2 *------------------------------------------------------------------
3 * Copyright (c) 2020 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
27 // memfdCreate returns memory file file descriptor (memif.sys_memfd_create)
28 func memfdCreate() (mfd int, err error) {
29 p0, err := syscall.BytePtrFromString("memif_region_0")
31 return -1, fmt.Errorf("memfdCreate: %s", err)
34 u_mfd, _, errno := syscall.Syscall(sys_memfd_create, uintptr(unsafe.Pointer(p0)), uintptr(mfd_allow_sealing), uintptr(0))
36 return -1, fmt.Errorf("memfdCreate: %s", os.NewSyscallError("memfd_create", errno))
39 return int(u_mfd), nil