AFLplusplus/LibAFL

Broker2Broker: Introduce Main Broker

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#98 opened on May 7, 2021

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enhancementhelp wanted

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Description

When using Broker2Broker, there should be a Main Broker to which all other brokers connect.

This Main Broker should:

  • display stats for the entire cluster, including total number of clients, executions, exec/secs, and objectives.
  • for OnDiskCorpus, it should collect all the TestCases and objective outputs from all connected brokers.

This will make managing a multi-machine fuzzing campaign much easier.

Ideally, it should be possible to run a Main Broker without any clients of its own. It should also be possible to run Main Broker on a PC, while child-brokers and clients run on e.g. phones.

Contributor guide

Research direction
Study Broker2Broker architecture in LibAFL. Identify how brokers communicate and where stats are collected. Design a Main Broker that listens for connections from child brokers, aggregates client counts, executions, exec/sec, and objectives. Implement OnDiskCorpus collection by receiving TestCase and objective outputs from connected brokers. Ensure Main Broker can run without own clients and supports cross platform operation.
Tech stack
rust
Domain
backenddistributed systems
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40