net

package
v1.2.0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Mar 30, 2026 License: AGPL-3.0 Imports: 23 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// AddressFamilyIPv4 represents address as IPv4
	AddressFamilyIPv4 = AddressFamily(0)

	// AddressFamilyIPv6 represents address as IPv6
	AddressFamilyIPv6 = AddressFamily(1)

	// AddressFamilyDomain represents address as Domain
	AddressFamilyDomain = AddressFamily(2)
)
View Source 
const (
	IPv4len = net.IPv4len
	IPv6len = net.IPv6len
)

Variables

View Source 
var (
	// LocalHostIP is a constant value for localhost IP in IPv4.
	LocalHostIP = IPAddress([]byte{127, 0, 0, 1})

	// AnyIP is a constant value for any IP in IPv4.
	AnyIP = IPAddress([]byte{0, 0, 0, 0})

	// LocalHostDomain is a constant value for localhost domain.
	LocalHostDomain = DomainAddress("localhost")

	// LocalHostIPv6 is a constant value for localhost IP in IPv6.
	LocalHostIPv6 = IPAddress([]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1})

	// AnyIPv6 is a constant value for any IP in IPv6.
	AnyIPv6 = IPAddress([]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})

	AliyunDns4 = IPAddress([]byte{223, 5, 5, 5})

	CfDns4 = IPAddress([]byte{1, 1, 1, 1})

	GoogleDns4 = IPAddress([]byte{8, 8, 8, 8})
)
View Source 
var (
	CIDRMask        = net.CIDRMask
	Dial            = net.Dial
	DialTCP         = net.DialTCP
	DialUDP         = net.DialUDP
	DialUnix        = net.DialUnix
	FileConn        = net.FileConn
	Listen          = net.Listen
	ListenTCP       = net.ListenTCP
	ListenUDP       = net.ListenUDP
	ListenUnix      = net.ListenUnix
	LookupIP        = net.LookupIP
	ParseCIDR       = net.ParseCIDR
	ParseIP         = net.ParseIP
	ResolveUDPAddr  = net.ResolveUDPAddr
	ResolveUnixAddr = net.ResolveUnixAddr
	SplitHostPort   = net.SplitHostPort
	ResolveTCPAddr  = net.ResolveTCPAddr
)
View Source 
var AnyUdpDest = Destination{
	Address: AnyIP,
	Network: Network_UDP,
}
View Source 
var (
	PrivateAddress = netip.PrefixFrom(netip.AddrFrom4([4]byte{172, 16, 0, 0}), 12)
)

Functions

func AddressestoNetIPs 

func AddressestoNetIPs(addrs []Address) ([]net.IP, error)

func Checksum 

func Checksum(sum uint32, b []byte) (answer [2]byte)

checksum for Internet Protocol family headers

func Contains added in v1.1.2 

func Contains(p *PortRange, port Port) bool

Contains returns true if the given port is within the range of a PortRange.

func FetchHTTPContent 

func FetchHTTPContent(target string) ([]byte, error)

FetchHTTPContent dials http(s) for remote content

func GetInnerMostConn 

func GetInnerMostConn(conn net.Conn) net.Conn

func IPToNetipAddr 

func IPToNetipAddr(ip net.IP) netip.Addr

func IntToIP 

func IntToIP(ip int) net.IP

func IpToInt 

func IpToInt(ip net.IP) int

func IsDirectedBoradcast 

func IsDirectedBoradcast(ip net.IP) bool

func IsDomainTooLong 

func IsDomainTooLong(domain string) bool

func NetIPFromGvisorTcpipAddress 

func NetIPFromGvisorTcpipAddress(address tcpip.Address) net.IP

func NewConnection 

func NewConnection(opts ...ConnectionOption) net.Conn

func PickUDPPort 

func PickUDPPort() uint16

pickPort returns an unused UDP port of the system.

func PrefixStringFromIP 

func PrefixStringFromIP(ip net.IP) string

func RandomIP 

func RandomIP(startIP, endIP net.IP) net.IP

func StandardIp 

func StandardIp(ip net.IP) net.IP

func Sum 

func Sum(b []byte) uint32

func SystemString added in v1.1.2 

func SystemString(n Network) string

func UnmarshalJSON added in v1.1.2 

func UnmarshalJSON(n *Network, b []byte) error

Types

type Addr 

type Addr = net.Addr

type AddrError 

type AddrError = net.AddrError

type Address 

type Address interface {
	IP() net.IP     // IP of this Address
	Domain() string // Domain of this Address
	Family() AddressFamily
	// IPv6 address is wrapped in "[]"
	String() string // String representation of this Address
}

Address represents a network address to be communicated with. It may be an IP address or domain address, not both. This interface doesn't resolve IP address for a given domain.

func AddressFromNetIpAddr 

func AddressFromNetIpAddr(ip netip.Addr) Address

func DomainAddress 

func DomainAddress(domain string) Address

DomainAddress creates an Address with given domain.

func IPAddress 

func IPAddress(ip []byte) Address

IPAddress creates an Address with given IP.

func ParseAddress 

func ParseAddress(addr string) Address

ParseAddress parses a string into an Address. The return value will be an IPAddress when the string is in the form of IPv4 or IPv6 address, or a DomainAddress otherwise.

func ParseIPFromString 

func ParseIPFromString(addr string) Address

type AddressFamily 

type AddressFamily byte

AddressFamily is the type of address.

func (AddressFamily) IsDomain 

func (af AddressFamily) IsDomain() bool

IsDomain returns true if current AddressFamily is Domain.

func (AddressFamily) IsIP 

func (af AddressFamily) IsIP() bool

IsIP returns true if current AddressFamily is IPv6 or IPv4.

func (AddressFamily) IsIPv4 

func (af AddressFamily) IsIPv4() bool

IsIPv4 returns true if current AddressFamily is IPv4.

func (AddressFamily) IsIPv6 

func (af AddressFamily) IsIPv6() bool

IsIPv6 returns true if current AddressFamily is IPv6.

type AddressPort 

type AddressPort struct {
	Address Address
	Port    Port
}

func (AddressPort) String 

func (ap AddressPort) String() string

type BytesConn 

type BytesConn struct {
	net.Conn
	// contains filtered or unexported fields
}

read will read from bytes first

func NewBytesConn 

func NewBytesConn(conn net.Conn, b []byte) *BytesConn

func (*BytesConn) Read 

func (c *BytesConn) Read(b []byte) (int, error)

type Conn 

type Conn = net.Conn

type ConnWithClose 

type ConnWithClose struct {
	net.Conn
	// contains filtered or unexported fields
}

func NewConnWithClose 

func NewConnWithClose(conn net.Conn, cb func()) *ConnWithClose

func (*ConnWithClose) Close 

func (c *ConnWithClose) Close() error

type ConnectionOption 

type ConnectionOption func(*connection)

func ConnectionInput 

func ConnectionInput(writer io.Writer) ConnectionOption

func ConnectionInputMulti 

func ConnectionInputMulti(writer buf.Writer) ConnectionOption

func ConnectionLocalAddr 

func ConnectionLocalAddr(a net.Addr) ConnectionOption

func ConnectionOnClose 

func ConnectionOnClose(n io.Closer) ConnectionOption

func ConnectionOutput 

func ConnectionOutput(reader io.Reader) ConnectionOption

func ConnectionOutputMulti 

func ConnectionOutputMulti(reader buf.Reader) ConnectionOption

func ConnectionOutputMultiUDP 

func ConnectionOutputMultiUDP(reader buf.Reader) ConnectionOption

func ConnectionRemoteAddr 

func ConnectionRemoteAddr(a net.Addr) ConnectionOption

type Destination 

type Destination struct {
	Address Address
	Port    Port
	Network Network
}

Destination represents a network destination including address and protocol (tcp / udp).

func DestinationFromAddr 

func DestinationFromAddr(addr net.Addr) Destination

DestinationFromAddr generates a Destination from a net address.

func ParseDestination 

func ParseDestination(dest string) (Destination, error)

ParseDestination converts a destination from its string presentation.

func TCPDestination 

func TCPDestination(address Address, port Port) Destination

TCPDestination creates a TCP destination with given address

func UDPDestination 

func UDPDestination(address Address, port Port) Destination

UDPDestination creates a UDP destination with given address

func UnixDestination 

func UnixDestination(address Address) Destination

UnixDestination creates a Unix destination with given address

func (*Destination) Addr 

func (d *Destination) Addr() net.Addr

func (Destination) IsValid 

func (d Destination) IsValid() bool

IsValid returns true if this Destination is valid, i.e. it is not unknown

func (Destination) NetAddr 

func (d Destination) NetAddr() string

NetAddr returns the network address in this Destination in string form.

func (Destination) String 

func (d Destination) String() string

String returns the strings form of this Destination.

func (Destination) ToAddressPort 

func (t Destination) ToAddressPort() AddressPort

func (Destination) ToUdpNetwork 

func (t Destination) ToUdpNetwork() string

type Dialer 

type Dialer = net.Dialer

type Error 

type Error = net.Error

type HasNetConn 

type HasNetConn interface {
	NetConn() net.Conn
}

type IP 

type IP = net.IP

type IPMask 

type IPMask = net.IPMask

type IPNet 

type IPNet = net.IPNet

type ListenConfig 

type ListenConfig = net.ListenConfig

type Listener 

type Listener = net.Listener

type MbConn 

type MbConn struct {
	net.Conn
	Mb buf.MultiBuffer
}

read will read from Mb first

func NewMbConn 

func NewMbConn(conn net.Conn, cache buf.MultiBuffer) *MbConn

func (*MbConn) CloseWrite 

func (c *MbConn) CloseWrite() error

func (*MbConn) NetConn 

func (c *MbConn) NetConn() net.Conn

func (*MbConn) OkayToUnwrapReader 

func (c *MbConn) OkayToUnwrapReader() int

func (*MbConn) OkayToUnwrapWriter 

func (c *MbConn) OkayToUnwrapWriter() int

func (*MbConn) Read 

func (c *MbConn) Read(b []byte) (n int, err error)

func (*MbConn) UnwrapReader 

func (c *MbConn) UnwrapReader() any

func (*MbConn) UnwrapWriter 

func (c *MbConn) UnwrapWriter() any

type MemoryConn 

type MemoryConn struct {
	net.Conn
	// contains filtered or unexported fields
}

all data read from Conn will be saved to history until stop

func NewMemoryRConn 

func NewMemoryRConn(conn net.Conn) *MemoryConn

func (*MemoryConn) History 

func (c *MemoryConn) History() buf.MultiBuffer

func (*MemoryConn) OkayToUnwrapReader 

func (c *MemoryConn) OkayToUnwrapReader() int

func (*MemoryConn) OkayToUnwrapWriter 

func (c *MemoryConn) OkayToUnwrapWriter() int

func (*MemoryConn) Read 

func (c *MemoryConn) Read(p []byte) (int, error)

func (*MemoryConn) StopMemorize 

func (c *MemoryConn) StopMemorize()

func (*MemoryConn) UnwrapReader 

func (c *MemoryConn) UnwrapReader() any

func (*MemoryConn) UnwrapWriter 

func (c *MemoryConn) UnwrapWriter() any

type NetConnToPacketConn 

type NetConnToPacketConn struct {
	net.Conn
}

func (*NetConnToPacketConn) ReadFrom 

func (c *NetConnToPacketConn) ReadFrom(p []byte) (n int, addr Addr, err error)

func (*NetConnToPacketConn) SetReadBuffer added in v1.0.2 

func (c *NetConnToPacketConn) SetReadBuffer(bytes int) error

suppress quic-go log

func (*NetConnToPacketConn) WriteTo 

func (c *NetConnToPacketConn) WriteTo(p []byte, addr Addr) (n int, err error)

type NetDialer 

type NetDialer struct {
	net.Dialer
}

func (*NetDialer) Dial 

func (d *NetDialer) Dial(ctx context.Context, dst Destination) (net.Conn, error)

type NetPacketListener 

type NetPacketListener struct {
	net.ListenConfig
}

func (*NetPacketListener) ListenPacket 

func (l *NetPacketListener) ListenPacket(ctx context.Context, network, address string) (net.PacketConn, error)

type Network 

type Network = pbnet.Network
const (
	Network_Unknown Network = 0
	Network_TCP     Network = 2
	Network_UDP     Network = 3
	Network_UNIX    Network = 4
)

func NetworkFromAddr 

func NetworkFromAddr(addr net.Addr) Network

type PacketConn 

type PacketConn = net.PacketConn

type Port 

type Port uint16

Port represents a network port in TCP and UDP protocol.

func FromPort added in v1.1.2 

func FromPort(p *PortRange) Port

FromPort returns the beginning port of this PortRange.

func PickTCPPort 

func PickTCPPort() Port

PickTCPPort returns an unused TCP port of the system.

func PortFromBytes 

func PortFromBytes(port []byte) Port

PortFromBytes converts a byte array to a Port, assuming bytes are in big endian order. @unsafe Caller must ensure that the byte array has at least 2 elements.

func PortFromInt 

func PortFromInt(val uint32) (Port, error)

PortFromInt converts an integer to a Port. @error when the integer is not positive or larger then 65535

func PortFromString 

func PortFromString(s string) (Port, error)

PortFromString converts a string to a Port. @error when the string is not an integer or the integral value is a not a valid Port.

func ToPort added in v1.1.2 

func ToPort(p *PortRange) Port

ToPort returns the end port of this PortRange.

func (Port) String 

func (p Port) String() string

String returns the string presentation of a Port.

func (Port) Value 

func (p Port) Value() uint16

Value return the corresponding uint16 value of a Port.

type PortRange 

type PortRange = pbnet.PortRange

func SinglePortRange 

func SinglePortRange(p Port) *PortRange

SinglePortRange returns a PortRange contains a single port.

type Resolver 

type Resolver = net.Resolver

type StatsConn 

type StatsConn struct {
	net.Conn
	ReadCounter  *atomic.Uint64
	WriteCounter *atomic.Uint64
}

func NewStatsConn 

func NewStatsConn(conn net.Conn, readCounter, writeCounter *atomic.Uint64) *StatsConn

func (*StatsConn) HasNetConn 

func (c *StatsConn) HasNetConn() net.Conn

func (*StatsConn) Read 

func (c *StatsConn) Read(b []byte) (int, error)

func (*StatsConn) Write 

func (c *StatsConn) Write(b []byte) (int, error)

type StatsListener 

type StatsListener struct {
	net.Listener
	// contains filtered or unexported fields
}

func NewStatsListener 

func NewStatsListener(listener net.Listener, readCounter, writeCounter *atomic.Uint64) *StatsListener

func (*StatsListener) Accept 

func (l *StatsListener) Accept() (net.Conn, error)

type StatsPacketConn 

type StatsPacketConn struct {
	net.PacketConn
	ReadCounter  *atomic.Uint64
	WriteCounter *atomic.Uint64
}

func NewStatsPacketConn 

func NewStatsPacketConn(pc net.PacketConn, readCounter, writeCounter *atomic.Uint64) *StatsPacketConn

func (*StatsPacketConn) ReadFrom 

func (c *StatsPacketConn) ReadFrom(p []byte) (n int, addr Addr, err error)

func (*StatsPacketConn) WriteTo 

func (c *StatsPacketConn) WriteTo(p []byte, addr Addr) (n int, err error)

type TCPAddr 

type TCPAddr = net.TCPAddr

type TCPConn 

type TCPConn = net.TCPConn

type TCPListener 

type TCPListener = net.TCPListener

type UDPAddr 

type UDPAddr = net.UDPAddr

type UDPConn 

type UDPConn = net.UDPConn

type UnixAddr 

type UnixAddr = net.UnixAddr

type UnixConn 

type UnixConn = net.UnixConn

type UnixListener 

type UnixListener = net.UnixListener

Source Files

View all Source files

Directories

Path Synopsis

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.