Parcel.cpp revision 0c1f5cbb8a41d19195ab49dcfeb5caaea2d3fcda
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> 29ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall#include <utils/CallStack.h> 30002e1e58dfe19dd3e49a59c6827cbf51573941a2Mathias Agopian#include <utils/Debug.h> 317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/Log.h> 327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/String8.h> 337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/String16.h> 347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <utils/misc.h> 3598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian#include <utils/Flattenable.h> 365707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown#include <cutils/ashmem.h> 377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 38208059f67ed2dd9fa025e07fcb6954d3cb61c79eMathias Agopian#include <private/binder/binder_module.h> 397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4036273c991b189c5516819f4d5e3f83061c320593Michael Lentine#include <fcntl.h> 41f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg#include <inttypes.h> 427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <stdio.h> 437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <stdlib.h> 447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#include <stdint.h> 455707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown#include <sys/mman.h> 467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#ifndef INT32_MAX 487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define INT32_MAX ((int32_t)(2147483647)) 497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#endif 507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define LOG_REFS(...) 529f760150f6e0f39b9923cfdc875373606839ee00Steve Block//#define LOG_REFS(...) ALOG(LOG_DEBUG, "Parcel", __VA_ARGS__) 537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// --------------------------------------------------------------------------- 557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#define PAD_SIZE(s) (((s)+3)&~3) 577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 58a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick// Note: must be kept in sync with android/os/StrictMode.java's PENALTY_GATHER 590c1f5cbb8a41d19195ab49dcfeb5caaea2d3fcdaJeff Sharkey#define STRICT_MODE_PENALTY_GATHER (0x40 << 16) 60a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick 61d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick// Note: must be kept in sync with android/os/Parcel.java's EX_HAS_REPLY_HEADER 62d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick#define EX_HAS_REPLY_HEADER -128 63d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick 645707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown// Maximum size of a blob to transfer in-place. 655707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownstatic const size_t IN_PLACE_BLOB_LIMIT = 40 * 1024; 665707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// XXX This can be made public if we want to provide 687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// support for typed data. 697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstruct small_flat_data 707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint32_t type; 727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint32_t data; 737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project}; 747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectnamespace android { 767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid acquire_object(const sp<ProcessState>& proc, 787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object& obj, const void* who) 797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (obj.type) { 817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) { 837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p acquiring reference on local %p", who, obj.cookie); 8484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<IBinder*>(obj.cookie)->incStrong(who); 857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_BINDER: 887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) 8984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<RefBase::weakref_type*>(obj.binder)->incWeak(who); 907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: { 927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<IBinder> b = proc->getStrongProxyForHandle(obj.handle); 937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) { 947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p acquiring reference on remote %p", who, b.get()); 957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project b->incStrong(who); 967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_HANDLE: { 1007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const wp<IBinder> b = proc->getWeakProxyForHandle(obj.handle); 1017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) b.get_refs()->incWeak(who); 1027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_FD: { 1057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // intentionally blank -- nothing to do to acquire this, but we do 1067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // recognize it as a legitimate object type. 1077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1116f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGD("Invalid object type 0x%08x", obj.type); 1127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid release_object(const sp<ProcessState>& proc, 1157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object& obj, const void* who) 1167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (obj.type) { 1187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 1197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) { 1207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p releasing reference on local %p", who, obj.cookie); 12184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<IBinder*>(obj.cookie)->decStrong(who); 1227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_BINDER: 1257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (obj.binder) 12684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<RefBase::weakref_type*>(obj.binder)->decWeak(who); 1277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: { 1297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<IBinder> b = proc->getStrongProxyForHandle(obj.handle); 1307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) { 1317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_REFS("Parcel %p releasing reference on remote %p", who, b.get()); 1327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project b->decStrong(who); 1337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_HANDLE: { 1377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const wp<IBinder> b = proc->getWeakProxyForHandle(obj.handle); 1387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (b != NULL) b.get_refs()->decWeak(who); 1397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_FD: { 14284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (obj.cookie != 0) close(obj.handle); 1437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return; 1447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1476f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGE("Invalid object type 0x%08x", obj.type); 1487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectinline static status_t finish_flatten_binder( 1516f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross const sp<IBinder>& /*binder*/, const flat_binder_object& flat, Parcel* out) 1527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return out->writeObject(flat, false); 1547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1566f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossstatus_t flatten_binder(const sp<ProcessState>& /*proc*/, 1577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<IBinder>& binder, Parcel* out) 1587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project flat_binder_object obj; 160d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 1617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 1627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (binder != NULL) { 1637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project IBinder *local = binder->localBinder(); 1647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!local) { 1657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project BpBinder *proxy = binder->remoteBinder(); 1667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (proxy == NULL) { 167e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("null proxy"); 1687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const int32_t handle = proxy ? proxy->handle() : 0; 1707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_HANDLE; 17107fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */ 1727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.handle = handle; 17384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 1747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 1757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 17684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = reinterpret_cast<uintptr_t>(local->getWeakRefs()); 17784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = reinterpret_cast<uintptr_t>(local); 1787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 1807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 18184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = 0; 18284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 1837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 184d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 1857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(binder, obj, out); 1867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 1877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1886f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossstatus_t flatten_binder(const sp<ProcessState>& /*proc*/, 1897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const wp<IBinder>& binder, Parcel* out) 1907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project flat_binder_object obj; 192d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 1937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 1947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (binder != NULL) { 1957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project sp<IBinder> real = binder.promote(); 1967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (real != NULL) { 1977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project IBinder *local = real->localBinder(); 1987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!local) { 1997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project BpBinder *proxy = real->remoteBinder(); 2007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (proxy == NULL) { 201e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("null proxy"); 2027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const int32_t handle = proxy ? proxy->handle() : 0; 2047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_WEAK_HANDLE; 20507fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */ 2067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.handle = handle; 20784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 2087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 2097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_WEAK_BINDER; 21084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = reinterpret_cast<uintptr_t>(binder.get_refs()); 21184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = reinterpret_cast<uintptr_t>(binder.unsafe_get()); 2127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(real, obj, out); 2147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 215d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // XXX How to deal? In order to flatten the given binder, 2177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // we need to probe it for information, which requires a primary 2187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // reference... but we don't have one. 2197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // 2207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // The OpenBinder implementation uses a dynamic_cast<> here, 2217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // but we can't do that with the different reference counting 2227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // implementation we are using. 223e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("Unable to unflatten Binder weak reference!"); 2247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 22584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = 0; 22684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 2277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(NULL, obj, out); 228d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 2307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_BINDER; 23184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.binder = 0; 23284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = 0; 2337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_flatten_binder(NULL, obj, out); 2347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectinline static status_t finish_unflatten_binder( 2386f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross BpBinder* /*proxy*/, const flat_binder_object& /*flat*/, 2396f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross const Parcel& /*in*/) 2407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 2427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 243d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t unflatten_binder(const sp<ProcessState>& proc, 2457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const Parcel& in, sp<IBinder>* out) 2467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat = in.readObject(false); 248d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat) { 2507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (flat->type) { 2517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 25284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg *out = reinterpret_cast<IBinder*>(flat->cookie); 2537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder(NULL, *flat, in); 2547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: 2557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *out = proc->getStrongProxyForHandle(flat->handle); 2567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder( 2577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static_cast<BpBinder*>(out->get()), *flat, in); 258d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn } 2597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_TYPE; 2617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t unflatten_binder(const sp<ProcessState>& proc, 2647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const Parcel& in, wp<IBinder>* out) 2657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat = in.readObject(false); 267d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 2687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat) { 2697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (flat->type) { 2707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_BINDER: 27184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg *out = reinterpret_cast<IBinder*>(flat->cookie); 2727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder(NULL, *flat, in); 2737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_BINDER: 27484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (flat->binder != 0) { 2757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project out->set_object_and_refs( 27684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<IBinder*>(flat->cookie), 27784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<RefBase::weakref_type*>(flat->binder)); 2787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 2797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *out = NULL; 2807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder(NULL, *flat, in); 2827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_HANDLE: 2837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_WEAK_HANDLE: 2847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *out = proc->getWeakProxyForHandle(flat->handle); 2857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finish_unflatten_binder( 2867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static_cast<BpBinder*>(out->unsafe_get()), *flat, in); 2877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 2897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_TYPE; 2907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project// --------------------------------------------------------------------------- 2937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectParcel::Parcel() 2957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 2967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project initState(); 2977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 2987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 2997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectParcel::~Parcel() 3007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeDataNoInit(); 3027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst uint8_t* Parcel::data() const 3057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mData; 3077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataSize() const 3107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return (mDataSize > mDataPos ? mDataSize : mDataPos); 3127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataAvail() const 3157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // TODO: decide what to do about the possibility that this can 3177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // report an available-data size that exceeds a Java int's max 3187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // positive value, causing havoc. Fortunately this will only 3197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // happen if someone constructs a Parcel containing more than two 3207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // gigabytes of data, which on typical phone hardware is simply 3217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // not possible. 3227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return dataSize() - dataPosition(); 3237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataPosition() const 3267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mDataPos; 3287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::dataCapacity() const 3317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mDataCapacity; 3337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::setDataSize(size_t size) 3367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err; 3387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project err = continueWrite(size); 3397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) { 3407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = size; 341d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("setDataSize Setting data size of %p to %zu", this, mDataSize); 3427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 3447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::setDataPosition(size_t pos) const 3477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = pos; 3497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 3507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::setDataCapacity(size_t size) 3537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 35497e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if (size > mDataCapacity) return continueWrite(size); 3557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 3567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::setData(const uint8_t* buffer, size_t len) 3597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = restartWrite(len); 3617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) { 3627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(const_cast<uint8_t*>(data()), buffer, len); 3637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = len; 3647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = false; 3657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 3677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 3687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 36951faf46e2958c57dab46d9420e585319125c7c42Andreas Huberstatus_t Parcel::appendFrom(const Parcel *parcel, size_t offset, size_t len) 3707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 3717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 3727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err; 37351faf46e2958c57dab46d9420e585319125c7c42Andreas Huber const uint8_t *data = parcel->mData; 37484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg const binder_size_t *objects = parcel->mObjects; 3757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t size = parcel->mObjectsSize; 3767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int startPos = mDataPos; 3777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int firstIndex = -1, lastIndex = -2; 3787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (len == 0) { 3807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 3817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // range checks against the source parcel size 3847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((offset > parcel->mDataSize) 3857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project || (len > parcel->mDataSize) 3867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project || (offset + len > parcel->mDataSize)) { 3877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_VALUE; 3887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 3907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Count objects in range 3917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (int i = 0; i < (int) size; i++) { 3927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t off = objects[i]; 3937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((off >= offset) && (off < offset + len)) { 3947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (firstIndex == -1) { 3957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project firstIndex = i; 3967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project lastIndex = i; 3987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 3997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int numObjects = lastIndex - firstIndex + 1; 4017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 40297e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if ((mDataSize+len) > mDataCapacity) { 40397e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn // grow data 40497e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn err = growData(len); 40597e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if (err != NO_ERROR) { 40697e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn return err; 40797e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn } 4087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // append data 4117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(mData + mDataPos, data + offset, len); 4127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += len; 4137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize += len; 4147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4158938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn err = NO_ERROR; 4168938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn 4177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (numObjects > 0) { 4187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // grow objects 4197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mObjectsCapacity < mObjectsSize + numObjects) { 4207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int newSize = ((mObjectsSize + numObjects)*3)/2; 42184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t *objects = 42284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg (binder_size_t*)realloc(mObjects, newSize*sizeof(binder_size_t)); 42384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (objects == (binder_size_t*)0) { 4247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 4257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 4277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsCapacity = newSize; 4287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 429d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 4307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // append and acquire objects 4317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int idx = mObjectsSize; 4327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (int i = firstIndex; i <= lastIndex; i++) { 4337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t off = objects[i] - offset + startPos; 4347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects[idx++] = off; 4357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize++; 4367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4378af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn flat_binder_object* flat 4387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(mData + off); 4397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquire_object(proc, *flat, this); 4407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 4428af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn // If this is a file descriptor, we need to dup it so the 4438af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn // new Parcel now owns its own fd, and can declare that we 4448af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn // officially know we have fds. 4458af0f82d89b029edf7e104a36a9a6e48a92f9e93Dianne Hackborn flat->handle = dup(flat->handle); 44684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg flat->cookie = 1; 4477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = mFdsKnown = true; 4488938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn if (!mAllowFds) { 4498938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn err = FDS_NOT_ALLOWED; 4508938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn } 4517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4558938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn return err; 4568938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn} 4578938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn 4587746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackbornbool Parcel::pushAllowFds(bool allowFds) 4598938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn{ 4608938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn const bool origValue = mAllowFds; 4617746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn if (!allowFds) { 4627746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn mAllowFds = false; 4637746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn } 4648938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn return origValue; 4657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 4667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 4677746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackbornvoid Parcel::restoreAllowFds(bool lastValue) 4687746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn{ 4697746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn mAllowFds = lastValue; 4707746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn} 4717746cc318829358bb2c4dc0a03d40a7856a6d13eDianne Hackborn 4727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectbool Parcel::hasFileDescriptors() const 4737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 4747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!mFdsKnown) { 4757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project scanForFds(); 4767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 4777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mHasFds; 4787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 4797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 480702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick// Write RPC headers. (previously just the interface token) 4817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeInterfaceToken(const String16& interface) 4827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 483a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick writeInt32(IPCThreadState::self()->getStrictModePolicy() | 484a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick STRICT_MODE_PENALTY_GATHER); 4857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // currently the interface identification token is just its name as a string 4867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return writeString16(interface); 4877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 4887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 48983c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopianbool Parcel::checkInterface(IBinder* binder) const 49083c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian{ 491702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick return enforceInterface(binder->getInterfaceDescriptor()); 49283c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian} 49383c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian 494a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrickbool Parcel::enforceInterface(const String16& interface, 49570081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick IPCThreadState* threadState) const 4967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 49770081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick int32_t strictPolicy = readInt32(); 49870081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick if (threadState == NULL) { 49970081a1511955f53bd0ed7f2aec9a1bf09f0f379Brad Fitzpatrick threadState = IPCThreadState::self(); 500a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick } 5015273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick if ((threadState->getLastTransactionBinderFlags() & 5025273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick IBinder::FLAG_ONEWAY) != 0) { 5035273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // For one-way calls, the callee is running entirely 5045273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // disconnected from the caller, so disable StrictMode entirely. 5055273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // Not only does disk/network usage not impact the caller, but 5065273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick // there's no way to commuicate back any violations anyway. 5075273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick threadState->setStrictModePolicy(0); 5085273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick } else { 5095273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick threadState->setStrictModePolicy(strictPolicy); 5105273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick } 51183c0446f27b9542d6c2e724817b2b2d8d1f55085Mathias Agopian const String16 str(readString16()); 5127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str == interface) { 5137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return true; 5147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 515d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGW("**** enforceInterface() expected '%s' but read '%s'", 5167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project String8(interface).string(), String8(str).string()); 5177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return false; 5187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 519702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick} 5207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 52184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevågconst binder_size_t* Parcel::objects() const 5227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mObjects; 5247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::objectsCount() const 5277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mObjectsSize; 5297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::errorCheck() const 5327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mError; 5347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::setError(status_t err) 5377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = err; 5397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::finishWrite(size_t len) 5427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("Finish write of %d\n", len); 5447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += len; 545d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("finishWrite Setting data pos of %p to %zu", this, mDataPos); 5467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mDataPos > mDataSize) { 5477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataPos; 548d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("finishWrite Setting data size of %p to %zu", this, mDataSize); 5497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("New pos=%d, size=%d\n", mDataPos, mDataSize); 5517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 5527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeUnpadded(const void* data, size_t len) 5557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t end = mDataPos + len; 5577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (end < mDataPos) { 5587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // integer overflow 5597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_VALUE; 5607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (end <= mDataCapacity) { 5637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectrestart_write: 5647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(mData+mDataPos, data, len); 5657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finishWrite(len); 5667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = growData(len); 5697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) goto restart_write; 5707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 5717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::write(const void* data, size_t len) 5747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project void* const d = writeInplace(len); 5767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (d) { 5777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(d, data, len); 5787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 5797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mError; 5817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 5827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid* Parcel::writeInplace(size_t len) 5847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 5857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t padded = PAD_SIZE(len); 5867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // sanity check for integer overflow 5887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mDataPos+padded < mDataPos) { 5897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 5907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 5917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((mDataPos+padded) <= mDataCapacity) { 5937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectrestart_write: 5947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("Writing %ld bytes, padded to %ld\n", len, padded); 5957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* const data = mData+mDataPos; 5967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 5977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Need to pad at end? 5987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (padded != len) { 5997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#if BYTE_ORDER == BIG_ENDIAN 6007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static const uint32_t mask[4] = { 6017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 0x00000000, 0xffffff00, 0xffff0000, 0xff000000 6027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project }; 6037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#endif 6047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#if BYTE_ORDER == LITTLE_ENDIAN 6057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project static const uint32_t mask[4] = { 6067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 0x00000000, 0x00ffffff, 0x0000ffff, 0x000000ff 6077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project }; 6087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project#endif 6097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project //printf("Applying pad mask: %p to %p\n", (void*)mask[padded-len], 6107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // *reinterpret_cast<void**>(data+padded-4)); 6117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *reinterpret_cast<uint32_t*>(data+padded-4) &= mask[padded-len]; 6127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 6137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project finishWrite(padded); 6157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return data; 6167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 6177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = growData(padded); 6197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) goto restart_write; 6207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 6217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeInt32(int32_t val) 6247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 62584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 6267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 62741a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza 62841a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stozastatus_t Parcel::writeUint32(uint32_t val) 62941a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza{ 63041a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza return writeAligned(val); 63141a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza} 63241a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza 6335c0106e134366312206702f1b072347e20c90374Marco Nelissenstatus_t Parcel::writeInt32Array(size_t len, const int32_t *val) { 6345c0106e134366312206702f1b072347e20c90374Marco Nelissen if (!val) { 6355c0106e134366312206702f1b072347e20c90374Marco Nelissen return writeAligned(-1); 6365c0106e134366312206702f1b072347e20c90374Marco Nelissen } 6375c0106e134366312206702f1b072347e20c90374Marco Nelissen status_t ret = writeAligned(len); 6385c0106e134366312206702f1b072347e20c90374Marco Nelissen if (ret == NO_ERROR) { 6395c0106e134366312206702f1b072347e20c90374Marco Nelissen ret = write(val, len * sizeof(*val)); 6405c0106e134366312206702f1b072347e20c90374Marco Nelissen } 6415c0106e134366312206702f1b072347e20c90374Marco Nelissen return ret; 6425c0106e134366312206702f1b072347e20c90374Marco Nelissen} 643f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissenstatus_t Parcel::writeByteArray(size_t len, const uint8_t *val) { 644f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen if (!val) { 645f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen return writeAligned(-1); 646f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen } 647f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen status_t ret = writeAligned(len); 648f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen if (ret == NO_ERROR) { 649f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen ret = write(val, len * sizeof(*val)); 650f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen } 651f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen return ret; 652f0190bff38b6c29abbfc4a877442f71fc3d7dad8Marco Nelissen} 6537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeInt64(int64_t val) 6557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 65684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 6577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 659f683e0163a84d93448b9388126902242367cd961Serban Constantinescustatus_t Parcel::writePointer(uintptr_t val) 660f683e0163a84d93448b9388126902242367cd961Serban Constantinescu{ 66184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return writeAligned<binder_uintptr_t>(val); 662f683e0163a84d93448b9388126902242367cd961Serban Constantinescu} 663f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 6647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeFloat(float val) 6657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 66684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 6677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 669cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#if defined(__mips__) && defined(__mips_hard_float) 670cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 671cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leungstatus_t Parcel::writeDouble(double val) 672cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung{ 673cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung union { 674cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung double d; 675cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung unsigned long long ll; 676cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung } u; 677cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung u.d = val; 678cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return writeAligned(u.ll); 679cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung} 680cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 681cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#else 682cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 6837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeDouble(double val) 6847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 68584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return writeAligned(val); 68684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 6877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 688cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#endif 689cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 6907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeCString(const char* str) 6917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 6927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return write(str, strlen(str)+1); 6937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 6947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 6957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeString8(const String8& str) 6967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 6977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = writeInt32(str.bytes()); 698d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera // only write string if its length is more than zero characters, 699d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera // as readString8 will only read if the length field is non-zero. 700d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera // this is slightly different from how writeString16 works. 701d1dff8d4d47a5f9142a22b11950adc55ea2b36dfPravat Dalbehera if (str.bytes() > 0 && err == NO_ERROR) { 7027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project err = write(str.string(), str.bytes()+1); 7037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 7047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 7057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeString16(const String16& str) 7087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return writeString16(str.string(), str.size()); 7107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeString16(const char16_t* str, size_t len) 7137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str == NULL) return writeInt32(-1); 715d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 7167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project status_t err = writeInt32(len); 7177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err == NO_ERROR) { 7187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project len *= sizeof(char16_t); 7197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)writeInplace(len+sizeof(char16_t)); 7207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (data) { 7217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(data, str, len); 7227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *reinterpret_cast<char16_t*>(data+len) = 0; 7237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 7247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 7257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project err = mError; 7267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 7277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return err; 7287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeStrongBinder(const sp<IBinder>& val) 7317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return flatten_binder(ProcessState::self(), val, this); 7337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeWeakBinder(const wp<IBinder>& val) 7367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return flatten_binder(ProcessState::self(), val, this); 7387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 740a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopianstatus_t Parcel::writeNativeHandle(const native_handle* handle) 7415f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project{ 7421d0a95b12a9194f64dd436224ec3bf8e0622d678Mathias Agopian if (!handle || handle->version != sizeof(native_handle)) 7435f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project return BAD_TYPE; 7445f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 7455f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project status_t err; 746a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = writeInt32(handle->numFds); 7475f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return err; 748edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 749a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = writeInt32(handle->numInts); 7505f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return err; 751edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 752a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian for (int i=0 ; err==NO_ERROR && i<handle->numFds ; i++) 753a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = writeDupFileDescriptor(handle->data[i]); 754edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 755edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) { 7569d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("write native handle, write dup fd failed"); 757edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 758edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 759a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian err = write(handle->data + handle->numFds, sizeof(int)*handle->numInts); 7605f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project return err; 7615f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project} 7625f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 76393ff1f985e233fe04412a65041e977c9f0c21f5bJeff Brownstatus_t Parcel::writeFileDescriptor(int fd, bool takeOwnership) 7647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 7657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project flat_binder_object obj; 7667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.type = BINDER_TYPE_FD; 7677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 76807fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */ 7697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project obj.handle = fd; 77084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg obj.cookie = takeOwnership ? 1 : 0; 7717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return writeObject(obj, true); 7727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 7737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 7747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeDupFileDescriptor(int fd) 7757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 776d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown int dupFd = dup(fd); 777ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall 778ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall { // Temporary extra debug validation for b/17477219: a Parcel recipient is 779ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall // getting a positive but invalid fd unexpectedly. Trying to track down 780ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall // where it's coming from. 781ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall int dupErrno = dupFd < 0 ? errno : 0; 782ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall int fdFlags = fcntl(fd, F_GETFD); 783ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall int fdFlagsErrno = fdFlags == -1 ? errno : 0; 784ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall int dupFlags = fcntl(dupFd, F_GETFD); 785ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall int dupFlagsErrno = dupFlags == -1 ? errno : 0; 786ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall if (dupFd < 0 || fdFlags == -1 || dupFlags == -1) { 787ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall ALOGE("Parcel::writeDupFileDescriptor failed:\n" 788ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall " fd=%d flags=%d err=%d(%s)\n" 789ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall " dupFd=%d dupErr=%d(%s) flags=%d err=%d(%s)", 790ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall fd, fdFlags, fdFlagsErrno, strerror(fdFlagsErrno), 791ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall dupFd, dupErrno, strerror(dupErrno), 792ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall dupFlags, dupFlagsErrno, strerror(dupFlagsErrno)); 793ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall if (fd < 0 || fdFlags == -1) { 794ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall CallStack(LOG_TAG); 795ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall } 796ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall return -errno; 797ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall } 798ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall } 799ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall 800d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown if (dupFd < 0) { 801d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown return -errno; 802d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown } 803d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown status_t err = writeFileDescriptor(dupFd, true /*takeOwnership*/); 804d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown if (err) { 805d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown close(dupFd); 806d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown } 807d341c7178fffc7ad5b57645c2bcf5a395ca95591Jeff Brown return err; 8087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 8097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 810cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// WARNING: This method must stay in sync with 811cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// Parcelable.Creator<ParcelFileDescriptor> CREATOR 812cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// in frameworks/base/core/java/android/os/ParcelFileDescriptor.java 813cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwoodstatus_t Parcel::writeParcelFileDescriptor(int fd, int commChannel) { 814cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status_t status; 815cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 816cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (fd < 0) { 817cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(0); // ParcelFileDescriptor is null 818cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 819cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } else { 820cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(1); // ParcelFileDescriptor is not null 821cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 822cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeDupFileDescriptor(fd); 823cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 824cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (commChannel < 0) { 825cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(0); // commChannel is null 826cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 827cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } else { 828cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeInt32(1); // commChannel is not null 829cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (status) return status; 830cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood status = writeDupFileDescriptor(commChannel); 831cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 832cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 833cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood return status; 834cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood} 835cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 8365707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownstatus_t Parcel::writeBlob(size_t len, WritableBlob* outBlob) 8375707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown{ 8385707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status_t status; 8395707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8405707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!mAllowFds || len <= IN_PLACE_BLOB_LIMIT) { 8416807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("writeBlob: write in place"); 8425707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status = writeInt32(0); 8435707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (status) return status; 8445707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8455707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown void* ptr = writeInplace(len); 8465707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!ptr) return NO_MEMORY; 8475707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8485707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(false /*mapped*/, ptr, len); 8495707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 8505707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8515707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8526807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("writeBlob: write to ashmem"); 8535707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int fd = ashmem_create_region("Parcel Blob", len); 8545707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (fd < 0) return NO_MEMORY; 8555707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 8565707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int result = ashmem_set_prot_region(fd, PROT_READ | PROT_WRITE); 8575707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (result < 0) { 858ec4e0063a1c5cc6e01472cc2a9d27609ce3827d7Jeff Brown status = result; 8595707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } else { 8605707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown void* ptr = ::mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); 8615707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (ptr == MAP_FAILED) { 8625707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status = -errno; 8635707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } else { 8645707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown result = ashmem_set_prot_region(fd, PROT_READ); 8655707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (result < 0) { 866ec4e0063a1c5cc6e01472cc2a9d27609ce3827d7Jeff Brown status = result; 8675707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } else { 8685707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status = writeInt32(1); 8695707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!status) { 87093ff1f985e233fe04412a65041e977c9f0c21f5bJeff Brown status = writeFileDescriptor(fd, true /*takeOwnership*/); 8715707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!status) { 8725707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(true /*mapped*/, ptr, len); 8735707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 8745707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8755707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8765707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8775707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8785707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown ::munmap(ptr, len); 8795707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 8805707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown ::close(fd); 8815707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return status; 8825707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 8835707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 884e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t Parcel::write(const FlattenableHelperInterface& val) 88598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian{ 88698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian status_t err; 88798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 88898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // size if needed 889e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian const size_t len = val.getFlattenedSize(); 890e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian const size_t fd_count = val.getFdCount(); 89198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 89298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = this->writeInt32(len); 89398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (err) return err; 89498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 89598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = this->writeInt32(fd_count); 89698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (err) return err; 89798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 89898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // payload 899e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian void* const buf = this->writeInplace(PAD_SIZE(len)); 90098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (buf == NULL) 90198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return BAD_VALUE; 90298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 90398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian int* fds = NULL; 90498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 90598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian fds = new int[fd_count]; 90698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 90798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 90898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = val.flatten(buf, len, fds, fd_count); 90998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian for (size_t i=0 ; i<fd_count && err==NO_ERROR ; i++) { 91098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = this->writeDupFileDescriptor( fds[i] ); 91198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 91298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 91398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 91498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian delete [] fds; 91598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 91698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 91798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return err; 91898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 91998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 9207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::writeObject(const flat_binder_object& val, bool nullMetaData) 9217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const bool enoughData = (mDataPos+sizeof(val)) <= mDataCapacity; 9237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const bool enoughObjects = mObjectsSize < mObjectsCapacity; 9247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (enoughData && enoughObjects) { 9257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectrestart_write: 9267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *reinterpret_cast<flat_binder_object*>(mData+mDataPos) = val; 927d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 9287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Need to write meta-data? 92984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (nullMetaData || val.binder != 0) { 9307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects[mObjectsSize] = mDataPos; 9317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquire_object(ProcessState::self(), val, this); 9327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize++; 9337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 934d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 9357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // remember if it's a file descriptor 9367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (val.type == BINDER_TYPE_FD) { 9378938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn if (!mAllowFds) { 9388938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn return FDS_NOT_ALLOWED; 9398938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn } 9407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = mFdsKnown = true; 9417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return finishWrite(sizeof(flat_binder_object)); 9447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!enoughData) { 9477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const status_t err = growData(sizeof(val)); 9487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (err != NO_ERROR) return err; 9497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!enoughObjects) { 9517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t newSize = ((mObjectsSize+2)*3)/2; 95284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* objects = (binder_size_t*)realloc(mObjects, newSize*sizeof(binder_size_t)); 9537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objects == NULL) return NO_MEMORY; 9547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 9557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsCapacity = newSize; 9567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 957d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 9587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project goto restart_write; 9597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 961837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrickstatus_t Parcel::writeNoException() 962837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick{ 963837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick return writeInt32(0); 964837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick} 965837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick 9666f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid Parcel::remove(size_t /*start*/, size_t /*amt*/) 9677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project LOG_ALWAYS_FATAL("Parcel::remove() not yet implemented!"); 9697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::read(void* outData, size_t len) const 9727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9735b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root if ((mDataPos+PAD_SIZE(len)) >= mDataPos && (mDataPos+PAD_SIZE(len)) <= mDataSize 9745b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root && len <= PAD_SIZE(len)) { 9757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(outData, mData+mDataPos, len); 9767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += PAD_SIZE(len); 977d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("read Setting data pos of %p to %zu", this, mDataPos); 9787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 9797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NOT_ENOUGH_DATA; 9817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 9837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst void* Parcel::readInplace(size_t len) const 9847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 9855b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root if ((mDataPos+PAD_SIZE(len)) >= mDataPos && (mDataPos+PAD_SIZE(len)) <= mDataSize 9865b61ad2cda8ec8ab634ce02f388bb2d3c5ab048dKenny Root && len <= PAD_SIZE(len)) { 9877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const void* data = mData+mDataPos; 9887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += PAD_SIZE(len); 989d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readInplace Setting data pos of %p to %zu", this, mDataPos); 9907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return data; 9917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 9927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 9937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 9947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 99584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Hubertemplate<class T> 99684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::readAligned(T *pArg) const { 99784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE(sizeof(T)) == sizeof(T)); 99884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 99984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if ((mDataPos+sizeof(T)) <= mDataSize) { 10007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const void* data = mData+mDataPos; 100184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber mDataPos += sizeof(T); 100284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber *pArg = *reinterpret_cast<const T*>(data); 10037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 10047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 10057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NOT_ENOUGH_DATA; 10067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 10077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 100984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Hubertemplate<class T> 101084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas HuberT Parcel::readAligned() const { 101184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber T result; 101284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if (readAligned(&result) != NO_ERROR) { 101384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber result = 0; 101484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber } 101584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 101684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return result; 101784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 101884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 101984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Hubertemplate<class T> 102084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::writeAligned(T val) { 102184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE(sizeof(T)) == sizeof(T)); 102284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 102384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if ((mDataPos+sizeof(val)) <= mDataCapacity) { 102484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberrestart_write: 102584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber *reinterpret_cast<T*>(mData+mDataPos) = val; 102684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return finishWrite(sizeof(val)); 102784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber } 102884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 102984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber status_t err = growData(sizeof(val)); 103084a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber if (err == NO_ERROR) goto restart_write; 103184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return err; 103284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 103384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 103484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::readInt32(int32_t *pArg) const 103584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber{ 103684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 103784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 103884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 10397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectint32_t Parcel::readInt32() const 10407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 104184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<int32_t>(); 10427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 104441a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stozastatus_t Parcel::readUint32(uint32_t *pArg) const 104541a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza{ 104641a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza return readAligned(pArg); 104741a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza} 104841a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza 104941a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stozauint32_t Parcel::readUint32() const 105041a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza{ 105141a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza return readAligned<uint32_t>(); 105241a0f2f86c0ca7d2fef50aef6215987f445a7231Dan Stoza} 10537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::readInt64(int64_t *pArg) const 10557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 105684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 10577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectint64_t Parcel::readInt64() const 10617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 106284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<int64_t>(); 10637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1065f683e0163a84d93448b9388126902242367cd961Serban Constantinescustatus_t Parcel::readPointer(uintptr_t *pArg) const 1066f683e0163a84d93448b9388126902242367cd961Serban Constantinescu{ 106784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg status_t ret; 106884e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_uintptr_t ptr; 106984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg ret = readAligned(&ptr); 107084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (!ret) 107184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg *pArg = ptr; 107284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return ret; 1073f683e0163a84d93448b9388126902242367cd961Serban Constantinescu} 1074f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 1075f683e0163a84d93448b9388126902242367cd961Serban Constantinescuuintptr_t Parcel::readPointer() const 1076f683e0163a84d93448b9388126902242367cd961Serban Constantinescu{ 107784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return readAligned<binder_uintptr_t>(); 1078f683e0163a84d93448b9388126902242367cd961Serban Constantinescu} 1079f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 1080f683e0163a84d93448b9388126902242367cd961Serban Constantinescu 10817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::readFloat(float *pArg) const 10827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 108384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 10847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 10877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectfloat Parcel::readFloat() const 10887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 108984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<float>(); 10907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 10917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1092cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#if defined(__mips__) && defined(__mips_hard_float) 1093cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 10947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::readDouble(double *pArg) const 10957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 1096cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung union { 1097cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung double d; 1098cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung unsigned long long ll; 1099cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung } u; 11002c68d380c9ef765a7d46e5a4735f39e6c27849f2Narayan Kamath u.d = 0; 1101cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung status_t status; 1102cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung status = readAligned(&u.ll); 1103cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung *pArg = u.d; 1104cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return status; 11057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1107cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leungdouble Parcel::readDouble() const 1108cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung{ 1109cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung union { 1110cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung double d; 1111cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung unsigned long long ll; 1112cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung } u; 1113cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung u.ll = readAligned<unsigned long long>(); 1114cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return u.d; 1115cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung} 1116cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 1117cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#else 1118cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 1119cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leungstatus_t Parcel::readDouble(double *pArg) const 1120cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung{ 1121cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung return readAligned(pArg); 1122cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung} 11237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectdouble Parcel::readDouble() const 11257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 112684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<double>(); 112784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 112884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 1129cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung#endif 1130cc1a4bb1e1da3f2f38bdaf1f76348c7bc9fb6adbDouglas Leung 113184a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberstatus_t Parcel::readIntPtr(intptr_t *pArg) const 113284a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber{ 113384a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned(pArg); 113484a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber} 113584a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 113684a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber 113784a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huberintptr_t Parcel::readIntPtr() const 113884a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber{ 113984a6d041e2c69d4d0b69269a0b59e725c9f119a3Andreas Huber return readAligned<intptr_t>(); 11407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst char* Parcel::readCString() const 11447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t avail = mDataSize-mDataPos; 11467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (avail > 0) { 11477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char* str = reinterpret_cast<const char*>(mData+mDataPos); 11487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // is the string's trailing NUL within the parcel's valid bounds? 11497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char* eos = reinterpret_cast<const char*>(memchr(str, 0, avail)); 11507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (eos) { 11517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t len = eos - str; 11527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos += PAD_SIZE(len+1); 1153d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readCString Setting data pos of %p to %zu", this, mDataPos); 11547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return str; 11557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 11587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectString8 Parcel::readString8() const 11617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int32_t size = readInt32(); 11637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // watch for potential int overflow adding 1 for trailing NUL 11647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (size > 0 && size < INT32_MAX) { 11657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char* str = (const char*)readInplace(size+1); 11667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str) return String8(str, size); 11677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return String8(); 11697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source ProjectString16 Parcel::readString16() const 11727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t len; 11747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char16_t* str = readString16Inplace(&len); 11757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str) return String16(str, len); 1176e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("Reading a NULL string not supported here."); 11777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return String16(); 11787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst char16_t* Parcel::readString16Inplace(size_t* outLen) const 11817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project int32_t size = readInt32(); 11837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // watch for potential int overflow from size+1 11847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (size >= 0 && size < INT32_MAX) { 11857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *outLen = size; 11867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const char16_t* str = (const char16_t*)readInplace((size+1)*sizeof(char16_t)); 11877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (str != NULL) { 11887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return str; 11897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 11917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project *outLen = 0; 11927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 11937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 11947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 11957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsp<IBinder> Parcel::readStrongBinder() const 11967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 11977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project sp<IBinder> val; 11987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project unflatten_binder(ProcessState::self(), *this, &val); 11997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return val; 12007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 12027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectwp<IBinder> Parcel::readWeakBinder() const 12037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 12047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project wp<IBinder> val; 12057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project unflatten_binder(ProcessState::self(), *this, &val); 12067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return val; 12077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1209837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrickint32_t Parcel::readExceptionCode() const 1210837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick{ 1211837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick int32_t exception_code = readAligned<int32_t>(); 1212d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick if (exception_code == EX_HAS_REPLY_HEADER) { 12131ba24574b2debd3ca012adbbd77f12bed4f2d266Magnus Strandberg int32_t header_start = dataPosition(); 1214d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick int32_t header_size = readAligned<int32_t>(); 1215d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // Skip over fat responses headers. Not used (or propagated) in 1216d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // native code 12171ba24574b2debd3ca012adbbd77f12bed4f2d266Magnus Strandberg setDataPosition(header_start + header_size); 1218d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // And fat response headers are currently only used when there are no 1219d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick // exceptions, so return no error: 1220d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick return 0; 1221d36f4a5f130be7f7b29a8b63cedbc8edfa56db96Brad Fitzpatrick } 1222837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick return exception_code; 1223837a0d0fb2c3fba8082d47d04cb6120af1eb9a54Brad Fitzpatrick} 12245f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 1225a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopiannative_handle* Parcel::readNativeHandle() const 12265f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project{ 12275f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project int numFds, numInts; 12285f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project status_t err; 12295f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project err = readInt32(&numFds); 12305f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return 0; 12315f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project err = readInt32(&numInts); 12325f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) return 0; 12335f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 1234a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian native_handle* h = native_handle_create(numFds, numInts); 12355f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project for (int i=0 ; err==NO_ERROR && i<numFds ; i++) { 1236360211f7feff8472e082ed5a0675a0b37da74ce5Rebecca Schultz Zavin h->data[i] = dup(readFileDescriptor()); 12375f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (h->data[i] < 0) err = BAD_VALUE; 12385f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project } 12395f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project err = read(h->data + numFds, sizeof(int)*numInts); 12405f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project if (err != NO_ERROR) { 1241a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian native_handle_close(h); 1242a47f02afb1e1f2c4abd9379c13903a5dde89d354Mathias Agopian native_handle_delete(h); 12435f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project h = 0; 12445f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project } 12455f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project return h; 12465f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project} 12475f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 12485f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project 12497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectint Parcel::readFileDescriptor() const 12507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 12517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat = readObject(true); 12527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat) { 12537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project switch (flat->type) { 12547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project case BINDER_TYPE_FD: 1255d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Returning file descriptor %ld from parcel %p", flat->handle, this); 12567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return flat->handle; 1257d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn } 12587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 12597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return BAD_TYPE; 12607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 12617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 1262cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// WARNING: This method must stay in sync with writeToParcel() 1263cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood// in frameworks/base/core/java/android/os/ParcelFileDescriptor.java 1264cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwoodint Parcel::readParcelFileDescriptor(int& outCommChannel) const { 1265cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood int fd; 1266cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood outCommChannel = -1; 1267cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 1268cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (readInt32() == 0) { 1269cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood fd = -1; 1270cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } else { 1271cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood fd = readFileDescriptor(); 1272cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood if (fd >= 0 && readInt32() != 0) { 1273cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood outCommChannel = readFileDescriptor(); 1274cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 1275cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood } 1276cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood return fd; 1277cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood} 1278cbe36fe1ec21e22e6649d47144c91260ba51d753Mike Lockwood 12795707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownstatus_t Parcel::readBlob(size_t len, ReadableBlob* outBlob) const 12805707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown{ 12815707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int32_t useAshmem; 12825707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown status_t status = readInt32(&useAshmem); 12835707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (status) return status; 12845707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 12855707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!useAshmem) { 12866807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("readBlob: read in place"); 12875707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown const void* ptr = readInplace(len); 12885707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (!ptr) return BAD_VALUE; 12895707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 12905707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(false /*mapped*/, const_cast<void*>(ptr), len); 12915707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 12925707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 12935707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 12946807e59e0ff943cc6225d46e3c33a8a7eae9b3d7Steve Block ALOGV("readBlob: read from ashmem"); 12955707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown int fd = readFileDescriptor(); 12965707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (fd == int(BAD_TYPE)) return BAD_VALUE; 12975707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 12985707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown void* ptr = ::mmap(NULL, len, PROT_READ, MAP_SHARED, fd, 0); 12999ea09757fa63ad2a9bea9c846b51c1210d69c79fNarayan Kamath if (ptr == MAP_FAILED) return NO_MEMORY; 13005707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 13015707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown outBlob->init(true /*mapped*/, ptr, len); 13025707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown return NO_ERROR; 13035707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 13045707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 1305e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t Parcel::read(FlattenableHelperInterface& val) const 130698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian{ 130798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // size 130898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t len = this->readInt32(); 130998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t fd_count = this->readInt32(); 131098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 131198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // payload 1312e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian void const* const buf = this->readInplace(PAD_SIZE(len)); 131398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (buf == NULL) 131498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return BAD_VALUE; 131598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 131698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian int* fds = NULL; 131798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 131898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian fds = new int[fd_count]; 131998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 132098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 132198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian status_t err = NO_ERROR; 132298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian for (size_t i=0 ; i<fd_count && err==NO_ERROR ; i++) { 132336273c991b189c5516819f4d5e3f83061c320593Michael Lentine int oldfd = this->readFileDescriptor(); 132436273c991b189c5516819f4d5e3f83061c320593Michael Lentine fds[i] = dup(oldfd); 1325abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang if (fds[i] < 0) { 132636273c991b189c5516819f4d5e3f83061c320593Michael Lentine int dupErrno = errno; 1327abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang err = BAD_VALUE; 132836273c991b189c5516819f4d5e3f83061c320593Michael Lentine int flags = fcntl(oldfd, F_GETFD); 132936273c991b189c5516819f4d5e3f83061c320593Michael Lentine int fcntlErrno = errno; 133036273c991b189c5516819f4d5e3f83061c320593Michael Lentine const flat_binder_object* flat = readObject(true); 133136273c991b189c5516819f4d5e3f83061c320593Michael Lentine ALOGE("dup failed in Parcel::read, fd %zu of %zu\n" 133236273c991b189c5516819f4d5e3f83061c320593Michael Lentine " dup(%d) = %d [errno: %d (%s)]\n" 133336273c991b189c5516819f4d5e3f83061c320593Michael Lentine " fcntl(%d, F_GETFD) = %d [errno: %d (%s)]\n" 133436273c991b189c5516819f4d5e3f83061c320593Michael Lentine " flat %p type %d", 133536273c991b189c5516819f4d5e3f83061c320593Michael Lentine i, fd_count, 133636273c991b189c5516819f4d5e3f83061c320593Michael Lentine oldfd, fds[i], dupErrno, strerror(dupErrno), 133736273c991b189c5516819f4d5e3f83061c320593Michael Lentine oldfd, flags, fcntlErrno, strerror(fcntlErrno), 133836273c991b189c5516819f4d5e3f83061c320593Michael Lentine flat, flat ? flat->type : 0); 1339ccf851f108c008d086b7f3c3923d60d385985e71Jesse Hall CallStack(LOG_TAG); 1340abf8a2c608cb5f0d1523ab7d0c56e0da8a09cc87Jun Jiang } 134198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 134298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 134398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (err == NO_ERROR) { 134498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian err = val.unflatten(buf, len, fds, fd_count); 134598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 134698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 134798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (fd_count) { 134898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian delete [] fds; 134998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 135098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 135198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return err; 135298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 13537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectconst flat_binder_object* Parcel::readObject(bool nullMetaData) const 13547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 13557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t DPOS = mDataPos; 13567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if ((DPOS+sizeof(flat_binder_object)) <= mDataSize) { 13577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* obj 13587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<const flat_binder_object*>(mData+DPOS); 13597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = DPOS + sizeof(flat_binder_object); 136084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (!nullMetaData && (obj->cookie == 0 && obj->binder == 0)) { 13615f78a48bb8f7714ee231fca67d60fad77bc1cad9The Android Open Source Project // When transferring a NULL object, we don't write it into 13627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // the object list, so we don't want to check for it when 13637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // reading. 1364d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readObject Setting data pos of %p to %zu", this, mDataPos); 13657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return obj; 13667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1367d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Ensure that this object is valid... 136984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* const OBJS = mObjects; 13707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t N = mObjectsSize; 13717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t opos = mNextObjectHint; 1372d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (N > 0) { 1374d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("Parcel %p looking for obj at %zu, hint=%zu", 13757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS, opos); 1376d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Start at the current hint position, looking for an object at 13787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // the current data position. 13797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (opos < N) { 13807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (opos < (N-1) && OBJS[opos] < DPOS) { 13817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project opos++; 13827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 13837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 13847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project opos = N-1; 13857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 13867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (OBJS[opos] == DPOS) { 13877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Found it! 1388d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("Parcel %p found obj %zu at index %zu with forward search", 13897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS, opos); 13907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = opos+1; 1391d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readObject Setting data pos of %p to %zu", this, mDataPos); 13927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return obj; 13937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1394d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 13957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Look backwards for it... 13967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (opos > 0 && OBJS[opos] > DPOS) { 13977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project opos--; 13987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 13997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (OBJS[opos] == DPOS) { 14007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Found it! 1401d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("Parcel %p found obj %zu at index %zu with backward search", 14027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS, opos); 14037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = opos+1; 1404d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("readObject Setting data pos of %p to %zu", this, mDataPos); 14057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return obj; 14067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14086f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGW("Attempt to read object from Parcel %p at offset %zu that is not in the object list", 14097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project this, DPOS); 14107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NULL; 14127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::closeFileDescriptors() 14157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t i = mObjectsSize; 14177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (i > 0) { 1418d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Closing file descriptors for %zu objects...", i); 14197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (i > 0) { 14217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project i--; 14227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 14237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(mData+mObjects[i]); 14247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 1425d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Closing fd: %ld", flat->handle); 14267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project close(flat->handle); 14277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 143184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåguintptr_t Parcel::ipcData() const 14327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 143384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return reinterpret_cast<uintptr_t>(mData); 14347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::ipcDataSize() const 14377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return (mDataSize > mDataPos ? mDataSize : mDataPos); 14397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 144184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåguintptr_t Parcel::ipcObjects() const 14427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 144384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg return reinterpret_cast<uintptr_t>(mObjects); 14447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectsize_t Parcel::ipcObjectsCount() const 14477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return mObjectsSize; 14497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::ipcSetDataReference(const uint8_t* data, size_t dataSize, 145284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg const binder_size_t* objects, size_t objectsCount, release_func relFunc, void* relCookie) 14537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14546f286114ec1d597f3dae987bba6e72dbbc404e32Arve Hjønnevåg binder_size_t minOffset = 0; 14557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeDataNoInit(); 14567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_ERROR; 14577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = const_cast<uint8_t*>(data); 14587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataCapacity = dataSize; 1459d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("setDataReference Setting data size of %p to %lu (pid=%d)", this, mDataSize, getpid()); 14607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = 0; 1461d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("setDataReference Setting data pos of %p to %zu", this, mDataPos); 146284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg mObjects = const_cast<binder_size_t*>(objects); 14637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = mObjectsCapacity = objectsCount; 14647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 14657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner = relFunc; 14667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwnerCookie = relCookie; 1467f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg for (size_t i = 0; i < mObjectsSize; i++) { 14686f286114ec1d597f3dae987bba6e72dbbc404e32Arve Hjønnevåg binder_size_t offset = mObjects[i]; 1469f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg if (offset < minOffset) { 14703bdc5b826803dca10d3625c56de38d6c55d869c8Dan Albert ALOGE("%s: bad object offset %" PRIu64 " < %" PRIu64 "\n", 14716f286114ec1d597f3dae987bba6e72dbbc404e32Arve Hjønnevåg __func__, (uint64_t)offset, (uint64_t)minOffset); 1472f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg mObjectsSize = 0; 1473f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg break; 1474f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg } 1475f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg minOffset = offset + sizeof(flat_binder_object); 1476f50b9eaaeeaeae16981f11b05d3f3a6fb0dea30dArve Hjønnevåg } 14777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project scanForFds(); 14787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 14797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 14806f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid Parcel::print(TextOutput& to, uint32_t /*flags*/) const 14817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 14827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << "Parcel("; 1483d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 14847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (errorCheck() != NO_ERROR) { 14857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const status_t err = errorCheck(); 14866f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross to << "Error: " << (void*)(intptr_t)err << " \"" << strerror(-err) << "\""; 14877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else if (dataSize() > 0) { 14887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const uint8_t* DATA = data(); 14897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << indent << HexDump(DATA, dataSize()) << dedent; 149084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg const binder_size_t* OBJS = objects(); 14917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const size_t N = objectsCount(); 14927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (size_t i=0; i<N; i++) { 14937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 14947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<const flat_binder_object*>(DATA+OBJS[i]); 14957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << endl << "Object #" << i << " @ " << (void*)OBJS[i] << ": " 14967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project << TypeCode(flat->type & 0x7f7f7f00) 14977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project << " = " << flat->binder; 14987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 14997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 15007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << "NULL"; 15017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1502d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project to << ")"; 15047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::releaseObjects() 15077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 15097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t i = mObjectsSize; 15107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* const data = mData; 151184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* const objects = mObjects; 15127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (i > 0) { 15137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project i--; 15147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 15157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(data+objects[i]); 15167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project release_object(proc, *flat, this); 15177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::acquireObjects() 15217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 15237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t i = mObjectsSize; 15247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* const data = mData; 152584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* const objects = mObjects; 15267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (i > 0) { 15277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project i--; 15287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 15297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(data+objects[i]); 15307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquire_object(proc, *flat, this); 15317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::freeData() 15357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeDataNoInit(); 15377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project initState(); 15387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::freeDataNoInit() 15417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mOwner) { 1543d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Freeing data ref of %p (pid=%d)", this, getpid()); 15447c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner(this, mData, mDataSize, mObjects, mObjectsSize, mOwnerCookie); 15457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 15467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project releaseObjects(); 15477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mData) free(mData); 15487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mObjects) free(mObjects); 15497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 15507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::growData(size_t len) 15537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t newSize = ((mDataSize+len)*3)/2; 15557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return (newSize <= mDataSize) 15567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project ? (status_t) NO_MEMORY 15577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project : continueWrite(newSize); 15587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::restartWrite(size_t desired) 15617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mOwner) { 15637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeData(); 15647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return continueWrite(desired); 15657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1566d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)realloc(mData, desired); 15687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!data && desired > mDataCapacity) { 15697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 15707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 15717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1572d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project releaseObjects(); 1574d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (data) { 15767c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 15777c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 15787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1579d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataPos = 0; 1581d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("restartWrite Setting data size of %p to %zu", this, mDataSize); 1582d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("restartWrite Setting data pos of %p to %zu", this, mDataPos); 1583d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project free(mObjects); 15857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = NULL; 15867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = mObjectsCapacity = 0; 15877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 15887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = false; 15897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = true; 15908938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn mAllowFds = true; 1591d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 15927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 15937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 15947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 15957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectstatus_t Parcel::continueWrite(size_t desired) 15967c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 15977c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // If shrinking, first adjust for any objects that appear 15987c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // after the new data size. 15997c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t objectsSize = mObjectsSize; 16007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired < mDataSize) { 16017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired == 0) { 16027c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project objectsSize = 0; 16037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 16047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project while (objectsSize > 0) { 16057c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mObjects[objectsSize-1] < desired) 16067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project break; 16077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project objectsSize--; 16087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1611d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mOwner) { 16137c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // If the size is going to zero, just release the owner's data. 16147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired == 0) { 16157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project freeData(); 16167c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 16177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16187c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // If there is a different owner, we need to take 16207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // posession. 16217c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)malloc(desired); 16227c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!data) { 16237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 16247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 16257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 162684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* objects = NULL; 1627d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objectsSize) { 162984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg objects = (binder_size_t*)malloc(objectsSize*sizeof(binder_size_t)); 16307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!objects) { 16313f727c0ea3ad1de512c935c6e80423f2115b46c0Hyejin Kim free(data); 16323f727c0ea3ad1de512c935c6e80423f2115b46c0Hyejin Kim 16337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 16347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 16357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16367c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16377c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Little hack to only acquire references on objects 16387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // we will be keeping. 16397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project size_t oldObjectsSize = mObjectsSize; 16407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = objectsSize; 16417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project acquireObjects(); 16427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = oldObjectsSize; 16437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1644d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 16457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mData) { 16467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project memcpy(data, mData, mDataSize < desired ? mDataSize : desired); 16477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objects && mObjects) { 164984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg memcpy(objects, mObjects, objectsSize*sizeof(binder_size_t)); 16507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1651d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn //ALOGI("Freeing data ref of %p (pid=%d)", this, getpid()); 16527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner(this, mData, mDataSize, mObjects, mObjectsSize, mOwnerCookie); 16537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner = NULL; 16547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 16567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 16577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = (mDataSize < desired) ? mDataSize : desired; 1658d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data size of %p to %zu", this, mDataSize); 16597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 16607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = mObjectsCapacity = objectsSize; 16617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 16627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16637c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else if (mData) { 16647c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objectsSize < mObjectsSize) { 16657c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // Need to release refs on any objects we are dropping. 16667c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const sp<ProcessState> proc(ProcessState::self()); 16677c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (size_t i=objectsSize; i<mObjectsSize; i++) { 16687c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 16697c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<flat_binder_object*>(mData+mObjects[i]); 16707c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 16717c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // will need to rescan because we may have lopped off the only FDs 16727c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = false; 16737c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16747c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project release_object(proc, *flat, this); 16757c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 167684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg binder_size_t* objects = 167784e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg (binder_size_t*)realloc(mObjects, objectsSize*sizeof(binder_size_t)); 16787c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (objects) { 16797c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = objects; 16807c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16817c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = objectsSize; 16827c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 16837c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16847c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 16857c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // We own the data, so we can just do a realloc(). 16867c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (desired > mDataCapacity) { 16877c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)realloc(mData, desired); 16887c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (data) { 16897c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 16907c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 16917c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else if (desired > mDataCapacity) { 16927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 16937c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 16947c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 16957c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 169697e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn if (mDataSize > desired) { 169797e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn mDataSize = desired; 1698d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data size of %p to %zu", this, mDataSize); 169997e2bcd76021b31c5064fd3f669bc3f450b4c952Dianne Hackborn } 17007c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (mDataPos > desired) { 17017c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = desired; 1702d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data pos of %p to %zu", this, mDataPos); 17037c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17047c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1705d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 17067c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } else { 17077c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project // This is the first data. Easy! 17087c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project uint8_t* data = (uint8_t*)malloc(desired); 17097c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (!data) { 17107c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_MEMORY; 17117c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_MEMORY; 17127c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17133f727c0ea3ad1de512c935c6e80423f2115b46c0Hyejin Kim 17147c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if(!(mDataCapacity == 0 && mObjects == NULL 17157c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project && mObjectsCapacity == 0)) { 17166f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross ALOGE("continueWrite: %zu/%p/%zu/%zu", mDataCapacity, mObjects, mObjectsCapacity, desired); 17177c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 1718d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn 17197c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = data; 17207c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = mDataPos = 0; 1721d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data size of %p to %zu", this, mDataSize); 1722d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("continueWrite Setting data pos of %p to %zu", this, mDataPos); 17237c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = desired; 17247c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17257c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17267c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project return NO_ERROR; 17277c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 17287c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17297c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::initState() 17307c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 17317c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mError = NO_ERROR; 17327c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mData = 0; 17337c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataSize = 0; 17347c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataCapacity = 0; 17357c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mDataPos = 0; 1736d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("initState Setting data size of %p to %zu", this, mDataSize); 1737d4ecccfd206604a9b2d8a1220844fc2df85a5998Mark Salyzyn ALOGV("initState Setting data pos of %p to %zu", this, mDataPos); 17387c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjects = NULL; 17397c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsSize = 0; 17407c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mObjectsCapacity = 0; 17417c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mNextObjectHint = 0; 17427c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = false; 17437c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = true; 17448938ed2c8e906fc332301b64787728d4d34da571Dianne Hackborn mAllowFds = true; 17457c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mOwner = NULL; 17467c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 17477c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17487c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Projectvoid Parcel::scanForFds() const 17497c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project{ 17507c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project bool hasFds = false; 17517c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project for (size_t i=0; i<mObjectsSize; i++) { 17527c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project const flat_binder_object* flat 17537c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project = reinterpret_cast<const flat_binder_object*>(mData + mObjects[i]); 17547c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project if (flat->type == BINDER_TYPE_FD) { 17557c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project hasFds = true; 17567c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project break; 17577c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17587c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project } 17597c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mHasFds = hasFds; 17607c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project mFdsKnown = true; 17617c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project} 17627c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project 17635707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown// --- Parcel::Blob --- 17645707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17655707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff BrownParcel::Blob::Blob() : 17665707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mMapped(false), mData(NULL), mSize(0) { 17675707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 17685707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17695707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff BrownParcel::Blob::~Blob() { 17705707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown release(); 17715707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 17725707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17735707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownvoid Parcel::Blob::release() { 17745707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown if (mMapped && mData) { 17755707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown ::munmap(mData, mSize); 17765707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown } 17775707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown clear(); 17785707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 17795707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17805707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownvoid Parcel::Blob::init(bool mapped, void* data, size_t size) { 17815707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mMapped = mapped; 17825707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mData = data; 17835707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mSize = size; 17845707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 17855707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17865707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brownvoid Parcel::Blob::clear() { 17875707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mMapped = false; 17885707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mData = NULL; 17895707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown mSize = 0; 17905707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown} 17915707dbf15d0b44c88fbaa6dd271097f2d42932e0Jeff Brown 17927c1b96a165f970a09ed239bb4fb3f1b0d8f2a40The Android Open Source Project}; // namespace android 1793