s);
+ if (!p)
+ goto finish;
+
+ if (!dbus_message_append_args(
+ m,
+ DBUS_TYPE_STRING, &s->id,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID))
+ goto finish;
+
+ if (!dbus_connection_send(s->manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ dbus_message_unref(m);
+ free(p);
+
+ return r;
+}
+
+int seat_send_changed(Seat *s, const char *properties) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+ char *p = NULL;
+
+ assert(s);
+
+ if (!s->started)
+ return 0;
+
+ p = seat_bus_path(s);
+ if (!p)
+ return -ENOMEM;
+
+ m = bus_properties_changed_new(p, "org.freedesktop.login1.Seat", properties);
+ if (!m)
+ goto finish;
+
+ if (!dbus_connection_send(s->manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+ free(p);
+
+ return r;
+}
diff --git a/src/login/logind-seat.c b/src/login/logind-seat.c
new file mode 100644
index 0000000000..3cf3958c8d
--- /dev/null
+++ b/src/login/logind-seat.c
@@ -0,0 +1,499 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <linux/vt.h>
+#include <string.h>
+
+#include "logind-seat.h"
+#include "logind-acl.h"
+#include "util.h"
+
+Seat *seat_new(Manager *m, const char *id) {
+ Seat *s;
+
+ assert(m);
+ assert(id);
+
+ s = new0(Seat, 1);
+ if (!s)
+ return NULL;
+
+ s->state_file = strappend("/run/systemd/seats/", id);
+ if (!s->state_file) {
+ free(s);
+ return NULL;
+ }
+
+ s->id = file_name_from_path(s->state_file);
+ s->manager = m;
+
+ if (hashmap_put(m->seats, s->id, s) < 0) {
+ free(s->state_file);
+ free(s);
+ return NULL;
+ }
+
+ return s;
+}
+
+void seat_free(Seat *s) {
+ assert(s);
+
+ if (s->in_gc_queue)
+ LIST_REMOVE(Seat, gc_queue, s->manager->seat_gc_queue, s);
+
+ while (s->sessions)
+ session_free(s->sessions);
+
+ assert(!s->active);
+
+ while (s->devices)
+ device_free(s->devices);
+
+ hashmap_remove(s->manager->seats, s->id);
+
+ free(s->state_file);
+ free(s);
+}
+
+int seat_save(Seat *s) {
+ int r;
+ FILE *f;
+ char *temp_path;
+
+ assert(s);
+
+ if (!s->started)
+ return 0;
+
+ r = safe_mkdir("/run/systemd/seats", 0755, 0, 0);
+ if (r < 0)
+ goto finish;
+
+ r = fopen_temporary(s->state_file, &f, &temp_path);
+ if (r < 0)
+ goto finish;
+
+ fchmod(fileno(f), 0644);
+
+ fprintf(f,
+ "# This is private data. Do not parse.\n"
+ "IS_VTCONSOLE=%i\n",
+ seat_is_vtconsole(s));
+
+ if (s->active) {
+ assert(s->active->user);
+
+ fprintf(f,
+ "ACTIVE=%s\n"
+ "ACTIVE_UID=%lu\n",
+ s->active->id,
+ (unsigned long) s->active->user->uid);
+ }
+
+ if (s->sessions) {
+ Session *i;
+
+ fputs("SESSIONS=", f);
+ LIST_FOREACH(sessions_by_seat, i, s->sessions) {
+ fprintf(f,
+ "%s%c",
+ i->id,
+ i->sessions_by_seat_next ? ' ' : '\n');
+ }
+
+ fputs("UIDS=", f);
+ LIST_FOREACH(sessions_by_seat, i, s->sessions)
+ fprintf(f,
+ "%lu%c",
+ (unsigned long) i->user->uid,
+ i->sessions_by_seat_next ? ' ' : '\n');
+ }
+
+ fflush(f);
+
+ if (ferror(f) || rename(temp_path, s->state_file) < 0) {
+ r = -errno;
+ unlink(s->state_file);
+ unlink(temp_path);
+ }
+
+ fclose(f);
+ free(temp_path);
+
+finish:
+ if (r < 0)
+ log_error("Failed to save seat data for %s: %s", s->id, strerror(-r));
+
+ return r;
+}
+
+int seat_load(Seat *s) {
+ assert(s);
+
+ /* There isn't actually anything to read here ... */
+
+ return 0;
+}
+
+static int vt_allocate(int vtnr) {
+ int fd, r;
+ char *p;
+
+ assert(vtnr >= 1);
+
+ if (asprintf(&p, "/dev/tty%i", vtnr) < 0)
+ return -ENOMEM;
+
+ fd = open_terminal(p, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ free(p);
+
+ r = fd < 0 ? -errno : 0;
+
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+int seat_preallocate_vts(Seat *s) {
+ int r = 0;
+ unsigned i;
+
+ assert(s);
+ assert(s->manager);
+
+ log_debug("Preallocating VTs...");
+
+ if (s->manager->n_autovts <= 0)
+ return 0;
+
+ if (!seat_is_vtconsole(s))
+ return 0;
+
+ for (i = 1; i <= s->manager->n_autovts; i++) {
+ int q;
+
+ q = vt_allocate(i);
+ if (q < 0) {
+ log_error("Failed to preallocate VT %i: %s", i, strerror(-q));
+ r = q;
+ }
+ }
+
+ return r;
+}
+
+int seat_apply_acls(Seat *s, Session *old_active) {
+ int r;
+
+ assert(s);
+
+ r = devnode_acl_all(s->manager->udev,
+ s->id,
+ false,
+ !!old_active, old_active ? old_active->user->uid : 0,
+ !!s->active, s->active ? s->active->user->uid : 0);
+
+ if (r < 0)
+ log_error("Failed to apply ACLs: %s", strerror(-r));
+
+ return r;
+}
+
+int seat_set_active(Seat *s, Session *session) {
+ Session *old_active;
+
+ assert(s);
+ assert(!session || session->seat == s);
+
+ if (session == s->active)
+ return 0;
+
+ old_active = s->active;
+ s->active = session;
+
+ seat_apply_acls(s, old_active);
+
+ if (session && session->started)
+ session_send_changed(session, "Active\0");
+
+ if (!session || session->started)
+ seat_send_changed(s, "ActiveSession\0");
+
+ seat_save(s);
+
+ if (session) {
+ session_save(session);
+ user_save(session->user);
+ }
+
+ if (old_active) {
+ session_save(old_active);
+ user_save(old_active->user);
+ }
+
+ return 0;
+}
+
+int seat_active_vt_changed(Seat *s, int vtnr) {
+ Session *i, *new_active = NULL;
+ int r;
+
+ assert(s);
+ assert(vtnr >= 1);
+
+ if (!seat_is_vtconsole(s))
+ return -EINVAL;
+
+ log_debug("VT changed to %i", vtnr);
+
+ LIST_FOREACH(sessions_by_seat, i, s->sessions)
+ if (i->vtnr == vtnr) {
+ new_active = i;
+ break;
+ }
+
+ r = seat_set_active(s, new_active);
+ manager_spawn_autovt(s->manager, vtnr);
+
+ return r;
+}
+
+int seat_read_active_vt(Seat *s) {
+ char t[64];
+ ssize_t k;
+ int r, vtnr;
+
+ assert(s);
+
+ if (!seat_is_vtconsole(s))
+ return 0;
+
+ lseek(s->manager->console_active_fd, SEEK_SET, 0);
+
+ k = read(s->manager->console_active_fd, t, sizeof(t)-1);
+ if (k <= 0) {
+ log_error("Failed to read current console: %s", k < 0 ? strerror(-errno) : "EOF");
+ return k < 0 ? -errno : -EIO;
+ }
+
+ t[k] = 0;
+ truncate_nl(t);
+
+ if (!startswith(t, "tty")) {
+ log_error("Hm, /sys/class/tty/tty0/active is badly formatted.");
+ return -EIO;
+ }
+
+ r = safe_atoi(t+3, &vtnr);
+ if (r < 0) {
+ log_error("Failed to parse VT number %s", t+3);
+ return r;
+ }
+
+ if (vtnr <= 0) {
+ log_error("VT number invalid: %s", t+3);
+ return -EIO;
+ }
+
+ return seat_active_vt_changed(s, vtnr);
+}
+
+int seat_start(Seat *s) {
+ assert(s);
+
+ if (s->started)
+ return 0;
+
+ log_info("New seat %s.", s->id);
+
+ /* Initialize VT magic stuff */
+ seat_preallocate_vts(s);
+
+ /* Read current VT */
+ seat_read_active_vt(s);
+
+ s->started = true;
+
+ /* Save seat data */
+ seat_save(s);
+
+ seat_send_signal(s, true);
+
+ return 0;
+}
+
+int seat_stop(Seat *s) {
+ int r = 0;
+
+ assert(s);
+
+ if (s->started)
+ log_info("Removed seat %s.", s->id);
+
+ seat_stop_sessions(s);
+
+ unlink(s->state_file);
+ seat_add_to_gc_queue(s);
+
+ if (s->started)
+ seat_send_signal(s, false);
+
+ s->started = false;
+
+ return r;
+}
+
+int seat_stop_sessions(Seat *s) {
+ Session *session;
+ int r = 0, k;
+
+ assert(s);
+
+ LIST_FOREACH(sessions_by_seat, session, s->sessions) {
+ k = session_stop(session);
+ if (k < 0)
+ r = k;
+ }
+
+ return r;
+}
+
+int seat_attach_session(Seat *s, Session *session) {
+ assert(s);
+ assert(session);
+ assert(!session->seat);
+
+ if (!seat_is_vtconsole(s) && s->sessions)
+ return -EEXIST;
+
+ session->seat = s;
+ LIST_PREPEND(Session, sessions_by_seat, s->sessions, session);
+
+ seat_send_changed(s, "Sessions\0");
+
+ if (!seat_is_vtconsole(s)) {
+ assert(!s->active);
+ seat_set_active(s, session);
+ }
+
+ return 0;
+}
+
+bool seat_is_vtconsole(Seat *s) {
+ assert(s);
+
+ return s->manager->vtconsole == s;
+}
+
+int seat_get_idle_hint(Seat *s, dual_timestamp *t) {
+ Session *session;
+ bool idle_hint = true;
+ dual_timestamp ts = { 0, 0 };
+
+ assert(s);
+
+ LIST_FOREACH(sessions_by_seat, session, s->sessions) {
+ dual_timestamp k;
+ int ih;
+
+ ih = session_get_idle_hint(session, &k);
+ if (ih < 0)
+ return ih;
+
+ if (!ih) {
+ if (!idle_hint) {
+ if (k.monotonic < ts.monotonic)
+ ts = k;
+ } else {
+ idle_hint = false;
+ ts = k;
+ }
+ } else if (idle_hint) {
+
+ if (k.monotonic > ts.monotonic)
+ ts = k;
+ }
+ }
+
+ if (t)
+ *t = ts;
+
+ return idle_hint;
+}
+
+int seat_check_gc(Seat *s, bool drop_not_started) {
+ assert(s);
+
+ if (drop_not_started && !s->started)
+ return 0;
+
+ if (seat_is_vtconsole(s))
+ return 1;
+
+ return !!s->devices;
+}
+
+void seat_add_to_gc_queue(Seat *s) {
+ assert(s);
+
+ if (s->in_gc_queue)
+ return;
+
+ LIST_PREPEND(Seat, gc_queue, s->manager->seat_gc_queue, s);
+ s->in_gc_queue = true;
+}
+
+static bool seat_name_valid_char(char c) {
+ return
+ (c >= 'a' && c <= 'z') ||
+ (c >= 'A' && c <= 'Z') ||
+ (c >= '0' && c <= '9') ||
+ c == '-' ||
+ c == '_';
+}
+
+bool seat_name_is_valid(const char *name) {
+ const char *p;
+
+ assert(name);
+
+ if (!startswith(name, "seat"))
+ return false;
+
+ if (!name[4])
+ return false;
+
+ for (p = name; *p; p++)
+ if (!seat_name_valid_char(*p))
+ return false;
+
+ if (strlen(name) > 255)
+ return false;
+
+ return true;
+}
diff --git a/src/login/logind-seat.h b/src/login/logind-seat.h
new file mode 100644
index 0000000000..5bce1434e9
--- /dev/null
+++ b/src/login/logind-seat.h
@@ -0,0 +1,82 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foologindseathfoo
+#define foologindseathfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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/>.
+***/
+
+typedef struct Seat Seat;
+
+#include "list.h"
+#include "util.h"
+#include "logind.h"
+#include "logind-device.h"
+#include "logind-session.h"
+
+struct Seat {
+ Manager *manager;
+ char *id;
+
+ char *state_file;
+
+ LIST_HEAD(Device, devices);
+
+ Session *active;
+ LIST_HEAD(Session, sessions);
+
+ bool in_gc_queue:1;
+ bool started:1;
+
+ LIST_FIELDS(Seat, gc_queue);
+};
+
+Seat *seat_new(Manager *m, const char *id);
+void seat_free(Seat *s);
+
+int seat_save(Seat *s);
+int seat_load(Seat *s);
+
+int seat_apply_acls(Seat *s, Session *old_active);
+int seat_set_active(Seat *s, Session *session);
+int seat_active_vt_changed(Seat *s, int vtnr);
+int seat_read_active_vt(Seat *s);
+int seat_preallocate_vts(Seat *s);
+
+int seat_attach_session(Seat *s, Session *session);
+
+bool seat_is_vtconsole(Seat *s);
+int seat_get_idle_hint(Seat *s, dual_timestamp *t);
+
+int seat_start(Seat *s);
+int seat_stop(Seat *s);
+int seat_stop_sessions(Seat *s);
+
+int seat_check_gc(Seat *s, bool drop_not_started);
+void seat_add_to_gc_queue(Seat *s);
+
+bool seat_name_is_valid(const char *name);
+char *seat_bus_path(Seat *s);
+
+extern const DBusObjectPathVTable bus_seat_vtable;
+
+int seat_send_signal(Seat *s, bool new_seat);
+int seat_send_changed(Seat *s, const char *properties);
+
+#endif
diff --git a/src/login/logind-session-dbus.c b/src/login/logind-session-dbus.c
new file mode 100644
index 0000000000..dc0ef5b3d6
--- /dev/null
+++ b/src/login/logind-session-dbus.c
@@ -0,0 +1,515 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <string.h>
+
+#include "logind.h"
+#include "logind-session.h"
+#include "dbus-common.h"
+#include "util.h"
+
+#define BUS_SESSION_INTERFACE \
+ " <interface name=\"org.freedesktop.login1.Session\">\n" \
+ " <method name=\"Terminate\"/>\n" \
+ " <method name=\"Activate\"/>\n" \
+ " <method name=\"Lock\"/>\n" \
+ " <method name=\"Unlock\"/>\n" \
+ " <method name=\"SetIdleHint\">\n" \
+ " <arg name=\"b\" type=\"b\"/>\n" \
+ " </method>\n" \
+ " <method name=\"Kill\">\n" \
+ " <arg name=\"who\" type=\"s\"/>\n" \
+ " <arg name=\"signal\" type=\"s\"/>\n" \
+ " </method>\n" \
+ " <property name=\"Id\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"User\" type=\"(uo)\" access=\"read\"/>\n" \
+ " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"ControlGroupPath\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"VTNr\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Seat\" type=\"(so)\" access=\"read\"/>\n" \
+ " <property name=\"TTY\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Display\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Remote\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"RemoteHost\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"RemoteUser\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Service\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Leader\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Audit\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Type\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Active\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"KillProcesses\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_SESSION_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.login1.Session\0"
+
+static int bus_session_append_seat(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ Session *s = data;
+ const char *id, *path;
+ char *p = NULL;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ if (s->seat) {
+ id = s->seat->id;
+ path = p = seat_bus_path(s->seat);
+
+ if (!p)
+ return -ENOMEM;
+ } else {
+ id = "";
+ path = "/";
+ }
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_session_append_user(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ Session *s = data;
+ char *p = NULL;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ p = user_bus_path(s->user);
+ if (!p)
+ return -ENOMEM;
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &s->user->uid) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_session_append_active(DBusMessageIter *i, const char *property, void *data) {
+ Session *s = data;
+ dbus_bool_t b;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ b = session_is_active(s);
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_session_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
+ Session *s = data;
+ int b;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ b = session_get_idle_hint(s, NULL) > 0;
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_session_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
+ Session *s = data;
+ dual_timestamp t;
+ uint64_t u;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ session_get_idle_hint(s, &t);
+ u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_session_append_type, session_type, SessionType);
+
+static int get_session_for_path(Manager *m, const char *path, Session **_s) {
+ Session *s;
+ char *id;
+
+ assert(m);
+ assert(path);
+ assert(_s);
+
+ if (!startswith(path, "/org/freedesktop/login1/session/"))
+ return -EINVAL;
+
+ id = bus_path_unescape(path + 32);
+ if (!id)
+ return -ENOMEM;
+
+ s = hashmap_get(m->sessions, id);
+ free(id);
+
+ if (!s)
+ return -ENOENT;
+
+ *_s = s;
+ return 0;
+}
+
+static DBusHandlerResult session_message_dispatch(
+ Session *s,
+ DBusConnection *connection,
+ DBusMessage *message) {
+
+ const BusProperty properties[] = {
+ { "org.freedesktop.login1.Session", "Id", bus_property_append_string, "s", s->id },
+ { "org.freedesktop.login1.Session", "User", bus_session_append_user, "(uo)", s },
+ { "org.freedesktop.login1.Session", "Name", bus_property_append_string, "s", s->user->name },
+ { "org.freedesktop.login1.Session", "Timestamp", bus_property_append_usec, "t", &s->timestamp.realtime },
+ { "org.freedesktop.login1.Session", "TimestampMonotonic", bus_property_append_usec, "t", &s->timestamp.monotonic },
+ { "org.freedesktop.login1.Session", "ControlGroupPath", bus_property_append_string, "s", s->cgroup_path },
+ { "org.freedesktop.login1.Session", "VTNr", bus_property_append_uint32, "u", &s->vtnr },
+ { "org.freedesktop.login1.Session", "Seat", bus_session_append_seat, "(so)", s },
+ { "org.freedesktop.login1.Session", "TTY", bus_property_append_string, "s", s->tty },
+ { "org.freedesktop.login1.Session", "Display", bus_property_append_string, "s", s->display },
+ { "org.freedesktop.login1.Session", "Remote", bus_property_append_bool, "b", &s->remote },
+ { "org.freedesktop.login1.Session", "RemoteUser", bus_property_append_string, "s", s->remote_user },
+ { "org.freedesktop.login1.Session", "RemoteHost", bus_property_append_string, "s", s->remote_host },
+ { "org.freedesktop.login1.Session", "Service", bus_property_append_string, "s", s->service },
+ { "org.freedesktop.login1.Session", "Leader", bus_property_append_pid, "u", &s->leader },
+ { "org.freedesktop.login1.Session", "Audit", bus_property_append_uint32, "u", &s->audit_id },
+ { "org.freedesktop.login1.Session", "Type", bus_session_append_type, "s", &s->type },
+ { "org.freedesktop.login1.Session", "Active", bus_session_append_active, "b", s },
+ { "org.freedesktop.login1.Session", "Controllers", bus_property_append_strv, "as", s->controllers },
+ { "org.freedesktop.login1.Session", "ResetControllers", bus_property_append_strv, "as", s->reset_controllers },
+ { "org.freedesktop.login1.Session", "KillProcesses", bus_property_append_bool, "b", &s->kill_processes },
+ { "org.freedesktop.login1.Session", "IdleHint", bus_session_append_idle_hint, "b", s },
+ { "org.freedesktop.login1.Session", "IdleSinceHint", bus_session_append_idle_hint_since, "t", s },
+ { "org.freedesktop.login1.Session", "IdleSinceHintMonotonic", bus_session_append_idle_hint_since, "t", s },
+ { NULL, NULL, NULL, NULL, NULL }
+ };
+
+ DBusError error;
+ DBusMessage *reply = NULL;
+ int r;
+
+ assert(s);
+ assert(connection);
+ assert(message);
+
+ dbus_error_init(&error);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Terminate")) {
+
+ r = session_stop(s);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Activate")) {
+
+ r = session_activate(s);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Lock") ||
+ dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Unlock")) {
+
+ if (session_send_signal(s, streq(dbus_message_get_member(message), "Lock")) < 0)
+ goto oom;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "SetIdleHint")) {
+ dbus_bool_t b;
+ unsigned long ul;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), &error);
+ if (ul == (unsigned long) -1)
+ return bus_send_error_reply(connection, message, &error, -EIO);
+
+ if (ul != 0 && ul != s->user->uid)
+ return bus_send_error_reply(connection, message, NULL, -EPERM);
+
+ session_set_idle_hint(s, b);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Kill")) {
+ const char *swho;
+ int32_t signo;
+ KillWho who;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &swho,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (isempty(swho))
+ who = KILL_ALL;
+ else {
+ who = kill_who_from_string(swho);
+ if (who < 0)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+ }
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = session_kill(s, who, signo);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else
+ return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
+
+ if (reply) {
+ if (!dbus_connection_send(connection, reply, NULL))
+ goto oom;
+
+ dbus_message_unref(reply);
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+oom:
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+static DBusHandlerResult session_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+ Session *s;
+ int r;
+
+ r = get_session_for_path(m, dbus_message_get_path(message), &s);
+ if (r < 0) {
+
+ if (r == -ENOMEM)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ if (r == -ENOENT) {
+ DBusError e;
+
+ dbus_error_init(&e);
+ dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown session");
+ return bus_send_error_reply(connection, message, &e, r);
+ }
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ return session_message_dispatch(s, connection, message);
+}
+
+const DBusObjectPathVTable bus_session_vtable = {
+ .message_function = session_message_handler
+};
+
+char *session_bus_path(Session *s) {
+ char *t, *r;
+
+ assert(s);
+
+ t = bus_path_escape(s->id);
+ if (!t)
+ return NULL;
+
+ r = strappend("/org/freedesktop/login1/session/", t);
+ free(t);
+
+ return r;
+}
+
+int session_send_signal(Session *s, bool new_session) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+ char *p = NULL;
+
+ assert(s);
+
+ m = dbus_message_new_signal("/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ new_session ? "SessionNew" : "SessionRemoved");
+
+ if (!m)
+ return -ENOMEM;
+
+ p = session_bus_path(s);
+ if (!p)
+ goto finish;
+
+ if (!dbus_message_append_args(
+ m,
+ DBUS_TYPE_STRING, &s->id,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID))
+ goto finish;
+
+ if (!dbus_connection_send(s->manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ dbus_message_unref(m);
+ free(p);
+
+ return r;
+}
+
+int session_send_changed(Session *s, const char *properties) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+ char *p = NULL;
+
+ assert(s);
+
+ if (!s->started)
+ return 0;
+
+ p = session_bus_path(s);
+ if (!p)
+ return -ENOMEM;
+
+ m = bus_properties_changed_new(p, "org.freedesktop.login1.Session", properties);
+ if (!m)
+ goto finish;
+
+ if (!dbus_connection_send(s->manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+ free(p);
+
+ return r;
+}
+
+int session_send_lock(Session *s, bool lock) {
+ DBusMessage *m;
+ bool b;
+ char *p;
+
+ assert(s);
+
+ p = session_bus_path(s);
+ if (!p)
+ return -ENOMEM;
+
+ m = dbus_message_new_signal(p, "org.freedesktop.login1.Session", lock ? "Lock" : "Unlock");
+ free(p);
+
+ if (!m)
+ return -ENOMEM;
+
+ b = dbus_connection_send(s->manager->bus, m, NULL);
+ dbus_message_unref(m);
+
+ if (!b)
+ return -ENOMEM;
+
+ return 0;
+}
diff --git a/src/login/logind-session.c b/src/login/logind-session.c
new file mode 100644
index 0000000000..63ee75808b
--- /dev/null
+++ b/src/login/logind-session.c
@@ -0,0 +1,945 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/epoll.h>
+#include <fcntl.h>
+
+#include "logind-session.h"
+#include "strv.h"
+#include "util.h"
+#include "cgroup-util.h"
+
+#define IDLE_THRESHOLD_USEC (5*USEC_PER_MINUTE)
+
+Session* session_new(Manager *m, User *u, const char *id) {
+ Session *s;
+
+ assert(m);
+ assert(id);
+
+ s = new0(Session, 1);
+ if (!s)
+ return NULL;
+
+ s->state_file = strappend("/run/systemd/sessions/", id);
+ if (!s->state_file) {
+ free(s);
+ return NULL;
+ }
+
+ s->id = file_name_from_path(s->state_file);
+
+ if (hashmap_put(m->sessions, s->id, s) < 0) {
+ free(s->id);
+ free(s);
+ return NULL;
+ }
+
+ s->manager = m;
+ s->fifo_fd = -1;
+ s->user = u;
+
+ LIST_PREPEND(Session, sessions_by_user, u->sessions, s);
+
+ return s;
+}
+
+void session_free(Session *s) {
+ assert(s);
+
+ if (s->in_gc_queue)
+ LIST_REMOVE(Session, gc_queue, s->manager->session_gc_queue, s);
+
+ if (s->user) {
+ LIST_REMOVE(Session, sessions_by_user, s->user->sessions, s);
+
+ if (s->user->display == s)
+ s->user->display = NULL;
+ }
+
+ if (s->seat) {
+ if (s->seat->active == s)
+ s->seat->active = NULL;
+
+ LIST_REMOVE(Session, sessions_by_seat, s->seat->sessions, s);
+ }
+
+ if (s->cgroup_path)
+ hashmap_remove(s->manager->cgroups, s->cgroup_path);
+
+ free(s->cgroup_path);
+ strv_free(s->controllers);
+
+ free(s->tty);
+ free(s->display);
+ free(s->remote_host);
+ free(s->remote_user);
+ free(s->service);
+
+ hashmap_remove(s->manager->sessions, s->id);
+
+ session_remove_fifo(s);
+
+ free(s->state_file);
+ free(s);
+}
+
+int session_save(Session *s) {
+ FILE *f;
+ int r = 0;
+ char *temp_path;
+
+ assert(s);
+
+ if (!s->started)
+ return 0;
+
+ r = safe_mkdir("/run/systemd/sessions", 0755, 0, 0);
+ if (r < 0)
+ goto finish;
+
+ r = fopen_temporary(s->state_file, &f, &temp_path);
+ if (r < 0)
+ goto finish;
+
+ assert(s->user);
+
+ fchmod(fileno(f), 0644);
+
+ fprintf(f,
+ "# This is private data. Do not parse.\n"
+ "UID=%lu\n"
+ "USER=%s\n"
+ "ACTIVE=%i\n"
+ "REMOTE=%i\n"
+ "KILL_PROCESSES=%i\n",
+ (unsigned long) s->user->uid,
+ s->user->name,
+ session_is_active(s),
+ s->remote,
+ s->kill_processes);
+
+ if (s->type >= 0)
+ fprintf(f,
+ "TYPE=%s\n",
+ session_type_to_string(s->type));
+
+ if (s->cgroup_path)
+ fprintf(f,
+ "CGROUP=%s\n",
+ s->cgroup_path);
+
+ if (s->fifo_path)
+ fprintf(f,
+ "FIFO=%s\n",
+ s->fifo_path);
+
+ if (s->seat)
+ fprintf(f,
+ "SEAT=%s\n",
+ s->seat->id);
+
+ if (s->tty)
+ fprintf(f,
+ "TTY=%s\n",
+ s->tty);
+
+ if (s->display)
+ fprintf(f,
+ "DISPLAY=%s\n",
+ s->display);
+
+ if (s->remote_host)
+ fprintf(f,
+ "REMOTE_HOST=%s\n",
+ s->remote_host);
+
+ if (s->remote_user)
+ fprintf(f,
+ "REMOTE_USER=%s\n",
+ s->remote_user);
+
+ if (s->service)
+ fprintf(f,
+ "SERVICE=%s\n",
+ s->service);
+
+ if (s->seat && seat_is_vtconsole(s->seat))
+ fprintf(f,
+ "VTNR=%i\n",
+ s->vtnr);
+
+ if (s->leader > 0)
+ fprintf(f,
+ "LEADER=%lu\n",
+ (unsigned long) s->leader);
+
+ if (s->audit_id > 0)
+ fprintf(f,
+ "AUDIT=%llu\n",
+ (unsigned long long) s->audit_id);
+
+ fflush(f);
+
+ if (ferror(f) || rename(temp_path, s->state_file) < 0) {
+ r = -errno;
+ unlink(s->state_file);
+ unlink(temp_path);
+ }
+
+ fclose(f);
+ free(temp_path);
+
+finish:
+ if (r < 0)
+ log_error("Failed to save session data for %s: %s", s->id, strerror(-r));
+
+ return r;
+}
+
+int session_load(Session *s) {
+ char *remote = NULL,
+ *kill_processes = NULL,
+ *seat = NULL,
+ *vtnr = NULL,
+ *leader = NULL,
+ *audit_id = NULL,
+ *type = NULL;
+
+ int k, r;
+
+ assert(s);
+
+ r = parse_env_file(s->state_file, NEWLINE,
+ "REMOTE", &remote,
+ "KILL_PROCESSES", &kill_processes,
+ "CGROUP", &s->cgroup_path,
+ "FIFO", &s->fifo_path,
+ "SEAT", &seat,
+ "TTY", &s->tty,
+ "DISPLAY", &s->display,
+ "REMOTE_HOST", &s->remote_host,
+ "REMOTE_USER", &s->remote_user,
+ "SERVICE", &s->service,
+ "VTNR", &vtnr,
+ "LEADER", &leader,
+ "TYPE", &type,
+ NULL);
+
+ if (r < 0)
+ goto finish;
+
+ if (remote) {
+ k = parse_boolean(remote);
+ if (k >= 0)
+ s->remote = k;
+ }
+
+ if (kill_processes) {
+ k = parse_boolean(kill_processes);
+ if (k >= 0)
+ s->kill_processes = k;
+ }
+
+ if (seat && !s->seat) {
+ Seat *o;
+
+ o = hashmap_get(s->manager->seats, seat);
+ if (o)
+ seat_attach_session(o, s);
+ }
+
+ if (vtnr && s->seat && seat_is_vtconsole(s->seat)) {
+ int v;
+
+ k = safe_atoi(vtnr, &v);
+ if (k >= 0 && v >= 1)
+ s->vtnr = v;
+ }
+
+ if (leader) {
+ pid_t pid;
+
+ k = parse_pid(leader, &pid);
+ if (k >= 0 && pid >= 1) {
+ s->leader = pid;
+
+ audit_session_from_pid(pid, &s->audit_id);
+ }
+ }
+
+ if (type) {
+ SessionType t;
+
+ t = session_type_from_string(type);
+ if (t >= 0)
+ s->type = t;
+ }
+
+ if (s->fifo_path) {
+ int fd;
+
+ /* If we open an unopened pipe for reading we will not
+ get an EOF. to trigger an EOF we hence open it for
+ reading, but close it right-away which then will
+ trigger the EOF. */
+
+ fd = session_create_fifo(s);
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+ }
+
+
+finish:
+ free(remote);
+ free(kill_processes);
+ free(seat);
+ free(vtnr);
+ free(leader);
+ free(audit_id);
+
+ return r;
+}
+
+int session_activate(Session *s) {
+ int r;
+ Session *old_active;
+
+ assert(s);
+
+ if (s->vtnr < 0)
+ return -ENOTSUP;
+
+ if (!s->seat)
+ return -ENOTSUP;
+
+ if (s->seat->active == s)
+ return 0;
+
+ assert(seat_is_vtconsole(s->seat));
+
+ r = chvt(s->vtnr);
+ if (r < 0)
+ return r;
+
+ old_active = s->seat->active;
+ s->seat->active = s;
+
+ return seat_apply_acls(s->seat, old_active);
+}
+
+static int session_link_x11_socket(Session *s) {
+ char *t, *f, *c;
+ size_t k;
+
+ assert(s);
+ assert(s->user);
+ assert(s->user->runtime_path);
+
+ if (s->user->display)
+ return 0;
+
+ if (!s->display || !display_is_local(s->display))
+ return 0;
+
+ k = strspn(s->display+1, "0123456789");
+ f = new(char, sizeof("/tmp/.X11-unix/X") + k);
+ if (!f) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+
+ c = stpcpy(f, "/tmp/.X11-unix/X");
+ memcpy(c, s->display+1, k);
+ c[k] = 0;
+
+ if (access(f, F_OK) < 0) {
+ log_warning("Session %s has display %s with nonexisting socket %s.", s->id, s->display, f);
+ free(f);
+ return -ENOENT;
+ }
+
+ t = strappend(s->user->runtime_path, "/X11/display");
+ if (!t) {
+ log_error("Out of memory");
+ free(f);
+ return -ENOMEM;
+ }
+
+ mkdir_parents(t, 0755);
+
+ if (link(f, t) < 0) {
+ if (errno == EEXIST) {
+ unlink(t);
+
+ if (link(f, t) >= 0)
+ goto done;
+ }
+
+ if (symlink(f, t) < 0) {
+
+ if (errno == EEXIST) {
+ unlink(t);
+
+ if (symlink(f, t) >= 0)
+ goto done;
+ }
+
+ log_error("Failed to link %s to %s: %m", f, t);
+ free(f);
+ free(t);
+ return -errno;
+ }
+ }
+
+done:
+ log_info("Linked %s to %s.", f, t);
+ free(f);
+ free(t);
+
+ s->user->display = s;
+
+ return 0;
+}
+
+static int session_create_one_group(Session *s, const char *controller, const char *path) {
+ int r;
+
+ assert(s);
+ assert(controller);
+ assert(path);
+
+ if (s->leader > 0) {
+ r = cg_create_and_attach(controller, path, s->leader);
+ if (r < 0)
+ r = cg_create(controller, path);
+ } else
+ r = cg_create(controller, path);
+
+ if (r < 0)
+ return r;
+
+ r = cg_set_task_access(controller, path, 0644, s->user->uid, s->user->gid);
+ if (r >= 0)
+ r = cg_set_group_access(controller, path, 0755, s->user->uid, s->user->gid);
+
+ return r;
+}
+
+static int session_create_cgroup(Session *s) {
+ char **k;
+ char *p;
+ int r;
+
+ assert(s);
+ assert(s->user);
+ assert(s->user->cgroup_path);
+
+ if (!s->cgroup_path) {
+ if (asprintf(&p, "%s/%s", s->user->cgroup_path, s->id) < 0) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+ } else
+ p = s->cgroup_path;
+
+ r = session_create_one_group(s, SYSTEMD_CGROUP_CONTROLLER, p);
+ if (r < 0) {
+ log_error("Failed to create "SYSTEMD_CGROUP_CONTROLLER":%s: %s", p, strerror(-r));
+ free(p);
+ s->cgroup_path = NULL;
+ return r;
+ }
+
+ s->cgroup_path = p;
+
+ STRV_FOREACH(k, s->controllers) {
+
+ if (strv_contains(s->reset_controllers, *k))
+ continue;
+
+ r = session_create_one_group(s, *k, p);
+ if (r < 0)
+ log_warning("Failed to create %s:%s: %s", *k, p, strerror(-r));
+ }
+
+ STRV_FOREACH(k, s->manager->controllers) {
+
+ if (strv_contains(s->reset_controllers, *k) ||
+ strv_contains(s->manager->reset_controllers, *k) ||
+ strv_contains(s->controllers, *k))
+ continue;
+
+ r = session_create_one_group(s, *k, p);
+ if (r < 0)
+ log_warning("Failed to create %s:%s: %s", *k, p, strerror(-r));
+ }
+
+ if (s->leader > 0) {
+
+ STRV_FOREACH(k, s->reset_controllers) {
+ r = cg_attach(*k, "/", s->leader);
+ if (r < 0)
+ log_warning("Failed to reset controller %s: %s", *k, strerror(-r));
+
+ }
+
+ STRV_FOREACH(k, s->manager->reset_controllers) {
+
+ if (strv_contains(s->reset_controllers, *k) ||
+ strv_contains(s->controllers, *k))
+ continue;
+
+ r = cg_attach(*k, "/", s->leader);
+ if (r < 0)
+ log_warning("Failed to reset controller %s: %s", *k, strerror(-r));
+
+ }
+ }
+
+ hashmap_put(s->manager->cgroups, s->cgroup_path, s);
+
+ return 0;
+}
+
+int session_start(Session *s) {
+ int r;
+
+ assert(s);
+ assert(s->user);
+
+ if (s->started)
+ return 0;
+
+ r = user_start(s->user);
+ if (r < 0)
+ return r;
+
+ log_full(s->type == SESSION_TTY || s->type == SESSION_X11 ? LOG_INFO : LOG_DEBUG,
+ "New session %s of user %s.", s->id, s->user->name);
+
+ /* Create cgroup */
+ r = session_create_cgroup(s);
+ if (r < 0)
+ return r;
+
+ /* Create X11 symlink */
+ session_link_x11_socket(s);
+
+ dual_timestamp_get(&s->timestamp);
+
+ if (s->seat)
+ seat_read_active_vt(s->seat);
+
+ s->started = true;
+
+ /* Save session data */
+ session_save(s);
+ user_save(s->user);
+
+ session_send_signal(s, true);
+
+ if (s->seat) {
+ seat_save(s->seat);
+
+ if (s->seat->active == s)
+ seat_send_changed(s->seat, "Sessions\0ActiveSession\0");
+ else
+ seat_send_changed(s->seat, "Sessions\0");
+ }
+
+ user_send_changed(s->user, "Sessions\0");
+
+ return 0;
+}
+
+static bool session_shall_kill(Session *s) {
+ assert(s);
+
+ if (!s->kill_processes)
+ return false;
+
+ if (strv_contains(s->manager->kill_exclude_users, s->user->name))
+ return false;
+
+ if (strv_isempty(s->manager->kill_only_users))
+ return true;
+
+ return strv_contains(s->manager->kill_only_users, s->user->name);
+}
+
+static int session_terminate_cgroup(Session *s) {
+ int r;
+ char **k;
+
+ assert(s);
+
+ if (!s->cgroup_path)
+ return 0;
+
+ cg_trim(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, false);
+
+ if (session_shall_kill(s)) {
+
+ r = cg_kill_recursive_and_wait(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, true);
+ if (r < 0)
+ log_error("Failed to kill session cgroup: %s", strerror(-r));
+
+ } else {
+ r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, true);
+ if (r < 0)
+ log_error("Failed to check session cgroup: %s", strerror(-r));
+ else if (r > 0) {
+ r = cg_delete(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path);
+ if (r < 0)
+ log_error("Failed to delete session cgroup: %s", strerror(-r));
+ } else
+ r = -EBUSY;
+ }
+
+ STRV_FOREACH(k, s->user->manager->controllers)
+ cg_trim(*k, s->cgroup_path, true);
+
+ hashmap_remove(s->manager->cgroups, s->cgroup_path);
+
+ free(s->cgroup_path);
+ s->cgroup_path = NULL;
+
+ return r;
+}
+
+static int session_unlink_x11_socket(Session *s) {
+ char *t;
+ int r;
+
+ assert(s);
+ assert(s->user);
+
+ if (s->user->display != s)
+ return 0;
+
+ s->user->display = NULL;
+
+ t = strappend(s->user->runtime_path, "/X11/display");
+ if (!t) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+
+ r = unlink(t);
+ free(t);
+
+ return r < 0 ? -errno : 0;
+}
+
+int session_stop(Session *s) {
+ int r = 0, k;
+
+ assert(s);
+
+ if (s->started)
+ log_full(s->type == SESSION_TTY || s->type == SESSION_X11 ? LOG_INFO : LOG_DEBUG,
+ "Removed session %s.", s->id);
+
+ /* Kill cgroup */
+ k = session_terminate_cgroup(s);
+ if (k < 0)
+ r = k;
+
+ /* Remove X11 symlink */
+ session_unlink_x11_socket(s);
+
+ unlink(s->state_file);
+ session_add_to_gc_queue(s);
+ user_add_to_gc_queue(s->user);
+
+ if (s->started)
+ session_send_signal(s, false);
+
+ if (s->seat) {
+ if (s->seat->active == s)
+ seat_set_active(s->seat, NULL);
+
+ seat_send_changed(s->seat, "Sessions\0");
+ }
+
+ user_send_changed(s->user, "Sessions\0");
+
+ s->started = false;
+
+ return r;
+}
+
+bool session_is_active(Session *s) {
+ assert(s);
+
+ if (!s->seat)
+ return true;
+
+ return s->seat->active == s;
+}
+
+int session_get_idle_hint(Session *s, dual_timestamp *t) {
+ char *p;
+ struct stat st;
+ usec_t u, n;
+ bool b;
+ int k;
+
+ assert(s);
+
+ if (s->idle_hint) {
+ if (t)
+ *t = s->idle_hint_timestamp;
+
+ return s->idle_hint;
+ }
+
+ if (isempty(s->tty))
+ goto dont_know;
+
+ if (s->tty[0] != '/') {
+ p = strappend("/dev/", s->tty);
+ if (!p)
+ return -ENOMEM;
+ } else
+ p = NULL;
+
+ if (!startswith(p ? p : s->tty, "/dev/")) {
+ free(p);
+ goto dont_know;
+ }
+
+ k = lstat(p ? p : s->tty, &st);
+ free(p);
+
+ if (k < 0)
+ goto dont_know;
+
+ u = timespec_load(&st.st_atim);
+ n = now(CLOCK_REALTIME);
+ b = u + IDLE_THRESHOLD_USEC < n;
+
+ if (t)
+ dual_timestamp_from_realtime(t, u + b ? IDLE_THRESHOLD_USEC : 0);
+
+ return b;
+
+dont_know:
+ if (t)
+ *t = s->idle_hint_timestamp;
+
+ return 0;
+}
+
+void session_set_idle_hint(Session *s, bool b) {
+ assert(s);
+
+ if (s->idle_hint == b)
+ return;
+
+ s->idle_hint = b;
+ dual_timestamp_get(&s->idle_hint_timestamp);
+
+ session_send_changed(s,
+ "IdleHint\0"
+ "IdleSinceHint\0"
+ "IdleSinceHintMonotonic\0");
+
+ if (s->seat)
+ seat_send_changed(s->seat,
+ "IdleHint\0"
+ "IdleSinceHint\0"
+ "IdleSinceHintMonotonic\0");
+
+ user_send_changed(s->user,
+ "IdleHint\0"
+ "IdleSinceHint\0"
+ "IdleSinceHintMonotonic\0");
+
+ manager_send_changed(s->manager,
+ "IdleHint\0"
+ "IdleSinceHint\0"
+ "IdleSinceHintMonotonic\0");
+}
+
+int session_create_fifo(Session *s) {
+ int r;
+
+ assert(s);
+
+ /* Create FIFO */
+ if (!s->fifo_path) {
+ r = safe_mkdir("/run/systemd/sessions", 0755, 0, 0);
+ if (r < 0)
+ return r;
+
+ if (asprintf(&s->fifo_path, "/run/systemd/sessions/%s.ref", s->id) < 0)
+ return -ENOMEM;
+
+ if (mkfifo(s->fifo_path, 0600) < 0 && errno != EEXIST)
+ return -errno;
+ }
+
+ /* Open reading side */
+ if (s->fifo_fd < 0) {
+ struct epoll_event ev;
+
+ s->fifo_fd = open(s->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY);
+ if (s->fifo_fd < 0)
+ return -errno;
+
+ r = hashmap_put(s->manager->fifo_fds, INT_TO_PTR(s->fifo_fd + 1), s);
+ if (r < 0)
+ return r;
+
+ zero(ev);
+ ev.events = 0;
+ ev.data.u32 = FD_FIFO_BASE + s->fifo_fd;
+
+ if (epoll_ctl(s->manager->epoll_fd, EPOLL_CTL_ADD, s->fifo_fd, &ev) < 0)
+ return -errno;
+ }
+
+ /* Open writing side */
+ r = open(s->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY);
+ if (r < 0)
+ return -errno;
+
+ return r;
+}
+
+void session_remove_fifo(Session *s) {
+ assert(s);
+
+ if (s->fifo_fd >= 0) {
+ assert_se(hashmap_remove(s->manager->fifo_fds, INT_TO_PTR(s->fifo_fd + 1)) == s);
+ assert_se(epoll_ctl(s->manager->epoll_fd, EPOLL_CTL_DEL, s->fifo_fd, NULL) == 0);
+ close_nointr_nofail(s->fifo_fd);
+ s->fifo_fd = -1;
+ }
+
+ if (s->fifo_path) {
+ unlink(s->fifo_path);
+ free(s->fifo_path);
+ s->fifo_path = NULL;
+ }
+}
+
+int session_check_gc(Session *s, bool drop_not_started) {
+ int r;
+
+ assert(s);
+
+ if (drop_not_started && !s->started)
+ return 0;
+
+ if (s->fifo_fd >= 0) {
+
+ r = pipe_eof(s->fifo_fd);
+ if (r < 0)
+ return r;
+
+ if (r == 0)
+ return 1;
+ }
+
+ if (s->cgroup_path) {
+
+ r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, false);
+ if (r < 0)
+ return r;
+
+ if (r <= 0)
+ return 1;
+ }
+
+ return 0;
+}
+
+void session_add_to_gc_queue(Session *s) {
+ assert(s);
+
+ if (s->in_gc_queue)
+ return;
+
+ LIST_PREPEND(Session, gc_queue, s->manager->session_gc_queue, s);
+ s->in_gc_queue = true;
+}
+
+int session_kill(Session *s, KillWho who, int signo) {
+ int r = 0;
+ Set *pid_set = NULL;
+
+ assert(s);
+
+ if (!s->cgroup_path)
+ return -ESRCH;
+
+ if (s->leader <= 0 && who == KILL_LEADER)
+ return -ESRCH;
+
+ if (s->leader > 0)
+ if (kill(s->leader, signo) < 0)
+ r = -errno;
+
+ if (who == KILL_ALL) {
+ int q;
+
+ pid_set = set_new(trivial_hash_func, trivial_compare_func);
+ if (!pid_set)
+ return -ENOMEM;
+
+ if (s->leader > 0) {
+ q = set_put(pid_set, LONG_TO_PTR(s->leader));
+ if (q < 0)
+ r = q;
+ }
+
+ q = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, signo, false, true, false, pid_set);
+ if (q < 0)
+ if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
+ r = q;
+ }
+
+ if (pid_set)
+ set_free(pid_set);
+
+ return r;
+}
+
+static const char* const session_type_table[_SESSION_TYPE_MAX] = {
+ [SESSION_TTY] = "tty",
+ [SESSION_X11] = "x11",
+ [SESSION_UNSPECIFIED] = "unspecified"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType);
+
+static const char* const kill_who_table[_KILL_WHO_MAX] = {
+ [KILL_LEADER] = "leader",
+ [KILL_ALL] = "all"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho);
diff --git a/src/login/logind-session.h b/src/login/logind-session.h
new file mode 100644
index 0000000000..8e394ac0d8
--- /dev/null
+++ b/src/login/logind-session.h
@@ -0,0 +1,124 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foologindsessionhfoo
+#define foologindsessionhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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/>.
+***/
+
+typedef struct Session Session;
+
+#include "list.h"
+#include "util.h"
+#include "logind.h"
+#include "logind-seat.h"
+#include "logind-user.h"
+
+typedef enum SessionType {
+ SESSION_UNSPECIFIED,
+ SESSION_TTY,
+ SESSION_X11,
+ _SESSION_TYPE_MAX,
+ _SESSION_TYPE_INVALID = -1
+} SessionType;
+
+typedef enum KillWho {
+ KILL_LEADER,
+ KILL_ALL,
+ _KILL_WHO_MAX,
+ _KILL_WHO_INVALID = -1
+} KillWho;
+
+struct Session {
+ Manager *manager;
+
+ char *id;
+ SessionType type;
+
+ char *state_file;
+
+ User *user;
+
+ dual_timestamp timestamp;
+
+ char *tty;
+ char *display;
+
+ bool remote;
+ char *remote_user;
+ char *remote_host;
+
+ char *service;
+
+ int vtnr;
+ Seat *seat;
+
+ pid_t leader;
+ uint32_t audit_id;
+
+ int fifo_fd;
+ char *fifo_path;
+
+ char *cgroup_path;
+ char **controllers, **reset_controllers;
+
+ bool idle_hint;
+ dual_timestamp idle_hint_timestamp;
+
+ bool kill_processes;
+ bool in_gc_queue:1;
+ bool started:1;
+
+ LIST_FIELDS(Session, sessions_by_user);
+ LIST_FIELDS(Session, sessions_by_seat);
+
+ LIST_FIELDS(Session, gc_queue);
+};
+
+Session *session_new(Manager *m, User *u, const char *id);
+void session_free(Session *s);
+int session_check_gc(Session *s, bool drop_not_started);
+void session_add_to_gc_queue(Session *s);
+int session_activate(Session *s);
+bool session_is_active(Session *s);
+int session_get_idle_hint(Session *s, dual_timestamp *t);
+void session_set_idle_hint(Session *s, bool b);
+int session_create_fifo(Session *s);
+void session_remove_fifo(Session *s);
+int session_start(Session *s);
+int session_stop(Session *s);
+int session_save(Session *s);
+int session_load(Session *s);
+int session_kill(Session *s, KillWho who, int signo);
+
+char *session_bus_path(Session *s);
+
+extern const DBusObjectPathVTable bus_session_vtable;
+
+int session_send_signal(Session *s, bool new_session);
+int session_send_changed(Session *s, const char *properties);
+int session_send_lock(Session *s, bool lock);
+
+const char* session_type_to_string(SessionType t);
+SessionType session_type_from_string(const char *s);
+
+const char *kill_who_to_string(KillWho k);
+KillWho kill_who_from_string(const char *s);
+
+#endif
diff --git a/src/login/logind-user-dbus.c b/src/login/logind-user-dbus.c
new file mode 100644
index 0000000000..3673a28bd4
--- /dev/null
+++ b/src/login/logind-user-dbus.c
@@ -0,0 +1,411 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <string.h>
+
+#include "logind.h"
+#include "logind-user.h"
+#include "dbus-common.h"
+
+#define BUS_USER_INTERFACE \
+ " <interface name=\"org.freedesktop.login1.User\">\n" \
+ " <method name=\"Terminate\"/>\n" \
+ " <method name=\"Kill\">\n" \
+ " <arg name=\"signal\" type=\"s\"/>\n" \
+ " </method>\n" \
+ " <property name=\"UID\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"GID\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"RuntimePath\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"ControlGroupPath\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Service\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Display\" type=\"(so)\" access=\"read\"/>\n" \
+ " <property name=\"State\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Sessions\" type=\"a(so)\" access=\"read\"/>\n" \
+ " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " </interface>\n" \
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_USER_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.login1.User\0"
+
+static int bus_user_append_display(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ User *u = data;
+ const char *id, *path;
+ char *p = NULL;
+
+ assert(i);
+ assert(property);
+ assert(u);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ if (u->display) {
+ id = u->display->id;
+ path = p = session_bus_path(u->display);
+
+ if (!p)
+ return -ENOMEM;
+ } else {
+ id = "";
+ path = "/";
+ }
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_user_append_state(DBusMessageIter *i, const char *property, void *data) {
+ User *u = data;
+ const char *state;
+
+ assert(i);
+ assert(property);
+ assert(u);
+
+ state = user_state_to_string(user_get_state(u));
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_user_append_sessions(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub, sub2;
+ User *u = data;
+ Session *session;
+
+ assert(i);
+ assert(property);
+ assert(u);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(so)", &sub))
+ return -ENOMEM;
+
+ LIST_FOREACH(sessions_by_user, session, u->sessions) {
+ char *p;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ return -ENOMEM;
+
+ p = session_bus_path(session);
+ if (!p)
+ return -ENOMEM;
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ return -ENOMEM;
+ }
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_user_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
+ User *u = data;
+ dbus_bool_t b;
+
+ assert(i);
+ assert(property);
+ assert(u);
+
+ b = user_get_idle_hint(u, NULL) > 0;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_user_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
+ User *u = data;
+ dual_timestamp t;
+ uint64_t k;
+
+ assert(i);
+ assert(property);
+ assert(u);
+
+ user_get_idle_hint(u, &t);
+ k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &k))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int get_user_for_path(Manager *m, const char *path, User **_u) {
+ User *u;
+ unsigned long lu;
+ int r;
+
+ assert(m);
+ assert(path);
+ assert(_u);
+
+ if (!startswith(path, "/org/freedesktop/login1/user/"))
+ return -EINVAL;
+
+ r = safe_atolu(path + 29, &lu);
+ if (r < 0)
+ return r;
+
+ u = hashmap_get(m->users, ULONG_TO_PTR(lu));
+ if (!u)
+ return -ENOENT;
+
+ *_u = u;
+ return 0;
+}
+
+static DBusHandlerResult user_message_dispatch(
+ User *u,
+ DBusConnection *connection,
+ DBusMessage *message) {
+
+ const BusProperty properties[] = {
+ { "org.freedesktop.login1.User", "UID", bus_property_append_uid, "u", &u->uid },
+ { "org.freedesktop.login1.User", "GID", bus_property_append_gid, "u", &u->gid },
+ { "org.freedesktop.login1.User", "Name", bus_property_append_string, "s", u->name },
+ { "org.freedesktop.login1.User", "Timestamp", bus_property_append_usec, "t", &u->timestamp.realtime },
+ { "org.freedesktop.login1.User", "TimestampMonotonic", bus_property_append_usec, "t", &u->timestamp.monotonic },
+ { "org.freedesktop.login1.User", "RuntimePath", bus_property_append_string, "s", u->runtime_path },
+ { "org.freedesktop.login1.User", "ControlGroupPath", bus_property_append_string, "s", u->cgroup_path },
+ { "org.freedesktop.login1.User", "Service", bus_property_append_string, "s", u->service },
+ { "org.freedesktop.login1.User", "Display", bus_user_append_display, "(so)", u },
+ { "org.freedesktop.login1.User", "State", bus_user_append_state, "s", u },
+ { "org.freedesktop.login1.User", "Sessions", bus_user_append_sessions, "a(so)", u },
+ { "org.freedesktop.login1.User", "IdleHint", bus_user_append_idle_hint, "b", u },
+ { "org.freedesktop.login1.User", "IdleSinceHint", bus_user_append_idle_hint_since, "t", u },
+ { "org.freedesktop.login1.User", "IdleSinceHintMonotonic", bus_user_append_idle_hint_since, "t", u },
+ { NULL, NULL, NULL, NULL, NULL }
+ };
+
+ DBusError error;
+ DBusMessage *reply = NULL;
+ int r;
+
+ assert(u);
+ assert(connection);
+ assert(message);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.login1.User", "Terminate")) {
+
+ r = user_stop(u);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.User", "Kill")) {
+ int32_t signo;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = user_kill(u, signo);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else
+ return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
+
+ if (reply) {
+ if (!dbus_connection_send(connection, reply, NULL))
+ goto oom;
+
+ dbus_message_unref(reply);
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+oom:
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+static DBusHandlerResult user_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+ User *u;
+ int r;
+
+ r = get_user_for_path(m, dbus_message_get_path(message), &u);
+ if (r < 0) {
+
+ if (r == -ENOMEM)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ if (r == -ENOENT) {
+ DBusError e;
+
+ dbus_error_init(&e);
+ dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown user");
+ return bus_send_error_reply(connection, message, &e, r);
+ }
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ return user_message_dispatch(u, connection, message);
+}
+
+const DBusObjectPathVTable bus_user_vtable = {
+ .message_function = user_message_handler
+};
+
+char *user_bus_path(User *u) {
+ char *s;
+
+ assert(u);
+
+ if (asprintf(&s, "/org/freedesktop/login1/user/%llu", (unsigned long long) u->uid) < 0)
+ return NULL;
+
+ return s;
+}
+
+int user_send_signal(User *u, bool new_user) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+ char *p = NULL;
+ uint32_t uid;
+
+ assert(u);
+
+ m = dbus_message_new_signal("/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ new_user ? "UserNew" : "UserRemoved");
+
+ if (!m)
+ return -ENOMEM;
+
+ p = user_bus_path(u);
+ if (!p)
+ goto finish;
+
+ uid = u->uid;
+
+ if (!dbus_message_append_args(
+ m,
+ DBUS_TYPE_UINT32, &uid,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID))
+ goto finish;
+
+ if (!dbus_connection_send(u->manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ dbus_message_unref(m);
+ free(p);
+
+ return r;
+}
+
+int user_send_changed(User *u, const char *properties) {
+ DBusMessage *m;
+ int r = -ENOMEM;
+ char *p = NULL;
+
+ assert(u);
+
+ if (!u->started)
+ return 0;
+
+ p = user_bus_path(u);
+ if (!p)
+ return -ENOMEM;
+
+ m = bus_properties_changed_new(p, "org.freedesktop.login1.User", properties);
+ if (!m)
+ goto finish;
+
+ if (!dbus_connection_send(u->manager->bus, m, NULL))
+ goto finish;
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+ free(p);
+
+ return r;
+}
diff --git a/src/login/logind-user.c b/src/login/logind-user.c
new file mode 100644
index 0000000000..56c7de4400
--- /dev/null
+++ b/src/login/logind-user.c
@@ -0,0 +1,587 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "logind-user.h"
+#include "util.h"
+#include "cgroup-util.h"
+#include "hashmap.h"
+#include "strv.h"
+
+User* user_new(Manager *m, uid_t uid, gid_t gid, const char *name) {
+ User *u;
+
+ assert(m);
+ assert(name);
+
+ u = new0(User, 1);
+ if (!u)
+ return NULL;
+
+ u->name = strdup(name);
+ if (!u->name) {
+ free(u);
+ return NULL;
+ }
+
+ if (asprintf(&u->state_file, "/run/systemd/users/%lu", (unsigned long) uid) < 0) {
+ free(u->name);
+ free(u);
+ return NULL;
+ }
+
+ if (hashmap_put(m->users, ULONG_TO_PTR((unsigned long) uid), u) < 0) {
+ free(u->state_file);
+ free(u->name);
+ free(u);
+ return NULL;
+ }
+
+ u->manager = m;
+ u->uid = uid;
+ u->gid = gid;
+
+ return u;
+}
+
+void user_free(User *u) {
+ assert(u);
+
+ if (u->in_gc_queue)
+ LIST_REMOVE(User, gc_queue, u->manager->user_gc_queue, u);
+
+ while (u->sessions)
+ session_free(u->sessions);
+
+ free(u->cgroup_path);
+
+ free(u->service);
+ free(u->runtime_path);
+
+ hashmap_remove(u->manager->users, ULONG_TO_PTR((unsigned long) u->uid));
+
+ free(u->name);
+ free(u->state_file);
+ free(u);
+}
+
+int user_save(User *u) {
+ FILE *f;
+ int r;
+ char *temp_path;
+
+ assert(u);
+ assert(u->state_file);
+
+ if (!u->started)
+ return 0;
+
+ r = safe_mkdir("/run/systemd/users", 0755, 0, 0);
+ if (r < 0)
+ goto finish;
+
+ r = fopen_temporary(u->state_file, &f, &temp_path);
+ if (r < 0)
+ goto finish;
+
+ fchmod(fileno(f), 0644);
+
+ fprintf(f,
+ "# This is private data. Do not parse.\n"
+ "NAME=%s\n"
+ "STATE=%s\n",
+ u->name,
+ user_state_to_string(user_get_state(u)));
+
+ if (u->cgroup_path)
+ fprintf(f,
+ "CGROUP=%s\n",
+ u->cgroup_path);
+
+ if (u->runtime_path)
+ fprintf(f,
+ "RUNTIME=%s\n",
+ u->runtime_path);
+
+ if (u->service)
+ fprintf(f,
+ "SERVICE=%s\n",
+ u->service);
+
+ if (u->display)
+ fprintf(f,
+ "DISPLAY=%s\n",
+ u->display->id);
+
+ if (u->sessions) {
+ Session *i;
+
+ fputs("SESSIONS=", f);
+ LIST_FOREACH(sessions_by_user, i, u->sessions) {
+ fprintf(f,
+ "%s%c",
+ i->id,
+ i->sessions_by_user_next ? ' ' : '\n');
+ }
+
+ fputs("SEATS=", f);
+ LIST_FOREACH(sessions_by_user, i, u->sessions) {
+ if (i->seat)
+ fprintf(f,
+ "%s%c",
+ i->seat->id,
+ i->sessions_by_user_next ? ' ' : '\n');
+ }
+
+ fputs("ACTIVE_SESSIONS=", f);
+ LIST_FOREACH(sessions_by_user, i, u->sessions)
+ if (session_is_active(i))
+ fprintf(f,
+ "%lu%c",
+ (unsigned long) i->user->uid,
+ i->sessions_by_user_next ? ' ' : '\n');
+
+ fputs("ACTIVE_SEATS=", f);
+ LIST_FOREACH(sessions_by_user, i, u->sessions) {
+ if (session_is_active(i) && i->seat)
+ fprintf(f,
+ "%s%c",
+ i->seat->id,
+ i->sessions_by_user_next ? ' ' : '\n');
+ }
+ }
+
+ fflush(f);
+
+ if (ferror(f) || rename(temp_path, u->state_file) < 0) {
+ r = -errno;
+ unlink(u->state_file);
+ unlink(temp_path);
+ }
+
+ fclose(f);
+ free(temp_path);
+
+finish:
+ if (r < 0)
+ log_error("Failed to save user data for %s: %s", u->name, strerror(-r));
+
+ return r;
+}
+
+int user_load(User *u) {
+ int r;
+ char *display = NULL;
+ Session *s = NULL;
+
+ assert(u);
+
+ r = parse_env_file(u->state_file, NEWLINE,
+ "CGROUP", &u->cgroup_path,
+ "RUNTIME", &u->runtime_path,
+ "SERVICE", &u->service,
+ "DISPLAY", &display,
+ NULL);
+ if (r < 0) {
+ free(display);
+
+ if (r == -ENOENT)
+ return 0;
+
+ log_error("Failed to read %s: %s", u->state_file, strerror(-r));
+ return r;
+ }
+
+ if (display) {
+ s = hashmap_get(u->manager->sessions, display);
+ free(display);
+ }
+
+ if (s && s->display && display_is_local(s->display))
+ u->display = s;
+
+ return r;
+}
+
+static int user_mkdir_runtime_path(User *u) {
+ char *p;
+ int r;
+
+ assert(u);
+
+ r = safe_mkdir("/run/user", 0755, 0, 0);
+ if (r < 0) {
+ log_error("Failed to create /run/user: %s", strerror(-r));
+ return r;
+ }
+
+ if (!u->runtime_path) {
+ p = strappend("/run/user/", u->name);
+
+ if (!p) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+ } else
+ p = u->runtime_path;
+
+ r = safe_mkdir(p, 0700, u->uid, u->gid);
+ if (r < 0) {
+ log_error("Failed to create runtime directory %s: %s", p, strerror(-r));
+ free(p);
+ u->runtime_path = NULL;
+ return r;
+ }
+
+ u->runtime_path = p;
+ return 0;
+}
+
+static int user_create_cgroup(User *u) {
+ char **k;
+ char *p;
+ int r;
+
+ assert(u);
+
+ if (!u->cgroup_path) {
+ if (asprintf(&p, "%s/%s", u->manager->cgroup_path, u->name) < 0) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+ } else
+ p = u->cgroup_path;
+
+ r = cg_create(SYSTEMD_CGROUP_CONTROLLER, p);
+ if (r < 0) {
+ log_error("Failed to create cgroup "SYSTEMD_CGROUP_CONTROLLER":%s: %s", p, strerror(-r));
+ free(p);
+ u->cgroup_path = NULL;
+ return r;
+ }
+
+ u->cgroup_path = p;
+
+ STRV_FOREACH(k, u->manager->controllers) {
+
+ if (strv_contains(u->manager->reset_controllers, *k))
+ continue;
+
+ r = cg_create(*k, p);
+ if (r < 0)
+ log_warning("Failed to create cgroup %s:%s: %s", *k, p, strerror(-r));
+ }
+
+ return 0;
+}
+
+static int user_start_service(User *u) {
+ assert(u);
+
+ return 0;
+}
+
+int user_start(User *u) {
+ int r;
+
+ assert(u);
+
+ if (u->started)
+ return 0;
+
+ log_info("New user %s logged in.", u->name);
+
+ /* Make XDG_RUNTIME_DIR */
+ r = user_mkdir_runtime_path(u);
+ if (r < 0)
+ return r;
+
+ /* Create cgroup */
+ r = user_create_cgroup(u);
+ if (r < 0)
+ return r;
+
+ /* Spawn user systemd */
+ r = user_start_service(u);
+ if (r < 0)
+ return r;
+
+ dual_timestamp_get(&u->timestamp);
+
+ u->started = true;
+
+ /* Save new user data */
+ user_save(u);
+
+ user_send_signal(u, true);
+
+ return 0;
+}
+
+static int user_stop_service(User *u) {
+ assert(u);
+
+ if (!u->service)
+ return 0;
+
+ return 0;
+}
+
+static int user_shall_kill(User *u) {
+ assert(u);
+
+ if (!u->manager->kill_user_processes)
+ return false;
+
+ if (strv_contains(u->manager->kill_exclude_users, u->name))
+ return false;
+
+ if (strv_isempty(u->manager->kill_only_users))
+ return true;
+
+ return strv_contains(u->manager->kill_only_users, u->name);
+}
+
+static int user_terminate_cgroup(User *u) {
+ int r;
+ char **k;
+
+ assert(u);
+
+ if (!u->cgroup_path)
+ return 0;
+
+ cg_trim(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, false);
+
+ if (user_shall_kill(u)) {
+
+ r = cg_kill_recursive_and_wait(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, true);
+ if (r < 0)
+ log_error("Failed to kill user cgroup: %s", strerror(-r));
+ } else {
+
+ r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, true);
+ if (r < 0)
+ log_error("Failed to check user cgroup: %s", strerror(-r));
+ else if (r > 0) {
+ r = cg_delete(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path);
+ if (r < 0)
+ log_error("Failed to delete user cgroup: %s", strerror(-r));
+ } else
+ r = -EBUSY;
+ }
+
+ STRV_FOREACH(k, u->manager->controllers)
+ cg_trim(*k, u->cgroup_path, true);
+
+ free(u->cgroup_path);
+ u->cgroup_path = NULL;
+
+ return r;
+}
+
+static int user_remove_runtime_path(User *u) {
+ int r;
+
+ assert(u);
+
+ if (!u->runtime_path)
+ return 0;
+
+ r = rm_rf(u->runtime_path, false, true, false);
+ if (r < 0)
+ log_error("Failed to remove runtime directory %s: %s", u->runtime_path, strerror(-r));
+
+ free(u->runtime_path);
+ u->runtime_path = NULL;
+
+ return r;
+}
+
+int user_stop(User *u) {
+ Session *s;
+ int r = 0, k;
+ assert(u);
+
+ if (u->started)
+ log_info("User %s logged out.", u->name);
+
+ LIST_FOREACH(sessions_by_user, s, u->sessions) {
+ k = session_stop(s);
+ if (k < 0)
+ r = k;
+ }
+
+ /* Kill systemd */
+ k = user_stop_service(u);
+ if (k < 0)
+ r = k;
+
+ /* Kill cgroup */
+ k = user_terminate_cgroup(u);
+ if (k < 0)
+ r = k;
+
+ /* Kill XDG_RUNTIME_DIR */
+ k = user_remove_runtime_path(u);
+ if (k < 0)
+ r = k;
+
+ unlink(u->state_file);
+ user_add_to_gc_queue(u);
+
+ if (u->started)
+ user_send_signal(u, false);
+
+ u->started = false;
+
+ return r;
+}
+
+int user_get_idle_hint(User *u, dual_timestamp *t) {
+ Session *s;
+ bool idle_hint = true;
+ dual_timestamp ts = { 0, 0 };
+
+ assert(u);
+
+ LIST_FOREACH(sessions_by_user, s, u->sessions) {
+ dual_timestamp k;
+ int ih;
+
+ ih = session_get_idle_hint(s, &k);
+ if (ih < 0)
+ return ih;
+
+ if (!ih) {
+ if (!idle_hint) {
+ if (k.monotonic < ts.monotonic)
+ ts = k;
+ } else {
+ idle_hint = false;
+ ts = k;
+ }
+ } else if (idle_hint) {
+
+ if (k.monotonic > ts.monotonic)
+ ts = k;
+ }
+ }
+
+ if (t)
+ *t = ts;
+
+ return idle_hint;
+}
+
+int user_check_gc(User *u, bool drop_not_started) {
+ int r;
+ char *p;
+
+ assert(u);
+
+ if (drop_not_started && !u->started)
+ return 0;
+
+ if (u->sessions)
+ return 1;
+
+ if (asprintf(&p, "/var/lib/systemd/linger/%s", u->name) < 0)
+ return -ENOMEM;
+
+ r = access(p, F_OK) >= 0;
+ free(p);
+
+ if (r > 0)
+ return 1;
+
+ if (u->cgroup_path) {
+ r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, false);
+ if (r < 0)
+ return r;
+
+ if (r <= 0)
+ return 1;
+ }
+
+ return 0;
+}
+
+void user_add_to_gc_queue(User *u) {
+ assert(u);
+
+ if (u->in_gc_queue)
+ return;
+
+ LIST_PREPEND(User, gc_queue, u->manager->user_gc_queue, u);
+ u->in_gc_queue = true;
+}
+
+UserState user_get_state(User *u) {
+ Session *i;
+
+ assert(u);
+
+ if (!u->sessions)
+ return USER_LINGERING;
+
+ LIST_FOREACH(sessions_by_user, i, u->sessions)
+ if (session_is_active(i))
+ return USER_ACTIVE;
+
+ return USER_ONLINE;
+}
+
+int user_kill(User *u, int signo) {
+ int r = 0, q;
+ Set *pid_set = NULL;
+
+ assert(u);
+
+ if (!u->cgroup_path)
+ return -ESRCH;
+
+ pid_set = set_new(trivial_hash_func, trivial_compare_func);
+ if (!pid_set)
+ return -ENOMEM;
+
+ q = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, signo, false, true, false, pid_set);
+ if (q < 0)
+ if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
+ r = q;
+
+ if (pid_set)
+ set_free(pid_set);
+
+ return r;
+}
+
+static const char* const user_state_table[_USER_STATE_MAX] = {
+ [USER_OFFLINE] = "offline",
+ [USER_LINGERING] = "lingering",
+ [USER_ONLINE] = "online",
+ [USER_ACTIVE] = "active"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(user_state, UserState);
diff --git a/src/login/logind-user.h b/src/login/logind-user.h
new file mode 100644
index 0000000000..db9a5f6a34
--- /dev/null
+++ b/src/login/logind-user.h
@@ -0,0 +1,86 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foologinduserhfoo
+#define foologinduserhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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/>.
+***/
+
+typedef struct User User;
+
+#include "list.h"
+#include "util.h"
+#include "logind.h"
+#include "logind-session.h"
+
+typedef enum UserState {
+ USER_OFFLINE,
+ USER_LINGERING,
+ USER_ONLINE,
+ USER_ACTIVE,
+ _USER_STATE_MAX,
+ _USER_STATE_INVALID = -1
+} UserState;
+
+struct User {
+ Manager *manager;
+
+ uid_t uid;
+ gid_t gid;
+ char *name;
+
+ char *state_file;
+ char *runtime_path;
+ char *service;
+ char *cgroup_path;
+
+ Session *display;
+
+ dual_timestamp timestamp;
+
+ bool in_gc_queue:1;
+ bool started:1;
+
+ LIST_HEAD(Session, sessions);
+ LIST_FIELDS(User, gc_queue);
+};
+
+User* user_new(Manager *m, uid_t uid, gid_t gid, const char *name);
+void user_free(User *u);
+int user_check_gc(User *u, bool drop_not_started);
+void user_add_to_gc_queue(User *u);
+int user_start(User *u);
+int user_stop(User *u);
+UserState user_get_state(User *u);
+int user_get_idle_hint(User *u, dual_timestamp *t);
+int user_save(User *u);
+int user_load(User *u);
+int user_kill(User *u, int signo);
+
+char *user_bus_path(User *s);
+
+extern const DBusObjectPathVTable bus_user_vtable;
+
+int user_send_signal(User *u, bool new_user);
+int user_send_changed(User *u, const char *properties);
+
+const char* user_state_to_string(UserState s);
+UserState user_state_from_string(const char *s);
+
+#endif
diff --git a/src/login/logind.c b/src/login/logind.c
new file mode 100644
index 0000000000..4633a5ef29
--- /dev/null
+++ b/src/login/logind.c
@@ -0,0 +1,1228 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <pwd.h>
+#include <libudev.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <linux/vt.h>
+
+#include "logind.h"
+#include "dbus-common.h"
+#include "dbus-loop.h"
+#include "strv.h"
+#include "conf-parser.h"
+
+Manager *manager_new(void) {
+ Manager *m;
+
+ m = new0(Manager, 1);
+ if (!m)
+ return NULL;
+
+ m->console_active_fd = -1;
+ m->bus_fd = -1;
+ m->udev_seat_fd = -1;
+ m->udev_vcsa_fd = -1;
+ m->epoll_fd = -1;
+ m->n_autovts = 6;
+
+ m->devices = hashmap_new(string_hash_func, string_compare_func);
+ m->seats = hashmap_new(string_hash_func, string_compare_func);
+ m->sessions = hashmap_new(string_hash_func, string_compare_func);
+ m->users = hashmap_new(trivial_hash_func, trivial_compare_func);
+ m->cgroups = hashmap_new(string_hash_func, string_compare_func);
+ m->fifo_fds = hashmap_new(trivial_hash_func, trivial_compare_func);
+
+ if (!m->devices || !m->seats || !m->sessions || !m->users || !m->cgroups || !m->fifo_fds) {
+ manager_free(m);
+ return NULL;
+ }
+
+ m->reset_controllers = strv_new("cpu", NULL);
+ m->kill_exclude_users = strv_new("root", NULL);
+ if (!m->reset_controllers || !m->kill_exclude_users) {
+ manager_free(m);
+ return NULL;
+ }
+
+ m->udev = udev_new();
+ if (!m->udev) {
+ manager_free(m);
+ return NULL;
+ }
+
+ if (cg_get_user_path(&m->cgroup_path) < 0) {
+ manager_free(m);
+ return NULL;
+ }
+
+ return m;
+}
+
+void manager_free(Manager *m) {
+ Session *session;
+ User *u;
+ Device *d;
+ Seat *s;
+
+ assert(m);
+
+ while ((session = hashmap_first(m->sessions)))
+ session_free(session);
+
+ while ((u = hashmap_first(m->users)))
+ user_free(u);
+
+ while ((d = hashmap_first(m->devices)))
+ device_free(d);
+
+ while ((s = hashmap_first(m->seats)))
+ seat_free(s);
+
+ hashmap_free(m->sessions);
+ hashmap_free(m->users);
+ hashmap_free(m->devices);
+ hashmap_free(m->seats);
+ hashmap_free(m->cgroups);
+ hashmap_free(m->fifo_fds);
+
+ if (m->console_active_fd >= 0)
+ close_nointr_nofail(m->console_active_fd);
+
+ if (m->udev_seat_monitor)
+ udev_monitor_unref(m->udev_seat_monitor);
+
+ if (m->udev_vcsa_monitor)
+ udev_monitor_unref(m->udev_vcsa_monitor);
+
+ if (m->udev)
+ udev_unref(m->udev);
+
+ if (m->bus) {
+ dbus_connection_flush(m->bus);
+ dbus_connection_close(m->bus);
+ dbus_connection_unref(m->bus);
+ }
+
+ if (m->bus_fd >= 0)
+ close_nointr_nofail(m->bus_fd);
+
+ if (m->epoll_fd >= 0)
+ close_nointr_nofail(m->epoll_fd);
+
+ strv_free(m->controllers);
+ strv_free(m->reset_controllers);
+ strv_free(m->kill_only_users);
+ strv_free(m->kill_exclude_users);
+
+ free(m->cgroup_path);
+ free(m);
+}
+
+int manager_add_device(Manager *m, const char *sysfs, Device **_device) {
+ Device *d;
+
+ assert(m);
+ assert(sysfs);
+
+ d = hashmap_get(m->devices, sysfs);
+ if (d) {
+ if (_device)
+ *_device = d;
+
+ return 0;
+ }
+
+ d = device_new(m, sysfs);
+ if (!d)
+ return -ENOMEM;
+
+ if (_device)
+ *_device = d;
+
+ return 0;
+}
+
+int manager_add_seat(Manager *m, const char *id, Seat **_seat) {
+ Seat *s;
+
+ assert(m);
+ assert(id);
+
+ s = hashmap_get(m->seats, id);
+ if (s) {
+ if (_seat)
+ *_seat = s;
+
+ return 0;
+ }
+
+ s = seat_new(m, id);
+ if (!s)
+ return -ENOMEM;
+
+ if (_seat)
+ *_seat = s;
+
+ return 0;
+}
+
+int manager_add_session(Manager *m, User *u, const char *id, Session **_session) {
+ Session *s;
+
+ assert(m);
+ assert(id);
+
+ s = hashmap_get(m->sessions, id);
+ if (s) {
+ if (_session)
+ *_session = s;
+
+ return 0;
+ }
+
+ s = session_new(m, u, id);
+ if (!s)
+ return -ENOMEM;
+
+ if (_session)
+ *_session = s;
+
+ return 0;
+}
+
+int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user) {
+ User *u;
+
+ assert(m);
+ assert(name);
+
+ u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+ if (u) {
+ if (_user)
+ *_user = u;
+
+ return 0;
+ }
+
+ u = user_new(m, uid, gid, name);
+ if (!u)
+ return -ENOMEM;
+
+ if (_user)
+ *_user = u;
+
+ return 0;
+}
+
+int manager_add_user_by_name(Manager *m, const char *name, User **_user) {
+ uid_t uid;
+ gid_t gid;
+ int r;
+
+ assert(m);
+ assert(name);
+
+ r = get_user_creds(&name, &uid, &gid, NULL);
+ if (r < 0)
+ return r;
+
+ return manager_add_user(m, uid, gid, name, _user);
+}
+
+int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user) {
+ struct passwd *p;
+
+ assert(m);
+
+ errno = 0;
+ p = getpwuid(uid);
+ if (!p)
+ return errno ? -errno : -ENOENT;
+
+ return manager_add_user(m, uid, p->pw_gid, p->pw_name, _user);
+}
+
+int manager_process_seat_device(Manager *m, struct udev_device *d) {
+ Device *device;
+ int r;
+
+ assert(m);
+
+ if (streq_ptr(udev_device_get_action(d), "remove")) {
+
+ device = hashmap_get(m->devices, udev_device_get_syspath(d));
+ if (!device)
+ return 0;
+
+ seat_add_to_gc_queue(device->seat);
+ device_free(device);
+
+ } else {
+ const char *sn;
+ Seat *seat;
+
+ sn = udev_device_get_property_value(d, "ID_SEAT");
+ if (isempty(sn))
+ sn = "seat0";
+
+ if (!seat_name_is_valid(sn)) {
+ log_warning("Device with invalid seat name %s found, ignoring.", sn);
+ return 0;
+ }
+
+ r = manager_add_device(m, udev_device_get_syspath(d), &device);
+ if (r < 0)
+ return r;
+
+ r = manager_add_seat(m, sn, &seat);
+ if (r < 0) {
+ if (!device->seat)
+ device_free(device);
+
+ return r;
+ }
+
+ device_attach(device, seat);
+ seat_start(seat);
+ }
+
+ return 0;
+}
+
+int manager_enumerate_devices(Manager *m) {
+ struct udev_list_entry *item = NULL, *first = NULL;
+ struct udev_enumerate *e;
+ int r;
+
+ assert(m);
+
+ /* Loads devices from udev and creates seats for them as
+ * necessary */
+
+ e = udev_enumerate_new(m->udev);
+ if (!e) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ r = udev_enumerate_add_match_subsystem(e, "graphics");
+ if (r < 0)
+ goto finish;
+
+ r = udev_enumerate_add_match_tag(e, "seat");
+ if (r < 0)
+ goto finish;
+
+ r = udev_enumerate_scan_devices(e);
+ if (r < 0)
+ goto finish;
+
+ first = udev_enumerate_get_list_entry(e);
+ udev_list_entry_foreach(item, first) {
+ struct udev_device *d;
+ int k;
+
+ d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item));
+ if (!d) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ k = manager_process_seat_device(m, d);
+ udev_device_unref(d);
+
+ if (k < 0)
+ r = k;
+ }
+
+finish:
+ if (e)
+ udev_enumerate_unref(e);
+
+ return r;
+}
+
+int manager_enumerate_seats(Manager *m) {
+ DIR *d;
+ struct dirent *de;
+ int r = 0;
+
+ assert(m);
+
+ /* This loads data about seats stored on disk, but does not
+ * actually create any seats. Removes data of seats that no
+ * longer exist. */
+
+ d = opendir("/run/systemd/seats");
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open /run/systemd/seats: %m");
+ return -errno;
+ }
+
+ while ((de = readdir(d))) {
+ Seat *s;
+ int k;
+
+ if (!dirent_is_file(de))
+ continue;
+
+ s = hashmap_get(m->seats, de->d_name);
+ if (!s) {
+ unlinkat(dirfd(d), de->d_name, 0);
+ continue;
+ }
+
+ k = seat_load(s);
+ if (k < 0)
+ r = k;
+ }
+
+ closedir(d);
+
+ return r;
+}
+
+static int manager_enumerate_users_from_cgroup(Manager *m) {
+ int r = 0;
+ char *name;
+ DIR *d;
+ int k;
+
+ r = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_path, &d);
+ if (r < 0) {
+ if (r == -ENOENT)
+ return 0;
+
+ log_error("Failed to open %s: %s", m->cgroup_path, strerror(-r));
+ return r;
+ }
+
+ while ((k = cg_read_subgroup(d, &name)) > 0) {
+ User *user;
+
+ k = manager_add_user_by_name(m, name, &user);
+ if (k < 0) {
+ free(name);
+ r = k;
+ continue;
+ }
+
+ user_add_to_gc_queue(user);
+
+ if (!user->cgroup_path)
+ if (asprintf(&user->cgroup_path, "%s/%s", m->cgroup_path, name) < 0) {
+ r = -ENOMEM;
+ free(name);
+ break;
+ }
+
+ free(name);
+ }
+
+ if (r >= 0 && k < 0)
+ r = k;
+
+ closedir(d);
+
+ return r;
+}
+
+static int manager_enumerate_linger_users(Manager *m) {
+ DIR *d;
+ struct dirent *de;
+ int r = 0;
+
+ d = opendir("/var/lib/systemd/linger");
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open /var/lib/systemd/linger/: %m");
+ return -errno;
+ }
+
+ while ((de = readdir(d))) {
+ int k;
+
+ if (!dirent_is_file(de))
+ continue;
+
+ k = manager_add_user_by_name(m, de->d_name, NULL);
+ if (k < 0) {
+ log_notice("Couldn't add lingering user %s: %s", de->d_name, strerror(-k));
+ r = k;
+ }
+ }
+
+ closedir(d);
+
+ return r;
+}
+
+int manager_enumerate_users(Manager *m) {
+ DIR *d;
+ struct dirent *de;
+ int r, k;
+
+ assert(m);
+
+ /* First, enumerate user cgroups */
+ r = manager_enumerate_users_from_cgroup(m);
+
+ /* Second, add lingering users on top */
+ k = manager_enumerate_linger_users(m);
+ if (k < 0)
+ r = k;
+
+ /* Third, read in user data stored on disk */
+ d = opendir("/run/systemd/users");
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open /run/systemd/users: %m");
+ return -errno;
+ }
+
+ while ((de = readdir(d))) {
+ uid_t uid;
+ User *u;
+
+ if (!dirent_is_file(de))
+ continue;
+
+ k = parse_uid(de->d_name, &uid);
+ if (k < 0) {
+ log_error("Failed to parse file name %s: %s", de->d_name, strerror(-k));
+ continue;
+ }
+
+ u = hashmap_get(m->users, ULONG_TO_PTR(uid));
+ if (!u) {
+ unlinkat(dirfd(d), de->d_name, 0);
+ continue;
+ }
+
+ k = user_load(u);
+ if (k < 0)
+ r = k;
+ }
+
+ closedir(d);
+
+ return r;
+}
+
+static int manager_enumerate_sessions_from_cgroup(Manager *m) {
+ User *u;
+ Iterator i;
+ int r = 0;
+
+ HASHMAP_FOREACH(u, m->users, i) {
+ DIR *d;
+ char *name;
+ int k;
+
+ if (!u->cgroup_path)
+ continue;
+
+ k = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, &d);
+ if (k < 0) {
+ if (k == -ENOENT)
+ continue;
+
+ log_error("Failed to open %s: %s", u->cgroup_path, strerror(-k));
+ r = k;
+ continue;
+ }
+
+ while ((k = cg_read_subgroup(d, &name)) > 0) {
+ Session *session;
+
+ if (streq(name, "shared"))
+ continue;
+
+ k = manager_add_session(m, u, name, &session);
+ if (k < 0) {
+ free(name);
+ break;
+ }
+
+ session_add_to_gc_queue(session);
+
+ if (!session->cgroup_path)
+ if (asprintf(&session->cgroup_path, "%s/%s", u->cgroup_path, name) < 0) {
+ k = -ENOMEM;
+ free(name);
+ break;
+ }
+
+ free(name);
+ }
+
+ closedir(d);
+
+ if (k < 0)
+ r = k;
+ }
+
+ return r;
+}
+
+int manager_enumerate_sessions(Manager *m) {
+ DIR *d;
+ struct dirent *de;
+ int r = 0;
+
+ assert(m);
+
+ /* First enumerate session cgroups */
+ r = manager_enumerate_sessions_from_cgroup(m);
+
+ /* Second, read in session data stored on disk */
+ d = opendir("/run/systemd/sessions");
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open /run/systemd/sessions: %m");
+ return -errno;
+ }
+
+ while ((de = readdir(d))) {
+ struct Session *s;
+ int k;
+
+ if (!dirent_is_file(de))
+ continue;
+
+ s = hashmap_get(m->sessions, de->d_name);
+ if (!s) {
+ unlinkat(dirfd(d), de->d_name, 0);
+ continue;
+ }
+
+ k = session_load(s);
+ if (k < 0)
+ r = k;
+ }
+
+ closedir(d);
+
+ return r;
+}
+
+int manager_dispatch_seat_udev(Manager *m) {
+ struct udev_device *d;
+ int r;
+
+ assert(m);
+
+ d = udev_monitor_receive_device(m->udev_seat_monitor);
+ if (!d)
+ return -ENOMEM;
+
+ r = manager_process_seat_device(m, d);
+ udev_device_unref(d);
+
+ return r;
+}
+
+
+int manager_dispatch_vcsa_udev(Manager *m) {
+ struct udev_device *d;
+ int r = 0;
+ const char *name;
+
+ assert(m);
+
+ d = udev_monitor_receive_device(m->udev_vcsa_monitor);
+ if (!d)
+ return -ENOMEM;
+
+ name = udev_device_get_sysname(d);
+
+ /* Whenever a VCSA device is removed try to reallocate our
+ * VTs, to make sure our auto VTs never go away. */
+
+ if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove"))
+ r = seat_preallocate_vts(m->vtconsole);
+
+ udev_device_unref(d);
+
+ return r;
+}
+
+int manager_dispatch_console(Manager *m) {
+ assert(m);
+
+ if (m->vtconsole)
+ seat_read_active_vt(m->vtconsole);
+
+ return 0;
+}
+
+static int vt_is_busy(int vtnr) {
+ struct vt_stat vt_stat;
+ int r = 0, fd;
+
+ assert(vtnr >= 1);
+
+ /* We explicitly open /dev/tty1 here instead of /dev/tty0. If
+ * we'd open the latter we'd open the foreground tty which
+ * hence would be unconditionally busy. By opening /dev/tty1
+ * we avoid this. Since tty1 is special and needs to be an
+ * explicitly loaded getty or DM this is safe. */
+
+ fd = open_terminal("/dev/tty1", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ return -errno;
+
+ if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0)
+ r = -errno;
+ else
+ r = !!(vt_stat.v_state & (1 << vtnr));
+
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+int manager_spawn_autovt(Manager *m, int vtnr) {
+ int r;
+ DBusMessage *message = NULL, *reply = NULL;
+ char *name = NULL;
+ const char *mode = "fail";
+ DBusError error;
+
+ assert(m);
+ assert(vtnr >= 1);
+
+ dbus_error_init(&error);
+
+ if ((unsigned) vtnr > m->n_autovts)
+ return 0;
+
+ r = vt_is_busy(vtnr);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ return -EBUSY;
+
+ message = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "StartUnit");
+ if (!message) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (asprintf(&name, "autovt@tty%i.service", vtnr) < 0) {
+ log_error("Could not allocate service name.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(message,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &mode,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not attach target and flag information to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(m->bus, message, -1, &error);
+ if (!reply) {
+ log_error("Failed to start unit: %s", bus_error_message(&error));
+ goto finish;
+ }
+
+ r = 0;
+
+finish:
+ free(name);
+
+ if (message)
+ dbus_message_unref(message);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+void manager_cgroup_notify_empty(Manager *m, const char *cgroup) {
+ Session *s;
+ char *p;
+
+ assert(m);
+ assert(cgroup);
+
+ p = strdup(cgroup);
+ if (!p) {
+ log_error("Out of memory.");
+ return;
+ }
+
+ for (;;) {
+ char *e;
+
+ if (isempty(p) || streq(p, "/"))
+ break;
+
+ s = hashmap_get(m->cgroups, p);
+ if (s)
+ session_add_to_gc_queue(s);
+
+ assert_se(e = strrchr(p, '/'));
+ *e = 0;
+ }
+
+ free(p);
+}
+
+static void manager_pipe_notify_eof(Manager *m, int fd) {
+ Session *s;
+
+ assert_se(m);
+ assert_se(fd >= 0);
+
+ assert_se(s = hashmap_get(m->fifo_fds, INT_TO_PTR(fd + 1)));
+ assert(s->fifo_fd == fd);
+ session_remove_fifo(s);
+
+ session_stop(s);
+}
+
+static int manager_connect_bus(Manager *m) {
+ DBusError error;
+ int r;
+ struct epoll_event ev;
+
+ assert(m);
+ assert(!m->bus);
+ assert(m->bus_fd < 0);
+
+ dbus_error_init(&error);
+
+ m->bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
+ if (!m->bus) {
+ log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
+ r = -ECONNREFUSED;
+ goto fail;
+ }
+
+ if (!dbus_connection_register_object_path(m->bus, "/org/freedesktop/login1", &bus_manager_vtable, m) ||
+ !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/seat", &bus_seat_vtable, m) ||
+ !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/session", &bus_session_vtable, m) ||
+ !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/user", &bus_user_vtable, m) ||
+ !dbus_connection_add_filter(m->bus, bus_message_filter, m, NULL)) {
+ log_error("Not enough memory");
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ dbus_bus_add_match(m->bus,
+ "type='signal',"
+ "interface='org.freedesktop.systemd1.Agent',"
+ "member='Released',"
+ "path='/org/freedesktop/systemd1/agent'",
+ &error);
+
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to register match: %s", bus_error_message(&error));
+ r = -EIO;
+ goto fail;
+ }
+
+ r = dbus_bus_request_name(m->bus, "org.freedesktop.login1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to register name on bus: %s", bus_error_message(&error));
+ r = -EIO;
+ goto fail;
+ }
+
+ if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
+ log_error("Failed to acquire name.");
+ r = -EEXIST;
+ goto fail;
+ }
+
+ m->bus_fd = bus_loop_open(m->bus);
+ if (m->bus_fd < 0) {
+ r = m->bus_fd;
+ goto fail;
+ }
+
+ zero(ev);
+ ev.events = EPOLLIN;
+ ev.data.u32 = FD_BUS;
+
+ if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->bus_fd, &ev) < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int manager_connect_console(Manager *m) {
+ struct epoll_event ev;
+
+ assert(m);
+ assert(m->console_active_fd < 0);
+
+ m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (m->console_active_fd < 0) {
+ log_error("Failed to open /sys/class/tty/tty0/active: %m");
+ return -errno;
+ }
+
+ zero(ev);
+ ev.events = 0;
+ ev.data.u32 = FD_CONSOLE;
+
+ if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->console_active_fd, &ev) < 0)
+ return -errno;
+
+ return 0;
+}
+
+static int manager_connect_udev(Manager *m) {
+ struct epoll_event ev;
+ int r;
+
+ assert(m);
+ assert(!m->udev_seat_monitor);
+ assert(!m->udev_vcsa_monitor);
+
+ m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
+ if (!m->udev_seat_monitor)
+ return -ENOMEM;
+
+ r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "seat");
+ if (r < 0)
+ return r;
+
+ r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_seat_monitor, "graphics", NULL);
+ if (r < 0)
+ return r;
+
+ r = udev_monitor_enable_receiving(m->udev_seat_monitor);
+ if (r < 0)
+ return r;
+
+ m->udev_seat_fd = udev_monitor_get_fd(m->udev_seat_monitor);
+
+ zero(ev);
+ ev.events = EPOLLIN;
+ ev.data.u32 = FD_SEAT_UDEV;
+
+ if (m->n_autovts <= 0)
+ return 0;
+
+ if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_seat_fd, &ev) < 0)
+ return -errno;
+
+ m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
+ if (!m->udev_vcsa_monitor)
+ return -ENOMEM;
+
+ r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL);
+ if (r < 0)
+ return r;
+
+ r = udev_monitor_enable_receiving(m->udev_vcsa_monitor);
+ if (r < 0)
+ return r;
+
+ m->udev_vcsa_fd = udev_monitor_get_fd(m->udev_vcsa_monitor);
+
+ zero(ev);
+ ev.events = EPOLLIN;
+ ev.data.u32 = FD_VCSA_UDEV;
+
+ if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_vcsa_fd, &ev) < 0)
+ return -errno;
+
+ return 0;
+}
+
+void manager_gc(Manager *m, bool drop_not_started) {
+ Seat *seat;
+ Session *session;
+ User *user;
+
+ assert(m);
+
+ while ((seat = m->seat_gc_queue)) {
+ LIST_REMOVE(Seat, gc_queue, m->seat_gc_queue, seat);
+ seat->in_gc_queue = false;
+
+ if (seat_check_gc(seat, drop_not_started) == 0) {
+ seat_stop(seat);
+ seat_free(seat);
+ }
+ }
+
+ while ((session = m->session_gc_queue)) {
+ LIST_REMOVE(Session, gc_queue, m->session_gc_queue, session);
+ session->in_gc_queue = false;
+
+ if (session_check_gc(session, drop_not_started) == 0) {
+ session_stop(session);
+ session_free(session);
+ }
+ }
+
+ while ((user = m->user_gc_queue)) {
+ LIST_REMOVE(User, gc_queue, m->user_gc_queue, user);
+ user->in_gc_queue = false;
+
+ if (user_check_gc(user, drop_not_started) == 0) {
+ user_stop(user);
+ user_free(user);
+ }
+ }
+}
+
+int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
+ Session *s;
+ bool idle_hint = true;
+ dual_timestamp ts = { 0, 0 };
+ Iterator i;
+
+ assert(m);
+
+ HASHMAP_FOREACH(s, m->sessions, i) {
+ dual_timestamp k;
+ int ih;
+
+ ih = session_get_idle_hint(s, &k);
+ if (ih < 0)
+ return ih;
+
+ if (!ih) {
+ if (!idle_hint) {
+ if (k.monotonic < ts.monotonic)
+ ts = k;
+ } else {
+ idle_hint = false;
+ ts = k;
+ }
+ } else if (idle_hint) {
+
+ if (k.monotonic > ts.monotonic)
+ ts = k;
+ }
+ }
+
+ if (t)
+ *t = ts;
+
+ return idle_hint;
+}
+
+int manager_startup(Manager *m) {
+ int r;
+ Seat *seat;
+ Session *session;
+ User *user;
+ Iterator i;
+
+ assert(m);
+ assert(m->epoll_fd <= 0);
+
+ m->epoll_fd = epoll_create1(EPOLL_CLOEXEC);
+ if (m->epoll_fd < 0)
+ return -errno;
+
+ /* Connect to udev */
+ r = manager_connect_udev(m);
+ if (r < 0)
+ return r;
+
+ /* Connect to console */
+ r = manager_connect_console(m);
+ if (r < 0)
+ return r;
+
+ /* Connect to the bus */
+ r = manager_connect_bus(m);
+ if (r < 0)
+ return r;
+
+ /* Instantiate magic seat 0 */
+ r = manager_add_seat(m, "seat0", &m->vtconsole);
+ if (r < 0)
+ return r;
+
+ /* Deserialize state */
+ manager_enumerate_devices(m);
+ manager_enumerate_seats(m);
+ manager_enumerate_users(m);
+ manager_enumerate_sessions(m);
+
+ /* Remove stale objects before we start them */
+ manager_gc(m, false);
+
+ /* And start everything */
+ HASHMAP_FOREACH(seat, m->seats, i)
+ seat_start(seat);
+
+ HASHMAP_FOREACH(user, m->users, i)
+ user_start(user);
+
+ HASHMAP_FOREACH(session, m->sessions, i)
+ session_start(session);
+
+ return 0;
+}
+
+int manager_run(Manager *m) {
+ assert(m);
+
+ for (;;) {
+ struct epoll_event event;
+ int n;
+
+ manager_gc(m, true);
+
+ if (dbus_connection_dispatch(m->bus) != DBUS_DISPATCH_COMPLETE)
+ continue;
+
+ manager_gc(m, true);
+
+ n = epoll_wait(m->epoll_fd, &event, 1, -1);
+ if (n < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+
+ log_error("epoll() failed: %m");
+ return -errno;
+ }
+
+ switch (event.data.u32) {
+
+ case FD_SEAT_UDEV:
+ manager_dispatch_seat_udev(m);
+ break;
+
+ case FD_VCSA_UDEV:
+ manager_dispatch_vcsa_udev(m);
+ break;
+
+ case FD_CONSOLE:
+ manager_dispatch_console(m);
+ break;
+
+ case FD_BUS:
+ bus_loop_dispatch(m->bus_fd);
+ break;
+
+ default:
+ if (event.data.u32 >= FD_FIFO_BASE)
+ manager_pipe_notify_eof(m, event.data.u32 - FD_FIFO_BASE);
+ }
+ }
+
+ return 0;
+}
+
+static int manager_parse_config_file(Manager *m) {
+ FILE *f;
+ const char *fn;
+ int r;
+
+ assert(m);
+
+ fn = "/etc/systemd/systemd-logind.conf";
+ f = fopen(fn, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_warning("Failed to open configuration file %s: %m", fn);
+ return -errno;
+ }
+
+ r = config_parse(fn, f, "Login\0", config_item_perf_lookup, (void*) logind_gperf_lookup, false, m);
+ if (r < 0)
+ log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+ fclose(f);
+
+ return r;
+}
+
+int main(int argc, char *argv[]) {
+ Manager *m = NULL;
+ int r;
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ if (argc != 1) {
+ log_error("This program takes no arguments.");
+ r = -EINVAL;
+ goto finish;
+ }
+
+ m = manager_new();
+ if (!m) {
+ log_error("Out of memory");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ manager_parse_config_file(m);
+
+ r = manager_startup(m);
+ if (r < 0) {
+ log_error("Failed to fully start up daemon: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = manager_run(m);
+
+finish:
+ if (m)
+ manager_free(m);
+
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/src/login/logind.h b/src/login/logind.h
new file mode 100644
index 0000000000..fd668a2c19
--- /dev/null
+++ b/src/login/logind.h
@@ -0,0 +1,128 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foologindhfoo
+#define foologindhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <stdbool.h>
+#include <inttypes.h>
+#include <dbus/dbus.h>
+#include <libudev.h>
+
+#include "util.h"
+#include "list.h"
+#include "hashmap.h"
+#include "cgroup-util.h"
+
+typedef struct Manager Manager;
+
+#include "logind-device.h"
+#include "logind-seat.h"
+#include "logind-session.h"
+#include "logind-user.h"
+
+struct Manager {
+ DBusConnection *bus;
+
+ Hashmap *devices;
+ Hashmap *seats;
+ Hashmap *sessions;
+ Hashmap *users;
+
+ LIST_HEAD(Seat, seat_gc_queue);
+ LIST_HEAD(Session, session_gc_queue);
+ LIST_HEAD(User, user_gc_queue);
+
+ struct udev *udev;
+ struct udev_monitor *udev_seat_monitor, *udev_vcsa_monitor;
+
+ int udev_seat_fd;
+ int udev_vcsa_fd;
+
+ int console_active_fd;
+ int bus_fd;
+ int epoll_fd;
+
+ unsigned n_autovts;
+
+ Seat *vtconsole;
+
+ char *cgroup_path;
+ char **controllers, **reset_controllers;
+
+ char **kill_only_users, **kill_exclude_users;
+
+ bool kill_user_processes;
+
+ unsigned long session_counter;
+
+ Hashmap *cgroups;
+ Hashmap *fifo_fds;
+};
+
+enum {
+ FD_SEAT_UDEV,
+ FD_VCSA_UDEV,
+ FD_CONSOLE,
+ FD_BUS,
+ FD_FIFO_BASE
+};
+
+Manager *manager_new(void);
+void manager_free(Manager *m);
+
+int manager_add_device(Manager *m, const char *sysfs, Device **_device);
+int manager_add_seat(Manager *m, const char *id, Seat **_seat);
+int manager_add_session(Manager *m, User *u, const char *id, Session **_session);
+int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user);
+int manager_add_user_by_name(Manager *m, const char *name, User **_user);
+int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user);
+
+int manager_process_seat_device(Manager *m, struct udev_device *d);
+int manager_dispatch_seat_udev(Manager *m);
+int manager_dispatch_vcsa_udev(Manager *m);
+int manager_dispatch_console(Manager *m);
+
+int manager_enumerate_devices(Manager *m);
+int manager_enumerate_seats(Manager *m);
+int manager_enumerate_sessions(Manager *m);
+int manager_enumerate_users(Manager *m);
+
+int manager_startup(Manager *m);
+int manager_run(Manager *m);
+int manager_spawn_autovt(Manager *m, int vtnr);
+
+void manager_cgroup_notify_empty(Manager *m, const char *cgroup);
+
+void manager_gc(Manager *m, bool drop_not_started);
+
+int manager_get_idle_hint(Manager *m, dual_timestamp *t);
+
+extern const DBusObjectPathVTable bus_manager_vtable;
+
+DBusHandlerResult bus_message_filter(DBusConnection *c, DBusMessage *message, void *userdata);
+
+int manager_send_changed(Manager *manager, const char *properties);
+
+/* gperf lookup function */
+const struct ConfigPerfItem* logind_gperf_lookup(const char *key, unsigned length);
+
+#endif
diff --git a/src/login/sd-login.c b/src/login/sd-login.c
new file mode 100644
index 0000000000..a0a56c4952
--- /dev/null
+++ b/src/login/sd-login.c
@@ -0,0 +1,726 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/inotify.h>
+
+#include "util.h"
+#include "cgroup-util.h"
+#include "macro.h"
+#include "sd-login.h"
+#include "strv.h"
+
+static int pid_get_cgroup(pid_t pid, char **root, char **cgroup) {
+ char *cg_process, *cg_init, *p;
+ int r;
+
+ if (pid == 0)
+ pid = getpid();
+
+ if (pid <= 0)
+ return -EINVAL;
+
+ r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, pid, &cg_process);
+ if (r < 0)
+ return r;
+
+ r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 1, &cg_init);
+ if (r < 0) {
+ free(cg_process);
+ return r;
+ }
+
+ if (endswith(cg_init, "/system"))
+ cg_init[strlen(cg_init)-7] = 0;
+ else if (streq(cg_init, "/"))
+ cg_init[0] = 0;
+
+ if (startswith(cg_process, cg_init))
+ p = cg_process + strlen(cg_init);
+ else
+ p = cg_process;
+
+ free(cg_init);
+
+ if (cgroup) {
+ char* c;
+
+ c = strdup(p);
+ if (!c) {
+ free(cg_process);
+ return -ENOMEM;
+ }
+
+ *cgroup = c;
+ }
+
+ if (root) {
+ cg_process[p-cg_process] = 0;
+ *root = cg_process;
+ } else
+ free(cg_process);
+
+ return 0;
+}
+
+_public_ int sd_pid_get_session(pid_t pid, char **session) {
+ int r;
+ char *cgroup, *p;
+
+ if (!session)
+ return -EINVAL;
+
+ r = pid_get_cgroup(pid, NULL, &cgroup);
+ if (r < 0)
+ return r;
+
+ if (!startswith(cgroup, "/user/")) {
+ free(cgroup);
+ return -ENOENT;
+ }
+
+ p = strchr(cgroup + 6, '/');
+ if (!p) {
+ free(cgroup);
+ return -ENOENT;
+ }
+
+ p++;
+ if (startswith(p, "shared/") || streq(p, "shared")) {
+ free(cgroup);
+ return -ENOENT;
+ }
+
+ p = strndup(p, strcspn(p, "/"));
+ free(cgroup);
+
+ if (!p)
+ return -ENOMEM;
+
+ *session = p;
+ return 0;
+}
+
+_public_ int sd_pid_get_owner_uid(pid_t pid, uid_t *uid) {
+ int r;
+ char *root, *cgroup, *p, *cc;
+ struct stat st;
+
+ if (!uid)
+ return -EINVAL;
+
+ r = pid_get_cgroup(pid, &root, &cgroup);
+ if (r < 0)
+ return r;
+
+ if (!startswith(cgroup, "/user/")) {
+ free(cgroup);
+ free(root);
+ return -ENOENT;
+ }
+
+ p = strchr(cgroup + 6, '/');
+ if (!p) {
+ free(cgroup);
+ return -ENOENT;
+ }
+
+ p++;
+ p += strcspn(p, "/");
+ *p = 0;
+
+ r = cg_get_path(SYSTEMD_CGROUP_CONTROLLER, root, cgroup, &cc);
+ free(root);
+ free(cgroup);
+
+ if (r < 0)
+ return -ENOMEM;
+
+ r = lstat(cc, &st);
+ free(cc);
+
+ if (r < 0)
+ return -errno;
+
+ if (!S_ISDIR(st.st_mode))
+ return -ENOTDIR;
+
+ *uid = st.st_uid;
+ return 0;
+}
+
+_public_ int sd_uid_get_state(uid_t uid, char**state) {
+ char *p, *s = NULL;
+ int r;
+
+ if (!state)
+ return -EINVAL;
+
+ if (asprintf(&p, "/run/systemd/users/%lu", (unsigned long) uid) < 0)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, "STATE", &s, NULL);
+ free(p);
+
+ if (r == -ENOENT) {
+ free(s);
+ s = strdup("offline");
+ if (!s)
+ return -ENOMEM;
+
+ *state = s;
+ return 0;
+ } else if (r < 0) {
+ free(s);
+ return r;
+ } else if (!s)
+ return -EIO;
+
+ *state = s;
+ return 0;
+}
+
+_public_ int sd_uid_is_on_seat(uid_t uid, int require_active, const char *seat) {
+ char *p, *w, *t, *state, *s = NULL;
+ size_t l;
+ int r;
+ const char *variable;
+
+ if (!seat)
+ return -EINVAL;
+
+ variable = require_active ? "ACTIVE_UID" : "UIDS";
+
+ p = strappend("/run/systemd/seats/", seat);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, variable, &s, NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ return r;
+ }
+
+ if (!s)
+ return -EIO;
+
+ if (asprintf(&t, "%lu", (unsigned long) uid) < 0) {
+ free(s);
+ return -ENOMEM;
+ }
+
+ FOREACH_WORD(w, l, s, state) {
+ if (strncmp(t, w, l) == 0) {
+ free(s);
+ free(t);
+
+ return 1;
+ }
+ }
+
+ free(s);
+ free(t);
+
+ return 0;
+}
+
+static int uid_get_array(uid_t uid, const char *variable, char ***array) {
+ char *p, *s = NULL;
+ char **a;
+ int r;
+
+ if (asprintf(&p, "/run/systemd/users/%lu", (unsigned long) uid) < 0)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE,
+ variable, &s,
+ NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+
+ if (r == -ENOENT) {
+ if (array)
+ *array = NULL;
+ return 0;
+ }
+
+ return r;
+ }
+
+ if (!s) {
+ if (array)
+ *array = NULL;
+ return 0;
+ }
+
+ a = strv_split(s, " ");
+ free(s);
+
+ if (!a)
+ return -ENOMEM;
+
+ strv_uniq(a);
+ r = strv_length(a);
+
+ if (array)
+ *array = a;
+ else
+ strv_free(a);
+
+ return r;
+}
+
+_public_ int sd_uid_get_sessions(uid_t uid, int require_active, char ***sessions) {
+ return uid_get_array(uid, require_active ? "ACTIVE_SESSIONS" : "SESSIONS", sessions);
+}
+
+_public_ int sd_uid_get_seats(uid_t uid, int require_active, char ***seats) {
+ return uid_get_array(uid, require_active ? "ACTIVE_SEATS" : "SEATS", seats);
+}
+
+_public_ int sd_session_is_active(const char *session) {
+ int r;
+ char *p, *s = NULL;
+
+ if (!session)
+ return -EINVAL;
+
+ p = strappend("/run/systemd/sessions/", session);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, "ACTIVE", &s, NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ return r;
+ }
+
+ if (!s)
+ return -EIO;
+
+ r = parse_boolean(s);
+ free(s);
+
+ return r;
+}
+
+_public_ int sd_session_get_uid(const char *session, uid_t *uid) {
+ int r;
+ char *p, *s = NULL;
+
+ if (!session)
+ return -EINVAL;
+ if (!uid)
+ return -EINVAL;
+
+ p = strappend("/run/systemd/sessions/", session);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, "UID", &s, NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ return r;
+ }
+
+ if (!s)
+ return -EIO;
+
+ r = parse_uid(s, uid);
+ free(s);
+
+ return r;
+}
+
+_public_ int sd_session_get_seat(const char *session, char **seat) {
+ char *p, *s = NULL;
+ int r;
+
+ if (!session)
+ return -EINVAL;
+ if (!seat)
+ return -EINVAL;
+
+ p = strappend("/run/systemd/sessions/", session);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, "SEAT", &s, NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ return r;
+ }
+
+ if (isempty(s))
+ return -ENOENT;
+
+ *seat = s;
+ return 0;
+}
+
+_public_ int sd_seat_get_active(const char *seat, char **session, uid_t *uid) {
+ char *p, *s = NULL, *t = NULL;
+ int r;
+
+ if (!seat)
+ return -EINVAL;
+ if (!session && !uid)
+ return -EINVAL;
+
+ p = strappend("/run/systemd/seats/", seat);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE,
+ "ACTIVE", &s,
+ "ACTIVE_UID", &t,
+ NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ free(t);
+ return r;
+ }
+
+ if (session && !s) {
+ free(t);
+ return -ENOENT;
+ }
+
+ if (uid && !t) {
+ free(s);
+ return -ENOENT;
+ }
+
+ if (uid && t) {
+ r = parse_uid(t, uid);
+ if (r < 0) {
+ free(t);
+ free(s);
+ return r;
+ }
+ }
+
+ free(t);
+
+ if (session && s)
+ *session = s;
+ else
+ free(s);
+
+ return 0;
+}
+
+_public_ int sd_seat_get_sessions(const char *seat, char ***sessions, uid_t **uids, unsigned *n_uids) {
+ char *p, *s = NULL, *t = NULL, **a = NULL;
+ uid_t *b = NULL;
+ unsigned n = 0;
+ int r;
+
+ if (!seat)
+ return -EINVAL;
+
+ p = strappend("/run/systemd/seats/", seat);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE,
+ "SESSIONS", &s,
+ "ACTIVE_SESSIONS", &t,
+ NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ free(t);
+ return r;
+ }
+
+ if (s) {
+ a = strv_split(s, " ");
+ if (!a) {
+ free(s);
+ free(t);
+ return -ENOMEM;
+ }
+ }
+
+ free(s);
+
+ if (uids && t) {
+ char *w, *state;
+ size_t l;
+
+ FOREACH_WORD(w, l, t, state)
+ n++;
+
+ if (n == 0)
+ b = NULL;
+ else {
+ unsigned i = 0;
+
+ b = new(uid_t, n);
+ if (!b) {
+ strv_free(a);
+ return -ENOMEM;
+ }
+
+ FOREACH_WORD(w, l, t, state) {
+ char *k;
+
+ k = strndup(w, l);
+ if (!k) {
+ free(t);
+ free(b);
+ strv_free(a);
+ return -ENOMEM;
+ }
+
+ r = parse_uid(k, b + i);
+ free(k);
+ if (r < 0)
+ continue;
+
+ i++;
+ }
+ }
+ }
+
+ free(t);
+
+ r = strv_length(a);
+
+ if (sessions)
+ *sessions = a;
+ else
+ strv_free(a);
+
+ if (uids)
+ *uids = b;
+
+ if (n_uids)
+ *n_uids = n;
+
+ return r;
+}
+
+_public_ int sd_seat_can_multi_session(const char *seat) {
+ char *p, *s = NULL;
+ int r;
+
+ if (!seat)
+ return -EINVAL;
+
+ p = strappend("/run/systemd/seats/", seat);
+ if (!p)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE,
+ "IS_VTCONSOLE", &s,
+ NULL);
+ free(p);
+
+ if (r < 0) {
+ free(s);
+ return r;
+ }
+
+ if (s) {
+ r = parse_boolean(s);
+ free(s);
+ } else
+ r = 0;
+
+ return r;
+}
+
+_public_ int sd_get_seats(char ***seats) {
+ return get_files_in_directory("/run/systemd/seats/", seats);
+}
+
+_public_ int sd_get_sessions(char ***sessions) {
+ return get_files_in_directory("/run/systemd/sessions/", sessions);
+}
+
+_public_ int sd_get_uids(uid_t **users) {
+ DIR *d;
+ int r = 0;
+ unsigned n = 0;
+ uid_t *l = NULL;
+
+ d = opendir("/run/systemd/users/");
+ if (!d)
+ return -errno;
+
+ for (;;) {
+ struct dirent buffer, *de;
+ int k;
+ uid_t uid;
+
+ k = readdir_r(d, &buffer, &de);
+ if (k != 0) {
+ r = -k;
+ goto finish;
+ }
+
+ if (!de)
+ break;
+
+ dirent_ensure_type(d, de);
+
+ if (!dirent_is_file(de))
+ continue;
+
+ k = parse_uid(de->d_name, &uid);
+ if (k < 0)
+ continue;
+
+ if (users) {
+ if ((unsigned) r >= n) {
+ uid_t *t;
+
+ n = MAX(16, 2*r);
+ t = realloc(l, sizeof(uid_t) * n);
+ if (!t) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ l = t;
+ }
+
+ assert((unsigned) r < n);
+ l[r++] = uid;
+ } else
+ r++;
+ }
+
+finish:
+ if (d)
+ closedir(d);
+
+ if (r >= 0) {
+ if (users)
+ *users = l;
+ } else
+ free(l);
+
+ return r;
+}
+
+static inline int MONITOR_TO_FD(sd_login_monitor *m) {
+ return (int) (unsigned long) m - 1;
+}
+
+static inline sd_login_monitor* FD_TO_MONITOR(int fd) {
+ return (sd_login_monitor*) (unsigned long) (fd + 1);
+}
+
+_public_ int sd_login_monitor_new(const char *category, sd_login_monitor **m) {
+ int fd, k;
+ bool good = false;
+
+ if (!m)
+ return -EINVAL;
+
+ fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
+ if (fd < 0)
+ return errno;
+
+ if (!category || streq(category, "seat")) {
+ k = inotify_add_watch(fd, "/run/systemd/seats/", IN_MOVED_TO|IN_DELETE);
+ if (k < 0) {
+ close_nointr_nofail(fd);
+ return -errno;
+ }
+
+ good = true;
+ }
+
+ if (!category || streq(category, "session")) {
+ k = inotify_add_watch(fd, "/run/systemd/sessions/", IN_MOVED_TO|IN_DELETE);
+ if (k < 0) {
+ close_nointr_nofail(fd);
+ return -errno;
+ }
+
+ good = true;
+ }
+
+ if (!category || streq(category, "uid")) {
+ k = inotify_add_watch(fd, "/run/systemd/users/", IN_MOVED_TO|IN_DELETE);
+ if (k < 0) {
+ close_nointr_nofail(fd);
+ return -errno;
+ }
+
+ good = true;
+ }
+
+ if (!good) {
+ close_nointr(fd);
+ return -EINVAL;
+ }
+
+ *m = FD_TO_MONITOR(fd);
+ return 0;
+}
+
+_public_ sd_login_monitor* sd_login_monitor_unref(sd_login_monitor *m) {
+ int fd;
+
+ if (!m)
+ return NULL;
+
+ fd = MONITOR_TO_FD(m);
+ close_nointr(fd);
+
+ return NULL;
+}
+
+_public_ int sd_login_monitor_flush(sd_login_monitor *m) {
+
+ if (!m)
+ return -EINVAL;
+
+ return flush_fd(MONITOR_TO_FD(m));
+}
+
+_public_ int sd_login_monitor_get_fd(sd_login_monitor *m) {
+
+ if (!m)
+ return -EINVAL;
+
+ return MONITOR_TO_FD(m);
+}
diff --git a/src/login/sd-login.h b/src/login/sd-login.h
new file mode 100644
index 0000000000..0cb0bf06bb
--- /dev/null
+++ b/src/login/sd-login.h
@@ -0,0 +1,121 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foosdloginhfoo
+#define foosdloginhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <sys/types.h>
+
+/*
+ * A few points:
+ *
+ * Instead of returning an empty string array or empty uid array, we
+ * may return NULL.
+ *
+ * Free the data we return with libc free().
+ *
+ * We return error codes as negative errno, kernel-style. 0 or
+ * positive on success.
+ *
+ * These functions access data in /proc, /sys/fs/cgroup and /run. All
+ * of these are virtual file systems, hence the accesses are
+ * relatively cheap.
+ */
+
+/* Get session from PID. Note that 'shared' processes of a user are
+ * not attached to a session, but only attached to a user. This will
+ * return an error for system processes and 'shared' processes of a
+ * user. */
+int sd_pid_get_session(pid_t pid, char **session);
+
+/* Get UID of the owner of the session of the PID (or in case the
+ * process is a 'shared' user process the UID of that user is
+ * returned). This will not return the UID of the process, but rather
+ * the UID of the owner of the cgroup the process is in. This will
+ * return an error for system processes. */
+int sd_pid_get_owner_uid(pid_t pid, uid_t *uid);
+
+/* Get state from uid. Possible states: offline, lingering, online, active */
+int sd_uid_get_state(uid_t uid, char**state);
+
+/* Return 1 if uid has session on seat. If require_active is true will
+ * look for active sessions only. */
+int sd_uid_is_on_seat(uid_t uid, int require_active, const char *seat);
+
+/* Return sessions of user. If require_active is true will look for
+ * active sessions only. Returns number of sessions as return
+ * value. If sessions is NULL will just return number of sessions. */
+int sd_uid_get_sessions(uid_t uid, int require_active, char ***sessions);
+
+/* Return seats of user is on. If require_active is true will look for
+ * active seats only. Returns number of seats. If seats is NULL will
+ * just return number of seats.*/
+int sd_uid_get_seats(uid_t uid, int require_active, char ***seats);
+
+/* Return 1 if the session is a active */
+int sd_session_is_active(const char *session);
+
+/* Determine user id of session */
+int sd_session_get_uid(const char *session, uid_t *uid);
+
+/* Determine seat of session */
+int sd_session_get_seat(const char *session, char **seat);
+
+/* Return active session and user of seat */
+int sd_seat_get_active(const char *seat, char **session, uid_t *uid);
+
+/* Return sessions and users on seat. Returns number of sessions as
+ * return value. If sessions is NULL returns only the number of
+ * sessions. */
+int sd_seat_get_sessions(const char *seat, char ***sessions, uid_t **uid, unsigned *n_uids);
+
+/* Return whether the seat is multi-session capable */
+int sd_seat_can_multi_session(const char *seat);
+
+/* Get all seats, store in *seats. Returns the number of seats. If
+ * seats is NULL only returns number of seats. */
+int sd_get_seats(char ***seats);
+
+/* Get all sessions, store in *sessions. Returns the number of
+ * sessions. If sessions is NULL only returns number of sessions. */
+int sd_get_sessions(char ***sessions);
+
+/* Get all logged in users, store in *users. Returns the number of
+ * users. If users is NULL only returns the number of users. */
+int sd_get_uids(uid_t **users);
+
+/* Monitor object */
+typedef struct sd_login_monitor sd_login_monitor;
+
+/* Create a new monitor. Category must be NULL, "seat", "session",
+ * "uid" to get monitor events for the specific category (or all). */
+int sd_login_monitor_new(const char *category, sd_login_monitor** ret);
+
+/* Destroys the passed monitor. Returns NULL. */
+sd_login_monitor* sd_login_monitor_unref(sd_login_monitor *m);
+
+/* Flushes the monitor */
+int sd_login_monitor_flush(sd_login_monitor *m);
+
+/* Get FD from monitor */
+int sd_login_monitor_get_fd(sd_login_monitor *m);
+
+#endif
diff --git a/src/login/test-login.c b/src/login/test-login.c
new file mode 100644
index 0000000000..7d6f08202d
--- /dev/null
+++ b/src/login/test-login.c
@@ -0,0 +1,170 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <sys/poll.h>
+#include <string.h>
+
+#include "sd-login.h"
+#include "util.h"
+#include "strv.h"
+
+int main(int argc, char* argv[]) {
+ int r, k;
+ uid_t u, u2;
+ char *seat;
+ char *session;
+ char *state;
+ char *session2;
+ char *t;
+ char **seats, **sessions;
+ uid_t *uids;
+ unsigned n;
+ struct pollfd pollfd;
+ sd_login_monitor *m;
+
+ assert_se(sd_pid_get_session(0, &session) == 0);
+ printf("session = %s\n", session);
+
+ assert_se(sd_pid_get_owner_uid(0, &u2) == 0);
+ printf("user = %lu\n", (unsigned long) u2);
+
+ r = sd_uid_get_sessions(u2, false, &sessions);
+ assert_se(r >= 0);
+ assert_se(r == (int) strv_length(sessions));
+ assert_se(t = strv_join(sessions, ", "));
+ strv_free(sessions);
+ printf("sessions = %s\n", t);
+ free(t);
+
+ assert_se(r == sd_uid_get_sessions(u2, false, NULL));
+
+ r = sd_uid_get_seats(u2, false, &seats);
+ assert_se(r >= 0);
+ assert_se(r == (int) strv_length(seats));
+ assert_se(t = strv_join(seats, ", "));
+ strv_free(seats);
+ printf("seats = %s\n", t);
+ free(t);
+
+ assert_se(r == sd_uid_get_seats(u2, false, NULL));
+
+ r = sd_session_is_active(session);
+ assert_se(r >= 0);
+ printf("active = %s\n", yes_no(r));
+
+ assert_se(sd_session_get_uid(session, &u) >= 0);
+ printf("uid = %lu\n", (unsigned long) u);
+ assert_se(u == u2);
+
+ assert_se(sd_session_get_seat(session, &seat) >= 0);
+ printf("seat = %s\n", seat);
+
+ r = sd_seat_can_multi_session(seat);
+ assert_se(r >= 0);
+ printf("can do multi session = %s\n", yes_no(r));
+
+ assert_se(sd_uid_get_state(u, &state) >= 0);
+ printf("state = %s\n", state);
+
+ assert_se(sd_uid_is_on_seat(u, 0, seat) > 0);
+
+ k = sd_uid_is_on_seat(u, 1, seat);
+ assert_se(k >= 0);
+ assert_se(!!r == !!r);
+
+ assert_se(sd_seat_get_active(seat, &session2, &u2) >= 0);
+ printf("session2 = %s\n", session2);
+ printf("uid2 = %lu\n", (unsigned long) u2);
+
+ r = sd_seat_get_sessions(seat, &sessions, &uids, &n);
+ assert_se(r >= 0);
+ printf("n_sessions = %i\n", r);
+ assert_se(r == (int) strv_length(sessions));
+ assert_se(t = strv_join(sessions, ", "));
+ strv_free(sessions);
+ printf("sessions = %s\n", t);
+ free(t);
+ printf("uids =");
+ for (k = 0; k < (int) n; k++)
+ printf(" %lu", (unsigned long) uids[k]);
+ printf("\n");
+ free(uids);
+
+ assert_se(sd_seat_get_sessions(seat, NULL, NULL, NULL) == r);
+
+ free(session);
+ free(state);
+ free(session2);
+ free(seat);
+
+ r = sd_get_seats(&seats);
+ assert_se(r >= 0);
+ assert_se(r == (int) strv_length(seats));
+ assert_se(t = strv_join(seats, ", "));
+ strv_free(seats);
+ printf("n_seats = %i\n", r);
+ printf("seats = %s\n", t);
+ free(t);
+
+ assert_se(sd_get_seats(NULL) == r);
+
+ r = sd_get_sessions(&sessions);
+ assert_se(r >= 0);
+ assert_se(r == (int) strv_length(sessions));
+ assert_se(t = strv_join(sessions, ", "));
+ strv_free(sessions);
+ printf("n_sessions = %i\n", r);
+ printf("sessions = %s\n", t);
+ free(t);
+
+ assert_se(sd_get_sessions(NULL) == r);
+
+ r = sd_get_uids(&uids);
+ assert_se(r >= 0);
+
+ printf("uids =");
+ for (k = 0; k < r; k++)
+ printf(" %lu", (unsigned long) uids[k]);
+ printf("\n");
+ free(uids);
+
+ printf("n_uids = %i\n", r);
+ assert_se(sd_get_uids(NULL) == r);
+
+ r = sd_login_monitor_new("session", &m);
+ assert_se(r >= 0);
+
+ zero(pollfd);
+ pollfd.fd = sd_login_monitor_get_fd(m);
+ pollfd.events = POLLIN;
+
+ for (n = 0; n < 5; n++) {
+ r = poll(&pollfd, 1, -1);
+ assert_se(r >= 0);
+
+ sd_login_monitor_flush(m);
+ printf("Wake!\n");
+ }
+
+ sd_login_monitor_unref(m);
+
+ return 0;
+}
diff --git a/src/login/uaccess.c b/src/login/uaccess.c
new file mode 100644
index 0000000000..49ac4af0f4
--- /dev/null
+++ b/src/login/uaccess.c
@@ -0,0 +1,90 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <errno.h>
+#include <string.h>
+
+#include "logind-acl.h"
+#include "util.h"
+#include "log.h"
+#include "sd-daemon.h"
+#include "sd-login.h"
+
+int main(int argc, char *argv[]) {
+ int r;
+ const char *path = NULL, *seat;
+ bool changed_acl = false;
+ uid_t uid;
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ if (argc < 2 || argc > 3) {
+ log_error("This program expects one or two arguments.");
+ r = -EINVAL;
+ goto finish;
+ }
+
+ /* Make sure we don't muck around with ACLs the system is not
+ * running systemd. */
+ if (!sd_booted())
+ return 0;
+
+ path = argv[1];
+ seat = argc < 3 || isempty(argv[2]) ? "seat0" : argv[2];
+
+ r = sd_seat_get_active(seat, NULL, &uid);
+ if (r == -ENOENT) {
+ /* No active session on this seat */
+ r = 0;
+ goto finish;
+ } else if (r < 0) {
+ log_error("Failed to determine active user on seat %s.", seat);
+ goto finish;
+ }
+
+ r = devnode_acl(path, true, false, 0, true, uid);
+ if (r < 0) {
+ log_error("Failed to apply ACL on %s: %s", path, strerror(-r));
+ goto finish;
+ }
+
+ changed_acl = true;
+ r = 0;
+
+finish:
+ if (path && !changed_acl) {
+ int k;
+ /* Better be safe that sorry and reset ACL */
+
+ k = devnode_acl(path, true, false, 0, false, 0);
+ if (k < 0) {
+ log_error("Failed to apply ACL on %s: %s", path, strerror(-k));
+ if (r >= 0)
+ r = k;
+ }
+ }
+
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-07 01:46:46 +0000