feat: stabilize limiting functions number in a contract

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## [unreleased]
 
+### Protocol Changes
+* Limit number of wasm functions in one contract to 10_000. [#4954](https://github.com/near/nearcore/pull/4954)
+
+## `1.22.0` [11-15-2021]
+
 ### Protocol Changes
 * Upgrade from Wasmer 0 to Wasmer 2, bringing better performance and reliability. [#4934](https://github.com/near/nearcore/pull/4934)
 * Lower regular_op_cost (execution of a single WASM instruction) from 3_856_371 to 2_207_874. [#4979](https://github.com/near/nearcore/pull/4979)

core/primitives/Cargo.toml

@@ -43,9 +43,8 @@ protocol_feature_block_header_v3 = []
 protocol_feature_alt_bn128 = ["near-primitives-core/protocol_feature_alt_bn128", "near-vm-errors/protocol_feature_alt_bn128"]
 protocol_feature_chunk_only_producers = ["protocol_feature_block_header_v3"]
 protocol_feature_routing_exchange_algorithm = ["near-primitives-core/protocol_feature_routing_exchange_algorithm"]
-protocol_feature_limit_contract_functions_number = []
 protocol_feature_lower_regular_op_cost2 = []
-nightly_protocol_features = ["nightly_protocol", "protocol_feature_block_header_v3", "protocol_feature_alt_bn128", "protocol_feature_chunk_only_producers", "protocol_feature_routing_exchange_algorithm", "protocol_feature_limit_contract_functions_number", "protocol_feature_lower_regular_op_cost2"]
+nightly_protocol_features = ["nightly_protocol", "protocol_feature_block_header_v3", "protocol_feature_alt_bn128", "protocol_feature_chunk_only_producers", "protocol_feature_routing_exchange_algorithm", "protocol_feature_lower_regular_op_cost2"]
 nightly_protocol = []
 
 [dev-dependencies]

core/primitives/src/runtime/config_store.rs

@@ -18,8 +18,7 @@ static CONFIGS: &[(ProtocolVersion, &[u8])] = &[
     (0, include_config!("29.json")),
     (42, include_config!("42.json")),
     (48, include_config!("48.json")),
-    #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
-    (123, include_config!("123.json")),
+    (49, include_config!("49.json")),
     #[cfg(feature = "protocol_feature_lower_regular_op_cost2")]
     (124, include_config!("124.json")),
 ];
@@ -119,7 +118,6 @@ mod tests {
             "FF2Qg5qSM6iWQjD5ZyzEhdAV2g5MyQKXGYh4kyt8mMcE",
             "97UzHtVFBc4235jdur3DgNSUGNfGQfzRDLmAkYdZ19Re",
             "C6uw6BoeXr3KoKpVP34hBA7TqoywMbwMtJgqbTpPCiSB",
-            #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
             "AFpppR4PmSe4YBWzcyyH8vzLCeDbzfTRjeCGPVrmpPJj",
             #[cfg(feature = "protocol_feature_lower_regular_op_cost2")]
             "2cuq2HvuHT7Z27LUbgEtMxP2ejqrHK34J2V1GL1joiMn",

core/primitives/src/version.rs

@@ -114,6 +114,9 @@ pub enum ProtocolFeature {
     LowerDataReceiptAndEcrecoverBaseCost,
     /// Lowers the cost of wasm instruction due to switch to wasmer2.
     LowerRegularOpCost,
+    /// Limit number of wasm functions in one contract. See
+    /// <https://github.com/near/nearcore/pull/4954> for more details.
+    LimitContractFunctionsNumber,
 
     // nightly features
     #[cfg(feature = "protocol_feature_block_header_v3")]
@@ -124,10 +127,6 @@ pub enum ProtocolFeature {
     ChunkOnlyProducers,
     #[cfg(feature = "protocol_feature_routing_exchange_algorithm")]
     RoutingExchangeAlgorithm,
-    /// Limit number of wasm functions in one contract. See
-    /// <https://github.com/near/nearcore/pull/4954> for more details.
-    #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
-    LimitContractFunctionsNumber,
     /// Lowers the cost of wasm instruction due to switch to faster,
     /// compiler-intrinsics based gas counter.
     #[cfg(feature = "protocol_feature_lower_regular_op_cost2")]
@@ -138,7 +137,7 @@ pub enum ProtocolFeature {
 /// Some features (e. g. FixStorageUsage) require that there is at least one epoch with exactly
 /// the corresponding version
 #[cfg(not(feature = "nightly_protocol"))]
-pub const PROTOCOL_VERSION: ProtocolVersion = 48;
+pub const PROTOCOL_VERSION: ProtocolVersion = 49;
 
 /// Current latest nightly version of the protocol.
 #[cfg(feature = "nightly_protocol")]
@@ -165,6 +164,7 @@ impl ProtocolFeature {
             | ProtocolFeature::LowerDataReceiptAndEcrecoverBaseCost
             | ProtocolFeature::LowerRegularOpCost
             | ProtocolFeature::SimpleNightshade => 48,
+            ProtocolFeature::LimitContractFunctionsNumber => 49,
 
             // Nightly features
             #[cfg(feature = "protocol_feature_alt_bn128")]
@@ -175,8 +175,6 @@ impl ProtocolFeature {
             ProtocolFeature::ChunkOnlyProducers => 115,
             #[cfg(feature = "protocol_feature_routing_exchange_algorithm")]
             ProtocolFeature::RoutingExchangeAlgorithm => 117,
-            #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
-            ProtocolFeature::LimitContractFunctionsNumber => 123,
             #[cfg(feature = "protocol_feature_lower_regular_op_cost2")]
             ProtocolFeature::LowerRegularOpCost2 => 124,
         }

integration-tests/Cargo.toml

@@ -61,8 +61,7 @@ protocol_feature_alt_bn128 = [
 ]
 protocol_feature_block_header_v3 = ["near-primitives/protocol_feature_block_header_v3", "near-chain/protocol_feature_block_header_v3", "near-store/protocol_feature_block_header_v3"]
 protocol_feature_chunk_only_producers = ["near-client/protocol_feature_chunk_only_producers"]
-protocol_feature_limit_contract_functions_number = ["near-primitives/protocol_feature_limit_contract_functions_number", "near-vm-runner/protocol_feature_limit_contract_functions_number"]
-nightly_protocol_features = ["nearcore/nightly_protocol_features", "protocol_feature_alt_bn128", "protocol_feature_block_header_v3", "protocol_feature_limit_contract_functions_number"]
+nightly_protocol_features = ["nearcore/nightly_protocol_features", "protocol_feature_alt_bn128", "protocol_feature_block_header_v3"]
 nightly_protocol = ["nearcore/nightly_protocol"]
 sandbox = ["near-network/sandbox", "near-chain/sandbox", "node-runtime/sandbox", "near-client/sandbox"]
-no_cache = ["nearcore/no_cache"]
+no_cache = ["nearcore/no_cache"]

integration-tests/tests/client/process_blocks.rs

@@ -57,7 +57,6 @@ use near_primitives::types::validator_stake::ValidatorStake;
 use near_primitives::types::{AccountId, BlockHeight, EpochId, NumBlocks, ProtocolVersion};
 use near_primitives::utils::to_timestamp;
 use near_primitives::validator_signer::{InMemoryValidatorSigner, ValidatorSigner};
-#[cfg(feature = "protocol_feature_limit_contract_functions_number")]
 use near_primitives::version::ProtocolFeature;
 use near_primitives::version::PROTOCOL_VERSION;
 use near_primitives::views::{
@@ -3196,11 +3195,7 @@ fn test_validator_stake_host_function() {
 fn test_limit_contract_functions_number_upgrade() {
     let functions_number_limit: u32 = 10_000;
 
-    #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
     let old_protocol_version = ProtocolFeature::LimitContractFunctionsNumber.protocol_version() - 1;
-    #[cfg(not(feature = "protocol_feature_limit_contract_functions_number"))]
-    let old_protocol_version = PROTOCOL_VERSION - 1;
-
     let new_protocol_version = old_protocol_version + 1;
 
     // Prepare TestEnv with a contract at the old protocol version.
@@ -3288,14 +3283,10 @@ fn test_limit_contract_functions_number_upgrade() {
     };
 
     assert!(matches!(old_outcome.status, FinalExecutionStatus::SuccessValue(_)));
-    if cfg!(feature = "protocol_feature_limit_contract_functions_number") {
-        assert!(matches!(
-            new_outcome.status,
-            FinalExecutionStatus::Failure(TxExecutionError::ActionError(_))
-        ));
-    } else {
-        assert!(matches!(new_outcome.status, FinalExecutionStatus::SuccessValue(_)));
-    }
+    assert!(matches!(
+        new_outcome.status,
+        FinalExecutionStatus::Failure(TxExecutionError::ActionError(_))
+    ));
 }
 
 mod access_key_nonce_range_tests {

nearcore/Cargo.toml

@@ -72,9 +72,8 @@ protocol_feature_alt_bn128 = ["near-primitives/protocol_feature_alt_bn128", "nod
 protocol_feature_block_header_v3 = ["near-epoch-manager/protocol_feature_block_header_v3", "near-store/protocol_feature_block_header_v3", "near-primitives/protocol_feature_block_header_v3", "near-chain/protocol_feature_block_header_v3", "near-client/protocol_feature_block_header_v3"]
 protocol_feature_chunk_only_producers = ["protocol_feature_block_header_v3", "near-chain-configs/protocol_feature_chunk_only_producers", "near-epoch-manager/protocol_feature_chunk_only_producers", "near-chain/protocol_feature_chunk_only_producers", "near-client/protocol_feature_chunk_only_producers", "node-runtime/protocol_feature_chunk_only_producers", "near-rosetta-rpc/protocol_feature_chunk_only_producers"]
 protocol_feature_routing_exchange_algorithm = ["near-primitives/protocol_feature_routing_exchange_algorithm", "near-chain/protocol_feature_routing_exchange_algorithm", "near-network/protocol_feature_routing_exchange_algorithm", "near-client/protocol_feature_routing_exchange_algorithm", "near-jsonrpc/protocol_feature_routing_exchange_algorithm"]
-protocol_feature_limit_contract_functions_number = ["near-primitives/protocol_feature_limit_contract_functions_number", "near-vm-runner/protocol_feature_limit_contract_functions_number"]
 protocol_feature_lower_regular_op_cost2 = ["near-primitives/protocol_feature_lower_regular_op_cost2"]
-nightly_protocol_features = ["nightly_protocol", "near-primitives/nightly_protocol_features", "near-client/nightly_protocol_features", "near-epoch-manager/nightly_protocol_features", "near-store/nightly_protocol_features", "protocol_feature_block_header_v3", "protocol_feature_alt_bn128", "protocol_feature_chunk_only_producers", "protocol_feature_routing_exchange_algorithm", "protocol_feature_limit_contract_functions_number", "protocol_feature_lower_regular_op_cost2"]
+nightly_protocol_features = ["nightly_protocol", "near-primitives/nightly_protocol_features", "near-client/nightly_protocol_features", "near-epoch-manager/nightly_protocol_features", "near-store/nightly_protocol_features", "protocol_feature_block_header_v3", "protocol_feature_alt_bn128", "protocol_feature_chunk_only_producers", "protocol_feature_routing_exchange_algorithm", "protocol_feature_lower_regular_op_cost2"]
 nightly_protocol = ["near-primitives/nightly_protocol", "near-jsonrpc/nightly_protocol"]
 
 # Force usage of a specific wasm vm irrespective of protocol version.

runtime/near-vm-errors/Cargo.toml

@@ -24,7 +24,6 @@ near-rpc-error-macro = { path = "../../tools/rpctypegen/macro", version = "0.1.0
 [features]
 dump_errors_schema = ["near-rpc-error-macro/dump_errors_schema"]
 protocol_feature_alt_bn128 = []
-protocol_feature_limit_contract_functions_number = []
 
 [package.metadata.workspaces]
 independent = true

runtime/near-vm-errors/src/lib.rs

@@ -144,7 +144,6 @@ pub enum PrepareError {
     /// Error creating memory.
     Memory,
     /// Contract contains too many functions.
-    #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
     TooManyFunctions,
 }
 
@@ -294,7 +293,6 @@ impl fmt::Display for PrepareError {
             StackHeightInstrumentation => write!(f, "Stack instrumentation failed."),
             Instantiate => write!(f, "Error happened during instantiation."),
             Memory => write!(f, "Error creating memory."),
-            #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
             TooManyFunctions => write!(f, "Too many functions in contract."),
         }
     }

runtime/near-vm-runner/Cargo.toml

@@ -73,7 +73,6 @@ protocol_feature_alt_bn128 = [
     "near-primitives/protocol_feature_alt_bn128",
     "near-vm-errors/protocol_feature_alt_bn128"
 ]
-protocol_feature_limit_contract_functions_number = ["near-primitives/protocol_feature_limit_contract_functions_number", "near-vm-errors/protocol_feature_limit_contract_functions_number"]
 nightly_protocol = ["near-primitives/nightly_protocol"]
 
 [package.metadata.cargo-udeps.ignore]

runtime/near-vm-runner/src/prepare.rs

@@ -156,7 +156,6 @@ impl<'a> ContractModule<'a> {
     }
 
     fn validate_functions_number(self) -> Result<Self, PrepareError> {
-        #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
         if let Some(max_functions_number) =
             self.config.limit_config.max_functions_number_per_contract
         {

runtime/near-vm-runner/src/tests/compile_errors.rs

@@ -1,10 +1,6 @@
-#[cfg(feature = "protocol_feature_limit_contract_functions_number")]
 use near_primitives::version::ProtocolFeature;
-#[cfg(not(feature = "protocol_feature_limit_contract_functions_number"))]
-use near_primitives::version::PROTOCOL_VERSION;
 use near_vm_errors::{CompilationError, FunctionCallError, PrepareError, VMError};
 
-#[cfg(feature = "protocol_feature_limit_contract_functions_number")]
 use assert_matches::assert_matches;
 
 use crate::tests::{
@@ -156,12 +152,8 @@ fn test_evil_function_index() {
 #[test]
 fn test_limit_contract_functions_number() {
     with_vm_variants(|vm_kind: VMKind| {
-        #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
         let old_protocol_version =
             ProtocolFeature::LimitContractFunctionsNumber.protocol_version() - 1;
-        #[cfg(not(feature = "protocol_feature_limit_contract_functions_number"))]
-        let old_protocol_version = PROTOCOL_VERSION - 1;
-
         let new_protocol_version = old_protocol_version + 1;
 
         let functions_number_limit: u32 = 10_000;
@@ -192,9 +184,6 @@ fn test_limit_contract_functions_number() {
             new_protocol_version,
             vm_kind,
         );
-        #[cfg(not(feature = "protocol_feature_limit_contract_functions_number"))]
-        assert_eq!(err, None);
-        #[cfg(feature = "protocol_feature_limit_contract_functions_number")]
         assert_matches!(
             err,
             Some(VMError::FunctionCallError(FunctionCallError::CompilationError(