File seatedsession.patch of Package polkit

diff -ur a/src/polkitbackend/polkitbackendsessionmonitor-systemd.c b/src/polkitbackend/polkitbackendsessionmonitor-systemd.c
--- a/src/polkitbackend/polkitbackendsessionmonitor-systemd.c	2015-06-19 22:31:02.000000000 +0200
+++ b/src/polkitbackend/polkitbackendsessionmonitor-systemd.c	2016-08-09 07:38:36.352980158 +0200
@@ -298,6 +298,33 @@
   return ret;
 }
 
+static int
+fetch_seated_session(uid_t uid, char **session_id)
+{
+  int i = 0;
+  char **sessions = NULL;
+  char *seat = NULL;
+  int count = sd_uid_get_sessions (uid, FALSE, &sessions);
+    
+  for (i = 0; i < count; ++i) 
+    {
+      if (*session_id == NULL && sessions[i] != NULL) 
+        {
+          seat = NULL;
+          sd_session_get_seat (sessions[i], &seat);
+          if (seat != NULL) 
+            {
+              *session_id = g_strdup(sessions[i]);
+            }
+          free(seat);
+        }
+      free(sessions[i]);
+    }
+  free(sessions);
+  
+  return *session_id != NULL ? 0 : -1;
+}
+
 /**
  * polkit_backend_session_monitor_get_session_for_subject:
  * @monitor: A #PolkitBackendSessionMonitor.
@@ -318,9 +345,7 @@
   PolkitSubject *session = NULL;
   char *session_id = NULL;
   pid_t pid;
-#if HAVE_SD_UID_GET_DISPLAY
   uid_t uid;
-#endif
 
   if (POLKIT_IS_UNIX_PROCESS (subject))
     process = POLKIT_UNIX_PROCESS (subject); /* We already have a process */
@@ -351,17 +376,24 @@
       goto out;
     }
 
-#if HAVE_SD_UID_GET_DISPLAY
-  /* Now do process -> uid -> graphical session (systemd version 213)*/
   if (sd_pid_get_owner_uid (pid, &uid) < 0)
     goto out;
 
+#if HAVE_SD_UID_GET_DISPLAY
+  /* Now do process -> uid -> graphical session (systemd version 213)*/
+
   if (sd_uid_get_display (uid, &session_id) >= 0)
     {
       session = polkit_unix_session_new (session_id);
       goto out;
     }
 #endif
+  /* Now do process -> uid -> seated session if there is one (sailfish OS)*/
+  if (fetch_seated_session (uid, &session_id) >= 0)
+    {
+      session = polkit_unix_session_new (session_id);
+      goto out;
+    }
 
  out:
   free (session_id);