Parameter Description Locking '> struct label *label char *element_name struct sbuf *sb int *claimed '> label Label to be externalized element_name Name of the policy whose label should be externalized sb String buffer to be filled with a text representation of label claimed Should be incremented when element_data can be filled in. '> Produce an externalized label based on the label structure passed. An externalized label consists of a text representation of the label contents that can be used with userland applications and read by the user. Currently, all policies' externalize entry points will be called, so the implementation should check the contents of element_name before attempting to fill in sb. If element_name does not match the name of your policy, simply return 0. Only return nonzero if an error occurs while externalizing the label data. Once the policy fills in element_data, *claimed should be incremented. '> struct label *label char *element_name char *element_data int *claimed '> label Label to be filled in element_name Name of the policy whose label should be internalized element_data Text data to be internalized claimed Should be incremented when data can be successfully internalized. '> Produce an internal label structure based on externalized label data in text format. Currently, all policies' internalize entry points are called when internalization is requested, so the implementation should compare the contents of element_name to its own name in order to be sure it should be internalizing the data in element_data. Just as in the externalize entry points, the entry point should return 0 if element_name does not match its own name, or when data can successfully be internalized, in which case *claimed should be incremented. '>