Skip to content

Commit

Permalink
fix(sim): updated associated storage on deploy rules, RPC error codes
Browse files Browse the repository at this point in the history
  • Loading branch information
dancoombs committed Sep 7, 2023
1 parent 51b48ec commit f1fc290
Show file tree
Hide file tree
Showing 4 changed files with 31 additions and 40 deletions.
54 changes: 22 additions & 32 deletions src/common/simulation.rs
Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,7 @@ where
&entry_point_out,
self.sim_settings,
);

let is_unstaked_wallet_creation = entity_infos
.get(EntityType::Factory)
.filter(|factory| !factory.is_staked)
Expand Down Expand Up @@ -253,9 +254,7 @@ where
for &slot in slots {
let restriction = get_storage_restriction(GetStorageRestrictionArgs {
slots_by_address: &tracer_out.associated_slots_by_address,
entity,
is_unstaked_wallet_creation,
entry_point_address: self.entry_point.address(),
entity_address: entity_info.address,
sender_address,
accessed_address: address,
Expand Down Expand Up @@ -477,10 +476,20 @@ pub enum SimulationViolation {
UsedForbiddenOpcode(Entity, Address, ViolationOpCode),
#[display("{0.kind} uses banned precompile: {2:?} in contract {1:?}")]
UsedForbiddenPrecompile(Entity, Address, Address),
#[display(
"{0.kind} tried to access code at {1} during validation, but that address is not a contract"
)]
AccessedUndeployedContract(Entity, Address),
#[display("factory may only call CREATE2 once during initialization")]
FactoryCalledCreate2Twice(Address),
#[display("{0.kind} accessed forbidden storage at address {1:?} during validation")]
InvalidStorageAccess(Entity, StorageSlot),
#[display("{0.kind} called entry point method other than depositTo")]
CalledBannedEntryPointMethod(Entity),
#[display("{0.kind} must not send ETH during validation (except from account to entry point)")]
CallHadValue(Entity),
#[display("code accessed by validation has changed since the last time validation was run")]
CodeHashChanged,
#[display("{0.kind} must be staked")]
NotStaked(Entity, U256, U256),
#[display("reverted while simulating {0} validation")]
Expand All @@ -489,18 +498,8 @@ pub enum SimulationViolation {
DidNotRevert,
#[display("simulateValidation should have 3 parts but had {0} instead. Make sure your EntryPoint is valid")]
WrongNumberOfPhases(u32),
#[display("{0.kind} must not send ETH during validation (except from account to entry point)")]
CallHadValue(Entity),
#[display("ran out of gas during {0.kind} validation")]
OutOfGas(Entity),
#[display(
"{0.kind} tried to access code at {1} during validation, but that address is not a contract"
)]
AccessedUndeployedContract(Entity, Address),
#[display("{0.kind} called entry point method other than depositTo")]
CalledBannedEntryPointMethod(Entity),
#[display("code accessed by validation has changed since the last time validation was run")]
CodeHashChanged,
#[display("aggregator signature validation failed")]
AggregatorValidationFailed,
}
Expand Down Expand Up @@ -615,9 +614,7 @@ enum StorageRestriction {
#[derive(Clone, Copy, Debug)]
struct GetStorageRestrictionArgs<'a> {
slots_by_address: &'a AssociatedSlotsByAddress,
entity: Entity,
is_unstaked_wallet_creation: bool,
entry_point_address: Address,
entity_address: Address,
sender_address: Address,
accessed_address: Address,
Expand All @@ -627,34 +624,27 @@ struct GetStorageRestrictionArgs<'a> {
fn get_storage_restriction(args: GetStorageRestrictionArgs) -> StorageRestriction {
let GetStorageRestrictionArgs {
slots_by_address,
entity,
is_unstaked_wallet_creation,
entry_point_address,
entity_address,
sender_address,
accessed_address,
slot,
..
} = args;
if accessed_address == sender_address {
StorageRestriction::Allowed
} else if slots_by_address.is_associated_slot(sender_address, slot) {
if is_unstaked_wallet_creation
&& entity.kind != EntityType::Account
&& accessed_address != entry_point_address
{
// We deviate from the letter of ERC-4337 to allow an unstaked
// sender to access its own associated storage during account
// creation, based on discussion with the ERC authors.
//
// We also deviate by allowing unstaked access to the sender's
// associated storage on the entry point during account creation.
// Without this, several spec tests fail because the `SimpleWallet`
// used in the tests deposits in its constructor, which causes the
// factory to access the sender's associated storage on the entry
// point.
StorageRestriction::NeedsStake
} else {
tracing::info!(
"Accessed associated storage slot: {:?} entity_address {:?}",
slot,
entity_address
);

// Allow entities to access associated storage unless its during an unstaked wallet creation
if !is_unstaked_wallet_creation {
StorageRestriction::Allowed
} else {
StorageRestriction::NeedsStake
}
} else if accessed_address == entity_address
|| slots_by_address.is_associated_slot(entity_address, slot)
Expand Down
8 changes: 4 additions & 4 deletions src/rpc/eth/error.rs
Original file line number Diff line number Diff line change
Expand Up @@ -46,9 +46,9 @@ pub enum EthRpcError {
/// Opcode violation
#[error("{0} uses banned opcode: {1:?}")]
OpcodeViolation(EntityType, Opcode),
/// Precompile violation, maps to Opcode Violation
#[error("{0} uses banned precompile: {1:?}")]
PrecompileViolation(EntityType, Address),
/// Used for other simulation violations that map to Opcode Violations
#[error("{0}")]
OpcodeViolationMap(SimulationError),
/// Invalid storage access, maps to Opcode Violation
#[error("{0} accesses inaccessible storage at address: {1:?} slot: {2:#032x}")]
InvalidStorageAccess(EntityType, Address, U256),
Expand Down Expand Up @@ -150,7 +150,7 @@ impl From<EthRpcError> for RpcError {
rpc_err_with_data(PAYMASTER_VALIDATION_REJECTED_CODE, msg, data)
}
EthRpcError::OpcodeViolation(_, _)
| EthRpcError::PrecompileViolation(_, _)
| EthRpcError::OpcodeViolationMap(_)
| EthRpcError::InvalidStorageAccess(_, _, _) => rpc_err(OPCODE_VIOLATION_CODE, msg),
EthRpcError::OutOfTimeRange(data) => {
rpc_err_with_data(OUT_OF_TIME_RANGE_CODE, msg, data)
Expand Down
7 changes: 4 additions & 3 deletions src/rpc/eth/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -661,9 +661,10 @@ impl From<SimulationError> for EthRpcError {
SimulationViolation::UsedForbiddenOpcode(entity, _, op) => {
Self::OpcodeViolation(entity.kind, op.clone().0)
}
SimulationViolation::UsedForbiddenPrecompile(entity, _, precompile) => {
Self::PrecompileViolation(entity.kind, *precompile)
}
SimulationViolation::UsedForbiddenPrecompile(_, _, _)
| SimulationViolation::AccessedUndeployedContract(_, _)
| SimulationViolation::CalledBannedEntryPointMethod(_)
| SimulationViolation::CallHadValue(_) => Self::OpcodeViolationMap(value),
SimulationViolation::FactoryCalledCreate2Twice(_) => {
Self::OpcodeViolation(EntityType::Factory, Opcode::CREATE2)
}
Expand Down

0 comments on commit f1fc290

Please sign in to comment.