Annotation of src/usr.bin/netstat/mbuf.c, Revision 1.3
1.3 ! deraadt 1: /* $OpenBSD: mbuf.c,v 1.9 1996/05/07 02:55:03 thorpej Exp $ */
1.2 deraadt 2: /* $NetBSD: mbuf.c,v 1.9 1996/05/07 02:55:03 thorpej Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: #if 0
39: static char sccsid[] = "from: @(#)mbuf.c 8.1 (Berkeley) 6/6/93";
40: #else
1.3 ! deraadt 41: static char *rcsid = "$OpenBSD: mbuf.c,v 1.9 1996/05/07 02:55:03 thorpej Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
44:
45: #include <sys/param.h>
46: #include <sys/protosw.h>
47: #include <sys/socket.h>
48: #include <sys/mbuf.h>
49:
50: #include <stdio.h>
51: #include "netstat.h"
52:
53: #define YES 1
54: typedef int bool;
55:
56: struct mbstat mbstat;
57:
58: static struct mbtypes {
59: int mt_type;
60: char *mt_name;
61: } mbtypes[] = {
62: { MT_DATA, "data" },
63: { MT_OOBDATA, "oob data" },
64: { MT_CONTROL, "ancillary data" },
65: { MT_HEADER, "packet headers" },
66: { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
67: { MT_SONAME, "socket names and addresses" },
68: { MT_SOOPTS, "socket options" },
69: { 0, 0 }
70: };
71:
72: int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
73: bool seen[256]; /* "have we seen this type yet?" */
74:
75: /*
76: * Print mbuf statistics.
77: */
78: void
79: mbpr(mbaddr)
80: u_long mbaddr;
81: {
82: register int totmem, totfree, totmbufs;
83: register int i;
84: register struct mbtypes *mp;
85:
86: if (nmbtypes != 256) {
87: fprintf(stderr,
1.2 deraadt 88: "%s: unexpected change to mbstat; check source\n",
89: __progname);
1.1 deraadt 90: return;
91: }
92: if (mbaddr == 0) {
1.2 deraadt 93: fprintf(stderr, "%s: mbstat: symbol not in namelist\n",
94: __progname);
1.1 deraadt 95: return;
96: }
97: if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
98: return;
99: totmbufs = 0;
100: for (mp = mbtypes; mp->mt_name; mp++)
101: totmbufs += mbstat.m_mtypes[mp->mt_type];
102: printf("%u mbufs in use:\n", totmbufs);
103: for (mp = mbtypes; mp->mt_name; mp++)
104: if (mbstat.m_mtypes[mp->mt_type]) {
105: seen[mp->mt_type] = YES;
106: printf("\t%u mbufs allocated to %s\n",
107: mbstat.m_mtypes[mp->mt_type], mp->mt_name);
108: }
109: seen[MT_FREE] = YES;
110: for (i = 0; i < nmbtypes; i++)
111: if (!seen[i] && mbstat.m_mtypes[i]) {
112: printf("\t%u mbufs allocated to <mbuf type %d>\n",
113: mbstat.m_mtypes[i], i);
114: }
115: printf("%u/%u mapped pages in use\n",
116: mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
117: totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
118: totfree = mbstat.m_clfree * MCLBYTES;
119: printf("%u Kbytes allocated to network (%d%% in use)\n",
120: totmem / 1024, (totmem - totfree) * 100 / totmem);
121: printf("%u requests for memory denied\n", mbstat.m_drops);
122: printf("%u requests for memory delayed\n", mbstat.m_wait);
123: printf("%u calls to protocol drain routines\n", mbstat.m_drain);
124: }
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