pdns/ixfrdist-stats.hh

   1 /*
   2  * This file is part of PowerDNS or dnsdist.
   3  * Copyright -- PowerDNS.COM B.V. and its contributors
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * In addition, for the avoidance of any doubt, permission is granted to
  10  * link this program with OpenSSL and to (re)distribute the binaries
  11  * produced as the result of such linking.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22 #pragma once
  23 #include <atomic>
  24 #include <map>
  25 #include <string>
  26
  27 #include "dns.hh"
  28 #include "dnsname.hh"
  29 #include "pdnsexception.hh"
  30
  31 class ixfrdistStats {
  32   public:
  33     ixfrdistStats() {
  34       progStats.startTime = time(nullptr);
  35     }
  36
  37     std::string getStats();
  38
  39     void setSOASerial(const DNSName& d, const uint32_t serial) {
  40       auto stat = getRegisteredDomain(d);
  41       stat->second.currentSOA = serial;
  42       stat->second.haveZone = true;
  43     }
  44     void incrementSOAChecks(const DNSName& d, const uint64_t amount = 1) {
  45       getRegisteredDomain(d)->second.numSOAChecks += amount;
  46     }
  47     void incrementSOAChecksFailed(const DNSName& d, const uint64_t amount = 1) {
  48       getRegisteredDomain(d)->second.numSOAChecksFailed += amount;
  49     }
  50     void incrementSOAinQueries(const DNSName& d, const uint64_t amount = 1) {
  51       getRegisteredDomain(d)->second.numSOAinQueries += amount;
  52     }
  53     void incrementAXFRinQueries(const DNSName& d, const uint64_t amount = 1) {
  54       getRegisteredDomain(d)->second.numAXFRinQueries += amount;
  55     }
  56     void incrementIXFRinQueries(const DNSName& d, const uint64_t amount = 1) {
  57       getRegisteredDomain(d)->second.numIXFRinQueries += amount;
  58     }
  59     void incrementAXFRFailures(const DNSName& d, const uint64_t amount = 1) {
  60       getRegisteredDomain(d)->second.numAXFRFailures += amount;
  61     }
  62     void incrementIXFRFailures(const DNSName& d, const uint64_t amount = 1) {
  63       getRegisteredDomain(d)->second.numIXFRFailures += amount;
  64     }
  65     void registerDomain(const DNSName& d) {
  66       domainStats[d].haveZone = false;
  67     }
  68
  69     void incrementUnknownDomainInQueries(const DNSName& /* d */)
  70     { // the name is ignored. It would be great to report it, but we don't want to blow up Prometheus
  71       progStats.unknownDomainInQueries += 1;
  72     }
  73
  74     void incrementNotImplemented(uint8_t opcode)
  75     {
  76       notimpStats.at(opcode) ++;
  77     }
  78
  79   private:
  80     class perDomainStat {
  81       public:
  82         bool                  haveZone;
  83         std::atomic<uint32_t> currentSOA{0}; // NOTE: this will wrongly be zero for unavailable zones
  84
  85         std::atomic<uint32_t> numSOAChecks{0};
  86         std::atomic<uint32_t> numSOAChecksFailed{0};
  87
  88         std::atomic<uint64_t> numSOAinQueries{0};
  89         std::atomic<uint64_t> numAXFRinQueries{0};
  90         std::atomic<uint64_t> numIXFRinQueries{0};
  91
  92         std::atomic<uint64_t> numAXFRFailures{0};
  93         std::atomic<uint64_t> numIXFRFailures{0};
  94     };
  95     class programStats {
  96       public:
  97         time_t startTime;
  98         std::atomic<uint32_t> unknownDomainInQueries{0};
  99     };
 100
 101     std::map<DNSName, perDomainStat> domainStats;
 102     std::array<std::atomic<uint64_t>, 16> notimpStats{};
 103     programStats progStats;
 104
 105     std::map<DNSName, perDomainStat>::iterator getRegisteredDomain(const DNSName& d) {
 106       auto ret = domainStats.find(d);
 107       if (ret == domainStats.end()) {
 108         throw PDNSException("Domain '" + d.toLogString() + "' not defined in the statistics map");
 109       }
 110       return ret;
 111     };
 112 };
 113
 114 extern string doGetStats();