Bitcoin Core  23.99.0
P2P Digital Currency
netaddress.h
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1 // Copyright (c) 2009-2021 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 
5 #ifndef BITCOIN_NETADDRESS_H
6 #define BITCOIN_NETADDRESS_H
7 
8 #if defined(HAVE_CONFIG_H)
10 #endif
11 
12 #include <compat.h>
13 #include <crypto/siphash.h>
14 #include <prevector.h>
15 #include <random.h>
16 #include <serialize.h>
17 #include <tinyformat.h>
18 #include <util/strencodings.h>
19 #include <util/string.h>
20 
21 #include <array>
22 #include <cstdint>
23 #include <ios>
24 #include <string>
25 #include <vector>
26 
33 static constexpr int ADDRV2_FORMAT = 0x20000000;
34 
44 enum Network {
47 
50 
53 
56 
59 
62 
66 
69 };
70 
73 static const std::array<uint8_t, 12> IPV4_IN_IPV6_PREFIX{
74  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF};
75 
80 static const std::array<uint8_t, 6> TORV2_IN_IPV6_PREFIX{
81  0xFD, 0x87, 0xD8, 0x7E, 0xEB, 0x43};
82 
88 static const std::array<uint8_t, 6> INTERNAL_IN_IPV6_PREFIX{
89  0xFD, 0x6B, 0x88, 0xC0, 0x87, 0x24 // 0xFD + sha256("bitcoin")[0:5].
90 };
91 
93 static constexpr size_t ADDR_IPV4_SIZE = 4;
94 
96 static constexpr size_t ADDR_IPV6_SIZE = 16;
97 
100 static constexpr size_t ADDR_TORV3_SIZE = 32;
101 
103 static constexpr size_t ADDR_I2P_SIZE = 32;
104 
106 static constexpr size_t ADDR_CJDNS_SIZE = 16;
107 
109 static constexpr size_t ADDR_INTERNAL_SIZE = 10;
110 
112 static constexpr uint16_t I2P_SAM31_PORT{0};
113 
117 class CNetAddr
118 {
119 protected:
125 
130 
135  uint32_t m_scope_id{0};
136 
137 public:
138  CNetAddr();
139  explicit CNetAddr(const struct in_addr& ipv4Addr);
140  void SetIP(const CNetAddr& ip);
141 
149 
150  bool SetInternal(const std::string& name);
151 
160  bool SetSpecial(const std::string& addr);
161 
162  bool IsBindAny() const; // INADDR_ANY equivalent
163  bool IsIPv4() const; // IPv4 mapped address (::FFFF:0:0/96, 0.0.0.0/0)
164  bool IsIPv6() const; // IPv6 address (not mapped IPv4, not Tor)
165  bool IsRFC1918() const; // IPv4 private networks (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12)
166  bool IsRFC2544() const; // IPv4 inter-network communications (198.18.0.0/15)
167  bool IsRFC6598() const; // IPv4 ISP-level NAT (100.64.0.0/10)
168  bool IsRFC5737() const; // IPv4 documentation addresses (192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24)
169  bool IsRFC3849() const; // IPv6 documentation address (2001:0DB8::/32)
170  bool IsRFC3927() const; // IPv4 autoconfig (169.254.0.0/16)
171  bool IsRFC3964() const; // IPv6 6to4 tunnelling (2002::/16)
172  bool IsRFC4193() const; // IPv6 unique local (FC00::/7)
173  bool IsRFC4380() const; // IPv6 Teredo tunnelling (2001::/32)
174  bool IsRFC4843() const; // IPv6 ORCHID (deprecated) (2001:10::/28)
175  bool IsRFC7343() const; // IPv6 ORCHIDv2 (2001:20::/28)
176  bool IsRFC4862() const; // IPv6 autoconfig (FE80::/64)
177  bool IsRFC6052() const; // IPv6 well-known prefix for IPv4-embedded address (64:FF9B::/96)
178  bool IsRFC6145() const; // IPv6 IPv4-translated address (::FFFF:0:0:0/96) (actually defined in RFC2765)
179  bool IsHeNet() const; // IPv6 Hurricane Electric - https://he.net (2001:0470::/36)
180  bool IsTor() const;
181  bool IsI2P() const;
182  bool IsCJDNS() const;
183  bool IsLocal() const;
184  bool IsRoutable() const;
185  bool IsInternal() const;
186  bool IsValid() const;
187 
191  bool IsAddrV1Compatible() const;
192 
193  enum Network GetNetwork() const;
194  std::string ToString() const;
195  std::string ToStringIP() const;
196  bool GetInAddr(struct in_addr* pipv4Addr) const;
197  Network GetNetClass() const;
198 
200  uint32_t GetLinkedIPv4() const;
202  bool HasLinkedIPv4() const;
203 
204  std::vector<unsigned char> GetAddrBytes() const;
205  int GetReachabilityFrom(const CNetAddr* paddrPartner = nullptr) const;
206 
207  explicit CNetAddr(const struct in6_addr& pipv6Addr, const uint32_t scope = 0);
208  bool GetIn6Addr(struct in6_addr* pipv6Addr) const;
209 
210  friend bool operator==(const CNetAddr& a, const CNetAddr& b);
211  friend bool operator!=(const CNetAddr& a, const CNetAddr& b) { return !(a == b); }
212  friend bool operator<(const CNetAddr& a, const CNetAddr& b);
213 
217  bool IsRelayable() const
218  {
219  return IsIPv4() || IsIPv6() || IsTor() || IsI2P() || IsCJDNS();
220  }
221 
225  template <typename Stream>
226  void Serialize(Stream& s) const
227  {
228  if (s.GetVersion() & ADDRV2_FORMAT) {
230  } else {
232  }
233  }
234 
238  template <typename Stream>
239  void Unserialize(Stream& s)
240  {
241  if (s.GetVersion() & ADDRV2_FORMAT) {
243  } else {
245  }
246  }
247 
248  friend class CSubNet;
249 
250 private:
258  bool SetTor(const std::string& addr);
259 
267  bool SetI2P(const std::string& addr);
268 
272  enum BIP155Network : uint8_t {
273  IPV4 = 1,
274  IPV6 = 2,
275  TORV2 = 3,
276  TORV3 = 4,
277  I2P = 5,
278  CJDNS = 6,
279  };
280 
284  static constexpr size_t V1_SERIALIZATION_SIZE = ADDR_IPV6_SIZE;
285 
291  static constexpr size_t MAX_ADDRV2_SIZE = 512;
292 
299 
307  bool SetNetFromBIP155Network(uint8_t possible_bip155_net, size_t address_size);
308 
312  void SerializeV1Array(uint8_t (&arr)[V1_SERIALIZATION_SIZE]) const
313  {
314  size_t prefix_size;
315 
316  switch (m_net) {
317  case NET_IPV6:
318  assert(m_addr.size() == sizeof(arr));
319  memcpy(arr, m_addr.data(), m_addr.size());
320  return;
321  case NET_IPV4:
322  prefix_size = sizeof(IPV4_IN_IPV6_PREFIX);
323  assert(prefix_size + m_addr.size() == sizeof(arr));
324  memcpy(arr, IPV4_IN_IPV6_PREFIX.data(), prefix_size);
325  memcpy(arr + prefix_size, m_addr.data(), m_addr.size());
326  return;
327  case NET_INTERNAL:
328  prefix_size = sizeof(INTERNAL_IN_IPV6_PREFIX);
329  assert(prefix_size + m_addr.size() == sizeof(arr));
330  memcpy(arr, INTERNAL_IN_IPV6_PREFIX.data(), prefix_size);
331  memcpy(arr + prefix_size, m_addr.data(), m_addr.size());
332  return;
333  case NET_ONION:
334  case NET_I2P:
335  case NET_CJDNS:
336  break;
337  case NET_UNROUTABLE:
338  case NET_MAX:
339  assert(false);
340  } // no default case, so the compiler can warn about missing cases
341 
342  // Serialize ONION, I2P and CJDNS as all-zeros.
343  memset(arr, 0x0, V1_SERIALIZATION_SIZE);
344  }
345 
349  template <typename Stream>
350  void SerializeV1Stream(Stream& s) const
351  {
352  uint8_t serialized[V1_SERIALIZATION_SIZE];
353 
354  SerializeV1Array(serialized);
355 
356  s << serialized;
357  }
358 
362  template <typename Stream>
363  void SerializeV2Stream(Stream& s) const
364  {
365  if (IsInternal()) {
366  // Serialize NET_INTERNAL as embedded in IPv6. We need to
367  // serialize such addresses from addrman.
368  s << static_cast<uint8_t>(BIP155Network::IPV6);
371  return;
372  }
373 
374  s << static_cast<uint8_t>(GetBIP155Network());
375  s << m_addr;
376  }
377 
388  {
389  // Use SetLegacyIPv6() so that m_net is set correctly. For example
390  // ::FFFF:0102:0304 should be set as m_net=NET_IPV4 (1.2.3.4).
391  SetLegacyIPv6(arr);
392  }
393 
397  template <typename Stream>
398  void UnserializeV1Stream(Stream& s)
399  {
400  uint8_t serialized[V1_SERIALIZATION_SIZE];
401 
402  s >> serialized;
403 
404  UnserializeV1Array(serialized);
405  }
406 
410  template <typename Stream>
411  void UnserializeV2Stream(Stream& s)
412  {
413  uint8_t bip155_net;
414  s >> bip155_net;
415 
416  size_t address_size;
417  s >> COMPACTSIZE(address_size);
418 
419  if (address_size > MAX_ADDRV2_SIZE) {
420  throw std::ios_base::failure(strprintf(
421  "Address too long: %u > %u", address_size, MAX_ADDRV2_SIZE));
422  }
423 
424  m_scope_id = 0;
425 
426  if (SetNetFromBIP155Network(bip155_net, address_size)) {
427  m_addr.resize(address_size);
428  s >> Span{m_addr};
429 
430  if (m_net != NET_IPV6) {
431  return;
432  }
433 
434  // Do some special checks on IPv6 addresses.
435 
436  // Recognize NET_INTERNAL embedded in IPv6, such addresses are not
437  // gossiped but could be coming from addrman, when unserializing from
438  // disk.
441  memmove(m_addr.data(), m_addr.data() + INTERNAL_IN_IPV6_PREFIX.size(),
444  return;
445  }
446 
449  return;
450  }
451 
452  // IPv4 and TORv2 are not supposed to be embedded in IPv6 (like in V1
453  // encoding). Unserialize as !IsValid(), thus ignoring them.
454  } else {
455  // If we receive an unknown BIP155 network id (from the future?) then
456  // ignore the address - unserialize as !IsValid().
457  s.ignore(address_size);
458  }
459 
460  // Mimic a default-constructed CNetAddr object which is !IsValid() and thus
461  // will not be gossiped, but continue reading next addresses from the stream.
462  m_net = NET_IPV6;
464  }
465 };
466 
467 class CSubNet
468 {
469 protected:
473  uint8_t netmask[16];
475  bool valid;
476 
477  bool SanityCheck() const;
478 
479 public:
483  CSubNet();
484 
492  CSubNet(const CNetAddr& addr, uint8_t mask);
493 
501  CSubNet(const CNetAddr& addr, const CNetAddr& mask);
502 
507  explicit CSubNet(const CNetAddr& addr);
508 
509  bool Match(const CNetAddr& addr) const;
510 
511  std::string ToString() const;
512  bool IsValid() const;
513 
514  friend bool operator==(const CSubNet& a, const CSubNet& b);
515  friend bool operator!=(const CSubNet& a, const CSubNet& b) { return !(a == b); }
516  friend bool operator<(const CSubNet& a, const CSubNet& b);
517 };
518 
520 class CService : public CNetAddr
521 {
522 protected:
523  uint16_t port; // host order
524 
525 public:
526  CService();
527  CService(const CNetAddr& ip, uint16_t port);
528  CService(const struct in_addr& ipv4Addr, uint16_t port);
529  explicit CService(const struct sockaddr_in& addr);
530  uint16_t GetPort() const;
531  bool GetSockAddr(struct sockaddr* paddr, socklen_t* addrlen) const;
532  bool SetSockAddr(const struct sockaddr* paddr);
533  friend bool operator==(const CService& a, const CService& b);
534  friend bool operator!=(const CService& a, const CService& b) { return !(a == b); }
535  friend bool operator<(const CService& a, const CService& b);
536  std::vector<unsigned char> GetKey() const;
537  std::string ToString() const;
538  std::string ToStringPort() const;
539  std::string ToStringIPPort() const;
540 
541  CService(const struct in6_addr& ipv6Addr, uint16_t port);
542  explicit CService(const struct sockaddr_in6& addr);
543 
545  {
546  READWRITEAS(CNetAddr, obj);
548  }
549 
550  friend class CServiceHash;
551  friend CService MaybeFlipIPv6toCJDNS(const CService& service);
552 };
553 
555 {
556 public:
558  : m_salt_k0{GetRand<uint64_t>()},
559  m_salt_k1{GetRand<uint64_t>()}
560  {
561  }
562 
563  CServiceHash(uint64_t salt_k0, uint64_t salt_k1) : m_salt_k0{salt_k0}, m_salt_k1{salt_k1} {}
564 
565  size_t operator()(const CService& a) const noexcept
566  {
567  CSipHasher hasher(m_salt_k0, m_salt_k1);
568  hasher.Write(a.m_net);
569  hasher.Write(a.port);
570  hasher.Write(a.m_addr.data(), a.m_addr.size());
571  return static_cast<size_t>(hasher.Finalize());
572  }
573 
574 private:
575  const uint64_t m_salt_k0;
576  const uint64_t m_salt_k1;
577 };
578 
579 #endif // BITCOIN_NETADDRESS_H
CNetAddr::IsIPv6
bool IsIPv6() const
Definition: netaddress.cpp:314
ADDRV2_FORMAT
static constexpr int ADDRV2_FORMAT
A flag that is ORed into the protocol version to designate that addresses should be serialized in (un...
Definition: netaddress.h:33
CService
A combination of a network address (CNetAddr) and a (TCP) port.
Definition: netaddress.h:520
CService::GetSockAddr
bool GetSockAddr(struct sockaddr *paddr, socklen_t *addrlen) const
Obtain the IPv4/6 socket address this represents.
Definition: netaddress.cpp:878
CService::operator!=
friend bool operator!=(const CService &a, const CService &b)
Definition: netaddress.h:534
I2P_SAM31_PORT
static constexpr uint16_t I2P_SAM31_PORT
SAM 3.1 and earlier do not support specifying ports and force the port to 0.
Definition: netaddress.h:112
NET_UNROUTABLE
@ NET_UNROUTABLE
Addresses from these networks are not publicly routable on the global Internet.
Definition: netaddress.h:46
assert
assert(!tx.IsCoinBase())
NET_IPV4
@ NET_IPV4
IPv4.
Definition: netaddress.h:49
CNetAddr::SetI2P
bool SetI2P(const std::string &addr)
Parse an I2P address and set this object to it.
Definition: netaddress.cpp:264
CNetAddr::SetNetFromBIP155Network
bool SetNetFromBIP155Network(uint8_t possible_bip155_net, size_t address_size)
Set m_net from the provided BIP155 network id and size after validation.
Definition: netaddress.cpp:45
CNetAddr::m_addr
prevector< ADDR_IPV6_SIZE, uint8_t > m_addr
Raw representation of the network address.
Definition: netaddress.h:124
CNetAddr::GetAddrBytes
std::vector< unsigned char > GetAddrBytes() const
Definition: netaddress.cpp:719
CNetAddr::SetLegacyIPv6
void SetLegacyIPv6(Span< const uint8_t > ipv6)
Set from a legacy IPv6 address.
Definition: netaddress.cpp:134
CNetAddr::GetNetClass
Network GetNetClass() const
Definition: netaddress.cpp:701
NET_INTERNAL
@ NET_INTERNAL
A set of addresses that represent the hash of a string or FQDN.
Definition: netaddress.h:65
TORV2_IN_IPV6_PREFIX
static const std::array< uint8_t, 6 > TORV2_IN_IPV6_PREFIX
Prefix of an IPv6 address when it contains an embedded TORv2 address.
Definition: netaddress.h:80
CNetAddr::IsRFC3964
bool IsRFC3964() const
Definition: netaddress.cpp:351
CNetAddr::GetIn6Addr
bool GetIn6Addr(struct in6_addr *pipv6Addr) const
Try to get our IPv6 (or CJDNS) address.
Definition: netaddress.cpp:669
CNetAddr::GetReachabilityFrom
int GetReachabilityFrom(const CNetAddr *paddrPartner=nullptr) const
Calculates a metric for how reachable (*this) is from a given partner.
Definition: netaddress.cpp:743
string.h
CNetAddr
Network address.
Definition: netaddress.h:117
NET_MAX
@ NET_MAX
Dummy value to indicate the number of NET_* constants.
Definition: netaddress.h:68
HasPrefix
bool HasPrefix(const T1 &obj, const std::array< uint8_t, PREFIX_LEN > &prefix)
Check whether a container begins with the given prefix.
Definition: string.h:126
CNetAddr::IsRFC2544
bool IsRFC2544() const
Definition: netaddress.cpp:324
CNetAddr::IsRFC4862
bool IsRFC4862() const
Definition: netaddress.cpp:368
CNetAddr::ToString
std::string ToString() const
Definition: netaddress.cpp:625
CNetAddr::UnserializeV1Array
void UnserializeV1Array(uint8_t(&arr)[V1_SERIALIZATION_SIZE])
Unserialize from a pre-ADDRv2/BIP155 format from an array.
Definition: netaddress.h:387
CNetAddr::SetTor
bool SetTor(const std::string &addr)
Parse a Tor address and set this object to it.
Definition: netaddress.cpp:225
CSubNet::valid
bool valid
Is this value valid? (only used to signal parse errors)
Definition: netaddress.h:475
bitcoin-config.h
CSubNet::operator!=
friend bool operator!=(const CSubNet &a, const CSubNet &b)
Definition: netaddress.h:515
CustomUintFormatter
Serialization wrapper class for custom integers and enums.
Definition: serialize.h:465
CNetAddr::UnserializeV1Stream
void UnserializeV1Stream(Stream &s)
Unserialize from a pre-ADDRv2/BIP155 format from a stream.
Definition: netaddress.h:398
READWRITEAS
#define READWRITEAS(type, obj)
Definition: serialize.h:141
Network
Network
A network type.
Definition: netaddress.h:44
CNetAddr::IsRelayable
bool IsRelayable() const
Whether this address should be relayed to other peers even if we can't reach it ourselves.
Definition: netaddress.h:217
CNetAddr::IsRFC6145
bool IsRFC6145() const
Definition: netaddress.cpp:379
CNetAddr::IsInternal
bool IsInternal() const
Definition: netaddress.cpp:494
CService::ToStringIPPort
std::string ToStringIPPort() const
Definition: netaddress.cpp:924
CSipHasher
SipHash-2-4.
Definition: siphash.h:13
CNetAddr::MAX_ADDRV2_SIZE
static constexpr size_t MAX_ADDRV2_SIZE
Maximum size of an address as defined in BIP155 (in bytes).
Definition: netaddress.h:291
CSubNet::Match
bool Match(const CNetAddr &addr) const
Definition: netaddress.cpp:1043
CNetAddr::IsBindAny
bool IsBindAny() const
Definition: netaddress.cpp:304
CNetAddr::GetInAddr
bool GetInAddr(struct in_addr *pipv4Addr) const
Try to get our IPv4 address.
Definition: netaddress.cpp:650
CNetAddr::GetBIP155Network
BIP155Network GetBIP155Network() const
Get the BIP155 network id of this address.
Definition: netaddress.cpp:23
CNetAddr::ToStringIP
std::string ToStringIP() const
Definition: netaddress.cpp:602
tinyformat.h
CNetAddr::Unserialize
void Unserialize(Stream &s)
Unserialize from a stream.
Definition: netaddress.h:239
IPV6
@ IPV6
Definition: netbase.cpp:281
CNetAddr::IsIPv4
bool IsIPv4() const
Definition: netaddress.cpp:312
Span
A Span is an object that can refer to a contiguous sequence of objects.
Definition: span.h:96
CServiceHash::CServiceHash
CServiceHash(uint64_t salt_k0, uint64_t salt_k1)
Definition: netaddress.h:563
ADDR_INTERNAL_SIZE
static constexpr size_t ADDR_INTERNAL_SIZE
Size of "internal" (NET_INTERNAL) address (in bytes).
Definition: netaddress.h:109
strencodings.h
CNetAddr::IsI2P
bool IsI2P() const
Check whether this object represents an I2P address.
Definition: netaddress.cpp:412
NET_I2P
@ NET_I2P
I2P.
Definition: netaddress.h:58
siphash.h
CNetAddr::GetNetwork
enum Network GetNetwork() const
Definition: netaddress.cpp:518
random.h
CService::ToString
std::string ToString() const
Definition: netaddress.cpp:933
CNetAddr::m_scope_id
uint32_t m_scope_id
Scope id if scoped/link-local IPV6 address.
Definition: netaddress.h:135
CSubNet::network
CNetAddr network
Network (base) address.
Definition: netaddress.h:471
ADDR_TORV3_SIZE
static constexpr size_t ADDR_TORV3_SIZE
Size of TORv3 address (in bytes).
Definition: netaddress.h:100
CNetAddr::SetSpecial
bool SetSpecial(const std::string &addr)
Parse a Tor or I2P address and set this object to it.
Definition: netaddress.cpp:208
ip
static CService ip(uint32_t i)
Definition: denialofservice_tests.cpp:28
CService::SetSockAddr
bool SetSockAddr(const struct sockaddr *paddr)
Definition: netaddress.cpp:837
CSipHasher::Finalize
uint64_t Finalize() const
Compute the 64-bit SipHash-2-4 of the data written so far.
Definition: siphash.cpp:76
CNetAddr::UnserializeV2Stream
void UnserializeV2Stream(Stream &s)
Unserialize from a ADDRv2 / BIP155 format.
Definition: netaddress.h:411
CNetAddr::IsRFC3849
bool IsRFC3849() const
Definition: netaddress.cpp:346
compat.h
CNetAddr::IsRoutable
bool IsRoutable() const
Definition: netaddress.cpp:484
CServiceHash
Definition: netaddress.h:554
CNetAddr::SerializeV1Stream
void SerializeV1Stream(Stream &s) const
Serialize in pre-ADDRv2/BIP155 format to a stream.
Definition: netaddress.h:350
CService::SERIALIZE_METHODS
SERIALIZE_METHODS(CService, obj)
Definition: netaddress.h:544
CService::ToStringPort
std::string ToStringPort() const
Definition: netaddress.cpp:919
INTERNAL_IN_IPV6_PREFIX
static const std::array< uint8_t, 6 > INTERNAL_IN_IPV6_PREFIX
Prefix of an IPv6 address when it contains an embedded "internal" address.
Definition: netaddress.h:88
CNetAddr::CJDNS
@ CJDNS
Definition: netaddress.h:278
CNetAddr::SerializeV1Array
void SerializeV1Array(uint8_t(&arr)[V1_SERIALIZATION_SIZE]) const
Serialize in pre-ADDRv2/BIP155 format to an array.
Definition: netaddress.h:312
CNetAddr::IsRFC6052
bool IsRFC6052() const
Definition: netaddress.cpp:356
CSubNet::operator<
friend bool operator<(const CSubNet &a, const CSubNet &b)
Definition: netaddress.cpp:1137
CNetAddr::IsValid
bool IsValid() const
Definition: netaddress.cpp:445
CNetAddr::IsRFC1918
bool IsRFC1918() const
Definition: netaddress.cpp:316
CNetAddr::IsRFC6598
bool IsRFC6598() const
Definition: netaddress.cpp:334
CSubNet
Definition: netaddress.h:467
CNetAddr::IsHeNet
bool IsHeNet() const
Definition: netaddress.cpp:398
CNetAddr::IsCJDNS
bool IsCJDNS() const
Check whether this object represents a CJDNS address.
Definition: netaddress.cpp:417
CNetAddr::operator!=
friend bool operator!=(const CNetAddr &a, const CNetAddr &b)
Definition: netaddress.h:211
CServiceHash::m_salt_k0
const uint64_t m_salt_k0
Definition: netaddress.h:575
READWRITE
#define READWRITE(...)
Definition: serialize.h:140
CNetAddr::IsRFC5737
bool IsRFC5737() const
Definition: netaddress.cpp:339
CNetAddr::operator==
friend bool operator==(const CNetAddr &a, const CNetAddr &b)
Definition: netaddress.cpp:630
IPV4_IN_IPV6_PREFIX
static const std::array< uint8_t, 12 > IPV4_IN_IPV6_PREFIX
Prefix of an IPv6 address when it contains an embedded IPv4 address.
Definition: netaddress.h:73
CService::GetPort
uint16_t GetPort() const
Definition: netaddress.cpp:851
CServiceHash::m_salt_k1
const uint64_t m_salt_k1
Definition: netaddress.h:576
CNetAddr::BIP155Network
BIP155Network
BIP155 network ids recognized by this software.
Definition: netaddress.h:272
CNetAddr::I2P
@ I2P
Definition: netaddress.h:277
name
const char * name
Definition: rest.cpp:46
prevector::resize
void resize(size_type new_size)
Definition: prevector.h:318
CSubNet::netmask
uint8_t netmask[16]
Netmask, in network byte order.
Definition: netaddress.h:473
CService::operator==
friend bool operator==(const CService &a, const CService &b)
Definition: netaddress.cpp:856
prevector< ADDR_IPV6_SIZE, uint8_t >
prevector::assign
void assign(size_type n, const T &val)
Definition: prevector.h:220
strprintf
#define strprintf
Format arguments and return the string or write to given std::ostream (see tinyformat::format doc for...
Definition: tinyformat.h:1164
CNetAddr::SerializeV2Stream
void SerializeV2Stream(Stream &s) const
Serialize as ADDRv2 / BIP155.
Definition: netaddress.h:363
ADDR_IPV6_SIZE
static constexpr size_t ADDR_IPV6_SIZE
Size of IPv6 address (in bytes).
Definition: netaddress.h:96
ADDR_IPV4_SIZE
static constexpr size_t ADDR_IPV4_SIZE
Size of IPv4 address (in bytes).
Definition: netaddress.h:93
CSubNet::operator==
friend bool operator==(const CSubNet &a, const CSubNet &b)
Definition: netaddress.cpp:1132
CNetAddr::GetLinkedIPv4
uint32_t GetLinkedIPv4() const
For IPv4, mapped IPv4, SIIT translated IPv4, Teredo, 6to4 tunneled addresses, return the relevant IPv...
Definition: netaddress.cpp:684
CSubNet::ToString
std::string ToString() const
Definition: netaddress.cpp:1071
CNetAddr::operator<
friend bool operator<(const CNetAddr &a, const CNetAddr &b)
Definition: netaddress.cpp:635
ADDR_I2P_SIZE
static constexpr size_t ADDR_I2P_SIZE
Size of I2P address (in bytes).
Definition: netaddress.h:103
CServiceHash::CServiceHash
CServiceHash()
Definition: netaddress.h:557
CService::port
uint16_t port
Definition: netaddress.h:523
prevector::data
value_type * data()
Definition: prevector.h:520
CNetAddr::IPV6
@ IPV6
Definition: netaddress.h:274
NET_ONION
@ NET_ONION
TOR (v2 or v3)
Definition: netaddress.h:55
CNetAddr::IsRFC4193
bool IsRFC4193() const
Definition: netaddress.cpp:374
CNetAddr::IsRFC7343
bool IsRFC7343() const
Definition: netaddress.cpp:392
prevector::size
size_type size() const
Definition: prevector.h:284
CNetAddr::IsTor
bool IsTor() const
Check whether this object represents a TOR address.
Definition: netaddress.cpp:407
CNetAddr::TORV3
@ TORV3
Definition: netaddress.h:276
CServiceHash::operator()
size_t operator()(const CService &a) const noexcept
Definition: netaddress.h:565
ADDR_CJDNS_SIZE
static constexpr size_t ADDR_CJDNS_SIZE
Size of CJDNS address (in bytes).
Definition: netaddress.h:106
CSubNet::IsValid
bool IsValid() const
Definition: netaddress.cpp:1104
serialize.h
NET_IPV6
@ NET_IPV6
IPv6.
Definition: netaddress.h:52
CNetAddr::SetInternal
bool SetInternal(const std::string &name)
Create an "internal" address that represents a name or FQDN.
Definition: netaddress.cpp:169
CNetAddr::m_net
Network m_net
Network to which this address belongs.
Definition: netaddress.h:129
COMPACTSIZE
#define COMPACTSIZE(obj)
Definition: serialize.h:437
prevector.h
CNetAddr::CNetAddr
CNetAddr()
Construct an unspecified IPv6 network address (::/128).
NET_CJDNS
@ NET_CJDNS
CJDNS.
Definition: netaddress.h:61
CNetAddr::IsAddrV1Compatible
bool IsAddrV1Compatible() const
Check if the current object can be serialized in pre-ADDRv2/BIP155 format.
Definition: netaddress.cpp:499
CNetAddr::IsRFC3927
bool IsRFC3927() const
Definition: netaddress.cpp:329
CNetAddr::HasLinkedIPv4
bool HasLinkedIPv4() const
Whether this address has a linked IPv4 address (see GetLinkedIPv4()).
Definition: netaddress.cpp:679
CNetAddr::IsRFC4843
bool IsRFC4843() const
Definition: netaddress.cpp:386
CNetAddr::IPV4
@ IPV4
Definition: netaddress.h:273
CNetAddr::V1_SERIALIZATION_SIZE
static constexpr size_t V1_SERIALIZATION_SIZE
Size of CNetAddr when serialized as ADDRv1 (pre-BIP155) (in bytes).
Definition: netaddress.h:284
Using
static Wrapper< Formatter, T & > Using(T &&t)
Cause serialization/deserialization of an object to be done using a specified formatter class.
Definition: serialize.h:433
CSubNet::CSubNet
CSubNet()
Construct an invalid subnet (empty, Match() always returns false).
Definition: netaddress.cpp:938
CNetAddr::Serialize
void Serialize(Stream &s) const
Serialize to a stream.
Definition: netaddress.h:226
CNetAddr::IsLocal
bool IsLocal() const
Definition: netaddress.cpp:419
CNetAddr::TORV2
@ TORV2
Definition: netaddress.h:275
CNetAddr::IsRFC4380
bool IsRFC4380() const
Definition: netaddress.cpp:363
CService::CService
CService()
Definition: netaddress.cpp:811
CNetAddr::SetIP
void SetIP(const CNetAddr &ip)
Definition: netaddress.cpp:103
CService::MaybeFlipIPv6toCJDNS
friend CService MaybeFlipIPv6toCJDNS(const CService &service)
If an IPv6 address belongs to the address range used by the CJDNS network and the CJDNS network is re...
Definition: net.cpp:277
CSipHasher::Write
CSipHasher & Write(uint64_t data)
Hash a 64-bit integer worth of data It is treated as if this was the little-endian interpretation of ...
Definition: siphash.cpp:28
CService::GetKey
std::vector< unsigned char > GetKey() const
Definition: netaddress.cpp:911
CService::operator<
friend bool operator<(const CService &a, const CService &b)
Definition: netaddress.cpp:861
CSubNet::SanityCheck
bool SanityCheck() const
Definition: netaddress.cpp:1109