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Re: [Xen-devel] [PATCH] Add password support to pygrub for GRUB bootload

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Subject: Re: [Xen-devel] [PATCH] Add password support to pygrub for GRUB bootloader
From: Michal Novotny <minovotn@xxxxxxxxxx>
Date: Fri, 21 Aug 2009 12:18:43 +0200
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Hi,
this patch (applied as http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3 , c/s 20099) introduced a problem for Itanium systems using LiloConf. This patch is the fix for elilo. Since I am unable to find information whether eLilo supports password protection or not, this patch makes the entry and command-line editing on IA64 systems as if no patch with c/s 20099 was applied.

Thanks,
Michal

Michal Novotny wrote:
Hi,
this is the patch to add password support to pygrub for GRUB bootloader. It basically checks for the presence of password line in grub.conf of the guest image and if this line is present, it supports both clear text and md5 versions of the password. Editing the grub entries and command-line are disabled when some password is set in domain's grub.conf file but the password was not entered yet. Also, new option to press 'p' in interactive pygrub has been added to allow entering the grub password. It's been tested on x86_64 with PV guests and was working fine. Also, the countdown has been stopped after key was pressed, ie. the user is probably editing the boot configuration.

Michal

Signed-off-by: Michal Novotny <minovotn@xxxxxxxxxx>
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diff -r 7dad2e23bf89 tools/pygrub/src/LiloConf.py
--- a/tools/pygrub/src/LiloConf.py      Thu Aug 20 22:26:16 2009 +0100
+++ b/tools/pygrub/src/LiloConf.py      Fri Aug 21 12:15:02 2009 +0200
@@ -138,6 +138,12 @@ class LiloConfigFile(object):
         if len(img) > 0:
             self.add_image(LiloImage(img, path))
 
+    def hasPassword(self):
+        return False
+
+    def hasPasswordAccess(self):
+        return True
+
     def add_image(self, image):
         self.images.append(image)
 
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