| // 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 optee_teec_sys as raw; |
| use libc::{c_char}; |
| use crate::{Result, Error, ErrorKind}; |
| |
| #[repr(C)] |
| pub struct PluginMethod { |
| pub name: *const c_char, |
| pub uuid: raw::TEEC_UUID, |
| pub init: fn() -> Result<()>, |
| pub invoke: fn( |
| cmd: u32, |
| sub_cmd: u32, |
| data: *mut c_char, |
| in_len: u32, |
| out_len: *mut u32, |
| ) -> Result<()>, |
| } |
| |
| /// struct PluginParameters { |
| /// @cmd: u32, plugin cmd, defined in proto/ |
| /// @sub_cmd: u32, plugin subcmd, defined in proto/ |
| /// @inout: &'a mut [u8], input/output buffer shared with TA and plugin |
| /// @outlen, length of output sent to TA |
| /// } |
| pub struct PluginParameters<'a> { |
| pub cmd: u32, |
| pub sub_cmd: u32, |
| pub inout: &'a mut [u8], |
| outlen: usize, |
| } |
| impl<'a> PluginParameters<'a> { |
| pub fn new(cmd: u32, sub_cmd: u32, inout: &'a mut [u8]) -> Self { |
| Self { |
| cmd: cmd, |
| sub_cmd: sub_cmd, |
| inout: inout, |
| outlen: 0 as usize, |
| } |
| } |
| pub fn set_buf_from_slice(&mut self, sendslice: &[u8]) -> Result<()> { |
| if self.inout.len() < sendslice.len() { |
| println!("Overflow: Input length is less than output length"); |
| return Err(Error::new(ErrorKind::Security)); |
| } |
| self.outlen = sendslice.len() as usize; |
| self.inout[..self.outlen].copy_from_slice(&sendslice); |
| Ok(()) |
| } |
| pub fn get_out_slice(&self) -> &[u8] { |
| &self.inout[..self.outlen] |
| } |
| } |