Annotation of src/usr.bin/netstat/mbuf.c, Revision 1.12
1.12 ! art 1: /* $OpenBSD: mbuf.c,v 1.11 2002/01/17 21:34:58 mickey 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
1.12 ! art 41: static char *rcsid = "$OpenBSD: mbuf.c,v 1.11 2002/01/17 21:34:58 mickey Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
1.8 provos 44:
1.1 deraadt 45: #include <sys/param.h>
46: #include <sys/protosw.h>
47: #include <sys/socket.h>
48: #include <sys/mbuf.h>
1.8 provos 49: #include <sys/pool.h>
1.1 deraadt 50:
1.5 millert 51: #include <limits.h>
1.1 deraadt 52: #include <stdio.h>
53: #include "netstat.h"
54:
55: #define YES 1
56: typedef int bool;
57:
58: struct mbstat mbstat;
1.8 provos 59: struct pool mbpool, mclpool;
60:
1.1 deraadt 61:
62: static struct mbtypes {
63: int mt_type;
64: char *mt_name;
65: } mbtypes[] = {
66: { MT_DATA, "data" },
67: { MT_OOBDATA, "oob data" },
68: { MT_CONTROL, "ancillary data" },
69: { MT_HEADER, "packet headers" },
70: { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
71: { MT_SONAME, "socket names and addresses" },
72: { MT_SOOPTS, "socket options" },
73: { 0, 0 }
74: };
75:
76: int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
77: bool seen[256]; /* "have we seen this type yet?" */
78:
79: /*
80: * Print mbuf statistics.
81: */
82: void
1.8 provos 83: mbpr(mbaddr, mbpooladdr, mclpooladdr)
1.1 deraadt 84: u_long mbaddr;
1.8 provos 85: u_long mbpooladdr, mclpooladdr;
1.1 deraadt 86: {
1.9 mpech 87: int totmem, totused, totmbufs, totpct;
88: int i;
89: struct mbtypes *mp;
1.10 art 90: int page_size = getpagesize();
1.1 deraadt 91:
92: if (nmbtypes != 256) {
93: fprintf(stderr,
1.2 deraadt 94: "%s: unexpected change to mbstat; check source\n",
1.11 mickey 95: __progname);
1.1 deraadt 96: return;
97: }
98: if (mbaddr == 0) {
1.2 deraadt 99: fprintf(stderr, "%s: mbstat: symbol not in namelist\n",
100: __progname);
1.1 deraadt 101: return;
102: }
103: if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
104: return;
1.8 provos 105: if (kread(mbpooladdr, (char *)&mbpool, sizeof (mbpool)))
106: return;
107:
108: if (kread(mclpooladdr, (char *)&mclpool, sizeof (mclpool)))
109: return;
110:
1.1 deraadt 111: totmbufs = 0;
112: for (mp = mbtypes; mp->mt_name; mp++)
113: totmbufs += mbstat.m_mtypes[mp->mt_type];
1.6 denny 114: printf("%u mbuf%s in use:\n", totmbufs, plural(totmbufs));
1.1 deraadt 115: for (mp = mbtypes; mp->mt_name; mp++)
116: if (mbstat.m_mtypes[mp->mt_type]) {
117: seen[mp->mt_type] = YES;
1.6 denny 118: printf("\t%u mbuf%s allocated to %s\n",
119: mbstat.m_mtypes[mp->mt_type],
120: plural((int)mbstat.m_mtypes[mp->mt_type]),
121: mp->mt_name);
1.1 deraadt 122: }
123: seen[MT_FREE] = YES;
124: for (i = 0; i < nmbtypes; i++)
125: if (!seen[i] && mbstat.m_mtypes[i]) {
1.6 denny 126: printf("\t%u mbuf%s allocated to <mbuf type %d>\n",
127: mbstat.m_mtypes[i],
128: plural((int)mbstat.m_mtypes[i]), i);
1.1 deraadt 129: }
1.4 millert 130: printf("%lu/%lu mapped pages in use\n",
1.11 mickey 131: (u_long)(mclpool.pr_nget - mclpool.pr_nput),
132: ((u_long)mclpool.pr_npages * mclpool.pr_itemsperpage));
1.10 art 133: totmem = (mbpool.pr_npages * page_size) +
134: (mclpool.pr_npages * page_size);
1.11 mickey 135: totused = (mbpool.pr_nget - mbpool.pr_nput) * mbpool.pr_size +
1.8 provos 136: (mclpool.pr_nget - mclpool.pr_nput) * mclpool.pr_size;
137: totpct = (totmem == 0)? 0 : ((totused * 100)/totmem);
1.1 deraadt 138: printf("%u Kbytes allocated to network (%d%% in use)\n",
1.8 provos 139: totmem / 1024, totpct);
1.4 millert 140: printf("%lu requests for memory denied\n", mbstat.m_drops);
141: printf("%lu requests for memory delayed\n", mbstat.m_wait);
142: printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
1.1 deraadt 143: }
![[BACK]](/icons/back.gif){kind=icon}
Return to mbuf.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / netstat