source: examples/creddy_prover_tests/README @ e3462b4

This directory contains various ABAC scenarios that exercise
various feature of the current RT2 implmentation using YAP prolog.

The frontend query client is abac_prover_yap. 

Each subdirectory has a README script which includes a description
of the scenario, and creddy calls that generate the needed credentials. 
There is a run_query script which sets up and runs couple of typical 
query using abac_prover_yap.

runcheck, is the top level script that initiates the run_query scripts
within each subdirectory with ABAC_CN mode (see below); captures the
result and compares with the baseline result stored in allout.save. 
runcheck also makes a complete run_query run without ABAC_CN enabled as
a round of regression testing. runcheck call .runall to cleanup all
the byproducts of a run and also setup the credentials needed in each
subdirectories

abac_prover_yap

Usage: abac_prover_yap 
        --keystore <keystore> 
        --role <keyid.role> --principal <keyid>
        --oset <keyid.oset> --object <otype>
    loads the keystore and runs the query role <-?- principal
                                the query oset <-?- object
        --dump <file> 
    extracts all credentials from the prolog db

keystore is the location where the prover will search to load credentials.
All accessible identity credentials and attribute credentials will be 
picked up one file at a time.

role, oset, principal, and object are specified with principal's SHA1 
value extracted from the credentials that are loaded from keystore location
using creddy. Example can be found in the run_queryscript.

An actual example from balltime_rt2_typed,

abac_prover_yap --keystore /home/mei/Deter/abac/examples/balltime_rt2_typed 
  --role [keyid:212146063d65264e8f27c31f0da592e386fc59aa].role:stadium
                 ([string:'access'],[boolean:true],[time:20120228T130000]) 
  --principal [keyid:49bdcd1278fce71d7c5cb3ee9138c22f7379e8e0]

One useful environment variable,

ABAC_CN, use CN instead of SHA1 value for identifying the principals. This
is useful for debugging purpose but will not resolve conflict when CN is not
uniquely associated with each principal's SHA1 value.

env ABAC_CN=1 runall run