33 lines
943 B
Go
33 lines
943 B
Go
// 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
|
|
}
|