1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "Parcel" 18 //#define LOG_NDEBUG 0 19 20 #include "android_os_Parcel.h" 21 #include "android_util_Binder.h" 22 23 #include "JNIHelp.h" 24 25 #include <fcntl.h> 26 #include <stdio.h> 27 #include <sys/stat.h> 28 #include <sys/types.h> 29 #include <unistd.h> 30 31 #include <utils/Atomic.h> 32 #include <binder/IInterface.h> 33 #include <binder/IPCThreadState.h> 34 #include <utils/Log.h> 35 #include <utils/SystemClock.h> 36 #include <utils/List.h> 37 #include <utils/KeyedVector.h> 38 #include <binder/Parcel.h> 39 #include <binder/ProcessState.h> 40 #include <binder/IServiceManager.h> 41 #include <utils/threads.h> 42 #include <utils/String8.h> 43 44 #include <ScopedUtfChars.h> 45 #include <ScopedLocalRef.h> 46 47 #include <android_runtime/AndroidRuntime.h> 48 49 #include "core_jni_helpers.h" 50 51 //#undef ALOGV 52 //#define ALOGV(...) fprintf(stderr, __VA_ARGS__) 53 54 #define DEBUG_DEATH 0 55 #if DEBUG_DEATH 56 #define LOGDEATH ALOGD 57 #else 58 #define LOGDEATH ALOGV 59 #endif 60 61 namespace android { 62 63 static struct parcel_offsets_t 64 { 65 jclass clazz; 66 jfieldID mNativePtr; 67 jmethodID obtain; 68 jmethodID recycle; 69 } gParcelOffsets; 70 71 Parcel* parcelForJavaObject(JNIEnv* env, jobject obj) 72 { 73 if (obj) { 74 Parcel* p = (Parcel*)env->GetLongField(obj, gParcelOffsets.mNativePtr); 75 if (p != NULL) { 76 return p; 77 } 78 jniThrowException(env, "java/lang/IllegalStateException", "Parcel has been finalized!"); 79 } 80 return NULL; 81 } 82 83 jobject createJavaParcelObject(JNIEnv* env) 84 { 85 return env->CallStaticObjectMethod(gParcelOffsets.clazz, gParcelOffsets.obtain); 86 } 87 88 void recycleJavaParcelObject(JNIEnv* env, jobject parcelObj) 89 { 90 env->CallVoidMethod(parcelObj, gParcelOffsets.recycle); 91 } 92 93 static jint android_os_Parcel_dataSize(JNIEnv* env, jclass clazz, jlong nativePtr) 94 { 95 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 96 return parcel ? parcel->dataSize() : 0; 97 } 98 99 static jint android_os_Parcel_dataAvail(JNIEnv* env, jclass clazz, jlong nativePtr) 100 { 101 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 102 return parcel ? parcel->dataAvail() : 0; 103 } 104 105 static jint android_os_Parcel_dataPosition(JNIEnv* env, jclass clazz, jlong nativePtr) 106 { 107 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 108 return parcel ? parcel->dataPosition() : 0; 109 } 110 111 static jint android_os_Parcel_dataCapacity(JNIEnv* env, jclass clazz, jlong nativePtr) 112 { 113 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 114 return parcel ? parcel->dataCapacity() : 0; 115 } 116 117 static jlong android_os_Parcel_setDataSize(JNIEnv* env, jclass clazz, jlong nativePtr, jint size) 118 { 119 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 120 if (parcel != NULL) { 121 const status_t err = parcel->setDataSize(size); 122 if (err != NO_ERROR) { 123 signalExceptionForError(env, clazz, err); 124 } 125 return parcel->getOpenAshmemSize(); 126 } 127 return 0; 128 } 129 130 static void android_os_Parcel_setDataPosition(JNIEnv* env, jclass clazz, jlong nativePtr, jint pos) 131 { 132 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 133 if (parcel != NULL) { 134 parcel->setDataPosition(pos); 135 } 136 } 137 138 static void android_os_Parcel_setDataCapacity(JNIEnv* env, jclass clazz, jlong nativePtr, jint size) 139 { 140 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 141 if (parcel != NULL) { 142 const status_t err = parcel->setDataCapacity(size); 143 if (err != NO_ERROR) { 144 signalExceptionForError(env, clazz, err); 145 } 146 } 147 } 148 149 static jboolean android_os_Parcel_pushAllowFds(JNIEnv* env, jclass clazz, jlong nativePtr, jboolean allowFds) 150 { 151 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 152 jboolean ret = JNI_TRUE; 153 if (parcel != NULL) { 154 ret = (jboolean)parcel->pushAllowFds(allowFds); 155 } 156 return ret; 157 } 158 159 static void android_os_Parcel_restoreAllowFds(JNIEnv* env, jclass clazz, jlong nativePtr, jboolean lastValue) 160 { 161 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 162 if (parcel != NULL) { 163 parcel->restoreAllowFds((bool)lastValue); 164 } 165 } 166 167 static void android_os_Parcel_writeNative(JNIEnv* env, jclass clazz, jlong nativePtr, jobject data, 168 jint offset, jint length) 169 { 170 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 171 if (parcel == NULL) { 172 return; 173 } 174 175 const status_t err = parcel->writeInt32(length); 176 if (err != NO_ERROR) { 177 signalExceptionForError(env, clazz, err); 178 return; 179 } 180 181 void* dest = parcel->writeInplace(length); 182 if (dest == NULL) { 183 signalExceptionForError(env, clazz, NO_MEMORY); 184 return; 185 } 186 187 jbyte* ar = (jbyte*)env->GetPrimitiveArrayCritical((jarray)data, 0); 188 if (ar) { 189 memcpy(dest, ar + offset, length); 190 env->ReleasePrimitiveArrayCritical((jarray)data, ar, 0); 191 } 192 } 193 194 static void android_os_Parcel_writeBlob(JNIEnv* env, jclass clazz, jlong nativePtr, jobject data, 195 jint offset, jint length) { 196 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 197 if (parcel == NULL) { 198 return; 199 } 200 201 if (data == NULL) { 202 const status_t err = parcel->writeInt32(-1); 203 if (err != NO_ERROR) { 204 signalExceptionForError(env, clazz, err); 205 } 206 return; 207 } 208 209 const status_t err = parcel->writeInt32(length); 210 if (err != NO_ERROR) { 211 signalExceptionForError(env, clazz, err); 212 return; 213 } 214 215 android::Parcel::WritableBlob blob; 216 android::status_t err2 = parcel->writeBlob(length, false, &blob); 217 if (err2 != NO_ERROR) { 218 signalExceptionForError(env, clazz, err2); 219 return; 220 } 221 222 jbyte* ar = (jbyte*)env->GetPrimitiveArrayCritical((jarray)data, 0); 223 if (ar == NULL) { 224 memset(blob.data(), 0, length); 225 } else { 226 memcpy(blob.data(), ar + offset, length); 227 env->ReleasePrimitiveArrayCritical((jarray)data, ar, 0); 228 } 229 230 blob.release(); 231 } 232 233 static void android_os_Parcel_writeInt(JNIEnv* env, jclass clazz, jlong nativePtr, jint val) { 234 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 235 if (parcel != NULL) { 236 const status_t err = parcel->writeInt32(val); 237 if (err != NO_ERROR) { 238 signalExceptionForError(env, clazz, err); 239 } 240 } 241 } 242 243 static void android_os_Parcel_writeLong(JNIEnv* env, jclass clazz, jlong nativePtr, jlong val) 244 { 245 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 246 if (parcel != NULL) { 247 const status_t err = parcel->writeInt64(val); 248 if (err != NO_ERROR) { 249 signalExceptionForError(env, clazz, err); 250 } 251 } 252 } 253 254 static void android_os_Parcel_writeFloat(JNIEnv* env, jclass clazz, jlong nativePtr, jfloat val) 255 { 256 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 257 if (parcel != NULL) { 258 const status_t err = parcel->writeFloat(val); 259 if (err != NO_ERROR) { 260 signalExceptionForError(env, clazz, err); 261 } 262 } 263 } 264 265 static void android_os_Parcel_writeDouble(JNIEnv* env, jclass clazz, jlong nativePtr, jdouble val) 266 { 267 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 268 if (parcel != NULL) { 269 const status_t err = parcel->writeDouble(val); 270 if (err != NO_ERROR) { 271 signalExceptionForError(env, clazz, err); 272 } 273 } 274 } 275 276 static void android_os_Parcel_writeString(JNIEnv* env, jclass clazz, jlong nativePtr, jstring val) 277 { 278 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 279 if (parcel != NULL) { 280 status_t err = NO_MEMORY; 281 if (val) { 282 const jchar* str = env->GetStringCritical(val, 0); 283 if (str) { 284 err = parcel->writeString16( 285 reinterpret_cast<const char16_t*>(str), 286 env->GetStringLength(val)); 287 env->ReleaseStringCritical(val, str); 288 } 289 } else { 290 err = parcel->writeString16(NULL, 0); 291 } 292 if (err != NO_ERROR) { 293 signalExceptionForError(env, clazz, err); 294 } 295 } 296 } 297 298 static void android_os_Parcel_writeStrongBinder(JNIEnv* env, jclass clazz, jlong nativePtr, jobject object) 299 { 300 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 301 if (parcel != NULL) { 302 const status_t err = parcel->writeStrongBinder(ibinderForJavaObject(env, object)); 303 if (err != NO_ERROR) { 304 signalExceptionForError(env, clazz, err); 305 } 306 } 307 } 308 309 static jlong android_os_Parcel_writeFileDescriptor(JNIEnv* env, jclass clazz, jlong nativePtr, jobject object) 310 { 311 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 312 if (parcel != NULL) { 313 const status_t err = 314 parcel->writeDupFileDescriptor(jniGetFDFromFileDescriptor(env, object)); 315 if (err != NO_ERROR) { 316 signalExceptionForError(env, clazz, err); 317 } 318 return parcel->getOpenAshmemSize(); 319 } 320 return 0; 321 } 322 323 static jbyteArray android_os_Parcel_createByteArray(JNIEnv* env, jclass clazz, jlong nativePtr) 324 { 325 jbyteArray ret = NULL; 326 327 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 328 if (parcel != NULL) { 329 int32_t len = parcel->readInt32(); 330 331 // sanity check the stored length against the true data size 332 if (len >= 0 && len <= (int32_t)parcel->dataAvail()) { 333 ret = env->NewByteArray(len); 334 335 if (ret != NULL) { 336 jbyte* a2 = (jbyte*)env->GetPrimitiveArrayCritical(ret, 0); 337 if (a2) { 338 const void* data = parcel->readInplace(len); 339 memcpy(a2, data, len); 340 env->ReleasePrimitiveArrayCritical(ret, a2, 0); 341 } 342 } 343 } 344 } 345 346 return ret; 347 } 348 349 static jbyteArray android_os_Parcel_readBlob(JNIEnv* env, jclass clazz, jlong nativePtr) 350 { 351 jbyteArray ret = NULL; 352 353 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 354 if (parcel != NULL) { 355 int32_t len = parcel->readInt32(); 356 if (len >= 0) { 357 android::Parcel::ReadableBlob blob; 358 android::status_t err = parcel->readBlob(len, &blob); 359 if (err != NO_ERROR) { 360 signalExceptionForError(env, clazz, err); 361 return NULL; 362 } 363 364 ret = env->NewByteArray(len); 365 if (ret != NULL) { 366 jbyte* a2 = (jbyte*)env->GetPrimitiveArrayCritical(ret, 0); 367 if (a2) { 368 memcpy(a2, blob.data(), len); 369 env->ReleasePrimitiveArrayCritical(ret, a2, 0); 370 } 371 } 372 blob.release(); 373 } 374 } 375 376 return ret; 377 } 378 379 static jint android_os_Parcel_readInt(JNIEnv* env, jclass clazz, jlong nativePtr) 380 { 381 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 382 if (parcel != NULL) { 383 return parcel->readInt32(); 384 } 385 return 0; 386 } 387 388 static jlong android_os_Parcel_readLong(JNIEnv* env, jclass clazz, jlong nativePtr) 389 { 390 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 391 if (parcel != NULL) { 392 return parcel->readInt64(); 393 } 394 return 0; 395 } 396 397 static jfloat android_os_Parcel_readFloat(JNIEnv* env, jclass clazz, jlong nativePtr) 398 { 399 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 400 if (parcel != NULL) { 401 return parcel->readFloat(); 402 } 403 return 0; 404 } 405 406 static jdouble android_os_Parcel_readDouble(JNIEnv* env, jclass clazz, jlong nativePtr) 407 { 408 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 409 if (parcel != NULL) { 410 return parcel->readDouble(); 411 } 412 return 0; 413 } 414 415 static jstring android_os_Parcel_readString(JNIEnv* env, jclass clazz, jlong nativePtr) 416 { 417 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 418 if (parcel != NULL) { 419 size_t len; 420 const char16_t* str = parcel->readString16Inplace(&len); 421 if (str) { 422 return env->NewString(reinterpret_cast<const jchar*>(str), len); 423 } 424 return NULL; 425 } 426 return NULL; 427 } 428 429 static jobject android_os_Parcel_readStrongBinder(JNIEnv* env, jclass clazz, jlong nativePtr) 430 { 431 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 432 if (parcel != NULL) { 433 return javaObjectForIBinder(env, parcel->readStrongBinder()); 434 } 435 return NULL; 436 } 437 438 static jobject android_os_Parcel_readFileDescriptor(JNIEnv* env, jclass clazz, jlong nativePtr) 439 { 440 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 441 if (parcel != NULL) { 442 int fd = parcel->readFileDescriptor(); 443 if (fd < 0) return NULL; 444 fd = dup(fd); 445 if (fd < 0) return NULL; 446 return jniCreateFileDescriptor(env, fd); 447 } 448 return NULL; 449 } 450 451 static jobject android_os_Parcel_openFileDescriptor(JNIEnv* env, jclass clazz, 452 jstring name, jint mode) 453 { 454 if (name == NULL) { 455 jniThrowNullPointerException(env, NULL); 456 return NULL; 457 } 458 ScopedUtfChars name8(env, name); 459 if (name8.c_str() == NULL) { 460 return NULL; 461 } 462 463 int flags=0; 464 switch (mode&0x30000000) { 465 case 0: 466 case 0x10000000: 467 flags = O_RDONLY; 468 break; 469 case 0x20000000: 470 flags = O_WRONLY; 471 break; 472 case 0x30000000: 473 flags = O_RDWR; 474 break; 475 } 476 477 if (mode&0x08000000) flags |= O_CREAT; 478 if (mode&0x04000000) flags |= O_TRUNC; 479 if (mode&0x02000000) flags |= O_APPEND; 480 481 int realMode = S_IRWXU|S_IRWXG; 482 if (mode&0x00000001) realMode |= S_IROTH; 483 if (mode&0x00000002) realMode |= S_IWOTH; 484 485 int fd = open(name8.c_str(), flags, realMode); 486 if (fd < 0) { 487 jniThrowException(env, "java/io/FileNotFoundException", strerror(errno)); 488 return NULL; 489 } 490 jobject object = jniCreateFileDescriptor(env, fd); 491 if (object == NULL) { 492 close(fd); 493 } 494 return object; 495 } 496 497 static jobject android_os_Parcel_dupFileDescriptor(JNIEnv* env, jclass clazz, jobject orig) 498 { 499 if (orig == NULL) { 500 jniThrowNullPointerException(env, NULL); 501 return NULL; 502 } 503 int origfd = jniGetFDFromFileDescriptor(env, orig); 504 if (origfd < 0) { 505 jniThrowException(env, "java/lang/IllegalArgumentException", "bad FileDescriptor"); 506 return NULL; 507 } 508 509 int fd = dup(origfd); 510 if (fd < 0) { 511 jniThrowIOException(env, errno); 512 return NULL; 513 } 514 jobject object = jniCreateFileDescriptor(env, fd); 515 if (object == NULL) { 516 close(fd); 517 } 518 return object; 519 } 520 521 static void android_os_Parcel_closeFileDescriptor(JNIEnv* env, jclass clazz, jobject object) 522 { 523 if (object == NULL) { 524 jniThrowNullPointerException(env, NULL); 525 return; 526 } 527 int fd = jniGetFDFromFileDescriptor(env, object); 528 if (fd >= 0) { 529 jniSetFileDescriptorOfFD(env, object, -1); 530 //ALOGI("Closing ParcelFileDescriptor %d\n", fd); 531 close(fd); 532 } 533 } 534 535 static void android_os_Parcel_clearFileDescriptor(JNIEnv* env, jclass clazz, jobject object) 536 { 537 if (object == NULL) { 538 jniThrowNullPointerException(env, NULL); 539 return; 540 } 541 int fd = jniGetFDFromFileDescriptor(env, object); 542 if (fd >= 0) { 543 jniSetFileDescriptorOfFD(env, object, -1); 544 } 545 } 546 547 static jlong android_os_Parcel_create(JNIEnv* env, jclass clazz) 548 { 549 Parcel* parcel = new Parcel(); 550 return reinterpret_cast<jlong>(parcel); 551 } 552 553 static jlong android_os_Parcel_freeBuffer(JNIEnv* env, jclass clazz, jlong nativePtr) 554 { 555 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 556 if (parcel != NULL) { 557 parcel->freeData(); 558 return parcel->getOpenAshmemSize(); 559 } 560 return 0; 561 } 562 563 static void android_os_Parcel_destroy(JNIEnv* env, jclass clazz, jlong nativePtr) 564 { 565 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 566 delete parcel; 567 } 568 569 static jbyteArray android_os_Parcel_marshall(JNIEnv* env, jclass clazz, jlong nativePtr) 570 { 571 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 572 if (parcel == NULL) { 573 return NULL; 574 } 575 576 // do not marshall if there are binder objects in the parcel 577 if (parcel->objectsCount()) 578 { 579 jniThrowException(env, "java/lang/RuntimeException", "Tried to marshall a Parcel that contained Binder objects."); 580 return NULL; 581 } 582 583 jbyteArray ret = env->NewByteArray(parcel->dataSize()); 584 585 if (ret != NULL) 586 { 587 jbyte* array = (jbyte*)env->GetPrimitiveArrayCritical(ret, 0); 588 if (array != NULL) 589 { 590 memcpy(array, parcel->data(), parcel->dataSize()); 591 env->ReleasePrimitiveArrayCritical(ret, array, 0); 592 } 593 } 594 595 return ret; 596 } 597 598 static jlong android_os_Parcel_unmarshall(JNIEnv* env, jclass clazz, jlong nativePtr, 599 jbyteArray data, jint offset, jint length) 600 { 601 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 602 if (parcel == NULL || length < 0) { 603 return 0; 604 } 605 606 jbyte* array = (jbyte*)env->GetPrimitiveArrayCritical(data, 0); 607 if (array) 608 { 609 parcel->setDataSize(length); 610 parcel->setDataPosition(0); 611 612 void* raw = parcel->writeInplace(length); 613 memcpy(raw, (array + offset), length); 614 615 env->ReleasePrimitiveArrayCritical(data, array, 0); 616 } 617 return parcel->getOpenAshmemSize(); 618 } 619 620 static jlong android_os_Parcel_appendFrom(JNIEnv* env, jclass clazz, jlong thisNativePtr, 621 jlong otherNativePtr, jint offset, jint length) 622 { 623 Parcel* thisParcel = reinterpret_cast<Parcel*>(thisNativePtr); 624 if (thisParcel == NULL) { 625 return 0; 626 } 627 Parcel* otherParcel = reinterpret_cast<Parcel*>(otherNativePtr); 628 if (otherParcel == NULL) { 629 return thisParcel->getOpenAshmemSize(); 630 } 631 632 status_t err = thisParcel->appendFrom(otherParcel, offset, length); 633 if (err != NO_ERROR) { 634 signalExceptionForError(env, clazz, err); 635 } 636 return thisParcel->getOpenAshmemSize(); 637 } 638 639 static jboolean android_os_Parcel_hasFileDescriptors(JNIEnv* env, jclass clazz, jlong nativePtr) 640 { 641 jboolean ret = JNI_FALSE; 642 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 643 if (parcel != NULL) { 644 if (parcel->hasFileDescriptors()) { 645 ret = JNI_TRUE; 646 } 647 } 648 return ret; 649 } 650 651 static void android_os_Parcel_writeInterfaceToken(JNIEnv* env, jclass clazz, jlong nativePtr, 652 jstring name) 653 { 654 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 655 if (parcel != NULL) { 656 // In the current implementation, the token is just the serialized interface name that 657 // the caller expects to be invoking 658 const jchar* str = env->GetStringCritical(name, 0); 659 if (str != NULL) { 660 parcel->writeInterfaceToken(String16( 661 reinterpret_cast<const char16_t*>(str), 662 env->GetStringLength(name))); 663 env->ReleaseStringCritical(name, str); 664 } 665 } 666 } 667 668 static void android_os_Parcel_enforceInterface(JNIEnv* env, jclass clazz, jlong nativePtr, jstring name) 669 { 670 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 671 if (parcel != NULL) { 672 const jchar* str = env->GetStringCritical(name, 0); 673 if (str) { 674 IPCThreadState* threadState = IPCThreadState::self(); 675 const int32_t oldPolicy = threadState->getStrictModePolicy(); 676 const bool isValid = parcel->enforceInterface( 677 String16(reinterpret_cast<const char16_t*>(str), 678 env->GetStringLength(name)), 679 threadState); 680 env->ReleaseStringCritical(name, str); 681 if (isValid) { 682 const int32_t newPolicy = threadState->getStrictModePolicy(); 683 if (oldPolicy != newPolicy) { 684 // Need to keep the Java-level thread-local strict 685 // mode policy in sync for the libcore 686 // enforcements, which involves an upcall back 687 // into Java. (We can't modify the 688 // Parcel.enforceInterface signature, as it's 689 // pseudo-public, and used via AIDL 690 // auto-generation...) 691 set_dalvik_blockguard_policy(env, newPolicy); 692 } 693 return; // everything was correct -> return silently 694 } 695 } 696 } 697 698 // all error conditions wind up here 699 jniThrowException(env, "java/lang/SecurityException", 700 "Binder invocation to an incorrect interface"); 701 } 702 703 static jlong android_os_Parcel_getGlobalAllocSize(JNIEnv* env, jclass clazz) 704 { 705 return Parcel::getGlobalAllocSize(); 706 } 707 708 static jlong android_os_Parcel_getGlobalAllocCount(JNIEnv* env, jclass clazz) 709 { 710 return Parcel::getGlobalAllocCount(); 711 } 712 713 static jlong android_os_Parcel_getBlobAshmemSize(JNIEnv* env, jclass clazz, jlong nativePtr) 714 { 715 Parcel* parcel = reinterpret_cast<Parcel*>(nativePtr); 716 if (parcel != NULL) { 717 return parcel->getBlobAshmemSize(); 718 } 719 return 0; 720 } 721 722 // ---------------------------------------------------------------------------- 723 724 static const JNINativeMethod gParcelMethods[] = { 725 {"nativeDataSize", "!(J)I", (void*)android_os_Parcel_dataSize}, 726 {"nativeDataAvail", "!(J)I", (void*)android_os_Parcel_dataAvail}, 727 {"nativeDataPosition", "!(J)I", (void*)android_os_Parcel_dataPosition}, 728 {"nativeDataCapacity", "!(J)I", (void*)android_os_Parcel_dataCapacity}, 729 {"nativeSetDataSize", "!(JI)J", (void*)android_os_Parcel_setDataSize}, 730 {"nativeSetDataPosition", "!(JI)V", (void*)android_os_Parcel_setDataPosition}, 731 {"nativeSetDataCapacity", "!(JI)V", (void*)android_os_Parcel_setDataCapacity}, 732 733 {"nativePushAllowFds", "!(JZ)Z", (void*)android_os_Parcel_pushAllowFds}, 734 {"nativeRestoreAllowFds", "!(JZ)V", (void*)android_os_Parcel_restoreAllowFds}, 735 736 {"nativeWriteByteArray", "(J[BII)V", (void*)android_os_Parcel_writeNative}, 737 {"nativeWriteBlob", "(J[BII)V", (void*)android_os_Parcel_writeBlob}, 738 {"nativeWriteInt", "!(JI)V", (void*)android_os_Parcel_writeInt}, 739 {"nativeWriteLong", "!(JJ)V", (void*)android_os_Parcel_writeLong}, 740 {"nativeWriteFloat", "!(JF)V", (void*)android_os_Parcel_writeFloat}, 741 {"nativeWriteDouble", "!(JD)V", (void*)android_os_Parcel_writeDouble}, 742 {"nativeWriteString", "(JLjava/lang/String;)V", (void*)android_os_Parcel_writeString}, 743 {"nativeWriteStrongBinder", "(JLandroid/os/IBinder;)V", (void*)android_os_Parcel_writeStrongBinder}, 744 {"nativeWriteFileDescriptor", "(JLjava/io/FileDescriptor;)J", (void*)android_os_Parcel_writeFileDescriptor}, 745 746 {"nativeCreateByteArray", "(J)[B", (void*)android_os_Parcel_createByteArray}, 747 {"nativeReadBlob", "(J)[B", (void*)android_os_Parcel_readBlob}, 748 {"nativeReadInt", "!(J)I", (void*)android_os_Parcel_readInt}, 749 {"nativeReadLong", "!(J)J", (void*)android_os_Parcel_readLong}, 750 {"nativeReadFloat", "!(J)F", (void*)android_os_Parcel_readFloat}, 751 {"nativeReadDouble", "!(J)D", (void*)android_os_Parcel_readDouble}, 752 {"nativeReadString", "(J)Ljava/lang/String;", (void*)android_os_Parcel_readString}, 753 {"nativeReadStrongBinder", "(J)Landroid/os/IBinder;", (void*)android_os_Parcel_readStrongBinder}, 754 {"nativeReadFileDescriptor", "(J)Ljava/io/FileDescriptor;", (void*)android_os_Parcel_readFileDescriptor}, 755 756 {"openFileDescriptor", "(Ljava/lang/String;I)Ljava/io/FileDescriptor;", (void*)android_os_Parcel_openFileDescriptor}, 757 {"dupFileDescriptor", "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;", (void*)android_os_Parcel_dupFileDescriptor}, 758 {"closeFileDescriptor", "(Ljava/io/FileDescriptor;)V", (void*)android_os_Parcel_closeFileDescriptor}, 759 {"clearFileDescriptor", "(Ljava/io/FileDescriptor;)V", (void*)android_os_Parcel_clearFileDescriptor}, 760 761 {"nativeCreate", "()J", (void*)android_os_Parcel_create}, 762 {"nativeFreeBuffer", "(J)J", (void*)android_os_Parcel_freeBuffer}, 763 {"nativeDestroy", "(J)V", (void*)android_os_Parcel_destroy}, 764 765 {"nativeMarshall", "(J)[B", (void*)android_os_Parcel_marshall}, 766 {"nativeUnmarshall", "(J[BII)J", (void*)android_os_Parcel_unmarshall}, 767 {"nativeAppendFrom", "(JJII)J", (void*)android_os_Parcel_appendFrom}, 768 {"nativeHasFileDescriptors", "!(J)Z", (void*)android_os_Parcel_hasFileDescriptors}, 769 {"nativeWriteInterfaceToken", "(JLjava/lang/String;)V", (void*)android_os_Parcel_writeInterfaceToken}, 770 {"nativeEnforceInterface", "(JLjava/lang/String;)V", (void*)android_os_Parcel_enforceInterface}, 771 772 {"getGlobalAllocSize", "()J", (void*)android_os_Parcel_getGlobalAllocSize}, 773 {"getGlobalAllocCount", "()J", (void*)android_os_Parcel_getGlobalAllocCount}, 774 775 {"nativeGetBlobAshmemSize", "(J)J", (void*)android_os_Parcel_getBlobAshmemSize}, 776 }; 777 778 const char* const kParcelPathName = "android/os/Parcel"; 779 780 int register_android_os_Parcel(JNIEnv* env) 781 { 782 jclass clazz = FindClassOrDie(env, kParcelPathName); 783 784 gParcelOffsets.clazz = MakeGlobalRefOrDie(env, clazz); 785 gParcelOffsets.mNativePtr = GetFieldIDOrDie(env, clazz, "mNativePtr", "J"); 786 gParcelOffsets.obtain = GetStaticMethodIDOrDie(env, clazz, "obtain", "()Landroid/os/Parcel;"); 787 gParcelOffsets.recycle = GetMethodIDOrDie(env, clazz, "recycle", "()V"); 788 789 return RegisterMethodsOrDie(env, kParcelPathName, gParcelMethods, NELEM(gParcelMethods)); 790 } 791 792 }; 793
