Parcel.cpp revision 2d13afdfa1f43973bf3cb917c7d6496a38baa446
17c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project/* 27c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * Copyright (C) 2005 The Android Open Source Project 37c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * 47c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 57c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * you may not use this file except in compliance with the License. 67c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * You may obtain a copy of the License at 77c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * 87c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 97c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * 107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * See the License for the specific language governing permissions and 147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project * limitations under the License. 157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project */ 167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define LOG_TAG "Parcel" 187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project//#define LOG_NDEBUG 0 197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 20c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/Parcel.h> 217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 22702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick#include <binder/IPCThreadState.h> 23c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/Binder.h> 24c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/BpBinder.h> 25c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/ProcessState.h> 26002e1e58dfe19dd3e49a59c6827cbf51573941a2Mathias Agopian#include <binder/TextOutput.h> 27002e1e58dfe19dd3e49a59c6827cbf51573941a2Mathias Agopian 28abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang#include <errno.h> 29002e1e58dfe19dd3e49a59c6827cbf51573941a2Mathias Agopian#include <utils/Debug.h> 307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/Log.h> 317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/String8.h> 327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/String16.h> 337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/misc.h> 3498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian#include <utils/Flattenable.h> 355707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown#include <cutils/ashmem.h> 367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 37208059f67ed2dd9fa025e07fcb6954d3cb61c79eMathias Agopian#include <private/binder/binder_module.h> 387e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn#include <private/binder/Static.h> 397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 40f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg#include <inttypes.h> 417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <stdio.h> 427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <stdlib.h> 437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <stdint.h> 445707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown#include <sys/mman.h> 457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#ifndef INT32_MAX 477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define INT32_MAX ((int32_t)(2147483647)) 487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#endif 497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define LOG_REFS(...) 519f760150f6e0f39b9923cfdc875373606839ee00Steve Block//#define LOG_REFS(...) ALOG(LOG_DEBUG, "Parcel", __VA_ARGS__) 527e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn#define LOG_ALLOC(...) 537e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn//#define LOG_ALLOC(...) ALOG(LOG_DEBUG, "Parcel", __VA_ARGS__) 547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// --------------------------------------------------------------------------- 567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define PAD_SIZE(s) (((s)+3)&~3) 587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 59a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick// Note: must be kept in sync with android/os/StrictMode.java's PENALTY_GATHER 600c1f5cbb8a41d19195ab49dcfeb5caaea2d3fcdaJeff Sharkey#define STRICT_MODE_PENALTY_GATHER (0x40 << 16) 61a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick 62d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick// Note: must be kept in sync with android/os/Parcel.java's EX_HAS_REPLY_HEADER 63d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick#define EX_HAS_REPLY_HEADER -128 64d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick 655707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown// Maximum size of a blob to transfer in-place. 665707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownstatic const size_t IN_PLACE_BLOB_LIMIT = 40 * 1024; 675707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// XXX This can be made public if we want to provide 697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// support for typed data. 707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstruct small_flat_data 717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint32_t type; 737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint32_t data; 747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project}; 757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectnamespace android { 777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 78a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackbornstatic pthread_mutex_t gParcelGlobalAllocSizeLock = PTHREAD_MUTEX_INITIALIZER; 79a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackbornstatic size_t gParcelGlobalAllocSize = 0; 80a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackbornstatic size_t gParcelGlobalAllocCount = 0; 81a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn 827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid acquire_object(const sp<ProcessState>& proc, 837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object& obj, const void* who) 847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (obj.type) { 867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) { 887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p acquiring reference on local %p", who, obj.cookie); 8984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<IBinder*>(obj.cookie)->incStrong(who); 907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_BINDER: 937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) 9484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<RefBase::weakref_type*>(obj.binder)->incWeak(who); 957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: { 977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<IBinder> b = proc->getStrongProxyForHandle(obj.handle); 987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) { 997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p acquiring reference on remote %p", who, b.get()); 1007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project b->incStrong(who); 1017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_HANDLE: { 1057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const wp<IBinder> b = proc->getWeakProxyForHandle(obj.handle); 1067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) b.get_refs()->incWeak(who); 1077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_FD: { 1107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // intentionally blank -- nothing to do to acquire this, but we do 1117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // recognize it as a legitimate object type. 1127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1166f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGD("Invalid object type 0x%08x", obj.type); 1177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid release_object(const sp<ProcessState>& proc, 1207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object& obj, const void* who) 1217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (obj.type) { 1237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 1247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) { 1257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p releasing reference on local %p", who, obj.cookie); 12684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<IBinder*>(obj.cookie)->decStrong(who); 1277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_BINDER: 1307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) 13184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<RefBase::weakref_type*>(obj.binder)->decWeak(who); 1327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: { 1347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<IBinder> b = proc->getStrongProxyForHandle(obj.handle); 1357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) { 1367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p releasing reference on remote %p", who, b.get()); 1377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project b->decStrong(who); 1387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_HANDLE: { 1427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const wp<IBinder> b = proc->getWeakProxyForHandle(obj.handle); 1437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) b.get_refs()->decWeak(who); 1447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_FD: { 14784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (obj.cookie != 0) close(obj.handle); 1487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1526f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGE("Invalid object type 0x%08x", obj.type); 1537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectinline static status_t finish_flatten_binder( 1566f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross const sp<IBinder>& /*binder*/, const flat_binder_object& flat, Parcel* out) 1577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return out->writeObject(flat, false); 1597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1616f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossstatus_t flatten_binder(const sp<ProcessState>& /*proc*/, 1627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<IBinder>& binder, Parcel* out) 1637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project flat_binder_object obj; 165d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 1667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 1677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (binder != NULL) { 1687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project IBinder *local = binder->localBinder(); 1697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!local) { 1707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project BpBinder *proxy = binder->remoteBinder(); 1717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (proxy == NULL) { 172e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("null proxy"); 1737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const int32_t handle = proxy ? proxy->handle() : 0; 1757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_HANDLE; 17607fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */ 1777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.handle = handle; 17884e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 1797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 1807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 18184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = reinterpret_cast<uintptr_t>(local->getWeakRefs()); 18284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = reinterpret_cast<uintptr_t>(local); 1837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 1857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 18684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = 0; 18784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 1887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 189d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 1907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(binder, obj, out); 1917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1936f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossstatus_t flatten_binder(const sp<ProcessState>& /*proc*/, 1947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const wp<IBinder>& binder, Parcel* out) 1957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project flat_binder_object obj; 197d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 1987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 1997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (binder != NULL) { 2007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project sp<IBinder> real = binder.promote(); 2017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (real != NULL) { 2027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project IBinder *local = real->localBinder(); 2037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!local) { 2047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project BpBinder *proxy = real->remoteBinder(); 2057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (proxy == NULL) { 206e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("null proxy"); 2077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const int32_t handle = proxy ? proxy->handle() : 0; 2097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_WEAK_HANDLE; 21007fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */ 2117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.handle = handle; 21284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 2137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 2147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_WEAK_BINDER; 21584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = reinterpret_cast<uintptr_t>(binder.get_refs()); 21684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = reinterpret_cast<uintptr_t>(binder.unsafe_get()); 2177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(real, obj, out); 2197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 220d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // XXX How to deal? In order to flatten the given binder, 2227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // we need to probe it for information, which requires a primary 2237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // reference... but we don't have one. 2247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // 2257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // The OpenBinder implementation uses a dynamic_cast<> here, 2267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // but we can't do that with the different reference counting 2277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // implementation we are using. 228e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("Unable to unflatten Binder weak reference!"); 2297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 23084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = 0; 23184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 2327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(NULL, obj, out); 233d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 2357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 23684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = 0; 23784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 2387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(NULL, obj, out); 2397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectinline static status_t finish_unflatten_binder( 2436f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross BpBinder* /*proxy*/, const flat_binder_object& /*flat*/, 2446f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross const Parcel& /*in*/) 2457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 2477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 248d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t unflatten_binder(const sp<ProcessState>& proc, 2507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const Parcel& in, sp<IBinder>* out) 2517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat = in.readObject(false); 253d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat) { 2557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (flat->type) { 2567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 25784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg *out = reinterpret_cast<IBinder*>(flat->cookie); 2587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder(NULL, *flat, in); 2597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: 2607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *out = proc->getStrongProxyForHandle(flat->handle); 2617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder( 2627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static_cast<BpBinder*>(out->get()), *flat, in); 263d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn } 2647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_TYPE; 2667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t unflatten_binder(const sp<ProcessState>& proc, 2697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const Parcel& in, wp<IBinder>* out) 2707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat = in.readObject(false); 272d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat) { 2747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (flat->type) { 2757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 27684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg *out = reinterpret_cast<IBinder*>(flat->cookie); 2777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder(NULL, *flat, in); 2787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_BINDER: 27984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (flat->binder != 0) { 2807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project out->set_object_and_refs( 28184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<IBinder*>(flat->cookie), 28284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<RefBase::weakref_type*>(flat->binder)); 2837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 2847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *out = NULL; 2857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder(NULL, *flat, in); 2877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: 2887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_HANDLE: 2897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *out = proc->getWeakProxyForHandle(flat->handle); 2907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder( 2917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static_cast<BpBinder*>(out->unsafe_get()), *flat, in); 2927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_TYPE; 2957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// --------------------------------------------------------------------------- 2987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectParcel::Parcel() 3007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3017e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: constructing", this); 3027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project initState(); 3037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectParcel::~Parcel() 3067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeDataNoInit(); 3087e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: destroyed", this); 3097e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn} 3107e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn 3117e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackbornsize_t Parcel::getGlobalAllocSize() { 312a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 313a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn size_t size = gParcelGlobalAllocSize; 314a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 315a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn return size; 3167e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn} 3177e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn 3187e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackbornsize_t Parcel::getGlobalAllocCount() { 319a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 320a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn size_t count = gParcelGlobalAllocCount; 321a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 322a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn return count; 3237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst uint8_t* Parcel::data() const 3267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mData; 3287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataSize() const 3317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return (mDataSize > mDataPos ? mDataSize : mDataPos); 3337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataAvail() const 3367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // TODO: decide what to do about the possibility that this can 3387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // report an available-data size that exceeds a Java int's max 3397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // positive value, causing havoc. Fortunately this will only 3407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // happen if someone constructs a Parcel containing more than two 3417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // gigabytes of data, which on typical phone hardware is simply 3427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // not possible. 3437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return dataSize() - dataPosition(); 3447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataPosition() const 3477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mDataPos; 3497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataCapacity() const 3527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mDataCapacity; 3547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::setDataSize(size_t size) 3577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err; 3597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project err = continueWrite(size); 3607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) { 3617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = size; 362d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("setDataSize Setting data size of %p to %zu", this, mDataSize); 3637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 3657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::setDataPosition(size_t pos) const 3687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = pos; 3707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 3717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::setDataCapacity(size_t size) 3747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 37597e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if (size > mDataCapacity) return continueWrite(size); 3767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 3777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::setData(const uint8_t* buffer, size_t len) 3807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = restartWrite(len); 3827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) { 3837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(const_cast<uint8_t*>(data()), buffer, len); 3847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = len; 3857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = false; 3867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 3887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 39051faf46e2958c57dab46d9420e585319125c7c42Andreas Huberstatus_t Parcel::appendFrom(const Parcel *parcel, size_t offset, size_t len) 3917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 3937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err; 39451faf46e2958c57dab46d9420e585319125c7c42Andreas Huber const uint8_t *data = parcel->mData; 39584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg const binder_size_t *objects = parcel->mObjects; 3967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t size = parcel->mObjectsSize; 3977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int startPos = mDataPos; 3987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int firstIndex = -1, lastIndex = -2; 3997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (len == 0) { 4017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 4027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // range checks against the source parcel size 4057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((offset > parcel->mDataSize) 4067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project || (len > parcel->mDataSize) 4077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project || (offset + len > parcel->mDataSize)) { 4087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_VALUE; 4097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Count objects in range 4127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (int i = 0; i < (int) size; i++) { 4137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t off = objects[i]; 4147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((off >= offset) && (off < offset + len)) { 4157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (firstIndex == -1) { 4167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project firstIndex = i; 4177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project lastIndex = i; 4197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int numObjects = lastIndex - firstIndex + 1; 4227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 42397e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if ((mDataSize+len) > mDataCapacity) { 42497e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn // grow data 42597e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn err = growData(len); 42697e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if (err != NO_ERROR) { 42797e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn return err; 42897e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn } 4297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // append data 4327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(mData + mDataPos, data + offset, len); 4337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += len; 4347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize += len; 4357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4368938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn err = NO_ERROR; 4378938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn 4387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (numObjects > 0) { 4397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // grow objects 4407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mObjectsCapacity < mObjectsSize + numObjects) { 4417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int newSize = ((mObjectsSize + numObjects)*3)/2; 44284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t *objects = 44384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg (binder_size_t*)realloc(mObjects, newSize*sizeof(binder_size_t)); 44484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (objects == (binder_size_t*)0) { 4457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 4467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 4487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsCapacity = newSize; 4497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 450d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 4517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // append and acquire objects 4527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int idx = mObjectsSize; 4537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (int i = firstIndex; i <= lastIndex; i++) { 4547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t off = objects[i] - offset + startPos; 4557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects[idx++] = off; 4567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize++; 4577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4588af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn flat_binder_object* flat 4597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(mData + off); 4607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquire_object(proc, *flat, this); 4617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 4638af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn // If this is a file descriptor, we need to dup it so the 4648af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn // new Parcel now owns its own fd, and can declare that we 4658af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn // officially know we have fds. 4668af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn flat->handle = dup(flat->handle); 46784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg flat->cookie = 1; 4687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = mFdsKnown = true; 4698938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn if (!mAllowFds) { 4708938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn err = FDS_NOT_ALLOWED; 4718938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn } 4727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4768938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn return err; 4778938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn} 4788938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn 4797746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackbornbool Parcel::pushAllowFds(bool allowFds) 4808938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn{ 4818938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn const bool origValue = mAllowFds; 4827746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn if (!allowFds) { 4837746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn mAllowFds = false; 4847746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn } 4858938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn return origValue; 4867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 4877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4887746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackbornvoid Parcel::restoreAllowFds(bool lastValue) 4897746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn{ 4907746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn mAllowFds = lastValue; 4917746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn} 4927746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn 4937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectbool Parcel::hasFileDescriptors() const 4947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 4957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!mFdsKnown) { 4967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project scanForFds(); 4977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mHasFds; 4997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 501702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick// Write RPC headers. (previously just the interface token) 5027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeInterfaceToken(const String16& interface) 5037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 504a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick writeInt32(IPCThreadState::self()->getStrictModePolicy() | 505a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick STRICT_MODE_PENALTY_GATHER); 5067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // currently the interface identification token is just its name as a string 5077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return writeString16(interface); 5087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 51083c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopianbool Parcel::checkInterface(IBinder* binder) const 51183c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian{ 512702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick return enforceInterface(binder->getInterfaceDescriptor()); 51383c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian} 51483c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian 515a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrickbool Parcel::enforceInterface(const String16& interface, 51670081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick IPCThreadState* threadState) const 5177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 51870081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick int32_t strictPolicy = readInt32(); 51970081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick if (threadState == NULL) { 52070081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick threadState = IPCThreadState::self(); 521a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick } 5225273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick if ((threadState->getLastTransactionBinderFlags() & 5235273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick IBinder::FLAG_ONEWAY) != 0) { 5245273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // For one-way calls, the callee is running entirely 5255273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // disconnected from the caller, so disable StrictMode entirely. 5265273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // Not only does disk/network usage not impact the caller, but 5275273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // there's no way to commuicate back any violations anyway. 5285273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick threadState->setStrictModePolicy(0); 5295273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick } else { 5305273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick threadState->setStrictModePolicy(strictPolicy); 5315273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick } 53283c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian const String16 str(readString16()); 5337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str == interface) { 5347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return true; 5357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 536d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGW("**** enforceInterface() expected '%s' but read '%s'", 5377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project String8(interface).string(), String8(str).string()); 5387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return false; 5397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 540702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick} 5417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 54284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevågconst binder_size_t* Parcel::objects() const 5437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mObjects; 5457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::objectsCount() const 5487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mObjectsSize; 5507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::errorCheck() const 5537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mError; 5557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::setError(status_t err) 5587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = err; 5607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::finishWrite(size_t len) 5637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("Finish write of %d\n", len); 5657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += len; 566d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("finishWrite Setting data pos of %p to %zu", this, mDataPos); 5677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mDataPos > mDataSize) { 5687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataPos; 569d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("finishWrite Setting data size of %p to %zu", this, mDataSize); 5707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("New pos=%d, size=%d\n", mDataPos, mDataSize); 5727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 5737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeUnpadded(const void* data, size_t len) 5767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t end = mDataPos + len; 5787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (end < mDataPos) { 5797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // integer overflow 5807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_VALUE; 5817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (end <= mDataCapacity) { 5847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectrestart_write: 5857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(mData+mDataPos, data, len); 5867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finishWrite(len); 5877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = growData(len); 5907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) goto restart_write; 5917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 5927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::write(const void* data, size_t len) 5957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project void* const d = writeInplace(len); 5977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (d) { 5987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(d, data, len); 5997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 6007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 6017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mError; 6027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid* Parcel::writeInplace(size_t len) 6057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 6067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t padded = PAD_SIZE(len); 6077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // sanity check for integer overflow 6097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mDataPos+padded < mDataPos) { 6107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 6117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 6127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((mDataPos+padded) <= mDataCapacity) { 6147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectrestart_write: 6157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("Writing %ld bytes, padded to %ld\n", len, padded); 6167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* const data = mData+mDataPos; 6177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Need to pad at end? 6197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (padded != len) { 6207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#if BYTE_ORDER == BIG_ENDIAN 6217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static const uint32_t mask[4] = { 6227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 0x00000000, 0xffffff00, 0xffff0000, 0xff000000 6237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project }; 6247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#endif 6257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#if BYTE_ORDER == LITTLE_ENDIAN 6267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static const uint32_t mask[4] = { 6277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 0x00000000, 0x00ffffff, 0x0000ffff, 0x000000ff 6287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project }; 6297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#endif 6307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("Applying pad mask: %p to %p\n", (void*)mask[padded-len], 6317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // *reinterpret_cast<void**>(data+padded-4)); 6327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *reinterpret_cast<uint32_t*>(data+padded-4) &= mask[padded-len]; 6337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 6347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project finishWrite(padded); 6367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return data; 6377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 6387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = growData(padded); 6407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) goto restart_write; 6417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 6427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeInt32(int32_t val) 6457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 64684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 6477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 64841a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza 64941a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stozastatus_t Parcel::writeUint32(uint32_t val) 65041a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza{ 65141a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza return writeAligned(val); 65241a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza} 65341a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza 6545c0106e134366312206702f1b072347e20c90374Marco Nelissenstatus_t Parcel::writeInt32Array(size_t len, const int32_t *val) { 6555c0106e134366312206702f1b072347e20c90374Marco Nelissen if (!val) { 6565c0106e134366312206702f1b072347e20c90374Marco Nelissen return writeAligned(-1); 6575c0106e134366312206702f1b072347e20c90374Marco Nelissen } 6585c0106e134366312206702f1b072347e20c90374Marco Nelissen status_t ret = writeAligned(len); 6595c0106e134366312206702f1b072347e20c90374Marco Nelissen if (ret == NO_ERROR) { 6605c0106e134366312206702f1b072347e20c90374Marco Nelissen ret = write(val, len * sizeof(*val)); 6615c0106e134366312206702f1b072347e20c90374Marco Nelissen } 6625c0106e134366312206702f1b072347e20c90374Marco Nelissen return ret; 6635c0106e134366312206702f1b072347e20c90374Marco Nelissen} 664f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissenstatus_t Parcel::writeByteArray(size_t len, const uint8_t *val) { 665f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen if (!val) { 666f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen return writeAligned(-1); 667f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen } 668f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen status_t ret = writeAligned(len); 669f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen if (ret == NO_ERROR) { 670f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen ret = write(val, len * sizeof(*val)); 671f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen } 672f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen return ret; 673f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen} 6747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeInt64(int64_t val) 6767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 67784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 6787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6802d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wustatus_t Parcel::writeUint64(uint64_t val) 6812d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu{ 6822d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu return writeAligned(val); 6832d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu} 6842d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu 685f683e0163a84d93448b9388126902242367cd961Serban Constantinescustatus_t Parcel::writePointer(uintptr_t val) 686f683e0163a84d93448b9388126902242367cd961Serban Constantinescu{ 68784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return writeAligned<binder_uintptr_t>(val); 688f683e0163a84d93448b9388126902242367cd961Serban Constantinescu} 689f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 6907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeFloat(float val) 6917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 69284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 6937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 695cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#if defined(__mips__) && defined(__mips_hard_float) 696cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 697cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leungstatus_t Parcel::writeDouble(double val) 698cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung{ 699cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung union { 700cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung double d; 701cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung unsigned long long ll; 702cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung } u; 703cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung u.d = val; 704cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return writeAligned(u.ll); 705cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung} 706cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 707cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#else 708cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 7097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeDouble(double val) 7107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 71184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 71284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 7137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 714cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#endif 715cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 7167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeCString(const char* str) 7177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return write(str, strlen(str)+1); 7197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeString8(const String8& str) 7227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = writeInt32(str.bytes()); 724d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera // only write string if its length is more than zero characters, 725d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera // as readString8 will only read if the length field is non-zero. 726d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera // this is slightly different from how writeString16 works. 727d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera if (str.bytes() > 0 && err == NO_ERROR) { 7287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project err = write(str.string(), str.bytes()+1); 7297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 7307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 7317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeString16(const String16& str) 7347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return writeString16(str.string(), str.size()); 7367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeString16(const char16_t* str, size_t len) 7397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str == NULL) return writeInt32(-1); 741d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 7427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = writeInt32(len); 7437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) { 7447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project len *= sizeof(char16_t); 7457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)writeInplace(len+sizeof(char16_t)); 7467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (data) { 7477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(data, str, len); 7487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *reinterpret_cast<char16_t*>(data+len) = 0; 7497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 7507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 7517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project err = mError; 7527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 7537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 7547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeStrongBinder(const sp<IBinder>& val) 7577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return flatten_binder(ProcessState::self(), val, this); 7597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeWeakBinder(const wp<IBinder>& val) 7627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return flatten_binder(ProcessState::self(), val, this); 7647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 766a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopianstatus_t Parcel::writeNativeHandle(const native_handle* handle) 7675f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project{ 7681d0a95b12a9194f64dd436224ec3bf8e0622d678Mathias Agopian if (!handle || handle->version != sizeof(native_handle)) 7695f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project return BAD_TYPE; 7705f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 7715f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project status_t err; 772a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = writeInt32(handle->numFds); 7735f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return err; 774edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 775a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = writeInt32(handle->numInts); 7765f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return err; 777edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 778a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian for (int i=0 ; err==NO_ERROR && i<handle->numFds ; i++) 779a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = writeDupFileDescriptor(handle->data[i]); 780edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 781edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) { 7829d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("write native handle, write dup fd failed"); 783edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 784edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 785a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = write(handle->data + handle->numFds, sizeof(int)*handle->numInts); 7865f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project return err; 7875f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project} 7885f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 78993ff1f985e233fe04412a65041e977c9f0c21f5bJeff Brownstatus_t Parcel::writeFileDescriptor(int fd, bool takeOwnership) 7907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project flat_binder_object obj; 7927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_FD; 7937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 79407fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */ 7957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.handle = fd; 79684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = takeOwnership ? 1 : 0; 7977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return writeObject(obj, true); 7987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 8007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeDupFileDescriptor(int fd) 8017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 802d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown int dupFd = dup(fd); 803d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown if (dupFd < 0) { 804d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown return -errno; 805d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown } 806d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown status_t err = writeFileDescriptor(dupFd, true /*takeOwnership*/); 807d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown if (err) { 808d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown close(dupFd); 809d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown } 810d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown return err; 8117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 8127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 813cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// WARNING: This method must stay in sync with 814cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// Parcelable.Creator<ParcelFileDescriptor> CREATOR 815cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// in frameworks/base/core/java/android/os/ParcelFileDescriptor.java 816cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwoodstatus_t Parcel::writeParcelFileDescriptor(int fd, int commChannel) { 817cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status_t status; 818cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 819cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (fd < 0) { 820cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(0); // ParcelFileDescriptor is null 821cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 822cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } else { 823cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(1); // ParcelFileDescriptor is not null 824cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 825cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeDupFileDescriptor(fd); 826cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 827cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (commChannel < 0) { 828cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(0); // commChannel is null 829cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 830cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } else { 831cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(1); // commChannel is not null 832cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 833cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeDupFileDescriptor(commChannel); 834cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 835cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 836cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood return status; 837cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood} 838cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 8395707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownstatus_t Parcel::writeBlob(size_t len, WritableBlob* outBlob) 8405707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown{ 8415707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status_t status; 8425707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8435707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!mAllowFds || len <= IN_PLACE_BLOB_LIMIT) { 8446807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("writeBlob: write in place"); 8455707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status = writeInt32(0); 8465707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (status) return status; 8475707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8485707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown void* ptr = writeInplace(len); 8495707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!ptr) return NO_MEMORY; 8505707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8515707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(false /*mapped*/, ptr, len); 8525707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 8535707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8545707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8556807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("writeBlob: write to ashmem"); 8565707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int fd = ashmem_create_region("Parcel Blob", len); 8575707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (fd < 0) return NO_MEMORY; 8585707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8595707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int result = ashmem_set_prot_region(fd, PROT_READ | PROT_WRITE); 8605707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (result < 0) { 861ec4e0063a1c5cc6e01472cc2a9d27609ce3827d7Jeff Brown status = result; 8625707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } else { 8635707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown void* ptr = ::mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); 8645707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (ptr == MAP_FAILED) { 8655707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status = -errno; 8665707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } else { 8675707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown result = ashmem_set_prot_region(fd, PROT_READ); 8685707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (result < 0) { 869ec4e0063a1c5cc6e01472cc2a9d27609ce3827d7Jeff Brown status = result; 8705707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } else { 8715707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status = writeInt32(1); 8725707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!status) { 87393ff1f985e233fe04412a65041e977c9f0c21f5bJeff Brown status = writeFileDescriptor(fd, true /*takeOwnership*/); 8745707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!status) { 8755707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(true /*mapped*/, ptr, len); 8765707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 8775707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8785707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8795707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8805707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8815707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown ::munmap(ptr, len); 8825707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8835707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown ::close(fd); 8845707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return status; 8855707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 8865707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 887e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t Parcel::write(const FlattenableHelperInterface& val) 88898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian{ 88998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian status_t err; 89098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 89198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // size if needed 892e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian const size_t len = val.getFlattenedSize(); 893e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian const size_t fd_count = val.getFdCount(); 89498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 89598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = this->writeInt32(len); 89698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (err) return err; 89798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 89898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = this->writeInt32(fd_count); 89998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (err) return err; 90098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 90198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // payload 902e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian void* const buf = this->writeInplace(PAD_SIZE(len)); 90398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (buf == NULL) 90498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return BAD_VALUE; 90598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 90698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian int* fds = NULL; 90798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 90898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian fds = new int[fd_count]; 90998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 91098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 91198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = val.flatten(buf, len, fds, fd_count); 91298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian for (size_t i=0 ; i<fd_count && err==NO_ERROR ; i++) { 91398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = this->writeDupFileDescriptor( fds[i] ); 91498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 91598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 91698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 91798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian delete [] fds; 91898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 91998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 92098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return err; 92198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 92298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 9237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeObject(const flat_binder_object& val, bool nullMetaData) 9247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const bool enoughData = (mDataPos+sizeof(val)) <= mDataCapacity; 9267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const bool enoughObjects = mObjectsSize < mObjectsCapacity; 9277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (enoughData && enoughObjects) { 9287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectrestart_write: 9297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *reinterpret_cast<flat_binder_object*>(mData+mDataPos) = val; 930d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 9317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Need to write meta-data? 93284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (nullMetaData || val.binder != 0) { 9337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects[mObjectsSize] = mDataPos; 9347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquire_object(ProcessState::self(), val, this); 9357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize++; 9367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 937d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 9387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // remember if it's a file descriptor 9397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (val.type == BINDER_TYPE_FD) { 9408938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn if (!mAllowFds) { 9418938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn return FDS_NOT_ALLOWED; 9428938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn } 9437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = mFdsKnown = true; 9447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finishWrite(sizeof(flat_binder_object)); 9477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!enoughData) { 9507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const status_t err = growData(sizeof(val)); 9517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err != NO_ERROR) return err; 9527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!enoughObjects) { 9547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t newSize = ((mObjectsSize+2)*3)/2; 95584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* objects = (binder_size_t*)realloc(mObjects, newSize*sizeof(binder_size_t)); 9567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objects == NULL) return NO_MEMORY; 9577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 9587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsCapacity = newSize; 9597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 960d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 9617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project goto restart_write; 9627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 964837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrickstatus_t Parcel::writeNoException() 965837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick{ 966837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick return writeInt32(0); 967837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick} 968837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick 9696f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid Parcel::remove(size_t /*start*/, size_t /*amt*/) 9707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_ALWAYS_FATAL("Parcel::remove() not yet implemented!"); 9727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::read(void* outData, size_t len) const 9757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9765b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root if ((mDataPos+PAD_SIZE(len)) >= mDataPos && (mDataPos+PAD_SIZE(len)) <= mDataSize 9775b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root && len <= PAD_SIZE(len)) { 9787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(outData, mData+mDataPos, len); 9797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += PAD_SIZE(len); 980d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("read Setting data pos of %p to %zu", this, mDataPos); 9817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 9827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NOT_ENOUGH_DATA; 9847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst void* Parcel::readInplace(size_t len) const 9877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9885b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root if ((mDataPos+PAD_SIZE(len)) >= mDataPos && (mDataPos+PAD_SIZE(len)) <= mDataSize 9895b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root && len <= PAD_SIZE(len)) { 9907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const void* data = mData+mDataPos; 9917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += PAD_SIZE(len); 992d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readInplace Setting data pos of %p to %zu", this, mDataPos); 9937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return data; 9947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 9967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 99884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Hubertemplate<class T> 99984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::readAligned(T *pArg) const { 100084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE(sizeof(T)) == sizeof(T)); 100184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 100284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if ((mDataPos+sizeof(T)) <= mDataSize) { 10037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const void* data = mData+mDataPos; 100484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber mDataPos += sizeof(T); 100584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber *pArg = *reinterpret_cast<const T*>(data); 10067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 10077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 10087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NOT_ENOUGH_DATA; 10097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 10107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 101284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Hubertemplate<class T> 101384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas HuberT Parcel::readAligned() const { 101484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber T result; 101584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if (readAligned(&result) != NO_ERROR) { 101684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber result = 0; 101784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber } 101884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 101984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return result; 102084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 102184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 102284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Hubertemplate<class T> 102384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::writeAligned(T val) { 102484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE(sizeof(T)) == sizeof(T)); 102584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 102684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if ((mDataPos+sizeof(val)) <= mDataCapacity) { 102784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberrestart_write: 102884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber *reinterpret_cast<T*>(mData+mDataPos) = val; 102984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return finishWrite(sizeof(val)); 103084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber } 103184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 103284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber status_t err = growData(sizeof(val)); 103384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if (err == NO_ERROR) goto restart_write; 103484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return err; 103584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 103684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 103784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::readInt32(int32_t *pArg) const 103884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber{ 103984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 104084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 104184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 10427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectint32_t Parcel::readInt32() const 10437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 104484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<int32_t>(); 10457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 104741a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stozastatus_t Parcel::readUint32(uint32_t *pArg) const 104841a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza{ 104941a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza return readAligned(pArg); 105041a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza} 105141a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza 105241a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stozauint32_t Parcel::readUint32() const 105341a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza{ 105441a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza return readAligned<uint32_t>(); 105541a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza} 10567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::readInt64(int64_t *pArg) const 10587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 105984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 10607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectint64_t Parcel::readInt64() const 10647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 106584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<int64_t>(); 10667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10682d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wustatus_t Parcel::readUint64(uint64_t *pArg) const 10692d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu{ 10702d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu return readAligned(pArg); 10712d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu} 10722d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu 10732d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wuuint64_t Parcel::readUint64() const 10742d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu{ 10752d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu return readAligned<uint64_t>(); 10762d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu} 10772d13afdfa1f43973bf3cb917c7d6496a38baa446Ronghua Wu 1078f683e0163a84d93448b9388126902242367cd961Serban Constantinescustatus_t Parcel::readPointer(uintptr_t *pArg) const 1079f683e0163a84d93448b9388126902242367cd961Serban Constantinescu{ 108084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg status_t ret; 108184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_uintptr_t ptr; 108284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg ret = readAligned(&ptr); 108384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (!ret) 108484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg *pArg = ptr; 108584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return ret; 1086f683e0163a84d93448b9388126902242367cd961Serban Constantinescu} 1087f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 1088f683e0163a84d93448b9388126902242367cd961Serban Constantinescuuintptr_t Parcel::readPointer() const 1089f683e0163a84d93448b9388126902242367cd961Serban Constantinescu{ 109084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return readAligned<binder_uintptr_t>(); 1091f683e0163a84d93448b9388126902242367cd961Serban Constantinescu} 1092f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 1093f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 10947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::readFloat(float *pArg) const 10957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 109684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 10977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectfloat Parcel::readFloat() const 11017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 110284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<float>(); 11037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1105cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#if defined(__mips__) && defined(__mips_hard_float) 1106cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 11077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::readDouble(double *pArg) const 11087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1109cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung union { 1110cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung double d; 1111cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung unsigned long long ll; 1112cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung } u; 11132c68d380c9ef765a7d46e5a4735f39e6c27849f2Narayan Kamath u.d = 0; 1114cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung status_t status; 1115cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung status = readAligned(&u.ll); 1116cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung *pArg = u.d; 1117cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return status; 11187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1120cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leungdouble Parcel::readDouble() const 1121cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung{ 1122cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung union { 1123cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung double d; 1124cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung unsigned long long ll; 1125cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung } u; 1126cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung u.ll = readAligned<unsigned long long>(); 1127cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return u.d; 1128cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung} 1129cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 1130cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#else 1131cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 1132cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leungstatus_t Parcel::readDouble(double *pArg) const 1133cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung{ 1134cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return readAligned(pArg); 1135cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung} 11367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectdouble Parcel::readDouble() const 11387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 113984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<double>(); 114084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 114184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 1142cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#endif 1143cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 114484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::readIntPtr(intptr_t *pArg) const 114584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber{ 114684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 114784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 114884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 114984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 115084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberintptr_t Parcel::readIntPtr() const 115184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber{ 115284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<intptr_t>(); 11537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst char* Parcel::readCString() const 11577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t avail = mDataSize-mDataPos; 11597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (avail > 0) { 11607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char* str = reinterpret_cast<const char*>(mData+mDataPos); 11617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // is the string's trailing NUL within the parcel's valid bounds? 11627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char* eos = reinterpret_cast<const char*>(memchr(str, 0, avail)); 11637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (eos) { 11647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t len = eos - str; 11657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += PAD_SIZE(len+1); 1166d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readCString Setting data pos of %p to %zu", this, mDataPos); 11677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return str; 11687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 11717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectString8 Parcel::readString8() const 11747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int32_t size = readInt32(); 11767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // watch for potential int overflow adding 1 for trailing NUL 11777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (size > 0 && size < INT32_MAX) { 11787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char* str = (const char*)readInplace(size+1); 11797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str) return String8(str, size); 11807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return String8(); 11827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectString16 Parcel::readString16() const 11857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t len; 11877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char16_t* str = readString16Inplace(&len); 11887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str) return String16(str, len); 1189e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("Reading a NULL string not supported here."); 11907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return String16(); 11917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst char16_t* Parcel::readString16Inplace(size_t* outLen) const 11947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int32_t size = readInt32(); 11967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // watch for potential int overflow from size+1 11977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (size >= 0 && size < INT32_MAX) { 11987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *outLen = size; 11997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char16_t* str = (const char16_t*)readInplace((size+1)*sizeof(char16_t)); 12007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str != NULL) { 12017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return str; 12027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 12037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 12047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *outLen = 0; 12057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 12067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 12087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsp<IBinder> Parcel::readStrongBinder() const 12097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 12107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project sp<IBinder> val; 12117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project unflatten_binder(ProcessState::self(), *this, &val); 12127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return val; 12137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 12157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectwp<IBinder> Parcel::readWeakBinder() const 12167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 12177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project wp<IBinder> val; 12187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project unflatten_binder(ProcessState::self(), *this, &val); 12197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return val; 12207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1222837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrickint32_t Parcel::readExceptionCode() const 1223837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick{ 1224837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick int32_t exception_code = readAligned<int32_t>(); 1225d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick if (exception_code == EX_HAS_REPLY_HEADER) { 12261ba24574b2debd3ca012adbbd77f12bed4f2d266Magnus Strandberg int32_t header_start = dataPosition(); 1227d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick int32_t header_size = readAligned<int32_t>(); 1228d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // Skip over fat responses headers. Not used (or propagated) in 1229d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // native code 12301ba24574b2debd3ca012adbbd77f12bed4f2d266Magnus Strandberg setDataPosition(header_start + header_size); 1231d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // And fat response headers are currently only used when there are no 1232d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // exceptions, so return no error: 1233d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick return 0; 1234d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick } 1235837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick return exception_code; 1236837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick} 12375f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 1238a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopiannative_handle* Parcel::readNativeHandle() const 12395f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project{ 12405f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project int numFds, numInts; 12415f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project status_t err; 12425f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project err = readInt32(&numFds); 12435f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return 0; 12445f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project err = readInt32(&numInts); 12455f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return 0; 12465f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 1247a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian native_handle* h = native_handle_create(numFds, numInts); 12485f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project for (int i=0 ; err==NO_ERROR && i<numFds ; i++) { 1249360211f7feff8472e082ed5a0675a0b37da74ce5Rebecca Schultz Zavin h->data[i] = dup(readFileDescriptor()); 12505f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (h->data[i] < 0) err = BAD_VALUE; 12515f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project } 12525f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project err = read(h->data + numFds, sizeof(int)*numInts); 12535f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) { 1254a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian native_handle_close(h); 1255a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian native_handle_delete(h); 12565f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project h = 0; 12575f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project } 12585f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project return h; 12595f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project} 12605f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 12615f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 12627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectint Parcel::readFileDescriptor() const 12637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 12647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat = readObject(true); 12657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat) { 12667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (flat->type) { 12677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_FD: 1268d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Returning file descriptor %ld from parcel %p", flat->handle, this); 12697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return flat->handle; 1270d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn } 12717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 12727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_TYPE; 12737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1275cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// WARNING: This method must stay in sync with writeToParcel() 1276cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// in frameworks/base/core/java/android/os/ParcelFileDescriptor.java 1277cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwoodint Parcel::readParcelFileDescriptor(int& outCommChannel) const { 1278cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood int fd; 1279cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood outCommChannel = -1; 1280cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 1281cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (readInt32() == 0) { 1282cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood fd = -1; 1283cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } else { 1284cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood fd = readFileDescriptor(); 1285cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (fd >= 0 && readInt32() != 0) { 1286cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood outCommChannel = readFileDescriptor(); 1287cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 1288cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 1289cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood return fd; 1290cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood} 1291cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 12925707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownstatus_t Parcel::readBlob(size_t len, ReadableBlob* outBlob) const 12935707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown{ 12945707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int32_t useAshmem; 12955707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status_t status = readInt32(&useAshmem); 12965707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (status) return status; 12975707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 12985707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!useAshmem) { 12996807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("readBlob: read in place"); 13005707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown const void* ptr = readInplace(len); 13015707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!ptr) return BAD_VALUE; 13025707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 13035707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(false /*mapped*/, const_cast<void*>(ptr), len); 13045707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 13055707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 13065707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 13076807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("readBlob: read from ashmem"); 13085707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int fd = readFileDescriptor(); 13095707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (fd == int(BAD_TYPE)) return BAD_VALUE; 13105707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 13115707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown void* ptr = ::mmap(NULL, len, PROT_READ, MAP_SHARED, fd, 0); 13129ea09757fa63ad2a9bea9c846b51c1210d69c79fNarayan Kamath if (ptr == MAP_FAILED) return NO_MEMORY; 13135707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 13145707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(true /*mapped*/, ptr, len); 13155707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 13165707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 13175707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 1318e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t Parcel::read(FlattenableHelperInterface& val) const 131998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian{ 132098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // size 132198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t len = this->readInt32(); 132298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t fd_count = this->readInt32(); 132398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 132498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // payload 1325e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian void const* const buf = this->readInplace(PAD_SIZE(len)); 132698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (buf == NULL) 132798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return BAD_VALUE; 132898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 132998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian int* fds = NULL; 133098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 133198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian fds = new int[fd_count]; 133298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 133398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 133498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian status_t err = NO_ERROR; 133598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian for (size_t i=0 ; i<fd_count && err==NO_ERROR ; i++) { 1336fee99040de000a64f6036a7db172fb7c68d9764aJesse Hall fds[i] = dup(this->readFileDescriptor()); 1337abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang if (fds[i] < 0) { 1338abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang err = BAD_VALUE; 1339fee99040de000a64f6036a7db172fb7c68d9764aJesse Hall ALOGE("dup() failed in Parcel::read, i is %zu, fds[i] is %d, fd_count is %zu, error: %s", 1340fee99040de000a64f6036a7db172fb7c68d9764aJesse Hall i, fds[i], fd_count, strerror(errno)); 1341abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang } 134298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 134398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 134498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (err == NO_ERROR) { 134598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = val.unflatten(buf, len, fds, fd_count); 134698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 134798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 134898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 134998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian delete [] fds; 135098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 135198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 135298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return err; 135398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 13547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst flat_binder_object* Parcel::readObject(bool nullMetaData) const 13557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 13567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t DPOS = mDataPos; 13577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((DPOS+sizeof(flat_binder_object)) <= mDataSize) { 13587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* obj 13597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<const flat_binder_object*>(mData+DPOS); 13607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = DPOS + sizeof(flat_binder_object); 136184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (!nullMetaData && (obj->cookie == 0 && obj->binder == 0)) { 13625f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project // When transferring a NULL object, we don't write it into 13637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // the object list, so we don't want to check for it when 13647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // reading. 1365d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readObject Setting data pos of %p to %zu", this, mDataPos); 13667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return obj; 13677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1368d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Ensure that this object is valid... 137084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* const OBJS = mObjects; 13717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t N = mObjectsSize; 13727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t opos = mNextObjectHint; 1373d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (N > 0) { 1375d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("Parcel %p looking for obj at %zu, hint=%zu", 13767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS, opos); 1377d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Start at the current hint position, looking for an object at 13797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // the current data position. 13807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (opos < N) { 13817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (opos < (N-1) && OBJS[opos] < DPOS) { 13827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project opos++; 13837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 13847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 13857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project opos = N-1; 13867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 13877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (OBJS[opos] == DPOS) { 13887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Found it! 1389d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("Parcel %p found obj %zu at index %zu with forward search", 13907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS, opos); 13917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = opos+1; 1392d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readObject Setting data pos of %p to %zu", this, mDataPos); 13937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return obj; 13947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1395d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Look backwards for it... 13977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (opos > 0 && OBJS[opos] > DPOS) { 13987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project opos--; 13997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (OBJS[opos] == DPOS) { 14017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Found it! 1402d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("Parcel %p found obj %zu at index %zu with backward search", 14037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS, opos); 14047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = opos+1; 1405d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readObject Setting data pos of %p to %zu", this, mDataPos); 14067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return obj; 14077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14096f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGW("Attempt to read object from Parcel %p at offset %zu that is not in the object list", 14107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS); 14117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 14137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::closeFileDescriptors() 14167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t i = mObjectsSize; 14187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (i > 0) { 1419d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Closing file descriptors for %zu objects...", i); 14207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (i > 0) { 14227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project i--; 14237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 14247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(mData+mObjects[i]); 14257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 1426d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Closing fd: %ld", flat->handle); 14277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project close(flat->handle); 14287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 143284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåguintptr_t Parcel::ipcData() const 14337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 143484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return reinterpret_cast<uintptr_t>(mData); 14357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::ipcDataSize() const 14387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return (mDataSize > mDataPos ? mDataSize : mDataPos); 14407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 144284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåguintptr_t Parcel::ipcObjects() const 14437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 144484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return reinterpret_cast<uintptr_t>(mObjects); 14457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::ipcObjectsCount() const 14487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mObjectsSize; 14507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::ipcSetDataReference(const uint8_t* data, size_t dataSize, 145384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg const binder_size_t* objects, size_t objectsCount, release_func relFunc, void* relCookie) 14547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14556f286114ec1d597f3dae987bba6e72dbbc404e32Arve Hjønnevåg binder_size_t minOffset = 0; 14567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeDataNoInit(); 14577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_ERROR; 14587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = const_cast<uint8_t*>(data); 14597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataCapacity = dataSize; 1460d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("setDataReference Setting data size of %p to %lu (pid=%d)", this, mDataSize, getpid()); 14617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = 0; 1462d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("setDataReference Setting data pos of %p to %zu", this, mDataPos); 146384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg mObjects = const_cast<binder_size_t*>(objects); 14647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = mObjectsCapacity = objectsCount; 14657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 14667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner = relFunc; 14677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwnerCookie = relCookie; 1468f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg for (size_t i = 0; i < mObjectsSize; i++) { 14696f286114ec1d597f3dae987bba6e72dbbc404e32Arve Hjønnevåg binder_size_t offset = mObjects[i]; 1470f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg if (offset < minOffset) { 14713bdc5b826803dca10d3625c56de38d6c55d869c8Dan Albert ALOGE("%s: bad object offset %" PRIu64 " < %" PRIu64 "\n", 14726f286114ec1d597f3dae987bba6e72dbbc404e32Arve Hjønnevåg __func__, (uint64_t)offset, (uint64_t)minOffset); 1473f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg mObjectsSize = 0; 1474f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg break; 1475f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg } 1476f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg minOffset = offset + sizeof(flat_binder_object); 1477f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg } 14787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project scanForFds(); 14797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14816f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid Parcel::print(TextOutput& to, uint32_t /*flags*/) const 14827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << "Parcel("; 1484d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 14857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (errorCheck() != NO_ERROR) { 14867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const status_t err = errorCheck(); 14876f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross to << "Error: " << (void*)(intptr_t)err << " \"" << strerror(-err) << "\""; 14887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else if (dataSize() > 0) { 14897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const uint8_t* DATA = data(); 14907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << indent << HexDump(DATA, dataSize()) << dedent; 149184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg const binder_size_t* OBJS = objects(); 14927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t N = objectsCount(); 14937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (size_t i=0; i<N; i++) { 14947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 14957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<const flat_binder_object*>(DATA+OBJS[i]); 14967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << endl << "Object #" << i << " @ " << (void*)OBJS[i] << ": " 14977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project << TypeCode(flat->type & 0x7f7f7f00) 14987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project << " = " << flat->binder; 14997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 15017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << "NULL"; 15027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1503d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << ")"; 15057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::releaseObjects() 15087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 15107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t i = mObjectsSize; 15117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* const data = mData; 151284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* const objects = mObjects; 15137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (i > 0) { 15147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project i--; 15157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 15167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(data+objects[i]); 15177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project release_object(proc, *flat, this); 15187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::acquireObjects() 15227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 15247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t i = mObjectsSize; 15257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* const data = mData; 152684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* const objects = mObjects; 15277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (i > 0) { 15287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project i--; 15297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 15307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(data+objects[i]); 15317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquire_object(proc, *flat, this); 15327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::freeData() 15367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeDataNoInit(); 15387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project initState(); 15397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::freeDataNoInit() 15427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mOwner) { 15447e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: freeing other owner data", this); 1545d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Freeing data ref of %p (pid=%d)", this, getpid()); 15467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner(this, mData, mDataSize, mObjects, mObjectsSize, mOwnerCookie); 15477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 15487e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: freeing allocated data", this); 15497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project releaseObjects(); 15507e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn if (mData) { 15517e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: freeing with %zu capacity", this, mDataCapacity); 1552a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 15537e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize -= mDataCapacity; 15547e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocCount--; 1555a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 15567e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn free(mData); 15577e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn } 15587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mObjects) free(mObjects); 15597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::growData(size_t len) 15637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t newSize = ((mDataSize+len)*3)/2; 15657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return (newSize <= mDataSize) 15667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project ? (status_t) NO_MEMORY 15677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project : continueWrite(newSize); 15687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::restartWrite(size_t desired) 15717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mOwner) { 15737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeData(); 15747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return continueWrite(desired); 15757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1576d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)realloc(mData, desired); 15787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!data && desired > mDataCapacity) { 15797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 15807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 15817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1582d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project releaseObjects(); 1584d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (data) { 15867e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: restart from %zu to %zu capacity", this, mDataCapacity, desired); 1587a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 15887e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize += desired; 15897e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize -= mDataCapacity; 1590a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 15917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 15927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 15937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1594d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataPos = 0; 1596d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("restartWrite Setting data size of %p to %zu", this, mDataSize); 1597d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("restartWrite Setting data pos of %p to %zu", this, mDataPos); 1598d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project free(mObjects); 16007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = NULL; 16017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = mObjectsCapacity = 0; 16027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 16037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = false; 16047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = true; 16058938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn mAllowFds = true; 1606d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 16087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 16097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::continueWrite(size_t desired) 16117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 16127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // If shrinking, first adjust for any objects that appear 16137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // after the new data size. 16147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t objectsSize = mObjectsSize; 16157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired < mDataSize) { 16167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired == 0) { 16177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project objectsSize = 0; 16187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 16197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (objectsSize > 0) { 16207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mObjects[objectsSize-1] < desired) 16217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project break; 16227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project objectsSize--; 16237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1626d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mOwner) { 16287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // If the size is going to zero, just release the owner's data. 16297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired == 0) { 16307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeData(); 16317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 16327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // If there is a different owner, we need to take 16357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // posession. 16367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)malloc(desired); 16377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!data) { 16387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 16397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 16407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 164184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* objects = NULL; 1642d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objectsSize) { 164484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg objects = (binder_size_t*)malloc(objectsSize*sizeof(binder_size_t)); 16457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!objects) { 16463f727c0ea3ad1de512c935c6e80423f2115b46c0Hyejin Kim free(data); 16473f727c0ea3ad1de512c935c6e80423f2115b46c0Hyejin Kim 16487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 16497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 16507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Little hack to only acquire references on objects 16537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // we will be keeping. 16547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t oldObjectsSize = mObjectsSize; 16557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = objectsSize; 16567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquireObjects(); 16577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = oldObjectsSize; 16587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1659d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mData) { 16617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(data, mData, mDataSize < desired ? mDataSize : desired); 16627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objects && mObjects) { 166484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg memcpy(objects, mObjects, objectsSize*sizeof(binder_size_t)); 16657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1666d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Freeing data ref of %p (pid=%d)", this, getpid()); 16677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner(this, mData, mDataSize, mObjects, mObjectsSize, mOwnerCookie); 16687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner = NULL; 16697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16707e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: taking ownership of %zu capacity", this, desired); 1671a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 16727e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize += desired; 16737e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocCount++; 1674a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 16757e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn 16767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 16777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 16787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = (mDataSize < desired) ? mDataSize : desired; 1679d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data size of %p to %zu", this, mDataSize); 16807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 16817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = mObjectsCapacity = objectsSize; 16827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 16837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else if (mData) { 16857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objectsSize < mObjectsSize) { 16867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Need to release refs on any objects we are dropping. 16877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 16887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (size_t i=objectsSize; i<mObjectsSize; i++) { 16897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 16907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(mData+mObjects[i]); 16917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 16927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // will need to rescan because we may have lopped off the only FDs 16937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = false; 16947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project release_object(proc, *flat, this); 16967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 169784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* objects = 169884e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg (binder_size_t*)realloc(mObjects, objectsSize*sizeof(binder_size_t)); 16997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objects) { 17007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 17017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = objectsSize; 17037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 17047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // We own the data, so we can just do a realloc(). 17077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired > mDataCapacity) { 17087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)realloc(mData, desired); 17097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (data) { 17107e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: continue from %zu to %zu capacity", this, mDataCapacity, 17117e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn desired); 1712a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 17137e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize += desired; 17147e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize -= mDataCapacity; 1715a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 17167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 17177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 17187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else if (desired > mDataCapacity) { 17197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 17207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 17217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 172397e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if (mDataSize > desired) { 172497e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn mDataSize = desired; 1725d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data size of %p to %zu", this, mDataSize); 172697e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn } 17277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mDataPos > desired) { 17287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = desired; 1729d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data pos of %p to %zu", this, mDataPos); 17307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1732d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 17337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 17347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // This is the first data. Easy! 17357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)malloc(desired); 17367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!data) { 17377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 17387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 17397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17403f727c0ea3ad1de512c935c6e80423f2115b46c0Hyejin Kim 17417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if(!(mDataCapacity == 0 && mObjects == NULL 17427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project && mObjectsCapacity == 0)) { 17436f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGE("continueWrite: %zu/%p/%zu/%zu", mDataCapacity, mObjects, mObjectsCapacity, desired); 17447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1745d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 17467e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: allocating with %zu capacity", this, desired); 1747a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_lock(&gParcelGlobalAllocSizeLock); 17487e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocSize += desired; 17497e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn gParcelGlobalAllocCount++; 1750a4cff88d80bf1acbdbd063af88ecad83a8b9b7b4Dianne Hackborn pthread_mutex_unlock(&gParcelGlobalAllocSizeLock); 17517e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn 17527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 17537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataPos = 0; 1754d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data size of %p to %zu", this, mDataSize); 1755d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data pos of %p to %zu", this, mDataPos); 17567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 17577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 17607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 17617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::initState() 17637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 17647e790af756d7891cb1cf1374bb283a8fbcbe6b49Dianne Hackborn LOG_ALLOC("Parcel %p: initState", this); 17657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_ERROR; 17667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = 0; 17677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = 0; 17687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = 0; 17697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = 0; 1770d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("initState Setting data size of %p to %zu", this, mDataSize); 1771d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("initState Setting data pos of %p to %zu", this, mDataPos); 17727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = NULL; 17737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = 0; 17747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsCapacity = 0; 17757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 17767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = false; 17777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = true; 17788938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn mAllowFds = true; 17797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner = NULL; 17807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 17817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::scanForFds() const 17837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 17847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project bool hasFds = false; 17857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (size_t i=0; i<mObjectsSize; i++) { 17867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 17877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<const flat_binder_object*>(mData + mObjects[i]); 17887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 17897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project hasFds = true; 17907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project break; 17917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = hasFds; 17947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = true; 17957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 17967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17975707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown// --- Parcel::Blob --- 17985707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17995707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff BrownParcel::Blob::Blob() : 18005707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mMapped(false), mData(NULL), mSize(0) { 18015707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 18025707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 18035707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff BrownParcel::Blob::~Blob() { 18045707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown release(); 18055707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 18065707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 18075707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownvoid Parcel::Blob::release() { 18085707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (mMapped && mData) { 18095707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown ::munmap(mData, mSize); 18105707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 18115707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown clear(); 18125707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 18135707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 18145707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownvoid Parcel::Blob::init(bool mapped, void* data, size_t size) { 18155707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mMapped = mapped; 18165707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mData = data; 18175707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mSize = size; 18185707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 18195707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 18205707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownvoid Parcel::Blob::clear() { 18215707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mMapped = false; 18225707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mData = NULL; 18235707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mSize = 0; 18245707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 18255707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 18267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project}; // namespace android 1827