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v2ray-core/transport/internet/tls/tls.go

68 lines
1.4 KiB

// +build !confonly
package tls
import (
"crypto/tls"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/net"
utls "github.com/refraction-networking/utls"
)
//go:generate errorgen
var (
_ buf.Writer = (*conn)(nil)
)
type conn struct {
*tls.Conn
}
func (c *conn) WriteMultiBuffer(mb buf.MultiBuffer) error {
mb = buf.Compact(mb)
mb, err := buf.WriteMultiBuffer(c, mb)
buf.ReleaseMulti(mb)
return err
}
func (c *conn) HandshakeAddress() net.Address {
if err := c.Handshake(); err != nil {
return nil
}
state := c.Conn.ConnectionState()
if state.ServerName == "" {
return nil
}
return net.ParseAddress(state.ServerName)
}
// Client initiates a TLS client handshake on the given connection.
func Client(c net.Conn, config *tls.Config) net.Conn {
tlsConn := tls.Client(c, config)
return &conn{Conn: tlsConn}
}
func copyConfig(c *tls.Config) *utls.Config {
return &utls.Config{
NextProtos: c.NextProtos,
ServerName: c.ServerName,
InsecureSkipVerify: c.InsecureSkipVerify,
MinVersion: utls.VersionTLS12,
MaxVersion: utls.VersionTLS12,
}
}
func UClient(c net.Conn, config *tls.Config) net.Conn {
uConfig := copyConfig(config)
return utls.Client(c, uConfig)
}
// Server initiates a TLS server handshake on the given connection.
func Server(c net.Conn, config *tls.Config) net.Conn {
tlsConn := tls.Server(c, config)
return &conn{Conn: tlsConn}
}