Examples with ParcelFileDescriptor android.os.ParcelFileDescriptor used on opensource projects

Example 41 with ParcelFileDescriptor

use of android.os.ParcelFileDescriptor in project platform_frameworks_base by android.

the class BasePrintTest method runShellCommand.

public static String runShellCommand(Instrumentation instrumentation, String cmd) throws IOException {
    ParcelFileDescriptor pfd = instrumentation.getUiAutomation().executeShellCommand(cmd);
    byte[] buf = new byte[512];
    int bytesRead;
    FileInputStream fis = new ParcelFileDescriptor.AutoCloseInputStream(pfd);
    StringBuffer stdout = new StringBuffer();
    while ((bytesRead = fis.read(buf)) != -1) {
        stdout.append(new String(buf, 0, bytesRead));
    }
    fis.close();
    return stdout.toString();
}

Example 42 with ParcelFileDescriptor

use of android.os.ParcelFileDescriptor in project platform_frameworks_base by android.

the class BasePrintTest method getEnabledImes.

private String[] getEnabledImes() throws IOException {
    List<String> imeList = new ArrayList<>();
    ParcelFileDescriptor pfd = getInstrumentation().getUiAutomation().executeShellCommand(COMMAND_LIST_ENABLED_IME_COMPONENTS);
    try (BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(pfd.getFileDescriptor())))) {
        String line;
        while ((line = reader.readLine()) != null) {
            imeList.add(line);
        }
    }
    String[] imeArray = new String[imeList.size()];
    imeList.toArray(imeArray);
    return imeArray;
}

Example 43 with ParcelFileDescriptor

use of android.os.ParcelFileDescriptor in project platform_frameworks_base by android.

the class ProcessStatsService method getCurrentStats.

public byte[] getCurrentStats(List<ParcelFileDescriptor> historic) {
    mAm.mContext.enforceCallingOrSelfPermission(android.Manifest.permission.PACKAGE_USAGE_STATS, null);
    Parcel current = Parcel.obtain();
    synchronized (mAm) {
        long now = SystemClock.uptimeMillis();
        mProcessStats.mTimePeriodEndRealtime = SystemClock.elapsedRealtime();
        mProcessStats.mTimePeriodEndUptime = now;
        mProcessStats.writeToParcel(current, now, 0);
    }
    mWriteLock.lock();
    try {
        if (historic != null) {
            ArrayList<String> files = getCommittedFiles(0, false, true);
            if (files != null) {
                for (int i = files.size() - 1; i >= 0; i--) {
                    try {
                        ParcelFileDescriptor pfd = ParcelFileDescriptor.open(new File(files.get(i)), ParcelFileDescriptor.MODE_READ_ONLY);
                        historic.add(pfd);
                    } catch (IOException e) {
                        Slog.w(TAG, "Failure opening procstat file " + files.get(i), e);
                    }
                }
            }
        }
    } finally {
        mWriteLock.unlock();
    }
    return current.marshall();
}

Example 44 with ParcelFileDescriptor

use of android.os.ParcelFileDescriptor in project platform_frameworks_base by android.

the class ProcessStatsService method getStatsOverTime.

public ParcelFileDescriptor getStatsOverTime(long minTime) {
    mAm.mContext.enforceCallingOrSelfPermission(android.Manifest.permission.PACKAGE_USAGE_STATS, null);
    Parcel current = Parcel.obtain();
    long curTime;
    synchronized (mAm) {
        long now = SystemClock.uptimeMillis();
        mProcessStats.mTimePeriodEndRealtime = SystemClock.elapsedRealtime();
        mProcessStats.mTimePeriodEndUptime = now;
        mProcessStats.writeToParcel(current, now, 0);
        curTime = mProcessStats.mTimePeriodEndRealtime - mProcessStats.mTimePeriodStartRealtime;
    }
    mWriteLock.lock();
    try {
        if (curTime < minTime) {
            // Need to add in older stats to reach desired time.
            ArrayList<String> files = getCommittedFiles(0, false, true);
            if (files != null && files.size() > 0) {
                current.setDataPosition(0);
                ProcessStats stats = ProcessStats.CREATOR.createFromParcel(current);
                current.recycle();
                int i = files.size() - 1;
                while (i >= 0 && (stats.mTimePeriodEndRealtime - stats.mTimePeriodStartRealtime) < minTime) {
                    AtomicFile file = new AtomicFile(new File(files.get(i)));
                    i--;
                    ProcessStats moreStats = new ProcessStats(false);
                    readLocked(moreStats, file);
                    if (moreStats.mReadError == null) {
                        stats.add(moreStats);
                        StringBuilder sb = new StringBuilder();
                        sb.append("Added stats: ");
                        sb.append(moreStats.mTimePeriodStartClockStr);
                        sb.append(", over ");
                        TimeUtils.formatDuration(moreStats.mTimePeriodEndRealtime - moreStats.mTimePeriodStartRealtime, sb);
                        Slog.i(TAG, sb.toString());
                    } else {
                        Slog.w(TAG, "Failure reading " + files.get(i + 1) + "; " + moreStats.mReadError);
                        continue;
                    }
                }
                current = Parcel.obtain();
                stats.writeToParcel(current, 0);
            }
        }
        final byte[] outData = current.marshall();
        current.recycle();
        final ParcelFileDescriptor[] fds = ParcelFileDescriptor.createPipe();
        Thread thr = new Thread("ProcessStats pipe output") {

            public void run() {
                FileOutputStream fout = new ParcelFileDescriptor.AutoCloseOutputStream(fds[1]);
                try {
                    fout.write(outData);
                    fout.close();
                } catch (IOException e) {
                    Slog.w(TAG, "Failure writing pipe", e);
                }
            }
        };
        thr.start();
        return fds[0];
    } catch (IOException e) {
        Slog.w(TAG, "Failed building output pipe", e);
    } finally {
        mWriteLock.unlock();
    }
    return null;
}

Example 45 with ParcelFileDescriptor

use of android.os.ParcelFileDescriptor in project platform_frameworks_base by android.

the class Vpn method establish.

/**
     * Establish a VPN network and return the file descriptor of the VPN
     * interface. This methods returns {@code null} if the application is
     * revoked or not prepared.
     *
     * @param config The parameters to configure the network.
     * @return The file descriptor of the VPN interface.
     */
public synchronized ParcelFileDescriptor establish(VpnConfig config) {
    // Check if the caller is already prepared.
    UserManager mgr = UserManager.get(mContext);
    if (Binder.getCallingUid() != mOwnerUID) {
        return null;
    }
    // Check to ensure consent hasn't been revoked since we were prepared.
    if (!isVpnUserPreConsented(mPackage)) {
        return null;
    }
    // Check if the service is properly declared.
    Intent intent = new Intent(VpnConfig.SERVICE_INTERFACE);
    intent.setClassName(mPackage, config.user);
    long token = Binder.clearCallingIdentity();
    try {
        // Restricted users are not allowed to create VPNs, they are tied to Owner
        UserInfo user = mgr.getUserInfo(mUserHandle);
        if (user.isRestricted()) {
            throw new SecurityException("Restricted users cannot establish VPNs");
        }
        ResolveInfo info = AppGlobals.getPackageManager().resolveService(intent, null, 0, mUserHandle);
        if (info == null) {
            throw new SecurityException("Cannot find " + config.user);
        }
        if (!BIND_VPN_SERVICE.equals(info.serviceInfo.permission)) {
            throw new SecurityException(config.user + " does not require " + BIND_VPN_SERVICE);
        }
    } catch (RemoteException e) {
        throw new SecurityException("Cannot find " + config.user);
    } finally {
        Binder.restoreCallingIdentity(token);
    }
    // Save the old config in case we need to go back.
    VpnConfig oldConfig = mConfig;
    String oldInterface = mInterface;
    Connection oldConnection = mConnection;
    NetworkAgent oldNetworkAgent = mNetworkAgent;
    mNetworkAgent = null;
    Set<UidRange> oldUsers = mVpnUsers;
    // Configure the interface. Abort if any of these steps fails.
    ParcelFileDescriptor tun = ParcelFileDescriptor.adoptFd(jniCreate(config.mtu));
    try {
        updateState(DetailedState.CONNECTING, "establish");
        String interfaze = jniGetName(tun.getFd());
        // TEMP use the old jni calls until there is support for netd address setting
        StringBuilder builder = new StringBuilder();
        for (LinkAddress address : config.addresses) {
            builder.append(" " + address);
        }
        if (jniSetAddresses(interfaze, builder.toString()) < 1) {
            throw new IllegalArgumentException("At least one address must be specified");
        }
        Connection connection = new Connection();
        if (!mContext.bindServiceAsUser(intent, connection, Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE, new UserHandle(mUserHandle))) {
            throw new IllegalStateException("Cannot bind " + config.user);
        }
        mConnection = connection;
        mInterface = interfaze;
        // Fill more values.
        config.user = mPackage;
        config.interfaze = mInterface;
        config.startTime = SystemClock.elapsedRealtime();
        mConfig = config;
        // Set up forwarding and DNS rules.
        agentConnect();
        if (oldConnection != null) {
            mContext.unbindService(oldConnection);
        }
        // Remove the old tun's user forwarding rules
        // The new tun's user rules have already been added so they will take over
        // as rules are deleted. This prevents data leakage as the rules are moved over.
        agentDisconnect(oldNetworkAgent);
        if (oldInterface != null && !oldInterface.equals(interfaze)) {
            jniReset(oldInterface);
        }
        try {
            IoUtils.setBlocking(tun.getFileDescriptor(), config.blocking);
        } catch (IOException e) {
            throw new IllegalStateException("Cannot set tunnel's fd as blocking=" + config.blocking, e);
        }
    } catch (RuntimeException e) {
        IoUtils.closeQuietly(tun);
        agentDisconnect();
        // restore old state
        mConfig = oldConfig;
        mConnection = oldConnection;
        mVpnUsers = oldUsers;
        mNetworkAgent = oldNetworkAgent;
        mInterface = oldInterface;
        throw e;
    }
    Log.i(TAG, "Established by " + config.user + " on " + mInterface);
    return tun;
}