What is the futility binary in scripts/chromeos?

[IzzySoft]

In scripts/chromeos there's a binary called futility, but it's not mentioned in the readme (or elsewhere). Could you please outline what it is and where it comes from, especially where its source code can be investigated? Thanks in advance!

[anasfanani]

This only for ChromeOS, https://github.com/anasfanani/magisk-autoboot/blob/8ff5fe8a05cf3a655f2dcd14a6e6593703468191/scripts/util_functions.sh#L448

Its from this https://github.com/topjohnwu/Magisk/blob/062e498bddbe51b4e5b4395a40a6b8a75565b90e/scripts/util_functions.sh#L447

[IzzySoft]

Thanks! At the linked place I see it is used. Is it itself FOSS (and is there a link to the code), or is it proprietary (and thus no link to its code available)?

[anasfanani]

Thanks! At the linked place I see it is used. Is it itself FOSS (and is there a link to the code), or is it proprietary (and thus no link to its code available)?

I'm not sure about this, here are some references I got.

$ file futility
futility: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, BuildID[md5/uuid]=2a634a4b19ea852faf70891a42a7cb4b, stripped

https://github.com/topjohnwu/Magisk/blob/master/tools/futility

https://chromium.googlesource.com/chromiumos/platform/vboot/+/0e5f54d79158f216edeb42bfe9c5cd6d35dc6e0d/Makefile#625

https://github.com/coreboot/vboot/blob/main/Android.mk#L121

https://www.google.com/search?q=%22futility%2Ffutility.c%22

[IzzySoft]

Thanks! The source seems to be available. It says "Use of this source code is governed by a BSD-style license that can be found in the LICENSE file" – just that LICENSE file cannot be found, strange. Looking around, it seems this one seems to apply, which would make it BSD-3-Clause. (you might wish to place these details somewhere easy to find :wink:)

So I've added your module to my Magisk repo now, thanks!

[anasfanani]

Wow, thankyou for the feedback. I will update my license, please check this my other module also.

https://github.com/anasfanani/Magisk-Tailscaled

[IzzySoft]

I am no lawyer, so I do not know and cannot tell which license takes the lead here. I only know BSD-3-Clause and MIT go well together as they are both rather permissive. As you've kept your code under MIT, I'll keep it listed as MIT here as well. Those interested in using the code directly will have to visit your repo anyway, and then can find out for themselves.

With Tailscaled it's clear as both parts use BSD-3-Clause. Unfortunately, that ZIP is a bit large; I draw a size limit here around 30 MB, as I do with my Android App repo (both are running on limited personal space), which is why I skipped your Tailscaled module (it's almost twice that size).

[anasfanani]

@IzzySoft

Woww... Thankyou for providing me fossa.com, I will learn to use correct license for my project.

Unfortunately, that ZIP is a bit large.

I want separate the arch as discused here, but currently i can't do this because I work on another project.

both are running on limited personal space

Why using a personal space rather than github for placing modules/apks ?

[IzzySoft]

Glad I could help! And I'm always open for suggestions on modules & apps to add here.

And no, I don't like using proprietary resources. Nor do I want to feed my code to MS for their AI stuff – which is why I moved all my code out of here.