The SP includes so-called "RP" support for the WS-Federation protocol as profiled by Microsoft in their ADFSv1 product. The SP can act as a WS-Federation Passive Profile relying party in the same fashion that it supports SAML. All SP features not specific to the SAML protocol are supported equally for WS-Federation IdPs.
Support for WS-Federation is currently provisioned and secured using the same metadata sources used for SAML. A profile of SAML metadata for use by WS-Federation peers was developed for the Shibboleth 1.3 release and remains supported in Shibboleth 2.0.