c_parcel.cpp

/*
 * Copyright (C) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "c_parcel_internal.h"

#include <securec.h>
#include <string_ex.h>
#include "c_remote_object_internal.h"
#include "log_tags.h"
#include "ipc_debug.h"

using namespace OHOS;
static constexpr OHOS::HiviewDFX::HiLogLabel LOG_LABEL = { LOG_CORE, LOG_ID_IPC, "CParcel" };

MessageParcelHolder::MessageParcelHolder(OHOS::MessageParcel *parcel)
    : isExternal_(true)
{
    if (parcel == nullptr) {
        parcel_ = new (std::nothrow) MessageParcel();
        isExternal_ = false;
    } else {
        parcel_ = parcel;
    }
}

MessageParcelHolder::~MessageParcelHolder(void)
{
    if (!isExternal_ && parcel_ != nullptr) {
        delete parcel_;
    }
}

static bool IsValidParcel(const CParcel *parcel, const char *promot)
{
    if (parcel == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: parcel is null\n", promot);
        return false;
    }
    if (parcel->parcel_ == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: wrapper parcel is null\n", promot);
        return false;
    }
    return true;
}

static bool WriteAndCheckArrayLength(CParcel *parcel, bool isNull, int32_t len)
{
    if (len < -1) {
        return false;
    }
    if (!isNull && len < 0) {
        ZLOGE(LOG_LABEL, "%{public}s: not null array has invalid length: %d\n", __func__, len);
        return false;
    }
    if (isNull && len > 0) {
        ZLOGE(LOG_LABEL, "%{public}s: null array has invalid length: %d\n", __func__, len);
        return false;
    }
    return parcel->parcel_->WriteInt32(len);
}

static bool ReadAndCheckArrayLength(const CParcel *parcel, int32_t &len)
{
    if (!parcel->parcel_->ReadInt32(len)) {
        ZLOGE(LOG_LABEL, "%{public}s: read array length from native parcel failed\n", __func__);
        return false;
    }
    if (len < -1) {
        ZLOGE(LOG_LABEL, "%{public}s: length is invalid: %d\n", __func__, len);
        return false;
    }
    if (len <= 0) { // null array
        return true;
    }
    if (static_cast<uint32_t>(len) > parcel->parcel_->GetReadableBytes()) {
        ZLOGE(LOG_LABEL, "%{public}s: readable bytes are too short in parcel: %d\n", __func__, len);
        return false;
    }
    return true;
}

CParcel *CParcelObtain(void)
{
    CParcel *holder = new (std::nothrow) MessageParcelHolder();
    if (holder == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: malloc messsage parcel holder failed\n", __func__);
        return nullptr;
    }
    holder->IncStrongRef(nullptr);
    return holder;
}

void CParcelIncStrongRef(CParcel *parcel)
{
    if (parcel == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: parcel is nullptr\n", __func__);
        return;
    }
    parcel->IncStrongRef(nullptr);
}

void CParcelDecStrongRef(CParcel *parcel)
{
    if (parcel == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: parcel is nullptr\n", __func__);
        return;
    }
    parcel->DecStrongRef(nullptr);
}

bool CParcelWriteBool(CParcel *parcel, bool value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteBool(value);
}

bool CParcelReadBool(const CParcel *parcel, bool *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadBool(*value);
}

bool CParcelWriteInt8(CParcel *parcel, int8_t value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteInt8(value);
}

bool CParcelReadInt8(const CParcel *parcel, int8_t *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadInt8(*value);
}

bool CParcelWriteInt16(CParcel *parcel, int16_t value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteInt16(value);
}

bool CParcelReadInt16(const CParcel *parcel, int16_t *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadInt16(*value);
}

bool CParcelWriteInt32(CParcel *parcel, int32_t value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteInt32(value);
}

bool CParcelReadInt32(const CParcel *parcel, int32_t *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadInt32(*value);
}

bool CParcelWriteInt64(CParcel *parcel, int64_t value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteInt64(value);
}

bool CParcelReadInt64(const CParcel *parcel, int64_t *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadInt64(*value);
}

bool CParcelWriteFloat(CParcel *parcel, float value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteFloat(value);
}

bool CParcelReadFloat(const CParcel *parcel, float *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadFloat(*value);
}

bool CParcelWriteDouble(CParcel *parcel, double value)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteDouble(value);
}

bool CParcelReadDouble(const CParcel *parcel, double *value)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    return parcel->parcel_->ReadDouble(*value);
}

bool CParcelWriteString(CParcel *parcel, const char *stringData, int32_t length)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    if (stringData == nullptr) {
        if (length != -1) {
            ZLOGE(LOG_LABEL, "%{public}s: stringData is null, len: %d\n", __func__, length);
            return false;
        }
        std::string value;
        return parcel->parcel_->WriteString(value);
    }
    if (length < 0) {
        ZLOGE(LOG_LABEL, "%{public}s: stringData len is invalid: %d\n", __func__, length);
        return false;
    }
    std::string value(stringData, length);
    return parcel->parcel_->WriteString(value);
}

bool CParcelReadString(const CParcel *parcel, void *stringData, OnCParcelBytesAllocator allocator)
{
    if (!IsValidParcel(parcel, __func__) || allocator == nullptr) {
        return false;
    }
    std::string value;
    if (!parcel->parcel_->ReadString(value)) {
        ZLOGE(LOG_LABEL, "%{public}s: read string from parcel failed\n", __func__);
        return false;
    }
    char *buffer = nullptr;
    bool isSuccess = allocator(stringData, &buffer, value.length());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate string buffer is null\n", __func__);
        return false;
    }
    if (value.length() > 0 && memcpy_s(buffer, value.length(), value.data(), value.length()) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: memcpy string failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteString16(CParcel *parcel, const char *str, int32_t strLen)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    if (str == nullptr) {
        if (strLen != -1) {
            ZLOGE(LOG_LABEL, "%{public}s: str is null, len: %d\n", __func__, strLen);
            return false;
        }
        std::u16string value;
        return parcel->parcel_->WriteString16(value);
    }
    if (strLen < 0) {
        ZLOGE(LOG_LABEL, "%{public}s: str len is invalid: %d\n", __func__, strLen);
        return false;
    }
    std::u16string u16string = Str8ToStr16(std::string(str, strLen));
    if (u16string.length() == 0 && strLen != 0) {
        ZLOGE(LOG_LABEL, "%{public}s: convert u16string failed: %d\n", __func__, strLen);
        return false;
    }
    return parcel->parcel_->WriteString16(u16string);
}

bool CParcelReadString16(const CParcel *parcel, void *stringData, OnCParcelBytesAllocator allocator)
{
    if (!IsValidParcel(parcel, __func__) || allocator == nullptr) {
        return false;
    }
    std::u16string u16string;
    if (!parcel->parcel_->ReadString16(u16string)) {
        ZLOGE(LOG_LABEL, "%{public}s: read u16string from parcel failed\n", __func__);
        return false;
    }
    std::string value = Str16ToStr8(u16string);
    if (u16string.length() != 0 && value.length() == 0) {
        ZLOGE(LOG_LABEL, "%{public}s: u16string len: %u, string len: %u\n", __func__,
            static_cast<uint32_t>(u16string.length()), static_cast<uint32_t>(value.length()));
        return false;
    }
    char *buffer = nullptr;
    bool isSuccess = allocator(stringData, &buffer, value.length());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate string buffer is null\n", __func__);
        return false;
    }
    if (value.length() > 0 && memcpy_s(buffer, value.length(), value.data(), value.length()) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: memcpy string16 failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteInterfaceToken(CParcel *parcel, const char *token, int32_t tokenLen)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    if (token == nullptr || tokenLen < 0) {
        ZLOGE(LOG_LABEL, "%{public}s: token len is invalid: %d\n", __func__, tokenLen);
        return false;
    }
    std::u16string u16string = Str8ToStr16(std::string(token, tokenLen));
    if (u16string.length() == 0 && tokenLen != 0) {
        ZLOGE(LOG_LABEL, "%{public}s: convert token to u16string failed: %d\n", __func__, tokenLen);
        return false;
    }
    return parcel->parcel_->WriteInterfaceToken(u16string);
}

bool CParcelReadInterfaceToken(const CParcel *parcel, void *token, OnCParcelBytesAllocator allocator)
{
    if (!IsValidParcel(parcel, __func__) || allocator == nullptr) {
        return false;
    }
    std::u16string u16string = parcel->parcel_->ReadInterfaceToken();
    std::string value = Str16ToStr8(u16string);
    if (u16string.length() != 0 && value.length() == 0) {
        ZLOGE(LOG_LABEL, "%{public}s: u16string len: %u, string len: %u\n", __func__,
            static_cast<uint32_t>(u16string.length()), static_cast<uint32_t>(value.length()));
        return false;
    }
    char *buffer = nullptr;
    bool isSuccess = allocator(token, &buffer, value.length());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate interface token buffer failed\n", __func__);
        return false;
    }
    if (value.length() > 0 && memcpy_s(buffer, value.length(), value.data(), value.length()) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: memcpy interface token failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteRemoteObject(CParcel *parcel, const CRemoteObject *object)
{
    if (!IsValidParcel(parcel, __func__) || !IsValidRemoteObject(object, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteRemoteObject(object->remote_);
}

CRemoteObject *CParcelReadRemoteObject(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return nullptr;
    }
    sptr<IRemoteObject> remote = parcel->parcel_->ReadRemoteObject();
    if (remote == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: read remote object is null\n", __func__);
        return nullptr;
    }
    CRemoteObject *holder = nullptr;
    holder = new (std::nothrow) CRemoteObjectHolder();
    if (holder == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: craete remote object holder failed\n", __func__);
        return nullptr;
    }
    holder->remote_ = remote;
    holder->IncStrongRef(nullptr);
    return holder;
}

bool CParcelWriteFileDescriptor(CParcel *parcel, int32_t fd)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteFileDescriptor(fd);
}

bool CParcelReadFileDescriptor(const CParcel *parcel, int32_t *fd)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    if (fd == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: fd is null\n", __func__);
        return false;
    }
    *fd = parcel->parcel_->ReadFileDescriptor();
    return (*fd < 0) ? false : true;
}

bool CParcelWriteBuffer(CParcel *parcel, const uint8_t *buffer, uint32_t len)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    if (buffer == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: buffer is null: %d\n", __func__, len);
        return false;
    }
    return parcel->parcel_->WriteBuffer(buffer, len);
}

bool CParcelReadBuffer(const CParcel *parcel, uint8_t *value, uint32_t len)
{
    if (!IsValidParcel(parcel, __func__) || value == nullptr) {
        return false;
    }
    const uint8_t *data = parcel->parcel_->ReadBuffer(len);
    if (data == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: read buffer failed\n", __func__);
        return false;
    }
    if (len > 0 && memcpy_s(value, len, data, len) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: copy buffer failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteRawData(CParcel *parcel, const uint8_t *buffer, uint32_t len)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteRawData(buffer, len);
}

const uint8_t *CParcelReadRawData(const CParcel *parcel, uint32_t len)
{
    if (!IsValidParcel(parcel, __func__)) {
        return nullptr;
    }
    const void *data = parcel->parcel_->ReadRawData(len);
    if (data == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: read raw data from native failed\n", __func__);
        return nullptr;
    }
    return reinterpret_cast<const uint8_t *>(data);
}

template <typename T>
static bool WriteVector(CParcel *parcel, const char *func, const T *array, int32_t len,
    bool (Parcel::*Write)(const std::vector<T> &val))
{
    if (!IsValidParcel(parcel, func) || (array == nullptr && len > 0)) {
        return false;
    }
    std::vector<T> value(array, array + len);
    return (parcel->parcel_->*Write)(value);
}

template <typename T>
static bool ReadVector(const CParcel *parcel, const char *func, void *value,
    bool (*OnCParcelTypeAllocator)(void *value, T **buffer, int32_t len),
    bool (Parcel::*Read)(std::vector<T> *val))
{
    if (!IsValidParcel(parcel, func) || OnCParcelTypeAllocator == nullptr) {
        return false;
    }
    std::vector<T> array;
    if (!(parcel->parcel_->*Read)(&array)) {
        ZLOGE(LOG_LABEL, "%{public}s: read type vector from native failed\n", func);
        return false;
    }
    T *buffer = nullptr;
    bool isSuccess = OnCParcelTypeAllocator(value, &buffer, array.size());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate type array buffer failed\n", func);
        return false;
    }
    int32_t len = array.size() * sizeof(T);
    if (array.size() > 0 && memcpy_s(buffer, len, array.data(), len) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: memcpy type buffer failed\n", func);
        return false;
    }
    return true;
}

bool CParcelWriteBoolArray(CParcel *parcel, const bool *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteBoolVector);
}

bool CParcelReadBoolArray(const CParcel *parcel, void *value, OnCParcelBoolAllocator allocator)
{
    if (!IsValidParcel(parcel, __func__) || allocator == nullptr) {
        return false;
    }
    std::vector<bool> array;
    if (!parcel->parcel_->ReadBoolVector(&array)) {
        ZLOGE(LOG_LABEL, "%{public}s: read bool vector from native failed\n", __func__);
        return false;
    }
    bool *buffer = nullptr;
    bool isSuccess = allocator(value, &buffer, array.size());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate bool array buffer failed\n", __func__);
        return false;
    }
    if (array.size() > 0) {
        for (size_t i = 0; i < array.size(); ++i) {
            buffer[i] = array[i];
        }
    }
    return true;
}

bool CParcelWriteInt8Array(CParcel *parcel, const int8_t *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteInt8Vector);
}

bool CParcelReadInt8Array(const CParcel *parcel, void *value, OnCParcelInt8Allocator allocator)
{
    return ReadVector(parcel, __func__, value, allocator, &Parcel::ReadInt8Vector);
}

bool CParcelWriteInt16Array(CParcel *parcel, const int16_t *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteInt16Vector);
}

bool CParcelReadInt16Array(const CParcel *parcel, void *value, OnCParcelInt16Allocator allocator)
{
    return ReadVector(parcel, __func__, value, allocator, &Parcel::ReadInt16Vector);
}

bool CParcelWriteInt32Array(CParcel *parcel, const int32_t *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteInt32Vector);
}

bool CParcelReadInt32Array(const CParcel *parcel, void *value, OnCParcelInt32Allocator allocator)
{
    return ReadVector(parcel, __func__, value, allocator, &Parcel::ReadInt32Vector);
}

bool CParcelWriteInt64Array(CParcel *parcel, const int64_t *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteInt64Vector);
}

bool CParcelReadInt64Array(const CParcel *parcel, void *value, OnCParcelInt64Allocator allocator)
{
    return ReadVector(parcel, __func__, value, allocator, &Parcel::ReadInt64Vector);
}

bool CParcelWriteFloatArray(CParcel *parcel, const float *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteFloatVector);
}

bool CParcelReadFloatArray(const CParcel *parcel, void *value, OnCParcelFloatAllocator allocator)
{
    return ReadVector(parcel, __func__, value, allocator, &Parcel::ReadFloatVector);
}

bool CParcelWriteDoubleArray(CParcel *parcel, const double *array, int32_t len)
{
    return WriteVector(parcel, __func__, array, len, &Parcel::WriteDoubleVector);
}

bool CParcelReadDoubleArray(const CParcel *parcel, void *value, OnCParcelDoubleAllocator allocator)
{
    return ReadVector(parcel, __func__, value, allocator, &Parcel::ReadDoubleVector);
}

bool CParcelWriteStringArray(CParcel *parcel, const void *value,
    int32_t len, OnStringArrayWrite writer)
{
    if (!IsValidParcel(parcel, __func__) || writer == nullptr) {
        return false;
    }
    std::vector<std::string> stringVector;
    if (len > 0 && !writer(reinterpret_cast<void *>(&stringVector),
        value, static_cast<uint32_t>(len))) {
        ZLOGE(LOG_LABEL, "%{public}s: write string array to vector failed\n", __func__);
        return false;
    }
    if (!parcel->parcel_->WriteStringVector(stringVector)) {
        ZLOGE(LOG_LABEL, "%{public}s: write string array to parcel failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteString16Array(CParcel *parcel, const void *value,
    int32_t len, OnString16ArrayWrite writer)
{
    if (!IsValidParcel(parcel, __func__) || writer == nullptr) {
        return false;
    }
    std::vector<std::u16string> string16Vector;
    if (len > 0 && !writer(reinterpret_cast<void *>(&string16Vector),
        value, static_cast<uint32_t>(len))) {
        ZLOGE(LOG_LABEL, "%{public}s: write u16string array to vector failed\n", __func__);
        return false;
    }

    if (!parcel->parcel_->WriteString16Vector(string16Vector)) {
        ZLOGE(LOG_LABEL, "%{public}s: write u16string array to parcel failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteStringElement(void *data, const char *value, int32_t len)
{
    std::vector<std::string> *stringVector = reinterpret_cast<std::vector<std::string> *>(data);
    if (stringVector == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: stringVector is null\n", __func__);
        return false;
    }
    if (len < 0) {
        ZLOGE(LOG_LABEL, "%{public}s: string len is invalid: %d\n", __func__, len);
        return false;
    }
    stringVector->push_back(std::string(value, len));
    return true;
}

bool CParcelWritU16stringElement(void *data, const char *value, int32_t len)
{
    std::vector<std::u16string> *u16stringVector = reinterpret_cast<std::vector<std::u16string> *>(data);
    if (u16stringVector == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: stringVector is null\n", __func__);
        return false;
    }
    if (len < 0) {
        ZLOGE(LOG_LABEL, "%{public}s: string len is invalid: %d\n", __func__, len);
        return false;
    }

    std::u16string u16str = std::wstring_convert< std::codecvt_utf8_utf16<char16_t>, char16_t >{}.from_bytes(
        std::string(value, len));
    u16stringVector->push_back(u16str);

    return true;
}

bool CParcelReadStringArray(const CParcel *parcel, void *value, OnStringArrayRead reader)
{
    if (!IsValidParcel(parcel, __func__) || reader == nullptr) {
        return false;
    }
    std::vector<std::string> stringVector;
    if (!parcel->parcel_->ReadStringVector(&stringVector)) {
        ZLOGE(LOG_LABEL, "%{public}s: read string array from parcel failed\n", __func__);
        return false;
    }
    if (!reader(reinterpret_cast<void *>(&stringVector), value, stringVector.size())) {
        ZLOGE(LOG_LABEL, "%{public}s: read string to vector failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelReadString16Array(const CParcel *parcel, void *value, OnString16ArrayRead reader)
{
    if (!IsValidParcel(parcel, __func__) || reader == nullptr) {
        return false;
    }
    std::vector<std::u16string> string16Vector;
    if (!parcel->parcel_->ReadString16Vector(&string16Vector)) {
        ZLOGE(LOG_LABEL, "%{public}s: read u16string array from parcel failed\n", __func__);
        return false;
    }
    if (!reader(reinterpret_cast<void *>(&string16Vector), value, string16Vector.size())) {
        ZLOGE(LOG_LABEL, "%{public}s: read u16string to vector failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelReadString16Element(uint32_t index, const void *data, void *value,
    OnCParcelBytesAllocator16 allocator)
{
    if (data == nullptr || allocator == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: invalid data and allocator\n", __func__);
        return false;
    }
    const std::vector<std::u16string> *string16Vector =
        reinterpret_cast<const std::vector<std::u16string> *>(data);

    if (index >= string16Vector->size()) {
        ZLOGE(LOG_LABEL, "%{public}s: invalid index: %u, size: %u\n", __func__,
            index, static_cast<uint32_t>(string16Vector->size()));
        return false;
    }

    const std::u16string &string16Value = (*string16Vector)[index];
    int16_t *buffer = nullptr;
    bool isSuccess = allocator(value, &buffer, string16Value.length());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate string16Value buffer failed\n", __func__);
        return false;
    }

    if (string16Value.length() > 0 &&
        memcpy_s(buffer, string16Value.length() * sizeof(char16_t),
            string16Value.data(), string16Value.length() * sizeof(char16_t)) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: memcpy string16Value failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelReadStringElement(uint32_t index, const void *data, void *value,
    OnCParcelBytesAllocator allocator)
{
    if (data == nullptr || allocator == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: invalid data and allocator\n", __func__);
        return false;
    }
    const std::vector<std::string> *stringVector =
        reinterpret_cast<const std::vector<std::string> *>(data);
    if (index >= stringVector->size()) {
        ZLOGE(LOG_LABEL, "%{public}s: invalid index: %u, size: %u\n", __func__,
            index, static_cast<uint32_t>(stringVector->size()));
        return false;
    }

    const std::string &stringValue = (*stringVector)[index];
    char *buffer = nullptr;
    bool isSuccess = allocator(value, &buffer, stringValue.length());
    if (!isSuccess) {
        ZLOGE(LOG_LABEL, "%{public}s: allocate string buffer failed\n", __func__);
        return false;
    }

    if (stringValue.length() > 0 &&
        memcpy_s(buffer, stringValue.length(), stringValue.data(), stringValue.length()) != EOK) {
        ZLOGE(LOG_LABEL, "%{public}s: memcpy string failed\n", __func__);
        return false;
    }
    return true;
}

bool CParcelWriteParcelableArray(CParcel *parcel, const void *value, int32_t len,
    OnCParcelWriteElement elementWriter)
{
    if (!IsValidParcel(parcel, __func__) || elementWriter == nullptr) {
        return false;
    }
    size_t pos = parcel->parcel_->GetWritePosition();
    if (!WriteAndCheckArrayLength(parcel, len < 0, len)) {
        return false;
    }
    for (int32_t i = 0; i < len; ++i) {
        if (!elementWriter(parcel, value, static_cast<unsigned long>(i))) {
            ZLOGE(LOG_LABEL, "%{public}s: write parcelable for index: %d failed\n", __func__, i);
            parcel->parcel_->RewindWrite(pos);
            return false;
        }
    }
    return true;
}

bool CParcelReadParcelableArray(const CParcel *parcel, void *value,
    OnCParcelAllocator allocator, OnCParcelReadElement elementReader)
{
    if (!IsValidParcel(parcel, __func__) || elementReader == nullptr) {
        return false;
    }
    size_t pos = parcel->parcel_->GetReadPosition();
    int32_t length;
    if (!ReadAndCheckArrayLength(parcel, length)) {
        return false;
    }
    if (!allocator(value, length)) {
        ZLOGE(LOG_LABEL, "%{public}s: allocator failed\n", __func__);
        return false;
    }
    // length == -1 means null array, and will return true
    for (int32_t i = 0; i < length; ++i) {
        if (!elementReader(parcel, value, static_cast<unsigned long>(i))) {
            ZLOGE(LOG_LABEL, "%{public}s: read parcelable for index: %d failed\n", __func__, i);
            parcel->parcel_->RewindRead(pos);
            return false;
        }
    }
    return true;
}

uint32_t CParcelGetDataSize(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetDataSize();
}

bool CParcelSetDataSize(CParcel *parcel, uint32_t new_size)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->SetDataSize(new_size);
}

uint32_t CParcelGetDataCapacity(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetDataCapacity();
}

bool CParcelSetDataCapacity(CParcel *parcel, uint32_t new_size)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->SetDataCapacity(new_size);
}

uint32_t CParcelGetMaxCapacity(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetMaxCapacity();
}

bool CParcelSetMaxCapacity(CParcel *parcel, uint32_t new_size)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->SetMaxCapacity(new_size);
}

uint32_t CParcelGetWritableBytes(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetWritableBytes();
}

uint32_t CParcelGetReadableBytes(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetReadableBytes();
}

uint32_t CParcelGetReadPosition(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetReadPosition();
}

uint32_t CParcelGetWritePosition(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->GetWritePosition();
}

bool CParcelRewindRead(CParcel *parcel, uint32_t new_pos)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->RewindRead(new_pos);
}

bool CParcelRewindWrite(CParcel *parcel, uint32_t new_pos)
{
    if (!IsValidParcel(parcel, __func__)) {
        return 0;
    }
    return parcel->parcel_->RewindWrite(new_pos);
}

bool CParcelWriteAshmem(CParcel *parcel, CAshmem *ashmem)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->WriteAshmem(ashmem->ashmem_);
}

CAshmem *CParcelReadAshmem(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return nullptr;
    }
    sptr<Ashmem> ashmem = parcel->parcel_->ReadAshmem();
    if (ashmem == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: read ashmem failed\n", __func__);
        return nullptr;
    }
    CAshmem *cashmem = new (std::nothrow) CAshmem(ashmem);
    if (cashmem == nullptr) {
        ZLOGE(LOG_LABEL, "%{public}s: new ashmem failed\n", __func__);
        return nullptr;
    }
    ashmem->IncStrongRef(nullptr);
    return cashmem;
}

bool CParcelContainFileDescriptors(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->ContainFileDescriptors();
}

size_t CParcelGetRawDataSize(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return -1;
    }
    return parcel->parcel_->GetRawDataSize();
}

size_t CParcelGetRawDataCapacity(const CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return -1;
    }
    return parcel->parcel_->GetRawDataCapacity();
}

void CParcelClearFileDescriptor(CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return;
    }
    parcel->parcel_->ClearFileDescriptor();
}

void CParcelSetClearFdFlag(CParcel *parcel)
{
    if (!IsValidParcel(parcel, __func__)) {
        return;
    }
    parcel->parcel_->SetClearFdFlag();
}

bool CParcelAppend(CParcel *parcel, CParcel *data)
{
    if (!IsValidParcel(parcel, __func__)) {
        return false;
    }
    return parcel->parcel_->Append(*(data->parcel_));
}