private static void addAuditErrorsToDropBox(
DropBoxManager db, SharedPreferences prefs, String headers, int maxSize, String tag)
throws IOException {
if (db == null || !db.isTagEnabled(tag)) return; // Logging disabled
Slog.i(TAG, "Copying audit failures to DropBox");
File file = new File("/proc/last_kmsg");
long fileTime = file.lastModified();
if (fileTime <= 0) {
file = new File("/sys/fs/pstore/console-ramoops");
fileTime = file.lastModified();
}
if (fileTime <= 0) return; // File does not exist
if (prefs != null) {
long lastTime = prefs.getLong(tag, 0);
if (lastTime == fileTime) return; // Already logged this particular file
// TODO: move all these SharedPreferences Editor commits
// outside this function to the end of logBootEvents
prefs.edit().putLong(tag, fileTime).apply();
}
String log = FileUtils.readTextFile(file, maxSize, "[[TRUNCATED]]\n");
StringBuilder sb = new StringBuilder();
for (String line : log.split("\n")) {
if (line.contains("audit")) {
sb.append(line + "\n");
}
}
Slog.i(TAG, "Copied " + sb.toString().length() + " worth of audits to DropBox");
db.addText(tag, headers + sb.toString());
}
private static void addFileWithFootersToDropBox(
DropBoxManager db,
SharedPreferences prefs,
String headers,
String footers,
String filename,
int maxSize,
String tag)
throws IOException {
if (db == null || !db.isTagEnabled(tag)) return; // Logging disabled
File file = new File(filename);
if (file.isDirectory()) return; // Skip subdirectories (likely vendor-specific)
long fileTime = file.lastModified();
if (fileTime <= 0) return; // File does not exist
if (prefs != null) {
long lastTime = prefs.getLong(filename, 0);
if (lastTime == fileTime) return; // Already logged this particular file
// TODO: move all these SharedPreferences Editor commits
// outside this function to the end of logBootEvents
prefs.edit().putLong(filename, fileTime).apply();
}
Slog.i(TAG, "Copying " + filename + " to DropBox (" + tag + ")");
db.addText(tag, headers + FileUtils.readTextFile(file, maxSize, "[[TRUNCATED]]\n") + footers);
}
private static void addFileToDropBox(
DropBoxManager db,
SharedPreferences prefs,
String headers,
String filename,
int maxSize,
String tag)
throws IOException {
if (db == null || !db.isTagEnabled(tag)) return; // Logging disabled
File file = new File(filename);
long fileTime = file.lastModified();
if (fileTime <= 0) return; // File does not exist
if (prefs != null) {
long lastTime = prefs.getLong(filename, 0);
if (lastTime == fileTime) return; // Already logged this particular file
prefs.edit().putLong(filename, fileTime).commit();
}
Slog.i(TAG, "Copying " + filename + " to DropBox (" + tag + ")");
db.addText(tag, headers + FileUtils.readTextFile(file, maxSize, "[[TRUNCATED]]\n"));
}
private void logBootEvents(Context ctx) throws IOException {
final DropBoxManager db = (DropBoxManager) ctx.getSystemService(Context.DROPBOX_SERVICE);
final SharedPreferences prefs = ctx.getSharedPreferences("log_files", Context.MODE_PRIVATE);
final String headers =
new StringBuilder(512)
.append("Build: ")
.append(Build.FINGERPRINT)
.append("\n")
.append("Hardware: ")
.append(Build.BOARD)
.append("\n")
.append("Bootloader: ")
.append(Build.BOOTLOADER)
.append("\n")
.append("Radio: ")
.append(Build.RADIO)
.append("\n")
.append("Kernel: ")
.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"))
.append("\n")
.toString();
String recovery = RecoverySystem.handleAftermath();
if (recovery != null && db != null) {
db.addText("SYSTEM_RECOVERY_LOG", headers + recovery);
}
if (SystemProperties.getLong("ro.runtime.firstboot", 0) == 0) {
String now = Long.toString(System.currentTimeMillis());
SystemProperties.set("ro.runtime.firstboot", now);
if (db != null) db.addText("SYSTEM_BOOT", headers);
// Negative sizes mean to take the *tail* of the file (see FileUtils.readTextFile())
addFileToDropBox(db, prefs, headers, "/proc/last_kmsg", -LOG_SIZE, "SYSTEM_LAST_KMSG");
addFileToDropBox(db, prefs, headers, "/cache/recovery/log", -LOG_SIZE, "SYSTEM_RECOVERY_LOG");
addFileToDropBox(
db, prefs, headers, "/data/dontpanic/apanic_console", -LOG_SIZE, "APANIC_CONSOLE");
addFileToDropBox(
db, prefs, headers, "/data/dontpanic/apanic_threads", -LOG_SIZE, "APANIC_THREADS");
} else {
if (db != null) db.addText("SYSTEM_RESTART", headers);
}
// Scan existing tombstones (in case any new ones appeared)
File[] tombstoneFiles = TOMBSTONE_DIR.listFiles();
for (int i = 0; tombstoneFiles != null && i < tombstoneFiles.length; i++) {
addFileToDropBox(
db, prefs, headers, tombstoneFiles[i].getPath(), LOG_SIZE, "SYSTEM_TOMBSTONE");
}
// Start watching for new tombstone files; will record them as they occur.
// This gets registered with the singleton file observer thread.
sTombstoneObserver =
new FileObserver(TOMBSTONE_DIR.getPath(), FileObserver.CLOSE_WRITE) {
@Override
public void onEvent(int event, String path) {
try {
String filename = new File(TOMBSTONE_DIR, path).getPath();
addFileToDropBox(db, prefs, headers, filename, LOG_SIZE, "SYSTEM_TOMBSTONE");
} catch (IOException e) {
Slog.e(TAG, "Can't log tombstone", e);
}
}
};
sTombstoneObserver.startWatching();
}
private void logBootEvents(Context ctx) throws IOException {
final DropBoxManager db = (DropBoxManager) ctx.getSystemService(Context.DROPBOX_SERVICE);
final SharedPreferences prefs = ctx.getSharedPreferences("log_files", Context.MODE_PRIVATE);
final String headers =
new StringBuilder(512)
.append("Build: ")
.append(Build.FINGERPRINT)
.append("\n")
.append("Hardware: ")
.append(Build.BOARD)
.append("\n")
.append("Revision: ")
.append(SystemProperties.get("ro.revision", ""))
.append("\n")
.append("Bootloader: ")
.append(Build.BOOTLOADER)
.append("\n")
.append("Radio: ")
.append(Build.RADIO)
.append("\n")
.append("Kernel: ")
.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"))
.append("\n")
.toString();
final String bootReason = SystemProperties.get("ro.boot.bootreason", null);
String recovery = RecoverySystem.handleAftermath();
if (recovery != null && db != null) {
db.addText("SYSTEM_RECOVERY_LOG", headers + recovery);
}
String lastKmsgFooter = "";
if (bootReason != null) {
lastKmsgFooter =
new StringBuilder(512)
.append("\n")
.append("Boot info:\n")
.append("Last boot reason: ")
.append(bootReason)
.append("\n")
.toString();
}
if (SystemProperties.getLong("ro.runtime.firstboot", 0) == 0) {
if ("encrypted".equals(SystemProperties.get("ro.crypto.state"))
&& "trigger_restart_min_framework".equals(SystemProperties.get("vold.decrypt"))) {
// Encrypted, first boot to get PIN/pattern/password so data is tmpfs
// Don't set ro.runtime.firstboot so that we will do this again
// when data is properly mounted
} else {
String now = Long.toString(System.currentTimeMillis());
SystemProperties.set("ro.runtime.firstboot", now);
}
if (db != null) db.addText("SYSTEM_BOOT", headers);
// Negative sizes mean to take the *tail* of the file (see FileUtils.readTextFile())
addFileWithFootersToDropBox(
db, prefs, headers, lastKmsgFooter, "/proc/last_kmsg", -LOG_SIZE, "SYSTEM_LAST_KMSG");
addFileWithFootersToDropBox(
db,
prefs,
headers,
lastKmsgFooter,
"/sys/fs/pstore/console-ramoops",
-LOG_SIZE,
"SYSTEM_LAST_KMSG");
addFileToDropBox(db, prefs, headers, "/cache/recovery/log", -LOG_SIZE, "SYSTEM_RECOVERY_LOG");
addFileToDropBox(
db, prefs, headers, "/cache/recovery/last_kmsg", -LOG_SIZE, "SYSTEM_RECOVERY_KMSG");
addFileToDropBox(
db, prefs, headers, "/data/dontpanic/apanic_console", -LOG_SIZE, "APANIC_CONSOLE");
addFileToDropBox(
db, prefs, headers, "/data/dontpanic/apanic_threads", -LOG_SIZE, "APANIC_THREADS");
addAuditErrorsToDropBox(db, prefs, headers, -LOG_SIZE, "SYSTEM_AUDIT");
addFsckErrorsToDropBox(db, prefs, headers, -LOG_SIZE, "SYSTEM_FSCK");
} else {
if (db != null) db.addText("SYSTEM_RESTART", headers);
}
// Scan existing tombstones (in case any new ones appeared)
File[] tombstoneFiles = TOMBSTONE_DIR.listFiles();
for (int i = 0; tombstoneFiles != null && i < tombstoneFiles.length; i++) {
if (tombstoneFiles[i].isFile()) {
addFileToDropBox(
db, prefs, headers, tombstoneFiles[i].getPath(), LOG_SIZE, "SYSTEM_TOMBSTONE");
}
}
// Start watching for new tombstone files; will record them as they occur.
// This gets registered with the singleton file observer thread.
sTombstoneObserver =
new FileObserver(TOMBSTONE_DIR.getPath(), FileObserver.CLOSE_WRITE) {
@Override
public void onEvent(int event, String path) {
try {
File file = new File(TOMBSTONE_DIR, path);
if (file.isFile()) {
addFileToDropBox(db, prefs, headers, file.getPath(), LOG_SIZE, "SYSTEM_TOMBSTONE");
}
} catch (IOException e) {
Slog.e(TAG, "Can't log tombstone", e);
}
}
};
sTombstoneObserver.startWatching();
}