pdns/dnsrecords.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 #ifndef PDNS_DNSRECORDS_HH
  23 #define PDNS_DNSRECORDS_HH
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include "config.h"
  27 #endif
  28
  29 #include "dnsparser.hh"
  30 #include "dnswriter.hh"
  31 #include "rcpgenerator.hh"
  32 #include <set>
  33 #include <bitset>
  34 #include "namespaces.hh"
  35 #include "iputils.hh"
  36
  37 #define includeboilerplate(RNAME)   RNAME##RecordContent(const DNSRecord& dr, PacketReader& pr); \
  38   RNAME##RecordContent(const string& zoneData);                                                  \
  39   static void report(void);                                                                      \
  40   static void unreport(void);                                                                    \
  41   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);          \
  42   static std::shared_ptr<DNSRecordContent> make(const string& zonedata);                         \
  43   string getZoneRepresentation(bool noDot=false) const override;                                 \
  44   void toPacket(DNSPacketWriter& pw) override;                                                   \
  45   uint16_t getType() const override { return QType::RNAME; }                                   \
  46   template<class Convertor> void xfrPacket(Convertor& conv, bool noDot=false);
  47
  48 class NAPTRRecordContent : public DNSRecordContent
  49 {
  50 public:
  51   NAPTRRecordContent(uint16_t order, uint16_t preference, string flags, string services, string regexp, DNSName replacement);
  52
  53   includeboilerplate(NAPTR)
  54   template<class Convertor> void xfrRecordContent(Convertor& conv);
  55 private:
  56   uint16_t d_order, d_preference;
  57   string d_flags, d_services, d_regexp;
  58   DNSName d_replacement;
  59 };
  60
  61
  62 class ARecordContent : public DNSRecordContent
  63 {
  64 public:
  65   explicit ARecordContent(const ComboAddress& ca);
  66   explicit ARecordContent(uint32_t ip);
  67   includeboilerplate(A)
  68   void doRecordCheck(const DNSRecord& dr);
  69   ComboAddress getCA(int port=0) const;
  70   bool operator==(const DNSRecordContent& rhs) const override
  71   {
  72     if(typeid(*this) != typeid(rhs))
  73       return false;
  74     return d_ip == dynamic_cast<const ARecordContent&>(rhs).d_ip;
  75   }
  76 private:
  77   uint32_t d_ip;
  78 };
  79
  80 class AAAARecordContent : public DNSRecordContent
  81 {
  82 public:
  83   AAAARecordContent(std::string &val);
  84   explicit AAAARecordContent(const ComboAddress& ca);
  85   includeboilerplate(AAAA)
  86   ComboAddress getCA(int port=0) const;
  87   bool operator==(const DNSRecordContent& rhs) const override
  88   {
  89     if(typeid(*this) != typeid(rhs))
  90       return false;
  91     return d_ip6 == dynamic_cast<const decltype(this)>(&rhs)->d_ip6;
  92   }
  93 private:
  94   string d_ip6; // why??
  95 };
  96
  97 class MXRecordContent : public DNSRecordContent
  98 {
  99 public:
 100   MXRecordContent(uint16_t preference, const DNSName& mxname);
 101
 102   includeboilerplate(MX)
 103
 104   uint16_t d_preference;
 105   DNSName d_mxname;
 106
 107   bool operator==(const DNSRecordContent& rhs) const override
 108   {
 109     if(typeid(*this) != typeid(rhs))
 110       return false;
 111     auto rrhs =dynamic_cast<const decltype(this)>(&rhs);
 112     return std::tie(d_preference, d_mxname) == std::tie(rrhs->d_preference, rrhs->d_mxname);
 113   }
 114
 115 };
 116
 117 class KXRecordContent : public DNSRecordContent
 118 {
 119 public:
 120   KXRecordContent(uint16_t preference, const DNSName& exchanger);
 121
 122   includeboilerplate(KX)
 123
 124 private:
 125   uint16_t d_preference;
 126   DNSName d_exchanger;
 127 };
 128
 129 class IPSECKEYRecordContent : public DNSRecordContent
 130 {
 131 public:
 132   IPSECKEYRecordContent(uint16_t preference, uint8_t gatewaytype, uint8_t algo, const DNSName& gateway, const string& publickey);
 133
 134   includeboilerplate(IPSECKEY)
 135
 136 private:
 137   uint32_t d_ip4;
 138   DNSName d_gateway;
 139   string d_publickey;
 140   string d_ip6;
 141   uint8_t d_preference, d_gatewaytype, d_algorithm;
 142 };
 143
 144 class DHCIDRecordContent : public DNSRecordContent
 145 {
 146 public:
 147   includeboilerplate(DHCID)
 148
 149 private:
 150   string d_content;
 151 };
 152
 153
 154 class SRVRecordContent : public DNSRecordContent
 155 {
 156 public:
 157   SRVRecordContent(uint16_t preference, uint16_t weight, uint16_t port, const DNSName& target);
 158
 159   includeboilerplate(SRV)
 160
 161   uint16_t d_weight, d_port;
 162   DNSName d_target;
 163   uint16_t d_preference;
 164 };
 165
 166 class TSIGRecordContent : public DNSRecordContent
 167 {
 168 public:
 169   includeboilerplate(TSIG)
 170   TSIGRecordContent() {}
 171
 172   uint16_t d_origID{0};
 173   uint16_t d_fudge{0};
 174
 175   DNSName d_algoName;
 176   string d_mac;
 177   string d_otherData;
 178   uint64_t d_time{0};
 179   //  uint16_t d_macSize;
 180   uint16_t d_eRcode{0};
 181   // uint16_t d_otherLen
 182 };
 183
 184
 185 class TXTRecordContent : public DNSRecordContent
 186 {
 187 public:
 188   includeboilerplate(TXT)
 189
 190   string d_text;
 191 };
 192
 193 #ifdef HAVE_LUA_RECORDS
 194 class LUARecordContent : public DNSRecordContent
 195 {
 196 public:
 197   includeboilerplate(LUA)
 198   string getCode() const;
 199   uint16_t d_type;
 200   string d_code;
 201 };
 202 #endif
 203
 204 class ENTRecordContent : public DNSRecordContent
 205 {
 206 public:
 207   includeboilerplate(ENT)
 208 };
 209
 210 class SPFRecordContent : public DNSRecordContent
 211 {
 212 public:
 213   includeboilerplate(SPF)
 214   const std::string& getText() const
 215   {
 216     return d_text;
 217   }
 218
 219 private:
 220   string d_text;
 221 };
 222
 223
 224 class NSRecordContent : public DNSRecordContent
 225 {
 226 public:
 227   includeboilerplate(NS)
 228   explicit NSRecordContent(const DNSName& content) : d_content(content){}
 229   const DNSName& getNS() const { return d_content; }
 230   bool operator==(const DNSRecordContent& rhs) const override
 231   {
 232     if(typeid(*this) != typeid(rhs))
 233       return false;
 234     auto rrhs =dynamic_cast<const decltype(this)>(&rhs);
 235     return d_content == rrhs->d_content;
 236   }
 237
 238 private:
 239   DNSName d_content;
 240 };
 241
 242 class PTRRecordContent : public DNSRecordContent
 243 {
 244 public:
 245   includeboilerplate(PTR)
 246   explicit PTRRecordContent(const DNSName& content) : d_content(content){}
 247   const DNSName& getContent() const { return d_content; }
 248 private:
 249   DNSName d_content;
 250 };
 251
 252 class CNAMERecordContent : public DNSRecordContent
 253 {
 254 public:
 255   includeboilerplate(CNAME)
 256   CNAMERecordContent(const DNSName& content) : d_content(content){}
 257   DNSName getTarget() const { return d_content; }
 258 private:
 259   DNSName d_content;
 260 };
 261
 262 class ALIASRecordContent : public DNSRecordContent
 263 {
 264 public:
 265   includeboilerplate(ALIAS)
 266
 267   DNSName d_content;
 268 };
 269
 270
 271 class DNAMERecordContent : public DNSRecordContent
 272 {
 273 public:
 274   includeboilerplate(DNAME)
 275   DNSName d_content;
 276 };
 277
 278
 279 class MBRecordContent : public DNSRecordContent
 280 {
 281 public:
 282   includeboilerplate(MB)
 283
 284 private:
 285   DNSName d_madname;
 286 };
 287
 288 class MGRecordContent : public DNSRecordContent
 289 {
 290 public:
 291   includeboilerplate(MG)
 292
 293 private:
 294   DNSName d_mgmname;
 295 };
 296
 297 class MRRecordContent : public DNSRecordContent
 298 {
 299 public:
 300   includeboilerplate(MR)
 301
 302 private:
 303   DNSName d_alias;
 304 };
 305
 306 class MINFORecordContent : public DNSRecordContent
 307 {
 308 public:
 309   includeboilerplate(MINFO)
 310
 311 private:
 312   DNSName d_rmailbx;
 313   DNSName d_emailbx;
 314 };
 315
 316 class OPTRecordContent : public DNSRecordContent
 317 {
 318 public:
 319   OPTRecordContent(){}
 320   includeboilerplate(OPT)
 321   void getData(vector<pair<uint16_t, string> > &opts);
 322 private:
 323   string d_data;
 324 };
 325
 326
 327 class HINFORecordContent : public DNSRecordContent
 328 {
 329 public:
 330   includeboilerplate(HINFO)
 331
 332 private:
 333   string d_cpu, d_host;
 334 };
 335
 336 class RPRecordContent : public DNSRecordContent
 337 {
 338 public:
 339   includeboilerplate(RP)
 340
 341 private:
 342   DNSName d_mbox, d_info;
 343 };
 344
 345
 346 class DNSKEYRecordContent : public DNSRecordContent
 347 {
 348 public:
 349   DNSKEYRecordContent();
 350   includeboilerplate(DNSKEY)
 351   uint16_t getTag() const;
 352   uint16_t getTag();
 353
 354   uint16_t d_flags{0};
 355   uint8_t d_protocol{0};
 356   uint8_t d_algorithm{0};
 357   string d_key;
 358   bool operator<(const DNSKEYRecordContent& rhs) const
 359   {
 360     return tie(d_flags, d_protocol, d_algorithm, d_key) <
 361       tie(rhs.d_flags, rhs.d_protocol, rhs.d_algorithm, rhs.d_key);
 362   }
 363 };
 364
 365 class CDNSKEYRecordContent : public DNSRecordContent
 366 {
 367 public:
 368   CDNSKEYRecordContent();
 369   includeboilerplate(CDNSKEY)
 370   uint16_t getTag();
 371
 372   uint16_t d_flags{0};
 373   uint8_t d_protocol{0};
 374   uint8_t d_algorithm{0};
 375   string d_key;
 376 };
 377
 378 class DSRecordContent : public DNSRecordContent
 379 {
 380 public:
 381   DSRecordContent();
 382   bool operator==(const DNSRecordContent& rhs) const override
 383   {
 384     if(typeid(*this) != typeid(rhs))
 385       return false;
 386     auto rrhs =dynamic_cast<const decltype(this)>(&rhs);
 387     return tie(d_tag, d_algorithm, d_digesttype, d_digest) ==
 388       tie(rrhs->d_tag, rrhs->d_algorithm, rrhs->d_digesttype, rrhs->d_digest);
 389   }
 390   bool operator<(const DSRecordContent& rhs) const
 391   {
 392     return tie(d_tag, d_algorithm, d_digesttype, d_digest) <
 393       tie(rhs.d_tag, rhs.d_algorithm, rhs.d_digesttype, rhs.d_digest);
 394   }
 395
 396   includeboilerplate(DS)
 397
 398   uint16_t d_tag{0};
 399   uint8_t d_algorithm{0}, d_digesttype{0};
 400   string d_digest;
 401 };
 402
 403 class CDSRecordContent : public DNSRecordContent
 404 {
 405 public:
 406   CDSRecordContent();
 407   includeboilerplate(CDS)
 408
 409   uint16_t d_tag{0};
 410   uint8_t d_algorithm{0}, d_digesttype{0};
 411   string d_digest;
 412 };
 413
 414 class DLVRecordContent : public DNSRecordContent
 415 {
 416 public:
 417   DLVRecordContent();
 418   includeboilerplate(DLV)
 419
 420   uint16_t d_tag{0};
 421   uint8_t d_algorithm{0}, d_digesttype{0};
 422   string d_digest;
 423 };
 424
 425
 426 class SSHFPRecordContent : public DNSRecordContent
 427 {
 428 public:
 429   includeboilerplate(SSHFP)
 430
 431 private:
 432   uint8_t d_algorithm, d_fptype;
 433   string d_fingerprint;
 434 };
 435
 436 class KEYRecordContent : public DNSRecordContent
 437 {
 438 public:
 439   includeboilerplate(KEY)
 440
 441 private:
 442   uint16_t d_flags;
 443   uint8_t d_protocol, d_algorithm;
 444   string d_certificate;
 445 };
 446
 447 class AFSDBRecordContent : public DNSRecordContent
 448 {
 449 public:
 450   includeboilerplate(AFSDB)
 451
 452 private:
 453   uint16_t d_subtype;
 454   DNSName d_hostname;
 455 };
 456
 457
 458 class CERTRecordContent : public DNSRecordContent
 459 {
 460 public:
 461   includeboilerplate(CERT)
 462
 463 private:
 464   uint16_t d_type, d_tag;
 465   string d_certificate;
 466   uint8_t d_algorithm;
 467 };
 468
 469 class TLSARecordContent : public DNSRecordContent
 470 {
 471 public:
 472   includeboilerplate(TLSA)
 473
 474 private:
 475   uint8_t d_certusage, d_selector, d_matchtype;
 476   string d_cert;
 477 };
 478
 479 class SMIMEARecordContent : public DNSRecordContent
 480 {
 481 public:
 482   includeboilerplate(SMIMEA)
 483
 484 private:
 485   uint8_t d_certusage, d_selector, d_matchtype;
 486   string d_cert;
 487 };
 488
 489 class OPENPGPKEYRecordContent : public DNSRecordContent
 490 {
 491 public:
 492   includeboilerplate(OPENPGPKEY)
 493
 494 private:
 495   string d_keyring;
 496 };
 497
 498
 499 class RRSIGRecordContent : public DNSRecordContent
 500 {
 501 public:
 502   RRSIGRecordContent();
 503   includeboilerplate(RRSIG)
 504
 505   uint16_t d_type{0};
 506   uint16_t d_tag{0};
 507   DNSName d_signer;
 508   string d_signature;
 509   uint32_t d_originalttl{0}, d_sigexpire{0}, d_siginception{0};
 510   uint8_t d_algorithm{0}, d_labels{0};
 511 };
 512
 513 //namespace {
 514   struct soatimes
 515   {
 516     uint32_t serial;
 517     uint32_t refresh;
 518     uint32_t retry;
 519     uint32_t expire;
 520     uint32_t minimum;
 521   };
 522 //}
 523
 524 class RKEYRecordContent : public DNSRecordContent
 525 {
 526 public:
 527   RKEYRecordContent();
 528   includeboilerplate(RKEY)
 529   uint16_t d_flags{0};
 530   uint8_t d_protocol{0}, d_algorithm{0};
 531   string d_key;
 532 };
 533
 534 class SOARecordContent : public DNSRecordContent
 535 {
 536 public:
 537   includeboilerplate(SOA)
 538   SOARecordContent(const DNSName& mname, const DNSName& rname, const struct soatimes& st);
 539
 540   DNSName d_mname;
 541   DNSName d_rname;
 542   struct soatimes d_st;
 543 };
 544
 545 class NSECBitmap
 546 {
 547 public:
 548   bool isSet(uint16_t type) const
 549   {
 550     if (d_bitset) {
 551       return d_bitset->test(type);
 552     }
 553     return d_set.count(type);
 554   }
 555   void set(uint16_t type)
 556   {
 557     if (!d_bitset) {
 558       if (d_set.size() >= 200) {
 559         migrateToBitSet();
 560       }
 561     }
 562     if (d_bitset) {
 563       d_bitset->set(type);
 564     }
 565     else {
 566       d_set.insert(type);
 567     }
 568   }
 569   size_t count() const
 570   {
 571     if (d_bitset) {
 572       return d_bitset->count();
 573     }
 574     else {
 575       return d_set.size();
 576     }
 577   }
 578
 579   void fromPacket(PacketReader& pr);
 580   void toPacket(DNSPacketWriter& pw);
 581   std::string getZoneRepresentation() const;
 582
 583   static constexpr size_t const nbTypes = 65536;
 584
 585 private:
 586
 587   void migrateToBitSet()
 588   {
 589     d_bitset = std::unique_ptr<std::bitset<nbTypes>>(new std::bitset<nbTypes>());
 590     for (const auto& type : d_set) {
 591       d_bitset->set(type);
 592     }
 593     d_set.clear();
 594   }
 595   /* using a dynamic set is very efficient for a small number of
 596      types covered (~200), but uses a lot of memory (up to 3MB)
 597      when there are a lot of them.
 598      So we start with the set, but allocate and switch to a bitset
 599      if the number of covered types increases a lot */
 600   std::unique_ptr<std::bitset<nbTypes>> d_bitset;
 601   std::set<uint16_t> d_set;
 602 };
 603
 604 class NSECRecordContent : public DNSRecordContent
 605 {
 606 public:
 607   static void report(void);
 608   NSECRecordContent()
 609   {}
 610   NSECRecordContent(const string& content, const string& zone=""); //FIXME400: DNSName& zone?
 611
 612   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);
 613   static std::shared_ptr<DNSRecordContent> make(const string& content);
 614   string getZoneRepresentation(bool noDot=false) const override;
 615   void toPacket(DNSPacketWriter& pw) override;
 616   uint16_t getType() const override
 617   {
 618     return QType::NSEC;
 619   }
 620   bool isSet(uint16_t type) const
 621   {
 622     return d_bitmap.isSet(type);
 623   }
 624   void set(uint16_t type)
 625   {
 626     d_bitmap.set(type);
 627   }
 628   size_t numberOfTypesSet() const
 629   {
 630     return d_bitmap.count();
 631   }
 632
 633   DNSName d_next;
 634 private:
 635   NSECBitmap d_bitmap;
 636 };
 637
 638 class NSEC3RecordContent : public DNSRecordContent
 639 {
 640 public:
 641   static void report(void);
 642   NSEC3RecordContent()
 643   {}
 644   NSEC3RecordContent(const string& content, const string& zone=""); //FIXME400: DNSName& zone?
 645
 646   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);
 647   static std::shared_ptr<DNSRecordContent> make(const string& content);
 648   string getZoneRepresentation(bool noDot=false) const override;
 649   void toPacket(DNSPacketWriter& pw) override;
 650
 651   uint8_t d_algorithm{0}, d_flags{0};
 652   uint16_t d_iterations{0};
 653   string d_salt;
 654   string d_nexthash;
 655
 656   uint16_t getType() const override
 657   {
 658     return QType::NSEC3;
 659   }
 660   bool isSet(uint16_t type) const
 661   {
 662     return d_bitmap.isSet(type);
 663   }
 664   void set(uint16_t type)
 665   {
 666     d_bitmap.set(type);
 667   }
 668   size_t numberOfTypesSet() const
 669   {
 670     return d_bitmap.count();
 671   }
 672
 673 private:
 674   NSECBitmap d_bitmap;
 675 };
 676
 677
 678 class NSEC3PARAMRecordContent : public DNSRecordContent
 679 {
 680 public:
 681   static void report(void);
 682   NSEC3PARAMRecordContent()
 683   {}
 684   NSEC3PARAMRecordContent(const string& content, const string& zone=""); // FIXME400: DNSName& zone?
 685
 686   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);
 687   static std::shared_ptr<DNSRecordContent> make(const string& content);
 688   string getZoneRepresentation(bool noDot=false) const override;
 689   void toPacket(DNSPacketWriter& pw) override;
 690
 691   uint16_t getType() const override
 692   {
 693     return QType::NSEC3PARAM;
 694   }
 695
 696
 697   uint8_t d_algorithm{0}, d_flags{0};
 698   uint16_t d_iterations{0};
 699   string d_salt;
 700 };
 701
 702
 703 class LOCRecordContent : public DNSRecordContent
 704 {
 705 public:
 706   static void report(void);
 707   LOCRecordContent()
 708   {}
 709   LOCRecordContent(const string& content, const string& zone="");
 710
 711   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);
 712   static std::shared_ptr<DNSRecordContent> make(const string& content);
 713   string getZoneRepresentation(bool noDot=false) const override;
 714   void toPacket(DNSPacketWriter& pw) override;
 715
 716   uint8_t d_version{0}, d_size{0}, d_horizpre{0}, d_vertpre{0};
 717   uint32_t d_latitude{0}, d_longitude{0}, d_altitude{0};
 718   uint16_t getType() const override
 719   {
 720     return QType::LOC;
 721   }
 722
 723 private:
 724 };
 725
 726 class EUI48RecordContent : public DNSRecordContent
 727 {
 728 public:
 729   EUI48RecordContent() {};
 730   static void report(void);
 731   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);
 732   static std::shared_ptr<DNSRecordContent> make(const string& zone); // FIXME400: DNSName& zone?
 733   string getZoneRepresentation(bool noDot=false) const override;
 734   void toPacket(DNSPacketWriter& pw) override;
 735   uint16_t getType() const override { return QType::EUI48; }
 736 private:
 737  // storage for the bytes
 738  uint8_t d_eui48[6];
 739 };
 740
 741 class EUI64RecordContent : public DNSRecordContent
 742 {
 743 public:
 744   EUI64RecordContent() {};
 745   static void report(void);
 746   static std::shared_ptr<DNSRecordContent> make(const DNSRecord &dr, PacketReader& pr);
 747   static std::shared_ptr<DNSRecordContent> make(const string& zone); // FIXME400: DNSName& zone?
 748   string getZoneRepresentation(bool noDot=false) const override;
 749   void toPacket(DNSPacketWriter& pw) override;
 750   uint16_t getType() const override { return QType::EUI64; }
 751 private:
 752  // storage for the bytes
 753  uint8_t d_eui64[8];
 754 };
 755
 756 class TKEYRecordContent : public DNSRecordContent
 757 {
 758 public:
 759   TKEYRecordContent();
 760   includeboilerplate(TKEY)
 761
 762   // storage for the bytes
 763   uint16_t d_othersize{0};
 764   uint16_t d_mode{0};
 765   uint32_t d_inception{0};
 766   uint32_t d_expiration{0};
 767
 768   DNSName d_algo;
 769   string d_key;
 770   string d_other;
 771
 772   uint16_t d_error{0};
 773   uint16_t d_keysize{0};
 774 private:
 775 };
 776
 777 class URIRecordContent : public DNSRecordContent {
 778   public:
 779     includeboilerplate(URI)
 780   private:
 781     uint16_t d_priority, d_weight;
 782     string d_target;
 783 };
 784
 785 class CAARecordContent : public DNSRecordContent {
 786   public:
 787     includeboilerplate(CAA)
 788   private:
 789     uint8_t d_flags;
 790     string d_tag, d_value;
 791 };
 792
 793 #define boilerplate(RNAME, RTYPE)                                                                         \
 794 std::shared_ptr<RNAME##RecordContent::DNSRecordContent> RNAME##RecordContent::make(const DNSRecord& dr, PacketReader& pr) \
 795 {                                                                                                  \
 796   return std::make_shared<RNAME##RecordContent>(dr, pr);                                           \
 797 }                                                                                                  \
 798                                                                                                    \
 799 RNAME##RecordContent::RNAME##RecordContent(const DNSRecord& dr, PacketReader& pr)                  \
 800 {                                                                                                  \
 801   doRecordCheck(dr);                                                                               \
 802   xfrPacket(pr);                                                                                   \
 803 }                                                                                                  \
 804                                                                                                    \
 805 std::shared_ptr<RNAME##RecordContent::DNSRecordContent> RNAME##RecordContent::make(const string& zonedata)         \
 806 {                                                                                                  \
 807   return std::make_shared<RNAME##RecordContent>(zonedata);                                         \
 808 }                                                                                                  \
 809                                                                                                    \
 810 void RNAME##RecordContent::toPacket(DNSPacketWriter& pw)                                           \
 811 {                                                                                                  \
 812   this->xfrPacket(pw);                                                                             \
 813 }                                                                                                  \
 814                                                                                                    \
 815 void RNAME##RecordContent::report(void)                                                            \
 816 {                                                                                                  \
 817   regist(1, RTYPE, &RNAME##RecordContent::make, &RNAME##RecordContent::make, #RNAME);              \
 818   regist(254, RTYPE, &RNAME##RecordContent::make, &RNAME##RecordContent::make, #RNAME);            \
 819 }                                                                                                  \
 820 void RNAME##RecordContent::unreport(void)                                                          \
 821 {                                                                                                  \
 822   unregist(1, RTYPE);                                                                              \
 823   unregist(254, RTYPE);                                                                            \
 824 }                                                                                                  \
 825                                                                                                    \
 826 RNAME##RecordContent::RNAME##RecordContent(const string& zoneData)                                 \
 827 {                                                                                                  \
 828   try {                                                                                            \
 829     RecordTextReader rtr(zoneData);                                                                \
 830     xfrPacket(rtr);                                                                                \
 831   }                                                                                                \
 832   catch(RecordTextException& rte) {                                                                \
 833     throw MOADNSException("Parsing record content (try 'pdnsutil check-zone'): "+string(rte.what()));  \
 834   }                                                                                                \
 835 }                                                                                                  \
 836                                                                                                    \
 837 string RNAME##RecordContent::getZoneRepresentation(bool noDot) const                               \
 838 {                                                                                                  \
 839   string ret;                                                                                      \
 840   RecordTextWriter rtw(ret, noDot);                                                                       \
 841   const_cast<RNAME##RecordContent*>(this)->xfrPacket(rtw);                                         \
 842   return ret;                                                                                      \
 843 }
 844
 845
 846 #define boilerplate_conv(RNAME, TYPE, CONV)                       \
 847 boilerplate(RNAME, TYPE)                                          \
 848 template<class Convertor>                                         \
 849 void RNAME##RecordContent::xfrPacket(Convertor& conv, bool noDot) \
 850 {                                                                 \
 851   CONV;                                                           \
 852   if (conv.eof() == false) throw MOADNSException("When parsing " #RNAME " trailing data was not parsed: '" + conv.getRemaining() + "'"); \
 853 }                                                                 \
 854
 855 struct EDNSOpts
 856 {
 857   enum zFlags { DNSSECOK=32768 };
 858   vector<pair<uint16_t, string> > d_options;
 859   uint16_t d_packetsize{0};
 860   uint16_t d_extFlags{0};
 861   uint8_t d_extRCode, d_version;
 862 };
 863 //! Convenience function that fills out EDNS0 options, and returns true if there are any
 864
 865 class MOADNSParser;
 866 bool getEDNSOpts(const MOADNSParser& mdp, EDNSOpts* eo);
 867 DNSRecord makeOpt(const uint16_t udpsize, const uint16_t extRCode, const uint16_t extFlags);
 868 void reportBasicTypes();
 869 void reportOtherTypes();
 870 void reportAllTypes();
 871 ComboAddress getAddr(const DNSRecord& dr, uint16_t defport=0);
 872 void checkHostnameCorrectness(const DNSResourceRecord& rr);
 873 #endif