mirror of
https://github.com/kubenetworks/kubevpn.git
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55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
/*
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* Copyright (c) 2019 by Farsight Security, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dnstap
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import (
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"io"
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"time"
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framestream "github.com/farsightsec/golang-framestream"
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)
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// A Reader is a source of dnstap frames.
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type Reader interface {
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ReadFrame([]byte) (int, error)
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}
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// ReaderOptions specifies configuration for the Reader.
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type ReaderOptions struct {
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// If Bidirectional is true, the underlying io.Reader must also
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// satisfy io.Writer, and the dnstap Reader will use the bidirectional
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// Frame Streams protocol.
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Bidirectional bool
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// Timeout sets the timeout for reading the initial handshake and
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// writing response control messages to the underlying Reader. Timeout
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// is only effective if the underlying Reader is a net.Conn.
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Timeout time.Duration
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}
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// NewReader creates a Reader using the given io.Reader and options.
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func NewReader(r io.Reader, opt *ReaderOptions) (Reader, error) {
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if opt == nil {
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opt = &ReaderOptions{}
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}
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return framestream.NewReader(r,
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&framestream.ReaderOptions{
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ContentTypes: [][]byte{FSContentType},
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Timeout: opt.Timeout,
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Bidirectional: opt.Bidirectional,
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})
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}
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