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399 lines
11 KiB
C
399 lines
11 KiB
C
#if !defined(lint) && !defined(SABER)
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static char sccsid[] = "@(#)ns_stats.c 4.10 (Berkeley) 6/27/90";
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static char rcsid[] = "$Id: ns_stats.c,v 1.2 1995/05/30 03:49:00 rgrimes Exp $";
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#endif /* not lint */
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/*
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* ++Copyright++ 1986,1994
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* -
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* Copyright (c) 1986,1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* -
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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* -
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* --Copyright--
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*/
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/**************************************************************************/
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/* simple monitoring of named behavior */
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/* dumps a bunch of values into a well-known file */
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/**************************************************************************/
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <arpa/inet.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <errno.h>
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#include "named.h"
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#include "tree.h"
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static u_long typestats[T_ANY+1];
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static const char *typenames[T_ANY+1] = {
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/* 5 types per line */
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"Unknown", "A", "NS", "invalid(MD)", "invalid(MF)",
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"CNAME", "SOA", "MB", "MG", "MR",
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"NULL", "WKS", "PTR", "HINFO", "MINFO",
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"MX", "TXT", "RP", "AFSDB", "X25",
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"ISDN", "RT", "NSAP", "NSAP_PTR", "SIG",
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"KEY", "PX", "invalid(GPOS)", "AAAA", "LOC",
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0, 0, 0, 0, 0,
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0, 0, 0, 0, 0,
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/* 20 per line */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 100 */
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"UINFO", "UID", "GID", "UNSPEC", 0, 0, 0, 0, 0, 0,
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/* 110 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 120 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 200 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 240 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 250 */
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0, 0, "AXFR", "MAILB", "MAILA", "ANY"
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};
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static void nameserStats __P((FILE *));
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void
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ns_stats()
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{
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time_t timenow = time(NULL);
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register FILE *f;
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register int i;
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syslog(LOG_NOTICE, "dumping nameserver stats\n");
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if (!(f = fopen(statsfile, "a"))) {
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syslog(LOG_NOTICE, "cannot open stat file, \"%s\"\n",
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statsfile);
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return;
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}
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fprintf(f, "+++ Statistics Dump +++ (%ld) %s",
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(long)timenow, ctime(&timenow));
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fprintf(f, "%ld\ttime since boot (secs)\n",
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(long)(timenow - boottime));
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fprintf(f, "%ld\ttime since reset (secs)\n",
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(long)(timenow - resettime));
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#ifdef DMALLOC
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/* malloc statistics */
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dmallocstats(f);
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#endif
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/* query type statistics */
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fprintf(f, "%lu\tUnknown query types\n", (u_long)typestats[0]);
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for(i=1; i < T_ANY+1; i++)
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if (typestats[i])
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if (typenames[i])
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fprintf(f, "%lu\t%s queries\n",
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(u_long)typestats[i], typenames[i]);
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else
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fprintf(f, "%lu\ttype %d queries\n",
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(u_long)typestats[i], i);
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/* name server statistics */
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nameserStats(f);
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fprintf(f, "--- Statistics Dump --- (%ld) %s",
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(long)timenow, ctime(&timenow));
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(void) my_fclose(f);
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syslog(LOG_NOTICE, "done dumping nameserver stats\n");
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}
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void
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qtypeIncr(qtype)
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int qtype;
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{
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if (qtype < T_A || qtype > T_ANY)
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qtype = 0; /* bad type */
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typestats[qtype]++;
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}
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static tree *nameserTree;
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static int nameserInit;
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#ifdef STATS
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static FILE *nameserStatsFile;
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static u_long globalStats[nssLast];
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static const char *statNames[nssLast] = {
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"RQ", /* sent us a query */
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"RR", /* sent us an answer */
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"RIQ", /* sent us an inverse query */
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"RNXD", /* sent us a negative response */
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"RFwdQ", /* sent us a query we had to fwd */
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"RFwdR", /* sent us a response we had to fwd */
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"RDupQ", /* sent us a retry */
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"RDupR", /* sent us an extra answer */
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"RFail", /* sent us a SERVFAIL */
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"RFErr", /* sent us a FORMERR */
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"RErr", /* sent us some other error */
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"RTCP", /* sent us a query using TCP */
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"RAXFR", /* sent us an AXFR */
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"RLame", /* sent us a lame delegation */
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"ROpts", /* sent us some IP options */
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"SSysQ", /* sent them a sysquery */
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"SAns", /* sent them an answer */
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"SFwdQ", /* fwdd a query to them */
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"SFwdR", /* fwdd a response to them */
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"SDupQ", /* sent them a retry */
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"SFail", /* sent them a SERVFAIL */
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"SFErr", /* sent them a FORMERR */
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"SErr", /* sent failed (in sendto) */
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#ifdef XSTATS
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"RNotNsQ", /* received from remote port != ns_port */
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"SNaAns", /* sent them a non autoritative answer */
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"SNXD", /* sent them a negative response */
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#endif
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};
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#endif /*STATS*/
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static int
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nameserCompar(t1, t2)
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const tree_t t1, t2;
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{
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u_int32_t a1 = ntohl(((struct nameser *)t1)->addr.s_addr),
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a2 = ntohl(((struct nameser *)t2)->addr.s_addr);
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if (a1 < a2)
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return (-1);
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else if (a1 > a2)
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return (1);
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else
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return (0);
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}
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struct nameser *
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nameserFind(addr, flags)
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struct in_addr addr;
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int flags;
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{
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struct nameser dummy;
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struct nameser *ns;
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if (!nameserInit) {
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tree_init(&nameserTree);
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nameserInit++;
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}
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dummy.addr = addr;
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ns = (struct nameser *)tree_srch(&nameserTree, nameserCompar,
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(tree_t)&dummy);
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if (!ns && (flags & NS_F_INSERT)) {
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ns = (struct nameser *)malloc(sizeof(struct nameser));
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if (!ns) {
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nomem: if (!haveComplained("nameserFind complaint", ""))
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syslog(LOG_NOTICE,
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"nameserFind: malloc failed; %m");
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return (NULL);
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}
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memset(ns, 0, sizeof(struct nameser));
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ns->addr = addr;
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if (!tree_add(&nameserTree, nameserCompar, (tree_t)ns, NULL)) {
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int save = errno;
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free(ns);
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errno = save;
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goto nomem;
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}
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}
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return (ns);
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}
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void
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nameserIncr(addr, which)
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struct in_addr addr;
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enum nameserStats which;
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{
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#ifdef STATS
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struct nameser *ns = nameserFind(addr, NS_F_INSERT);
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if ((int)which < (int)nssLast) {
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if (ns)
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ns->stats[(int)which]++;
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globalStats[(int)which]++;
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} else {
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syslog(LOG_DEBUG, "nameserIncr([%d], %d): bad 'which'",
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inet_ntoa(addr), (int)which);
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}
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#endif /*STATS*/
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}
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#ifdef STATS
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static void
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nameserStatsOut(f, stats)
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FILE *f;
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u_long stats[];
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{
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int i;
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const char *pre = "\t";
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for (i = 0; i < (int)nssLast; i++) {
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fprintf(f, "%s%lu", pre, (u_long)stats[i]);
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pre = ((i+1) % 5) ? " " : " ";
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}
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fputc('\n', f);
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}
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static void
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nameserStatsHdr(f)
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FILE *f;
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{
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int i;
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const char *pre = "\t";
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fprintf(f, "(Legend)\n");
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for (i = 0; i < (int)nssLast; i++) {
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fprintf(f, "%s%s", pre,
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statNames[i] ? statNames[i] : "");
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pre = ((i+1) % 5) ? "\t" : "\n\t";
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}
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fputc('\n', f);
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}
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static int
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nameserStatsTravUAR(t)
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tree_t t;
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{
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struct nameser *ns = (struct nameser *)t;
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fprintf(nameserStatsFile, "[%s]\n", /* : rtt %u */
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inet_ntoa(ns->addr) /*, ns->rtt*/ );
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nameserStatsOut(nameserStatsFile, ns->stats);
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return (1);
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}
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#endif /*STATS*/
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static void
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nameserStats(f)
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FILE *f;
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{
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#ifndef STATS
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fprintf(f, "<<No nameserver statistics in this server>>\n");
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#else
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nameserStatsFile = f;
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fprintf(f, "++ Name Server Statistics ++\n");
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nameserStatsHdr(f);
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fprintf(f, "(Global)\n");
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nameserStatsOut(f, globalStats);
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tree_trav(&nameserTree, nameserStatsTravUAR);
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fprintf(f, "-- Name Server Statistics --\n");
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nameserStatsFile = NULL;
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#endif /*STATS*/
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}
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#ifdef XSTATS
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/* Benoit Grange, log minimal statistics, called from ns_maint */
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void
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ns_logstats()
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{
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char buffer[1024];
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char buffer2[32], header[64];
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time_t timenow = time(NULL);
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int i;
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#ifdef HAVE_GETRUSAGE
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# define tv_float(tv) ((tv).tv_sec + ((tv).tv_usec / 1000000.0))
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struct rusage usage, childu;
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getrusage(RUSAGE_SELF, &usage);
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getrusage(RUSAGE_CHILDREN, &childu);
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sprintf(buffer, "CPU=%gu/%gs CHILDCPU=%gu/%gs",
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tv_float(usage.ru_utime), tv_float(usage.ru_stime),
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tv_float(childu.ru_utime), tv_float(childu.ru_stime));
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syslog(LOG_INFO, "USAGE %lu %lu %s", timenow, boottime, buffer);
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# undef tv_float
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#endif
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sprintf(header, "NSTATS %lu %lu", timenow, boottime);
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strcpy(buffer, header);
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for (i = 0; i < T_ANY+1; i++) {
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if (typestats[i]) {
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if (typenames[i])
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sprintf(buffer2, " %s=%lu",
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typenames[i], typestats[i]);
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else
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sprintf(buffer2, " %d=%lu", i, typestats[i]);
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if (strlen(buffer) + strlen(buffer2) >
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sizeof(buffer) - 1) {
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syslog(LOG_INFO, buffer);
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strcpy(buffer, header);
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}
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strcat(buffer, buffer2);
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}
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}
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syslog(LOG_INFO, buffer);
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sprintf(header, "XSTATS %lu %lu", (u_long)timenow, (u_long)boottime);
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strcpy(buffer, header);
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for (i = 0; i < (int)nssLast; i++) {
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sprintf(buffer2, " %s=%lu",
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statNames[i]?statNames[i]:"?", (u_long)globalStats[i]);
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if (strlen(buffer) + strlen(buffer2) > sizeof(buffer) - 1) {
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syslog(LOG_INFO, buffer);
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strcpy(buffer, header);
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}
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strcat(buffer, buffer2);
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}
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syslog(LOG_INFO, buffer);
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}
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#endif /*XSTATS*/
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