gnome3.gdm: fix session chooser

We are patching GDM to respect GDM_SESSIONS_DIR environment
variable, which we are setting in the GDM module. Previously, we
only took care of a single code path, the one that handled session
start-up; missing the one obtaining the list of sessions.

This commit patches the second code path, and also whitelists the
GDM_SESSIONS_DIR so that it can be passed to the greeter.

Fixes #34101
This commit is contained in:
Jan Tojnar 2018-05-02 04:16:27 +02:00
parent 127de7480e
commit 300af66777
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GPG key ID: 7FAB2A15F7A607A4

View file

@ -1,8 +1,17 @@
diff --git a/daemon/gdm-session.c b/daemon/gdm-session.c
index ff3a1acb..b8705d8f 100644
--- a/daemon/gdm-launch-environment.c
+++ b/daemon/gdm-launch-environment.c
@@ -126,7 +126,7 @@
"LC_COLLATE", "LC_MONETARY", "LC_MESSAGES", "LC_PAPER",
"LC_NAME", "LC_ADDRESS", "LC_TELEPHONE", "LC_MEASUREMENT",
"LC_IDENTIFICATION", "LC_ALL", "WINDOWPATH", "XCURSOR_PATH",
- "XDG_CONFIG_DIRS", NULL
+ "XDG_CONFIG_DIRS", "GDM_SESSIONS_DIR", NULL
};
char *system_data_dirs;
int i;
--- a/daemon/gdm-session.c
+++ b/daemon/gdm-session.c
@@ -344,6 +344,7 @@ get_system_session_dirs (GdmSession *self)
@@ -345,12 +345,17 @@
char **search_dirs;
static const char *x_search_dirs[] = {
@ -10,8 +19,7 @@ index ff3a1acb..b8705d8f 100644
"/etc/X11/sessions/",
DMCONFDIR "/Sessions/",
DATADIR "/gdm/BuiltInSessions/",
@@ -351,6 +352,10 @@ get_system_session_dirs (GdmSession *self)
NULL
DATADIR "/xsessions/",
};
+ if (getenv("GDM_SESSIONS_DIR") != NULL) {
@ -21,3 +29,24 @@ index ff3a1acb..b8705d8f 100644
static const char *wayland_search_dir = DATADIR "/wayland-sessions/";
search_array = g_array_new (TRUE, TRUE, sizeof (char *));
--- a/libgdm/gdm-sessions.c
+++ b/libgdm/gdm-sessions.c
@@ -217,6 +217,7 @@
{
int i;
const char *xorg_search_dirs[] = {
+ "/var/empty/",
"/etc/X11/sessions/",
DMCONFDIR "/Sessions/",
DATADIR "/gdm/BuiltInSessions/",
@@ -224,6 +225,10 @@
NULL
};
+ if (g_getenv("GDM_SESSIONS_DIR") != NULL) {
+ xorg_search_dirs[0] = g_getenv("GDM_SESSIONS_DIR");
+ };
+
#ifdef ENABLE_WAYLAND_SUPPORT
const char *wayland_search_dirs[] = {
DATADIR "/wayland-sessions/",