| // 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 |
| } |
