| // Copyright (C) 2017-2018 Baidu, Inc. All Rights Reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in |
| // the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Baidu, Inc., nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| use sgx_types::*; |
| use sgx_trts::enclave; |
| use sync::SgxThreadSpinlock; |
| use path::{Path, PathBuf}; |
| use io; |
| use core::sync::atomic::{AtomicU64, Ordering}; |
| |
| pub use sgx_trts::enclave::SgxThreadPolicy; |
| |
| static LOCK: SgxThreadSpinlock = SgxThreadSpinlock::new(); |
| static mut ENCLAVE_PATH: Option<PathBuf> = None; |
| static ENCLAVE_ID: AtomicU64 = AtomicU64::new(0); |
| |
| /// |
| /// get_enclave_base is to get enclave map base address. |
| /// |
| #[inline] |
| pub fn get_enclave_base() -> * const u8 { |
| enclave::rsgx_get_enclave_base() |
| } |
| |
| /// |
| /// get_enclave_size is to get enclave map size. |
| /// |
| #[inline] |
| pub fn get_enclave_size() -> usize { |
| enclave::rsgx_get_enclave_size() |
| } |
| |
| /// |
| /// get_heap_base is to get heap base address. |
| /// |
| #[inline] |
| pub fn get_heap_base() -> * const u8 { |
| enclave::rsgx_get_heap_base() |
| } |
| |
| /// |
| /// get_heap_size is to get heap size. |
| /// |
| #[inline] |
| pub fn get_heap_size() -> usize { |
| enclave::rsgx_get_heap_size() |
| } |
| |
| /// |
| /// get_thread_policy is to get TCS policy. |
| /// |
| #[inline] |
| pub fn get_thread_policy() -> SgxThreadPolicy { |
| enclave::rsgx_get_thread_policy() |
| } |
| |
| /// |
| /// get_enclave_id is to get enclave ID. |
| /// |
| pub fn get_enclave_id() -> sgx_enclave_id_t { |
| ENCLAVE_ID.load(Ordering::SeqCst) as sgx_enclave_id_t |
| } |
| |
| /// |
| /// set_enclave_id is to set enclave ID. |
| /// |
| pub fn set_enclave_id(eid: sgx_enclave_id_t) { |
| ENCLAVE_ID.store(eid as u64, Ordering::SeqCst); |
| } |
| |
| /// |
| /// get_enclave_path is to get the path or name of the enclave. |
| /// |
| pub fn get_enclave_path() -> Option<PathBuf> { |
| unsafe { |
| LOCK.lock(); |
| let path = ENCLAVE_PATH.as_ref().map(|p| p.to_owned()); |
| LOCK.unlock(); |
| path |
| } |
| } |
| |
| /// |
| /// set_enclave_path is to set the path or name of the enclave. |
| /// |
| pub fn set_enclave_path<P: AsRef<Path>>(path: P) -> io::Result<()> { |
| unsafe { |
| LOCK.lock(); |
| if ENCLAVE_PATH.is_none() { |
| ENCLAVE_PATH = Some(path.as_ref().to_owned()); |
| } |
| LOCK.unlock(); |
| Ok(()) |
| } |
| } |