[pcustom] Describe struct with struct member about gef

[hugsy]

That's not implemented yet, but it's on the TODO list.

[Grazfather]

I played with this tonight. Shouldn't be too difficult.

We need a way to have structures reference eachother.

1. The name shoudn't have to be Template
2. We should allow more than one per file. Maybe they would be referenced by module? e.g. dt heap.main_arena, allowing something like heap.fast_bins to exist in the same module and obviously allow them to reference each other.
3. Should we allow inter-module? This gets a bit tricky because the importing between would be weird. I hacked this in a test module by editing sys.path which is very bad style

Note that this only works for embedded structures not pointers to structures.

[hugsy]

@Grazfather : I totally missed your comment on this ... I needed this feature on a CTF this weekend, so I was about to get to it. Do you already have a patch ready for that?

[Grazfather]

Mine is super ugly, but I can push it.

EDIT: https://github.com/Grazfather/gef/tree/embed

[hugsy]

I'll have a look but I've also started on my end 😄

[Grazfather]

For sure. It's easy enough to implement, I just wasn't sure a nice way to have the modules find each other (sys.path stuff) and how to make it look.

[hugsy]

For now, I'm using pcustom.struct_path to "manually" load the desired module (with imp): for every .py file in the directory, I am importing all classes from the variable exportables. This approach allows to not touch the Python path, but also to select which class are to be visible.

[hugsy]

This was fixed long ago.