Gallopsled/pwntools

MIPS Corefile support

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#2,254 opened on Aug 4, 2023

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 (1 comment) (0 reactions) (0 assignees)Python (11,127 stars) (1,684 forks)batch import
featuregood first issue

Description

Currently pwntools does not support parsing coredumps that are from MIPS binaries. Would be nice if it did.

FYI: The current list of architectures supported: pwntools/pwnlib/elf/corefile.py:102

prstatus_types = {
    'i386': elf_prstatus_i386,
    'amd64': elf_prstatus_amd64,
    'arm': elf_prstatus_arm,
    'aarch64': elf_prstatus_aarch64
}

Contributor guide

Tech stack
python
Domain
backendsecuritytooling
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.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Knowledge of MIPS architectureUnderstanding of ELF core file format
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
First, examine the existing prstatus types dictionary in pwntools/pwnlib/elf/corefile.py around line 102 to understand the structure definitions for supported architectures (i386, amd64, arm, aarch64). Then, research the MIPS ELF core file format to define the appropriate prstatus structure for MIPS (both 32 bit and 64 bit variants if applicable). Implement the new entry in the dictionary and add corresponding constants if needed. Finally, test the implementation using a MIPS coredump from a known binary to ensure parsing works correctly. The comment on the issue may contain additional context.