[RFC] change policy loading to initramfs

Daniel J Walsh dwalsh at redhat.com
Thu Jan 24 15:35:42 UTC 2008


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Bill Nottingham wrote:
> We're looking to move to a different init system in Fedora - the
> current work is going to be around upstart, most likely. upstart
> does not have native code for loading the SELinux policy.
> 
> We could modify every possible init to load the policy... but
> that would be painful. So we might as well move to having the
> policy loaded from the initramfs. The attached patches are the
> first quick cut at doing that.
> 
> The main patch is for mkinitrd/nash; there's a short patch for the
> current init, as it will abort if policy is already loaded. We
> can't actually remove the code from init to load the policy, as
> there will always be older initramfses.
> 
> Comments? Ideas for different ways to do this? It's sort of ugly
> with fork and chroot(), but to avoid that we'd have to reimplement
> most, if not all, of libselinux's policy loading code directly.
> 
> Bill
> 
> 
> ------------------------------------------------------------------------
> 
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> fedora-selinux-list mailing list
> fedora-selinux-list at redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-selinux-list

We also have to worry about transitions.

init_t -> initrc_t -> httpd_t

If an init program (initng) does not do a fork/exec of the initrc_t
script then transitions will not work properly.
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