03e0084a39
error: casting to the same type is unnecessary Test: ./build.py --lto=thin Bug: 263153841 Change-Id: Ibf820a90c36c46155d07176b3194b460904140c9
35 lines
1.5 KiB
Rust
35 lines
1.5 KiB
Rust
// Copyright 2020, The Android Open Source Project
|
|
//
|
|
// Licensed 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.
|
|
|
|
//! Rust binding for getting the attestation application id.
|
|
|
|
use keystore2_aaid_bindgen::{
|
|
aaid_keystore_attestation_id, KEY_ATTESTATION_APPLICATION_ID_MAX_SIZE,
|
|
};
|
|
|
|
/// Returns the attestation application id for the given uid or an error code
|
|
/// corresponding to ::android::status_t.
|
|
pub fn get_aaid(uid: u32) -> Result<Vec<u8>, u32> {
|
|
let mut buffer = [0u8; KEY_ATTESTATION_APPLICATION_ID_MAX_SIZE];
|
|
let mut size = KEY_ATTESTATION_APPLICATION_ID_MAX_SIZE;
|
|
// Safety:
|
|
// aaid_keystore_attestation_id expects a buffer of exactly
|
|
// KEY_ATTESTATION_APPLICATION_ID_MAX_SIZE bytes and returns the number of bytes written
|
|
// in the second pointer argument.
|
|
let status = unsafe { aaid_keystore_attestation_id(uid, buffer.as_mut_ptr(), &mut size) };
|
|
match status {
|
|
0 => Ok(buffer[0..size].to_vec()),
|
|
status => Err(status),
|
|
}
|
|
}
|