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Refs/heads/patch 1 #18

Merged
merged 10 commits into from
Nov 19, 2024
Merged

Refs/heads/patch 1 #18

merged 10 commits into from
Nov 19, 2024

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FortiShield
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@FortiShield FortiShield commented Nov 19, 2024

Addresses issue: #

Changes proposed in this pull request:

  • Change 1
  • Change 2
  • Change 3

Summary by Sourcery

Add BPFFunc enum for BPF function identifiers and refactor BPFHelperIsSupported for better error handling. Enhance test capabilities management and update build configuration for libbpf integration.

New Features:

  • Introduce BPFFunc enum to represent BPF function identifiers, providing a structured way to handle BPF functions.

Enhancements:

  • Refactor BPFHelperIsSupported function to improve error handling and provide more informative error messages.
  • Add resetEffectiveCapabilities and enforceEffectiveCapabilities functions to manage process capabilities in tests.

Build:

  • Update Makefile to include LIBBPF_INCLUDE_UAPI in CGO_CFLAGS_STATIC for better integration with libbpf.

Tests:

  • Enhance TestFuncSupportbyType to include capability management and error checking, improving test coverage for BPF function support.

Summary by CodeRabbit

  • New Features

    • Updated the symbolToOffset function to return a uint32 type for symbol offsets, enhancing data handling.
    • Tightened bounds for valid symbol addresses in the symbolToOffset function, ensuring stricter validation.
  • Bug Fixes

    • Streamlined error handling in the resetEffectiveCapabilities function for improved clarity and efficiency.

FortiShield and others added 9 commits November 19, 2024 20:51
Signed-off-by: fortishield <[email protected]>
Signed-off-by: fortishield <[email protected]>
Signed-off-by: fortishield <[email protected]>
Signed-off-by: fortishield <[email protected]>
Signed-off-by: NxPKG <[email protected]>
Signed-off-by: NxPKG <[email protected]>
Signed-off-by: NxPKG <[email protected]>
Signed-off-by: NxPKG <[email protected]>
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sourcery-ai bot commented Nov 19, 2024

Reviewer's Guide by Sourcery

This pull request implements significant changes to the libbpfgo library, focusing on BPF helper function support and capability management. The changes include adding a new BPFFunc type, improving error handling, and restructuring the codebase to better handle BPF helper function probing with proper capability checks.

Class diagram for BPFFunc and Capability Management

classDiagram
    class BPFFunc {
        +uint32 Value()
        +string String()
    }
    class CapabilityManager {
        +resetEffectiveCapabilities() error
        +enforceEffectiveCapabilities(newCap []string) error
    }
    class BPFHelper {
        +BPFHelperIsSupported(progType BPFProgType, funcId BPFFunc) (bool, error)
    }
    BPFFunc <|-- BPFHelper
    CapabilityManager <|-- BPFHelper
    note for BPFFunc "Enum for BPF functions with methods to get value and string representation"
    note for CapabilityManager "Manages effective capabilities for BPF operations"
    note for BPFHelper "Checks if a BPF helper function is supported for a given program type"
Loading

File-Level Changes

Change Details Files
Added new BPFFunc type and comprehensive helper function mapping
  • Implemented BPFFunc enum type with all available BPF helper functions
  • Added string representation for BPF helper functions
  • Created mapping between uint64 values and BPF helper functions
prog-common.go
Enhanced BPF helper function support testing with capability management
  • Added capability management functions for testing
  • Improved test cases with capability checks
  • Enhanced error handling for BPF helper support checks
  • Added new test scenarios for different capability combinations
helpers_test.go
Refactored uprobe functionality and symbol resolution
  • Moved symbol resolution logic into the main package
  • Improved error handling in symbol resolution
  • Updated map resizing implementation
selftest/uprobe/main.go
Updated build configuration and dependencies
  • Modified CGO flags to include UAPI headers
  • Updated module dependencies
  • Added libcap dependency for capability management
Makefile
go.mod
go.sum

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coderabbitai bot commented Nov 19, 2024

Caution

Review failed

The pull request is closed.

Walkthrough

The pull request introduces changes to two files: helpers_test.go and selftest/uprobe/main.go. In helpers_test.go, the resetEffectiveCapabilities function has been simplified by removing the logic for storing and restoring original capabilities, focusing solely on clearing and setting effective capabilities. In selftest/uprobe/main.go, the symbolToOffset function's return type has been changed from uint64 to uint32, and the bounds for valid symbol addresses have been tightened. Overall, these changes streamline capability management and refine symbol offset handling.

Changes

File Change Summary
helpers_test.go Modified resetEffectiveCapabilities to remove original capabilities storage and restoration logic. Simplified error handling by directly clearing and setting capabilities.
selftest/uprobe/main.go Updated symbolToOffset to change return type from uint64 to uint32 and adjusted bounds checks from >= and <= to > and <.

Possibly related PRs

  • chore(feat): probe bpf helper improve #13: The changes in this PR enhance the BPF helper testing suite by introducing capability management functions, which directly relate to the modifications made in the resetEffectiveCapabilities function in the main PR.
  • Update helpers_test.go #14: This PR also introduces the resetEffectiveCapabilities and enforceEffectiveCapabilities functions, which are directly relevant to the changes made in the main PR regarding the management of effective capabilities in the helpers_test.go file.

🐰 In the burrow where we play,
Capabilities now clear the way.
No more storing, no more fuss,
Just setting straight, we trust!
With offsets tight and bounds anew,
Our tests are swift, our code is true! 🌟

Warning

There were issues while running some tools. Please review the errors and either fix the tool’s configuration or disable the tool if it’s a critical failure.

🔧 golangci-lint

level=error msg="[linters_context] typechecking error: pattern ./...: directory prefix . does not contain modules listed in go.work or their selected dependencies"


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Hey @FortiShield - I've reviewed your changes and they look great!

Here's what I looked at during the review
  • 🟢 General issues: all looks good
  • 🟢 Security: all looks good
  • 🟢 Testing: all looks good
  • 🟢 Complexity: all looks good
  • 🟢 Documentation: all looks good

Sourcery is free for open source - if you like our reviews please consider sharing them ✨
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.

@NxPKG NxPKG merged commit 5a7c121 into khulnasoft-lab:main Nov 19, 2024
18 checks passed
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2 participants