#include <netbase.h>
#include <hash.h>
#include <sync.h>
#include <uint256.h>
#include <random.h>
#include <util.h>
#include <utilstrencodings.h>
#include <atomic>
#include <fcntl.h>
#include <boost/algorithm/string/case_conv.hpp>
#include <boost/algorithm/string/predicate.hpp>

Include dependency graph for netbase.cpp:

Classes
struct	ProxyCredentials
	Credentials for proxy authentication. More...

Macros
#define	MSG_NOSIGNAL 0

Enumerations
enum	SOCKSVersion : uint8_t { SOCKS4 = 0x04, SOCKS5 = 0x05 }
	SOCKS version. More...

enum	SOCKS5Method : uint8_t { NOAUTH = 0x00, GSSAPI = 0x01, USER_PASS = 0x02, NO_ACCEPTABLE = 0xff }
	Values defined for METHOD in RFC1928. More...

enum	SOCKS5Command : uint8_t { CONNECT = 0x01, BIND = 0x02, UDP_ASSOCIATE = 0x03 }
	Values defined for CMD in RFC1928. More...

enum	SOCKS5Reply : uint8_t { SUCCEEDED = 0x00, GENFAILURE = 0x01, NOTALLOWED = 0x02, NETUNREACHABLE = 0x03, HOSTUNREACHABLE = 0x04, CONNREFUSED = 0x05, TTLEXPIRED = 0x06, CMDUNSUPPORTED = 0x07, ATYPEUNSUPPORTED = 0x08 }
	Values defined for REP in RFC1928. More...

enum	SOCKS5Atyp : uint8_t { IPV4 = 0x01, DOMAINNAME = 0x03, IPV6 = 0x04 }
	Values defined for ATYPE in RFC1928. More...

enum	IntrRecvError { IntrRecvError::OK, IntrRecvError::Timeout, IntrRecvError::Disconnected, IntrRecvError::NetworkError, IntrRecvError::Interrupted }
	Status codes that can be returned by InterruptibleRecv. More...

Functions
static proxyType proxyInfo [NET_MAX]	GUARDED_BY (cs_proxyInfos)

static std::atomic< bool >	interruptSocks5Recv (false)

enum Network	ParseNetwork (std::string net)

std::string	GetNetworkName (enum Network net)

static bool	LookupIntern (const char *pszName, std::vector< CNetAddr > &vIP, unsigned int nMaxSolutions, bool fAllowLookup)

bool	LookupHost (const char *pszName, std::vector< CNetAddr > &vIP, unsigned int nMaxSolutions, bool fAllowLookup)

bool	LookupHost (const char *pszName, CNetAddr &addr, bool fAllowLookup)

bool	Lookup (const char *pszName, std::vector< CService > &vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions)

bool	Lookup (const char *pszName, CService &addr, int portDefault, bool fAllowLookup)

CService	LookupNumeric (const char *pszName, int portDefault)

struct timeval	MillisToTimeval (int64_t nTimeout)
	Convert milliseconds to a struct timeval for e.g. More...

static IntrRecvError	InterruptibleRecv (uint8_t *data, size_t len, int timeout, const SOCKET &hSocket)
	Read bytes from socket. More...

std::string	Socks5ErrorString (uint8_t err)
	Convert SOCKS5 reply to an error message. More...

static bool	Socks5 (const std::string &strDest, int port, const ProxyCredentials *auth, const SOCKET &hSocket)
	Connect using SOCKS5 (as described in RFC1928) More...

SOCKET	CreateSocket (const CService &addrConnect)

bool	ConnectSocketDirectly (const CService &addrConnect, const SOCKET &hSocket, int nTimeout)

bool	SetProxy (enum Network net, const proxyType &addrProxy)

bool	GetProxy (enum Network net, proxyType &proxyInfoOut)

bool	SetNameProxy (const proxyType &addrProxy)

bool	GetNameProxy (proxyType &nameProxyOut)

bool	HaveNameProxy ()

bool	IsProxy (const CNetAddr &addr)

bool	ConnectThroughProxy (const proxyType &proxy, const std::string &strDest, int port, const SOCKET &hSocket, int nTimeout, bool *outProxyConnectionFailed)

bool	LookupSubNet (const char *pszName, CSubNet &ret)

std::string	NetworkErrorString (int err)
	Return readable error string for a network error code. More...

bool	CloseSocket (SOCKET &hSocket)
	Close socket and set hSocket to INVALID_SOCKET. More...

bool	SetSocketNonBlocking (const SOCKET &hSocket, bool fNonBlocking)
	Disable or enable blocking-mode for a socket. More...

bool	SetSocketNoDelay (const SOCKET &hSocket)
	Set the TCP_NODELAY flag on a socket. More...

void	InterruptSocks5 (bool interrupt)

Variables
static CCriticalSection	cs_proxyInfos

int	nConnectTimeout = DEFAULT_CONNECT_TIMEOUT

bool	fNameLookup = DEFAULT_NAME_LOOKUP

static const int	SOCKS5_RECV_TIMEOUT = 20 * 1000

Macro Definition Documentation

◆ MSG_NOSIGNAL

#define MSG_NOSIGNAL 0

Definition at line 28 of file netbase.cpp.

Referenced by Socks5().

Enumeration Type Documentation

◆ IntrRecvError

enum IntrRecvError

strong

Status codes that can be returned by InterruptibleRecv.

Enumerator
OK
Timeout
Disconnected
NetworkError
Interrupted

Definition at line 228 of file netbase.cpp.

◆ SOCKS5Atyp

enum SOCKS5Atyp : uint8_t

Values defined for ATYPE in RFC1928.

Enumerator
IPV4
DOMAINNAME
IPV6

Definition at line 221 of file netbase.cpp.

◆ SOCKS5Command

enum SOCKS5Command : uint8_t

Values defined for CMD in RFC1928.

Enumerator
CONNECT
BIND
UDP_ASSOCIATE

Definition at line 201 of file netbase.cpp.

◆ SOCKS5Method

enum SOCKS5Method : uint8_t

Values defined for METHOD in RFC1928.

Enumerator
NOAUTH
GSSAPI	No authentication required.
USER_PASS	GSSAPI.
NO_ACCEPTABLE	Username/password.

Definition at line 193 of file netbase.cpp.

◆ SOCKS5Reply

enum SOCKS5Reply : uint8_t

Values defined for REP in RFC1928.

Enumerator
SUCCEEDED
GENFAILURE	Succeeded.
NOTALLOWED	General failure.
NETUNREACHABLE	Connection not allowed by ruleset.
HOSTUNREACHABLE	Network unreachable.
CONNREFUSED	Network unreachable.
TTLEXPIRED	Connection refused.
CMDUNSUPPORTED	TTL expired.
ATYPEUNSUPPORTED	Command not supported.

Definition at line 208 of file netbase.cpp.

◆ SOCKSVersion

enum SOCKSVersion : uint8_t

SOCKS version.

Enumerator
SOCKS4
SOCKS5

Definition at line 187 of file netbase.cpp.

Function Documentation

◆ CloseSocket()

bool CloseSocket ( SOCKET & hSocket )

Close socket and set hSocket to INVALID_SOCKET.

Definition at line 690 of file netbase.cpp.

References INVALID_SOCKET, LogPrintf, NetworkErrorString(), SOCKET_ERROR, and WSAGetLastError.

Referenced by CConnman::AcceptConnection(), CConnman::BindListenPort(), CNode::CloseSocketDisconnect(), CConnman::ConnectNode(), CreateSocket(), CActiveMasternodeManager::Init(), CConnman::Stop(), and CNode::~CNode().

◆ ConnectSocketDirectly()

bool ConnectSocketDirectly	(	const CService &	addrConnect,
		const SOCKET &	hSocket,
		int	nTimeout
	)

Definition at line 482 of file netbase.cpp.

References CService::GetSockAddr(), INVALID_SOCKET, LogPrint, LogPrintf, MillisToTimeval(), BCLog::NET, NetworkErrorString(), SOCKET_ERROR, CService::ToString(), WSAEINPROGRESS, WSAEINVAL, WSAEWOULDBLOCK, and WSAGetLastError.

Referenced by CConnman::ConnectNode(), ConnectThroughProxy(), and CActiveMasternodeManager::Init().

◆ ConnectThroughProxy()

bool ConnectThroughProxy	(	const proxyType &	proxy,
		const std::string &	strDest,
		int	port,
		const SOCKET &	hSocket,
		int	nTimeout,
		bool *	outProxyConnectionFailed
	)

Definition at line 595 of file netbase.cpp.

References ConnectSocketDirectly(), ProxyCredentials::password, proxyType::proxy, proxyType::randomize_credentials, Socks5(), strprintf, and ProxyCredentials::username.

Referenced by CConnman::ConnectNode().

◆ CreateSocket()

SOCKET CreateSocket ( const CService & addrConnect )

Definition at line 446 of file netbase.cpp.

References CloseSocket(), CService::GetSockAddr(), INVALID_SOCKET, IsSelectableSocket(), LogPrintf, NetworkErrorString(), SetSocketNoDelay(), SetSocketNonBlocking(), CService::ToString(), and WSAGetLastError.

Referenced by CConnman::BindListenPort(), CConnman::ConnectNode(), and CActiveMasternodeManager::Init().

◆ GetNameProxy()

bool GetNameProxy ( proxyType & nameProxyOut )

Definition at line 573 of file netbase.cpp.

References cs_proxyInfos, and LOCK.

Referenced by CConnman::ConnectNode().

◆ GetNetworkName()

std::string GetNetworkName ( enum Network net )

Definition at line 50 of file netbase.cpp.

References NET_IPV4, NET_IPV6, and NET_TOR.

Referenced by GetNetworksInfo().

◆ GetProxy()

bool GetProxy	(	enum Network	net,
		proxyType &	proxyInfoOut
	)

Definition at line 556 of file netbase.cpp.

References cs_proxyInfos, LOCK, and NET_MAX.

Referenced by CConnman::ConnectNode(), GetNetworksInfo(), OptionsModel::getProxySettings(), and OptionsDialog::updateDefaultProxyNets().

◆ GUARDED_BY()

static proxyType nameProxy GUARDED_BY ( cs_proxyInfos )

static

◆ HaveNameProxy()

bool HaveNameProxy ( )

Definition at line 581 of file netbase.cpp.

References cs_proxyInfos, and LOCK.

Referenced by CConnman::ConnectNode(), and CConnman::ThreadDNSAddressSeed().

◆ InterruptibleRecv()

static IntrRecvError InterruptibleRecv	(	uint8_t *	data,
		size_t	len,
		int	timeout,
		const SOCKET &	hSocket
	)

static

Read bytes from socket.

This will either read the full number of bytes requested or return False on error or timeout. This function can be interrupted by calling InterruptSocks5()

Parameters