refactor(app): drop PIF resolvers + dump purge
Remove PatchLevelManager (auto-resolved the security-patch date from an installed PlayIntegrityFix module into security_patch.txt, with a FileObserver hot-reload) and BulletinPoller (scheduled bulletin refresh), and their App.kt init/start calls. Add purgeDebugDiagnostics(): release builds sweep stale teesim-*.bin dumps from /data/local/tmp at boot so a prior debug install can't leave a detection artifact. Stabilize the InterceptorUtils diagnostic dump path to a single file instead of one per call.
This commit is contained in:
Enginex0
@@ -6,12 +6,11 @@ import android.content.Context
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import android.content.ContextWrapper
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import android.content.ContextWrapper
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import android.os.Build
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import android.os.Build
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import android.os.Looper
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import android.os.Looper
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import java.io.File
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import java.security.Security
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import java.security.Security
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import org.bouncycastle.jce.provider.BouncyCastleProvider
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import org.bouncycastle.jce.provider.BouncyCastleProvider
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import org.matrix.TEESimulator.config.BootStateManager
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import org.matrix.TEESimulator.config.BootStateManager
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import org.matrix.TEESimulator.config.BulletinPoller
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import org.matrix.TEESimulator.config.ConfigurationManager
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import org.matrix.TEESimulator.config.ConfigurationManager
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import org.matrix.TEESimulator.config.PatchLevelManager
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import org.matrix.TEESimulator.interception.keystore.AbstractKeystoreInterceptor
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import org.matrix.TEESimulator.interception.keystore.AbstractKeystoreInterceptor
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import org.matrix.TEESimulator.interception.keystore.Keystore2Interceptor
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import org.matrix.TEESimulator.interception.keystore.Keystore2Interceptor
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import org.matrix.TEESimulator.interception.keystore.KeystoreInterceptor
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import org.matrix.TEESimulator.interception.keystore.KeystoreInterceptor
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@@ -41,12 +40,12 @@ object App {
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}
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}
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try {
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try {
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purgeDebugDiagnostics()
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prepareEnvironment()
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prepareEnvironment()
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// Spoof boot-state and patch-level props before any hook attaches,
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// Spoof boot-state props before any hook attaches, so keystore2's
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// so keystore2's cached snapshot reflects the spoofed values.
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// cached snapshot reflects the spoofed values.
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BootStateManager.apply()
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BootStateManager.apply()
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PatchLevelManager.initialize()
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// Load the package configuration.
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// Load the package configuration.
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ConfigurationManager.initialize()
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ConfigurationManager.initialize()
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@@ -65,12 +64,6 @@ object App {
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NativeCertGen.initialize("/data/adb/modules/tricky_store/libcertgen.so")
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NativeCertGen.initialize("/data/adb/modules/tricky_store/libcertgen.so")
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try {
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BulletinPoller.start()
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} catch (e: Throwable) {
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SystemLogger.error("Failed to start BulletinPoller", e)
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}
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// This starts the message queue processing. It blocks here indefinitely
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// This starts the message queue processing. It blocks here indefinitely
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// processing messages until Looper.myLooper().quit() is called.
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// processing messages until Looper.myLooper().quit() is called.
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Looper.loop()
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Looper.loop()
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@@ -80,6 +73,25 @@ object App {
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}
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}
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}
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}
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/**
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* Release builds never emit diagnostics. Sweep any `.bin` dumps a prior
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* debug install left in the world-readable temp dir so they can't act as a
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* detection artifact for apps that probe /data/local/tmp.
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*/
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private fun purgeDebugDiagnostics() {
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if (SystemLogger.isDebugBuild) return
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val stale =
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File("/data/local/tmp").listFiles { _, name ->
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name.startsWith("teesim-") && name.endsWith(".bin")
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} ?: return
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stale.forEach { runCatching { it.delete() } }
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if (stale.isNotEmpty()) {
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// warning() bypasses the rate limiter, so this once-per-boot audit
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// line survives the noisy startup window.
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SystemLogger.warning("Purged ${stale.size} stale debug diagnostic(s) from /data/local/tmp")
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}
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}
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/** Initializes the necessary Android framework internals to satisfy KeyStore requirements. */
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/** Initializes the necessary Android framework internals to satisfy KeyStore requirements. */
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private fun prepareEnvironment() {
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private fun prepareEnvironment() {
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// 1. Prepare Main Looper
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// 1. Prepare Main Looper
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@@ -1,193 +0,0 @@
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package org.matrix.TEESimulator.config
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import android.os.Handler
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import android.os.HandlerThread
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import java.io.File
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import java.net.URL
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import java.nio.file.Files
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import java.nio.file.StandardCopyOption
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import javax.net.ssl.HttpsURLConnection
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import org.json.JSONArray
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import org.json.JSONObject
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import org.matrix.TEESimulator.BuildConfig
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import org.matrix.TEESimulator.logging.SystemLogger
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object BulletinPoller {
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private const val BULLETIN_URL = "https://source.android.com/docs/security/bulletin/pixel"
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private const val PATCH_FILE = "/data/adb/tricky_store/security_patch.txt"
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private const val HISTORY_FILE = "/data/adb/tricky_store/last_bulletin_fetch.json"
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private const val HISTORY_STAGING = "/data/adb/tricky_store/last_bulletin_fetch.json.next"
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private const val HISTORY_CAP = 10
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private const val CONNECT_TIMEOUT_MS = 10_000
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private const val READ_TIMEOUT_MS = 15_000
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private const val STEADY_INTERVAL_MS = 24L * 60 * 60 * 1000
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private val BOOTSTRAP_INTERVALS = longArrayOf(5_000, 30_000, 120_000, 600_000, 1_800_000)
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private val DATE_REGEX = Regex("<td>(\\d{4}-\\d{2}-\\d{2})</td>")
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private val PATCH_DATE_PATTERN = Regex("^\\d{4}-\\d{2}-\\d{2}$")
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private lateinit var handler: Handler
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@Volatile private var bootstrapStep = 0
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@Volatile private var steadyArmed = false
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fun start() {
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val thread = HandlerThread("BulletinPoller").apply { start() }
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handler = Handler(thread.looper)
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handler.postDelayed(::pollOnce, BOOTSTRAP_INTERVALS[0])
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}
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private fun pollOnce() {
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try {
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val result = fetchAndParse()
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appendHistory(result)
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scheduleNext(result.status == "success")
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} catch (t: Throwable) {
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SystemLogger.error("BulletinPoller: pollOnce failed", t)
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scheduleNext(false)
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}
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}
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private fun scheduleNext(success: Boolean) {
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if (success || steadyArmed) {
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steadyArmed = true
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handler.postDelayed(::pollOnce, STEADY_INTERVAL_MS)
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return
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}
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bootstrapStep++
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if (bootstrapStep >= BOOTSTRAP_INTERVALS.size) {
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steadyArmed = true
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handler.postDelayed(::pollOnce, STEADY_INTERVAL_MS)
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} else {
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handler.postDelayed(::pollOnce, BOOTSTRAP_INTERVALS[bootstrapStep])
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}
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}
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private data class FetchResult(
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val ts: Long,
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val status: String,
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val httpCode: Int?,
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val parsedDate: String?,
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val applied: Boolean,
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val error: String?,
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)
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private fun fetchAndParse(): FetchResult {
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val ts = System.currentTimeMillis()
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var conn: HttpsURLConnection? = null
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return try {
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conn =
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(URL(BULLETIN_URL).openConnection() as HttpsURLConnection).apply {
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connectTimeout = CONNECT_TIMEOUT_MS
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readTimeout = READ_TIMEOUT_MS
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setRequestProperty(
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"User-Agent",
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"TEESimulator/${BuildConfig.VERSION_NAME}",
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)
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requestMethod = "GET"
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}
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val code = conn.responseCode
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if (code != 200) {
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return FetchResult(ts, "network_error", code, null, false, "HTTP $code")
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}
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val html = conn.inputStream.bufferedReader().use { it.readText() }
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val date = DATE_REGEX.find(html)?.groupValues?.get(1)
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if (date == null) {
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return FetchResult(
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ts,
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"parse_error",
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code,
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null,
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false,
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"no <td>YYYY-MM-DD</td> match",
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)
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}
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val current = currentPatch()
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if (current == null || date <= current) {
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return FetchResult(ts, "success", code, date, false, null)
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}
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if (PatchLevelManager.updateTo(date)) {
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FetchResult(ts, "success", code, date, true, null)
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} else {
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FetchResult(
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ts,
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"validation_rejected",
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code,
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date,
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false,
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"PatchLevelManager.updateTo rejected $date",
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)
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}
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} catch (e: Exception) {
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FetchResult(ts, "network_error", null, null, false, e.toString())
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} finally {
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conn?.disconnect()
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}
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}
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private fun currentPatch(): String? {
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val f = File(PATCH_FILE)
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if (!f.exists()) return null
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val raw = try {
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f.readLines()
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.firstOrNull { it.startsWith("system=") }
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?.substringAfter("system=")
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?.trim()
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?.takeIf { it != "prop" && it.isNotEmpty() }
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} catch (_: Exception) {
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null
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}
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if (raw == null) return null
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if (PATCH_DATE_PATTERN.matches(raw)) return raw
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SystemLogger.warning(
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"BulletinPoller: ignoring malformed system='$raw' in $PATCH_FILE"
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)
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return null
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}
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private fun appendHistory(result: FetchResult) {
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try {
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val target = File(HISTORY_FILE)
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val staging = File(HISTORY_STAGING)
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val existing = if (target.exists()) runCatching { target.readText() }.getOrNull() else null
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val history =
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existing
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?.let { runCatching { JSONObject(it).optJSONArray("history") }.getOrNull() }
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?: JSONArray()
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val entry =
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JSONObject().apply {
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put("ts", result.ts)
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put("status", result.status)
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put("http_code", result.httpCode ?: JSONObject.NULL)
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put("parsed_date", result.parsedDate ?: JSONObject.NULL)
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put("applied", result.applied)
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put("error", result.error ?: JSONObject.NULL)
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}
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history.put(entry)
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while (history.length() > HISTORY_CAP) history.remove(0)
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val latestKnown =
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(0 until history.length())
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.mapNotNull {
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history.optJSONObject(it)?.optString("parsed_date", "")?.takeIf { d ->
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d.isNotBlank()
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}
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}
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.lastOrNull()
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val root =
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JSONObject().apply {
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put("latest_known_date", latestKnown ?: JSONObject.NULL)
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put("history", history)
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}
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staging.writeText(root.toString(2))
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Files.move(
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staging.toPath(),
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target.toPath(),
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StandardCopyOption.ATOMIC_MOVE,
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StandardCopyOption.REPLACE_EXISTING,
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)
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} catch (e: Exception) {
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SystemLogger.error("BulletinPoller: failed to persist history", e)
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}
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}
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}
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@@ -1,192 +0,0 @@
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package org.matrix.TEESimulator.config
|
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|
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import android.os.Build
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import android.os.FileObserver
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import android.os.SystemProperties
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import java.io.File
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import java.nio.file.Files
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import java.nio.file.StandardCopyOption
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import java.time.LocalDate
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import org.json.JSONObject
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import org.matrix.TEESimulator.logging.SystemLogger
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import org.matrix.TEESimulator.util.AndroidDeviceUtils
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|
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object PatchLevelManager {
|
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private const val PATCH_FILE = "/data/adb/tricky_store/security_patch.txt"
|
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private const val STAGING_FILE = "/data/adb/tricky_store/security_patch.txt.next"
|
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private const val PIF_DIR = "/data/adb/modules/playintegrityfix"
|
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private const val FLOOR_YYYYMMDD = 20200101
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|
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private const val MAX_PAST_OFFSET = 10000
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|
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|
|
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/**
|
|
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* Pixel security bulletins publish monthly; pre-announced dates occasionally
|
|
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* slip by 2-4 weeks. 60 days covers that window without admitting a
|
|
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* far-future date from a hostile or mis-parsed bulletin response.
|
|
||||||
*/
|
|
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private const val MAX_FUTURE_DAYS = 60L
|
|
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|
|
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private val PIF_FILENAMES =
|
|
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setOf("pif.json", "pif.prop", "custom.pif.json", "custom.pif.prop")
|
|
||||||
|
|
||||||
private val DATE_PATTERN = Regex("^\\d{4}-\\d{2}-\\d{2}$")
|
|
||||||
private val PROP_PATTERN = Regex("^SECURITY_PATCH=(.+)$", RegexOption.MULTILINE)
|
|
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private val SECTION_HEADER = Regex("^\\[[a-zA-Z0-9_.-]+]$")
|
|
||||||
private val GLOBAL_KEYS = setOf("system", "boot", "vendor", "all")
|
|
||||||
|
|
||||||
private val PIF_SOURCES =
|
|
||||||
listOf(
|
|
||||||
"/data/adb/modules/playintegrityfix/pif.json",
|
|
||||||
"/data/adb/pif.json",
|
|
||||||
"/data/adb/modules/playintegrityfix/pif.prop",
|
|
||||||
"/data/adb/pif.prop",
|
|
||||||
"/data/adb/modules/playintegrityfix/custom.pif.json",
|
|
||||||
"/data/adb/modules/playintegrityfix/custom.pif.prop",
|
|
||||||
)
|
|
||||||
|
|
||||||
fun initialize() {
|
|
||||||
refreshFromSources()
|
|
||||||
startPifObserver()
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun refreshFromSources() {
|
|
||||||
val date =
|
|
||||||
resolvePifPatch()
|
|
||||||
?: SystemProperties.get(
|
|
||||||
"ro.build.version.security_patch",
|
|
||||||
Build.VERSION.SECURITY_PATCH,
|
|
||||||
)
|
|
||||||
SystemLogger.info("PatchLevelManager: resolved patch date = $date")
|
|
||||||
applyToProps(date)
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun startPifObserver() {
|
|
||||||
if (!File(PIF_DIR).exists()) {
|
|
||||||
SystemLogger.debug("PatchLevelManager: PIF dir absent, hot-reload disabled")
|
|
||||||
return
|
|
||||||
}
|
|
||||||
PifObserver.startWatching()
|
|
||||||
}
|
|
||||||
|
|
||||||
@Synchronized
|
|
||||||
private fun applyToProps(date: String) {
|
|
||||||
if (!DATE_PATTERN.matches(date)) {
|
|
||||||
SystemLogger.warning(
|
|
||||||
"PatchLevelManager: skip resetprop for invalid date: $date"
|
|
||||||
)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
AndroidDeviceUtils.setProperty("ro.build.version.security_patch", date)
|
|
||||||
AndroidDeviceUtils.setProperty("ro.vendor.build.security_patch", date)
|
|
||||||
}
|
|
||||||
|
|
||||||
fun updateTo(date: String): Boolean {
|
|
||||||
if (!DATE_PATTERN.matches(date)) {
|
|
||||||
SystemLogger.warning("PatchLevelManager: invalid date format: $date")
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
val dateInt = date.replace("-", "").toInt()
|
|
||||||
if (dateInt < FLOOR_YYYYMMDD) {
|
|
||||||
SystemLogger.warning("PatchLevelManager: $date below floor $FLOOR_YYYYMMDD")
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
val now = LocalDate.now()
|
|
||||||
val today = now.year * 10000 + now.monthValue * 100 + now.dayOfMonth
|
|
||||||
if (today >= dateInt + MAX_PAST_OFFSET) {
|
|
||||||
SystemLogger.warning(
|
|
||||||
"PatchLevelManager: $date more than 1y older than today ($today)"
|
|
||||||
)
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
val maxFuture =
|
|
||||||
now.plusDays(MAX_FUTURE_DAYS).let {
|
|
||||||
it.year * 10000 + it.monthValue * 100 + it.dayOfMonth
|
|
||||||
}
|
|
||||||
if (dateInt > maxFuture) {
|
|
||||||
SystemLogger.warning(
|
|
||||||
"PatchLevelManager: $date more than $MAX_FUTURE_DAYS days in future ($maxFuture)"
|
|
||||||
)
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
try {
|
|
||||||
atomicWrite(date)
|
|
||||||
} catch (e: Exception) {
|
|
||||||
SystemLogger.error("PatchLevelManager: atomicWrite failed for $date", e)
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
applyToProps(date)
|
|
||||||
SystemLogger.info("PatchLevelManager: applied patch date $date")
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun resolvePifPatch(): String? {
|
|
||||||
val source =
|
|
||||||
PIF_SOURCES.map(::File).lastOrNull { it.exists() && it.length() > 0 }
|
|
||||||
?: return null
|
|
||||||
return try {
|
|
||||||
val text = source.readText()
|
|
||||||
val parsed =
|
|
||||||
if (source.name.endsWith(".json")) {
|
|
||||||
JSONObject(text).optString("SECURITY_PATCH", "")
|
|
||||||
} else {
|
|
||||||
PROP_PATTERN.find(text)?.groupValues?.get(1)?.trim().orEmpty()
|
|
||||||
}
|
|
||||||
parsed.takeIf { it.isNotBlank() }
|
|
||||||
} catch (e: Exception) {
|
|
||||||
SystemLogger.warning(
|
|
||||||
"PatchLevelManager: failed to parse ${source.path}: ${e.message}"
|
|
||||||
)
|
|
||||||
null
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun atomicWrite(date: String) {
|
|
||||||
val target = File(PATCH_FILE)
|
|
||||||
val staging = File(STAGING_FILE)
|
|
||||||
staging.writeText(mergedContents(target, date))
|
|
||||||
Files.move(
|
|
||||||
staging.toPath(),
|
|
||||||
target.toPath(),
|
|
||||||
StandardCopyOption.ATOMIC_MOVE,
|
|
||||||
StandardCopyOption.REPLACE_EXISTING,
|
|
||||||
)
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun mergedContents(target: File, date: String): String {
|
|
||||||
val globalBlock = "system=$date\nboot=$date\nvendor=$date\n"
|
|
||||||
if (!target.exists()) return globalBlock
|
|
||||||
val tail = stripGlobalAssignments(target.readLines())
|
|
||||||
if (tail.isEmpty()) return globalBlock
|
|
||||||
return globalBlock + tail.joinToString("\n", prefix = "\n", postfix = "\n")
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun stripGlobalAssignments(lines: List<String>): List<String> {
|
|
||||||
val kept = mutableListOf<String>()
|
|
||||||
var inGlobal = true
|
|
||||||
for (line in lines) {
|
|
||||||
val trimmed = line.trim()
|
|
||||||
if (SECTION_HEADER.matches(trimmed)) {
|
|
||||||
inGlobal = false
|
|
||||||
kept += line
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
if (inGlobal && isGlobalKeyAssignment(trimmed)) continue
|
|
||||||
kept += line
|
|
||||||
}
|
|
||||||
return kept
|
|
||||||
}
|
|
||||||
|
|
||||||
private fun isGlobalKeyAssignment(trimmed: String): Boolean {
|
|
||||||
if (trimmed.isEmpty() || trimmed.startsWith("#") || '=' !in trimmed) return false
|
|
||||||
val key = trimmed.substringBefore('=').trim().lowercase()
|
|
||||||
return key in GLOBAL_KEYS
|
|
||||||
}
|
|
||||||
|
|
||||||
private object PifObserver :
|
|
||||||
FileObserver(File(PIF_DIR), CLOSE_WRITE or MOVED_TO or DELETE) {
|
|
||||||
override fun onEvent(event: Int, path: String?) {
|
|
||||||
if (path == null || path !in PIF_FILENAMES) return
|
|
||||||
SystemLogger.info("PatchLevelManager: PIF change ($path), refreshing")
|
|
||||||
refreshFromSources()
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@@ -127,7 +127,7 @@ object InterceptorUtils {
|
|||||||
val savedPos = parcel.dataPosition()
|
val savedPos = parcel.dataPosition()
|
||||||
val wire = parcel.marshall()
|
val wire = parcel.marshall()
|
||||||
parcel.setDataPosition(savedPos)
|
parcel.setDataPosition(savedPos)
|
||||||
val path = "/data/local/tmp/teesim-$diagnosticTag-${System.nanoTime()}.bin"
|
val path = "/data/local/tmp/teesim-$diagnosticTag.bin"
|
||||||
runCatching { java.io.File(path).writeBytes(wire) }
|
runCatching { java.io.File(path).writeBytes(wire) }
|
||||||
SystemLogger.debug("[$diagnosticTag] reply len=${wire.size} path=$path")
|
SystemLogger.debug("[$diagnosticTag] reply len=${wire.size} path=$path")
|
||||||
}
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user