X11 Server (Quartz 1.20.4) not having security extensions

[Christoph Kukulies]

I found that

ssh -X user at remote_host 


doesn’t do X-forwarding, and that is - I’m told - because the X11 server (XQuartz 1.20.4 (xorg-server 1.20.4) doesn’t have security extensions.


$ xdpyinfo -queryExtensions

name of display:    /private/tmp/com.apple.launchd.NM3gWpA6AH/org.macports:0
version number:    11.0
vendor string:    The X.Org <http://x.org/> Foundation
vendor release number:    12004000
X.Org <http://x.org/> version: 1.20.4
maximum request size:  16777212 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
   depth 1, bits_per_pixel 1, scanline_pad 32
   depth 4, bits_per_pixel 8, scanline_pad 32
   depth 8, bits_per_pixel 8, scanline_pad 32
   depth 15, bits_per_pixel 16, scanline_pad 32
   depth 16, bits_per_pixel 16, scanline_pad 32
   depth 24, bits_per_pixel 32, scanline_pad 32
   depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  None
number of extensions:    21
   Apple-DRI  (opcode: 128, base event: 64, base error: 128)
   Apple-WM  (opcode: 129, base event: 68, base error: 130)
   BIG-REQUESTS  (opcode: 134)
   DAMAGE  (opcode: 142, base event: 97, base error: 154)
   DOUBLE-BUFFER  (opcode: 144, base error: 155)
   GLX  (opcode: 148, base event: 101, base error: 159)
   Generic Event Extension  (opcode: 130)
   MIT-SCREEN-SAVER  (opcode: 143, base event: 98)
   MIT-SHM  (opcode: 132, base event: 72, base error: 132)
   Present  (opcode: 145)
   RANDR  (opcode: 141, base event: 95, base error: 149)
   RENDER  (opcode: 140, base error: 144)
   SHAPE  (opcode: 131, base event: 71)
   SYNC  (opcode: 135, base event: 90, base error: 138)
   X-Resource  (opcode: 146)
   XC-MISC  (opcode: 137)
   XFIXES  (opcode: 139, base event: 93, base error: 142)
   XINERAMA  (opcode: 138)
   XInputExtension  (opcode: 133, base event: 73, base error: 133)
   XKEYBOARD  (opcode: 136, base event: 92, base error: 141)
   XVideo  (opcode: 147, base event: 99, base error: 156)
default screen number:    0
number of screens:    1

screen #0:
 dimensions:    1680x1028 pixels (445x272 millimeters)
 resolution:    96x96 dots per inch
 depths (7):    24, 1, 4, 8, 15, 16, 32
 root window id:    0x111
 depth of root window:    24 planes
 number of colormaps:    minimum 1, maximum 1
 default colormap:    0x21
 default number of colormap cells:    256
 preallocated pixels:    black 0, white 16777215
 options:    backing-store NO, save-unders NO
 largest cursor:    32x32
 current input event mask:    0x1a0000
   StructureNotifyMask      SubstructureNotifyMask   SubstructureRedirectMask 
 number of visuals:    80
 default visual id:  0x22
 visual:
   visual id:    0x22
   class:    TrueColor
   depth:    24 planes
   available colormap entries:    256 per subfield
   red, green, blue masks:    0xff0000, 0xff00, 0xff
   significant bits in color specification:    8 bits



Is there a way to make the server having these extensions? Or are there reasons standing against this?


—
Christoph
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