Vajra

Vajra can add a section to your ELF executable. A section that indicates a parser, address and parse_len injected in a binary format. It is planned that this project shall be used in conjunction with the larger PaPf project.

Installation

Clone this repo

`git clone git@github.com:prashantbarca/vajra.git`

cd vajra
Build all your dependencies with

bundle

Usage

Create a .vj which has the following lines (in any order).

parser "parser_val"
address "address_val"
parse_len integer

You can run the executable as bin/vajra test.vj executable. test.vj is the file with the configuration of the parser. executable is the ELF file we want to patch with a section.

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

TODO

Supporting more than one parser
Write RSpec tests

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/prashantbarca/vajra. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Vajra project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.

prashantbarca / vajra