Introducing IP Graph Support (migrate from master to main branch) #12
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WalkthroughThis update introduces significant enhancements to the Ethereum virtual machine (EVM) framework by adding functionality for managing IP relationships through a new Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant EVM
participant PrecompiledContract
participant IPGraph
User->>EVM: Call contract with input
EVM->>PrecompiledContract: Execute Run(evm, input)
PrecompiledContract->>IPGraph: Interpret input and perform operation
IPGraph-->>PrecompiledContract: Return result
PrecompiledContract-->>EVM: Return execution result
EVM-->>User: Return final result
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Actionable comments posted: 5
Outside diff range, codebase verification and nitpick comments (1)
core/vm/contracts_fuzz_test.go (1)
43-47: Enhance theBlockContextTransfer function.The
Transferfunction withinBlockContextis currently a no-op. Consider implementing logic if state transfers are relevant to your tests.
Review details
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Review profile: CHILL
Files selected for processing (6)
- core/genesis.go (1 hunks)
- core/vm/contracts.go (28 hunks)
- core/vm/contracts_fuzz_test.go (2 hunks)
- core/vm/contracts_test.go (5 hunks)
- core/vm/evm.go (5 hunks)
- core/vm/ipgraph.go (1 hunks)
Additional comments not posted (17)
core/vm/ipgraph.go (11)
65-66: Verify handling of unknown selectors.The function returns an error for unknown selectors. Ensure that this behavior aligns with the expected contract specifications.
71-73: Verify input validation foraddParentIp.Ensure that the input length checks adequately prevent out-of-bounds errors, especially when processing multiple parent IPs.
113-115: Verify parent IP comparison logic.Ensure that the comparison logic accurately identifies the presence of a parent IP in the stored state.
142-143: Verify output format forgetParentIps.Ensure that the output format aligns with the expected structure for parent IPs, including length and padding.
157-158: Verify count retrieval forgetParentIpsCount.Ensure that the count retrieval logic correctly reflects the number of parent IPs stored in the state.
178-179: Verify ancestor traversal logic ingetAncestorIps.Ensure that the stack-based traversal correctly identifies all ancestor IPs without missing any nodes.
192-193: Verify ancestor count calculation ingetAncestorIpsCount.Ensure that the calculation of ancestor IPs count is accurate and accounts for all ancestors in the graph.
203-205: Verify ancestor checking logic inhasAncestorIp.Ensure that the logic accurately determines the presence of an ancestor IP in the graph.
234-235: Verify ancestor finding logic infindAncestors.Ensure that the traversal and map building correctly identify all ancestors without missing any nodes.
247-248: Verify slot calculation and state update insetRoyalty.Ensure that the slot calculation is correct and that the state update accurately reflects the intended royalty assignment.
268-269: Verify royalty accumulation logic ingetRoyalty.Ensure that the traversal and accumulation of royalties accurately reflect the total royalty owed.
core/genesis.go (1)
596-596: Addition ofipGraphentry in DeveloperGenesisBlock.The addition of a new entry for the
ipGraphwith a balance of 1 is noted. Ensure that this entry is consistent with the intended use ofipGraphin the genesis block and aligns with the overall architecture.core/vm/evm.go (2)
300-300: Passing EVM context to precompiled contracts.The addition of the
evmparameter inRunPrecompiledContractcalls ensures that precompiled contracts have access to the EVM context. This change is beneficial for more complex interactions and state management.Also applies to: 351-351, 405-405
230-231: Addition of logging in precompiled contract execution.The logging of precompiled contract execution results, including return values, gas used, and errors, enhances observability. Ensure that the logging level is appropriate and does not expose sensitive information.
core/vm/contracts.go (3)
113-113: Addition ofipGraphto PrecompiledContractsCancun.The
ipGraphprecompiled contract is added to thePrecompiledContractsCancunmap. This addition should be consistent with the intended functionality ofipGraphand its integration within the EVM.
Line range hint
198-208: Logging in RunPrecompiledContract function.The logging of input, output, and errors in the
RunPrecompiledContractfunction aids in debugging and monitoring. Ensure that the logging level is appropriate and does not expose sensitive information.Verification successful
Ensure Logging Practices Do Not Expose Sensitive Information
The
RunPrecompiledContractfunction logs input, output, and errors usinglog.Info. Verify that no sensitive information is included in these logs to maintain security and privacy.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify logging practices in RunPrecompiledContract. # Test: Check for logging levels and sensitive data exposure. rg --type go 'log\.(Info|Debug|Warn|Error)' -A 3Length of output: 319785
47-47: Update to PrecompiledContract interface.The
Runmethod now includes theevmparameter, allowing precompiled contracts to access the EVM context. Ensure that all implementations of this interface are updated accordingly.Verification successful
Verification Successful: PrecompiledContract Interface Update Applied
The
Runmethod implementations have been updated to include theevm *EVMparameter, aligning with the changes made to thePrecompiledContractinterface. No further action is required.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that all implementations of PrecompiledContract are updated. # Test: Check for implementations of the Run method with the new signature. ast-grep --lang go --pattern 'func ($_).Run(evm *EVM, $_) ($_$_, error) { $$$ }'Length of output: 82
Script:
#!/bin/bash # Description: Search for all Run method implementations to verify the inclusion of the evm parameter. # Find all Go files and search for Run method implementations. fd --type f --extension go --exec rg 'func (\w+)\.Run\(' -A 2Length of output: 63
Script:
#!/bin/bash # Description: List all Go files and search for Run method implementations with a simplified pattern. # List all Go files to ensure they are found. fd --type f --extension go # Search for Run method implementations with a simplified pattern. fd --type f --extension go --exec rg 'Run\(' -A 3Length of output: 85235
| statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil) | ||
| evm := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{}) |
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Ensure proper error handling for state initialization in testPrecompiled.
The state.New function call ignores the error returned. Consider handling this error to prevent potential issues during state initialization.
- statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
+ statedb, err := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
+ if err != nil {
+ t.Fatalf("Failed to initialize state: %v", err)
+ }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil) | |
| evm := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{}) | |
| statedb, err := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil) | |
| if err != nil { | |
| t.Fatalf("Failed to initialize state: %v", err) | |
| } | |
| evm := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{}) |
The PR is for cherry-pick the PR #1 from master to main branch.
The original PR description as below:
Key Objectives:
Stateful Precompiled Contracts: This PR refactors and enhances Geth to support stateful precompiled contracts, transitioning from the current support of only stateless precompiled contracts. This foundational change will enable more complex operations and state management within precompiled contracts.
IP Graph Precompiled Contract: Development of a specialized precompiled contract designed to facilitate various graph operations for IP management. This contract introduces robust functionality tailored to handle the intricacies of IP relationships and royalty management.
Features of the IP Graph Precompiled Contract:
Connect IP Assets:
Derivative Relationships:
Graph Traversal:
Royalty Association:
Graph Aggregation:
Detailed Description:
This PR introduces significant enhancements to Geth by implementing stateful precompiled contracts, laying the groundwork for more complex and state-aware smart contract functionality. The core of this PR is the development of the IP Graph Precompiled Contract, a dedicated contract designed to handle various graph-based operations crucial for effective IP management.
The IP Graph Precompiled Contract provides a comprehensive set of features aimed at enabling the integration, management, and exploration of IP assets within a graph structure. By supporting derivative relationships and royalty associations, this contract ensures a seamless and transparent way to handle IP derivations and royalty distributions. Additionally, the graph traversal and aggregation functionalities empower users to efficiently navigate and aggregate data within the IP Graph.
These enhancements position VM to better support applications requiring advanced IP management and royalty distribution capabilities, making it a robust platform for handling complex IP ecosystems.
Summary by CodeRabbit
New Features
ipGraphstructure for managing IP relationships and royalties within the Ethereum virtual machine context.Bug Fixes
Tests