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EVMHost: Add size%192 check to bn128pairing

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And also refactor resultWithFailure
This commit is contained in:
Alex Beregszaszi
2022-09-26 21:06:33 +02:00
parent 8b7010872c
commit f40d1d654d
2 changed files with 15 additions and 8 deletions
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test/EVMHost.cpp
+14 -8
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@@ -495,9 +495,7 @@ evmc::result EVMHost::precompileIdentity(evmc_message const& _message) noexcept
evmc::result EVMHost::precompileModExp(evmc_message const&) noexcept
{
// TODO implement
evmc::result result({});
result.status_code = EVMC_FAILURE;
return result;
return resultWithFailure();
}
evmc::result EVMHost::precompileALTBN128G1Add(evmc_message const& _message) noexcept
@@ -773,6 +771,11 @@ evmc::result EVMHost::precompileALTBN128G1Mul(evmc_message const& _message) noex
evmc::result EVMHost::precompileALTBN128PairingProduct(evmc_message const& _message) noexcept
{
// Input must be divisible by 192.
// TODO: validate points
if (_message.input_size % 192)
return resultWithFailure();
// This is a partial implementation - it always returns "success"
bytes static data = fromHex("0000000000000000000000000000000000000000000000000000000000000001");
return resultWithGas(_message, data);
@@ -786,11 +789,14 @@ evmc::result EVMHost::precompileGeneric(
if (_inOut.count(input))
return resultWithGas(_message, _inOut.at(input));
else
{
evmc::result result({});
result.status_code = EVMC_FAILURE;
return result;
}
return resultWithFailure();
}
evmc::result EVMHost::resultWithFailure() noexcept
{
evmc::result result({});
result.status_code = EVMC_FAILURE;
return result;
}
evmc::result EVMHost::resultWithGas(