Loading services/core/jni/com_android_server_pdb_PersistentDataBlockService.cpp +63 −70 Original line number Diff line number Diff line Loading @@ -15,38 +15,32 @@ */ #include <android_runtime/AndroidRuntime.h> #include <nativehelper/JNIHelp.h> #include <errno.h> #include <fcntl.h> #include <inttypes.h> #include <jni.h> #include <nativehelper/JNIHelp.h> #include <nativehelper/ScopedUtfChars.h> #include <utils/misc.h> #include <string.h> #include <sys/ioctl.h> #include <sys/mount.h> #include <utils/Log.h> #include <inttypes.h> #include <fcntl.h> #include <errno.h> #include <string.h> #include <utils/misc.h> namespace android { uint64_t get_block_device_size(int fd) { uint64_t get_block_device_size(int fd) { uint64_t size = 0; int ret; ret = ioctl(fd, BLKGETSIZE64, &size); if (ret) return 0; if (ret) return 0; return size; } int wipe_block_device(int fd) { int wipe_block_device(int fd) { uint64_t range[2]; int ret; uint64_t len = get_block_device_size(fd); Loading @@ -54,8 +48,7 @@ namespace android { range[0] = 0; range[1] = len; if (range[1] == 0) return 0; if (range[1] == 0) return 0; ret = ioctl(fd, BLKSECDISCARD, &range); if (ret < 0) { Loading @@ -70,19 +63,18 @@ namespace android { ALOGE("Wipe via secure discard failed, used non-secure discard instead\n"); return 0; } } return ret; } static jlong com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize(JNIEnv *env, jclass, jstring jpath) { static jlong com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize(JNIEnv *env, jclass, jstring jpath) { ScopedUtfChars path(env, jpath); int fd = open(path.c_str(), O_RDONLY); if (fd < 0) return 0; if (fd < 0) return 0; const uint64_t size = get_block_device_size(fd); Loading @@ -91,12 +83,12 @@ namespace android { return size; } static int com_android_server_pdb_PersistentDataBlockService_wipe(JNIEnv *env, jclass, jstring jpath) { static int com_android_server_pdb_PersistentDataBlockService_wipe(JNIEnv *env, jclass, jstring jpath) { ScopedUtfChars path(env, jpath); int fd = open(path.c_str(), O_WRONLY); if (fd < 0) return 0; if (fd < 0) return 0; const int ret = wipe_block_device(fd); Loading @@ -107,12 +99,13 @@ namespace android { static const JNINativeMethod sMethods[] = { /* name, signature, funcPtr */ {"nativeGetBlockDeviceSize", "(Ljava/lang/String;)J", (void*)com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize}, {"nativeWipe", "(Ljava/lang/String;)I", (void*)com_android_server_pdb_PersistentDataBlockService_wipe}, {"nativeGetBlockDeviceSize", "(Ljava/lang/String;)J", (void *)com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize}, {"nativeWipe", "(Ljava/lang/String;)I", (void *)com_android_server_pdb_PersistentDataBlockService_wipe}, }; int register_android_server_pdb_PersistentDataBlockService(JNIEnv* env) { int register_android_server_pdb_PersistentDataBlockService(JNIEnv *env) { return jniRegisterNativeMethods(env, "com/android/server/pdb/PersistentDataBlockService", sMethods, NELEM(sMethods)); } Loading Loading
services/core/jni/com_android_server_pdb_PersistentDataBlockService.cpp +63 −70 Original line number Diff line number Diff line Loading @@ -15,38 +15,32 @@ */ #include <android_runtime/AndroidRuntime.h> #include <nativehelper/JNIHelp.h> #include <errno.h> #include <fcntl.h> #include <inttypes.h> #include <jni.h> #include <nativehelper/JNIHelp.h> #include <nativehelper/ScopedUtfChars.h> #include <utils/misc.h> #include <string.h> #include <sys/ioctl.h> #include <sys/mount.h> #include <utils/Log.h> #include <inttypes.h> #include <fcntl.h> #include <errno.h> #include <string.h> #include <utils/misc.h> namespace android { uint64_t get_block_device_size(int fd) { uint64_t get_block_device_size(int fd) { uint64_t size = 0; int ret; ret = ioctl(fd, BLKGETSIZE64, &size); if (ret) return 0; if (ret) return 0; return size; } int wipe_block_device(int fd) { int wipe_block_device(int fd) { uint64_t range[2]; int ret; uint64_t len = get_block_device_size(fd); Loading @@ -54,8 +48,7 @@ namespace android { range[0] = 0; range[1] = len; if (range[1] == 0) return 0; if (range[1] == 0) return 0; ret = ioctl(fd, BLKSECDISCARD, &range); if (ret < 0) { Loading @@ -70,19 +63,18 @@ namespace android { ALOGE("Wipe via secure discard failed, used non-secure discard instead\n"); return 0; } } return ret; } static jlong com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize(JNIEnv *env, jclass, jstring jpath) { static jlong com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize(JNIEnv *env, jclass, jstring jpath) { ScopedUtfChars path(env, jpath); int fd = open(path.c_str(), O_RDONLY); if (fd < 0) return 0; if (fd < 0) return 0; const uint64_t size = get_block_device_size(fd); Loading @@ -91,12 +83,12 @@ namespace android { return size; } static int com_android_server_pdb_PersistentDataBlockService_wipe(JNIEnv *env, jclass, jstring jpath) { static int com_android_server_pdb_PersistentDataBlockService_wipe(JNIEnv *env, jclass, jstring jpath) { ScopedUtfChars path(env, jpath); int fd = open(path.c_str(), O_WRONLY); if (fd < 0) return 0; if (fd < 0) return 0; const int ret = wipe_block_device(fd); Loading @@ -107,12 +99,13 @@ namespace android { static const JNINativeMethod sMethods[] = { /* name, signature, funcPtr */ {"nativeGetBlockDeviceSize", "(Ljava/lang/String;)J", (void*)com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize}, {"nativeWipe", "(Ljava/lang/String;)I", (void*)com_android_server_pdb_PersistentDataBlockService_wipe}, {"nativeGetBlockDeviceSize", "(Ljava/lang/String;)J", (void *)com_android_server_pdb_PersistentDataBlockService_getBlockDeviceSize}, {"nativeWipe", "(Ljava/lang/String;)I", (void *)com_android_server_pdb_PersistentDataBlockService_wipe}, }; int register_android_server_pdb_PersistentDataBlockService(JNIEnv* env) { int register_android_server_pdb_PersistentDataBlockService(JNIEnv *env) { return jniRegisterNativeMethods(env, "com/android/server/pdb/PersistentDataBlockService", sMethods, NELEM(sMethods)); } Loading