| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #define LOG_TAG "MtpProperty" |
| |
| #include <inttypes.h> |
| #include <cutils/compiler.h> |
| #include "MtpDataPacket.h" |
| #include "MtpDebug.h" |
| #include "MtpProperty.h" |
| #include "MtpStringBuffer.h" |
| #include "MtpUtils.h" |
| |
| namespace android { |
| |
| MtpProperty::MtpProperty() |
| : mCode(0), |
| mType(0), |
| mWriteable(false), |
| mDefaultArrayLength(0), |
| mDefaultArrayValues(NULL), |
| mCurrentArrayLength(0), |
| mCurrentArrayValues(NULL), |
| mGroupCode(0), |
| mFormFlag(kFormNone), |
| mEnumLength(0), |
| mEnumValues(NULL) |
| { |
| memset(&mDefaultValue, 0, sizeof(mDefaultValue)); |
| memset(&mCurrentValue, 0, sizeof(mCurrentValue)); |
| memset(&mMinimumValue, 0, sizeof(mMinimumValue)); |
| memset(&mMaximumValue, 0, sizeof(mMaximumValue)); |
| } |
| |
| MtpProperty::MtpProperty(MtpPropertyCode propCode, |
| MtpDataType type, |
| bool writeable, |
| int defaultValue) |
| : mCode(propCode), |
| mType(type), |
| mWriteable(writeable), |
| mDefaultArrayLength(0), |
| mDefaultArrayValues(NULL), |
| mCurrentArrayLength(0), |
| mCurrentArrayValues(NULL), |
| mGroupCode(0), |
| mFormFlag(kFormNone), |
| mEnumLength(0), |
| mEnumValues(NULL) |
| { |
| memset(&mDefaultValue, 0, sizeof(mDefaultValue)); |
| memset(&mCurrentValue, 0, sizeof(mCurrentValue)); |
| memset(&mMinimumValue, 0, sizeof(mMinimumValue)); |
| memset(&mMaximumValue, 0, sizeof(mMaximumValue)); |
| |
| if (defaultValue) { |
| switch (type) { |
| case MTP_TYPE_INT8: |
| mDefaultValue.u.i8 = defaultValue; |
| break; |
| case MTP_TYPE_UINT8: |
| mDefaultValue.u.u8 = defaultValue; |
| break; |
| case MTP_TYPE_INT16: |
| mDefaultValue.u.i16 = defaultValue; |
| break; |
| case MTP_TYPE_UINT16: |
| mDefaultValue.u.u16 = defaultValue; |
| break; |
| case MTP_TYPE_INT32: |
| mDefaultValue.u.i32 = defaultValue; |
| break; |
| case MTP_TYPE_UINT32: |
| mDefaultValue.u.u32 = defaultValue; |
| break; |
| case MTP_TYPE_INT64: |
| mDefaultValue.u.i64 = defaultValue; |
| break; |
| case MTP_TYPE_UINT64: |
| mDefaultValue.u.u64 = defaultValue; |
| break; |
| default: |
| ALOGE("unknown type %04X in MtpProperty::MtpProperty", type); |
| } |
| } |
| } |
| |
| MtpProperty::~MtpProperty() { |
| if (mType == MTP_TYPE_STR) { |
| // free all strings |
| free(mDefaultValue.str); |
| free(mCurrentValue.str); |
| free(mMinimumValue.str); |
| free(mMaximumValue.str); |
| if (mDefaultArrayValues) { |
| for (uint32_t i = 0; i < mDefaultArrayLength; i++) |
| free(mDefaultArrayValues[i].str); |
| } |
| if (mCurrentArrayValues) { |
| for (uint32_t i = 0; i < mCurrentArrayLength; i++) |
| free(mCurrentArrayValues[i].str); |
| } |
| if (mEnumValues) { |
| for (uint16_t i = 0; i < mEnumLength; i++) |
| free(mEnumValues[i].str); |
| } |
| } |
| delete[] mDefaultArrayValues; |
| delete[] mCurrentArrayValues; |
| delete[] mEnumValues; |
| } |
| |
| bool MtpProperty::read(MtpDataPacket& packet) { |
| uint8_t temp8; |
| |
| if (!packet.getUInt16(mCode)) return false; |
| bool deviceProp = isDeviceProperty(); |
| if (!packet.getUInt16(mType)) return false; |
| if (!packet.getUInt8(temp8)) return false; |
| mWriteable = (temp8 == 1); |
| switch (mType) { |
| case MTP_TYPE_AINT8: |
| case MTP_TYPE_AUINT8: |
| case MTP_TYPE_AINT16: |
| case MTP_TYPE_AUINT16: |
| case MTP_TYPE_AINT32: |
| case MTP_TYPE_AUINT32: |
| case MTP_TYPE_AINT64: |
| case MTP_TYPE_AUINT64: |
| case MTP_TYPE_AINT128: |
| case MTP_TYPE_AUINT128: |
| mDefaultArrayValues = readArrayValues(packet, mDefaultArrayLength); |
| if (!mDefaultArrayValues) return false; |
| if (deviceProp) { |
| mCurrentArrayValues = readArrayValues(packet, mCurrentArrayLength); |
| if (!mCurrentArrayValues) return false; |
| } |
| break; |
| default: |
| if (!readValue(packet, mDefaultValue)) return false; |
| if (deviceProp) { |
| if (!readValue(packet, mCurrentValue)) return false; |
| } |
| } |
| if (!deviceProp) { |
| if (!packet.getUInt32(mGroupCode)) return false; |
| } |
| if (!packet.getUInt8(mFormFlag)) return false; |
| |
| if (mFormFlag == kFormRange) { |
| if (!readValue(packet, mMinimumValue)) return false; |
| if (!readValue(packet, mMaximumValue)) return false; |
| if (!readValue(packet, mStepSize)) return false; |
| } else if (mFormFlag == kFormEnum) { |
| if (!packet.getUInt16(mEnumLength)) return false; |
| mEnumValues = new MtpPropertyValue[mEnumLength]; |
| for (int i = 0; i < mEnumLength; i++) { |
| if (!readValue(packet, mEnumValues[i])) return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| void MtpProperty::write(MtpDataPacket& packet) { |
| bool deviceProp = isDeviceProperty(); |
| |
| packet.putUInt16(mCode); |
| packet.putUInt16(mType); |
| packet.putUInt8(mWriteable ? 1 : 0); |
| |
| switch (mType) { |
| case MTP_TYPE_AINT8: |
| case MTP_TYPE_AUINT8: |
| case MTP_TYPE_AINT16: |
| case MTP_TYPE_AUINT16: |
| case MTP_TYPE_AINT32: |
| case MTP_TYPE_AUINT32: |
| case MTP_TYPE_AINT64: |
| case MTP_TYPE_AUINT64: |
| case MTP_TYPE_AINT128: |
| case MTP_TYPE_AUINT128: |
| writeArrayValues(packet, mDefaultArrayValues, mDefaultArrayLength); |
| if (deviceProp) |
| writeArrayValues(packet, mCurrentArrayValues, mCurrentArrayLength); |
| break; |
| default: |
| writeValue(packet, mDefaultValue); |
| if (deviceProp) |
| writeValue(packet, mCurrentValue); |
| } |
| if (!deviceProp) |
| packet.putUInt32(mGroupCode); |
| packet.putUInt8(mFormFlag); |
| if (mFormFlag == kFormRange) { |
| writeValue(packet, mMinimumValue); |
| writeValue(packet, mMaximumValue); |
| writeValue(packet, mStepSize); |
| } else if (mFormFlag == kFormEnum) { |
| packet.putUInt16(mEnumLength); |
| for (int i = 0; i < mEnumLength; i++) |
| writeValue(packet, mEnumValues[i]); |
| } |
| } |
| |
| void MtpProperty::setDefaultValue(const uint16_t* string) { |
| free(mDefaultValue.str); |
| if (string) { |
| MtpStringBuffer buffer(string); |
| mDefaultValue.str = strdup(buffer); |
| } |
| else |
| mDefaultValue.str = NULL; |
| } |
| |
| void MtpProperty::setCurrentValue(const uint16_t* string) { |
| free(mCurrentValue.str); |
| if (string) { |
| MtpStringBuffer buffer(string); |
| mCurrentValue.str = strdup(buffer); |
| } |
| else |
| mCurrentValue.str = NULL; |
| } |
| |
| void MtpProperty::setFormRange(int min, int max, int step) { |
| mFormFlag = kFormRange; |
| switch (mType) { |
| case MTP_TYPE_INT8: |
| mMinimumValue.u.i8 = min; |
| mMaximumValue.u.i8 = max; |
| mStepSize.u.i8 = step; |
| break; |
| case MTP_TYPE_UINT8: |
| mMinimumValue.u.u8 = min; |
| mMaximumValue.u.u8 = max; |
| mStepSize.u.u8 = step; |
| break; |
| case MTP_TYPE_INT16: |
| mMinimumValue.u.i16 = min; |
| mMaximumValue.u.i16 = max; |
| mStepSize.u.i16 = step; |
| break; |
| case MTP_TYPE_UINT16: |
| mMinimumValue.u.u16 = min; |
| mMaximumValue.u.u16 = max; |
| mStepSize.u.u16 = step; |
| break; |
| case MTP_TYPE_INT32: |
| mMinimumValue.u.i32 = min; |
| mMaximumValue.u.i32 = max; |
| mStepSize.u.i32 = step; |
| break; |
| case MTP_TYPE_UINT32: |
| mMinimumValue.u.u32 = min; |
| mMaximumValue.u.u32 = max; |
| mStepSize.u.u32 = step; |
| break; |
| case MTP_TYPE_INT64: |
| mMinimumValue.u.i64 = min; |
| mMaximumValue.u.i64 = max; |
| mStepSize.u.i64 = step; |
| break; |
| case MTP_TYPE_UINT64: |
| mMinimumValue.u.u64 = min; |
| mMaximumValue.u.u64 = max; |
| mStepSize.u.u64 = step; |
| break; |
| default: |
| ALOGE("unsupported type for MtpProperty::setRange"); |
| break; |
| } |
| } |
| |
| void MtpProperty::setFormEnum(const int* values, int count) { |
| mFormFlag = kFormEnum; |
| delete[] mEnumValues; |
| mEnumValues = new MtpPropertyValue[count]; |
| mEnumLength = count; |
| |
| for (int i = 0; i < count; i++) { |
| int value = *values++; |
| switch (mType) { |
| case MTP_TYPE_INT8: |
| mEnumValues[i].u.i8 = value; |
| break; |
| case MTP_TYPE_UINT8: |
| mEnumValues[i].u.u8 = value; |
| break; |
| case MTP_TYPE_INT16: |
| mEnumValues[i].u.i16 = value; |
| break; |
| case MTP_TYPE_UINT16: |
| mEnumValues[i].u.u16 = value; |
| break; |
| case MTP_TYPE_INT32: |
| mEnumValues[i].u.i32 = value; |
| break; |
| case MTP_TYPE_UINT32: |
| mEnumValues[i].u.u32 = value; |
| break; |
| case MTP_TYPE_INT64: |
| mEnumValues[i].u.i64 = value; |
| break; |
| case MTP_TYPE_UINT64: |
| mEnumValues[i].u.u64 = value; |
| break; |
| default: |
| ALOGE("unsupported type for MtpProperty::setEnum"); |
| break; |
| } |
| } |
| } |
| |
| void MtpProperty::setFormDateTime() { |
| mFormFlag = kFormDateTime; |
| } |
| |
| void MtpProperty::print() { |
| MtpString buffer; |
| bool deviceProp = isDeviceProperty(); |
| if (deviceProp) |
| ALOGI(" %s (%04X)", MtpDebug::getDevicePropCodeName(mCode), mCode); |
| else |
| ALOGI(" %s (%04X)", MtpDebug::getObjectPropCodeName(mCode), mCode); |
| ALOGI(" type %04X", mType); |
| ALOGI(" writeable %s", (mWriteable ? "true" : "false")); |
| buffer = " default value: "; |
| print(mDefaultValue, buffer); |
| ALOGI("%s", (const char *)buffer); |
| if (deviceProp) { |
| buffer = " current value: "; |
| print(mCurrentValue, buffer); |
| ALOGI("%s", (const char *)buffer); |
| } |
| switch (mFormFlag) { |
| case kFormNone: |
| break; |
| case kFormRange: |
| buffer = " Range ("; |
| print(mMinimumValue, buffer); |
| buffer += ", "; |
| print(mMaximumValue, buffer); |
| buffer += ", "; |
| print(mStepSize, buffer); |
| buffer += ")"; |
| ALOGI("%s", (const char *)buffer); |
| break; |
| case kFormEnum: |
| buffer = " Enum { "; |
| for (int i = 0; i < mEnumLength; i++) { |
| print(mEnumValues[i], buffer); |
| buffer += " "; |
| } |
| buffer += "}"; |
| ALOGI("%s", (const char *)buffer); |
| break; |
| case kFormDateTime: |
| ALOGI(" DateTime\n"); |
| break; |
| default: |
| ALOGI(" form %d\n", mFormFlag); |
| break; |
| } |
| } |
| |
| void MtpProperty::print(MtpPropertyValue& value, MtpString& buffer) { |
| switch (mType) { |
| case MTP_TYPE_INT8: |
| buffer.appendFormat("%d", value.u.i8); |
| break; |
| case MTP_TYPE_UINT8: |
| buffer.appendFormat("%d", value.u.u8); |
| break; |
| case MTP_TYPE_INT16: |
| buffer.appendFormat("%d", value.u.i16); |
| break; |
| case MTP_TYPE_UINT16: |
| buffer.appendFormat("%d", value.u.u16); |
| break; |
| case MTP_TYPE_INT32: |
| buffer.appendFormat("%d", value.u.i32); |
| break; |
| case MTP_TYPE_UINT32: |
| buffer.appendFormat("%d", value.u.u32); |
| break; |
| case MTP_TYPE_INT64: |
| buffer.appendFormat("%" PRId64, value.u.i64); |
| break; |
| case MTP_TYPE_UINT64: |
| buffer.appendFormat("%" PRIu64, value.u.u64); |
| break; |
| case MTP_TYPE_INT128: |
| buffer.appendFormat("%08X%08X%08X%08X", value.u.i128[0], value.u.i128[1], |
| value.u.i128[2], value.u.i128[3]); |
| break; |
| case MTP_TYPE_UINT128: |
| buffer.appendFormat("%08X%08X%08X%08X", value.u.u128[0], value.u.u128[1], |
| value.u.u128[2], value.u.u128[3]); |
| break; |
| case MTP_TYPE_STR: |
| buffer.appendFormat("%s", value.str); |
| break; |
| default: |
| ALOGE("unsupported type for MtpProperty::print\n"); |
| break; |
| } |
| } |
| |
| bool MtpProperty::readValue(MtpDataPacket& packet, MtpPropertyValue& value) { |
| MtpStringBuffer stringBuffer; |
| |
| switch (mType) { |
| case MTP_TYPE_INT8: |
| case MTP_TYPE_AINT8: |
| if (!packet.getInt8(value.u.i8)) return false; |
| break; |
| case MTP_TYPE_UINT8: |
| case MTP_TYPE_AUINT8: |
| if (!packet.getUInt8(value.u.u8)) return false; |
| break; |
| case MTP_TYPE_INT16: |
| case MTP_TYPE_AINT16: |
| if (!packet.getInt16(value.u.i16)) return false; |
| break; |
| case MTP_TYPE_UINT16: |
| case MTP_TYPE_AUINT16: |
| if (!packet.getUInt16(value.u.u16)) return false; |
| break; |
| case MTP_TYPE_INT32: |
| case MTP_TYPE_AINT32: |
| if (!packet.getInt32(value.u.i32)) return false; |
| break; |
| case MTP_TYPE_UINT32: |
| case MTP_TYPE_AUINT32: |
| if (!packet.getUInt32(value.u.u32)) return false; |
| break; |
| case MTP_TYPE_INT64: |
| case MTP_TYPE_AINT64: |
| if (!packet.getInt64(value.u.i64)) return false; |
| break; |
| case MTP_TYPE_UINT64: |
| case MTP_TYPE_AUINT64: |
| if (!packet.getUInt64(value.u.u64)) return false; |
| break; |
| case MTP_TYPE_INT128: |
| case MTP_TYPE_AINT128: |
| if (!packet.getInt128(value.u.i128)) return false; |
| break; |
| case MTP_TYPE_UINT128: |
| case MTP_TYPE_AUINT128: |
| if (!packet.getUInt128(value.u.u128)) return false; |
| break; |
| case MTP_TYPE_STR: |
| if (!packet.getString(stringBuffer)) return false; |
| value.str = strdup(stringBuffer); |
| break; |
| default: |
| ALOGE("unknown type %04X in MtpProperty::readValue", mType); |
| return false; |
| } |
| return true; |
| } |
| |
| void MtpProperty::writeValue(MtpDataPacket& packet, MtpPropertyValue& value) { |
| MtpStringBuffer stringBuffer; |
| |
| switch (mType) { |
| case MTP_TYPE_INT8: |
| case MTP_TYPE_AINT8: |
| packet.putInt8(value.u.i8); |
| break; |
| case MTP_TYPE_UINT8: |
| case MTP_TYPE_AUINT8: |
| packet.putUInt8(value.u.u8); |
| break; |
| case MTP_TYPE_INT16: |
| case MTP_TYPE_AINT16: |
| packet.putInt16(value.u.i16); |
| break; |
| case MTP_TYPE_UINT16: |
| case MTP_TYPE_AUINT16: |
| packet.putUInt16(value.u.u16); |
| break; |
| case MTP_TYPE_INT32: |
| case MTP_TYPE_AINT32: |
| packet.putInt32(value.u.i32); |
| break; |
| case MTP_TYPE_UINT32: |
| case MTP_TYPE_AUINT32: |
| packet.putUInt32(value.u.u32); |
| break; |
| case MTP_TYPE_INT64: |
| case MTP_TYPE_AINT64: |
| packet.putInt64(value.u.i64); |
| break; |
| case MTP_TYPE_UINT64: |
| case MTP_TYPE_AUINT64: |
| packet.putUInt64(value.u.u64); |
| break; |
| case MTP_TYPE_INT128: |
| case MTP_TYPE_AINT128: |
| packet.putInt128(value.u.i128); |
| break; |
| case MTP_TYPE_UINT128: |
| case MTP_TYPE_AUINT128: |
| packet.putUInt128(value.u.u128); |
| break; |
| case MTP_TYPE_STR: |
| if (value.str) |
| packet.putString(value.str); |
| else |
| packet.putEmptyString(); |
| break; |
| default: |
| ALOGE("unknown type %04X in MtpProperty::writeValue", mType); |
| } |
| } |
| |
| MtpPropertyValue* MtpProperty::readArrayValues(MtpDataPacket& packet, uint32_t& length) { |
| if (!packet.getUInt32(length)) return NULL; |
| |
| // Fail if resulting array is over 2GB. This is because the maximum array |
| // size may be less than SIZE_MAX on some platforms. |
| if ( CC_UNLIKELY( |
| length == 0 || |
| length >= INT32_MAX / sizeof(MtpPropertyValue)) ) { |
| length = 0; |
| return NULL; |
| } |
| MtpPropertyValue* result = new MtpPropertyValue[length]; |
| for (uint32_t i = 0; i < length; i++) |
| if (!readValue(packet, result[i])) { |
| delete result; |
| return NULL; |
| } |
| return result; |
| } |
| |
| void MtpProperty::writeArrayValues(MtpDataPacket& packet, MtpPropertyValue* values, uint32_t length) { |
| packet.putUInt32(length); |
| for (uint32_t i = 0; i < length; i++) |
| writeValue(packet, values[i]); |
| } |
| |
| } // namespace android |
