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 optee_teec::{Context, Operation, ParamNone, ParamTmpRef, Session, Uuid};
19 use proto::{Command, UUID};
20
random(session: &mut Session) -> optee_teec::Result<()>21 fn random(session: &mut Session) -> optee_teec::Result<()> {
22 let mut random_uuid = [0u8; 16];
23
24 let p0 = ParamTmpRef::new_output(&mut random_uuid);
25 let mut operation = Operation::new(0, p0, ParamNone, ParamNone, ParamNone);
26
27 println!("Invoking TA to generate random UUID...");
28 session.invoke_command(Command::RandomGenerator as u32, &mut operation)?;
29 println!("Invoking done!");
30
31 let generate_uuid = Uuid::from_slice(&random_uuid).unwrap();
32
33 println!("Generate random UUID: {}", generate_uuid);
34 Ok(())
35 }
36
main() -> optee_teec::Result<()>37 fn main() -> optee_teec::Result<()> {
38 let mut ctx = Context::new()?;
39
40 let uuid = Uuid::parse_str(UUID).unwrap();
41 let mut session = ctx.open_session(uuid)?;
42
43 random(&mut session)?;
44
45 println!("Success");
46 Ok(())
47 }
48