#include <rpc/rpc.h>
+/* Hopefully big enough to hold any serialized context */
+#define MAX_CTX_LEN 4096
+
+
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);