forked from AbleOS/ableos
Simplified signature checking in wasm jumploader
This commit is contained in:
parent
ae70548cc0
commit
86f466cdb0
|
@ -14,108 +14,24 @@ const SEND_SIGNAL_INDEX: usize = 1;
|
|||
pub struct HostExternals;
|
||||
impl HostExternals {
|
||||
fn check_signature(&self, index: usize, signature: &Signature) -> bool {
|
||||
match index {
|
||||
ADD_FUNC_INDEX => {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) =
|
||||
(&[ValueType::I32, ValueType::I32], Some(ValueType::I32));
|
||||
if params.len() != signature.params().len() {
|
||||
return false;
|
||||
}
|
||||
if ret_ty != signature.return_type() {
|
||||
return false;
|
||||
}
|
||||
for (ty, param) in params.iter().zip(signature.params()) {
|
||||
if *ty != *param {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
let (params, ret_ty): (&[_], _) = match index {
|
||||
ADD_FUNC_INDEX => (&[ValueType::I32, ValueType::I32], Some(ValueType::I32)),
|
||||
SEND_SIGNAL_INDEX => (&[ValueType::I32, ValueType::I32], Some(ValueType::I32)),
|
||||
GET_TIME_INDEX => (&[], Some(ValueType::I32)),
|
||||
GET_RANDOM_INDEX => (&[], Some(ValueType::I32)),
|
||||
GET_INPUT_INDEX => (&[], Some(ValueType::I32)),
|
||||
PRINT_CHAR => (&[ValueType::I32], None),
|
||||
_ => return false,
|
||||
};
|
||||
|
||||
SEND_SIGNAL_INDEX => {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) =
|
||||
(&[ValueType::I32, ValueType::I32], Some(ValueType::I32));
|
||||
if params.len() != signature.params().len() {
|
||||
return false;
|
||||
}
|
||||
if ret_ty != signature.return_type() {
|
||||
return false;
|
||||
}
|
||||
for (ty, param) in params.iter().zip(signature.params()) {
|
||||
if *ty != *param {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
|
||||
GET_TIME_INDEX => {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) =
|
||||
(&[], Some(ValueType::I32));
|
||||
if params.len() != signature.params().len() {
|
||||
return false;
|
||||
}
|
||||
if ret_ty != signature.return_type() {
|
||||
return false;
|
||||
}
|
||||
for (ty, param) in params.iter().zip(signature.params()) {
|
||||
if *ty != *param {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
|
||||
GET_RANDOM_INDEX => {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) =
|
||||
(&[], Some(ValueType::I32));
|
||||
if params.len() != signature.params().len() {
|
||||
return false;
|
||||
}
|
||||
if ret_ty != signature.return_type() {
|
||||
return false;
|
||||
}
|
||||
for (ty, param) in params.iter().zip(signature.params()) {
|
||||
if *ty != *param {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
|
||||
GET_INPUT_INDEX => {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) =
|
||||
(&[], Some(ValueType::I32));
|
||||
if params.len() != signature.params().len() {
|
||||
return false;
|
||||
}
|
||||
if ret_ty != signature.return_type() {
|
||||
return false;
|
||||
}
|
||||
for (ty, param) in params.iter().zip(signature.params()) {
|
||||
if *ty != *param {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
|
||||
PRINT_CHAR => {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) = (&[ValueType::I32], None);
|
||||
if params.len() != signature.params().len() {
|
||||
return false;
|
||||
}
|
||||
if ret_ty != signature.return_type() {
|
||||
return false;
|
||||
}
|
||||
for (ty, param) in params.iter().zip(signature.params()) {
|
||||
if *ty != *param {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
_ => false,
|
||||
if params.len() != signature.params().len() || ret_ty != signature.return_type() {
|
||||
false
|
||||
} else {
|
||||
params
|
||||
.iter()
|
||||
.zip(signature.params())
|
||||
.find(|(ty, param)| ty != param)
|
||||
.is_none()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue