I am new in XACML.I am planing to implement RBAC in our organization applications using XACML policy and Wso2 ID server. I had read many articles on creating different different XACML policy using wso2 and I also try many policy example.but after go through all the available example I didn't find proper way to creating XACML policyset and reuest for policy set. I try it by my self to create XACML PolicySet but when I try to execute this policyset in wso2 Id server then it gives me 'not applicable' error every time.I try a lot for creating XACML policyset in different way but when i create request for that then it not gives me proper result. Help me to give proper example of XACML policyset and it's request.
Here I added my policyset and policy and also it's request. please let me know what was wrong in it.
Role Created in wso2Id is :- testRole and assign this role to testUser
PolicySet is :-
<PolicySet xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17" PolicyCombiningAlgId="urn:oasis:names:tc:xacml:3.0:policy-combining-algorithm:permit-overrides" PolicySetId="PolicySetExample" Version="1.0">
<Description>TestPolicySet</Description>
<Target>
<AnyOf>
<AllOf>
<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">H1</AttributeValue>
<AttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:environment:environment-id" Category="urn:oasis:names:tc:xacml:3.0:attribute-category:environment" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="true"></AttributeDesignator>
</Match>
</AllOf>
</AnyOf>
</Target>
<PolicyIdReference>ComplexPolicy</PolicyIdReference>
</PolicySet>
Policy
<Policy xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17" PolicyId="ComplexPolicy" RuleCombiningAlgId="urn:oasis:names:tc:xacml:3.0:rule-combining-algorithm:permit-overrides" Version="1.0">
<Target>
<AnyOf>
<AllOf>
<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">H1</AttributeValue>
<AttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:environment:environment-id" Category="urn:oasis:names:tc:xacml:3.0:attribute-category:environment" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="true"></AttributeDesignator>
</Match>
</AllOf>
</AnyOf>
</Target>
<Rule Effect="Permit" RuleId="PermitForTestUser">
<Condition>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:and">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:and">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-at-least-one-member-of">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-bag">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">index.jsp</AttributeValue>
</Apply>
<AttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="true"></AttributeDesignator>
</Apply>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-at-least-one-member-of">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-bag">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">read</AttributeValue>
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">view</AttributeValue>
</Apply>
<AttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id" Category="urn:oasis:names:tc:xacml:3.0:attribute-category:action" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="true"></AttributeDesignator>
</Apply>
</Apply>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">testRole</AttributeValue>
<AttributeDesignator AttributeId="http://wso2.org/claims/role" Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="true"></AttributeDesignator>
</Apply>
</Apply>
</Condition>
</Rule>
</Policy>
PolicySet Request
<Request xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17" CombinedDecision="false" ReturnPolicyIdList="false">
<Attributes Category="urn:oasis:names:tc:xacml:3.0:attribute-category:action">
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">read</AttributeValue>
</Attribute>
</Attributes>
<Attributes Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject">
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">testU</AttributeValue>
</Attribute>
</Attributes>
<Attributes Category="urn:oasis:names:tc:xacml:3.0:attribute-category:environment">
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:environment:environment-id" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">H1</AttributeValue>
</Attribute>
</Attributes>
<Attributes Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource">
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">index.jsp</AttributeValue>
</Attribute>
</Attributes>
If you are using Policy Set with WSO2IS, Please note following.
You need to publish both Policy Set policy and reference policies in to PDP.
Then you need to enable the Policy Set in the PDP. You can keep the reference policies as disabled policies.
Please refer more detail from here as well
If you are going to implement RBAC and ABAC with WSO2 Identity Server, I recommnad for you to go through this to get more understanding.