Multiple Access Control List type framework support

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Beginning with version 5.3.0, the AIX® operating system supports an infrastructure for different Access Control List (ACL) types to exist for different file system objects within the operating system.

This infrastructure allows for uniform methods to manage ACLs irrespective of the ACL type associated with the object. The framework includes the following components:

ACL administration commands: These are commands, such as aclget, aclput, acledit, aclconvert, aclgetttypes. These commands call library interfaces that invoke ACL-type-specific modules.
ACL library interfaces: ACL Library interfaces act as front-ends to the applications that need to access ACLs.
ACL-type-specific dynamically loadable ACL modules: The AIX operating system provides a set of ACL-type-specific modules for AIX Classic ACLs (AIXC) and NFS4 ACLs (nfs4).