/*
* Class: info_kghost_android_openvpn_OpenVpn_ControlChannel
* Method: send
* Signature: (Ljava/io/FileDescriptor;Ljava/nio/Buffer;Ljava/io/FileDescriptor;)I
*/
JNIEXPORT jint JNICALL Java_info_kghost_android_openvpn_OpenVpn_00024ControlChannel_send__Linfo_kghost_android_openvpn_FileDescriptorHolder_2Ljava_nio_Buffer_2IILinfo_kghost_android_openvpn_FileDescriptorHolder_2
(JNIEnv *env, jclass cls, jobject socket, jobject buffer, jint offset, jint length, jobject fd) {
int s = jniGetFDFromFileDescriptor(env, socket);
if (s < 0) {
throwError(env, "java/lang/IllegalArgumentException", "socket");
return -1;
}
jlong cap = (*env)->GetDirectBufferCapacity(env, buffer);
char* ptr = (*env)->GetDirectBufferAddress(env, buffer);
int sendfd = jniGetFDFromFileDescriptor(env, fd);
int result = write_fd(s, ptr+offset, min(cap-offset, length), sendfd);
if (result < 0) {
switch (errno) {
case EACCES:
case EBADF:
case ENOTCONN:
case ENOTSOCK:
case EISCONN:
case ECONNRESET:
case EDESTADDRREQ:
throwError(env, "java/lang/IllegalArgumentException", "socket");
break;
case EINVAL:
throwError(env, "java/lang/IllegalArgumentException", "inval");
break;
case EFAULT:
throwError(env, "java/lang/IllegalArgumentException", "buffer");
break;
case EMSGSIZE:
throwError(env, "java/lang/IllegalArgumentException", "msg size");
break;
case EINTR:
throwError(env, "java/lang/InterruptedException", "interrupted");
break;
case ENOBUFS:
case ENOMEM:
throwError(env, "java/lang/RuntimeException", "oom");
break;
case EAGAIN:
throwError(env, "java/lang/IllegalArgumentException", "non-block socket");
break;
default:
throwError(env, "java/lang/RuntimeException", "unknown error");
break;
}
}
return result;
}
static void
socket_bind_local (JNIEnv *env, jobject object, jobject fileDescriptor,
jstring name, jint namespaceId)
{
int ret;
int fd;
if (name == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionCheck()) {
return;
}
ScopedUtfChars nameUtf8(env, name);
ret = socket_local_server_bind(fd, nameUtf8.c_str(), namespaceId);
if (ret < 0) {
jniThrowIOException(env, errno);
return;
}
}
/*
* Dump the native heap, writing human-readable output to the specified
* file descriptor.
*/
static void android_os_Debug_dumpNativeHeap(JNIEnv* env, jobject clazz,
jobject fileDescriptor)
{
if (fileDescriptor == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
int origFd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (origFd < 0) {
jniThrowRuntimeException(env, "Invalid file descriptor");
return;
}
/* dup() the descriptor so we don't close the original with fclose() */
int fd = dup(origFd);
if (fd < 0) {
ALOGW("dup(%d) failed: %s\n", origFd, strerror(errno));
jniThrowRuntimeException(env, "dup() failed");
return;
}
FILE* fp = fdopen(fd, "w");
if (fp == NULL) {
ALOGW("fdopen(%d) failed: %s\n", fd, strerror(errno));
close(fd);
jniThrowRuntimeException(env, "fdopen() failed");
return;
}
ALOGD("Native heap dump starting...\n");
dumpNativeHeap(fp);
ALOGD("Native heap dump complete.\n");
fclose(fp);
}
/* private native void connectLocal(FileDescriptor fd,
* String name, int namespace) throws IOException
*/
static void
socket_connect_local(JNIEnv *env, jobject object,
jobject fileDescriptor, jstring name, jint namespaceId)
{
int ret;
int fd;
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionCheck()) {
return;
}
ScopedUtfChars nameUtf8(env, name);
ret = socket_local_client_connect(
fd,
nameUtf8.c_str(),
namespaceId,
SOCK_STREAM);
if (ret < 0) {
jniThrowIOException(env, errno);
return;
}
}
/*
* Function: getPeerCon
* Purpose: retrieves security context of peer socket
* Parameters:
* fileDescriptor: peer socket file as a FileDescriptor object
* Returns: jstring representing the security_context of socket or NULL if error
* Exceptions: NullPointerException if fileDescriptor object is NULL
*/
static jstring getPeerCon(JNIEnv *env, jobject, jobject fileDescriptor) {
if (isSELinuxDisabled) {
return NULL;
}
if (fileDescriptor == NULL) {
jniThrowNullPointerException(env,
"Trying to check security context of a null peer socket.");
return NULL;
}
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionOccurred() != NULL) {
ALOGE("getPeerCon => getFD for %p failed", fileDescriptor);
return NULL;
}
security_context_t tmp = NULL;
int ret = getpeercon(fd, &tmp);
Unique_SecurityContext context(tmp);
ScopedLocalRef<jstring> contextStr(env, NULL);
if (ret != -1) {
contextStr.reset(env->NewStringUTF(context.get()));
}
ALOGV("getPeerCon(%d) => %s", fd, context.get());
return contextStr.release();
}
static void com_android_internal_os_ZygoteInit_setCloseOnExec (JNIEnv *env,
jobject clazz, jobject descriptor, jboolean flag)
{
int fd;
int err;
int fdFlags;
fd = jniGetFDFromFileDescriptor(env, descriptor);
if (env->ExceptionOccurred() != NULL) {
return;
}
fdFlags = fcntl(fd, F_GETFD);
if (fdFlags < 0) {
jniThrowIOException(env, errno);
return;
}
if (flag) {
fdFlags |= FD_CLOEXEC;
} else {
fdFlags &= ~FD_CLOEXEC;
}
err = fcntl(fd, F_SETFD, fdFlags);
if (err < 0) {
jniThrowIOException(env, errno);
return;
}
}
static jint socket_read (JNIEnv *env, jobject object, jobject fileDescriptor)
{
int fd;
int err;
if (fileDescriptor == NULL) {
jniThrowNullPointerException(env, NULL);
return (jint)-1;
}
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionCheck()) {
return (jint)0;
}
unsigned char buf;
err = socket_read_all(env, object, fd, &buf, 1);
if (err < 0) {
jniThrowIOException(env, errno);
return (jint)0;
}
if (err == 0) {
// end of file
return (jint)-1;
}
return (jint)buf;
}
TILE_GET_INFO_MEMBER(aerofgt_state::get_bg2_tile_info)
{
UINT16 code = m_bg2videoram[tile_index];
int bank = 4 + ((code & 0x1800) >> 11);
SET_TILE_INFO_MEMBER(m_gfxdecode,
1,
(code & 0x07ff) + (m_gfxbank[bank] << 11),
(code & 0xe000) >> 13,
0);
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
void aerofgt_state::aerofgt_register_state_globals( )
{
save_item(NAME(m_gfxbank));
save_item(NAME(m_bank));
save_item(NAME(m_bg1scrollx));
save_item(NAME(m_bg1scrolly));
save_item(NAME(m_bg2scrollx));
save_item(NAME(m_bg2scrolly));
save_item(NAME(m_charpalettebank));
save_item(NAME(m_spritepalettebank));
}
VIDEO_START_MEMBER(aerofgt_state,pspikes)
{
m_bg1_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(aerofgt_state::get_pspikes_tile_info),this),TILEMAP_SCAN_ROWS,8,8,64,32);
/* no bg2 in this game */
/* private native void connectLocal(FileDescriptor fd,
* String name, int namespace) throws IOException
*/
static void
socket_connect_local(JNIEnv *env, jobject object,
jobject fileDescriptor, jstring name, jint namespaceId)
{
int ret;
const char *nameUtf8;
int fd;
nameUtf8 = env->GetStringUTFChars(name, NULL);
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionOccurred() != NULL) {
return;
}
ret = socket_local_client_connect(
fd,
nameUtf8,
namespaceId,
SOCK_STREAM);
env->ReleaseStringUTFChars(name, nameUtf8);
if (ret < 0) {
jniThrowIOException(env, errno);
return;
}
}
static void socket_close (JNIEnv *env, jobject object, jobject fileDescriptor)
{
int fd;
int err;
if (fileDescriptor == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionOccurred() != NULL) {
return;
}
do {
err = close(fd);
} while (err < 0 && errno == EINTR);
if (err < 0) {
jniThrowIOException(env, errno);
return;
}
}
extern "C" jint Java_java_util_zip_Inflater_setFileInputImpl(JNIEnv* env, jobject, jobject javaFileDescriptor, jlong off, jint len, jlong handle) {
NativeZipStream* stream = toNativeZipStream(handle);
// We reuse the existing native buffer if it's large enough.
// TODO: benchmark.
if (stream->inCap < len) {
stream->setInput(env, NULL, 0, len);
} else {
stream->stream.next_in = reinterpret_cast<Bytef*>(&stream->input[0]);
stream->stream.avail_in = len;
}
// As an Android-specific optimization, we read directly onto the native heap.
// The original code used Java to read onto the Java heap and then called setInput(byte[]).
// TODO: benchmark.
int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
int rc = TEMP_FAILURE_RETRY(lseek(fd, off, SEEK_SET));
if (rc == -1) {
jniThrowIOException(env, errno);
return 0;
}
jint totalByteCount = 0;
Bytef* dst = reinterpret_cast<Bytef*>(&stream->input[0]);
ssize_t byteCount;
while ((byteCount = TEMP_FAILURE_RETRY(read(fd, dst, len))) > 0) {
dst += byteCount;
len -= byteCount;
totalByteCount += byteCount;
}
if (byteCount == -1) {
jniThrowIOException(env, errno);
return 0;
}
return totalByteCount;
}
static void
socket_bind_local (JNIEnv *env, jobject object, jobject fileDescriptor,
jstring name, jint namespaceId)
{
int ret;
int fd;
const char *nameUtf8;
if (name == NULL) {
jniThrowNullPointerException(env, NULL);
}
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionOccurred() != NULL) {
return;
}
nameUtf8 = env->GetStringUTFChars(name, NULL);
ret = socket_local_server_bind(fd, nameUtf8, namespaceId);
env->ReleaseStringUTFChars(name, nameUtf8);
if (ret < 0) {
jniThrowIOException(env, errno);
return;
}
}
static jint socket_pending (JNIEnv *env, jobject object,
jobject fileDescriptor)
{
int fd;
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionCheck()) {
return (jint)-1;
}
int pending;
int ret = ioctl(fd, TIOCOUTQ, &pending);
// If this were a non-socket fd, there would be other cases to worry
// about...
//ALOGD("socket_pending, ioctl ret:%d, pending:%d", ret, pending);
if (ret < 0) {
jniThrowIOException(env, errno);
return (jint) 0;
}
return (jint)pending;
}
static void android_os_MemoryFile_pin(JNIEnv* env, jobject clazz, jobject fileDescriptor, jboolean pin)
{
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
int result = (pin ? ashmem_pin_region(fd, 0, 0) : ashmem_unpin_region(fd, 0, 0));
if (result < 0) {
jniThrowException(env, "java/io/IOException", NULL);
}
}
static void android_os_MemoryFile_close(JNIEnv* env, jobject clazz, jobject fileDescriptor)
{
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (fd >= 0) {
jniSetFileDescriptorOfFD(env, fileDescriptor, -1);
close(fd);
}
}
static jint android_os_MemoryFile_mmap(JNIEnv* env, jobject clazz, jobject fileDescriptor,
jint length, jint prot)
{
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
jint result = (jint)mmap(NULL, length, prot, MAP_SHARED, fd, 0);
if (!result)
jniThrowException(env, "java/io/IOException", "mmap failed");
return result;
}
static int
skipChunk_native(JNIEnv* env, jobject clazz, jobject fdObj, jint bytesToSkip)
{
int fd = jniGetFDFromFileDescriptor(env, fdObj);
lseek(fd, bytesToSkip, SEEK_CUR);
return 0;
}
static jlong
ctor_native(JNIEnv* env, jobject clazz, jobject fileDescriptor)
{
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (fd == -1) {
return (jlong)NULL;
}
return (jlong)new BackupDataWriter(fd);
}
static int
ctor_native(JNIEnv* env, jobject clazz, jobject fileDescriptor)
{
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (fd == -1) {
return NULL;
}
return (int)new BackupDataReader(fd);
}
static void android_os_Parcel_writeFileDescriptor(JNIEnv* env, jclass clazz, jlong nativePtr, jobject object)
{
Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr);
if (parcel != NULL) {
const status_t err =
parcel->writeDupFileDescriptor(jniGetFDFromFileDescriptor(env, object));
if (err != NO_ERROR) {
signalExceptionForError(env, clazz, err);
}
}
}
static void android_os_Parcel_clearFileDescriptor(JNIEnv* env, jclass clazz, jobject object)
{
if (object == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
int fd = jniGetFDFromFileDescriptor(env, object);
if (fd >= 0) {
jniSetFileDescriptorOfFD(env, object, -1);
}
}
static jint
writeSnapshot_native(JNIEnv* env, jobject clazz, jlong ptr, jobject fileDescriptor)
{
int err;
RestoreHelperBase* restore = (RestoreHelperBase*)ptr;
int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
err = restore->WriteSnapshot(fd);
return (jint) err;
}
static jint
performBackup_native(JNIEnv* env, jobject clazz, jobject oldState, jlong data,
jobject newState, jobjectArray files, jobjectArray keys)
{
int err;
// all parameters have already been checked against null
int oldStateFD = oldState != NULL ? jniGetFDFromFileDescriptor(env, oldState) : -1;
int newStateFD = jniGetFDFromFileDescriptor(env, newState);
BackupDataWriter* dataStream = (BackupDataWriter*)data;
const int fileCount = env->GetArrayLength(files);
char const** filesUTF = (char const**)malloc(sizeof(char*)*fileCount);
for (int i=0; i<fileCount; i++) {
filesUTF[i] = env->GetStringUTFChars((jstring)env->GetObjectArrayElement(files, i), NULL);
}
const int keyCount = env->GetArrayLength(keys);
char const** keysUTF = (char const**)malloc(sizeof(char*)*keyCount);
for (int i=0; i<keyCount; i++) {
keysUTF[i] = env->GetStringUTFChars((jstring)env->GetObjectArrayElement(keys, i), NULL);
}
err = back_up_files(oldStateFD, dataStream, newStateFD, filesUTF, keysUTF, fileCount);
for (int i=0; i<fileCount; i++) {
env->ReleaseStringUTFChars((jstring)env->GetObjectArrayElement(files, i), filesUTF[i]);
}
free(filesUTF);
for (int i=0; i<keyCount; i++) {
env->ReleaseStringUTFChars((jstring)env->GetObjectArrayElement(keys, i), keysUTF[i]);
}
free(keysUTF);
return (jint) err;
}
/*
* Class: info_kghost_android_openvpn_OpenVpn_ControlChannel
* Method: recv
* Signature: (Linfo/kghost/android/openvpn/FileDescriptorHolder;Ljava/nio/Buffer;IILinfo/kghost/android/openvpn/FileDescriptorHolder;)I
*/
JNIEXPORT jint JNICALL Java_info_kghost_android_openvpn_OpenVpn_00024ControlChannel_recv
(JNIEnv *env, jclass cls, jobject socket, jobject buffer, jint offset, jint length, jobject fd) {
int s = jniGetFDFromFileDescriptor(env, socket);
if (s < 0) {
throwError(env, "java/lang/IllegalArgumentException", "socket");
return -1;
}
jlong cap = (*env)->GetDirectBufferCapacity(env, buffer);
char* ptr = (*env)->GetDirectBufferAddress(env, buffer);
int recvfd = -1;
int result = read_fd(s, ptr+offset, min(cap-offset, length), &recvfd);
if (result < 0) {
switch (errno) {
case EBADF:
case ENOTSOCK:
case ENOTCONN:
case ECONNREFUSED:
throwError(env, "java/lang/IllegalArgumentException", "socket");
break;
case EINVAL:
throwError(env, "java/lang/IllegalArgumentException", "inval");
break;
case EFAULT:
throwError(env, "java/lang/IllegalArgumentException", "buffer");
break;
case EINTR:
throwError(env, "java/lang/InterruptedException", "interrupted");
break;
case ENOMEM:
throwError(env, "java/lang/RuntimeException", "oom");
break;
case EAGAIN:
throwError(env, "java/lang/IllegalArgumentException", "non-block socket");
break;
default:
throwError(env, "java/lang/RuntimeException", "unknown error");
break;
}
return result;
}
if (recvfd >= 0) {
jniSetFileDescriptorOfFD(env, fd, recvfd);
}
return result;
}
static void
android_server_UsbMidiDevice_close(JNIEnv *env, jobject thiz, jobjectArray fds)
{
// write to mPipeFD to unblock input thread
jint pipeFD = env->GetIntField(thiz, sPipeFDField);
write(pipeFD, &pipeFD, sizeof(pipeFD));
close(pipeFD);
env->SetIntField(thiz, sPipeFDField, -1);
int count = env->GetArrayLength(fds);
for (int i = 0; i < count; i++) {
jobject fd = env->GetObjectArrayElement(fds, i);
close(jniGetFDFromFileDescriptor(env, fd));
}
}
static void com_android_internal_os_ZygoteInit_reopenStdio(JNIEnv* env,
jobject clazz, jobject in, jobject out, jobject errfd)
{
int fd;
int err;
fd = jniGetFDFromFileDescriptor(env, in);
if (env->ExceptionOccurred() != NULL) {
return;
}
do {
err = dup2(fd, STDIN_FILENO);
} while (err < 0 && errno == EINTR);
fd = jniGetFDFromFileDescriptor(env, out);
if (env->ExceptionOccurred() != NULL) {
return;
}
do {
err = dup2(fd, STDOUT_FILENO);
} while (err < 0 && errno == EINTR);
fd = jniGetFDFromFileDescriptor(env, errfd);
if (env->ExceptionOccurred() != NULL) {
return;
}
do {
err = dup2(fd, STDERR_FILENO);
} while (err < 0 && errno == EINTR);
}
static jint QTagUid_untagSocketFd(JNIEnv* env, jclass,
jobject fileDescriptor) {
int userFd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionCheck()) {
ALOGE("Can't get FileDescriptor num");
return (jint)-1;
}
int res = qtaguid_untagSocket(userFd);
if (res < 0) {
return (jint)-errno;
}
return (jint)res;
}
static jint socket_available (JNIEnv *env, jobject object,
jobject fileDescriptor)
{
int fd;
fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (env->ExceptionOccurred() != NULL) {
return (jint)-1;
}
#if 1
int avail;
int ret = ioctl(fd, FIONREAD, &avail);
// If this were a non-socket fd, there would be other cases to worry
// about...
if (ret < 0) {
jniThrowIOException(env, errno);
return (jint) 0;
}
return (jint)avail;
#else
// there appears to be a bionic bug that prevents this version from working.
ssize_t ret;
struct msghdr msg;
memset(&msg, 0, sizeof(msg));
do {
ret = recvmsg(fd, &msg, MSG_PEEK | MSG_DONTWAIT | MSG_NOSIGNAL);
} while (ret < 0 && errno == EINTR);
// MSG_PEEK returns 0 on EOF and EWOULDBLOCK on none available
if (ret < 0 && errno == EWOULDBLOCK) {
return 0;
} if (ret < 0) {
jniThrowIOException(env, errno);
return -1;
}
return (jint)ret;
#endif
}
/*
* Note: fdSet has to be non-const because although on Linux FD_ISSET() is sane
* and takes a const fd_set*, it takes fd_set* on Mac OS. POSIX is not on our
* side here:
* http://www.opengroup.org/onlinepubs/000095399/functions/select.html
*/
static bool translateFdSet(JNIEnv* env, jobjectArray fdArray, jint count, fd_set& fdSet, jint* flagArray, size_t offset, jint op) {
for (int i = 0; i < count; ++i) {
jobject fileDescriptor = env->GetObjectArrayElement(fdArray, i);
if (fileDescriptor == NULL) {
return false;
}
const int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (isValidFd(fd) && FD_ISSET(fd, &fdSet)) {
flagArray[i + offset] = op;
} else {
flagArray[i + offset] = SOCKET_OP_NONE;
}
}
return true;
}
//static void FileDescriptor_syncImpl(JNIEnv* env, jobject obj) {
JNIEXPORT void JNICALL
Java_java_io_FileDescriptor_syncImpl(JNIEnv* env, jobject obj) {
int fd = jniGetFDFromFileDescriptor(env, obj);
int rc = xi_file_sync(fd);
if (rc < 0) {
/*
* If fd is a socket, then fsync(fd) is defined to fail with
* errno EINVAL. This isn't actually cause for concern.
* TODO: Look into not bothering to call fsync() at all if
* we know we are dealing with a socket.
*/
log_error(XDLOG, "[java_io_FileDescriptor_syncImpl] SyncFailed!!\n");
jniThrowException(env, "java/io/SyncFailedException",
"file sync error!!");
}
}
