| // 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 serde::{Deserialize, Serialize}; |
| |
| use crate::error::IpcError; |
| |
| // Intra-Process-Communication |
| // Developer should split a process into two partitions, App and TEE. |
| |
| // Caller of an IPC function |
| // Generic U: ArgmentsInfo type |
| // Generic V: ReturnInfo type |
| pub trait IpcSender { |
| fn invoke<U, V>(&mut self, cmd: u32, input: U) -> std::result::Result<V, IpcError> |
| where |
| U: Serialize, |
| V: for<'de> Deserialize<'de>; |
| } |
| |
| // Service Instance of an IPC function |
| // Generic U: ArgmentsInfo type |
| // Generic V: ReturnInfo type |
| pub trait IpcService<U, V> |
| where |
| U: for<'de> Deserialize<'de>, |
| V: Serialize, |
| { |
| fn handle_invoke(&self, input: U) -> teaclave_types::TeeServiceResult<V>; |
| } |
| |
| // Callee of an IPC function |
| // Generic U: ArgmentsInfo type |
| // Generic V: ReturnInfo type |
| // Generic X: Service Instance that serves of <U, V> |
| // Dispatch a received input to a specific service instance. |
| pub trait IpcReceiver { |
| fn dispatch<U, V, X>(input: &[u8], x: X) -> anyhow::Result<Vec<u8>> |
| where |
| U: for<'de> Deserialize<'de>, |
| V: Serialize, |
| X: IpcService<U, V>; |
| } |
| |
| cfg_if::cfg_if! { |
| if #[cfg(feature = "app")] { |
| pub(crate) mod app; |
| pub use app::ECallChannel; |
| } else if #[cfg(feature = "mesalock_sgx")] { |
| mod enclave; |
| pub use enclave::ECallReceiver; |
| } |
| } |