123 lines
4.5 KiB
Kotlin
123 lines
4.5 KiB
Kotlin
package sushi.hardcore.droidfs.filesystems
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import android.os.Parcel
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import sushi.hardcore.droidfs.ConstValues
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import sushi.hardcore.droidfs.explorers.ExplorerElement
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import sushi.hardcore.droidfs.util.PathUtils
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class CryfsVolume(private val fusePtr: Long): EncryptedVolume() {
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companion object {
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init {
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System.loadLibrary("cryfs_jni")
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}
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const val CONFIG_FILE_NAME = "cryfs.config"
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private external fun nativeInit(
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baseDir: String,
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localStateDir: String,
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password: ByteArray,
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createBaseDir: Boolean,
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cipher: String?
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): Long
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private external fun nativeCreate(fusePtr: Long, path: String, mode: Int): Long
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private external fun nativeOpen(fusePtr: Long, path: String, flags: Int): Long
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private external fun nativeRead(fusePtr: Long, fileHandle: Long, buffer: ByteArray, offset: Long): Int
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private external fun nativeWrite(fusePtr: Long, fileHandle: Long, offset: Long, buffer: ByteArray, size: Int): Int
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private external fun nativeTruncate(fusePtr: Long, path: String, size: Long): Boolean
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private external fun nativeDeleteFile(fusePtr: Long, path: String): Boolean
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private external fun nativeCloseFile(fusePtr: Long, fileHandle: Long): Boolean
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private external fun nativeReadDir(fusePtr: Long, path: String): MutableList<ExplorerElement>?
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private external fun nativeMkdir(fusePtr: Long, path: String, mode: Int): Boolean
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private external fun nativeRmdir(fusePtr: Long, path: String): Boolean
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private external fun nativeGetAttr(fusePtr: Long, path: String): Stat?
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private external fun nativeRename(fusePtr: Long, srcPath: String, dstPath: String): Boolean
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private external fun nativeClose(fusePtr: Long)
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private external fun nativeIsClosed(fusePtr: Long): Boolean
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fun getLocalStateDir(filesDir: String): String {
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return PathUtils.pathJoin(filesDir, ConstValues.CRYFS_LOCAL_STATE_DIR)
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}
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private fun init(baseDir: String, localStateDir: String, password: ByteArray, createBaseDir: Boolean, cipher: String?): CryfsVolume? {
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val fusePtr = nativeInit(baseDir, localStateDir, password, createBaseDir, cipher)
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return if (fusePtr == 0L) {
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null
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} else {
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CryfsVolume(fusePtr)
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}
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}
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fun create(baseDir: String, localStateDir: String, password: ByteArray, cipher: String?): Boolean {
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return init(baseDir, localStateDir, password, true, cipher)?.also { it.close() } != null
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}
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fun init(baseDir: String, localStateDir: String, password: ByteArray): CryfsVolume? {
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return init(baseDir, localStateDir, password, false, null)
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}
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}
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constructor(parcel: Parcel) : this(parcel.readLong())
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override fun writeToParcel(parcel: Parcel, flags: Int) = with(parcel) {
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writeByte(CRYFS_VOLUME_TYPE)
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writeLong(fusePtr)
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}
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override fun openFile(path: String): Long {
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val fileHandle = nativeOpen(fusePtr, path, 0)
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return if (fileHandle == -1L) {
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nativeCreate(fusePtr, path, 0)
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} else {
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fileHandle
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}
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}
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override fun read(fileHandle: Long, buffer: ByteArray, offset: Long): Int {
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return nativeRead(fusePtr, fileHandle, buffer, offset)
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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 nativeWrite(fusePtr, fileHandle, offset, buffer, size)
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}
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override fun truncate(path: String, size: Long): Boolean {
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return nativeTruncate(fusePtr, path, size)
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}
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override fun closeFile(fileHandle: Long): Boolean {
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return nativeCloseFile(fusePtr, fileHandle)
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}
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override fun deleteFile(path: String): Boolean {
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return nativeDeleteFile(fusePtr, path)
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}
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override fun readDir(path: String): MutableList<ExplorerElement>? {
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return nativeReadDir(fusePtr, path)
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}
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override fun mkdir(path: String): Boolean {
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return nativeMkdir(fusePtr, path, Stat.S_IFDIR)
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}
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override fun rmdir(path: String): Boolean {
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return nativeRmdir(fusePtr, path)
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}
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override fun getAttr(path: String): Stat? {
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return nativeGetAttr(fusePtr, path)
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}
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override fun rename(srcPath: String, dstPath: String): Boolean {
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return nativeRename(fusePtr, srcPath, dstPath)
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}
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override fun close() {
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return nativeClose(fusePtr)
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}
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override fun isClosed(): Boolean {
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return nativeIsClosed(fusePtr)
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}
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} |