xfree86: add new key MatchSeat to xorg.conf sections "Device", "Screen", and "ServerLayout"

This patch introduces a new key MatchSeat in xorg.conf (also applies to
any .conf file in xorg.conf.d). It will allow targeting a given
"Device", "Screen", and/or "ServerLayout" section to a particular
seat only (specified by option "-seat" in X server command line),
so that other seats won't be affected.

Without this patch, one needs to write a separate xorg.conf.custom
file and pass it to X server via "-config" option, if one wants that
these settings only apply for the right seat. However, in some cases,
this solution is undesirable or even impossible (e.g. when using GDM,
which doesn't allow X server command line customization).

Example file (/etc/X11/xorg.conf.d/seat1.conf), which would be ignored
by X server unless it was started with "-seat seat1" option:

Section "Device"
    Identifier "card0"
    Driver "nvidia"
    Option "NoLogo" "True"
    MatchSeat "seat1"
EndSection

Signed-off-by: Oleg Samarin <osamarin68@gmail.com>
Signed-off-by: Laércio de Sousa <lbsousajr@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/hw/xfree86/parser/xf86Parser.h b/hw/xfree86/parser/xf86Parser.h
index 8f855ac09..c95423a1f 100644
--- a/hw/xfree86/parser/xf86Parser.h
+++ b/hw/xfree86/parser/xf86Parser.h
@@ -224,6 +224,7 @@ typedef struct {
     int dev_screen;
     XF86OptionPtr dev_option_lst;
     char *dev_comment;
+    char *match_seat;
 } XF86ConfDeviceRec, *XF86ConfDevicePtr;
 
 typedef struct {
@@ -275,6 +276,7 @@ typedef struct {
     XF86OptionPtr scrn_option_lst;
     char *scrn_comment;
     int scrn_virtualX, scrn_virtualY;
+    char *match_seat;
 } XF86ConfScreenRec, *XF86ConfScreenPtr;
 
 typedef struct {
@@ -366,6 +368,7 @@ typedef struct {
     XF86ConfInactivePtr lay_inactive_lst;
     XF86ConfInputrefPtr lay_input_lst;
     XF86OptionPtr lay_option_lst;
+    char *match_seat;
     char *lay_comment;
 } XF86ConfLayoutRec, *XF86ConfLayoutPtr;