int serialize_context_for_kernel(gss_ctx_id_t ctx, gss_buffer_desc *buf,
gss_OID mech);
int serialize_spkm3_ctx(gss_ctx_id_t ctx, gss_buffer_desc *buf);
int serialize_context_for_kernel(gss_ctx_id_t ctx, gss_buffer_desc *buf,
gss_OID mech);
int serialize_spkm3_ctx(gss_ctx_id_t ctx, gss_buffer_desc *buf);