mrambossekandClaude Opus 5
515a6aef04
ProbeSession sends paced upstream trains and fetches the server's columnar received view; UpstreamTrainMeasurement lines both ledgers up per sequence number into TrainEvidence - the directional loss attribution a round trip cannot make. Loss is computed against the server's total count, not its row list, so a buffer-capped report can never invent loss on big trains. A missing report stays ambiguous by name (report lost, or server predates trains) instead of being blamed on the train. downtrain actions can now request a DSCP marking, recording dscp_applied so a survival comparison never blames the path for a marking the sender skipped. Also logged: fmr runs v0.11.2 built from commits this repo's remote never saw, so --self-update on fmr is OFF-LIMITS until that lineage is repaired - the fresh server-v0.9.2 release is newest-created but semantically older, and the updater compares strings, not SemVer. 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.