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# [out-of-tree](https://out-of-tree.io)

*out-of-tree* is the kernel {module, exploit} development tool.

*out-of-tree* was created to reduce the complexity of the environment for developing, testing and debugging Linux kernel exploits and out-of-tree kernel modules (hence the name "out-of-tree").

## Installation

### GNU/Linux (with [Nix](https://nixos.org/nix/))

    sudo apt install podman || sudo dnf install podman

    curl -L https://nixos.org/nix/install | sh
    mkdir -p ~/.config/nix
    echo "experimental-features = nix-command flakes" >> ~/.config/nix/nix.conf

    # stable
    nix profile install nixpkgs#out-of-tree

    # latest
    nix profile install git+https://code.dumpstack.io/tools/out-of-tree

### macOS

Note: case-sensitive FS is required for the ~/.out-of-tree directory.

    $ brew install podman
    $ podman machine stop || true
    $ podman machine rm || true
    $ podman machine init --cpus=4 --memory=4096 -v $HOME:$HOME
    $ podman machine start
    $ brew tap out-of-tree/repo
    $ brew install out-of-tree

Read [documentation](https://out-of-tree.readthedocs.io) for further info.

## Examples

Download all Ubuntu 24.04 kernels:

    $ out-of-tree kernel genall --distro-id=Ubuntu --distro-release=24.04

Run tests based on .out-of-tree.toml definitions:

    $ out-of-tree pew

Test with a specific kernel:

    $ out-of-tree pew --realtime-output  --distro-id=ubuntu --kernel-regex=6.8.0-41-generic

Run debug environment:

    $ out-of-tree debug --distro-id=ubuntu --distro-release=24.04 --kernel-regex=6.8.0-41-generic