ScottW514 83686fc712 forgectrl.tls-records: a window another client connected in is measured again
The test judges each connection by the kernel's TLS counters and the
crypto engine's interrupt, and both are the machine's, not the
connection's. On image 20260928175056's campaign the test before it
restarted forgectrl, the operator's panel (six HTTPS connections from
the bench PC) reconnected in the same second as aes-1.3#1, and the
kernel counted 7 sessions each way where the test wanted exactly 1; the
connection itself chose AES-128-GCM, carried the page byte for byte, and
counted no decrypt error. _fetch now also reads the machine's accepted
TCP connections (PassiveOpens, shared by both families); a case whose
window saw any connection but its own is measured again, up to 30 times
after a pause drawn from 0.1 to 0.9 s (so no steady poller, such as a
page polling this suite once a second, stays in step with it), and
fails if every window was contested. The judgments are unchanged: exactly one session each way for a cipher the kernel seals,
none for CBC, the engine's interrupt counting the AES records and not
the ChaCha20 ones.

Proof: pyflakes clean. On the bench reference, image 20260928175056,
with an openssl client connecting to :443 every 0.25 s for the first
6 s of the run and the drill polling this suite once a second: the
image's test fails (desktop-1.2 counted 2 sessions each way), the fixed
test passes with contested windows measured again (at most 4 attempts a
case), and passes again without the extra clients (at most 4).

Acceptance: the change is forgectrl.tls-records itself; tlsrec.py holds
no other test, so no other fingerprint moves.
2026-09-28 14:23:04 -04:00
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2026-09-08 16:21:37 -04:00
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OpenGlow / ForgeFIRM firmware for Glowforge

BETA

ForgeFIRM is in beta. Every release below 0.1.0 is a beta release. Expect problems, and expect frequent updates. Upgrade whenever a newer release is available, and report what you find on the community forum.

Open firmware for Glowforge brand CNC lasers. ForgeFIRM replaces the cloud-dependent factory software on the stock control board, with no hardware modification, and gives the machine a local controller, a local web control panel, and a standard Grbl interface. The factory cloud experience stays available as an option.

This repository is the base of the build and of the release: the meta-forgefirm Yocto layer, the kas configuration, the image recipes, the install and release scripts, the acceptance tool (forgetest/), the bench tools (scripts/bench/), the bench actuator firmware (fixture/), and the release artifacts (releases/).

Start here

https://docs.forgefirm.org/ is the documentation, and the source of truth for every fact about the machine and the firmware.

Read this first Safety
Put it on a machine Installation
Use it Usage, LightBurn
How the machine works Technical
How ForgeFIRM works with it ForgeFIRM internals
Build, test, release Developers
Downloads Releases
Questions Community forum

Build

kas build kas/forgefirm-glowforge.yml

Build covers the host setup, the two images, the source variant and the debug kernel. Release flow covers the pins, the push order and the signing pipeline.

Test

cd forgetest && python3 -m unittest discover -s tests -v

The acceptance catalog that gates a release, and the bench tools, are on Acceptance and The bench.

Contributing

AGENTS.md carries the rules for this repository and for the project: safety ordering, proof before done, the push order, and the writing rules. They apply to human contributors too, and Contribute is the same set on the site.

What this costs

Nothing. ForgeFIRM is free in both senses, under MIT and GPL licenses. There is no paid tier, no license key, no subscription and no Pro edition. If someone offers to sell it to you, the licenses allow it, but what you take home is their build rather than this one: get it from the source.

Safety

These machines contain a CO2 laser: it burns, blinds, and starts fires. Never defeat the lid switches or the interlock. Never leave a running job unattended. Keep a fire extinguisher within reach. Read Safety before you cut your first job, and Regulatory and legal before you install.

This is experimental software. Use of it could seriously maim or kill you or others, and it may void your warranty. Use it at your own risk.

Glowforge is a trademark of Glowforge, Inc. This project is not affiliated with, authorized by, or endorsed by Glowforge, Inc.

S
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OpenGlow/ForgeFIRM Firmware for Glowforge
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