103 lines
4.2 KiB
Kotlin
103 lines
4.2 KiB
Kotlin
package sushi.hardcore.droidfs.filesystems
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import android.os.Parcel
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import sushi.hardcore.droidfs.explorers.ExplorerElement
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class GocryptfsVolume(private val sessionID: Int): EncryptedVolume() {
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private external fun native_close(sessionID: Int)
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private external fun native_is_closed(sessionID: Int): Boolean
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private external fun native_list_dir(sessionID: Int, dir_path: String): MutableList<ExplorerElement>?
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private external fun native_open_read_mode(sessionID: Int, file_path: String): Int
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private external fun native_open_write_mode(sessionID: Int, file_path: String, mode: Int): Int
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private external fun native_read_file(sessionID: Int, handleID: Int, offset: Long, buff: ByteArray): Int
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private external fun native_write_file(sessionID: Int, handleID: Int, offset: Long, buff: ByteArray, buff_size: Int): Int
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private external fun native_truncate(sessionID: Int, path: String, offset: Long): Boolean
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private external fun native_close_file(sessionID: Int, handleID: Int)
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private external fun native_remove_file(sessionID: Int, file_path: String): Boolean
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private external fun native_mkdir(sessionID: Int, dir_path: String, mode: Int): Boolean
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private external fun native_rmdir(sessionID: Int, dir_path: String): Boolean
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private external fun native_get_attr(sessionID: Int, file_path: String): Stat?
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private external fun native_rename(sessionID: Int, old_path: String, new_path: String): Boolean
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companion object {
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const val KeyLen = 32
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const val ScryptDefaultLogN = 16
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const val CONFIG_FILE_NAME = "gocryptfs.conf"
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external fun createVolume(root_cipher_dir: String, password: ByteArray, plainTextNames: Boolean, xchacha: Int, logN: Int, creator: String, returnedHash: ByteArray?): Boolean
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private external fun nativeInit(root_cipher_dir: String, password: ByteArray?, givenHash: ByteArray?, returnedHash: ByteArray?): Int
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external fun changePassword(root_cipher_dir: String, old_password: CharArray?, givenHash: ByteArray?, new_password: CharArray, returnedHash: ByteArray?): Boolean
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fun init(root_cipher_dir: String, password: ByteArray?, givenHash: ByteArray?, returnedHash: ByteArray?): GocryptfsVolume? {
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val sessionId = nativeInit(root_cipher_dir, password, givenHash, returnedHash)
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return if (sessionId == -1) {
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null
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} else {
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GocryptfsVolume(sessionId)
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}
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}
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init {
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System.loadLibrary("gocryptfs_jni")
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}
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}
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constructor(parcel: Parcel) : this(parcel.readInt())
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override fun openFile(path: String): Long {
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return native_open_write_mode(sessionID, path, 0).toLong()
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}
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override fun read(fileHandle: Long, buffer: ByteArray, offset: Long): Int {
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return native_read_file(sessionID, fileHandle.toInt(), offset, buffer)
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}
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override fun readDir(path: String): MutableList<ExplorerElement>? {
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return native_list_dir(sessionID, path)
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}
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override fun getAttr(path: String): Stat? {
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return native_get_attr(sessionID, path)
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}
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override fun writeToParcel(parcel: Parcel, flags: Int) = with(parcel) {
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writeByte(GOCRYPTFS_VOLUME_TYPE)
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writeInt(sessionID)
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}
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override fun close() {
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native_close(sessionID)
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}
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override fun isClosed(): Boolean {
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return native_is_closed(sessionID)
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}
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override fun mkdir(path: String): Boolean {
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return native_mkdir(sessionID, path, 0)
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}
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override fun rmdir(path: String): Boolean {
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return native_rmdir(sessionID, path)
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}
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override fun closeFile(fileHandle: Long): Boolean {
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native_close_file(sessionID, fileHandle.toInt())
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return true
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}
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override fun write(fileHandle: Long, offset: Long, buffer: ByteArray, size: Int): Int {
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return native_write_file(sessionID, fileHandle.toInt(), offset, buffer, size)
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}
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override fun truncate(path: String, size: Long): Boolean {
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return native_truncate(sessionID, path, size)
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}
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override fun deleteFile(path: String): Boolean {
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return native_remove_file(sessionID, path)
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}
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override fun rename(srcPath: String, dstPath: String): Boolean {
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return native_rename(sessionID, srcPath, dstPath)
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}
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} |