Annotation of src/usr.bin/netstat/mbuf.c, Revision 1.11
1.11 ! mickey 1: /* $OpenBSD: mbuf.c,v 1.10 2002/01/15 22:41:01 art 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
1.11 ! mickey 41: static char *rcsid = "$OpenBSD: mbuf.c,v 1.10 2002/01/15 22:41:01 art Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
44:
1.8 provos 45: #define __POOL_EXPOSE
46:
1.1 deraadt 47: #include <sys/param.h>
48: #include <sys/protosw.h>
49: #include <sys/socket.h>
50: #include <sys/mbuf.h>
1.8 provos 51: #include <sys/pool.h>
1.1 deraadt 52:
1.5 millert 53: #include <limits.h>
1.1 deraadt 54: #include <stdio.h>
55: #include "netstat.h"
56:
57: #define YES 1
58: typedef int bool;
59:
60: struct mbstat mbstat;
1.8 provos 61: struct pool mbpool, mclpool;
62:
1.1 deraadt 63:
64: static struct mbtypes {
65: int mt_type;
66: char *mt_name;
67: } mbtypes[] = {
68: { MT_DATA, "data" },
69: { MT_OOBDATA, "oob data" },
70: { MT_CONTROL, "ancillary data" },
71: { MT_HEADER, "packet headers" },
72: { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
73: { MT_SONAME, "socket names and addresses" },
74: { MT_SOOPTS, "socket options" },
75: { 0, 0 }
76: };
77:
78: int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
79: bool seen[256]; /* "have we seen this type yet?" */
80:
81: /*
82: * Print mbuf statistics.
83: */
84: void
1.8 provos 85: mbpr(mbaddr, mbpooladdr, mclpooladdr)
1.1 deraadt 86: u_long mbaddr;
1.8 provos 87: u_long mbpooladdr, mclpooladdr;
1.1 deraadt 88: {
1.9 mpech 89: int totmem, totused, totmbufs, totpct;
90: int i;
91: struct mbtypes *mp;
1.10 art 92: int page_size = getpagesize();
1.1 deraadt 93:
94: if (nmbtypes != 256) {
95: fprintf(stderr,
1.2 deraadt 96: "%s: unexpected change to mbstat; check source\n",
1.11 ! mickey 97: __progname);
1.1 deraadt 98: return;
99: }
100: if (mbaddr == 0) {
1.2 deraadt 101: fprintf(stderr, "%s: mbstat: symbol not in namelist\n",
102: __progname);
1.1 deraadt 103: return;
104: }
105: if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
106: return;
1.8 provos 107: if (kread(mbpooladdr, (char *)&mbpool, sizeof (mbpool)))
108: return;
109:
110: if (kread(mclpooladdr, (char *)&mclpool, sizeof (mclpool)))
111: return;
112:
1.1 deraadt 113: totmbufs = 0;
114: for (mp = mbtypes; mp->mt_name; mp++)
115: totmbufs += mbstat.m_mtypes[mp->mt_type];
1.6 denny 116: printf("%u mbuf%s in use:\n", totmbufs, plural(totmbufs));
1.1 deraadt 117: for (mp = mbtypes; mp->mt_name; mp++)
118: if (mbstat.m_mtypes[mp->mt_type]) {
119: seen[mp->mt_type] = YES;
1.6 denny 120: printf("\t%u mbuf%s allocated to %s\n",
121: mbstat.m_mtypes[mp->mt_type],
122: plural((int)mbstat.m_mtypes[mp->mt_type]),
123: mp->mt_name);
1.1 deraadt 124: }
125: seen[MT_FREE] = YES;
126: for (i = 0; i < nmbtypes; i++)
127: if (!seen[i] && mbstat.m_mtypes[i]) {
1.6 denny 128: printf("\t%u mbuf%s allocated to <mbuf type %d>\n",
129: mbstat.m_mtypes[i],
130: plural((int)mbstat.m_mtypes[i]), i);
1.1 deraadt 131: }
1.4 millert 132: printf("%lu/%lu mapped pages in use\n",
1.11 ! mickey 133: (u_long)(mclpool.pr_nget - mclpool.pr_nput),
! 134: ((u_long)mclpool.pr_npages * mclpool.pr_itemsperpage));
1.10 art 135: totmem = (mbpool.pr_npages * page_size) +
136: (mclpool.pr_npages * page_size);
1.11 ! mickey 137: totused = (mbpool.pr_nget - mbpool.pr_nput) * mbpool.pr_size +
1.8 provos 138: (mclpool.pr_nget - mclpool.pr_nput) * mclpool.pr_size;
139: totpct = (totmem == 0)? 0 : ((totused * 100)/totmem);
1.1 deraadt 140: printf("%u Kbytes allocated to network (%d%% in use)\n",
1.8 provos 141: totmem / 1024, totpct);
1.4 millert 142: printf("%lu requests for memory denied\n", mbstat.m_drops);
143: printf("%lu requests for memory delayed\n", mbstat.m_wait);
144: printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
1.1 deraadt 145: }
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