buf_t buf_geteblk(int);
#ifdef KERNEL_PRIVATE
void buf_setfilter(buf_t, void (*)(buf_t, void *), void *, void **, void **);
+
+/*!
+ @function buf_getcpaddr
+ @abstract Set the address of cp_entry on a buffer.
+ @param bp Buffer whose cp entry value has to be set
+ @return void.
+ */
+void buf_setcpaddr(buf_t, void *);
+
+/*!
+ @function buf_getcpaddr
+ @abstract Get the address of cp_entry on a buffer.
+ @param bp Buffer whose error value to set.
+ @return int.
+ */
+void *buf_getcpaddr(buf_t);
#endif /* KERNEL_PRIVATE */