Kaj SchittecatandClaude Opus 5
6868911f59
Some ThinkNode M9 cards shipped with a dormant Windows worm (Elecrow security advisory, September 2026). An infected card seen since carries autorun.inf in the root, launching xlfqf.pif on open, explore and autoplay with random-junk comment lines in between: the Sality autorun pattern. - SD Scan store app (deploy/apps/sdscan/1.0, requires "sd", not seeded): walks the card a small page per tick, lists what it finds and why, and removes it after a confirmation screen with Cancel first. It says on every screen that it only removes files it recognises and that formatting the card is the safe fix. On older firmware it still finds threats by name but cannot remove them. - Firmware: wada.sd.check(path) and wada.sd.remove(path), plus paging for wada.sd.list(path, start, max) and caps().sd_clean. What counts as a threat lives in SdThreat.h: autorun.inf, Windows program, script and shortcut extensions, or a real MZ+PE header under any name. remove() classifies again in firmware and refuses anything else, so no app can use it to delete tiles, backups or chat history. It clears read-only, hidden and system first, because FAT refuses to delete a read-only file. - A warning when a card with Windows malware in its top folder is mounted, at boot or on insert, offering SD Scan (or the Store). - Tests: test/test_sd_threat.cpp, and SD Scan harness scenarios including the real infected card's root. Removal checked on a T-Deck. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
wadamesh.com infrastructure
Distribution stack for wadamesh: a VPS nginx origin behind Cloudflare.
tiles.wadamesh.com →CF (HTTP, edge-cached) → nginx → OpenStreetMap / OpenTopoMap
firmware.wadamesh.com →CF (cache bins) → nginx → /srv/wadamesh/firmware
flasher.wadamesh.com →CF (HTTPS) → 301 → wadamesh.com
wadamesh.com →CF (HTTPS) → nginx → /srv/wadamesh/site
Map tile styles. The default /{z}/{x}/{y}.jpg route serves OpenStreetMap
(the firmware default). An opt-in OpenTopoMap topographic style is served from
/opentopo/{z}/{x}/{y}.jpg (explicit OSM alias at /osm/...); the device requests
it only when the user enables Map → Options → Topographic map. Legal: OpenTopoMap
map tiles are © OpenTopoMap (CC-BY-SA) over © OpenStreetMap contributors
(ODbL) + SRTM — the touch UI shows that attribution when topo is active, and the
14-day disk cache keeps each tile hitting OpenTopoMap at most once per fortnight
(their tile-usage policy asks for a contactable UA + caching, both of which the
transcode service provides). Deploying the topo routes = update
tiles.wadamesh.com.conf + tile-transcode.py, then
systemctl restart wadamesh-tile-transcode && nginx -t && systemctl reload nginx
and purge the Cloudflare cache for tiles.wadamesh.com/opentopo/*.
The firmware fetches tiles + the update-check over plain HTTP (on-device HTTPS isn't viable — mbedTLS needs ~30 KB heap, only ~5 KB is free post-Wi-Fi), so the tile + firmware hosts must stay reachable over HTTP. Cloudflare provides the edge cache, HTTPS for the flasher, and hides the origin IP (so no IP lives in this repo or the firmware).
1. VPS (origin)
sudo apt install nginx
sudo mkdir -p /srv/wadamesh/firmware/releases/TOUCH /var/cache/nginx/wadamesh-tiles
sudo cp deploy/nginx/tiles.wadamesh.com.conf /etc/nginx/sites-available/
sudo cp deploy/nginx/firmware.wadamesh.com.conf /etc/nginx/sites-available/
sudo ln -s /etc/nginx/sites-available/tiles.wadamesh.com.conf /etc/nginx/sites-enabled/
sudo ln -s /etc/nginx/sites-available/firmware.wadamesh.com.conf /etc/nginx/sites-enabled/
sudo nginx -t && sudo systemctl reload nginx
2. Cloudflare
- DNS:
A/AAAArecords fortiles,firmware,flasher,@→ the VPS IP, all Proxied (orange cloud). - SSL/TLS: mode Flexible (CF↔origin HTTP) is enough since the origin is
HTTP-only. Do NOT enable "Always Use HTTPS" on
tiles.orfirmware.— the firmware needs plain HTTP there. - Cache Rules:
tiles.wadamesh.com/*→ Eligible for cache, Edge TTL ~14d.firmware.wadamesh.com/releases/*/*.bin→ cache, Edge TTL ~1d.firmware.wadamesh.com/releases/TOUCH(the listing) → short TTL (~60s) or Bypass, so new releases appear promptly.
3. Publishing a release
From a wadamesh checkout (builds both boards, refreshes the listing, rsyncs up):
WADAMESH_VPS=user@your-vps scripts/release.sh beta_2
The on-device check GETs http://firmware.wadamesh.com/releases/TOUCH, finds the
highest beta_<N>, and (once OTA-over-Wi-Fi is re-enabled) pulls
…/releases/TOUCH/beta_<N>/<board>.bin.
Done
- Web flasher ✅ — the guided install page at
wadamesh.com, served fromdeploy/site/and published byscripts/deploy-site.sh(esp-web-tools / Web Serial, per-board install buttons + .bin downloads, manifests generated per release byscripts/build/gen-flasher-meta.pyinto the/latest/and/latest-beta/feeds thatrelease.shrefreshes each publish). flasher.wadamesh.com301-redirects to the apex (seedeploy/nginx/flasher.wadamesh.com.conf) — it is an alias, not its own page.deploy/flasher/is the original standalone flasher page. No deploy script publishes it —deploy-site.shshipsdeploy/site/only — so it is effectively an offline/local copy kept in parity by hand. Retire it or wire it into a deploy target; until then, treatdeploy/site/index.htmlas the only install page users can reach.
TODO before public launch
- Re-enable OTA-over-Wi-Fi in the firmware (currently it version-checks then defers to manual flashing).
- Flip
wadameshrepo public = launch. - Decide tile-proxy sharing: dedicated
tiles.wadamesh.com(this config) vs reusing the meshcomod proxy.
Never commit the VPS IP, SSH keys, or
WADAMESH_VPS. Cloudflare fronts the origin; the deploy target is supplied via the environment at publish time.