Examples with ErrnoException android.system.ErrnoException used on opensource projects

Example 16 with ErrnoException

use of android.system.ErrnoException in project platform_frameworks_base by android.

the class PackageInstallerService method prepareStageDir.

static void prepareStageDir(File stageDir) throws IOException {
    if (stageDir.exists()) {
        throw new IOException("Session dir already exists: " + stageDir);
    }
    try {
        Os.mkdir(stageDir.getAbsolutePath(), 0755);
        Os.chmod(stageDir.getAbsolutePath(), 0755);
    } catch (ErrnoException e) {
        // This purposefully throws if directory already exists
        throw new IOException("Failed to prepare session dir: " + stageDir, e);
    }
    if (!SELinux.restorecon(stageDir)) {
        throw new IOException("Failed to restorecon session dir: " + stageDir);
    }
}

Example 17 with ErrnoException

use of android.system.ErrnoException in project platform_frameworks_base by android.

the class PackageInstallerSession method openReadInternal.

private ParcelFileDescriptor openReadInternal(String name) throws IOException {
    assertPreparedAndNotSealed("openRead");
    try {
        if (!FileUtils.isValidExtFilename(name)) {
            throw new IllegalArgumentException("Invalid name: " + name);
        }
        final File target = new File(resolveStageDir(), name);
        final FileDescriptor targetFd = Libcore.os.open(target.getAbsolutePath(), O_RDONLY, 0);
        return new ParcelFileDescriptor(targetFd);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 18 with ErrnoException

use of android.system.ErrnoException in project platform_frameworks_base by android.

the class PackageInstallerSession method createRemoveSplitMarker.

private void createRemoveSplitMarker(String splitName) throws IOException {
    try {
        final String markerName = splitName + REMOVE_SPLIT_MARKER_EXTENSION;
        if (!FileUtils.isValidExtFilename(markerName)) {
            throw new IllegalArgumentException("Invalid marker: " + markerName);
        }
        final File target = new File(resolveStageDir(), markerName);
        target.createNewFile();
        Os.chmod(target.getAbsolutePath(), 0);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 19 with ErrnoException

use of android.system.ErrnoException in project platform_frameworks_base by android.

the class PackageInstallerSession method openWriteInternal.

private ParcelFileDescriptor openWriteInternal(String name, long offsetBytes, long lengthBytes) throws IOException {
    // Quick sanity check of state, and allocate a pipe for ourselves. We
    // then do heavy disk allocation outside the lock, but this open pipe
    // will block any attempted install transitions.
    final FileBridge bridge;
    synchronized (mLock) {
        assertPreparedAndNotSealed("openWrite");
        bridge = new FileBridge();
        mBridges.add(bridge);
    }
    try {
        // Use installer provided name for now; we always rename later
        if (!FileUtils.isValidExtFilename(name)) {
            throw new IllegalArgumentException("Invalid name: " + name);
        }
        final File target;
        final long identity = Binder.clearCallingIdentity();
        try {
            target = new File(resolveStageDir(), name);
        } finally {
            Binder.restoreCallingIdentity(identity);
        }
        // TODO: this should delegate to DCS so the system process avoids
        // holding open FDs into containers.
        final FileDescriptor targetFd = Libcore.os.open(target.getAbsolutePath(), O_CREAT | O_WRONLY, 0644);
        Os.chmod(target.getAbsolutePath(), 0644);
        // cache space to grow, if needed.
        if (lengthBytes > 0) {
            final StructStat stat = Libcore.os.fstat(targetFd);
            final long deltaBytes = lengthBytes - stat.st_size;
            // Only need to free up space when writing to internal stage
            if (stageDir != null && deltaBytes > 0) {
                mPm.freeStorage(params.volumeUuid, deltaBytes);
            }
            Libcore.os.posix_fallocate(targetFd, 0, lengthBytes);
        }
        if (offsetBytes > 0) {
            Libcore.os.lseek(targetFd, offsetBytes, OsConstants.SEEK_SET);
        }
        bridge.setTargetFile(targetFd);
        bridge.start();
        return new ParcelFileDescriptor(bridge.getClientSocket());
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 20 with ErrnoException

use of android.system.ErrnoException in project platform_frameworks_base by android.

the class ApfFilter method maybeStartFilter.

/**
     * Attempt to start listening for RAs and, if RAs are received, generating and installing
     * filters to ignore useless RAs.
     */
@VisibleForTesting
void maybeStartFilter() {
    FileDescriptor socket;
    try {
        mHardwareAddress = mNetworkInterface.getHardwareAddress();
        synchronized (this) {
            // Install basic filters
            installNewProgramLocked();
        }
        socket = Os.socket(AF_PACKET, SOCK_RAW, ETH_P_IPV6);
        PacketSocketAddress addr = new PacketSocketAddress((short) ETH_P_IPV6, mNetworkInterface.getIndex());
        Os.bind(socket, addr);
        NetworkUtils.attachRaFilter(socket, mApfCapabilities.apfPacketFormat);
    } catch (SocketException | ErrnoException e) {
        Log.e(TAG, "Error starting filter", e);
        return;
    }
    mReceiveThread = new ReceiveThread(socket);
    mReceiveThread.start();
}