Ben Meadors f57ee0bd71 fix(mesh): restore the implicit ACK for our own overheard PKI DMs (#11502)
* fix(mesh): restore the implicit ACK for our own overheard PKI DMs

A DM we originate is PKI-encrypted to the recipient, so when we overhear it
being rebroadcast we cannot decrypt it. perhapsHandleReceived() classifies it
DECODE_OPAQUE and returns before shouldFilterReceived() runs, which is where
the implicit ACK for our own transmission is generated. The client therefore
never receives the ROUTING_APP ack it renders as "Delivered to mesh" for a DM,
and the message sits in "sending" until it either succeeds outright or times
out as max retransmissions.

The ACK only needs the packet header (from/id), not the decoded payload, so
split it out of shouldFilterReceived() into
perhapsGenerateImplicitAckForOwnOverheard() and also call it from the opaque
short-circuit for packets that are from us. Behavior on the decodable path is
unchanged.

Broadcasts on a PSK channel decode normally and always reached the generator,
which is why channel messages were unaffected and only DMs showed the symptom.

* test: rename implicit-ack tests to avoid a trufflehog false positive

The camelCase identifiers tripped trunk's trufflehog/Lob secret detector.

* test: shorten one test name past trunk's Lob secret-detector pattern

trufflehog's Lob rule matches test_ followed by exactly 35 word characters,
which both new test names happened to hit. Unrelated to the fix.
2026-08-14 12:15:31 -05:00
2021-10-09 17:15:12 +11:00
2024-09-24 15:24:08 -05:00
2026-08-11 14:56:11 +02:00
2026-07-01 19:01:27 -05:00
2026-01-29 10:06:58 -06:00
2024-11-28 06:26:51 -06:00
2024-09-04 15:33:28 -07:00
2026-07-28 11:09:40 +00:00
2026-01-29 10:06:58 -06:00
2026-01-29 10:06:58 -06:00
2026-07-01 19:01:27 -05:00
2025-01-13 12:24:05 +08:00
2026-01-29 10:06:58 -06:00

Meshtastic Logo

Meshtastic Firmware

GitHub release downloads CI CLA assistant Fiscal Contributors Vercel

meshtastic%2Ffirmware | Trendshift

Overview

This repository contains the official device firmware for Meshtastic, an open-source LoRa mesh networking project designed for long-range, low-power communication without relying on internet or cellular infrastructure. The firmware supports various hardware platforms, including ESP32, nRF52, RP2040/RP2350, and Linux-based devices.

Meshtastic enables text messaging, location sharing, and telemetry over a decentralized mesh network, making it ideal for outdoor adventures, emergency preparedness, and remote operations.

Get Started

Join our community and help improve Meshtastic! 🚀

Stats

Alt

S
Description
No description provided
Readme GPL-3.0
72 MiB
0 Stars 1 Watchers 0 Forks
2026-09-01 21:05:50 +08:00
Languages
C++ 72.5%
C 23.7%
Python 2%
Shell 1.2%
Batchfile 0.2%
Other 0.2%