The phone's wireless-debug port rotates and the bridge drops; this makes
adb reconnect automatically. Three pieces:
- adb-beacon (Android dev app): reads adbd's own mDNS advertisement
(_adb-tls-connect._tcp) via NsdManager for the live connect port — no
root, no Shizuku — plus the wlan0 IPv4, and POSTs {ip,port} to fmr every
time it changes (continuous NSD discovery catches rotation in seconds).
Foreground service (specialUse) so it survives backgrounding.
- tools/adb-beacon/receiver.py: ~30-line rendezvous on fmr:9099 (secret-
gated POST stores the latest endpoint; GET returns it). Deployed as
echolot-adb-beacon.service.
- PC connector polls the endpoint and keeps `adb connect` current.
Dev tooling, separate from the product. Bootstrap: sideload the beacon
APK once (no adb needed); thereafter adb self-heals for everything.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
40 lines
1.4 KiB
Kotlin
40 lines
1.4 KiB
Kotlin
// SPDX-FileCopyrightText: 2026 Echolot contributors
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// SPDX-License-Identifier: GPL-3.0-or-later
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plugins {
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// AGP 9 built-in Kotlin (no kotlin.android — see core-probe note).
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alias(libs.plugins.android.application)
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}
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// Dev tool (NOT the product app): reports this phone's rotating wireless-debug
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// endpoint to the fmr beacon so the PC can keep `adb connect` current. Reads
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// the connect port from adbd's own mDNS advertisement (_adb-tls-connect._tcp)
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// via NsdManager — no root, no Shizuku.
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android {
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namespace = "app.echo_lot.adbbeacon"
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compileSdk = 36
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defaultConfig {
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applicationId = "app.echo_lot.adbbeacon"
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minSdk = 26
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targetSdk = 36
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versionCode = 1
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versionName = "0.1.0"
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// Prefilled beacon config (dev tool — secret in the APK is fine).
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buildConfigField("String", "BEACON_URL", "\"http://fmr-1.echo-lot.app:9099/beacon\"")
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buildConfigField("String", "BEACON_SECRET", "\"D4OmG5gGJsElqVVbtYIZbR\"")
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}
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buildTypes { release { isMinifyEnabled = false } }
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_17
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targetCompatibility = JavaVersion.VERSION_17
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}
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buildFeatures { buildConfig = true }
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}
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dependencies {
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implementation(libs.kotlinx.coroutines.android)
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implementation(libs.androidx.core.ktx)
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implementation("androidx.activity:activity:1.9.3")
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}
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