1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "MtpProperty" 18 19 #include <inttypes.h> 20 #include <cutils/compiler.h> 21 #include "MtpDataPacket.h" 22 #include "MtpDebug.h" 23 #include "MtpProperty.h" 24 #include "MtpStringBuffer.h" 25 #include "MtpUtils.h" 26 27 namespace android { 28 29 MtpProperty::MtpProperty() 30 : mCode(0), 31 mType(0), 32 mWriteable(false), 33 mDefaultArrayLength(0), 34 mDefaultArrayValues(NULL), 35 mCurrentArrayLength(0), 36 mCurrentArrayValues(NULL), 37 mGroupCode(0), 38 mFormFlag(kFormNone), 39 mEnumLength(0), 40 mEnumValues(NULL) 41 { 42 memset(&mDefaultValue, 0, sizeof(mDefaultValue)); 43 memset(&mCurrentValue, 0, sizeof(mCurrentValue)); 44 memset(&mMinimumValue, 0, sizeof(mMinimumValue)); 45 memset(&mMaximumValue, 0, sizeof(mMaximumValue)); 46 } 47 48 MtpProperty::MtpProperty(MtpPropertyCode propCode, 49 MtpDataType type, 50 bool writeable, 51 int defaultValue) 52 : mCode(propCode), 53 mType(type), 54 mWriteable(writeable), 55 mDefaultArrayLength(0), 56 mDefaultArrayValues(NULL), 57 mCurrentArrayLength(0), 58 mCurrentArrayValues(NULL), 59 mGroupCode(0), 60 mFormFlag(kFormNone), 61 mEnumLength(0), 62 mEnumValues(NULL) 63 { 64 memset(&mDefaultValue, 0, sizeof(mDefaultValue)); 65 memset(&mCurrentValue, 0, sizeof(mCurrentValue)); 66 memset(&mMinimumValue, 0, sizeof(mMinimumValue)); 67 memset(&mMaximumValue, 0, sizeof(mMaximumValue)); 68 69 if (defaultValue) { 70 switch (type) { 71 case MTP_TYPE_INT8: 72 mDefaultValue.u.i8 = defaultValue; 73 break; 74 case MTP_TYPE_UINT8: 75 mDefaultValue.u.u8 = defaultValue; 76 break; 77 case MTP_TYPE_INT16: 78 mDefaultValue.u.i16 = defaultValue; 79 break; 80 case MTP_TYPE_UINT16: 81 mDefaultValue.u.u16 = defaultValue; 82 break; 83 case MTP_TYPE_INT32: 84 mDefaultValue.u.i32 = defaultValue; 85 break; 86 case MTP_TYPE_UINT32: 87 mDefaultValue.u.u32 = defaultValue; 88 break; 89 case MTP_TYPE_INT64: 90 mDefaultValue.u.i64 = defaultValue; 91 break; 92 case MTP_TYPE_UINT64: 93 mDefaultValue.u.u64 = defaultValue; 94 break; 95 default: 96 ALOGE("unknown type %04X in MtpProperty::MtpProperty", type); 97 } 98 } 99 } 100 101 MtpProperty::~MtpProperty() { 102 if (mType == MTP_TYPE_STR) { 103 // free all strings 104 free(mDefaultValue.str); 105 free(mCurrentValue.str); 106 free(mMinimumValue.str); 107 free(mMaximumValue.str); 108 if (mDefaultArrayValues) { 109 for (uint32_t i = 0; i < mDefaultArrayLength; i++) 110 free(mDefaultArrayValues[i].str); 111 } 112 if (mCurrentArrayValues) { 113 for (uint32_t i = 0; i < mCurrentArrayLength; i++) 114 free(mCurrentArrayValues[i].str); 115 } 116 if (mEnumValues) { 117 for (uint16_t i = 0; i < mEnumLength; i++) 118 free(mEnumValues[i].str); 119 } 120 } 121 delete[] mDefaultArrayValues; 122 delete[] mCurrentArrayValues; 123 delete[] mEnumValues; 124 } 125 126 bool MtpProperty::read(MtpDataPacket& packet) { 127 uint8_t temp8; 128 129 if (!packet.getUInt16(mCode)) return false; 130 bool deviceProp = isDeviceProperty(); 131 if (!packet.getUInt16(mType)) return false; 132 if (!packet.getUInt8(temp8)) return false; 133 mWriteable = (temp8 == 1); 134 switch (mType) { 135 case MTP_TYPE_AINT8: 136 case MTP_TYPE_AUINT8: 137 case MTP_TYPE_AINT16: 138 case MTP_TYPE_AUINT16: 139 case MTP_TYPE_AINT32: 140 case MTP_TYPE_AUINT32: 141 case MTP_TYPE_AINT64: 142 case MTP_TYPE_AUINT64: 143 case MTP_TYPE_AINT128: 144 case MTP_TYPE_AUINT128: 145 mDefaultArrayValues = readArrayValues(packet, mDefaultArrayLength); 146 if (!mDefaultArrayValues) return false; 147 if (deviceProp) { 148 mCurrentArrayValues = readArrayValues(packet, mCurrentArrayLength); 149 if (!mCurrentArrayValues) return false; 150 } 151 break; 152 default: 153 if (!readValue(packet, mDefaultValue)) return false; 154 if (deviceProp) { 155 if (!readValue(packet, mCurrentValue)) return false; 156 } 157 } 158 if (!deviceProp) { 159 if (!packet.getUInt32(mGroupCode)) return false; 160 } 161 if (!packet.getUInt8(mFormFlag)) return false; 162 163 if (mFormFlag == kFormRange) { 164 if (!readValue(packet, mMinimumValue)) return false; 165 if (!readValue(packet, mMaximumValue)) return false; 166 if (!readValue(packet, mStepSize)) return false; 167 } else if (mFormFlag == kFormEnum) { 168 if (!packet.getUInt16(mEnumLength)) return false; 169 mEnumValues = new MtpPropertyValue[mEnumLength]; 170 for (int i = 0; i < mEnumLength; i++) { 171 if (!readValue(packet, mEnumValues[i])) return false; 172 } 173 } 174 175 return true; 176 } 177 178 void MtpProperty::write(MtpDataPacket& packet) { 179 bool deviceProp = isDeviceProperty(); 180 181 packet.putUInt16(mCode); 182 packet.putUInt16(mType); 183 packet.putUInt8(mWriteable ? 1 : 0); 184 185 switch (mType) { 186 case MTP_TYPE_AINT8: 187 case MTP_TYPE_AUINT8: 188 case MTP_TYPE_AINT16: 189 case MTP_TYPE_AUINT16: 190 case MTP_TYPE_AINT32: 191 case MTP_TYPE_AUINT32: 192 case MTP_TYPE_AINT64: 193 case MTP_TYPE_AUINT64: 194 case MTP_TYPE_AINT128: 195 case MTP_TYPE_AUINT128: 196 writeArrayValues(packet, mDefaultArrayValues, mDefaultArrayLength); 197 if (deviceProp) 198 writeArrayValues(packet, mCurrentArrayValues, mCurrentArrayLength); 199 break; 200 default: 201 writeValue(packet, mDefaultValue); 202 if (deviceProp) 203 writeValue(packet, mCurrentValue); 204 } 205 if (!deviceProp) 206 packet.putUInt32(mGroupCode); 207 packet.putUInt8(mFormFlag); 208 if (mFormFlag == kFormRange) { 209 writeValue(packet, mMinimumValue); 210 writeValue(packet, mMaximumValue); 211 writeValue(packet, mStepSize); 212 } else if (mFormFlag == kFormEnum) { 213 packet.putUInt16(mEnumLength); 214 for (int i = 0; i < mEnumLength; i++) 215 writeValue(packet, mEnumValues[i]); 216 } 217 } 218 219 void MtpProperty::setDefaultValue(const uint16_t* string) { 220 free(mDefaultValue.str); 221 if (string) { 222 MtpStringBuffer buffer(string); 223 mDefaultValue.str = strdup(buffer); 224 } 225 else 226 mDefaultValue.str = NULL; 227 } 228 229 void MtpProperty::setCurrentValue(const uint16_t* string) { 230 free(mCurrentValue.str); 231 if (string) { 232 MtpStringBuffer buffer(string); 233 mCurrentValue.str = strdup(buffer); 234 } 235 else 236 mCurrentValue.str = NULL; 237 } 238 239 void MtpProperty::setFormRange(int min, int max, int step) { 240 mFormFlag = kFormRange; 241 switch (mType) { 242 case MTP_TYPE_INT8: 243 mMinimumValue.u.i8 = min; 244 mMaximumValue.u.i8 = max; 245 mStepSize.u.i8 = step; 246 break; 247 case MTP_TYPE_UINT8: 248 mMinimumValue.u.u8 = min; 249 mMaximumValue.u.u8 = max; 250 mStepSize.u.u8 = step; 251 break; 252 case MTP_TYPE_INT16: 253 mMinimumValue.u.i16 = min; 254 mMaximumValue.u.i16 = max; 255 mStepSize.u.i16 = step; 256 break; 257 case MTP_TYPE_UINT16: 258 mMinimumValue.u.u16 = min; 259 mMaximumValue.u.u16 = max; 260 mStepSize.u.u16 = step; 261 break; 262 case MTP_TYPE_INT32: 263 mMinimumValue.u.i32 = min; 264 mMaximumValue.u.i32 = max; 265 mStepSize.u.i32 = step; 266 break; 267 case MTP_TYPE_UINT32: 268 mMinimumValue.u.u32 = min; 269 mMaximumValue.u.u32 = max; 270 mStepSize.u.u32 = step; 271 break; 272 case MTP_TYPE_INT64: 273 mMinimumValue.u.i64 = min; 274 mMaximumValue.u.i64 = max; 275 mStepSize.u.i64 = step; 276 break; 277 case MTP_TYPE_UINT64: 278 mMinimumValue.u.u64 = min; 279 mMaximumValue.u.u64 = max; 280 mStepSize.u.u64 = step; 281 break; 282 default: 283 ALOGE("unsupported type for MtpProperty::setRange"); 284 break; 285 } 286 } 287 288 void MtpProperty::setFormEnum(const int* values, int count) { 289 mFormFlag = kFormEnum; 290 delete[] mEnumValues; 291 mEnumValues = new MtpPropertyValue[count]; 292 mEnumLength = count; 293 294 for (int i = 0; i < count; i++) { 295 int value = *values++; 296 switch (mType) { 297 case MTP_TYPE_INT8: 298 mEnumValues[i].u.i8 = value; 299 break; 300 case MTP_TYPE_UINT8: 301 mEnumValues[i].u.u8 = value; 302 break; 303 case MTP_TYPE_INT16: 304 mEnumValues[i].u.i16 = value; 305 break; 306 case MTP_TYPE_UINT16: 307 mEnumValues[i].u.u16 = value; 308 break; 309 case MTP_TYPE_INT32: 310 mEnumValues[i].u.i32 = value; 311 break; 312 case MTP_TYPE_UINT32: 313 mEnumValues[i].u.u32 = value; 314 break; 315 case MTP_TYPE_INT64: 316 mEnumValues[i].u.i64 = value; 317 break; 318 case MTP_TYPE_UINT64: 319 mEnumValues[i].u.u64 = value; 320 break; 321 default: 322 ALOGE("unsupported type for MtpProperty::setEnum"); 323 break; 324 } 325 } 326 } 327 328 void MtpProperty::setFormDateTime() { 329 mFormFlag = kFormDateTime; 330 } 331 332 void MtpProperty::print() { 333 MtpString buffer; 334 bool deviceProp = isDeviceProperty(); 335 if (deviceProp) 336 ALOGI(" %s (%04X)", MtpDebug::getDevicePropCodeName(mCode), mCode); 337 else 338 ALOGI(" %s (%04X)", MtpDebug::getObjectPropCodeName(mCode), mCode); 339 ALOGI(" type %04X", mType); 340 ALOGI(" writeable %s", (mWriteable ? "true" : "false")); 341 buffer = " default value: "; 342 print(mDefaultValue, buffer); 343 ALOGI("%s", (const char *)buffer); 344 if (deviceProp) { 345 buffer = " current value: "; 346 print(mCurrentValue, buffer); 347 ALOGI("%s", (const char *)buffer); 348 } 349 switch (mFormFlag) { 350 case kFormNone: 351 break; 352 case kFormRange: 353 buffer = " Range ("; 354 print(mMinimumValue, buffer); 355 buffer += ", "; 356 print(mMaximumValue, buffer); 357 buffer += ", "; 358 print(mStepSize, buffer); 359 buffer += ")"; 360 ALOGI("%s", (const char *)buffer); 361 break; 362 case kFormEnum: 363 buffer = " Enum { "; 364 for (int i = 0; i < mEnumLength; i++) { 365 print(mEnumValues[i], buffer); 366 buffer += " "; 367 } 368 buffer += "}"; 369 ALOGI("%s", (const char *)buffer); 370 break; 371 case kFormDateTime: 372 ALOGI(" DateTime\n"); 373 break; 374 default: 375 ALOGI(" form %d\n", mFormFlag); 376 break; 377 } 378 } 379 380 void MtpProperty::print(MtpPropertyValue& value, MtpString& buffer) { 381 switch (mType) { 382 case MTP_TYPE_INT8: 383 buffer.appendFormat("%d", value.u.i8); 384 break; 385 case MTP_TYPE_UINT8: 386 buffer.appendFormat("%d", value.u.u8); 387 break; 388 case MTP_TYPE_INT16: 389 buffer.appendFormat("%d", value.u.i16); 390 break; 391 case MTP_TYPE_UINT16: 392 buffer.appendFormat("%d", value.u.u16); 393 break; 394 case MTP_TYPE_INT32: 395 buffer.appendFormat("%d", value.u.i32); 396 break; 397 case MTP_TYPE_UINT32: 398 buffer.appendFormat("%d", value.u.u32); 399 break; 400 case MTP_TYPE_INT64: 401 buffer.appendFormat("%" PRId64, value.u.i64); 402 break; 403 case MTP_TYPE_UINT64: 404 buffer.appendFormat("%" PRIu64, value.u.u64); 405 break; 406 case MTP_TYPE_INT128: 407 buffer.appendFormat("%08X%08X%08X%08X", value.u.i128[0], value.u.i128[1], 408 value.u.i128[2], value.u.i128[3]); 409 break; 410 case MTP_TYPE_UINT128: 411 buffer.appendFormat("%08X%08X%08X%08X", value.u.u128[0], value.u.u128[1], 412 value.u.u128[2], value.u.u128[3]); 413 break; 414 case MTP_TYPE_STR: 415 buffer.appendFormat("%s", value.str); 416 break; 417 default: 418 ALOGE("unsupported type for MtpProperty::print\n"); 419 break; 420 } 421 } 422 423 bool MtpProperty::readValue(MtpDataPacket& packet, MtpPropertyValue& value) { 424 MtpStringBuffer stringBuffer; 425 426 switch (mType) { 427 case MTP_TYPE_INT8: 428 case MTP_TYPE_AINT8: 429 if (!packet.getInt8(value.u.i8)) return false; 430 break; 431 case MTP_TYPE_UINT8: 432 case MTP_TYPE_AUINT8: 433 if (!packet.getUInt8(value.u.u8)) return false; 434 break; 435 case MTP_TYPE_INT16: 436 case MTP_TYPE_AINT16: 437 if (!packet.getInt16(value.u.i16)) return false; 438 break; 439 case MTP_TYPE_UINT16: 440 case MTP_TYPE_AUINT16: 441 if (!packet.getUInt16(value.u.u16)) return false; 442 break; 443 case MTP_TYPE_INT32: 444 case MTP_TYPE_AINT32: 445 if (!packet.getInt32(value.u.i32)) return false; 446 break; 447 case MTP_TYPE_UINT32: 448 case MTP_TYPE_AUINT32: 449 if (!packet.getUInt32(value.u.u32)) return false; 450 break; 451 case MTP_TYPE_INT64: 452 case MTP_TYPE_AINT64: 453 if (!packet.getInt64(value.u.i64)) return false; 454 break; 455 case MTP_TYPE_UINT64: 456 case MTP_TYPE_AUINT64: 457 if (!packet.getUInt64(value.u.u64)) return false; 458 break; 459 case MTP_TYPE_INT128: 460 case MTP_TYPE_AINT128: 461 if (!packet.getInt128(value.u.i128)) return false; 462 break; 463 case MTP_TYPE_UINT128: 464 case MTP_TYPE_AUINT128: 465 if (!packet.getUInt128(value.u.u128)) return false; 466 break; 467 case MTP_TYPE_STR: 468 if (!packet.getString(stringBuffer)) return false; 469 value.str = strdup(stringBuffer); 470 break; 471 default: 472 ALOGE("unknown type %04X in MtpProperty::readValue", mType); 473 return false; 474 } 475 return true; 476 } 477 478 void MtpProperty::writeValue(MtpDataPacket& packet, MtpPropertyValue& value) { 479 MtpStringBuffer stringBuffer; 480 481 switch (mType) { 482 case MTP_TYPE_INT8: 483 case MTP_TYPE_AINT8: 484 packet.putInt8(value.u.i8); 485 break; 486 case MTP_TYPE_UINT8: 487 case MTP_TYPE_AUINT8: 488 packet.putUInt8(value.u.u8); 489 break; 490 case MTP_TYPE_INT16: 491 case MTP_TYPE_AINT16: 492 packet.putInt16(value.u.i16); 493 break; 494 case MTP_TYPE_UINT16: 495 case MTP_TYPE_AUINT16: 496 packet.putUInt16(value.u.u16); 497 break; 498 case MTP_TYPE_INT32: 499 case MTP_TYPE_AINT32: 500 packet.putInt32(value.u.i32); 501 break; 502 case MTP_TYPE_UINT32: 503 case MTP_TYPE_AUINT32: 504 packet.putUInt32(value.u.u32); 505 break; 506 case MTP_TYPE_INT64: 507 case MTP_TYPE_AINT64: 508 packet.putInt64(value.u.i64); 509 break; 510 case MTP_TYPE_UINT64: 511 case MTP_TYPE_AUINT64: 512 packet.putUInt64(value.u.u64); 513 break; 514 case MTP_TYPE_INT128: 515 case MTP_TYPE_AINT128: 516 packet.putInt128(value.u.i128); 517 break; 518 case MTP_TYPE_UINT128: 519 case MTP_TYPE_AUINT128: 520 packet.putUInt128(value.u.u128); 521 break; 522 case MTP_TYPE_STR: 523 if (value.str) 524 packet.putString(value.str); 525 else 526 packet.putEmptyString(); 527 break; 528 default: 529 ALOGE("unknown type %04X in MtpProperty::writeValue", mType); 530 } 531 } 532 533 MtpPropertyValue* MtpProperty::readArrayValues(MtpDataPacket& packet, uint32_t& length) { 534 if (!packet.getUInt32(length)) return NULL; 535 536 // Fail if resulting array is over 2GB. This is because the maximum array 537 // size may be less than SIZE_MAX on some platforms. 538 if ( CC_UNLIKELY( 539 length == 0 || 540 length >= INT32_MAX / sizeof(MtpPropertyValue)) ) { 541 length = 0; 542 return NULL; 543 } 544 MtpPropertyValue* result = new MtpPropertyValue[length]; 545 for (uint32_t i = 0; i < length; i++) 546 if (!readValue(packet, result[i])) { 547 delete result; 548 return NULL; 549 } 550 return result; 551 } 552 553 void MtpProperty::writeArrayValues(MtpDataPacket& packet, MtpPropertyValue* values, uint32_t length) { 554 packet.putUInt32(length); 555 for (uint32_t i = 0; i < length; i++) 556 writeValue(packet, values[i]); 557 } 558 559 } // namespace android 560
