Tony FinchandTony Finch
0d353704fb
This should have no functional effects. The message size stats are specified by RSSAC002 so it's best not to mess around with how they appear in the statschannel. But it's worth changing the implementation to use general-purpose histograms, to reduce code size and benefit from sharded counters.
548 lines
16 KiB
C
548 lines
16 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#pragma once
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/*! \file dns/stats.h */
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#include <inttypes.h>
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#include <isc/histo.h>
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#include <dns/types.h>
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/*%
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* Statistics counters. Used as isc_statscounter_t values.
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*/
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enum {
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/*%
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* Resolver statistics counters.
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*/
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dns_resstatscounter_queryv4 = 0,
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dns_resstatscounter_queryv6 = 1,
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dns_resstatscounter_responsev4 = 2,
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dns_resstatscounter_responsev6 = 3,
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dns_resstatscounter_nxdomain = 4,
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dns_resstatscounter_servfail = 5,
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dns_resstatscounter_formerr = 6,
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dns_resstatscounter_othererror = 7,
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dns_resstatscounter_edns0fail = 8,
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dns_resstatscounter_mismatch = 9,
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dns_resstatscounter_truncated = 10,
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dns_resstatscounter_lame = 11,
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dns_resstatscounter_retry = 12,
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dns_resstatscounter_gluefetchv4 = 13,
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dns_resstatscounter_gluefetchv6 = 14,
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dns_resstatscounter_gluefetchv4fail = 15,
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dns_resstatscounter_gluefetchv6fail = 16,
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dns_resstatscounter_val = 17,
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dns_resstatscounter_valsuccess = 18,
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dns_resstatscounter_valnegsuccess = 19,
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dns_resstatscounter_valfail = 20,
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dns_resstatscounter_dispabort = 21,
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dns_resstatscounter_dispsockfail = 22,
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dns_resstatscounter_querytimeout = 23,
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dns_resstatscounter_queryrtt0 = 24,
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dns_resstatscounter_queryrtt1 = 25,
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dns_resstatscounter_queryrtt2 = 26,
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dns_resstatscounter_queryrtt3 = 27,
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dns_resstatscounter_queryrtt4 = 28,
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dns_resstatscounter_queryrtt5 = 29,
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dns_resstatscounter_nfetch = 30,
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dns_resstatscounter_disprequdp = 31,
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dns_resstatscounter_dispreqtcp = 32,
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dns_resstatscounter_buckets = 33,
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dns_resstatscounter_refused = 34,
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dns_resstatscounter_cookienew = 35,
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dns_resstatscounter_cookieout = 36,
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dns_resstatscounter_cookiein = 37,
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dns_resstatscounter_cookieok = 38,
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dns_resstatscounter_badvers = 39,
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dns_resstatscounter_badcookie = 40,
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dns_resstatscounter_zonequota = 41,
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dns_resstatscounter_serverquota = 42,
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dns_resstatscounter_nextitem = 43,
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dns_resstatscounter_priming = 44,
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dns_resstatscounter_max = 45,
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/*
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* DNSSEC stats.
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*/
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dns_dnssecstats_asis = 0,
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dns_dnssecstats_downcase = 1,
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dns_dnssecstats_wildcard = 2,
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dns_dnssecstats_fail = 3,
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dns_dnssecstats_max = 4,
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/*%
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* Zone statistics counters.
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*/
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dns_zonestatscounter_notifyoutv4 = 0,
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dns_zonestatscounter_notifyoutv6 = 1,
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dns_zonestatscounter_notifyinv4 = 2,
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dns_zonestatscounter_notifyinv6 = 3,
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dns_zonestatscounter_notifyrej = 4,
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dns_zonestatscounter_soaoutv4 = 5,
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dns_zonestatscounter_soaoutv6 = 6,
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dns_zonestatscounter_axfrreqv4 = 7,
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dns_zonestatscounter_axfrreqv6 = 8,
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dns_zonestatscounter_ixfrreqv4 = 9,
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dns_zonestatscounter_ixfrreqv6 = 10,
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dns_zonestatscounter_xfrsuccess = 11,
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dns_zonestatscounter_xfrfail = 12,
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dns_zonestatscounter_max = 13,
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/*
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* Adb statistics values.
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*/
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dns_adbstats_nentries = 0,
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dns_adbstats_entriescnt = 1,
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dns_adbstats_nnames = 2,
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dns_adbstats_namescnt = 3,
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dns_adbstats_max = 4,
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/*
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* Cache statistics values.
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*/
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dns_cachestatscounter_hits = 1,
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dns_cachestatscounter_misses = 2,
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dns_cachestatscounter_queryhits = 3,
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dns_cachestatscounter_querymisses = 4,
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dns_cachestatscounter_deletelru = 5,
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dns_cachestatscounter_deletettl = 6,
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dns_cachestatscounter_coveringnsec = 7,
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dns_cachestatscounter_max = 8,
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/*%
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* Query statistics counters (obsolete).
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*/
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dns_statscounter_success = 0, /*%< Successful lookup */
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dns_statscounter_referral = 1, /*%< Referral result */
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dns_statscounter_nxrrset = 2, /*%< NXRRSET result */
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dns_statscounter_nxdomain = 3, /*%< NXDOMAIN result */
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dns_statscounter_recursion = 4, /*%< Recursion was used */
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dns_statscounter_failure = 5, /*%< Some other failure */
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dns_statscounter_duplicate = 6, /*%< Duplicate query */
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dns_statscounter_dropped = 7, /*%< Duplicate query (dropped) */
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/*%
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* DNSTAP statistics counters.
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*/
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dns_dnstapcounter_success = 0,
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dns_dnstapcounter_drop = 1,
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dns_dnstapcounter_max = 2,
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/*
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* Glue cache statistics counters.
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*/
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dns_gluecachestatscounter_hits_present = 0,
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dns_gluecachestatscounter_hits_absent = 1,
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dns_gluecachestatscounter_inserts_present = 2,
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dns_gluecachestatscounter_inserts_absent = 3,
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dns_gluecachestatscounter_max = 4,
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};
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/*%
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* Traffic size statistics, according to RSSAC002 section 2.4
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* https://www.icann.org/en/system/files/files/rssac-002-measurements-root-20nov14-en.pdf
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*
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* The RSSAC002 linear bucketing does not directly match the log-linear
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* bucketing of an `isc_histo_t`, so we need to adjust some parameters
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* to fit.
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*
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* To map a message size to an `isc_histo_t`, first divide by
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* DNS_SIZEHISTO_QUANTUM so that `isc_histo_inc()` is presented with
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* one value per RSSAC002 bucket.
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*
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* Configure the `isc_histo_t` with large enough `sigbits` that its
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* one-value-per-bucket range (its `UNITBUCKETS`) covers the range
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* required by RSSAC002.
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*/
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#define DNS_SIZEHISTO_QUANTUM 16
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#define DNS_SIZEHISTO_MAXIN (288 / DNS_SIZEHISTO_QUANTUM)
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#define DNS_SIZEHISTO_MAXOUT (4096 / DNS_SIZEHISTO_QUANTUM)
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#define DNS_SIZEHISTO_SIGBITSIN 4
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#define DNS_SIZEHISTO_SIGBITSOUT 7
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#define DNS_SIZEHISTO_BUCKETIN(size) \
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ISC_MIN(size / DNS_SIZEHISTO_QUANTUM, DNS_SIZEHISTO_MAXIN)
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#define DNS_SIZEHISTO_BUCKETOUT(size) \
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ISC_MIN(size / DNS_SIZEHISTO_QUANTUM, DNS_SIZEHISTO_MAXOUT)
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STATIC_ASSERT(DNS_SIZEHISTO_MAXIN <=
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ISC_HISTO_UNITBUCKETS(DNS_SIZEHISTO_SIGBITSIN),
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"must be enough histogram buckets for RSSAC002");
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STATIC_ASSERT(DNS_SIZEHISTO_MAXOUT <=
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ISC_HISTO_UNITBUCKETS(DNS_SIZEHISTO_SIGBITSOUT),
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"must be enough histogram buckets for RSSAC002");
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/*
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* For consistency with other stats counters
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*/
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enum {
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dns_sizecounter_in_max = DNS_SIZEHISTO_MAXIN + 1,
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dns_sizecounter_out_max = DNS_SIZEHISTO_MAXOUT + 1,
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};
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/*%
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* Attributes for statistics counters of RRset and Rdatatype types.
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*
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* _OTHERTYPE
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* The rdata type is not explicitly supported and the corresponding counter
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* is counted for other such types, too. When this attribute is set,
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* the base type is of no use.
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*
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* _NXRRSET
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* RRset type counters only. Indicates the RRset is non existent.
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*
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* _NXDOMAIN
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* RRset type counters only. Indicates a non existent name. When this
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* attribute is set, the base type is of no use.
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*
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* _STALE
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* RRset type counters only. This indicates a record that is stale
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* but may still be served.
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*
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* _ANCIENT
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* RRset type counters only. This indicates a record that is marked for
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* removal.
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*/
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#define DNS_RDATASTATSTYPE_ATTR_OTHERTYPE 0x0001
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#define DNS_RDATASTATSTYPE_ATTR_NXRRSET 0x0002
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#define DNS_RDATASTATSTYPE_ATTR_NXDOMAIN 0x0004
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#define DNS_RDATASTATSTYPE_ATTR_STALE 0x0008
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#define DNS_RDATASTATSTYPE_ATTR_ANCIENT 0x0010
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/*%<
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* Conversion macros among dns_rdatatype_t, attributes and isc_statscounter_t.
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*/
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#define DNS_RDATASTATSTYPE_BASE(type) ((dns_rdatatype_t)((type)&0xFFFF))
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#define DNS_RDATASTATSTYPE_ATTR(type) ((type) >> 16)
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#define DNS_RDATASTATSTYPE_VALUE(b, a) (((a) << 16) | (b))
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/*%
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* Types of DNSSEC sign statistics operations.
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*/
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typedef enum {
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dns_dnssecsignstats_sign = 1,
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dns_dnssecsignstats_refresh = 2
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} dnssecsignstats_type_t;
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/*%<
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* Types of dump callbacks.
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*/
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typedef void (*dns_generalstats_dumper_t)(isc_statscounter_t, uint64_t, void *);
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typedef void (*dns_rdatatypestats_dumper_t)(dns_rdatastatstype_t, uint64_t,
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void *);
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typedef void (*dns_dnssecsignstats_dumper_t)(uint32_t, uint64_t, void *);
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typedef void (*dns_opcodestats_dumper_t)(dns_opcode_t, uint64_t, void *);
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typedef void (*dns_rcodestats_dumper_t)(dns_rcode_t, uint64_t, void *);
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ISC_LANG_BEGINDECLS
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isc_result_t
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dns_generalstats_create(isc_mem_t *mctx, dns_stats_t **statsp, int ncounters);
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/*%<
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* Create a statistics counter structure of general type. It counts a general
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* set of counters indexed by an ID between 0 and ncounters -1.
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* This function is obsolete. A more general function, isc_stats_create(),
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* should be used.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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isc_result_t
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dns_rdatatypestats_create(isc_mem_t *mctx, dns_stats_t **statsp);
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/*%<
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* Create a statistics counter structure per rdatatype.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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isc_result_t
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dns_rdatasetstats_create(isc_mem_t *mctx, dns_stats_t **statsp);
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/*%<
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* Create a statistics counter structure per RRset.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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isc_result_t
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dns_opcodestats_create(isc_mem_t *mctx, dns_stats_t **statsp);
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/*%<
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* Create a statistics counter structure per opcode.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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isc_result_t
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dns_rcodestats_create(isc_mem_t *mctx, dns_stats_t **statsp);
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/*%<
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* Create a statistics counter structure per assigned rcode.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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isc_result_t
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dns_dnssecsignstats_create(isc_mem_t *mctx, dns_stats_t **statsp);
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/*%<
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* Create a statistics counter structure per assigned DNSKEY id.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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void
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dns_stats_attach(dns_stats_t *stats, dns_stats_t **statsp);
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/*%<
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* Attach to a statistics set.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL
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*/
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void
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dns_stats_detach(dns_stats_t **statsp);
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/*%<
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* Detaches from the statistics set.
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*
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* Requires:
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*\li 'statsp' != NULL and '*statsp' is a valid dns_stats_t.
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*/
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void
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dns_generalstats_increment(dns_stats_t *stats, isc_statscounter_t counter);
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/*%<
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* Increment the counter-th counter of stats. This function is obsolete.
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* A more general function, isc_stats_increment(), should be used.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
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*
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*\li counter is less than the maximum available ID for the stats specified
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* on creation.
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*/
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void
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dns_rdatatypestats_increment(dns_stats_t *stats, dns_rdatatype_t type);
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/*%<
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* Increment the statistics counter for 'type'.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_rdatatypestats_create().
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*/
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void
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dns_rdatasetstats_increment(dns_stats_t *stats, dns_rdatastatstype_t rrsettype);
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/*%<
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* Increment the statistics counter for 'rrsettype'.
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*
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* Note: if 'rrsettype' has the _STALE attribute set the corresponding
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* non-stale counter will be decremented.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_rdatasetstats_create().
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*/
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void
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dns_rdatasetstats_decrement(dns_stats_t *stats, dns_rdatastatstype_t rrsettype);
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/*%<
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* Decrement the statistics counter for 'rrsettype'.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_rdatasetstats_create().
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*/
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void
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dns_opcodestats_increment(dns_stats_t *stats, dns_opcode_t code);
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/*%<
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* Increment the statistics counter for 'code'.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_opcodestats_create().
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*/
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void
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dns_rcodestats_increment(dns_stats_t *stats, dns_opcode_t code);
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/*%<
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* Increment the statistics counter for 'code'.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_rcodestats_create().
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*/
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void
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dns_dnssecsignstats_increment(dns_stats_t *stats, dns_keytag_t id, uint8_t alg,
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dnssecsignstats_type_t operation);
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/*%<
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* Increment the statistics counter for the DNSKEY 'id' with algorithm 'alg'.
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* The 'operation' determines what counter is incremented.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_dnssecsignstats_create().
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*/
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void
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dns_dnssecsignstats_clear(dns_stats_t *stats, dns_keytag_t id, uint8_t alg);
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/*%<
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* Clear the statistics counter for the DNSKEY 'id' with algorithm 'alg'.
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*
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* Requires:
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*\li 'stats' is a valid dns_stats_t created by dns_dnssecsignstats_create().
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*/
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void
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dns_generalstats_dump(dns_stats_t *stats, dns_generalstats_dumper_t dump_fn,
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void *arg, unsigned int options);
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/*%<
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* Dump the current statistics counters in a specified way. For each counter
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* in stats, dump_fn is called with its current value and the given argument
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* arg. By default counters that have a value of 0 is skipped; if options has
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* the ISC_STATSDUMP_VERBOSE flag, even such counters are dumped.
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*
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* This function is obsolete. A more general function, isc_stats_dump(),
|
|
* should be used.
|
|
*
|
|
* Requires:
|
|
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
|
|
*/
|
|
|
|
void
|
|
dns_rdatatypestats_dump(dns_stats_t *stats, dns_rdatatypestats_dumper_t dump_fn,
|
|
void *arg, unsigned int options);
|
|
/*%<
|
|
* Dump the current statistics counters in a specified way. For each counter
|
|
* in stats, dump_fn is called with the corresponding type in the form of
|
|
* dns_rdatastatstype_t, the current counter value and the given argument
|
|
* arg. By default counters that have a value of 0 is skipped; if options has
|
|
* the ISC_STATSDUMP_VERBOSE flag, even such counters are dumped.
|
|
*
|
|
* Requires:
|
|
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
|
|
*/
|
|
|
|
void
|
|
dns_rdatasetstats_dump(dns_stats_t *stats, dns_rdatatypestats_dumper_t dump_fn,
|
|
void *arg, unsigned int options);
|
|
/*%<
|
|
* Dump the current statistics counters in a specified way. For each counter
|
|
* in stats, dump_fn is called with the corresponding type in the form of
|
|
* dns_rdatastatstype_t, the current counter value and the given argument
|
|
* arg. By default counters that have a value of 0 is skipped; if options has
|
|
* the ISC_STATSDUMP_VERBOSE flag, even such counters are dumped.
|
|
*
|
|
* Requires:
|
|
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
|
|
*/
|
|
|
|
void
|
|
dns_dnssecsignstats_dump(dns_stats_t *stats, dnssecsignstats_type_t operation,
|
|
dns_dnssecsignstats_dumper_t dump_fn, void *arg,
|
|
unsigned int options);
|
|
/*%<
|
|
* Dump the current statistics counters in a specified way. For each counter
|
|
* in stats, dump_fn is called with the corresponding type in the form of
|
|
* dns_rdatastatstype_t, the current counter value and the given argument
|
|
* arg. By default counters that have a value of 0 is skipped; if options has
|
|
* the ISC_STATSDUMP_VERBOSE flag, even such counters are dumped.
|
|
*
|
|
* Requires:
|
|
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
|
|
*/
|
|
|
|
void
|
|
dns_opcodestats_dump(dns_stats_t *stats, dns_opcodestats_dumper_t dump_fn,
|
|
void *arg, unsigned int options);
|
|
/*%<
|
|
* Dump the current statistics counters in a specified way. For each counter
|
|
* in stats, dump_fn is called with the corresponding opcode, the current
|
|
* counter value and the given argument arg. By default counters that have a
|
|
* value of 0 is skipped; if options has the ISC_STATSDUMP_VERBOSE flag, even
|
|
* such counters are dumped.
|
|
*
|
|
* Requires:
|
|
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
|
|
*/
|
|
|
|
void
|
|
dns_rcodestats_dump(dns_stats_t *stats, dns_rcodestats_dumper_t dump_fn,
|
|
void *arg, unsigned int options);
|
|
/*%<
|
|
* Dump the current statistics counters in a specified way. For each counter
|
|
* in stats, dump_fn is called with the corresponding rcode, the current
|
|
* counter value and the given argument arg. By default counters that have a
|
|
* value of 0 is skipped; if options has the ISC_STATSDUMP_VERBOSE flag, even
|
|
* such counters are dumped.
|
|
*
|
|
* Requires:
|
|
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
|
|
*/
|
|
|
|
ISC_LANG_ENDDECLS
|