initial commit

internal/util/tap/config.go

@@ -0,0 +1,9 @@
+package tap
+
+type Config struct {
+	Name    string
+	Net     string
+	MTU     int
+	Routes  []string
+	Gateway string
+}

internal/util/tap/conn.go

@@ -0,0 +1,61 @@
+package tap
+
+import (
+	"errors"
+	"net"
+	"time"
+
+	"github.com/songgao/water"
+)
+
+type Conn struct {
+	config *Config
+	ifce   *water.Interface
+	laddr  net.Addr
+	raddr  net.Addr
+}
+
+func NewConn(config *Config, ifce *water.Interface, laddr, raddr net.Addr) *Conn {
+	return &Conn{
+		config: config,
+		ifce:   ifce,
+		laddr:  laddr,
+		raddr:  raddr,
+	}
+}
+
+func (c *Conn) Config() *Config {
+	return c.config
+}
+
+func (c *Conn) Read(b []byte) (n int, err error) {
+	return c.ifce.Read(b)
+}
+
+func (c *Conn) Write(b []byte) (n int, err error) {
+	return c.ifce.Write(b)
+}
+
+func (c *Conn) Close() (err error) {
+	return c.ifce.Close()
+}
+
+func (c *Conn) LocalAddr() net.Addr {
+	return c.laddr
+}
+
+func (c *Conn) RemoteAddr() net.Addr {
+	return c.raddr
+}
+
+func (c *Conn) SetDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "tuntap", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *Conn) SetReadDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "tuntap", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *Conn) SetWriteDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "tuntap", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}