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// Copyright 2019 The gVisor 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.
// +build linux
package fdbased
import (
"reflect"
"unsafe"
)
const virtioNetHdrSize = int(unsafe.Sizeof(virtioNetHdr{}))
func vnetHdrToByteSlice(hdr *virtioNetHdr) (slice []byte) {
sh := (*reflect.SliceHeader)(unsafe.Pointer(&slice))
sh.Data = uintptr(unsafe.Pointer(hdr))
sh.Len = virtioNetHdrSize
sh.Cap = virtioNetHdrSize
return
}
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