M_MBUF            523 sys/mbuf.h     	M_MBUF,		/* MT_DATA	1	   dynamic (data) allocation */
M_MBUF            524 sys/mbuf.h     	M_MBUF,		/* MT_HEADER	2	   packet header */
M_MBUF            525 sys/mbuf.h     	M_MBUF,		/* MT_SONAME	8	   socket name */
M_MBUF            528 sys/mbuf.h     	M_MBUF,		/* MT_CONTROL	14	   extra-data protocol message */
M_MBUF            529 sys/mbuf.h     	M_MBUF,		/* MT_OOBDATA	15	   expedited data  */