[unix-history] / usr.bin / netstat / mbuf.c

/*
 * Copyright (c) 1983, 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
/* From: static char sccsid[] = "@(#)mbuf.c	5.10 (Berkeley) 1/30/91"; */
static const char mbuf_c_rcsid[] =
	"$Id$";
#endif /* not lint */

#include <stdio.h>
#include <sys/param.h>
#include <sys/mbuf.h>
#define	YES	1
typedef int bool;

struct	mbstat mbstat;

static struct mbtypes {
	int	mt_type;
	char	*mt_name;
} mbtypes[] = {
	{ MT_DATA,	"data" },
	{ MT_OOBDATA,	"oob data" },
	{ MT_CONTROL,	"ancillary data" },
	{ MT_HEADER,	"packet headers" },
	{ MT_SOCKET,	"socket structures" },			/* XXX */
	{ MT_PCB,	"protocol control blocks" },		/* XXX */
	{ MT_RTABLE,	"routing table entries" },		/* XXX */
	{ MT_HTABLE,	"IMP host table entries" },		/* XXX */
	{ MT_ATABLE,	"address resolution tables" },
	{ MT_FTABLE,	"fragment reassembly queue headers" },	/* XXX */
	{ MT_SONAME,	"socket names and addresses" },
	{ MT_SOOPTS,	"socket options" },
	{ MT_RIGHTS,	"access rights" },
	{ MT_IFADDR,	"interface addresses" }, 		/* XXX */
	{ 0, 0 }
};

int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
bool seen[256];			/* "have we seen this type yet?" */

/*
 * Print mbuf statistics.
 */
mbpr(mbaddr)
	off_t mbaddr;
{
	register int totmem, totfree, totmbufs;
	register int i;
	register struct mbtypes *mp;

	if (nmbtypes != 256) {
		fprintf(stderr, "unexpected change to mbstat; check source\n");
		return;
	}
	if (mbaddr == 0) {
		printf("mbstat: symbol not in namelist\n");
		return;
	}
	if (kvm_read(mbaddr, (char *)&mbstat, sizeof (mbstat))
						!= sizeof (mbstat)) {
		printf("mbstat: bad read\n");
		return;
	}
	totmbufs = 0;
	for (mp = mbtypes; mp->mt_name; mp++)
		totmbufs += mbstat.m_mtypes[mp->mt_type];
	printf("%u mbufs in use:\n", totmbufs);
	for (mp = mbtypes; mp->mt_name; mp++)
		if (mbstat.m_mtypes[mp->mt_type]) {
			seen[mp->mt_type] = YES;
			printf("\t%u mbufs allocated to %s\n",
			    mbstat.m_mtypes[mp->mt_type], mp->mt_name);
		}
	seen[MT_FREE] = YES;
	for (i = 0; i < nmbtypes; i++)
		if (!seen[i] && mbstat.m_mtypes[i]) {
			printf("\t%u mbufs allocated to <mbuf type %d>\n",
			    mbstat.m_mtypes[i], i);
		}
	printf("%u/%u mapped pages in use\n",
		mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
	totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
	totfree = mbstat.m_clfree * MCLBYTES;
	printf("%u Kbytes allocated to network (%d%% in use)\n",
		totmem / 1024, (totmem - totfree) * 100 / totmem);
	printf("%u requests for memory denied\n", mbstat.m_drops);
	printf("%u requests for memory delayed\n", mbstat.m_wait);
	printf("%u calls to protocol drain routines\n", mbstat.m_drain);
}
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1983, 1988 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
	34	#ifndef lint
49f80972 GW	35	/* From: static char sccsid[] = "@(#)mbuf.c 5.10 (Berkeley) 1/30/91"; */
	36	static const char mbuf_c_rcsid[] =
	37	"$Id$";
15637ed4 RG	38	#endif /* not lint */
	39
	40	#include <stdio.h>
	41	#include <sys/param.h>
	42	#include <sys/mbuf.h>
	43	#define YES 1
	44	typedef int bool;
	45
	46	struct mbstat mbstat;
	47
	48	static struct mbtypes {
	49	int mt_type;
	50	char *mt_name;
	51	} mbtypes[] = {
	52	{ MT_DATA, "data" },
	53	{ MT_OOBDATA, "oob data" },
	54	{ MT_CONTROL, "ancillary data" },
	55	{ MT_HEADER, "packet headers" },
	56	{ MT_SOCKET, "socket structures" }, /* XXX */
	57	{ MT_PCB, "protocol control blocks" }, /* XXX */
	58	{ MT_RTABLE, "routing table entries" }, /* XXX */
	59	{ MT_HTABLE, "IMP host table entries" }, /* XXX */
	60	{ MT_ATABLE, "address resolution tables" },
	61	{ MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
	62	{ MT_SONAME, "socket names and addresses" },
	63	{ MT_SOOPTS, "socket options" },
	64	{ MT_RIGHTS, "access rights" },
	65	{ MT_IFADDR, "interface addresses" }, /* XXX */
	66	{ 0, 0 }
	67	};
	68
	69	int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
	70	bool seen[256]; /* "have we seen this type yet?" */
	71
	72	/*
	73	* Print mbuf statistics.
	74	*/
	75	mbpr(mbaddr)
	76	off_t mbaddr;
	77	{
	78	register int totmem, totfree, totmbufs;
	79	register int i;
	80	register struct mbtypes *mp;
	81
	82	if (nmbtypes != 256) {
	83	fprintf(stderr, "unexpected change to mbstat; check source\n");
	84	return;
	85	}
	86	if (mbaddr == 0) {
	87	printf("mbstat: symbol not in namelist\n");
	88	return;
	89	}
	90	if (kvm_read(mbaddr, (char *)&mbstat, sizeof (mbstat))
	91	!= sizeof (mbstat)) {
	92	printf("mbstat: bad read\n");
	93	return;
	94	}
	95	totmbufs = 0;
	96	for (mp = mbtypes; mp->mt_name; mp++)
	97	totmbufs += mbstat.m_mtypes[mp->mt_type];
	98	printf("%u mbufs in use:\n", totmbufs);
	99	for (mp = mbtypes; mp->mt_name; mp++)
	100	if (mbstat.m_mtypes[mp->mt_type]) {
	101	seen[mp->mt_type] = YES;
102	printf("\t%u mbufs allocated to %s\n",
103	mbstat.m_mtypes[mp->mt_type], mp->mt_name);
104	}
105	seen[MT_FREE] = YES;
106	for (i = 0; i < nmbtypes; i++)
107	if (!seen[i] && mbstat.m_mtypes[i]) {
108	printf("\t%u mbufs allocated to <mbuf type %d>\n",
109	mbstat.m_mtypes[i], i);
110	}
111	printf("%u/%u mapped pages in use\n",
112	mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
113	totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
114	totfree = mbstat.m_clfree * MCLBYTES;
115	printf("%u Kbytes allocated to network (%d%% in use)\n",
116	totmem / 1024, (totmem - totfree) * 100 / totmem);
117	printf("%u requests for memory denied\n", mbstat.m_drops);
118	printf("%u requests for memory delayed\n", mbstat.m_wait);
119	printf("%u calls to protocol drain routines\n", mbstat.m_drain);
120	}