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https://github.com/e1732a364fed/v2ray_simple.git
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a9a746ba2f
取消Client的LocalAddr，改为 LocalTCPAddr 和 LocalUDPAddr 删除direct中的对应条目。这样可更清晰地配置双本地地址 将设置sendthrough设置双地址的代码移动到 proxy.newClient函数 这样不仅direct可指定不同的tcp和udp的本地地址，任何client协议都可以了 为ClientCreator 接口 添加 UseUDPAsMsgConn 方法，direct和ss返回true 在ss的client的EstablishUDPChannel进行自行拨号 在ss的server建立后，自动循环监听udp，绕过vs的基本监听机制。因为vs架构的限制，一个代理只能有一个唯一的传输层协议。 ServerCreator 接口 添加 AfterCommonConfServer 方法
112 lines
2.4 KiB
Go
112 lines
2.4 KiB
Go
package simplesocks
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import (
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"bytes"
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"errors"
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"io"
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"net"
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"net/url"
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"github.com/e1732a364fed/v2ray_simple/netLayer"
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"github.com/e1732a364fed/v2ray_simple/proxy"
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"github.com/e1732a364fed/v2ray_simple/utils"
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)
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func init() {
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proxy.RegisterClient(Name, ClientCreator{})
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}
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type ClientCreator struct{ proxy.CreatorCommonStruct }
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func (ClientCreator) UseUDPAsMsgConn() bool {
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return false
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}
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func (ClientCreator) URLToDialConf(u *url.URL, dc *proxy.DialConf, format int) (*proxy.DialConf, error) {
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if dc == nil {
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dc = &proxy.DialConf{}
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}
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return dc, nil
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}
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func (ClientCreator) NewClient(dc *proxy.DialConf) (proxy.Client, error) {
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return &Client{}, nil
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}
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type Client struct {
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proxy.Base
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}
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func (*Client) GetCreator() proxy.ClientCreator {
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return ClientCreator{}
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}
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func (c *Client) Name() string {
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return Name
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}
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func WriteAddrToBuf(target netLayer.Addr, buf *bytes.Buffer) {
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if len(target.IP) > 0 {
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if ip4 := target.IP.To4(); ip4 == nil {
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buf.WriteByte(ATypIP6)
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buf.Write(target.IP)
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} else {
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buf.WriteByte(ATypIP4)
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buf.Write(ip4)
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}
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} else if l := len(target.Name); l > 0 {
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buf.WriteByte(ATypDomain)
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buf.WriteByte(byte(l))
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buf.WriteString(target.Name)
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}
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buf.WriteByte(byte(target.Port >> 8))
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buf.WriteByte(byte(target.Port << 8 >> 8))
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}
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func (c *Client) Handshake(underlay net.Conn, firstPayload []byte, target netLayer.Addr) (io.ReadWriteCloser, error) {
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if target.Port <= 0 {
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return nil, errors.New("simplesocks Client Handshake failed, target port invalid")
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}
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buf := utils.GetBuf()
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buf.WriteByte(CmdTCP)
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WriteAddrToBuf(target, buf)
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if len(firstPayload) > 0 {
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buf.Write(firstPayload)
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utils.PutBytes(firstPayload)
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}
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_, err := underlay.Write(buf.Bytes())
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utils.PutBuf(buf)
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if err != nil {
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return nil, err
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}
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return &TCPConn{
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Conn: underlay,
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underlayIsBasic: netLayer.IsBasicConn(underlay),
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}, nil
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}
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func (c *Client) EstablishUDPChannel(underlay net.Conn, firstPayload []byte, target netLayer.Addr) (netLayer.MsgConn, error) {
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if target.Port <= 0 {
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return nil, errors.New("simplesocks Client EstablishUDPChannel failed, target port invalid")
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}
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buf := utils.GetBuf()
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buf.WriteByte(CmdUDP)
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WriteAddrToBuf(target, buf)
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uc := NewUDPConn(underlay, nil)
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uc.handshakeBuf = buf
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uc.fullcone = c.IsFullcone
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if len(firstPayload) == 0 {
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return uc, nil
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} else {
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return uc, uc.WriteMsgTo(firstPayload, target)
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}
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}
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