lkml.org 
[lkml]   [1999]   [Apr]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] Capabilities, this time in elf section
Date
Richard Gooch writes:
> Albert D. Cahalan writes:
>> David L. Parsley writes:
>>> Now, I have a suggestion that should apply equally to either solution; it
>>> could be possible to specify in a mount option masks for permitted and
>>> inheritable. This would limit the actual capabilites the mount would
>>> honor. This could be nice for either implementation.
>>
>> This is great. It can not be supported by Richard Gooch's system though.
>> I suppose one could scan the filesystem and then remount it.
>
> Sorry, I don't see why not.

You wanted to insert code into the executable that would check for
a capabilites section, instead of letting the kernel do the job.

The kernel knows what the mount options were. Userspace has little
clue what they were. You could add a system call for that or hope
that /etc/mtab has the data you need. Both options are crummy.

Your solution offers full support on old kernels, but that breaks
if you add a system call to check the mount options.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:51    [from the cache]
©2003-2011 Jasper Spaans