ginuerzh
64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
package udp
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import (
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"context"
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"net"
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"github.com/go-gost/core/dialer"
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"github.com/go-gost/core/logger"
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md "github.com/go-gost/core/metadata"
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xctx "github.com/go-gost/x/ctx"
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"github.com/go-gost/x/internal/net/proxyproto"
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"github.com/go-gost/x/registry"
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)
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func init() {
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registry.DialerRegistry().Register("udp", NewDialer)
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}
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type udpDialer struct {
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md metadata
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logger logger.Logger
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options dialer.Options
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}
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func NewDialer(opts ...dialer.Option) dialer.Dialer {
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options := &dialer.Options{}
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for _, opt := range opts {
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opt(options)
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}
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return &udpDialer{
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logger: options.Logger,
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options: *options,
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}
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}
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func (d *udpDialer) Init(md md.Metadata) (err error) {
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return d.parseMetadata(md)
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}
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func (d *udpDialer) Dial(ctx context.Context, addr string, opts ...dialer.DialOption) (net.Conn, error) {
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var options dialer.DialOptions
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for _, opt := range opts {
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opt(&options)
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}
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c, err := options.Dialer.Dial(ctx, "udp", addr)
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if err != nil {
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return nil, err
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}
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c = &conn{
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UDPConn: c.(*net.UDPConn),
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}
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c = proxyproto.WrapClientConn(
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d.options.ProxyProtocol,
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xctx.SrcAddrFromContext(ctx),
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xctx.DstAddrFromContext(ctx),
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c)
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return c, nil
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}
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