#include <addrdb.h>
#include <addrman.h>
#include <amount.h>
#include <bloom.h>
#include <compat.h>
#include <crypto/siphash.h>
#include <hash.h>
#include <limitedmap.h>
#include <netaddress.h>
#include <net_permissions.h>
#include <policy/feerate.h>
#include <protocol.h>
#include <random.h>
#include <streams.h>
#include <sync.h>
#include <uint256.h>
#include <threadinterrupt.h>
#include <atomic>
#include <deque>
#include <stdint.h>
#include <thread>
#include <memory>
#include <condition_variable>
#include <arpa/inet.h>

Include dependency graph for net.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	AddedNodeInfo

struct	CSerializedNetMsg

class	CConnman

struct	CConnman::Options

struct	CConnman::ListenSocket

struct	CombinerAll

class	NetEventsInterface
	Interface for message handling. More...

struct	LocalServiceInfo

class	CNodeStats

class	CNetMessage
	Transport protocol agnostic message container. More...

class	TransportDeserializer
	The TransportDeserializer takes care of holding and deserializing the network receive buffer. More...

class	V1TransportDeserializer

class	CNode
	Information about a peer. More...

struct	CNode::TxRelay

Typedefs
typedef int64_t	NodeId

typedef std::map< std::string, uint64_t >	mapMsgCmdSize

Enumerations
enum	{ LOCAL_NONE, LOCAL_IF, LOCAL_BIND, LOCAL_UPNP, LOCAL_MANUAL, LOCAL_MAX }

Functions
void	Discover ()

void	StartMapPort ()

void	InterruptMapPort ()

void	StopMapPort ()

unsigned short	GetListenPort ()

bool	IsPeerAddrLocalGood (CNode *pnode)

void	AdvertiseLocal (CNode *pnode)

void	SetReachable (enum Network net, bool reachable)
	Mark a network as reachable or unreachable (no automatic connects to it) More...

bool	IsReachable (enum Network net)

bool	IsReachable (const CNetAddr &addr)

bool	AddLocal (const CService &addr, int nScore=LOCAL_NONE)

bool	AddLocal (const CNetAddr &addr, int nScore=LOCAL_NONE)

void	RemoveLocal (const CService &addr)

bool	SeenLocal (const CService &addr)
	vote for a local address More...

bool	IsLocal (const CService &addr)
	check whether a given address is potentially local More...

bool	GetLocal (CService &addr, const CNetAddr *paddrPeer=nullptr)

CAddress	GetLocalAddress (const CNetAddr *paddrPeer, ServiceFlags nLocalServices)

std::map< CNetAddr, LocalServiceInfo > mapLocalHost	GUARDED_BY (cs_mapLocalHost)

int64_t	PoissonNextSend (int64_t now, int average_interval_seconds)
	Return a timestamp in the future (in microseconds) for exponentially distributed events. More...

std::chrono::microseconds	PoissonNextSend (std::chrono::microseconds now, std::chrono::seconds average_interval)
	Wrapper to return mockable type. More...

Variables
static const bool	DEFAULT_WHITELISTRELAY = true
	Default for -whitelistrelay. More...

static const bool	DEFAULT_WHITELISTFORCERELAY = false
	Default for -whitelistforcerelay. More...

static const int	PING_INTERVAL = 2 * 60
	Time between pings automatically sent out for latency probing and keepalive (in seconds). More...

static const int	TIMEOUT_INTERVAL = 20 * 60
	Time after which to disconnect, after waiting for a ping response (or inactivity). More...

static const int	FEELER_INTERVAL = 120
	Run the feeler connection loop once every 2 minutes or 120 seconds. More...

static const unsigned int	MAX_INV_SZ = 50000
	The maximum number of entries in an 'inv' protocol message. More...

static const unsigned int	MAX_LOCATOR_SZ = 101
	The maximum number of entries in a locator. More...

static const unsigned int	MAX_ADDR_TO_SEND = 1000
	The maximum number of new addresses to accumulate before announcing. More...

static const unsigned int	MAX_PROTOCOL_MESSAGE_LENGTH = 4 * 1000 * 1000
	Maximum length of incoming protocol messages (no message over 4 MB is currently acceptable). More...

static const unsigned int	MAX_SUBVERSION_LENGTH = 256
	Maximum length of the user agent string in `version` message. More...

static const int	MAX_OUTBOUND_FULL_RELAY_CONNECTIONS = 8
	Maximum number of automatic outgoing nodes over which we'll relay everything (blocks, tx, addrs, etc) More...

static const int	MAX_ADDNODE_CONNECTIONS = 8
	Maximum number of addnode outgoing nodes. More...

static const int	MAX_BLOCKS_ONLY_CONNECTIONS = 2
	Maximum number of block-relay-only outgoing connections. More...

static const bool	DEFAULT_LISTEN = true
	-listen default More...

static const bool	DEFAULT_UPNP = false
	-upnp default More...

static const unsigned int	DEFAULT_MAX_PEER_CONNECTIONS = 125
	The maximum number of peer connections to maintain. More...

static const uint64_t	DEFAULT_MAX_UPLOAD_TARGET = 0
	The default for -maxuploadtarget. More...

static const uint64_t	MAX_UPLOAD_TIMEFRAME = 60 * 60 * 24
	The default timeframe for -maxuploadtarget. More...

static const bool	DEFAULT_BLOCKSONLY = false
	Default for blocks only. More...

static const int64_t	DEFAULT_PEER_CONNECT_TIMEOUT = 60
	-peertimeout default More...

static const bool	DEFAULT_FORCEDNSSEED = false

static const size_t	DEFAULT_MAXRECEIVEBUFFER = 5 * 1000

static const size_t	DEFAULT_MAXSENDBUFFER = 1 * 1000

bool	fDiscover

bool	fListen

bool	g_relay_txes

std::string	strSubVersion
	Subversion as sent to the P2P network in `version` messages. More...

RecursiveMutex	cs_mapLocalHost

const std::string	NET_MESSAGE_COMMAND_OTHER

Typedef Documentation

◆ mapMsgCmdSize

typedef std::map<std::string, uint64_t> mapMsgCmdSize

Definition at line 575 of file net.h.

◆ NodeId

typedef int64_t NodeId

Definition at line 93 of file net.h.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
LOCAL_NONE
LOCAL_IF
LOCAL_BIND
LOCAL_UPNP
LOCAL_MANUAL
LOCAL_MAX

Definition at line 526 of file net.h.

Function Documentation

◆ AddLocal() [1/2]

bool AddLocal	(	const CService &	addr,
		int	nScore = `LOCAL_NONE`
	)

Definition at line 209 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ AddLocal() [2/2]

bool AddLocal	(	const CNetAddr &	addr,
		int	nScore = `LOCAL_NONE`
	)

Definition at line 235 of file net.cpp.

Here is the call graph for this function:

◆ AdvertiseLocal()

void AdvertiseLocal ( CNode * pnode )

Definition at line 182 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ Discover()

void Discover ( )

Definition at line 2127 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GetListenPort()

unsigned short GetListenPort ( )

Definition at line 99 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GetLocal()

bool GetLocal	(	CService &	addr,
		const CNetAddr *	paddrPeer = `nullptr`
	)

Definition at line 105 of file net.cpp.

Here is the caller graph for this function:

◆ GetLocalAddress()

CAddress GetLocalAddress	(	const CNetAddr *	paddrPeer,
		ServiceFlags	nLocalServices
	)

Definition at line 154 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GUARDED_BY()

std::map<CNetAddr, LocalServiceInfo> mapLocalHost GUARDED_BY ( cs_mapLocalHost )

Here is the caller graph for this function:

◆ InterruptMapPort()

void InterruptMapPort ( )

Definition at line 1550 of file net.cpp.

Here is the caller graph for this function:

◆ IsLocal()

bool IsLocal ( const CService & addr )

check whether a given address is potentially local

Definition at line 280 of file net.cpp.

Here is the caller graph for this function:

◆ IsPeerAddrLocalGood()

bool IsPeerAddrLocalGood ( CNode * pnode )

Definition at line 174 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ IsReachable() [1/2]

bool IsReachable ( enum Network net )

Returns: true if the network is reachable, false otherwise

Definition at line 255 of file net.cpp.

Here is the caller graph for this function:

◆ IsReachable() [2/2]

bool IsReachable ( const CNetAddr & addr )

Returns: true if the address is in a reachable network, false otherwise

Definition at line 261 of file net.cpp.

Here is the call graph for this function:

◆ PoissonNextSend() [1/2]

int64_t PoissonNextSend	(	int64_t	now,
		int	average_interval_seconds
	)

Return a timestamp in the future (in microseconds) for exponentially distributed events.

Definition at line 2781 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ PoissonNextSend() [2/2]

std::chrono::microseconds PoissonNextSend	(	std::chrono::microseconds	now,
		std::chrono::seconds	average_interval
	)

inline

Wrapper to return mockable type.

Definition at line 1002 of file net.h.

Here is the call graph for this function:

◆ RemoveLocal()

void RemoveLocal ( const CService & addr )

Definition at line 240 of file net.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ SeenLocal()

bool SeenLocal ( const CService & addr )

vote for a local address

Definition at line 267 of file net.cpp.

Here is the caller graph for this function:

◆ SetReachable()

void SetReachable	(	enum Network	net,
		bool	reachable
	)

Mark a network as reachable or unreachable (no automatic connects to it)

Note: Networks are reachable by default

Definition at line 247 of file net.cpp.

Here is the caller graph for this function:

◆ StartMapPort()

void StartMapPort ( )

Definition at line 1546 of file net.cpp.

Here is the caller graph for this function:

◆ StopMapPort()

void StopMapPort ( )

Definition at line 1554 of file net.cpp.

Here is the caller graph for this function:

Variable Documentation

◆ cs_mapLocalHost

RecursiveMutex cs_mapLocalHost

Definition at line 88 of file net.cpp.

◆ DEFAULT_BLOCKSONLY

const bool DEFAULT_BLOCKSONLY = false

static

Default for blocks only.

Definition at line 85 of file net.h.

◆ DEFAULT_FORCEDNSSEED

const bool DEFAULT_FORCEDNSSEED = false

static

Definition at line 89 of file net.h.

◆ DEFAULT_LISTEN

const bool DEFAULT_LISTEN = true

static

-listen default

Definition at line 71 of file net.h.

◆ DEFAULT_MAX_PEER_CONNECTIONS

const unsigned int DEFAULT_MAX_PEER_CONNECTIONS = 125

static

The maximum number of peer connections to maintain.

Definition at line 79 of file net.h.

◆ DEFAULT_MAX_UPLOAD_TARGET

const uint64_t DEFAULT_MAX_UPLOAD_TARGET = 0

static

The default for -maxuploadtarget.

0 = Unlimited

Definition at line 81 of file net.h.

◆ DEFAULT_MAXRECEIVEBUFFER

const size_t DEFAULT_MAXRECEIVEBUFFER = 5 * 1000

static

Definition at line 90 of file net.h.

◆ DEFAULT_MAXSENDBUFFER

const size_t DEFAULT_MAXSENDBUFFER = 1 * 1000

static

Definition at line 91 of file net.h.

◆ DEFAULT_PEER_CONNECT_TIMEOUT

const int64_t DEFAULT_PEER_CONNECT_TIMEOUT = 60

static

-peertimeout default

Definition at line 87 of file net.h.

◆ DEFAULT_UPNP

const bool DEFAULT_UPNP = false

static

-upnp default

Definition at line 76 of file net.h.

◆ DEFAULT_WHITELISTFORCERELAY

const bool DEFAULT_WHITELISTFORCERELAY = false

static

Default for -whitelistforcerelay.

Definition at line 46 of file net.h.

◆ DEFAULT_WHITELISTRELAY

const bool DEFAULT_WHITELISTRELAY = true

static

Default for -whitelistrelay.

Definition at line 44 of file net.h.

◆ fDiscover

bool fDiscover

Definition at line 85 of file net.cpp.

◆ FEELER_INTERVAL

const int FEELER_INTERVAL = 120

static

Run the feeler connection loop once every 2 minutes or 120 seconds.

Definition at line 53 of file net.h.

◆ fListen

bool fListen

Definition at line 86 of file net.cpp.

◆ g_relay_txes

bool g_relay_txes

Definition at line 87 of file net.cpp.

◆ MAX_ADDNODE_CONNECTIONS

const int MAX_ADDNODE_CONNECTIONS = 8

static

Maximum number of addnode outgoing nodes.

Definition at line 67 of file net.h.

◆ MAX_ADDR_TO_SEND

const unsigned int MAX_ADDR_TO_SEND = 1000

static

The maximum number of new addresses to accumulate before announcing.

Definition at line 59 of file net.h.

◆ MAX_BLOCKS_ONLY_CONNECTIONS

const int MAX_BLOCKS_ONLY_CONNECTIONS = 2

static

Maximum number of block-relay-only outgoing connections.

Definition at line 69 of file net.h.

◆ MAX_INV_SZ

const unsigned int MAX_INV_SZ = 50000

static

The maximum number of entries in an 'inv' protocol message.

Definition at line 55 of file net.h.

◆ MAX_LOCATOR_SZ

const unsigned int MAX_LOCATOR_SZ = 101

static

The maximum number of entries in a locator.

Definition at line 57 of file net.h.

◆ MAX_OUTBOUND_FULL_RELAY_CONNECTIONS

const int MAX_OUTBOUND_FULL_RELAY_CONNECTIONS = 8

static

Maximum number of automatic outgoing nodes over which we'll relay everything (blocks, tx, addrs, etc)

Definition at line 65 of file net.h.

◆ MAX_PROTOCOL_MESSAGE_LENGTH

const unsigned int MAX_PROTOCOL_MESSAGE_LENGTH = 4 * 1000 * 1000

static

Maximum length of incoming protocol messages (no message over 4 MB is currently acceptable).

Definition at line 61 of file net.h.

◆ MAX_SUBVERSION_LENGTH

const unsigned int MAX_SUBVERSION_LENGTH = 256

static

Maximum length of the user agent string in version message.

Definition at line 63 of file net.h.

◆ MAX_UPLOAD_TIMEFRAME

const uint64_t MAX_UPLOAD_TIMEFRAME = 60 * 60 * 24

static

The default timeframe for -maxuploadtarget.

1 day.

Definition at line 83 of file net.h.

◆ NET_MESSAGE_COMMAND_OTHER

const std::string NET_MESSAGE_COMMAND_OTHER

Definition at line 78 of file net.cpp.

◆ PING_INTERVAL

const int PING_INTERVAL = 2 * 60

static

Time between pings automatically sent out for latency probing and keepalive (in seconds).

Definition at line 49 of file net.h.

◆ strSubVersion

std::string strSubVersion

Subversion as sent to the P2P network in version messages.

Definition at line 91 of file net.cpp.

◆ TIMEOUT_INTERVAL

const int TIMEOUT_INTERVAL = 20 * 60

static

Time after which to disconnect, after waiting for a ping response (or inactivity).

Definition at line 51 of file net.h.

Classes

Typedefs

Enumerations

Functions

Variables

Typedef Documentation

◆ mapMsgCmdSize

◆ NodeId

Enumeration Type Documentation

◆ anonymous enum

Function Documentation

◆ AddLocal() [1/2]

◆ AddLocal() [2/2]

◆ AdvertiseLocal()

◆ Discover()

◆ GetListenPort()

◆ GetLocal()

◆ GetLocalAddress()

◆ GUARDED_BY()

◆ InterruptMapPort()

◆ IsLocal()

◆ IsPeerAddrLocalGood()

◆ IsReachable() [1/2]

◆ IsReachable() [2/2]

◆ PoissonNextSend() [1/2]

◆ PoissonNextSend() [2/2]

◆ RemoveLocal()

◆ SeenLocal()

◆ SetReachable()

◆ StartMapPort()

◆ StopMapPort()

Variable Documentation

◆ cs_mapLocalHost

◆ DEFAULT_BLOCKSONLY

◆ DEFAULT_FORCEDNSSEED

◆ DEFAULT_LISTEN

◆ DEFAULT_MAX_PEER_CONNECTIONS

◆ DEFAULT_MAX_UPLOAD_TARGET

◆ DEFAULT_MAXRECEIVEBUFFER

◆ DEFAULT_MAXSENDBUFFER

◆ DEFAULT_PEER_CONNECT_TIMEOUT

◆ DEFAULT_UPNP

◆ DEFAULT_WHITELISTFORCERELAY

◆ DEFAULT_WHITELISTRELAY

◆ fDiscover

◆ FEELER_INTERVAL

◆ fListen

◆ g_relay_txes

◆ MAX_ADDNODE_CONNECTIONS

◆ MAX_ADDR_TO_SEND

◆ MAX_BLOCKS_ONLY_CONNECTIONS

◆ MAX_INV_SZ

◆ MAX_LOCATOR_SZ

◆ MAX_OUTBOUND_FULL_RELAY_CONNECTIONS

◆ MAX_PROTOCOL_MESSAGE_LENGTH

◆ MAX_SUBVERSION_LENGTH

◆ MAX_UPLOAD_TIMEFRAME

◆ NET_MESSAGE_COMMAND_OTHER

◆ PING_INTERVAL

◆ strSubVersion

◆ TIMEOUT_INTERVAL