66 lines
1.3 KiB
Go
66 lines
1.3 KiB
Go
package dtls
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import (
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"context"
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"crypto/tls"
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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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"github.com/go-gost/x/registry"
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"github.com/pion/dtls/v2"
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)
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func init() {
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registry.DialerRegistry().Register("dtls", NewDialer)
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}
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type dtlsDialer 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 &dtlsDialer{
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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 *dtlsDialer) Init(md md.Metadata) (err error) {
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return d.parseMetadata(md)
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}
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func (d *dtlsDialer) 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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conn, err := options.NetDialer.Dial(ctx, "udp", addr)
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if err != nil {
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d.logger.Error(err)
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}
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tlsCfg := d.options.TLSConfig
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if tlsCfg == nil {
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tlsCfg = &tls.Config{}
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}
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config := dtls.Config{
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Certificates: tlsCfg.Certificates,
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InsecureSkipVerify: tlsCfg.InsecureSkipVerify,
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ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
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ServerName: tlsCfg.ServerName,
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RootCAs: tlsCfg.RootCAs,
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}
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return dtls.ClientWithContext(ctx, conn, &config)
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}
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