mrambossekandClaude Opus 5
6e269d424b
Mirrors NetworkMonitor: per active network, fetch the AOSP default generate_204 endpoints and check for HTTP 204 No Content. - HTTPS https://www.google.com/generate_204 == 204 -> validated internet - HTTP http://connectivitycheck.gstatic.com/generate_204: 204 -> clean; an unfollowed 3xx or a 200-with-body -> captive portal (Location captured) - both fail -> no_internet Per-network verdicts (bound via Network.openConnection), redirects not followed (the 3xx IS the evidence). Findings: captive_portal (medium) and no_internet (high). New test type net.captive_portal (net family -> connectivity category). App gains usesCleartextTraffic (a network diagnostic that intentionally probes plain HTTP). Builds; measurement verdict tests still green. On-device verification deferred with the rest (flaky test devices). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Echolot app
The production Android client (spec). Native Kotlin + Jetpack Compose. Multi-module; built bottom-up from a verifiable protocol spine.
Modules
| Module | Type | Status |
|---|---|---|
core-protocol |
pure Kotlin/JVM | done — client half of probe-protocol.md, verified live against the server |
core-measurement |
pure Kotlin/JVM | planned — measurement-schema.md types |
core-probe |
Android lib | planned — app-tier probes, ported from echolot-prober |
core-shizuku |
Android lib | planned — dual-path executor (UserService + newProcess fallback) |
app |
Android app | planned — Compose UI |
core-protocol is deliberately Android-free so it builds and unit-tests on any JDK (no Android
SDK) and can run integration tests against a live server.
core-protocol
Implements the control plane (SPKI-pinned enrollment/profile/sessions via HttpsURLConnection —
Android-API-1 compatible, hostname verification off because trust is the pin), the HKDF-SHA256
session-key schedule, and the binary ELT1 UDP data plane (HMAC gate, ECHO + observation block,
MTU probe) — byte-compatible with the Go server.
./gradlew :core-protocol:test # unit tests (crypto vectors, wire round-trip)
scripts/test-fmr.sh # live end-to-end test against the deployed server
test-fmr.sh mints an enrollment token over SSH, enrolls via the public control plane, computes
the SPKI pin from the served cert, and runs LiveServerTest — proving the client speaks the wire
protocol to the real server (enroll → profile → session → echo+observation → MTU → observations).
The live test self-skips when ECHOLOT_LIVE_* env vars are absent, so unit runs and CI stay green
offline.