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gdm/gdm-add-runtime-option-to-disable-starting-X-server-as-u.patch

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3.6 KiB
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From a19b51ad9e446948ba60c359641f6c4c14fec1da Mon Sep 17 00:00:00 2001
From: Michal Srb <msrb@suse.com>
Date: Fri, 26 Jan 2018 10:49:18 +0100
Subject: [PATCH] Add runtime option to disable starting X server as user
If the environmental variable GDM_DISABLE_USER_DISPLAY_SERVER is defined, the
X server will be started under root. The same way as if gdm was built with
--disable-user-display-server option.
This allows system to run X server under root if and only-if necessary.
---
Index: gdm-3.32.0+2/daemon/gdm-local-display-factory.c
===================================================================
--- gdm-3.32.0+2.orig/daemon/gdm-local-display-factory.c
+++ gdm-3.32.0+2/daemon/gdm-local-display-factory.c
@@ -231,11 +231,12 @@ gdm_local_display_factory_create_transie
g_debug ("GdmLocalDisplayFactory: Creating transient display");
-#ifdef ENABLE_USER_DISPLAY_SERVER
- display = gdm_local_display_new ();
- if (gdm_local_display_factory_use_wayland ())
- g_object_set (G_OBJECT (display), "session-type", "wayland", NULL);
-#else
+ if (getenv ("GDM_DISABLE_USER_DISPLAY_SERVER") == NULL) {
+ display = gdm_local_display_new ();
+ if (gdm_local_display_factory_use_wayland ())
+ g_object_set (G_OBJECT (display), "session-type", "wayland", NULL);
+ }
+
if (display == NULL) {
guint32 num;
@@ -243,7 +244,6 @@ gdm_local_display_factory_create_transie
display = gdm_legacy_display_new (num);
}
-#endif
g_object_set (display,
"seat-id", "seat0",
@@ -468,7 +468,7 @@ create_display (GdmLocalDisplayFactory *
g_debug ("GdmLocalDisplayFactory: Adding display on seat %s", seat_id);
#ifdef ENABLE_USER_DISPLAY_SERVER
- if (g_strcmp0 (seat_id, "seat0") == 0) {
+ if (getenv ("GDM_DISABLE_USER_DISPLAY_SERVER") == NULL && g_strcmp0 (seat_id, "seat0") == 0) {
display = gdm_local_display_new ();
if (session_type != NULL) {
g_object_set (G_OBJECT (display), "session-type", session_type, NULL);
Index: gdm-3.32.0+2/daemon/gdm-session.c
===================================================================
--- gdm-3.32.0+2.orig/daemon/gdm-session.c
+++ gdm-3.32.0+2/daemon/gdm-session.c
@@ -373,7 +373,11 @@ get_system_session_dirs (GdmSession *sel
#ifdef ENABLE_WAYLAND_SUPPORT
if (!self->ignore_wayland) {
#ifdef ENABLE_USER_DISPLAY_SERVER
- g_array_prepend_val (search_array, wayland_search_dir);
+ if (getenv ("GDM_DISABLE_USER_DISPLAY_SERVER") == NULL) {
+ g_array_prepend_val (search_array, wayland_search_dir);
+ } else {
+ g_array_append_val (search_array, wayland_search_dir);
+ }
for (i = 0; system_data_dirs[i]; i++) {
gchar *dir = g_build_filename (system_data_dirs[i], "wayland-sessions", NULL);
@@ -3276,8 +3280,10 @@ gdm_session_get_display_mode (GdmSession
* right now. It will die with an error if logind devices
* are paused when handed out.
*/
- return GDM_SESSION_DISPLAY_MODE_NEW_VT;
-#else
+ if (getenv ("GDM_DISABLE_USER_DISPLAY_SERVER") == NULL) {
+ return GDM_SESSION_DISPLAY_MODE_NEW_VT;
+ }
+#endif
#ifdef ENABLE_WAYLAND_SUPPORT
/* Wayland sessions are for now assumed to run in a
@@ -3288,7 +3294,6 @@ gdm_session_get_display_mode (GdmSession
}
#endif
return GDM_SESSION_DISPLAY_MODE_REUSE_VT;
-#endif
}
void