A CService with information about it as peer. More...

#include <protocol.h>

Inheritance diagram for CAddress:

Collaboration diagram for CAddress:

Public Member Functions
	CAddress ()

	CAddress (CService ipIn, ServiceFlags nServicesIn)

	CAddress (CService ipIn, ServiceFlags nServicesIn, NodeSeconds time)

	SERIALIZE_METHODS (CAddress, obj)

Public Member Functions inherited from CService
	CService ()

	CService (const CNetAddr &ip, uint16_t port)

	CService (const struct in_addr &ipv4Addr, uint16_t port)

	CService (const struct sockaddr_in &addr)

uint16_t	GetPort () const

bool	GetSockAddr (struct sockaddr paddr, socklen_t addrlen) const
	Obtain the IPv4/6 socket address this represents.

bool	SetSockAddr (const struct sockaddr *paddr)

std::vector< uint8_t >	GetKey () const

std::string	ToString () const

std::string	ToStringPort () const

std::string	ToStringIPPort () const

	CService (const struct in6_addr &ipv6Addr, uint16_t port)

	CService (const struct sockaddr_in6 &addr)

	SERIALIZE_METHODS (CService, obj)

Public Member Functions inherited from CNetAddr
	CNetAddr ()
	Construct an unspecified IPv6 network address (::/128).

	CNetAddr (const struct in_addr &ipv4Addr)

void	SetIP (const CNetAddr &ip)

void	SetLegacyIPv6 (Span< const uint8_t > ipv6)
	Set from a legacy IPv6 address.

bool	SetInternal (const std::string &name)
	Create an "internal" address that represents a name or FQDN.

bool	SetSpecial (const std::string &addr)
	Parse a Tor or I2P address and set this object to it.

bool	IsBindAny () const

bool	IsIPv4 () const

bool	IsIPv6 () const

bool	IsRFC1918 () const

bool	IsRFC2544 () const

bool	IsRFC6598 () const

bool	IsRFC5737 () const

bool	IsRFC3849 () const

bool	IsRFC3927 () const

bool	IsRFC3964 () const

bool	IsRFC4193 () const

bool	IsRFC4380 () const

bool	IsRFC4843 () const

bool	IsRFC7343 () const

bool	IsRFC4862 () const

bool	IsRFC6052 () const

bool	IsRFC6145 () const

bool	IsHeNet () const

bool	IsTor () const
	Check whether this object represents a TOR address.

bool	IsI2P () const
	Check whether this object represents an I2P address.

bool	IsCJDNS () const
	Check whether this object represents a CJDNS address.

bool	IsLocal () const

bool	IsRoutable () const

bool	IsInternal () const

bool	IsValid () const

bool	IsAddrV1Compatible () const
	Check if the current object can be serialized in pre-ADDRv2/BIP155 format.

enum Network	GetNetwork () const

std::string	ToString () const

std::string	ToStringIP () const

bool	GetInAddr (struct in_addr *pipv4Addr) const
	Try to get our IPv4 address.

Network	GetNetClass () const

uint32_t	GetLinkedIPv4 () const
	For IPv4, mapped IPv4, SIIT translated IPv4, Teredo, 6to4 tunneled addresses, return the relevant IPv4 address as a uint32.

bool	HasLinkedIPv4 () const
	Whether this address has a linked IPv4 address (see GetLinkedIPv4()).

uint32_t	GetMappedAS (const std::vector< bool > &asmap) const

std::vector< uint8_t >	GetGroup (const std::vector< bool > &asmap) const
	Get the canonical identifier of our network group.

std::vector< uint8_t >	GetAddrBytes () const

int	GetReachabilityFrom (const CNetAddr *paddrPartner=nullptr) const
	Calculates a metric for how reachable (*this) is from a given partner.

	CNetAddr (const struct in6_addr &pipv6Addr, const uint32_t scope=0)

bool	GetIn6Addr (struct in6_addr *pipv6Addr) const
	Try to get our IPv6 address.

bool	IsRelayable () const
	Whether this address should be relayed to other peers even if we can't reach it ourselves.

template<typename Stream >
void	Serialize (Stream &s) const
	Serialize to a stream.

template<typename Stream >
void	Unserialize (Stream &s)
	Unserialize from a stream.

Public Attributes
NodeSeconds	nTime {TIME_INIT}
	Always included in serialization, except in the network format on INIT_PROTO_VERSION.

ServiceFlags	nServices {NODE_NONE}
	Serialized as uint64_t in V1, and as CompactSize in V2.

Static Private Attributes
static constexpr auto	TIME_INIT {100000000s}

static constexpr uint32_t	DISK_VERSION_INIT {220000}
	Historically, CAddress disk serialization stored the CLIENT_VERSION, optionally OR'ed with the ADDRV2_FORMAT flag to indicate V2 serialization.

static constexpr uint32_t	DISK_VERSION_IGNORE_MASK

static constexpr uint32_t	DISK_VERSION_ADDRV2 {1 << 29}
	The version number written in disk serialized addresses to indicate V2 serializations.

Friends
bool	operator== (const CAddress &a, const CAddress &b)

Additional Inherited Members
Protected Attributes inherited from CService
uint16_t	port

Protected Attributes inherited from CNetAddr
prevector< ADDR_IPV6_SIZE, uint8_t >	m_addr {ADDR_IPV6_SIZE, 0x0}
	Raw representation of the network address.

Network	m_net {NET_IPV6}
	Network to which this address belongs.

uint32_t	m_scope_id {0}
	Scope id if scoped/link-local IPV6 address.

Detailed Description

A CService with information about it as peer.

Definition at line 442 of file protocol.h.

Constructor & Destructor Documentation

◆ CAddress() [1/3]

CAddress::CAddress ( )

inline

Definition at line 482 of file protocol.h.

◆ CAddress() [2/3]

CAddress::CAddress	(	CService	ipIn,
		ServiceFlags	nServicesIn
	)

inline

Definition at line 483 of file protocol.h.

◆ CAddress() [3/3]

CAddress::CAddress	(	CService	ipIn,
		ServiceFlags	nServicesIn,
		NodeSeconds	time
	)

inline

Definition at line 485 of file protocol.h.

Member Function Documentation

◆ SERIALIZE_METHODS()

CAddress::SERIALIZE_METHODS	(	CAddress	,
		obj
	)

inline

Definition at line 488 of file protocol.h.

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Friends And Related Symbol Documentation

◆ operator==

bool operator==	(	const CAddress &	a,
		const CAddress &	b
	)

friend

Definition at line 548 of file protocol.h.

Member Data Documentation

◆ DISK_VERSION_ADDRV2

constexpr uint32_t CAddress::DISK_VERSION_ADDRV2 {1 << 29}

staticconstexprprivate

The version number written in disk serialized addresses to indicate V2 serializations.

It must be exactly 1<<29, as that is the value that historical versions used for this (they used their internal ADDRV2_FORMAT flag here).

Definition at line 473 of file protocol.h.

◆ DISK_VERSION_IGNORE_MASK

constexpr uint32_t CAddress::DISK_VERSION_IGNORE_MASK

staticconstexprprivate

Initial value:

{

0b00000000'00000111'11111111'11111111}

Definition at line 465 of file protocol.h.

◆ DISK_VERSION_INIT

constexpr uint32_t CAddress::DISK_VERSION_INIT {220000}

staticconstexprprivate

Historically, CAddress disk serialization stored the CLIENT_VERSION, optionally OR'ed with the ADDRV2_FORMAT flag to indicate V2 serialization.

The first field has since been disentangled from client versioning, and now instead:

The low bits (masked by DISK_VERSION_IGNORE_MASK) store the fixed value DISK_VERSION_INIT, (in case any code exists that treats it as a client version) but are ignored on deserialization.
The high bits (masked by ~DISK_VERSION_IGNORE_MASK) store actual serialization information. Only 0 or DISK_VERSION_ADDRV2 (equal to the historical ADDRV2_FORMAT) are valid now, and any other value triggers a deserialization failure. Other values can be added later if needed.

For disk deserialization, ADDRV2_FORMAT in the stream version signals that ADDRV2 deserialization is permitted, but the actual format is determined by the high bits in the stored version field. For network serialization, the stream version having ADDRV2_FORMAT or not determines the actual format used (as it has no embedded version number).

Definition at line 464 of file protocol.h.

◆ nServices

ServiceFlags CAddress::nServices {NODE_NONE}

Serialized as uint64_t in V1, and as CompactSize in V2.

Definition at line 546 of file protocol.h.

◆ nTime

NodeSeconds CAddress::nTime {TIME_INIT}

Always included in serialization, except in the network format on INIT_PROTO_VERSION.

Definition at line 544 of file protocol.h.

◆ TIME_INIT

constexpr auto CAddress::TIME_INIT {100000000s}

staticconstexprprivate

Definition at line 443 of file protocol.h.

The documentation for this class was generated from the following file:

src/protocol.h

Public Member Functions

Public Attributes

Static Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CAddress() [1/3]

◆ CAddress() [2/3]

◆ CAddress() [3/3]

Member Function Documentation

◆ SERIALIZE_METHODS()

Friends And Related Symbol Documentation

◆ operator==

Member Data Documentation

◆ DISK_VERSION_ADDRV2

◆ DISK_VERSION_IGNORE_MASK

◆ DISK_VERSION_INIT

◆ nServices

◆ nTime

◆ TIME_INIT