Re: Is it possible to assign different labels to symbolic links and actual files?

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On Tue, 2011-05-24 at 13:46 -0700, Sam Gandhi wrote:
> Hello,
> 
> I am working on a embedded platform and we have busybox on this device.
> 
> What we would like to do do is assign diffrent labels to various
> busybox links. What we have seen when running things on JFFS2 when I
> label a symbolic link, the actual file gets the label, but the link
> itself doesn't (according to ls -lZ output).  We have seen similar
> behaviour with files on tmpfs as well.
> 
> ls -lZ
> -rw-r--r--        1         0 Jan  1 00:12 system_u:object_r:myfile_t X
> lrwxrwxrwx    1         1 Jan  1 00:13 user_u:object_r:tmpfs_t          Y -> X
> 
> Is there no way to assign different label to symlink and actual files?

chcon -h
semanage -f -l
-l in policy file contexts

> Is this file-system specific issue? Are there any file-system that
> support assigning seperate labels to symlink and actual file?

It depends on the userspace code and/or the policy as explained above.

> -Sam

Regards,

Guido


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