172d38bcda
Perform the relabel of the /data/data/<pkg> directories when the app is being scanned by the PMS. The impetus for this change was that the data directories of forward locked apps were receiving the wrong label during an OTA. Because the PMS doesn't actually scan forward locked apps til later in the boot process, the prior restorecon call was actually applying the default label of system_data_file for all such apps. By performing a restorecon on each individual app as they are entered into the PMS we can handle them correctly. This mechanism also allows us to pass down the seinfo tag as part of the restorecon call which drops our need to rely on the contents of packages.list. Change-Id: Ie440cba2c96f0907458086348197e1506d31c1b6 Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>
411 lines
12 KiB
Java
411 lines
12 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.pm;
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import android.content.pm.PackageStats;
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import android.net.LocalSocket;
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import android.net.LocalSocketAddress;
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import android.util.Slog;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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public final class Installer {
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private static final String TAG = "Installer";
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private static final boolean LOCAL_DEBUG = false;
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InputStream mIn;
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OutputStream mOut;
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LocalSocket mSocket;
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byte buf[] = new byte[1024];
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int buflen = 0;
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private boolean connect() {
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if (mSocket != null) {
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return true;
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}
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Slog.i(TAG, "connecting...");
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try {
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mSocket = new LocalSocket();
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LocalSocketAddress address = new LocalSocketAddress("installd",
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LocalSocketAddress.Namespace.RESERVED);
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mSocket.connect(address);
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mIn = mSocket.getInputStream();
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mOut = mSocket.getOutputStream();
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} catch (IOException ex) {
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disconnect();
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return false;
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}
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return true;
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}
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private void disconnect() {
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Slog.i(TAG, "disconnecting...");
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try {
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if (mSocket != null)
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mSocket.close();
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} catch (IOException ex) {
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}
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try {
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if (mIn != null)
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mIn.close();
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} catch (IOException ex) {
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}
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try {
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if (mOut != null)
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mOut.close();
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} catch (IOException ex) {
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}
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mSocket = null;
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mIn = null;
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mOut = null;
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}
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private boolean readBytes(byte buffer[], int len) {
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int off = 0, count;
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if (len < 0)
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return false;
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while (off != len) {
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try {
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count = mIn.read(buffer, off, len - off);
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if (count <= 0) {
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Slog.e(TAG, "read error " + count);
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break;
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}
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off += count;
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} catch (IOException ex) {
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Slog.e(TAG, "read exception");
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break;
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}
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}
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if (LOCAL_DEBUG) {
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Slog.i(TAG, "read " + len + " bytes");
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}
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if (off == len)
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return true;
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disconnect();
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return false;
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}
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private boolean readReply() {
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int len;
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buflen = 0;
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if (!readBytes(buf, 2))
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return false;
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len = (((int) buf[0]) & 0xff) | ((((int) buf[1]) & 0xff) << 8);
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if ((len < 1) || (len > 1024)) {
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Slog.e(TAG, "invalid reply length (" + len + ")");
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disconnect();
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return false;
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}
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if (!readBytes(buf, len))
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return false;
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buflen = len;
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return true;
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}
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private boolean writeCommand(String _cmd) {
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byte[] cmd = _cmd.getBytes();
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int len = cmd.length;
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if ((len < 1) || (len > 1024))
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return false;
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buf[0] = (byte) (len & 0xff);
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buf[1] = (byte) ((len >> 8) & 0xff);
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try {
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mOut.write(buf, 0, 2);
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mOut.write(cmd, 0, len);
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} catch (IOException ex) {
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Slog.e(TAG, "write error");
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disconnect();
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return false;
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}
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return true;
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}
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private synchronized String transaction(String cmd) {
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if (!connect()) {
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Slog.e(TAG, "connection failed");
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return "-1";
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}
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if (!writeCommand(cmd)) {
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/*
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* If installd died and restarted in the background (unlikely but
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* possible) we'll fail on the next write (this one). Try to
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* reconnect and write the command one more time before giving up.
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*/
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Slog.e(TAG, "write command failed? reconnect!");
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if (!connect() || !writeCommand(cmd)) {
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return "-1";
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}
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}
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if (LOCAL_DEBUG) {
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Slog.i(TAG, "send: '" + cmd + "'");
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}
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if (readReply()) {
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String s = new String(buf, 0, buflen);
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if (LOCAL_DEBUG) {
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Slog.i(TAG, "recv: '" + s + "'");
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}
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return s;
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} else {
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if (LOCAL_DEBUG) {
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Slog.i(TAG, "fail");
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}
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return "-1";
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}
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}
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private int execute(String cmd) {
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String res = transaction(cmd);
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try {
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return Integer.parseInt(res);
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} catch (NumberFormatException ex) {
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return -1;
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}
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}
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public int install(String name, int uid, int gid, String seinfo) {
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StringBuilder builder = new StringBuilder("install");
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builder.append(' ');
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builder.append(name);
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builder.append(' ');
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builder.append(uid);
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builder.append(' ');
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builder.append(gid);
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builder.append(' ');
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builder.append(seinfo != null ? seinfo : "!");
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return execute(builder.toString());
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}
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public int dexopt(String apkPath, int uid, boolean isPublic) {
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StringBuilder builder = new StringBuilder("dexopt");
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builder.append(' ');
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builder.append(apkPath);
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builder.append(' ');
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builder.append(uid);
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builder.append(isPublic ? " 1" : " 0");
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builder.append(" *"); // No pkgName arg present
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return execute(builder.toString());
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}
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public int dexopt(String apkPath, int uid, boolean isPublic, String pkgName) {
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StringBuilder builder = new StringBuilder("dexopt");
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builder.append(' ');
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builder.append(apkPath);
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builder.append(' ');
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builder.append(uid);
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builder.append(isPublic ? " 1" : " 0");
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builder.append(' ');
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builder.append(pkgName);
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return execute(builder.toString());
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}
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public int idmap(String targetApkPath, String overlayApkPath, int uid) {
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StringBuilder builder = new StringBuilder("idmap");
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builder.append(' ');
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builder.append(targetApkPath);
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builder.append(' ');
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builder.append(overlayApkPath);
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builder.append(' ');
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builder.append(uid);
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return execute(builder.toString());
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}
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public int movedex(String srcPath, String dstPath) {
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StringBuilder builder = new StringBuilder("movedex");
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builder.append(' ');
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builder.append(srcPath);
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builder.append(' ');
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builder.append(dstPath);
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return execute(builder.toString());
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}
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public int rmdex(String codePath) {
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StringBuilder builder = new StringBuilder("rmdex");
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builder.append(' ');
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builder.append(codePath);
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return execute(builder.toString());
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}
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public int remove(String name, int userId) {
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StringBuilder builder = new StringBuilder("remove");
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builder.append(' ');
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builder.append(name);
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builder.append(' ');
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builder.append(userId);
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return execute(builder.toString());
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}
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public int rename(String oldname, String newname) {
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StringBuilder builder = new StringBuilder("rename");
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builder.append(' ');
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builder.append(oldname);
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builder.append(' ');
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builder.append(newname);
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return execute(builder.toString());
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}
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public int fixUid(String name, int uid, int gid) {
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StringBuilder builder = new StringBuilder("fixuid");
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builder.append(' ');
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builder.append(name);
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builder.append(' ');
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builder.append(uid);
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builder.append(' ');
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builder.append(gid);
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return execute(builder.toString());
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}
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public int deleteCacheFiles(String name, int userId) {
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StringBuilder builder = new StringBuilder("rmcache");
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builder.append(' ');
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builder.append(name);
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builder.append(' ');
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builder.append(userId);
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return execute(builder.toString());
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}
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public int createUserData(String name, int uid, int userId, String seinfo) {
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StringBuilder builder = new StringBuilder("mkuserdata");
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builder.append(' ');
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builder.append(name);
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builder.append(' ');
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builder.append(uid);
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builder.append(' ');
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builder.append(userId);
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builder.append(' ');
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builder.append(seinfo != null ? seinfo : "!");
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return execute(builder.toString());
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}
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public int removeUserDataDirs(int userId) {
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StringBuilder builder = new StringBuilder("rmuser");
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builder.append(' ');
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builder.append(userId);
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return execute(builder.toString());
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}
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public int clearUserData(String name, int userId) {
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StringBuilder builder = new StringBuilder("rmuserdata");
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builder.append(' ');
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builder.append(name);
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builder.append(' ');
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builder.append(userId);
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return execute(builder.toString());
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}
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public boolean ping() {
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if (execute("ping") < 0) {
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return false;
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} else {
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return true;
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}
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}
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public int freeCache(long freeStorageSize) {
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StringBuilder builder = new StringBuilder("freecache");
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builder.append(' ');
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builder.append(String.valueOf(freeStorageSize));
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return execute(builder.toString());
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}
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public int getSizeInfo(String pkgName, int persona, String apkPath, String libDirPath,
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String fwdLockApkPath, String asecPath, PackageStats pStats) {
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StringBuilder builder = new StringBuilder("getsize");
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builder.append(' ');
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builder.append(pkgName);
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builder.append(' ');
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builder.append(persona);
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builder.append(' ');
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builder.append(apkPath);
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builder.append(' ');
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builder.append(libDirPath != null ? libDirPath : "!");
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builder.append(' ');
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builder.append(fwdLockApkPath != null ? fwdLockApkPath : "!");
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builder.append(' ');
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builder.append(asecPath != null ? asecPath : "!");
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String s = transaction(builder.toString());
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String res[] = s.split(" ");
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if ((res == null) || (res.length != 5)) {
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return -1;
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}
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try {
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pStats.codeSize = Long.parseLong(res[1]);
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pStats.dataSize = Long.parseLong(res[2]);
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pStats.cacheSize = Long.parseLong(res[3]);
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pStats.externalCodeSize = Long.parseLong(res[4]);
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return Integer.parseInt(res[0]);
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} catch (NumberFormatException e) {
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return -1;
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}
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}
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public int moveFiles() {
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return execute("movefiles");
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}
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/**
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* Links the native library directory in an application's directory to its
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* real location.
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*
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* @param dataPath data directory where the application is
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* @param nativeLibPath target native library path
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* @return -1 on error
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*/
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public int linkNativeLibraryDirectory(String dataPath, String nativeLibPath, int userId) {
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if (dataPath == null) {
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Slog.e(TAG, "linkNativeLibraryDirectory dataPath is null");
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return -1;
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} else if (nativeLibPath == null) {
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Slog.e(TAG, "linkNativeLibraryDirectory nativeLibPath is null");
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return -1;
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}
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StringBuilder builder = new StringBuilder("linklib ");
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builder.append(dataPath);
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builder.append(' ');
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builder.append(nativeLibPath);
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builder.append(' ');
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builder.append(userId);
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return execute(builder.toString());
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}
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public boolean restoreconData(String pkgName, String seinfo, int uid) {
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StringBuilder builder = new StringBuilder("restorecondata");
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builder.append(' ');
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builder.append(pkgName);
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builder.append(' ');
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builder.append(seinfo != null ? seinfo : "!");
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builder.append(' ');
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builder.append(uid);
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return (execute(builder.toString()) == 0);
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}
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}
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