| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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.. |
| |
| use alloc_crate::slice; |
| use core::mem; |
| |
| pub fn hashmap_random_keys() -> (u64, u64) { |
| let mut v = (0, 0); |
| unsafe { |
| let view = slice::from_raw_parts_mut(&mut v as *mut _ as *mut u8, mem::size_of_val(&v)); |
| imp::fill_bytes(view); |
| } |
| v |
| } |
| |
| mod imp { |
| use sgx_types::SgxError; |
| use sgx_trts::trts; |
| |
| fn getrandom(buf: &mut [u8]) -> SgxError { |
| trts::rsgx_read_rand(buf) |
| } |
| |
| fn getrandom_fill_bytes(v: &mut [u8]) { |
| getrandom(v).expect("unexpected getrandom error"); |
| } |
| |
| pub fn fill_bytes(v: &mut [u8]) { |
| getrandom_fill_bytes(v) |
| } |
| } |