diff -up kde-workspace-4.10.90/CMakeLists.txt.kdm_logind kde-workspace-4.10.90/CMakeLists.txt

--- kde-workspace-4.10.90/CMakeLists.txt.kdm_logind	2013-06-27 16:27:30.199895076 -0500

+++ kde-workspace-4.10.90/CMakeLists.txt	2013-06-27 16:30:25.167008304 -0500

@@ -128,6 +128,13 @@ if(Q_WS_X11)

   endif()

 endif(Q_WS_X11)

+macro_optional_find_package(Systemd)

+set_package_properties(Systemd PROPERTIES DESCRIPTION "Init and service manager for Linux"

+                       URL "http://www.freedesktop.org/wiki/Software/systemd"

+                       TYPE OPTIONAL

+                       PURPOSE "Provides automatic multi-seat, session and power management features"

+                      )

+

 macro_optional_find_package(GLIB2 2.0)

 set_package_properties(GLIB2 PROPERTIES DESCRIPTION "Low-level core library for data structure handling, portability wrappers, etc."

                        URL "http://www.gtk.org"

diff -up kde-workspace-4.10.90/cmake/modules/CMakeLists.txt.kdm_logind kde-workspace-4.10.90/cmake/modules/CMakeLists.txt

--- kde-workspace-4.10.90/cmake/modules/CMakeLists.txt.kdm_logind	2013-06-10 13:51:11.000000000 -0500

+++ kde-workspace-4.10.90/cmake/modules/CMakeLists.txt	2013-06-27 16:27:30.199895076 -0500

@@ -8,6 +8,7 @@ set(cmakeFiles FindCkConnector.cmake

                FindOpenGLES.cmake

                FindPAM.cmake

                FindSensors.cmake

+               FindSystemd.cmake

                PkgConfigGetVar.cmake

                UnixAuth.cmake )

diff -up kde-workspace-4.10.90/cmake/modules/FindSystemd.cmake.kdm_logind kde-workspace-4.10.90/cmake/modules/FindSystemd.cmake

--- kde-workspace-4.10.90/cmake/modules/FindSystemd.cmake.kdm_logind	2013-06-27 16:27:30.200895065 -0500

+++ kde-workspace-4.10.90/cmake/modules/FindSystemd.cmake	2013-06-27 16:27:30.200895065 -0500

@@ -0,0 +1,39 @@

+# Finds systemd and its libraries

+# Not a huge module but sufficient for now

+# Uses the same semantics as pkg_check_modules, i.e. ${LIB}{_FOUND,_INCLUDE_DIR,_LIBRARIES}

+# where ${LIB} can be one of the following:

+#     LIBSYSTEMD_JOURNAL, SYSTEMD, LIBSYSTEMD_DAEMON, LIBSYSTEMD_LOGIN, LIBSYSTEMD_ID128

+#

+# Copyright: Red Hat, Inc. 2013

+# Author: Martin Briza <mbriza@redhat.com>

+#

+# Distributed under the BSD license. See COPYING-CMAKE-SCRIPTS for details.

+

+#defining any of these disables systemd support

+if (NOT LIBSYSTEMD_JOURNAL_FOUND AND

+    NOT SYSTEMD_FOUND AND

+    NOT LIBSYSTEMD_DAEMON_FOUND AND

+    NOT LIBSYSTEMD_LOGIN_FOUND AND

+    NOT LIBSYSTEMD_ID128_FOUND)

+find_package(PkgConfig)

+if (PKG_CONFIG_FOUND)

+    pkg_check_modules(LIBSYSTEMD_JOURNAL QUIET "libsystemd-journal")

+    pkg_check_modules(SYSTEMD QUIET "systemd")

+    pkg_check_modules(LIBSYSTEMD_DAEMON QUIET "libsystemd-daemon")

+    pkg_check_modules(LIBSYSTEMD_LOGIN QUIET "libsystemd-login")

+    pkg_check_modules(LIBSYSTEMD_ID128 QUIET "libsystemd-id128")

+endif (PKG_CONFIG_FOUND)

+

+if (SYSTEMD_FOUND)

+    message(STATUS "Found systemd")

+endif(SYSTEMD_FOUND)

+

+mark_as_advanced(LIBSYSTEMD_JOURNAL_FOUND       SYSTEMD_FOUND       LIBSYSTEMD_DAEMON_FOUND       LIBSYSTEMD_LOGIN_FOUND       LIBSYSTEMD_ID128_FOUND)

+mark_as_advanced(LIBSYSTEMD_JOURNAL_INCLUDE_DIR SYSTEMD_INCLUDE_DIR LIBSYSTEMD_DAEMON_INCLUDE_DIR LIBSYSTEMD_LOGIN_INCLUDE_DIR LIBSYSTEMD_ID128_INCLUDE_DIR)

+mark_as_advanced(LIBSYSTEMD_JOURNAL_LIBRARIES   SYSTEMD_LIBRARIES   LIBSYSTEMD_DAEMON_LIBRARIES   LIBSYSTEMD_LOGIN_LIBRARIES   LIBSYSTEMD_ID128_LIBRARIES)

+

+endif (NOT LIBSYSTEMD_JOURNAL_FOUND AND

+       NOT SYSTEMD_FOUND AND

+       NOT LIBSYSTEMD_DAEMON_FOUND AND

+       NOT LIBSYSTEMD_LOGIN_FOUND AND

+       NOT LIBSYSTEMD_ID128_FOUND)

diff -up kde-workspace-4.10.90/kdm/backend/CMakeLists.txt.kdm_logind kde-workspace-4.10.90/kdm/backend/CMakeLists.txt

--- kde-workspace-4.10.90/kdm/backend/CMakeLists.txt.kdm_logind	2013-05-28 13:38:21.000000000 -0500

+++ kde-workspace-4.10.90/kdm/backend/CMakeLists.txt	2013-06-27 16:27:30.201895054 -0500

@@ -45,6 +45,10 @@ if (SECURE_RPC)

 		rpcauth.c

 	)

 endif (SECURE_RPC)

+if(LIBSYSTEMD_LOGIN_FOUND AND LIBSYSTEMD_DAEMON_FOUND)

+    add_definitions( -DWITH_SYSTEMD=1 )

+    set(KDM_SYSTEMD_LIBRARIES ${LIBSYSTEMD_DAEMON_LIBRARIES} ${LIBSYSTEMD_LOGIN_LIBRARIES} )

+endif(LIBSYSTEMD_LOGIN_FOUND AND LIBSYSTEMD_DAEMON_FOUND)

 macro_add_file_dependencies(dm.h ${confci})

 macro_add_file_dependencies(error.c ${CMAKE_CURRENT_SOURCE_DIR}/printf.c)

 kde4_add_executable(kdm NOGUI ${kdm_SRCS})

@@ -61,6 +65,7 @@ target_link_libraries( kdm

 	${NSL_LIBRARIES}

 	${RESOLV_LIBRARIES}

 	${SOCKET_LIBRARIES}

+	${KDM_SYSTEMD_LIBRARIES}

 )

 if (CKCONNECTOR_FOUND)

 	include_directories(${CKCONNECTOR_INCLUDE_DIR} ${DBUS_INCLUDE_DIR} ${DBUS_ARCH_INCLUDE_DIR})

diff -up kde-workspace-4.10.90/kdm/backend/dm.c.kdm_logind kde-workspace-4.10.90/kdm/backend/dm.c

--- kde-workspace-4.10.90/kdm/backend/dm.c.kdm_logind	2013-06-27 16:27:30.184895241 -0500

+++ kde-workspace-4.10.90/kdm/backend/dm.c	2013-06-27 16:27:30.201895054 -0500

@@ -50,6 +50,23 @@ from the copyright holder.

 # include <sys/vt.h>

 #endif

+#ifdef WITH_SYSTEMD

+# include <systemd/sd-login.h>

+# include <systemd/sd-daemon.h>

+

+#define SYSTEMD_FAILURE_LIMIT 25

+

+ static int systemdMonitorInit(void);

+ static void systemdMonitorDeinit();

+ static int systemdStartDisplay(char *);

+ static void systemdCheckAdded(char **);

+ static void systemdCheckRemoved(char **);

+ static void systemdHandleChange();

+

+ sd_login_monitor *systemd_monitor = NULL;

+ int systemd_monitor_fd = -1;

+#endif

+

 static void sigHandler(int n);

 static int scanConfigs(int force);

 static void startDisplay(struct display *d);

@@ -308,7 +325,16 @@ main(int argc, char **argv)

 #ifdef XDMCP

     updateListenSockets();

 #endif

+

+#ifdef WITH_SYSTEMD

+    if (systemdMonitorInit())

+        systemdHandleChange();

+#endif

+

     mainLoop();

+#ifdef WITH_SYSTEMD

+    systemdMonitorDeinit();

+#endif

     closeCtrl(0);

     if (sdRec.how) {

         int pid;

@@ -1280,6 +1306,14 @@ mainLoop(void)

                 }

                 continue;

             }

+                logError("STARTING");

+#ifdef WITH_SYSTEMD

+            if (systemd_monitor_fd >= 0 && FD_ISSET(systemd_monitor_fd, &reads)) {

+                systemdHandleChange();

+                sd_login_monitor_flush(systemd_monitor);

+                continue;

+            }

+#endif

 #ifdef XDMCP

             if (processListenSockets(&reads))

                 continue;

@@ -1304,6 +1338,151 @@ mainLoop(void)

     }

 }

+#ifdef WITH_SYSTEMD

+static int

+systemdMonitorInit(void)

+{

+    if (sd_booted() <= 0) {

+        logError("Didn't boot with systemd, automatic multiseat won't be enabled\n");

+        return False;

+    }

+

+    int check = sd_login_monitor_new("seat", &systemd_monitor);

+    if (check < 0) {

+        logError("Can't get systemd monitor: %d, automatic multiseat won't be enabled\n", check);

+        return False;

+    }

+

+    systemd_monitor_fd = sd_login_monitor_get_fd(systemd_monitor);

+    if (systemd_monitor_fd < 0) {

+        logError("Can't retrieve file descriptor from the systemd monitor: %d, automatic multiseat won't be enabled\n", systemd_monitor_fd);

+        sd_login_monitor_unref(systemd_monitor);

+        systemd_monitor_fd = -1;

+        return False;

+    }

+

+    registerInput(systemd_monitor_fd);

+    return True;

+}

+

+static void

+systemdMonitorDeinit(void)

+{

+    if (systemd_monitor) {

+        sd_login_monitor_unref(systemd_monitor);

+    }

+    systemd_monitor_fd = -1;

+}

+

+static int

+systemdStartDisplay(char *seat)

+{

+    struct display *link = NULL;

+    for (link = displays; link; link = link-> next) {

+        if (link->status == reserve)

+            break;

+    }

+    if (!link) {

+        logError("There's not enough reserve displays for all your seats/sessions");

+        return False;

+    }

+    if (!strDup((&link->systemd_seat), seat)) {

+        return False;

+    }

+#ifdef HAVE_VTS

+    link->serverVT = 0;

+#endif

+    link->status = notRunning;

+    link->stillThere = True;

+    link->authorize = True;

+    link->displayType = dLocal | dPermanent;

+    link->reqSrvVT = -1;

+    link->serverPid = -1;

+    return True;

+}

+

+static void

+systemdCheckAdded(char **seat_names) 

+{

+    char **iter_name;

+    struct display *link;

+    for (iter_name = seat_names; *iter_name; iter_name++) {

+        if (strcmp(*iter_name, "seat0") == 0)

+            continue; /* ignore the main seat */

+        int can_graphical = sd_seat_can_graphical(*iter_name);

+        for (link = displays; link; link = link->next) {

+            if (!link->systemd_seat)

+                continue;

+            /* see if the can_graphical property didn't change */

+            if (strcmp(*iter_name, link->systemd_seat) == 0) {

+                if (!can_graphical) {

+                    free(link->systemd_seat);

+                    link->systemd_seat = NULL;

+                    rStopDisplay(link, DS_RESERVE);

+                }

+                break;

+            }

+        }

+        /* the display wasn't found */

+        if (!link) {

+            if (can_graphical) {

+                /* if starting the display failed, skip this round until the next change */

+                if (!systemdStartDisplay(*iter_name))

+                    break;

+            }

+        }

+    }

+}

+

+static void

+systemdCheckRemoved(char **seat_names)

+{

+    char **iter_name;

+    struct display *link;

+    for (link = displays; link; link = link->next) {

+        for (iter_name = seat_names; *iter_name; iter_name++) {

+            if (strcmp(*iter_name, "seat0") == 0)

+                continue; /* ignore the main seat */

+            if (link->systemd_seat && strcmp(*iter_name, link->systemd_seat) == 0)

+                break;

+        }

+        if (!(*iter_name) && link->systemd_seat) { /* was not found, stop this one */

+            free(link->systemd_seat);

+            link->systemd_seat = NULL;

+            rStopDisplay(link, DS_RESERVE);

+        }

+    }

+}

+

+static void

+systemdHandleChange(void)

+{

+    static int failures = 0;

+    char **seat_names;

+    char **iter_name;

+    int check;

+    if ((check = sd_get_seats(&seat_names)) < 0) {

+        logError("Can't obtain systemd seats, error %d\n", -check);

+        failures++;

+        if (failures >= SYSTEMD_FAILURE_LIMIT) {

+            logError("%u failed calls to sd_get_seats, disabling systemd multi-seat support\n", SYSTEMD_FAILURE_LIMIT);

+            systemdMonitorDeinit();

+        }

+        return;

+    }

+

+    if (!check)

+        return;

+

+    systemdCheckAdded(seat_names);

+    systemdCheckRemoved(seat_names);

+

+    for (iter_name = seat_names; *iter_name; iter_name++)

+        free(*iter_name);

+    free(seat_names);

+}

+#endif

+

 static void

 checkDisplayStatus(struct display *d)

 {

diff -up kde-workspace-4.10.90/kdm/backend/dm.h.kdm_logind kde-workspace-4.10.90/kdm/backend/dm.h

--- kde-workspace-4.10.90/kdm/backend/dm.h.kdm_logind	2013-06-27 16:27:30.184895241 -0500

+++ kde-workspace-4.10.90/kdm/backend/dm.h	2013-06-27 16:27:30.201895054 -0500

@@ -306,6 +306,9 @@ struct display {

     char *greeterAuthFile;      /* file to store authorization for greeter in */

     int plymouth_vt;            /* Plymouth's VT nr */

+#ifdef WITH_SYSTEMD

+    char *systemd_seat;

+#endif

 };

 #define d_location   1

diff -up kde-workspace-4.10.90/kdm/backend/server.c.kdm_logind kde-workspace-4.10.90/kdm/backend/server.c

--- kde-workspace-4.10.90/kdm/backend/server.c.kdm_logind	2013-06-27 16:27:30.184895241 -0500

+++ kde-workspace-4.10.90/kdm/backend/server.c	2013-06-27 16:27:30.201895054 -0500

@@ -43,6 +43,7 @@ from the copyright holder.

 #include <stdio.h>

 #include <signal.h>

+#define SYSTEMD_X_WRAPPER "/lib/systemd/systemd-multi-seat-x"

 struct display *startingServer;

 time_t serverTimeout = TO_INF;

@@ -55,9 +56,18 @@ prepareServerArgv(struct display *d, con

     char vtstr[8];

 #endif

-    if (!(argv = parseArgs(0, d->serverCmd)) ||

-        !(argv = addStrArr(argv, d->name, -1)))

+#if WITH_SYSTEMD

+    FILE *tmpFile = NULL;

+    if ((tmpFile = fopen(SYSTEMD_X_WRAPPER, "rb")) != NULL && fclose(tmpFile) == 0) {

+        if (!(argv = parseArgs(0, SYSTEMD_X_WRAPPER)) || !(argv = addStrArr(argv, d->name, -1))) {

+            exit(47);

+        }

+    }

+    else

+#endif

+    if (!(argv = parseArgs(0, d->serverCmd)) || !(argv = addStrArr(argv, d->name, -1))) {

         exit(47);

+    }

 #ifdef HAVE_VTS

     if (d->serverVT &&

         !(argv = addStrArr(argv, vtstr,

@@ -70,6 +80,25 @@ prepareServerArgv(struct display *d, con

     if (!changeUser(d->serverUID, d->authFile))

         exit(47);

+#ifdef WITH_SYSTEMD

+    if (d->systemd_seat) {

+        if (!(argv = parseArgs(argv, "-seat")))

+            exit(47);

+        if (!(argv = parseArgs(argv, d->systemd_seat)))

+            exit(47);

+        if (!(argv = parseArgs(argv, "-layout")))

+            exit(47);

+        if (!(argv = parseArgs(argv, d->systemd_seat)))

+            exit(47);

+    }

+    else {

+        if (!(argv = parseArgs(argv, "-seat")))

+            exit(47);

+        if (!(argv = parseArgs(argv, "seat0")))

+            exit(47);

+    }

+#endif

+

     return argv;

 }

--- kde-workspace-4.10.2/kdm/backend/client.c.kdm_logind

+++ kde-workspace-4.10.2/kdm/backend/client.c

@@ -1460,6 +1460,14 @@ startClient(volatile int *pid)

 #endif

     userEnviron = inheritEnv(env, envvars);

     env = systemEnv(0, curuser);

+#ifdef WITH_SYSTEMD

+    if (td->systemd_seat) {

+        char *envbuf;

+        ASPrintf(&envbuf, "XDG_SEAT=%s", td->systemd_seat);

+        pam_putenv(pamh, envbuf);

+        env = setEnv(env, "XDG_SEAT", td->systemd_seat);

+    }

+#endif

     systemEnviron = setEnv(env, "HOME", p->pw_dir);

     debug("user environment:\n%[|''>'\n's"

           "system environment:\n%[|''>'\n's"

--- kde-workspace-4.10.2/kdm/backend/session.c.kdm_logind

+++ kde-workspace-4.10.2/kdm/backend/session.c

@@ -437,6 +437,10 @@ openGreeter()

     grttalk.pipe = &grtproc.pipe;

     env = systemEnv(dupEnv(), 0);

+#ifdef WITH_SYSTEMD

+    if (td->systemd_seat)

+        env = setEnv(env, "XDG_SEAT", td->systemd_seat);

+#endif

     if (gOpen(&grtproc, (char **)0, "_greet", env, name,

               greeterUID, td->greeterAuthFile, &td->gpipe))

         sessionExit(EX_UNMANAGE_DPY);