1 // Licensed to the Apache Software Foundation (ASF) under one 2 // or more contributor license agreements. See the NOTICE file 3 // distributed with this work for additional information 4 // regarding copyright ownership. The ASF licenses this file 5 // to you under the Apache License, Version 2.0 (the 6 // "License"); you may not use this file except in compliance 7 // with the License. You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, 12 // software distributed under the License is distributed on an 13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 14 // KIND, either express or implied. See the License for the 15 // specific language governing permissions and limitations 16 // under the License. 17 18 use crate::{Error, Result, Uuid}; 19 use optee_utee_sys as raw; 20 #[cfg(not(feature = "std"))] 21 use alloc::vec::Vec; 22 #[cfg(not(feature = "std"))] 23 use alloc::borrow::ToOwned; 24 25 pub struct LoadablePlugin { 26 uuid: Uuid 27 } 28 29 impl LoadablePlugin { new(uuid: &Uuid) -> Self30 pub fn new(uuid: &Uuid) -> Self { 31 Self { uuid: uuid.to_owned() } 32 } invoke(&mut self, command_id: u32, subcommand_id: u32, data: &[u8]) -> Result<Vec<u8>>33 pub fn invoke(&mut self, command_id: u32, subcommand_id: u32, data: &[u8]) -> Result<Vec<u8>> { 34 let raw_uuid: Uuid = self.uuid; 35 let mut outlen: usize = 0; 36 match unsafe { 37 raw::tee_invoke_supp_plugin( 38 raw_uuid.as_raw_ptr(), 39 command_id as u32, 40 subcommand_id as u32, 41 data.as_ptr() as _, 42 data.len(), 43 &mut outlen as *mut usize, 44 ) 45 } { 46 raw::TEE_SUCCESS => { 47 assert!(outlen <= (data.len())); 48 let mut outbuf = vec![0; outlen]; 49 outbuf.copy_from_slice(&data[..outlen]); 50 51 Ok(outbuf) 52 }, 53 code => Err(Error::from_raw_error(code)), 54 } 55 56 } 57 } 58