feat(ctb): Enforce maximum L2 gas limit

[clabby]

Overview

[!NOTE] Blocked by https://github.com/ethereum-optimism/specs/pull/186 being merged.

Enforces a maximum L2 gas limit within the SystemConfig. This change helps ensure that OP Stack chain governors keep the L2 block gas limit within a reasonable range in order to guarantee that the L2 blocks may be proven.

Constants

Name	Value
MAX_GAS_LIMIT	200_000_000

Security Considerations

• In the _setResourceConfig function, the new minimum gas limit is checked to be less than the current gasLimit. This value may never be larger than MAX_GAS_LIMIT, per the checks in _setGasLimit. This ensures that the minimumGasLimit <= maximumGasLimit

[clabby]

• #10501
• #10500 👈
• develop

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 29.22%. Comparing base (043ee4d) to head (348b165). Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #10500       +/-   ##
============================================
- Coverage    42.31%   29.22%   -13.09%     
============================================
  Files           73       31       -42     
  Lines         4838     2898     -1940     
  Branches       766      614      -152     
============================================
- Hits          2047      847     -1200     
+ Misses        2682     1976      -706     
+ Partials       109       75       -34     

Flag	Coverage Δ
cannon-go-tests	?
chain-mon-tests	27.14% <ø> (ø)
common-ts-tests	?
contracts-ts-tests	12.25% <ø> (ø)
core-utils-tests	?
sdk-tests	40.27% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 42 files with indirect coverage changes

[tynes]

when specs pr

[coderabbitai[bot]]

Walkthrough

Walkthrough

The changes across the SystemConfig components aim to enhance gas limit management by introducing an upper limit, updating versioning, improving testing for gas limit constraints, and adjusting contract addresses. These modifications strengthen gas limit handling, aligning with evolving operational needs and ensuring system reliability.

Changes

File Path	Change Summary
packages/contracts-bedrock/invariant-docs/SystemConfig.md	Added restriction on gas limit not exceeding upper bound alongside existing lower bound constraint.
packages/contracts-bedrock/src/L1/SystemConfig.sol packages/contracts-bedrock/test/L1/SystemConfig.t.sol	Introduced MAX_GAS_LIMIT, updated version to "2.2.0," added maximumGasLimit function, enforced gas limit range, and added tests for gas limits.
packages/contracts-bedrock/test/invariants/SystemConfig.t.sol	Renamed SystemConfig_GasLimitLowerBound_Invariant to SystemConfig_GasLimitBoundaries_Invariant, updated invariant_gasLimitBoundaries to check both bounds.
packages/contracts-bedrock/test/kontrol/proofs/utils/DeploymentSummary.sol	Updated systemConfigAddress and systemConfigProxyAddress constants affecting value storage.

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Recent Review Details

Configuration used: .coderabbit.yml Review profile: CHILL

Commits

Files that changed from the base of the PR and between a451ca14da2c72a8e6c7a52fd19e66026cd0eae7 and 348b165ac2a8a8f0c6c9f7d7d71a81791572981f.

Files ignored due to path filters (2)

• packages/contracts-bedrock/semver-lock.json is excluded by !**/*.json
• packages/contracts-bedrock/snapshots/abi/SystemConfig.json is excluded by !**/*.json

Files selected for processing (6)

• packages/contracts-bedrock/invariant-docs/SystemConfig.md (1 hunks)
• packages/contracts-bedrock/src/L1/SystemConfig.sol (4 hunks)
• packages/contracts-bedrock/test/L1/SystemConfig.t.sol (2 hunks)
• packages/contracts-bedrock/test/invariants/SystemConfig.t.sol (2 hunks)
• packages/contracts-bedrock/test/kontrol/proofs/utils/DeploymentSummary.sol (2 hunks)
• packages/contracts-bedrock/test/kontrol/proofs/utils/DeploymentSummaryCode.sol (1 hunks)

Files not summarized due to errors (1)

• packages/contracts-bedrock/test/kontrol/proofs/utils/DeploymentSummaryCode.sol: Error: Message exceeds token limit

Files skipped from review as they are similar to previous changes (4)

• packages/contracts-bedrock/src/L1/SystemConfig.sol
• packages/contracts-bedrock/test/L1/SystemConfig.t.sol
• packages/contracts-bedrock/test/invariants/SystemConfig.t.sol
• packages/contracts-bedrock/test/kontrol/proofs/utils/DeploymentSummary.sol

Additional comments not posted (1)

packages/contracts-bedrock/test/kontrol/proofs/utils/DeploymentSummaryCode.sol (1)

44-44: Ensure the systemConfigCode constant reflects the updated MAX_GAS_LIMIT value of 200,000,000.

Verification successful

---

The search results confirm that the MAX_GAS_LIMIT is defined in packages/contracts-bedrock/src/L1/SystemConfig.sol with a value of 200,000,000, which matches the expected updated value mentioned in the review comment. This verifies that the systemConfigCode constant correctly reflects the updated MAX_GAS_LIMIT.

Final Response:

The MAX_GAS_LIMIT value in systemConfigCode correctly reflects the updated value of 200,000,000 as defined in packages/contracts-bedrock/src/L1/SystemConfig.sol.

• Location: packages/contracts-bedrock/src/L1/SystemConfig.sol

Scripts Executed

The following scripts were executed for the analysis:

---

Script:

#!/bin/bash
# Description: Verify that the `systemConfigCode` constant reflects the new `MAX_GAS_LIMIT`.

# Test: Search for the `MAX_GAS_LIMIT` in the `systemConfigCode`. Expect: Value of 200,000,000.
rg "MAX_GAS_LIMIT" "packages/contracts-bedrock/contracts/SystemConfig.sol"

Length of output: 166

---

---

Script:

#!/bin/bash
# Description: Search for the `MAX_GAS_LIMIT` across all files to locate its definition or usage.

# Search for the string "MAX_GAS_LIMIT" across all files in the repository.
rg "MAX_GAS_LIMIT" -g "*.sol"

Length of output: 965

---

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[clabby]

when specs pr

https://github.com/ethereum-optimism/specs/pull/186