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 #![no_std]
19 #![no_main]
20 #![feature(c_size_t)]
21
22 use optee_utee::BigInt;
23 use optee_utee::{
24 ta_close_session, ta_create, ta_destroy, ta_invoke_command, ta_open_session, trace_println,
25 };
26 use optee_utee::{Error, ErrorKind, Parameters, Result};
27 use proto::Command;
28
29 #[ta_create]
create() -> Result<()>30 fn create() -> Result<()> {
31 trace_println!("[+] TA create");
32 Ok(())
33 }
34
35 #[ta_open_session]
open_session(_params: &mut Parameters) -> Result<()>36 fn open_session(_params: &mut Parameters) -> Result<()> {
37 trace_println!("[+] TA open session");
38 Ok(())
39 }
40
41 #[ta_close_session]
close_session()42 fn close_session() {
43 trace_println!("[+] TA close session");
44 }
45
46 #[ta_destroy]
destroy()47 fn destroy() {
48 trace_println!("[+] TA destroy");
49 }
50
compare(n0: &BigInt, n1: &BigInt) -> Result<()>51 fn compare(n0: &BigInt, n1: &BigInt) -> Result<()> {
52 match n0.compare_big_int(n1) {
53 0 => trace_println!("{} == {}.", n0, n1),
54 res if res > 0 => trace_println!("{} > {}.", n0, n1),
55 _ => trace_println!("{} < {}.", n0, n1),
56 }
57 Ok(())
58 }
59
convert(n0: &BigInt, n1: &BigInt) -> Result<()>60 fn convert(n0: &BigInt, n1: &BigInt) -> Result<()> {
61 trace_println!(
62 "{} in u8 array is {:x?}.",
63 n0,
64 n0.convert_to_octet_string().unwrap()
65 );
66 trace_println!("{} in i32 is {}.", n1, n1.convert_to_s32().unwrap());
67 Ok(())
68 }
69
add(n0: &BigInt, n1: &BigInt) -> Result<()>70 fn add(n0: &BigInt, n1: &BigInt) -> Result<()> {
71 let res = BigInt::add(n0, n1);
72 trace_println!("{} + {} = {}.", n0, n1, res);
73 Ok(())
74 }
75
sub(n0: &BigInt, n1: &BigInt) -> Result<()>76 fn sub(n0: &BigInt, n1: &BigInt) -> Result<()> {
77 let res = BigInt::sub(n0, n1);
78 trace_println!("{} - {} = {}.", n0, n1, res);
79 Ok(())
80 }
81
multiply(n0: &BigInt, n1: &BigInt) -> Result<()>82 fn multiply(n0: &BigInt, n1: &BigInt) -> Result<()> {
83 let res = BigInt::multiply(n0, n1);
84 trace_println!("{} * {} = {}.", n0, n1, res);
85 Ok(())
86 }
87
divide(n0: &BigInt, n1: &BigInt) -> Result<()>88 fn divide(n0: &BigInt, n1: &BigInt) -> Result<()> {
89 let (quot, rem) = BigInt::divide(n0, n1);
90 trace_println!("{} / {} = {}, ramians {}.", n0, n1, quot, rem);
91 Ok(())
92 }
93
module(n0: &BigInt, n1: &BigInt) -> Result<()>94 fn module(n0: &BigInt, n1: &BigInt) -> Result<()> {
95 let res = BigInt::module(n0, n1);
96 trace_println!("{} % {} = {}.", n0, n1, res);
97 Ok(())
98 }
99
100 #[ta_invoke_command]
invoke_command(cmd_id: u32, params: &mut Parameters) -> Result<()>101 fn invoke_command(cmd_id: u32, params: &mut Parameters) -> Result<()> {
102 trace_println!("[+] TA invoke command");
103 let mut n0_buffer = unsafe { params.0.as_memref().unwrap() };
104 let n1_value = unsafe { params.1.as_value().unwrap() };
105
106 let mut n0 = BigInt::new(64);
107 let mut n1 = BigInt::new(2);
108
109 n0.convert_from_octet_string(n0_buffer.buffer(), 0)?;
110 n1.convert_from_s32(n1_value.a() as i32);
111
112 match Command::from(cmd_id) {
113 Command::Compare => compare(&n0, &n1),
114 Command::Convert => convert(&n0, &n1),
115 Command::Add => add(&n0, &n1),
116 Command::Sub => sub(&n0, &n1),
117 Command::Multiply => multiply(&n0, &n1),
118 Command::Divide => divide(&n0, &n1),
119 Command::Module => module(&n0, &n1),
120 _ => Err(Error::new(ErrorKind::BadParameters)),
121 }
122 }
123
124 // TA configurations
125 const TA_FLAGS: u32 = 0;
126 const TA_DATA_SIZE: u32 = 32 * 1024;
127 const TA_STACK_SIZE: u32 = 2 * 1024;
128 const TA_VERSION: &[u8] = b"0.1\0";
129 const TA_DESCRIPTION: &[u8] = b"Example of TA using arithmeitcal APIs.\0";
130 const EXT_PROP_VALUE_1: &[u8] = b"Big int TA\0";
131 const EXT_PROP_VALUE_2: u32 = 0x0010;
132 const TRACE_LEVEL: i32 = 4;
133 const TRACE_EXT_PREFIX: &[u8] = b"TA\0";
134 const TA_FRAMEWORK_STACK_SIZE: u32 = 2048;
135
136 include!(concat!(env!("OUT_DIR"), "/user_ta_header.rs"));
137