MLS and Biba

[Salvo Giuffrida]

Good morning, is it possible to configure the MLS policy, using 
mlsconstraint, to enforce a Biba integrity model of security (no read down, 
no write up), instead of the Bell-LaPadula (no read up, no write down)? I'm 
reading the book "SELinux by example", and there there's written that the 
MLS facility in the Security Server is not very flexible, and allows only to 
enforce the rules "no read up, no write down". But, if I'm the one 
configuring the policy in the file "mls", shouldn't I be able to change the 
rules to the opposite?
Thanks a lot...

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