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|
--- libgdm/gdm-user-switching.c.orig 2015-07-20 13:13:45 UTC
+++ libgdm/gdm-user-switching.c
@@ -31,12 +31,25 @@
#include <glib-object.h>
#include <gio/gio.h>
+#ifdef WITH_SYSTEMD
#include <systemd/sd-login.h>
+#endif
#include "common/gdm-common.h"
#include "gdm-user-switching.h"
#include "gdm-client.h"
+#ifdef WITH_CONSOLE_KIT
+#define CK_NAME "org.freedesktop.ConsoleKit"
+#define CK_PATH "/org/freedesktop/ConsoleKit"
+#define CK_INTERFACE "org.freedesktop.ConsoleKit"
+
+#define CK_MANAGER_PATH "/org/freedesktop/ConsoleKit/Manager"
+#define CK_MANAGER_INTERFACE "org.freedesktop.ConsoleKit.Manager"
+#define CK_SEAT_INTERFACE "org.freedesktop.ConsoleKit.Seat"
+#define CK_SESSION_INTERFACE "org.freedesktop.ConsoleKit.Session"
+#endif
+
static gboolean
create_transient_display (GDBusConnection *connection,
GCancellable *cancellable,
@@ -67,12 +80,304 @@ create_transient_display (GDBusConnectio
return TRUE;
}
+#ifdef WITH_CONSOLE_KIT
+
static gboolean
-activate_session_id (GDBusConnection *connection,
- GCancellable *cancellable,
- const char *seat_id,
- const char *session_id,
- GError **error)
+get_current_session_id (GDBusConnection *connection,
+ char **session_id)
+{
+ GError *local_error = NULL;
+ GVariant *reply;
+
+ reply = g_dbus_connection_call_sync (connection,
+ CK_NAME,
+ CK_MANAGER_PATH,
+ CK_MANAGER_INTERFACE,
+ "GetCurrentSession",
+ NULL, /* parameters */
+ G_VARIANT_TYPE ("(o)"),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL, &local_error);
+ if (reply == NULL) {
+ g_warning ("Unable to determine session: %s", local_error->message);
+ g_error_free (local_error);
+ return FALSE;
+ }
+
+ g_variant_get (reply, "(o)", session_id);
+ g_variant_unref (reply);
+
+ return TRUE;
+}
+
+static gboolean
+get_seat_id_for_session (GDBusConnection *connection,
+ const char *session_id,
+ char **seat_id)
+{
+ GError *local_error = NULL;
+ GVariant *reply;
+
+ reply = g_dbus_connection_call_sync (connection,
+ CK_NAME,
+ session_id,
+ CK_SESSION_INTERFACE,
+ "GetSeatId",
+ NULL, /* parameters */
+ G_VARIANT_TYPE ("(o)"),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL, &local_error);
+ if (reply == NULL) {
+ g_warning ("Unable to determine seat: %s", local_error->message);
+ g_error_free (local_error);
+ return FALSE;
+ }
+
+ g_variant_get (reply, "(o)", seat_id);
+ g_variant_unref (reply);
+
+ return TRUE;
+}
+
+static char *
+get_current_seat_id (GDBusConnection *connection)
+{
+ gboolean res;
+ char *session_id;
+ char *seat_id;
+
+ session_id = NULL;
+ seat_id = NULL;
+
+ res = get_current_session_id (connection, &session_id);
+ if (res) {
+ res = get_seat_id_for_session (connection, session_id, &seat_id);
+ }
+ g_free (session_id);
+
+ return seat_id;
+}
+
+static gboolean
+activate_session_id_for_ck (GDBusConnection *connection,
+ GCancellable *cancellable,
+ const char *seat_id,
+ const char *session_id,
+ GError **error)
+{
+ GVariant *reply;
+
+ reply = g_dbus_connection_call_sync (connection,
+ CK_NAME,
+ seat_id,
+ CK_SEAT_INTERFACE,
+ "ActivateSession",
+ g_variant_new ("(o)", session_id),
+ NULL,
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL, error);
+ if (reply == NULL) {
+ g_prefix_error (error, _("Unable to activate session: "));
+ return FALSE;
+ }
+
+ g_variant_unref (reply);
+
+ return TRUE;
+}
+
+static gboolean
+session_is_login_window (GDBusConnection *connection,
+ const char *session_id)
+{
+ GError *local_error = NULL;
+ GVariant *reply;
+ const char *value;
+ gboolean ret;
+
+ reply = g_dbus_connection_call_sync (connection,
+ CK_NAME,
+ session_id,
+ CK_SESSION_INTERFACE,
+ "GetSessionType",
+ NULL,
+ G_VARIANT_TYPE ("(s)"),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL, &local_error);
+ if (reply == NULL) {
+ g_warning ("Unable to determine session type: %s", local_error->message);
+ g_error_free (local_error);
+ return FALSE;
+ }
+
+ g_variant_get (reply, "(&s)", &value);
+
+ if (value == NULL || value[0] == '\0' || strcmp (value, "LoginWindow") != 0) {
+ ret = FALSE;
+ } else {
+ ret = TRUE;
+ }
+
+ g_variant_unref (reply);
+
+ return ret;
+}
+
+static gboolean
+seat_can_activate_sessions (GDBusConnection *connection,
+ const char *seat_id)
+{
+ GError *local_error = NULL;
+ GVariant *reply;
+ gboolean ret;
+
+ reply = g_dbus_connection_call_sync (connection,
+ CK_NAME,
+ seat_id,
+ CK_SEAT_INTERFACE,
+ "CanActivateSessions",
+ NULL,
+ G_VARIANT_TYPE ("(b)"),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL, &local_error);
+ if (reply == NULL) {
+ g_warning ("Unable to determine if can activate sessions: %s", local_error->message);
+ g_error_free (local_error);
+ return FALSE;
+ }
+
+ g_variant_get (reply, "(b)", &ret);
+ g_variant_unref (reply);
+
+ return ret;
+}
+
+static const char **
+seat_get_sessions (GDBusConnection *connection,
+ const char *seat_id)
+{
+ GError *local_error = NULL;
+ GVariant *reply;
+ const char **value;
+
+ reply = g_dbus_connection_call_sync (connection,
+ CK_NAME,
+ seat_id,
+ CK_SEAT_INTERFACE,
+ "GetSessions",
+ NULL,
+ G_VARIANT_TYPE ("(ao)"),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL, &local_error);
+ if (reply == NULL) {
+ g_warning ("Unable to list sessions: %s", local_error->message);
+ g_error_free (local_error);
+ return FALSE;
+ }
+
+ g_variant_get (reply, "(^ao)", &value);
+ g_variant_unref (reply);
+
+ return value;
+}
+
+static gboolean
+get_login_window_session_id_for_ck (GDBusConnection *connection,
+ const char *seat_id,
+ char **session_id)
+{
+ gboolean can_activate_sessions;
+ const char **sessions;
+ int i;
+
+ *session_id = NULL;
+ sessions = NULL;
+
+ g_debug ("checking if seat can activate sessions");
+
+ can_activate_sessions = seat_can_activate_sessions (connection, seat_id);
+ if (! can_activate_sessions) {
+ g_debug ("seat is unable to activate sessions");
+ return FALSE;
+ }
+
+ sessions = seat_get_sessions (connection, seat_id);
+ for (i = 0; sessions [i] != NULL; i++) {
+ const char *ssid;
+
+ ssid = sessions [i];
+
+ if (session_is_login_window (connection, ssid)) {
+ *session_id = g_strdup (ssid);
+ break;
+ }
+ }
+ g_free (sessions);
+
+ return TRUE;
+}
+
+static gboolean
+goto_login_session_for_ck (GDBusConnection *connection,
+ GCancellable *cancellable,
+ GError **error)
+{
+ gboolean ret;
+ gboolean res;
+ char *session_id;
+ char *seat_id;
+
+ ret = FALSE;
+
+ /* First look for any existing LoginWindow sessions on the seat.
+ If none are found, create a new one. */
+
+ seat_id = get_current_seat_id (connection);
+ if (seat_id == NULL || seat_id[0] == '\0') {
+ g_debug ("seat id is not set; can't switch sessions");
+ g_set_error (error, GDM_CLIENT_ERROR, 0, _("Could not identify the current session."));
+
+ return FALSE;
+ }
+
+ res = get_login_window_session_id_for_ck (connection, seat_id, &session_id);
+ if (! res) {
+ g_set_error (error, GDM_CLIENT_ERROR, 0, _("User unable to switch sessions."));
+ return FALSE;
+ }
+
+ if (session_id != NULL) {
+ res = activate_session_id_for_ck (connection, cancellable, seat_id, session_id, error);
+ if (res) {
+ ret = TRUE;
+ }
+ }
+
+ if (! ret && g_strcmp0 (seat_id, "/org/freedesktop/ConsoleKit/Seat1") == 0) {
+ res = create_transient_display (connection, cancellable, error);
+ if (res) {
+ ret = TRUE;
+ }
+ }
+
+ return ret;
+}
+#endif
+
+#ifdef WITH_SYSTEMD
+
+static gboolean
+activate_session_id_for_systemd (GDBusConnection *connection,
+ GCancellable *cancellable,
+ const char *seat_id,
+ const char *session_id,
+ GError **error)
{
GVariant *reply;
@@ -97,8 +402,8 @@ activate_session_id (GDBusConnection *c
}
static gboolean
-get_login_window_session_id (const char *seat_id,
- char **session_id)
+get_login_window_session_id_for_systemd (const char *seat_id,
+ char **session_id)
{
gboolean ret;
int res, i;
@@ -182,9 +487,9 @@ out:
}
static gboolean
-goto_login_session (GDBusConnection *connection,
- GCancellable *cancellable,
- GError **error)
+goto_login_session_for_systemd (GDBusConnection *connection,
+ GCancellable *cancellable,
+ GError **error)
{
gboolean ret;
int res;
@@ -238,9 +543,9 @@ goto_login_session (GDBusConnection *co
return FALSE;
}
- res = get_login_window_session_id (seat_id, &session_id);
+ res = get_login_window_session_id_for_systemd (seat_id, &session_id);
if (res && session_id != NULL) {
- res = activate_session_id (connection, cancellable, seat_id, session_id, error);
+ res = activate_session_id_for_systemd (connection, cancellable, seat_id, session_id, error);
if (res) {
ret = TRUE;
@@ -259,10 +564,11 @@ goto_login_session (GDBusConnection *co
return ret;
}
+#endif
gboolean
gdm_goto_login_session_sync (GCancellable *cancellable,
- GError **error)
+ GError **error)
{
GDBusConnection *connection;
gboolean retval;
@@ -271,8 +577,23 @@ gdm_goto_login_session_sync (GCancellabl
if (!connection)
return FALSE;
- retval = goto_login_session (connection, cancellable, error);
+#ifdef WITH_SYSTEMD
+ if (LOGIND_RUNNING()) {
+ retval = goto_login_session_for_systemd (connection,
+ cancellable,
+ error);
+
+ g_object_unref (connection);
+ return retval;
+ }
+#endif
+
+#ifdef WITH_CONSOLE_KIT
+ retval = goto_login_session_for_ck (connection, cancellable, error);
g_object_unref (connection);
return retval;
+#else
+ return FALSE;
+#endif
}
|
