mirror of
https://github.com/fatedier/frp.git
synced 2025-05-29 19:48:25 +00:00
46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
// Copyright 2025 The frp Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package net
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"net"
|
|
|
|
pp "github.com/pires/go-proxyproto"
|
|
)
|
|
|
|
func BuildProxyProtocolHeaderStruct(srcAddr, dstAddr net.Addr, version string) *pp.Header {
|
|
var versionByte byte
|
|
if version == "v1" {
|
|
versionByte = 1
|
|
} else {
|
|
versionByte = 2 // default to v2
|
|
}
|
|
return pp.HeaderProxyFromAddrs(versionByte, srcAddr, dstAddr)
|
|
}
|
|
|
|
func BuildProxyProtocolHeader(srcAddr, dstAddr net.Addr, version string) ([]byte, error) {
|
|
h := BuildProxyProtocolHeaderStruct(srcAddr, dstAddr, version)
|
|
|
|
// Convert header to bytes using a buffer
|
|
var buf bytes.Buffer
|
|
_, err := h.WriteTo(&buf)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to write proxy protocol header: %v", err)
|
|
}
|
|
return buf.Bytes(), nil
|
|
}
|