mirror of https://github.com/fatedier/frp.git
46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
// Copyright 2025 The frp Authors
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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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package net
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import (
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"bytes"
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"fmt"
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"net"
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pp "github.com/pires/go-proxyproto"
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)
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func BuildProxyProtocolHeaderStruct(srcAddr, dstAddr net.Addr, version string) *pp.Header {
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var versionByte byte
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if version == "v1" {
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versionByte = 1
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} else {
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versionByte = 2 // default to v2
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}
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return pp.HeaderProxyFromAddrs(versionByte, srcAddr, dstAddr)
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}
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func BuildProxyProtocolHeader(srcAddr, dstAddr net.Addr, version string) ([]byte, error) {
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h := BuildProxyProtocolHeaderStruct(srcAddr, dstAddr, version)
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// Convert header to bytes using a buffer
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var buf bytes.Buffer
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_, err := h.WriteTo(&buf)
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if err != nil {
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return nil, fmt.Errorf("failed to write proxy protocol header: %v", err)
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}
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return buf.Bytes(), nil
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}
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