protod

Sometimes it is necessary to recover .proto files from binaries or memory dumps.

protod does exactly this - it finds protobuf descriptors in any binary files and writes them back as .proto text files.

Supports:

• proto2 and proto3
• messages, enums, services
• Extraction from uncompressed file descriptors (used in C/C++, maybe others)

Not supported yet:

• Field or file options
• Oneof fields
• Extensions
• Compressed file descriptors (used in Go)
• Recovery without file descriptors

Installation

Go 1.12+ is required.

go get -u github.com/dennwc/protod
go install github.com/dennwc/protod/cmd/protod 

Usage

protod --out=./out some_binary

The tool will emit recovered .proto files to ./out directory.

License

MIT (based on protod Python script by Sysdream)