168 lines
4.1 KiB
Go
168 lines
4.1 KiB
Go
// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
// Package stdnet implements the transport.Net interface
|
|
// using methods from Go's standard net package.
|
|
package stdnet
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
|
|
"github.com/pion/transport/v2"
|
|
)
|
|
|
|
const (
|
|
lo0String = "lo0String"
|
|
udpString = "udp"
|
|
)
|
|
|
|
// Net is an implementation of the net.Net interface
|
|
// based on functions of the standard net package.
|
|
type Net struct {
|
|
interfaces []*transport.Interface
|
|
}
|
|
|
|
// NewNet creates a new StdNet instance.
|
|
func NewNet() (*Net, error) {
|
|
n := &Net{}
|
|
|
|
return n, n.UpdateInterfaces()
|
|
}
|
|
|
|
// Compile-time assertion
|
|
var _ transport.Net = &Net{}
|
|
|
|
// UpdateInterfaces updates the internal list of network interfaces
|
|
// and associated addresses.
|
|
func (n *Net) UpdateInterfaces() error {
|
|
ifs := []*transport.Interface{}
|
|
|
|
oifs, err := net.Interfaces()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, oif := range oifs {
|
|
ifc := transport.NewInterface(oif)
|
|
|
|
addrs, err := oif.Addrs()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, addr := range addrs {
|
|
ifc.AddAddress(addr)
|
|
}
|
|
|
|
ifs = append(ifs, ifc)
|
|
}
|
|
|
|
n.interfaces = ifs
|
|
|
|
return nil
|
|
}
|
|
|
|
// Interfaces returns a slice of interfaces which are available on the
|
|
// system
|
|
func (n *Net) Interfaces() ([]*transport.Interface, error) {
|
|
return n.interfaces, nil
|
|
}
|
|
|
|
// InterfaceByIndex returns the interface specified by index.
|
|
//
|
|
// On Solaris, it returns one of the logical network interfaces
|
|
// sharing the logical data link; for more precision use
|
|
// InterfaceByName.
|
|
func (n *Net) InterfaceByIndex(index int) (*transport.Interface, error) {
|
|
for _, ifc := range n.interfaces {
|
|
if ifc.Index == index {
|
|
return ifc, nil
|
|
}
|
|
}
|
|
|
|
return nil, fmt.Errorf("%w: index=%d", transport.ErrInterfaceNotFound, index)
|
|
}
|
|
|
|
// InterfaceByName returns the interface specified by name.
|
|
func (n *Net) InterfaceByName(name string) (*transport.Interface, error) {
|
|
for _, ifc := range n.interfaces {
|
|
if ifc.Name == name {
|
|
return ifc, nil
|
|
}
|
|
}
|
|
|
|
return nil, fmt.Errorf("%w: %s", transport.ErrInterfaceNotFound, name)
|
|
}
|
|
|
|
// ListenPacket announces on the local network address.
|
|
func (n *Net) ListenPacket(network string, address string) (net.PacketConn, error) {
|
|
return net.ListenPacket(network, address)
|
|
}
|
|
|
|
// ListenUDP acts like ListenPacket for UDP networks.
|
|
func (n *Net) ListenUDP(network string, locAddr *net.UDPAddr) (transport.UDPConn, error) {
|
|
return net.ListenUDP(network, locAddr)
|
|
}
|
|
|
|
// Dial connects to the address on the named network.
|
|
func (n *Net) Dial(network, address string) (net.Conn, error) {
|
|
return net.Dial(network, address)
|
|
}
|
|
|
|
// DialUDP acts like Dial for UDP networks.
|
|
func (n *Net) DialUDP(network string, laddr, raddr *net.UDPAddr) (transport.UDPConn, error) {
|
|
return net.DialUDP(network, laddr, raddr)
|
|
}
|
|
|
|
// ResolveIPAddr returns an address of IP end point.
|
|
func (n *Net) ResolveIPAddr(network, address string) (*net.IPAddr, error) {
|
|
return net.ResolveIPAddr(network, address)
|
|
}
|
|
|
|
// ResolveUDPAddr returns an address of UDP end point.
|
|
func (n *Net) ResolveUDPAddr(network, address string) (*net.UDPAddr, error) {
|
|
return net.ResolveUDPAddr(network, address)
|
|
}
|
|
|
|
// ResolveTCPAddr returns an address of TCP end point.
|
|
func (n *Net) ResolveTCPAddr(network, address string) (*net.TCPAddr, error) {
|
|
return net.ResolveTCPAddr(network, address)
|
|
}
|
|
|
|
// DialTCP acts like Dial for TCP networks.
|
|
func (n *Net) DialTCP(network string, laddr, raddr *net.TCPAddr) (transport.TCPConn, error) {
|
|
return net.DialTCP(network, laddr, raddr)
|
|
}
|
|
|
|
// ListenTCP acts like Listen for TCP networks.
|
|
func (n *Net) ListenTCP(network string, laddr *net.TCPAddr) (transport.TCPListener, error) {
|
|
l, err := net.ListenTCP(network, laddr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return tcpListener{l}, nil
|
|
}
|
|
|
|
type tcpListener struct {
|
|
*net.TCPListener
|
|
}
|
|
|
|
func (l tcpListener) AcceptTCP() (transport.TCPConn, error) {
|
|
return l.TCPListener.AcceptTCP()
|
|
}
|
|
|
|
type stdDialer struct {
|
|
*net.Dialer
|
|
}
|
|
|
|
func (d stdDialer) Dial(network, address string) (net.Conn, error) {
|
|
return d.Dialer.Dial(network, address)
|
|
}
|
|
|
|
// CreateDialer creates an instance of vnet.Dialer
|
|
func (n *Net) CreateDialer(d *net.Dialer) transport.Dialer {
|
|
return stdDialer{d}
|
|
}
|