1 /* 2 * Copyright (C) 2008 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 "ResourceType" 18 //#define LOG_NDEBUG 0 19 20 #include <ctype.h> 21 #include <memory.h> 22 #include <stddef.h> 23 #include <stdint.h> 24 #include <stdlib.h> 25 #include <string.h> 26 27 #include <limits> 28 #include <type_traits> 29 30 #include <androidfw/ByteBucketArray.h> 31 #include <androidfw/ResourceTypes.h> 32 #include <androidfw/TypeWrappers.h> 33 #include <utils/Atomic.h> 34 #include <utils/ByteOrder.h> 35 #include <utils/Debug.h> 36 #include <utils/Log.h> 37 #include <utils/String16.h> 38 #include <utils/String8.h> 39 40 #ifdef __ANDROID__ 41 #include <binder/TextOutput.h> 42 #endif 43 44 #ifndef INT32_MAX 45 #define INT32_MAX ((int32_t)(2147483647)) 46 #endif 47 48 namespace android { 49 50 #ifdef HAVE_WINSOCK 51 #undef nhtol 52 #undef htonl 53 #define ntohl(x) ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) ) 54 #define htonl(x) ntohl(x) 55 #define ntohs(x) ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) ) 56 #define htons(x) ntohs(x) 57 #endif 58 59 #define IDMAP_MAGIC 0x504D4449 60 #define IDMAP_CURRENT_VERSION 0x00000001 61 62 #define APP_PACKAGE_ID 0x7f 63 #define SYS_PACKAGE_ID 0x01 64 65 static const bool kDebugStringPoolNoisy = false; 66 static const bool kDebugXMLNoisy = false; 67 static const bool kDebugTableNoisy = false; 68 static const bool kDebugTableGetEntry = false; 69 static const bool kDebugTableSuperNoisy = false; 70 static const bool kDebugLoadTableNoisy = false; 71 static const bool kDebugLoadTableSuperNoisy = false; 72 static const bool kDebugTableTheme = false; 73 static const bool kDebugResXMLTree = false; 74 static const bool kDebugLibNoisy = false; 75 76 // TODO: This code uses 0xFFFFFFFF converted to bag_set* as a sentinel value. This is bad practice. 77 78 // Standard C isspace() is only required to look at the low byte of its input, so 79 // produces incorrect results for UTF-16 characters. For safety's sake, assume that 80 // any high-byte UTF-16 code point is not whitespace. 81 inline int isspace16(char16_t c) { 82 return (c < 0x0080 && isspace(c)); 83 } 84 85 template<typename T> 86 inline static T max(T a, T b) { 87 return a > b ? a : b; 88 } 89 90 // range checked; guaranteed to NUL-terminate within the stated number of available slots 91 // NOTE: if this truncates the dst string due to running out of space, no attempt is 92 // made to avoid splitting surrogate pairs. 93 static void strcpy16_dtoh(char16_t* dst, const uint16_t* src, size_t avail) 94 { 95 char16_t* last = dst + avail - 1; 96 while (*src && (dst < last)) { 97 char16_t s = dtohs(static_cast<char16_t>(*src)); 98 *dst++ = s; 99 src++; 100 } 101 *dst = 0; 102 } 103 104 static status_t validate_chunk(const ResChunk_header* chunk, 105 size_t minSize, 106 const uint8_t* dataEnd, 107 const char* name) 108 { 109 const uint16_t headerSize = dtohs(chunk->headerSize); 110 const uint32_t size = dtohl(chunk->size); 111 112 if (headerSize >= minSize) { 113 if (headerSize <= size) { 114 if (((headerSize|size)&0x3) == 0) { 115 if ((size_t)size <= (size_t)(dataEnd-((const uint8_t*)chunk))) { 116 return NO_ERROR; 117 } 118 ALOGW("%s data size 0x%x extends beyond resource end %p.", 119 name, size, (void*)(dataEnd-((const uint8_t*)chunk))); 120 return BAD_TYPE; 121 } 122 ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.", 123 name, (int)size, (int)headerSize); 124 return BAD_TYPE; 125 } 126 ALOGW("%s size 0x%x is smaller than header size 0x%x.", 127 name, size, headerSize); 128 return BAD_TYPE; 129 } 130 ALOGW("%s header size 0x%04x is too small.", 131 name, headerSize); 132 return BAD_TYPE; 133 } 134 135 static void fill9patchOffsets(Res_png_9patch* patch) { 136 patch->xDivsOffset = sizeof(Res_png_9patch); 137 patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t)); 138 patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t)); 139 } 140 141 inline void Res_value::copyFrom_dtoh(const Res_value& src) 142 { 143 size = dtohs(src.size); 144 res0 = src.res0; 145 dataType = src.dataType; 146 data = dtohl(src.data); 147 } 148 149 void Res_png_9patch::deviceToFile() 150 { 151 int32_t* xDivs = getXDivs(); 152 for (int i = 0; i < numXDivs; i++) { 153 xDivs[i] = htonl(xDivs[i]); 154 } 155 int32_t* yDivs = getYDivs(); 156 for (int i = 0; i < numYDivs; i++) { 157 yDivs[i] = htonl(yDivs[i]); 158 } 159 paddingLeft = htonl(paddingLeft); 160 paddingRight = htonl(paddingRight); 161 paddingTop = htonl(paddingTop); 162 paddingBottom = htonl(paddingBottom); 163 uint32_t* colors = getColors(); 164 for (int i=0; i<numColors; i++) { 165 colors[i] = htonl(colors[i]); 166 } 167 } 168 169 void Res_png_9patch::fileToDevice() 170 { 171 int32_t* xDivs = getXDivs(); 172 for (int i = 0; i < numXDivs; i++) { 173 xDivs[i] = ntohl(xDivs[i]); 174 } 175 int32_t* yDivs = getYDivs(); 176 for (int i = 0; i < numYDivs; i++) { 177 yDivs[i] = ntohl(yDivs[i]); 178 } 179 paddingLeft = ntohl(paddingLeft); 180 paddingRight = ntohl(paddingRight); 181 paddingTop = ntohl(paddingTop); 182 paddingBottom = ntohl(paddingBottom); 183 uint32_t* colors = getColors(); 184 for (int i=0; i<numColors; i++) { 185 colors[i] = ntohl(colors[i]); 186 } 187 } 188 189 size_t Res_png_9patch::serializedSize() const 190 { 191 // The size of this struct is 32 bytes on the 32-bit target system 192 // 4 * int8_t 193 // 4 * int32_t 194 // 3 * uint32_t 195 return 32 196 + numXDivs * sizeof(int32_t) 197 + numYDivs * sizeof(int32_t) 198 + numColors * sizeof(uint32_t); 199 } 200 201 void* Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs, 202 const int32_t* yDivs, const uint32_t* colors) 203 { 204 // Use calloc since we're going to leave a few holes in the data 205 // and want this to run cleanly under valgrind 206 void* newData = calloc(1, patch.serializedSize()); 207 serialize(patch, xDivs, yDivs, colors, newData); 208 return newData; 209 } 210 211 void Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs, 212 const int32_t* yDivs, const uint32_t* colors, void* outData) 213 { 214 uint8_t* data = (uint8_t*) outData; 215 memcpy(data, &patch.wasDeserialized, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors 216 memcpy(data + 12, &patch.paddingLeft, 16); // copy paddingXXXX 217 data += 32; 218 219 memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t)); 220 data += patch.numXDivs * sizeof(int32_t); 221 memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t)); 222 data += patch.numYDivs * sizeof(int32_t); 223 memcpy(data, colors, patch.numColors * sizeof(uint32_t)); 224 225 fill9patchOffsets(reinterpret_cast<Res_png_9patch*>(outData)); 226 } 227 228 static bool assertIdmapHeader(const void* idmap, size_t size) { 229 if (reinterpret_cast<uintptr_t>(idmap) & 0x03) { 230 ALOGE("idmap: header is not word aligned"); 231 return false; 232 } 233 234 if (size < ResTable::IDMAP_HEADER_SIZE_BYTES) { 235 ALOGW("idmap: header too small (%d bytes)", (uint32_t) size); 236 return false; 237 } 238 239 const uint32_t magic = htodl(*reinterpret_cast<const uint32_t*>(idmap)); 240 if (magic != IDMAP_MAGIC) { 241 ALOGW("idmap: no magic found in header (is 0x%08x, expected 0x%08x)", 242 magic, IDMAP_MAGIC); 243 return false; 244 } 245 246 const uint32_t version = htodl(*(reinterpret_cast<const uint32_t*>(idmap) + 1)); 247 if (version != IDMAP_CURRENT_VERSION) { 248 // We are strict about versions because files with this format are 249 // auto-generated and don't need backwards compatibility. 250 ALOGW("idmap: version mismatch in header (is 0x%08x, expected 0x%08x)", 251 version, IDMAP_CURRENT_VERSION); 252 return false; 253 } 254 return true; 255 } 256 257 class IdmapEntries { 258 public: 259 IdmapEntries() : mData(NULL) {} 260 261 bool hasEntries() const { 262 if (mData == NULL) { 263 return false; 264 } 265 266 return (dtohs(*mData) > 0); 267 } 268 269 size_t byteSize() const { 270 if (mData == NULL) { 271 return 0; 272 } 273 uint16_t entryCount = dtohs(mData[2]); 274 return (sizeof(uint16_t) * 4) + (sizeof(uint32_t) * static_cast<size_t>(entryCount)); 275 } 276 277 uint8_t targetTypeId() const { 278 if (mData == NULL) { 279 return 0; 280 } 281 return dtohs(mData[0]); 282 } 283 284 uint8_t overlayTypeId() const { 285 if (mData == NULL) { 286 return 0; 287 } 288 return dtohs(mData[1]); 289 } 290 291 status_t setTo(const void* entryHeader, size_t size) { 292 if (reinterpret_cast<uintptr_t>(entryHeader) & 0x03) { 293 ALOGE("idmap: entry header is not word aligned"); 294 return UNKNOWN_ERROR; 295 } 296 297 if (size < sizeof(uint16_t) * 4) { 298 ALOGE("idmap: entry header is too small (%u bytes)", (uint32_t) size); 299 return UNKNOWN_ERROR; 300 } 301 302 const uint16_t* header = reinterpret_cast<const uint16_t*>(entryHeader); 303 const uint16_t targetTypeId = dtohs(header[0]); 304 const uint16_t overlayTypeId = dtohs(header[1]); 305 if (targetTypeId == 0 || overlayTypeId == 0 || targetTypeId > 255 || overlayTypeId > 255) { 306 ALOGE("idmap: invalid type map (%u -> %u)", targetTypeId, overlayTypeId); 307 return UNKNOWN_ERROR; 308 } 309 310 uint16_t entryCount = dtohs(header[2]); 311 if (size < sizeof(uint32_t) * (entryCount + 2)) { 312 ALOGE("idmap: too small (%u bytes) for the number of entries (%u)", 313 (uint32_t) size, (uint32_t) entryCount); 314 return UNKNOWN_ERROR; 315 } 316 mData = header; 317 return NO_ERROR; 318 } 319 320 status_t lookup(uint16_t entryId, uint16_t* outEntryId) const { 321 uint16_t entryCount = dtohs(mData[2]); 322 uint16_t offset = dtohs(mData[3]); 323 324 if (entryId < offset) { 325 // The entry is not present in this idmap 326 return BAD_INDEX; 327 } 328 329 entryId -= offset; 330 331 if (entryId >= entryCount) { 332 // The entry is not present in this idmap 333 return BAD_INDEX; 334 } 335 336 // It is safe to access the type here without checking the size because 337 // we have checked this when it was first loaded. 338 const uint32_t* entries = reinterpret_cast<const uint32_t*>(mData) + 2; 339 uint32_t mappedEntry = dtohl(entries[entryId]); 340 if (mappedEntry == 0xffffffff) { 341 // This entry is not present in this idmap 342 return BAD_INDEX; 343 } 344 *outEntryId = static_cast<uint16_t>(mappedEntry); 345 return NO_ERROR; 346 } 347 348 private: 349 const uint16_t* mData; 350 }; 351 352 status_t parseIdmap(const void* idmap, size_t size, uint8_t* outPackageId, KeyedVector<uint8_t, IdmapEntries>* outMap) { 353 if (!assertIdmapHeader(idmap, size)) { 354 return UNKNOWN_ERROR; 355 } 356 357 size -= ResTable::IDMAP_HEADER_SIZE_BYTES; 358 if (size < sizeof(uint16_t) * 2) { 359 ALOGE("idmap: too small to contain any mapping"); 360 return UNKNOWN_ERROR; 361 } 362 363 const uint16_t* data = reinterpret_cast<const uint16_t*>( 364 reinterpret_cast<const uint8_t*>(idmap) + ResTable::IDMAP_HEADER_SIZE_BYTES); 365 366 uint16_t targetPackageId = dtohs(*(data++)); 367 if (targetPackageId == 0 || targetPackageId > 255) { 368 ALOGE("idmap: target package ID is invalid (%02x)", targetPackageId); 369 return UNKNOWN_ERROR; 370 } 371 372 uint16_t mapCount = dtohs(*(data++)); 373 if (mapCount == 0) { 374 ALOGE("idmap: no mappings"); 375 return UNKNOWN_ERROR; 376 } 377 378 if (mapCount > 255) { 379 ALOGW("idmap: too many mappings. Only 255 are possible but %u are present", (uint32_t) mapCount); 380 } 381 382 while (size > sizeof(uint16_t) * 4) { 383 IdmapEntries entries; 384 status_t err = entries.setTo(data, size); 385 if (err != NO_ERROR) { 386 return err; 387 } 388 389 ssize_t index = outMap->add(entries.overlayTypeId(), entries); 390 if (index < 0) { 391 return NO_MEMORY; 392 } 393 394 data += entries.byteSize() / sizeof(uint16_t); 395 size -= entries.byteSize(); 396 } 397 398 if (outPackageId != NULL) { 399 *outPackageId = static_cast<uint8_t>(targetPackageId); 400 } 401 return NO_ERROR; 402 } 403 404 Res_png_9patch* Res_png_9patch::deserialize(void* inData) 405 { 406 407 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(inData); 408 patch->wasDeserialized = true; 409 fill9patchOffsets(patch); 410 411 return patch; 412 } 413 414 // -------------------------------------------------------------------- 415 // -------------------------------------------------------------------- 416 // -------------------------------------------------------------------- 417 418 ResStringPool::ResStringPool() 419 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 420 { 421 } 422 423 ResStringPool::ResStringPool(const void* data, size_t size, bool copyData) 424 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 425 { 426 setTo(data, size, copyData); 427 } 428 429 ResStringPool::~ResStringPool() 430 { 431 uninit(); 432 } 433 434 void ResStringPool::setToEmpty() 435 { 436 uninit(); 437 438 mOwnedData = calloc(1, sizeof(ResStringPool_header)); 439 ResStringPool_header* header = (ResStringPool_header*) mOwnedData; 440 mSize = 0; 441 mEntries = NULL; 442 mStrings = NULL; 443 mStringPoolSize = 0; 444 mEntryStyles = NULL; 445 mStyles = NULL; 446 mStylePoolSize = 0; 447 mHeader = (const ResStringPool_header*) header; 448 } 449 450 status_t ResStringPool::setTo(const void* data, size_t size, bool copyData) 451 { 452 if (!data || !size) { 453 return (mError=BAD_TYPE); 454 } 455 456 uninit(); 457 458 const bool notDeviceEndian = htods(0xf0) != 0xf0; 459 460 if (copyData || notDeviceEndian) { 461 mOwnedData = malloc(size); 462 if (mOwnedData == NULL) { 463 return (mError=NO_MEMORY); 464 } 465 memcpy(mOwnedData, data, size); 466 data = mOwnedData; 467 } 468 469 mHeader = (const ResStringPool_header*)data; 470 471 if (notDeviceEndian) { 472 ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader); 473 h->header.headerSize = dtohs(mHeader->header.headerSize); 474 h->header.type = dtohs(mHeader->header.type); 475 h->header.size = dtohl(mHeader->header.size); 476 h->stringCount = dtohl(mHeader->stringCount); 477 h->styleCount = dtohl(mHeader->styleCount); 478 h->flags = dtohl(mHeader->flags); 479 h->stringsStart = dtohl(mHeader->stringsStart); 480 h->stylesStart = dtohl(mHeader->stylesStart); 481 } 482 483 if (mHeader->header.headerSize > mHeader->header.size 484 || mHeader->header.size > size) { 485 ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n", 486 (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size); 487 return (mError=BAD_TYPE); 488 } 489 mSize = mHeader->header.size; 490 mEntries = (const uint32_t*) 491 (((const uint8_t*)data)+mHeader->header.headerSize); 492 493 if (mHeader->stringCount > 0) { 494 if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount) // uint32 overflow? 495 || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))) 496 > size) { 497 ALOGW("Bad string block: entry of %d items extends past data size %d\n", 498 (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))), 499 (int)size); 500 return (mError=BAD_TYPE); 501 } 502 503 size_t charSize; 504 if (mHeader->flags&ResStringPool_header::UTF8_FLAG) { 505 charSize = sizeof(uint8_t); 506 } else { 507 charSize = sizeof(uint16_t); 508 } 509 510 // There should be at least space for the smallest string 511 // (2 bytes length, null terminator). 512 if (mHeader->stringsStart >= (mSize - sizeof(uint16_t))) { 513 ALOGW("Bad string block: string pool starts at %d, after total size %d\n", 514 (int)mHeader->stringsStart, (int)mHeader->header.size); 515 return (mError=BAD_TYPE); 516 } 517 518 mStrings = (const void*) 519 (((const uint8_t*)data) + mHeader->stringsStart); 520 521 if (mHeader->styleCount == 0) { 522 mStringPoolSize = (mSize - mHeader->stringsStart) / charSize; 523 } else { 524 // check invariant: styles starts before end of data 525 if (mHeader->stylesStart >= (mSize - sizeof(uint16_t))) { 526 ALOGW("Bad style block: style block starts at %d past data size of %d\n", 527 (int)mHeader->stylesStart, (int)mHeader->header.size); 528 return (mError=BAD_TYPE); 529 } 530 // check invariant: styles follow the strings 531 if (mHeader->stylesStart <= mHeader->stringsStart) { 532 ALOGW("Bad style block: style block starts at %d, before strings at %d\n", 533 (int)mHeader->stylesStart, (int)mHeader->stringsStart); 534 return (mError=BAD_TYPE); 535 } 536 mStringPoolSize = 537 (mHeader->stylesStart-mHeader->stringsStart)/charSize; 538 } 539 540 // check invariant: stringCount > 0 requires a string pool to exist 541 if (mStringPoolSize == 0) { 542 ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount); 543 return (mError=BAD_TYPE); 544 } 545 546 if (notDeviceEndian) { 547 size_t i; 548 uint32_t* e = const_cast<uint32_t*>(mEntries); 549 for (i=0; i<mHeader->stringCount; i++) { 550 e[i] = dtohl(mEntries[i]); 551 } 552 if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) { 553 const uint16_t* strings = (const uint16_t*)mStrings; 554 uint16_t* s = const_cast<uint16_t*>(strings); 555 for (i=0; i<mStringPoolSize; i++) { 556 s[i] = dtohs(strings[i]); 557 } 558 } 559 } 560 561 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG && 562 ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) || 563 (!mHeader->flags&ResStringPool_header::UTF8_FLAG && 564 ((uint16_t*)mStrings)[mStringPoolSize-1] != 0)) { 565 ALOGW("Bad string block: last string is not 0-terminated\n"); 566 return (mError=BAD_TYPE); 567 } 568 } else { 569 mStrings = NULL; 570 mStringPoolSize = 0; 571 } 572 573 if (mHeader->styleCount > 0) { 574 mEntryStyles = mEntries + mHeader->stringCount; 575 // invariant: integer overflow in calculating mEntryStyles 576 if (mEntryStyles < mEntries) { 577 ALOGW("Bad string block: integer overflow finding styles\n"); 578 return (mError=BAD_TYPE); 579 } 580 581 if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) { 582 ALOGW("Bad string block: entry of %d styles extends past data size %d\n", 583 (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader), 584 (int)size); 585 return (mError=BAD_TYPE); 586 } 587 mStyles = (const uint32_t*) 588 (((const uint8_t*)data)+mHeader->stylesStart); 589 if (mHeader->stylesStart >= mHeader->header.size) { 590 ALOGW("Bad string block: style pool starts %d, after total size %d\n", 591 (int)mHeader->stylesStart, (int)mHeader->header.size); 592 return (mError=BAD_TYPE); 593 } 594 mStylePoolSize = 595 (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t); 596 597 if (notDeviceEndian) { 598 size_t i; 599 uint32_t* e = const_cast<uint32_t*>(mEntryStyles); 600 for (i=0; i<mHeader->styleCount; i++) { 601 e[i] = dtohl(mEntryStyles[i]); 602 } 603 uint32_t* s = const_cast<uint32_t*>(mStyles); 604 for (i=0; i<mStylePoolSize; i++) { 605 s[i] = dtohl(mStyles[i]); 606 } 607 } 608 609 const ResStringPool_span endSpan = { 610 { htodl(ResStringPool_span::END) }, 611 htodl(ResStringPool_span::END), htodl(ResStringPool_span::END) 612 }; 613 if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))], 614 &endSpan, sizeof(endSpan)) != 0) { 615 ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n"); 616 return (mError=BAD_TYPE); 617 } 618 } else { 619 mEntryStyles = NULL; 620 mStyles = NULL; 621 mStylePoolSize = 0; 622 } 623 624 return (mError=NO_ERROR); 625 } 626 627 status_t ResStringPool::getError() const 628 { 629 return mError; 630 } 631 632 void ResStringPool::uninit() 633 { 634 mError = NO_INIT; 635 if (mHeader != NULL && mCache != NULL) { 636 for (size_t x = 0; x < mHeader->stringCount; x++) { 637 if (mCache[x] != NULL) { 638 free(mCache[x]); 639 mCache[x] = NULL; 640 } 641 } 642 free(mCache); 643 mCache = NULL; 644 } 645 if (mOwnedData) { 646 free(mOwnedData); 647 mOwnedData = NULL; 648 } 649 } 650 651 /** 652 * Strings in UTF-16 format have length indicated by a length encoded in the 653 * stored data. It is either 1 or 2 characters of length data. This allows a 654 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that 655 * much data in a string, you're abusing them. 656 * 657 * If the high bit is set, then there are two characters or 4 bytes of length 658 * data encoded. In that case, drop the high bit of the first character and 659 * add it together with the next character. 660 */ 661 static inline size_t 662 decodeLength(const uint16_t** str) 663 { 664 size_t len = **str; 665 if ((len & 0x8000) != 0) { 666 (*str)++; 667 len = ((len & 0x7FFF) << 16) | **str; 668 } 669 (*str)++; 670 return len; 671 } 672 673 /** 674 * Strings in UTF-8 format have length indicated by a length encoded in the 675 * stored data. It is either 1 or 2 characters of length data. This allows a 676 * maximum length of 0x7FFF (32767 bytes), but you should consider storing 677 * text in another way if you're using that much data in a single string. 678 * 679 * If the high bit is set, then there are two characters or 2 bytes of length 680 * data encoded. In that case, drop the high bit of the first character and 681 * add it together with the next character. 682 */ 683 static inline size_t 684 decodeLength(const uint8_t** str) 685 { 686 size_t len = **str; 687 if ((len & 0x80) != 0) { 688 (*str)++; 689 len = ((len & 0x7F) << 8) | **str; 690 } 691 (*str)++; 692 return len; 693 } 694 695 const char16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const 696 { 697 if (mError == NO_ERROR && idx < mHeader->stringCount) { 698 const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0; 699 const uint32_t off = mEntries[idx]/(isUTF8?sizeof(uint8_t):sizeof(uint16_t)); 700 if (off < (mStringPoolSize-1)) { 701 if (!isUTF8) { 702 const uint16_t* strings = (uint16_t*)mStrings; 703 const uint16_t* str = strings+off; 704 705 *u16len = decodeLength(&str); 706 if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) { 707 // Reject malformed (non null-terminated) strings 708 if (str[*u16len] != 0x0000) { 709 ALOGW("Bad string block: string #%d is not null-terminated", 710 (int)idx); 711 return NULL; 712 } 713 return reinterpret_cast<const char16_t*>(str); 714 } else { 715 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 716 (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize); 717 } 718 } else { 719 const uint8_t* strings = (uint8_t*)mStrings; 720 const uint8_t* u8str = strings+off; 721 722 *u16len = decodeLength(&u8str); 723 size_t u8len = decodeLength(&u8str); 724 725 // encLen must be less than 0x7FFF due to encoding. 726 if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) { 727 AutoMutex lock(mDecodeLock); 728 729 if (mCache == NULL) { 730 #ifndef HAVE_ANDROID_OS 731 if (kDebugStringPoolNoisy) { 732 ALOGI("CREATING STRING CACHE OF %zu bytes", 733 mHeader->stringCount*sizeof(char16_t**)); 734 } 735 #else 736 // We do not want to be in this case when actually running Android. 737 ALOGW("CREATING STRING CACHE OF %zu bytes", 738 static_cast<size_t>(mHeader->stringCount*sizeof(char16_t**))); 739 #endif 740 mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**)); 741 if (mCache == NULL) { 742 ALOGW("No memory trying to allocate decode cache table of %d bytes\n", 743 (int)(mHeader->stringCount*sizeof(char16_t**))); 744 return NULL; 745 } 746 } 747 748 if (mCache[idx] != NULL) { 749 return mCache[idx]; 750 } 751 752 ssize_t actualLen = utf8_to_utf16_length(u8str, u8len); 753 if (actualLen < 0 || (size_t)actualLen != *u16len) { 754 ALOGW("Bad string block: string #%lld decoded length is not correct " 755 "%lld vs %llu\n", 756 (long long)idx, (long long)actualLen, (long long)*u16len); 757 return NULL; 758 } 759 760 // Reject malformed (non null-terminated) strings 761 if (u8str[u8len] != 0x00) { 762 ALOGW("Bad string block: string #%d is not null-terminated", 763 (int)idx); 764 return NULL; 765 } 766 767 char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t)); 768 if (!u16str) { 769 ALOGW("No memory when trying to allocate decode cache for string #%d\n", 770 (int)idx); 771 return NULL; 772 } 773 774 if (kDebugStringPoolNoisy) { 775 ALOGI("Caching UTF8 string: %s", u8str); 776 } 777 utf8_to_utf16(u8str, u8len, u16str); 778 mCache[idx] = u16str; 779 return u16str; 780 } else { 781 ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n", 782 (long long)idx, (long long)(u8str+u8len-strings), 783 (long long)mStringPoolSize); 784 } 785 } 786 } else { 787 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 788 (int)idx, (int)(off*sizeof(uint16_t)), 789 (int)(mStringPoolSize*sizeof(uint16_t))); 790 } 791 } 792 return NULL; 793 } 794 795 const char* ResStringPool::string8At(size_t idx, size_t* outLen) const 796 { 797 if (mError == NO_ERROR && idx < mHeader->stringCount) { 798 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) { 799 return NULL; 800 } 801 const uint32_t off = mEntries[idx]/sizeof(char); 802 if (off < (mStringPoolSize-1)) { 803 const uint8_t* strings = (uint8_t*)mStrings; 804 const uint8_t* str = strings+off; 805 *outLen = decodeLength(&str); 806 size_t encLen = decodeLength(&str); 807 if ((uint32_t)(str+encLen-strings) < mStringPoolSize) { 808 return (const char*)str; 809 } else { 810 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 811 (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize); 812 } 813 } else { 814 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 815 (int)idx, (int)(off*sizeof(uint16_t)), 816 (int)(mStringPoolSize*sizeof(uint16_t))); 817 } 818 } 819 return NULL; 820 } 821 822 const String8 ResStringPool::string8ObjectAt(size_t idx) const 823 { 824 size_t len; 825 const char *str = string8At(idx, &len); 826 if (str != NULL) { 827 return String8(str, len); 828 } 829 830 const char16_t *str16 = stringAt(idx, &len); 831 if (str16 != NULL) { 832 return String8(str16, len); 833 } 834 return String8(); 835 } 836 837 const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const 838 { 839 return styleAt(ref.index); 840 } 841 842 const ResStringPool_span* ResStringPool::styleAt(size_t idx) const 843 { 844 if (mError == NO_ERROR && idx < mHeader->styleCount) { 845 const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t)); 846 if (off < mStylePoolSize) { 847 return (const ResStringPool_span*)(mStyles+off); 848 } else { 849 ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n", 850 (int)idx, (int)(off*sizeof(uint32_t)), 851 (int)(mStylePoolSize*sizeof(uint32_t))); 852 } 853 } 854 return NULL; 855 } 856 857 ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const 858 { 859 if (mError != NO_ERROR) { 860 return mError; 861 } 862 863 size_t len; 864 865 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) { 866 if (kDebugStringPoolNoisy) { 867 ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()); 868 } 869 870 // The string pool contains UTF 8 strings; we don't want to cause 871 // temporary UTF-16 strings to be created as we search. 872 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 873 // Do a binary search for the string... this is a little tricky, 874 // because the strings are sorted with strzcmp16(). So to match 875 // the ordering, we need to convert strings in the pool to UTF-16. 876 // But we don't want to hit the cache, so instead we will have a 877 // local temporary allocation for the conversions. 878 char16_t* convBuffer = (char16_t*)malloc(strLen+4); 879 ssize_t l = 0; 880 ssize_t h = mHeader->stringCount-1; 881 882 ssize_t mid; 883 while (l <= h) { 884 mid = l + (h - l)/2; 885 const uint8_t* s = (const uint8_t*)string8At(mid, &len); 886 int c; 887 if (s != NULL) { 888 char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3); 889 *end = 0; 890 c = strzcmp16(convBuffer, end-convBuffer, str, strLen); 891 } else { 892 c = -1; 893 } 894 if (kDebugStringPoolNoisy) { 895 ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 896 (const char*)s, c, (int)l, (int)mid, (int)h); 897 } 898 if (c == 0) { 899 if (kDebugStringPoolNoisy) { 900 ALOGI("MATCH!"); 901 } 902 free(convBuffer); 903 return mid; 904 } else if (c < 0) { 905 l = mid + 1; 906 } else { 907 h = mid - 1; 908 } 909 } 910 free(convBuffer); 911 } else { 912 // It is unusual to get the ID from an unsorted string block... 913 // most often this happens because we want to get IDs for style 914 // span tags; since those always appear at the end of the string 915 // block, start searching at the back. 916 String8 str8(str, strLen); 917 const size_t str8Len = str8.size(); 918 for (int i=mHeader->stringCount-1; i>=0; i--) { 919 const char* s = string8At(i, &len); 920 if (kDebugStringPoolNoisy) { 921 ALOGI("Looking at %s, i=%d\n", String8(s).string(), i); 922 } 923 if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) { 924 if (kDebugStringPoolNoisy) { 925 ALOGI("MATCH!"); 926 } 927 return i; 928 } 929 } 930 } 931 932 } else { 933 if (kDebugStringPoolNoisy) { 934 ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()); 935 } 936 937 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 938 // Do a binary search for the string... 939 ssize_t l = 0; 940 ssize_t h = mHeader->stringCount-1; 941 942 ssize_t mid; 943 while (l <= h) { 944 mid = l + (h - l)/2; 945 const char16_t* s = stringAt(mid, &len); 946 int c = s ? strzcmp16(s, len, str, strLen) : -1; 947 if (kDebugStringPoolNoisy) { 948 ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 949 String8(s).string(), c, (int)l, (int)mid, (int)h); 950 } 951 if (c == 0) { 952 if (kDebugStringPoolNoisy) { 953 ALOGI("MATCH!"); 954 } 955 return mid; 956 } else if (c < 0) { 957 l = mid + 1; 958 } else { 959 h = mid - 1; 960 } 961 } 962 } else { 963 // It is unusual to get the ID from an unsorted string block... 964 // most often this happens because we want to get IDs for style 965 // span tags; since those always appear at the end of the string 966 // block, start searching at the back. 967 for (int i=mHeader->stringCount-1; i>=0; i--) { 968 const char16_t* s = stringAt(i, &len); 969 if (kDebugStringPoolNoisy) { 970 ALOGI("Looking at %s, i=%d\n", String8(s).string(), i); 971 } 972 if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) { 973 if (kDebugStringPoolNoisy) { 974 ALOGI("MATCH!"); 975 } 976 return i; 977 } 978 } 979 } 980 } 981 982 return NAME_NOT_FOUND; 983 } 984 985 size_t ResStringPool::size() const 986 { 987 return (mError == NO_ERROR) ? mHeader->stringCount : 0; 988 } 989 990 size_t ResStringPool::styleCount() const 991 { 992 return (mError == NO_ERROR) ? mHeader->styleCount : 0; 993 } 994 995 size_t ResStringPool::bytes() const 996 { 997 return (mError == NO_ERROR) ? mHeader->header.size : 0; 998 } 999 1000 bool ResStringPool::isSorted() const 1001 { 1002 return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0; 1003 } 1004 1005 bool ResStringPool::isUTF8() const 1006 { 1007 return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0; 1008 } 1009 1010 // -------------------------------------------------------------------- 1011 // -------------------------------------------------------------------- 1012 // -------------------------------------------------------------------- 1013 1014 ResXMLParser::ResXMLParser(const ResXMLTree& tree) 1015 : mTree(tree), mEventCode(BAD_DOCUMENT) 1016 { 1017 } 1018 1019 void ResXMLParser::restart() 1020 { 1021 mCurNode = NULL; 1022 mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT; 1023 } 1024 const ResStringPool& ResXMLParser::getStrings() const 1025 { 1026 return mTree.mStrings; 1027 } 1028 1029 ResXMLParser::event_code_t ResXMLParser::getEventType() const 1030 { 1031 return mEventCode; 1032 } 1033 1034 ResXMLParser::event_code_t ResXMLParser::next() 1035 { 1036 if (mEventCode == START_DOCUMENT) { 1037 mCurNode = mTree.mRootNode; 1038 mCurExt = mTree.mRootExt; 1039 return (mEventCode=mTree.mRootCode); 1040 } else if (mEventCode >= FIRST_CHUNK_CODE) { 1041 return nextNode(); 1042 } 1043 return mEventCode; 1044 } 1045 1046 int32_t ResXMLParser::getCommentID() const 1047 { 1048 return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1; 1049 } 1050 1051 const char16_t* ResXMLParser::getComment(size_t* outLen) const 1052 { 1053 int32_t id = getCommentID(); 1054 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1055 } 1056 1057 uint32_t ResXMLParser::getLineNumber() const 1058 { 1059 return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1; 1060 } 1061 1062 int32_t ResXMLParser::getTextID() const 1063 { 1064 if (mEventCode == TEXT) { 1065 return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index); 1066 } 1067 return -1; 1068 } 1069 1070 const char16_t* ResXMLParser::getText(size_t* outLen) const 1071 { 1072 int32_t id = getTextID(); 1073 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1074 } 1075 1076 ssize_t ResXMLParser::getTextValue(Res_value* outValue) const 1077 { 1078 if (mEventCode == TEXT) { 1079 outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData); 1080 return sizeof(Res_value); 1081 } 1082 return BAD_TYPE; 1083 } 1084 1085 int32_t ResXMLParser::getNamespacePrefixID() const 1086 { 1087 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 1088 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index); 1089 } 1090 return -1; 1091 } 1092 1093 const char16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const 1094 { 1095 int32_t id = getNamespacePrefixID(); 1096 //printf("prefix=%d event=%p\n", id, mEventCode); 1097 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1098 } 1099 1100 int32_t ResXMLParser::getNamespaceUriID() const 1101 { 1102 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 1103 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index); 1104 } 1105 return -1; 1106 } 1107 1108 const char16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const 1109 { 1110 int32_t id = getNamespaceUriID(); 1111 //printf("uri=%d event=%p\n", id, mEventCode); 1112 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1113 } 1114 1115 int32_t ResXMLParser::getElementNamespaceID() const 1116 { 1117 if (mEventCode == START_TAG) { 1118 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index); 1119 } 1120 if (mEventCode == END_TAG) { 1121 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index); 1122 } 1123 return -1; 1124 } 1125 1126 const char16_t* ResXMLParser::getElementNamespace(size_t* outLen) const 1127 { 1128 int32_t id = getElementNamespaceID(); 1129 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1130 } 1131 1132 int32_t ResXMLParser::getElementNameID() const 1133 { 1134 if (mEventCode == START_TAG) { 1135 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index); 1136 } 1137 if (mEventCode == END_TAG) { 1138 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index); 1139 } 1140 return -1; 1141 } 1142 1143 const char16_t* ResXMLParser::getElementName(size_t* outLen) const 1144 { 1145 int32_t id = getElementNameID(); 1146 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1147 } 1148 1149 size_t ResXMLParser::getAttributeCount() const 1150 { 1151 if (mEventCode == START_TAG) { 1152 return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount); 1153 } 1154 return 0; 1155 } 1156 1157 int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const 1158 { 1159 if (mEventCode == START_TAG) { 1160 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1161 if (idx < dtohs(tag->attributeCount)) { 1162 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1163 (((const uint8_t*)tag) 1164 + dtohs(tag->attributeStart) 1165 + (dtohs(tag->attributeSize)*idx)); 1166 return dtohl(attr->ns.index); 1167 } 1168 } 1169 return -2; 1170 } 1171 1172 const char16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const 1173 { 1174 int32_t id = getAttributeNamespaceID(idx); 1175 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 1176 if (kDebugXMLNoisy) { 1177 printf("getAttributeNamespace 0x%zx=0x%x\n", idx, id); 1178 } 1179 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1180 } 1181 1182 const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const 1183 { 1184 int32_t id = getAttributeNamespaceID(idx); 1185 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 1186 if (kDebugXMLNoisy) { 1187 printf("getAttributeNamespace 0x%zx=0x%x\n", idx, id); 1188 } 1189 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL; 1190 } 1191 1192 int32_t ResXMLParser::getAttributeNameID(size_t idx) const 1193 { 1194 if (mEventCode == START_TAG) { 1195 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1196 if (idx < dtohs(tag->attributeCount)) { 1197 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1198 (((const uint8_t*)tag) 1199 + dtohs(tag->attributeStart) 1200 + (dtohs(tag->attributeSize)*idx)); 1201 return dtohl(attr->name.index); 1202 } 1203 } 1204 return -1; 1205 } 1206 1207 const char16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const 1208 { 1209 int32_t id = getAttributeNameID(idx); 1210 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 1211 if (kDebugXMLNoisy) { 1212 printf("getAttributeName 0x%zx=0x%x\n", idx, id); 1213 } 1214 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1215 } 1216 1217 const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const 1218 { 1219 int32_t id = getAttributeNameID(idx); 1220 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 1221 if (kDebugXMLNoisy) { 1222 printf("getAttributeName 0x%zx=0x%x\n", idx, id); 1223 } 1224 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL; 1225 } 1226 1227 uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const 1228 { 1229 int32_t id = getAttributeNameID(idx); 1230 if (id >= 0 && (size_t)id < mTree.mNumResIds) { 1231 uint32_t resId = dtohl(mTree.mResIds[id]); 1232 if (mTree.mDynamicRefTable != NULL) { 1233 mTree.mDynamicRefTable->lookupResourceId(&resId); 1234 } 1235 return resId; 1236 } 1237 return 0; 1238 } 1239 1240 int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const 1241 { 1242 if (mEventCode == START_TAG) { 1243 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1244 if (idx < dtohs(tag->attributeCount)) { 1245 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1246 (((const uint8_t*)tag) 1247 + dtohs(tag->attributeStart) 1248 + (dtohs(tag->attributeSize)*idx)); 1249 return dtohl(attr->rawValue.index); 1250 } 1251 } 1252 return -1; 1253 } 1254 1255 const char16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const 1256 { 1257 int32_t id = getAttributeValueStringID(idx); 1258 if (kDebugXMLNoisy) { 1259 printf("getAttributeValue 0x%zx=0x%x\n", idx, id); 1260 } 1261 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1262 } 1263 1264 int32_t ResXMLParser::getAttributeDataType(size_t idx) const 1265 { 1266 if (mEventCode == START_TAG) { 1267 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1268 if (idx < dtohs(tag->attributeCount)) { 1269 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1270 (((const uint8_t*)tag) 1271 + dtohs(tag->attributeStart) 1272 + (dtohs(tag->attributeSize)*idx)); 1273 uint8_t type = attr->typedValue.dataType; 1274 if (type != Res_value::TYPE_DYNAMIC_REFERENCE) { 1275 return type; 1276 } 1277 1278 // This is a dynamic reference. We adjust those references 1279 // to regular references at this level, so lie to the caller. 1280 return Res_value::TYPE_REFERENCE; 1281 } 1282 } 1283 return Res_value::TYPE_NULL; 1284 } 1285 1286 int32_t ResXMLParser::getAttributeData(size_t idx) const 1287 { 1288 if (mEventCode == START_TAG) { 1289 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1290 if (idx < dtohs(tag->attributeCount)) { 1291 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1292 (((const uint8_t*)tag) 1293 + dtohs(tag->attributeStart) 1294 + (dtohs(tag->attributeSize)*idx)); 1295 if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE || 1296 mTree.mDynamicRefTable == NULL) { 1297 return dtohl(attr->typedValue.data); 1298 } 1299 1300 uint32_t data = dtohl(attr->typedValue.data); 1301 if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) { 1302 return data; 1303 } 1304 } 1305 } 1306 return 0; 1307 } 1308 1309 ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const 1310 { 1311 if (mEventCode == START_TAG) { 1312 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1313 if (idx < dtohs(tag->attributeCount)) { 1314 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1315 (((const uint8_t*)tag) 1316 + dtohs(tag->attributeStart) 1317 + (dtohs(tag->attributeSize)*idx)); 1318 outValue->copyFrom_dtoh(attr->typedValue); 1319 if (mTree.mDynamicRefTable != NULL && 1320 mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) { 1321 return BAD_TYPE; 1322 } 1323 return sizeof(Res_value); 1324 } 1325 } 1326 return BAD_TYPE; 1327 } 1328 1329 ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const 1330 { 1331 String16 nsStr(ns != NULL ? ns : ""); 1332 String16 attrStr(attr); 1333 return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0, 1334 attrStr.string(), attrStr.size()); 1335 } 1336 1337 ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen, 1338 const char16_t* attr, size_t attrLen) const 1339 { 1340 if (mEventCode == START_TAG) { 1341 if (attr == NULL) { 1342 return NAME_NOT_FOUND; 1343 } 1344 const size_t N = getAttributeCount(); 1345 if (mTree.mStrings.isUTF8()) { 1346 String8 ns8, attr8; 1347 if (ns != NULL) { 1348 ns8 = String8(ns, nsLen); 1349 } 1350 attr8 = String8(attr, attrLen); 1351 if (kDebugStringPoolNoisy) { 1352 ALOGI("indexOfAttribute UTF8 %s (%zu) / %s (%zu)", ns8.string(), nsLen, 1353 attr8.string(), attrLen); 1354 } 1355 for (size_t i=0; i<N; i++) { 1356 size_t curNsLen = 0, curAttrLen = 0; 1357 const char* curNs = getAttributeNamespace8(i, &curNsLen); 1358 const char* curAttr = getAttributeName8(i, &curAttrLen); 1359 if (kDebugStringPoolNoisy) { 1360 ALOGI(" curNs=%s (%zu), curAttr=%s (%zu)", curNs, curNsLen, curAttr, curAttrLen); 1361 } 1362 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen 1363 && memcmp(attr8.string(), curAttr, attrLen) == 0) { 1364 if (ns == NULL) { 1365 if (curNs == NULL) { 1366 if (kDebugStringPoolNoisy) { 1367 ALOGI(" FOUND!"); 1368 } 1369 return i; 1370 } 1371 } else if (curNs != NULL) { 1372 //printf(" --> ns=%s, curNs=%s\n", 1373 // String8(ns).string(), String8(curNs).string()); 1374 if (memcmp(ns8.string(), curNs, nsLen) == 0) { 1375 if (kDebugStringPoolNoisy) { 1376 ALOGI(" FOUND!"); 1377 } 1378 return i; 1379 } 1380 } 1381 } 1382 } 1383 } else { 1384 if (kDebugStringPoolNoisy) { 1385 ALOGI("indexOfAttribute UTF16 %s (%zu) / %s (%zu)", 1386 String8(ns, nsLen).string(), nsLen, 1387 String8(attr, attrLen).string(), attrLen); 1388 } 1389 for (size_t i=0; i<N; i++) { 1390 size_t curNsLen = 0, curAttrLen = 0; 1391 const char16_t* curNs = getAttributeNamespace(i, &curNsLen); 1392 const char16_t* curAttr = getAttributeName(i, &curAttrLen); 1393 if (kDebugStringPoolNoisy) { 1394 ALOGI(" curNs=%s (%zu), curAttr=%s (%zu)", 1395 String8(curNs, curNsLen).string(), curNsLen, 1396 String8(curAttr, curAttrLen).string(), curAttrLen); 1397 } 1398 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen 1399 && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) { 1400 if (ns == NULL) { 1401 if (curNs == NULL) { 1402 if (kDebugStringPoolNoisy) { 1403 ALOGI(" FOUND!"); 1404 } 1405 return i; 1406 } 1407 } else if (curNs != NULL) { 1408 //printf(" --> ns=%s, curNs=%s\n", 1409 // String8(ns).string(), String8(curNs).string()); 1410 if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) { 1411 if (kDebugStringPoolNoisy) { 1412 ALOGI(" FOUND!"); 1413 } 1414 return i; 1415 } 1416 } 1417 } 1418 } 1419 } 1420 } 1421 1422 return NAME_NOT_FOUND; 1423 } 1424 1425 ssize_t ResXMLParser::indexOfID() const 1426 { 1427 if (mEventCode == START_TAG) { 1428 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex); 1429 if (idx > 0) return (idx-1); 1430 } 1431 return NAME_NOT_FOUND; 1432 } 1433 1434 ssize_t ResXMLParser::indexOfClass() const 1435 { 1436 if (mEventCode == START_TAG) { 1437 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex); 1438 if (idx > 0) return (idx-1); 1439 } 1440 return NAME_NOT_FOUND; 1441 } 1442 1443 ssize_t ResXMLParser::indexOfStyle() const 1444 { 1445 if (mEventCode == START_TAG) { 1446 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex); 1447 if (idx > 0) return (idx-1); 1448 } 1449 return NAME_NOT_FOUND; 1450 } 1451 1452 ResXMLParser::event_code_t ResXMLParser::nextNode() 1453 { 1454 if (mEventCode < 0) { 1455 return mEventCode; 1456 } 1457 1458 do { 1459 const ResXMLTree_node* next = (const ResXMLTree_node*) 1460 (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size)); 1461 if (kDebugXMLNoisy) { 1462 ALOGI("Next node: prev=%p, next=%p\n", mCurNode, next); 1463 } 1464 1465 if (((const uint8_t*)next) >= mTree.mDataEnd) { 1466 mCurNode = NULL; 1467 return (mEventCode=END_DOCUMENT); 1468 } 1469 1470 if (mTree.validateNode(next) != NO_ERROR) { 1471 mCurNode = NULL; 1472 return (mEventCode=BAD_DOCUMENT); 1473 } 1474 1475 mCurNode = next; 1476 const uint16_t headerSize = dtohs(next->header.headerSize); 1477 const uint32_t totalSize = dtohl(next->header.size); 1478 mCurExt = ((const uint8_t*)next) + headerSize; 1479 size_t minExtSize = 0; 1480 event_code_t eventCode = (event_code_t)dtohs(next->header.type); 1481 switch ((mEventCode=eventCode)) { 1482 case RES_XML_START_NAMESPACE_TYPE: 1483 case RES_XML_END_NAMESPACE_TYPE: 1484 minExtSize = sizeof(ResXMLTree_namespaceExt); 1485 break; 1486 case RES_XML_START_ELEMENT_TYPE: 1487 minExtSize = sizeof(ResXMLTree_attrExt); 1488 break; 1489 case RES_XML_END_ELEMENT_TYPE: 1490 minExtSize = sizeof(ResXMLTree_endElementExt); 1491 break; 1492 case RES_XML_CDATA_TYPE: 1493 minExtSize = sizeof(ResXMLTree_cdataExt); 1494 break; 1495 default: 1496 ALOGW("Unknown XML block: header type %d in node at %d\n", 1497 (int)dtohs(next->header.type), 1498 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader))); 1499 continue; 1500 } 1501 1502 if ((totalSize-headerSize) < minExtSize) { 1503 ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n", 1504 (int)dtohs(next->header.type), 1505 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)), 1506 (int)(totalSize-headerSize), (int)minExtSize); 1507 return (mEventCode=BAD_DOCUMENT); 1508 } 1509 1510 //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n", 1511 // mCurNode, mCurExt, headerSize, minExtSize); 1512 1513 return eventCode; 1514 } while (true); 1515 } 1516 1517 void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const 1518 { 1519 pos->eventCode = mEventCode; 1520 pos->curNode = mCurNode; 1521 pos->curExt = mCurExt; 1522 } 1523 1524 void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos) 1525 { 1526 mEventCode = pos.eventCode; 1527 mCurNode = pos.curNode; 1528 mCurExt = pos.curExt; 1529 } 1530 1531 // -------------------------------------------------------------------- 1532 1533 static volatile int32_t gCount = 0; 1534 1535 ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable) 1536 : ResXMLParser(*this) 1537 , mDynamicRefTable(dynamicRefTable) 1538 , mError(NO_INIT), mOwnedData(NULL) 1539 { 1540 if (kDebugResXMLTree) { 1541 ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1542 } 1543 restart(); 1544 } 1545 1546 ResXMLTree::ResXMLTree() 1547 : ResXMLParser(*this) 1548 , mDynamicRefTable(NULL) 1549 , mError(NO_INIT), mOwnedData(NULL) 1550 { 1551 if (kDebugResXMLTree) { 1552 ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1553 } 1554 restart(); 1555 } 1556 1557 ResXMLTree::~ResXMLTree() 1558 { 1559 if (kDebugResXMLTree) { 1560 ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1); 1561 } 1562 uninit(); 1563 } 1564 1565 status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData) 1566 { 1567 uninit(); 1568 mEventCode = START_DOCUMENT; 1569 1570 if (!data || !size) { 1571 return (mError=BAD_TYPE); 1572 } 1573 1574 if (copyData) { 1575 mOwnedData = malloc(size); 1576 if (mOwnedData == NULL) { 1577 return (mError=NO_MEMORY); 1578 } 1579 memcpy(mOwnedData, data, size); 1580 data = mOwnedData; 1581 } 1582 1583 mHeader = (const ResXMLTree_header*)data; 1584 mSize = dtohl(mHeader->header.size); 1585 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) { 1586 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n", 1587 (int)dtohs(mHeader->header.headerSize), 1588 (int)dtohl(mHeader->header.size), (int)size); 1589 mError = BAD_TYPE; 1590 restart(); 1591 return mError; 1592 } 1593 mDataEnd = ((const uint8_t*)mHeader) + mSize; 1594 1595 mStrings.uninit(); 1596 mRootNode = NULL; 1597 mResIds = NULL; 1598 mNumResIds = 0; 1599 1600 // First look for a couple interesting chunks: the string block 1601 // and first XML node. 1602 const ResChunk_header* chunk = 1603 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize)); 1604 const ResChunk_header* lastChunk = chunk; 1605 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) && 1606 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) { 1607 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML"); 1608 if (err != NO_ERROR) { 1609 mError = err; 1610 goto done; 1611 } 1612 const uint16_t type = dtohs(chunk->type); 1613 const size_t size = dtohl(chunk->size); 1614 if (kDebugXMLNoisy) { 1615 printf("Scanning @ %p: type=0x%x, size=0x%zx\n", 1616 (void*)(((uintptr_t)chunk)-((uintptr_t)mHeader)), type, size); 1617 } 1618 if (type == RES_STRING_POOL_TYPE) { 1619 mStrings.setTo(chunk, size); 1620 } else if (type == RES_XML_RESOURCE_MAP_TYPE) { 1621 mResIds = (const uint32_t*) 1622 (((const uint8_t*)chunk)+dtohs(chunk->headerSize)); 1623 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t); 1624 } else if (type >= RES_XML_FIRST_CHUNK_TYPE 1625 && type <= RES_XML_LAST_CHUNK_TYPE) { 1626 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) { 1627 mError = BAD_TYPE; 1628 goto done; 1629 } 1630 mCurNode = (const ResXMLTree_node*)lastChunk; 1631 if (nextNode() == BAD_DOCUMENT) { 1632 mError = BAD_TYPE; 1633 goto done; 1634 } 1635 mRootNode = mCurNode; 1636 mRootExt = mCurExt; 1637 mRootCode = mEventCode; 1638 break; 1639 } else { 1640 if (kDebugXMLNoisy) { 1641 printf("Skipping unknown chunk!\n"); 1642 } 1643 } 1644 lastChunk = chunk; 1645 chunk = (const ResChunk_header*) 1646 (((const uint8_t*)chunk) + size); 1647 } 1648 1649 if (mRootNode == NULL) { 1650 ALOGW("Bad XML block: no root element node found\n"); 1651 mError = BAD_TYPE; 1652 goto done; 1653 } 1654 1655 mError = mStrings.getError(); 1656 1657 done: 1658 restart(); 1659 return mError; 1660 } 1661 1662 status_t ResXMLTree::getError() const 1663 { 1664 return mError; 1665 } 1666 1667 void ResXMLTree::uninit() 1668 { 1669 mError = NO_INIT; 1670 mStrings.uninit(); 1671 if (mOwnedData) { 1672 free(mOwnedData); 1673 mOwnedData = NULL; 1674 } 1675 restart(); 1676 } 1677 1678 status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const 1679 { 1680 const uint16_t eventCode = dtohs(node->header.type); 1681 1682 status_t err = validate_chunk( 1683 &node->header, sizeof(ResXMLTree_node), 1684 mDataEnd, "ResXMLTree_node"); 1685 1686 if (err >= NO_ERROR) { 1687 // Only perform additional validation on START nodes 1688 if (eventCode != RES_XML_START_ELEMENT_TYPE) { 1689 return NO_ERROR; 1690 } 1691 1692 const uint16_t headerSize = dtohs(node->header.headerSize); 1693 const uint32_t size = dtohl(node->header.size); 1694 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*) 1695 (((const uint8_t*)node) + headerSize); 1696 // check for sensical values pulled out of the stream so far... 1697 if ((size >= headerSize + sizeof(ResXMLTree_attrExt)) 1698 && ((void*)attrExt > (void*)node)) { 1699 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize)) 1700 * dtohs(attrExt->attributeCount); 1701 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) { 1702 return NO_ERROR; 1703 } 1704 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1705 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize), 1706 (unsigned int)(size-headerSize)); 1707 } 1708 else { 1709 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n", 1710 (unsigned int)headerSize, (unsigned int)size); 1711 } 1712 return BAD_TYPE; 1713 } 1714 1715 return err; 1716 1717 #if 0 1718 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE; 1719 1720 const uint16_t headerSize = dtohs(node->header.headerSize); 1721 const uint32_t size = dtohl(node->header.size); 1722 1723 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) { 1724 if (size >= headerSize) { 1725 if (((const uint8_t*)node) <= (mDataEnd-size)) { 1726 if (!isStart) { 1727 return NO_ERROR; 1728 } 1729 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount)) 1730 <= (size-headerSize)) { 1731 return NO_ERROR; 1732 } 1733 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1734 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount), 1735 (int)(size-headerSize)); 1736 return BAD_TYPE; 1737 } 1738 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n", 1739 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize); 1740 return BAD_TYPE; 1741 } 1742 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n", 1743 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1744 (int)headerSize, (int)size); 1745 return BAD_TYPE; 1746 } 1747 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n", 1748 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1749 (int)headerSize); 1750 return BAD_TYPE; 1751 #endif 1752 } 1753 1754 // -------------------------------------------------------------------- 1755 // -------------------------------------------------------------------- 1756 // -------------------------------------------------------------------- 1757 1758 void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) { 1759 const size_t size = dtohl(o.size); 1760 if (size >= sizeof(ResTable_config)) { 1761 *this = o; 1762 } else { 1763 memcpy(this, &o, size); 1764 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size); 1765 } 1766 } 1767 1768 /* static */ size_t unpackLanguageOrRegion(const char in[2], const char base, 1769 char out[4]) { 1770 if (in[0] & 0x80) { 1771 // The high bit is "1", which means this is a packed three letter 1772 // language code. 1773 1774 // The smallest 5 bits of the second char are the first alphabet. 1775 const uint8_t first = in[1] & 0x1f; 1776 // The last three bits of the second char and the first two bits 1777 // of the first char are the second alphabet. 1778 const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3); 1779 // Bits 3 to 7 (inclusive) of the first char are the third alphabet. 1780 const uint8_t third = (in[0] & 0x7c) >> 2; 1781 1782 out[0] = first + base; 1783 out[1] = second + base; 1784 out[2] = third + base; 1785 out[3] = 0; 1786 1787 return 3; 1788 } 1789 1790 if (in[0]) { 1791 memcpy(out, in, 2); 1792 memset(out + 2, 0, 2); 1793 return 2; 1794 } 1795 1796 memset(out, 0, 4); 1797 return 0; 1798 } 1799 1800 /* static */ void packLanguageOrRegion(const char* in, const char base, 1801 char out[2]) { 1802 if (in[2] == 0 || in[2] == '-') { 1803 out[0] = in[0]; 1804 out[1] = in[1]; 1805 } else { 1806 uint8_t first = (in[0] - base) & 0x007f; 1807 uint8_t second = (in[1] - base) & 0x007f; 1808 uint8_t third = (in[2] - base) & 0x007f; 1809 1810 out[0] = (0x80 | (third << 2) | (second >> 3)); 1811 out[1] = ((second << 5) | first); 1812 } 1813 } 1814 1815 1816 void ResTable_config::packLanguage(const char* language) { 1817 packLanguageOrRegion(language, 'a', this->language); 1818 } 1819 1820 void ResTable_config::packRegion(const char* region) { 1821 packLanguageOrRegion(region, '0', this->country); 1822 } 1823 1824 size_t ResTable_config::unpackLanguage(char language[4]) const { 1825 return unpackLanguageOrRegion(this->language, 'a', language); 1826 } 1827 1828 size_t ResTable_config::unpackRegion(char region[4]) const { 1829 return unpackLanguageOrRegion(this->country, '0', region); 1830 } 1831 1832 1833 void ResTable_config::copyFromDtoH(const ResTable_config& o) { 1834 copyFromDeviceNoSwap(o); 1835 size = sizeof(ResTable_config); 1836 mcc = dtohs(mcc); 1837 mnc = dtohs(mnc); 1838 density = dtohs(density); 1839 screenWidth = dtohs(screenWidth); 1840 screenHeight = dtohs(screenHeight); 1841 sdkVersion = dtohs(sdkVersion); 1842 minorVersion = dtohs(minorVersion); 1843 smallestScreenWidthDp = dtohs(smallestScreenWidthDp); 1844 screenWidthDp = dtohs(screenWidthDp); 1845 screenHeightDp = dtohs(screenHeightDp); 1846 } 1847 1848 void ResTable_config::swapHtoD() { 1849 size = htodl(size); 1850 mcc = htods(mcc); 1851 mnc = htods(mnc); 1852 density = htods(density); 1853 screenWidth = htods(screenWidth); 1854 screenHeight = htods(screenHeight); 1855 sdkVersion = htods(sdkVersion); 1856 minorVersion = htods(minorVersion); 1857 smallestScreenWidthDp = htods(smallestScreenWidthDp); 1858 screenWidthDp = htods(screenWidthDp); 1859 screenHeightDp = htods(screenHeightDp); 1860 } 1861 1862 /* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) { 1863 if (l.locale != r.locale) { 1864 // NOTE: This is the old behaviour with respect to comparison orders. 1865 // The diff value here doesn't make much sense (given our bit packing scheme) 1866 // but it's stable, and that's all we need. 1867 return l.locale - r.locale; 1868 } 1869 1870 // The language & region are equal, so compare the scripts and variants. 1871 int script = memcmp(l.localeScript, r.localeScript, sizeof(l.localeScript)); 1872 if (script) { 1873 return script; 1874 } 1875 1876 // The language, region and script are equal, so compare variants. 1877 // 1878 // This should happen very infrequently (if at all.) 1879 return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant)); 1880 } 1881 1882 int ResTable_config::compare(const ResTable_config& o) const { 1883 int32_t diff = (int32_t)(imsi - o.imsi); 1884 if (diff != 0) return diff; 1885 diff = compareLocales(*this, o); 1886 if (diff != 0) return diff; 1887 diff = (int32_t)(screenType - o.screenType); 1888 if (diff != 0) return diff; 1889 diff = (int32_t)(input - o.input); 1890 if (diff != 0) return diff; 1891 diff = (int32_t)(screenSize - o.screenSize); 1892 if (diff != 0) return diff; 1893 diff = (int32_t)(version - o.version); 1894 if (diff != 0) return diff; 1895 diff = (int32_t)(screenLayout - o.screenLayout); 1896 if (diff != 0) return diff; 1897 diff = (int32_t)(screenLayout2 - o.screenLayout2); 1898 if (diff != 0) return diff; 1899 diff = (int32_t)(uiMode - o.uiMode); 1900 if (diff != 0) return diff; 1901 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp); 1902 if (diff != 0) return diff; 1903 diff = (int32_t)(screenSizeDp - o.screenSizeDp); 1904 return (int)diff; 1905 } 1906 1907 int ResTable_config::compareLogical(const ResTable_config& o) const { 1908 if (mcc != o.mcc) { 1909 return mcc < o.mcc ? -1 : 1; 1910 } 1911 if (mnc != o.mnc) { 1912 return mnc < o.mnc ? -1 : 1; 1913 } 1914 1915 int diff = compareLocales(*this, o); 1916 if (diff < 0) { 1917 return -1; 1918 } 1919 if (diff > 0) { 1920 return 1; 1921 } 1922 1923 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) { 1924 return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1; 1925 } 1926 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1927 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1; 1928 } 1929 if (screenWidthDp != o.screenWidthDp) { 1930 return screenWidthDp < o.screenWidthDp ? -1 : 1; 1931 } 1932 if (screenHeightDp != o.screenHeightDp) { 1933 return screenHeightDp < o.screenHeightDp ? -1 : 1; 1934 } 1935 if (screenWidth != o.screenWidth) { 1936 return screenWidth < o.screenWidth ? -1 : 1; 1937 } 1938 if (screenHeight != o.screenHeight) { 1939 return screenHeight < o.screenHeight ? -1 : 1; 1940 } 1941 if (density != o.density) { 1942 return density < o.density ? -1 : 1; 1943 } 1944 if (orientation != o.orientation) { 1945 return orientation < o.orientation ? -1 : 1; 1946 } 1947 if (touchscreen != o.touchscreen) { 1948 return touchscreen < o.touchscreen ? -1 : 1; 1949 } 1950 if (input != o.input) { 1951 return input < o.input ? -1 : 1; 1952 } 1953 if (screenLayout != o.screenLayout) { 1954 return screenLayout < o.screenLayout ? -1 : 1; 1955 } 1956 if (screenLayout2 != o.screenLayout2) { 1957 return screenLayout2 < o.screenLayout2 ? -1 : 1; 1958 } 1959 if (uiMode != o.uiMode) { 1960 return uiMode < o.uiMode ? -1 : 1; 1961 } 1962 if (version != o.version) { 1963 return version < o.version ? -1 : 1; 1964 } 1965 return 0; 1966 } 1967 1968 int ResTable_config::diff(const ResTable_config& o) const { 1969 int diffs = 0; 1970 if (mcc != o.mcc) diffs |= CONFIG_MCC; 1971 if (mnc != o.mnc) diffs |= CONFIG_MNC; 1972 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION; 1973 if (density != o.density) diffs |= CONFIG_DENSITY; 1974 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN; 1975 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0) 1976 diffs |= CONFIG_KEYBOARD_HIDDEN; 1977 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD; 1978 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION; 1979 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE; 1980 if (version != o.version) diffs |= CONFIG_VERSION; 1981 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR; 1982 if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT; 1983 if ((screenLayout2 & MASK_SCREENROUND) != (o.screenLayout2 & MASK_SCREENROUND)) diffs |= CONFIG_SCREEN_ROUND; 1984 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE; 1985 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE; 1986 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE; 1987 1988 const int diff = compareLocales(*this, o); 1989 if (diff) diffs |= CONFIG_LOCALE; 1990 1991 return diffs; 1992 } 1993 1994 int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const { 1995 if (locale || o.locale) { 1996 if (language[0] != o.language[0]) { 1997 if (!language[0]) return -1; 1998 if (!o.language[0]) return 1; 1999 } 2000 2001 if (country[0] != o.country[0]) { 2002 if (!country[0]) return -1; 2003 if (!o.country[0]) return 1; 2004 } 2005 } 2006 2007 // There isn't a well specified "importance" order between variants and 2008 // scripts. We can't easily tell whether, say "en-Latn-US" is more or less 2009 // specific than "en-US-POSIX". 2010 // 2011 // We therefore arbitrarily decide to give priority to variants over 2012 // scripts since it seems more useful to do so. We will consider 2013 // "en-US-POSIX" to be more specific than "en-Latn-US". 2014 2015 const int score = ((localeScript[0] != 0) ? 1 : 0) + 2016 ((localeVariant[0] != 0) ? 2 : 0); 2017 2018 const int oScore = ((o.localeScript[0] != 0) ? 1 : 0) + 2019 ((o.localeVariant[0] != 0) ? 2 : 0); 2020 2021 return score - oScore; 2022 2023 } 2024 2025 bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const { 2026 // The order of the following tests defines the importance of one 2027 // configuration parameter over another. Those tests first are more 2028 // important, trumping any values in those following them. 2029 if (imsi || o.imsi) { 2030 if (mcc != o.mcc) { 2031 if (!mcc) return false; 2032 if (!o.mcc) return true; 2033 } 2034 2035 if (mnc != o.mnc) { 2036 if (!mnc) return false; 2037 if (!o.mnc) return true; 2038 } 2039 } 2040 2041 if (locale || o.locale) { 2042 const int diff = isLocaleMoreSpecificThan(o); 2043 if (diff < 0) { 2044 return false; 2045 } 2046 2047 if (diff > 0) { 2048 return true; 2049 } 2050 } 2051 2052 if (screenLayout || o.screenLayout) { 2053 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) { 2054 if (!(screenLayout & MASK_LAYOUTDIR)) return false; 2055 if (!(o.screenLayout & MASK_LAYOUTDIR)) return true; 2056 } 2057 } 2058 2059 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 2060 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 2061 if (!smallestScreenWidthDp) return false; 2062 if (!o.smallestScreenWidthDp) return true; 2063 } 2064 } 2065 2066 if (screenSizeDp || o.screenSizeDp) { 2067 if (screenWidthDp != o.screenWidthDp) { 2068 if (!screenWidthDp) return false; 2069 if (!o.screenWidthDp) return true; 2070 } 2071 2072 if (screenHeightDp != o.screenHeightDp) { 2073 if (!screenHeightDp) return false; 2074 if (!o.screenHeightDp) return true; 2075 } 2076 } 2077 2078 if (screenLayout || o.screenLayout) { 2079 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) { 2080 if (!(screenLayout & MASK_SCREENSIZE)) return false; 2081 if (!(o.screenLayout & MASK_SCREENSIZE)) return true; 2082 } 2083 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) { 2084 if (!(screenLayout & MASK_SCREENLONG)) return false; 2085 if (!(o.screenLayout & MASK_SCREENLONG)) return true; 2086 } 2087 } 2088 2089 if (screenLayout2 || o.screenLayout2) { 2090 if (((screenLayout2^o.screenLayout2) & MASK_SCREENROUND) != 0) { 2091 if (!(screenLayout2 & MASK_SCREENROUND)) return false; 2092 if (!(o.screenLayout2 & MASK_SCREENROUND)) return true; 2093 } 2094 } 2095 2096 if (orientation != o.orientation) { 2097 if (!orientation) return false; 2098 if (!o.orientation) return true; 2099 } 2100 2101 if (uiMode || o.uiMode) { 2102 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) { 2103 if (!(uiMode & MASK_UI_MODE_TYPE)) return false; 2104 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true; 2105 } 2106 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) { 2107 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false; 2108 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true; 2109 } 2110 } 2111 2112 // density is never 'more specific' 2113 // as the default just equals 160 2114 2115 if (touchscreen != o.touchscreen) { 2116 if (!touchscreen) return false; 2117 if (!o.touchscreen) return true; 2118 } 2119 2120 if (input || o.input) { 2121 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) { 2122 if (!(inputFlags & MASK_KEYSHIDDEN)) return false; 2123 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true; 2124 } 2125 2126 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) { 2127 if (!(inputFlags & MASK_NAVHIDDEN)) return false; 2128 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true; 2129 } 2130 2131 if (keyboard != o.keyboard) { 2132 if (!keyboard) return false; 2133 if (!o.keyboard) return true; 2134 } 2135 2136 if (navigation != o.navigation) { 2137 if (!navigation) return false; 2138 if (!o.navigation) return true; 2139 } 2140 } 2141 2142 if (screenSize || o.screenSize) { 2143 if (screenWidth != o.screenWidth) { 2144 if (!screenWidth) return false; 2145 if (!o.screenWidth) return true; 2146 } 2147 2148 if (screenHeight != o.screenHeight) { 2149 if (!screenHeight) return false; 2150 if (!o.screenHeight) return true; 2151 } 2152 } 2153 2154 if (version || o.version) { 2155 if (sdkVersion != o.sdkVersion) { 2156 if (!sdkVersion) return false; 2157 if (!o.sdkVersion) return true; 2158 } 2159 2160 if (minorVersion != o.minorVersion) { 2161 if (!minorVersion) return false; 2162 if (!o.minorVersion) return true; 2163 } 2164 } 2165 return false; 2166 } 2167 2168 bool ResTable_config::isBetterThan(const ResTable_config& o, 2169 const ResTable_config* requested) const { 2170 if (requested) { 2171 if (imsi || o.imsi) { 2172 if ((mcc != o.mcc) && requested->mcc) { 2173 return (mcc); 2174 } 2175 2176 if ((mnc != o.mnc) && requested->mnc) { 2177 return (mnc); 2178 } 2179 } 2180 2181 if (locale || o.locale) { 2182 if ((language[0] != o.language[0]) && requested->language[0]) { 2183 return (language[0]); 2184 } 2185 2186 if ((country[0] != o.country[0]) && requested->country[0]) { 2187 return (country[0]); 2188 } 2189 } 2190 2191 if (localeScript[0] || o.localeScript[0]) { 2192 if (localeScript[0] != o.localeScript[0] && requested->localeScript[0]) { 2193 return localeScript[0]; 2194 } 2195 } 2196 2197 if (localeVariant[0] || o.localeVariant[0]) { 2198 if (localeVariant[0] != o.localeVariant[0] && requested->localeVariant[0]) { 2199 return localeVariant[0]; 2200 } 2201 } 2202 2203 if (screenLayout || o.screenLayout) { 2204 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0 2205 && (requested->screenLayout & MASK_LAYOUTDIR)) { 2206 int myLayoutDir = screenLayout & MASK_LAYOUTDIR; 2207 int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR; 2208 return (myLayoutDir > oLayoutDir); 2209 } 2210 } 2211 2212 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 2213 // The configuration closest to the actual size is best. 2214 // We assume that larger configs have already been filtered 2215 // out at this point. That means we just want the largest one. 2216 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 2217 return smallestScreenWidthDp > o.smallestScreenWidthDp; 2218 } 2219 } 2220 2221 if (screenSizeDp || o.screenSizeDp) { 2222 // "Better" is based on the sum of the difference between both 2223 // width and height from the requested dimensions. We are 2224 // assuming the invalid configs (with smaller dimens) have 2225 // already been filtered. Note that if a particular dimension 2226 // is unspecified, we will end up with a large value (the 2227 // difference between 0 and the requested dimension), which is 2228 // good since we will prefer a config that has specified a 2229 // dimension value. 2230 int myDelta = 0, otherDelta = 0; 2231 if (requested->screenWidthDp) { 2232 myDelta += requested->screenWidthDp - screenWidthDp; 2233 otherDelta += requested->screenWidthDp - o.screenWidthDp; 2234 } 2235 if (requested->screenHeightDp) { 2236 myDelta += requested->screenHeightDp - screenHeightDp; 2237 otherDelta += requested->screenHeightDp - o.screenHeightDp; 2238 } 2239 if (kDebugTableSuperNoisy) { 2240 ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d", 2241 screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp, 2242 requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta); 2243 } 2244 if (myDelta != otherDelta) { 2245 return myDelta < otherDelta; 2246 } 2247 } 2248 2249 if (screenLayout || o.screenLayout) { 2250 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0 2251 && (requested->screenLayout & MASK_SCREENSIZE)) { 2252 // A little backwards compatibility here: undefined is 2253 // considered equivalent to normal. But only if the 2254 // requested size is at least normal; otherwise, small 2255 // is better than the default. 2256 int mySL = (screenLayout & MASK_SCREENSIZE); 2257 int oSL = (o.screenLayout & MASK_SCREENSIZE); 2258 int fixedMySL = mySL; 2259 int fixedOSL = oSL; 2260 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) { 2261 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL; 2262 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL; 2263 } 2264 // For screen size, the best match is the one that is 2265 // closest to the requested screen size, but not over 2266 // (the not over part is dealt with in match() below). 2267 if (fixedMySL == fixedOSL) { 2268 // If the two are the same, but 'this' is actually 2269 // undefined, then the other is really a better match. 2270 if (mySL == 0) return false; 2271 return true; 2272 } 2273 if (fixedMySL != fixedOSL) { 2274 return fixedMySL > fixedOSL; 2275 } 2276 } 2277 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0 2278 && (requested->screenLayout & MASK_SCREENLONG)) { 2279 return (screenLayout & MASK_SCREENLONG); 2280 } 2281 } 2282 2283 if (screenLayout2 || o.screenLayout2) { 2284 if (((screenLayout2^o.screenLayout2) & MASK_SCREENROUND) != 0 && 2285 (requested->screenLayout2 & MASK_SCREENROUND)) { 2286 return screenLayout2 & MASK_SCREENROUND; 2287 } 2288 } 2289 2290 if ((orientation != o.orientation) && requested->orientation) { 2291 return (orientation); 2292 } 2293 2294 if (uiMode || o.uiMode) { 2295 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0 2296 && (requested->uiMode & MASK_UI_MODE_TYPE)) { 2297 return (uiMode & MASK_UI_MODE_TYPE); 2298 } 2299 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0 2300 && (requested->uiMode & MASK_UI_MODE_NIGHT)) { 2301 return (uiMode & MASK_UI_MODE_NIGHT); 2302 } 2303 } 2304 2305 if (screenType || o.screenType) { 2306 if (density != o.density) { 2307 // Use the system default density (DENSITY_MEDIUM, 160dpi) if none specified. 2308 const int thisDensity = density ? density : int(ResTable_config::DENSITY_MEDIUM); 2309 const int otherDensity = o.density ? o.density : int(ResTable_config::DENSITY_MEDIUM); 2310 2311 // We always prefer DENSITY_ANY over scaling a density bucket. 2312 if (thisDensity == ResTable_config::DENSITY_ANY) { 2313 return true; 2314 } else if (otherDensity == ResTable_config::DENSITY_ANY) { 2315 return false; 2316 } 2317 2318 int requestedDensity = requested->density; 2319 if (requested->density == 0 || 2320 requested->density == ResTable_config::DENSITY_ANY) { 2321 requestedDensity = ResTable_config::DENSITY_MEDIUM; 2322 } 2323 2324 // DENSITY_ANY is now dealt with. We should look to 2325 // pick a density bucket and potentially scale it. 2326 // Any density is potentially useful 2327 // because the system will scale it. Scaling down 2328 // is generally better than scaling up. 2329 int h = thisDensity; 2330 int l = otherDensity; 2331 bool bImBigger = true; 2332 if (l > h) { 2333 int t = h; 2334 h = l; 2335 l = t; 2336 bImBigger = false; 2337 } 2338 2339 if (requestedDensity >= h) { 2340 // requested value higher than both l and h, give h 2341 return bImBigger; 2342 } 2343 if (l >= requestedDensity) { 2344 // requested value lower than both l and h, give l 2345 return !bImBigger; 2346 } 2347 // saying that scaling down is 2x better than up 2348 if (((2 * l) - requestedDensity) * h > requestedDensity * requestedDensity) { 2349 return !bImBigger; 2350 } else { 2351 return bImBigger; 2352 } 2353 } 2354 2355 if ((touchscreen != o.touchscreen) && requested->touchscreen) { 2356 return (touchscreen); 2357 } 2358 } 2359 2360 if (input || o.input) { 2361 const int keysHidden = inputFlags & MASK_KEYSHIDDEN; 2362 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN; 2363 if (keysHidden != oKeysHidden) { 2364 const int reqKeysHidden = 2365 requested->inputFlags & MASK_KEYSHIDDEN; 2366 if (reqKeysHidden) { 2367 2368 if (!keysHidden) return false; 2369 if (!oKeysHidden) return true; 2370 // For compatibility, we count KEYSHIDDEN_NO as being 2371 // the same as KEYSHIDDEN_SOFT. Here we disambiguate 2372 // these by making an exact match more specific. 2373 if (reqKeysHidden == keysHidden) return true; 2374 if (reqKeysHidden == oKeysHidden) return false; 2375 } 2376 } 2377 2378 const int navHidden = inputFlags & MASK_NAVHIDDEN; 2379 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN; 2380 if (navHidden != oNavHidden) { 2381 const int reqNavHidden = 2382 requested->inputFlags & MASK_NAVHIDDEN; 2383 if (reqNavHidden) { 2384 2385 if (!navHidden) return false; 2386 if (!oNavHidden) return true; 2387 } 2388 } 2389 2390 if ((keyboard != o.keyboard) && requested->keyboard) { 2391 return (keyboard); 2392 } 2393 2394 if ((navigation != o.navigation) && requested->navigation) { 2395 return (navigation); 2396 } 2397 } 2398 2399 if (screenSize || o.screenSize) { 2400 // "Better" is based on the sum of the difference between both 2401 // width and height from the requested dimensions. We are 2402 // assuming the invalid configs (with smaller sizes) have 2403 // already been filtered. Note that if a particular dimension 2404 // is unspecified, we will end up with a large value (the 2405 // difference between 0 and the requested dimension), which is 2406 // good since we will prefer a config that has specified a 2407 // size value. 2408 int myDelta = 0, otherDelta = 0; 2409 if (requested->screenWidth) { 2410 myDelta += requested->screenWidth - screenWidth; 2411 otherDelta += requested->screenWidth - o.screenWidth; 2412 } 2413 if (requested->screenHeight) { 2414 myDelta += requested->screenHeight - screenHeight; 2415 otherDelta += requested->screenHeight - o.screenHeight; 2416 } 2417 if (myDelta != otherDelta) { 2418 return myDelta < otherDelta; 2419 } 2420 } 2421 2422 if (version || o.version) { 2423 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) { 2424 return (sdkVersion > o.sdkVersion); 2425 } 2426 2427 if ((minorVersion != o.minorVersion) && 2428 requested->minorVersion) { 2429 return (minorVersion); 2430 } 2431 } 2432 2433 return false; 2434 } 2435 return isMoreSpecificThan(o); 2436 } 2437 2438 bool ResTable_config::match(const ResTable_config& settings) const { 2439 if (imsi != 0) { 2440 if (mcc != 0 && mcc != settings.mcc) { 2441 return false; 2442 } 2443 if (mnc != 0 && mnc != settings.mnc) { 2444 return false; 2445 } 2446 } 2447 if (locale != 0) { 2448 // Don't consider the script & variants when deciding matches. 2449 // 2450 // If we two configs differ only in their script or language, they 2451 // can be weeded out in the isMoreSpecificThan test. 2452 if (language[0] != 0 2453 && (language[0] != settings.language[0] 2454 || language[1] != settings.language[1])) { 2455 return false; 2456 } 2457 2458 if (country[0] != 0 2459 && (country[0] != settings.country[0] 2460 || country[1] != settings.country[1])) { 2461 return false; 2462 } 2463 } 2464 2465 if (screenConfig != 0) { 2466 const int layoutDir = screenLayout&MASK_LAYOUTDIR; 2467 const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR; 2468 if (layoutDir != 0 && layoutDir != setLayoutDir) { 2469 return false; 2470 } 2471 2472 const int screenSize = screenLayout&MASK_SCREENSIZE; 2473 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE; 2474 // Any screen sizes for larger screens than the setting do not 2475 // match. 2476 if (screenSize != 0 && screenSize > setScreenSize) { 2477 return false; 2478 } 2479 2480 const int screenLong = screenLayout&MASK_SCREENLONG; 2481 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG; 2482 if (screenLong != 0 && screenLong != setScreenLong) { 2483 return false; 2484 } 2485 2486 const int uiModeType = uiMode&MASK_UI_MODE_TYPE; 2487 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE; 2488 if (uiModeType != 0 && uiModeType != setUiModeType) { 2489 return false; 2490 } 2491 2492 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT; 2493 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT; 2494 if (uiModeNight != 0 && uiModeNight != setUiModeNight) { 2495 return false; 2496 } 2497 2498 if (smallestScreenWidthDp != 0 2499 && smallestScreenWidthDp > settings.smallestScreenWidthDp) { 2500 return false; 2501 } 2502 } 2503 2504 if (screenConfig2 != 0) { 2505 const int screenRound = screenLayout2 & MASK_SCREENROUND; 2506 const int setScreenRound = settings.screenLayout2 & MASK_SCREENROUND; 2507 if (screenRound != 0 && screenRound != setScreenRound) { 2508 return false; 2509 } 2510 } 2511 2512 if (screenSizeDp != 0) { 2513 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) { 2514 if (kDebugTableSuperNoisy) { 2515 ALOGI("Filtering out width %d in requested %d", screenWidthDp, 2516 settings.screenWidthDp); 2517 } 2518 return false; 2519 } 2520 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) { 2521 if (kDebugTableSuperNoisy) { 2522 ALOGI("Filtering out height %d in requested %d", screenHeightDp, 2523 settings.screenHeightDp); 2524 } 2525 return false; 2526 } 2527 } 2528 if (screenType != 0) { 2529 if (orientation != 0 && orientation != settings.orientation) { 2530 return false; 2531 } 2532 // density always matches - we can scale it. See isBetterThan 2533 if (touchscreen != 0 && touchscreen != settings.touchscreen) { 2534 return false; 2535 } 2536 } 2537 if (input != 0) { 2538 const int keysHidden = inputFlags&MASK_KEYSHIDDEN; 2539 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN; 2540 if (keysHidden != 0 && keysHidden != setKeysHidden) { 2541 // For compatibility, we count a request for KEYSHIDDEN_NO as also 2542 // matching the more recent KEYSHIDDEN_SOFT. Basically 2543 // KEYSHIDDEN_NO means there is some kind of keyboard available. 2544 if (kDebugTableSuperNoisy) { 2545 ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden); 2546 } 2547 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) { 2548 if (kDebugTableSuperNoisy) { 2549 ALOGI("No match!"); 2550 } 2551 return false; 2552 } 2553 } 2554 const int navHidden = inputFlags&MASK_NAVHIDDEN; 2555 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN; 2556 if (navHidden != 0 && navHidden != setNavHidden) { 2557 return false; 2558 } 2559 if (keyboard != 0 && keyboard != settings.keyboard) { 2560 return false; 2561 } 2562 if (navigation != 0 && navigation != settings.navigation) { 2563 return false; 2564 } 2565 } 2566 if (screenSize != 0) { 2567 if (screenWidth != 0 && screenWidth > settings.screenWidth) { 2568 return false; 2569 } 2570 if (screenHeight != 0 && screenHeight > settings.screenHeight) { 2571 return false; 2572 } 2573 } 2574 if (version != 0) { 2575 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) { 2576 return false; 2577 } 2578 if (minorVersion != 0 && minorVersion != settings.minorVersion) { 2579 return false; 2580 } 2581 } 2582 return true; 2583 } 2584 2585 void ResTable_config::appendDirLocale(String8& out) const { 2586 if (!language[0]) { 2587 return; 2588 } 2589 2590 if (!localeScript[0] && !localeVariant[0]) { 2591 // Legacy format. 2592 if (out.size() > 0) { 2593 out.append("-"); 2594 } 2595 2596 char buf[4]; 2597 size_t len = unpackLanguage(buf); 2598 out.append(buf, len); 2599 2600 if (country[0]) { 2601 out.append("-r"); 2602 len = unpackRegion(buf); 2603 out.append(buf, len); 2604 } 2605 return; 2606 } 2607 2608 // We are writing the modified bcp47 tag. 2609 // It starts with 'b+' and uses '+' as a separator. 2610 2611 if (out.size() > 0) { 2612 out.append("-"); 2613 } 2614 out.append("b+"); 2615 2616 char buf[4]; 2617 size_t len = unpackLanguage(buf); 2618 out.append(buf, len); 2619 2620 if (localeScript[0]) { 2621 out.append("+"); 2622 out.append(localeScript, sizeof(localeScript)); 2623 } 2624 2625 if (country[0]) { 2626 out.append("+"); 2627 len = unpackRegion(buf); 2628 out.append(buf, len); 2629 } 2630 2631 if (localeVariant[0]) { 2632 out.append("+"); 2633 out.append(localeVariant, sizeof(localeVariant)); 2634 } 2635 } 2636 2637 void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const { 2638 memset(str, 0, RESTABLE_MAX_LOCALE_LEN); 2639 2640 // This represents the "any" locale value, which has traditionally been 2641 // represented by the empty string. 2642 if (!language[0] && !country[0]) { 2643 return; 2644 } 2645 2646 size_t charsWritten = 0; 2647 if (language[0]) { 2648 charsWritten += unpackLanguage(str); 2649 } 2650 2651 if (localeScript[0]) { 2652 if (charsWritten) { 2653 str[charsWritten++] = '-'; 2654 } 2655 memcpy(str + charsWritten, localeScript, sizeof(localeScript)); 2656 charsWritten += sizeof(localeScript); 2657 } 2658 2659 if (country[0]) { 2660 if (charsWritten) { 2661 str[charsWritten++] = '-'; 2662 } 2663 charsWritten += unpackRegion(str + charsWritten); 2664 } 2665 2666 if (localeVariant[0]) { 2667 if (charsWritten) { 2668 str[charsWritten++] = '-'; 2669 } 2670 memcpy(str + charsWritten, localeVariant, sizeof(localeVariant)); 2671 } 2672 } 2673 2674 /* static */ inline bool assignLocaleComponent(ResTable_config* config, 2675 const char* start, size_t size) { 2676 2677 switch (size) { 2678 case 0: 2679 return false; 2680 case 2: 2681 case 3: 2682 config->language[0] ? config->packRegion(start) : config->packLanguage(start); 2683 break; 2684 case 4: 2685 config->localeScript[0] = toupper(start[0]); 2686 for (size_t i = 1; i < 4; ++i) { 2687 config->localeScript[i] = tolower(start[i]); 2688 } 2689 break; 2690 case 5: 2691 case 6: 2692 case 7: 2693 case 8: 2694 for (size_t i = 0; i < size; ++i) { 2695 config->localeVariant[i] = tolower(start[i]); 2696 } 2697 break; 2698 default: 2699 return false; 2700 } 2701 2702 return true; 2703 } 2704 2705 void ResTable_config::setBcp47Locale(const char* in) { 2706 locale = 0; 2707 memset(localeScript, 0, sizeof(localeScript)); 2708 memset(localeVariant, 0, sizeof(localeVariant)); 2709 2710 const char* separator = in; 2711 const char* start = in; 2712 while ((separator = strchr(start, '-')) != NULL) { 2713 const size_t size = separator - start; 2714 if (!assignLocaleComponent(this, start, size)) { 2715 fprintf(stderr, "Invalid BCP-47 locale string: %s", in); 2716 } 2717 2718 start = (separator + 1); 2719 } 2720 2721 const size_t size = in + strlen(in) - start; 2722 assignLocaleComponent(this, start, size); 2723 } 2724 2725 String8 ResTable_config::toString() const { 2726 String8 res; 2727 2728 if (mcc != 0) { 2729 if (res.size() > 0) res.append("-"); 2730 res.appendFormat("mcc%d", dtohs(mcc)); 2731 } 2732 if (mnc != 0) { 2733 if (res.size() > 0) res.append("-"); 2734 res.appendFormat("mnc%d", dtohs(mnc)); 2735 } 2736 2737 appendDirLocale(res); 2738 2739 if ((screenLayout&MASK_LAYOUTDIR) != 0) { 2740 if (res.size() > 0) res.append("-"); 2741 switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) { 2742 case ResTable_config::LAYOUTDIR_LTR: 2743 res.append("ldltr"); 2744 break; 2745 case ResTable_config::LAYOUTDIR_RTL: 2746 res.append("ldrtl"); 2747 break; 2748 default: 2749 res.appendFormat("layoutDir=%d", 2750 dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR)); 2751 break; 2752 } 2753 } 2754 if (smallestScreenWidthDp != 0) { 2755 if (res.size() > 0) res.append("-"); 2756 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp)); 2757 } 2758 if (screenWidthDp != 0) { 2759 if (res.size() > 0) res.append("-"); 2760 res.appendFormat("w%ddp", dtohs(screenWidthDp)); 2761 } 2762 if (screenHeightDp != 0) { 2763 if (res.size() > 0) res.append("-"); 2764 res.appendFormat("h%ddp", dtohs(screenHeightDp)); 2765 } 2766 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) { 2767 if (res.size() > 0) res.append("-"); 2768 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) { 2769 case ResTable_config::SCREENSIZE_SMALL: 2770 res.append("small"); 2771 break; 2772 case ResTable_config::SCREENSIZE_NORMAL: 2773 res.append("normal"); 2774 break; 2775 case ResTable_config::SCREENSIZE_LARGE: 2776 res.append("large"); 2777 break; 2778 case ResTable_config::SCREENSIZE_XLARGE: 2779 res.append("xlarge"); 2780 break; 2781 default: 2782 res.appendFormat("screenLayoutSize=%d", 2783 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE)); 2784 break; 2785 } 2786 } 2787 if ((screenLayout&MASK_SCREENLONG) != 0) { 2788 if (res.size() > 0) res.append("-"); 2789 switch (screenLayout&ResTable_config::MASK_SCREENLONG) { 2790 case ResTable_config::SCREENLONG_NO: 2791 res.append("notlong"); 2792 break; 2793 case ResTable_config::SCREENLONG_YES: 2794 res.append("long"); 2795 break; 2796 default: 2797 res.appendFormat("screenLayoutLong=%d", 2798 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG)); 2799 break; 2800 } 2801 } 2802 if ((screenLayout2&MASK_SCREENROUND) != 0) { 2803 if (res.size() > 0) res.append("-"); 2804 switch (screenLayout2&MASK_SCREENROUND) { 2805 case SCREENROUND_NO: 2806 res.append("notround"); 2807 break; 2808 case SCREENROUND_YES: 2809 res.append("round"); 2810 break; 2811 default: 2812 res.appendFormat("screenRound=%d", dtohs(screenLayout2&MASK_SCREENROUND)); 2813 break; 2814 } 2815 } 2816 if (orientation != ORIENTATION_ANY) { 2817 if (res.size() > 0) res.append("-"); 2818 switch (orientation) { 2819 case ResTable_config::ORIENTATION_PORT: 2820 res.append("port"); 2821 break; 2822 case ResTable_config::ORIENTATION_LAND: 2823 res.append("land"); 2824 break; 2825 case ResTable_config::ORIENTATION_SQUARE: 2826 res.append("square"); 2827 break; 2828 default: 2829 res.appendFormat("orientation=%d", dtohs(orientation)); 2830 break; 2831 } 2832 } 2833 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) { 2834 if (res.size() > 0) res.append("-"); 2835 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) { 2836 case ResTable_config::UI_MODE_TYPE_DESK: 2837 res.append("desk"); 2838 break; 2839 case ResTable_config::UI_MODE_TYPE_CAR: 2840 res.append("car"); 2841 break; 2842 case ResTable_config::UI_MODE_TYPE_TELEVISION: 2843 res.append("television"); 2844 break; 2845 case ResTable_config::UI_MODE_TYPE_APPLIANCE: 2846 res.append("appliance"); 2847 break; 2848 case ResTable_config::UI_MODE_TYPE_WATCH: 2849 res.append("watch"); 2850 break; 2851 default: 2852 res.appendFormat("uiModeType=%d", 2853 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE)); 2854 break; 2855 } 2856 } 2857 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) { 2858 if (res.size() > 0) res.append("-"); 2859 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) { 2860 case ResTable_config::UI_MODE_NIGHT_NO: 2861 res.append("notnight"); 2862 break; 2863 case ResTable_config::UI_MODE_NIGHT_YES: 2864 res.append("night"); 2865 break; 2866 default: 2867 res.appendFormat("uiModeNight=%d", 2868 dtohs(uiMode&MASK_UI_MODE_NIGHT)); 2869 break; 2870 } 2871 } 2872 if (density != DENSITY_DEFAULT) { 2873 if (res.size() > 0) res.append("-"); 2874 switch (density) { 2875 case ResTable_config::DENSITY_LOW: 2876 res.append("ldpi"); 2877 break; 2878 case ResTable_config::DENSITY_MEDIUM: 2879 res.append("mdpi"); 2880 break; 2881 case ResTable_config::DENSITY_TV: 2882 res.append("tvdpi"); 2883 break; 2884 case ResTable_config::DENSITY_HIGH: 2885 res.append("hdpi"); 2886 break; 2887 case ResTable_config::DENSITY_XHIGH: 2888 res.append("xhdpi"); 2889 break; 2890 case ResTable_config::DENSITY_XXHIGH: 2891 res.append("xxhdpi"); 2892 break; 2893 case ResTable_config::DENSITY_XXXHIGH: 2894 res.append("xxxhdpi"); 2895 break; 2896 case ResTable_config::DENSITY_NONE: 2897 res.append("nodpi"); 2898 break; 2899 case ResTable_config::DENSITY_ANY: 2900 res.append("anydpi"); 2901 break; 2902 default: 2903 res.appendFormat("%ddpi", dtohs(density)); 2904 break; 2905 } 2906 } 2907 if (touchscreen != TOUCHSCREEN_ANY) { 2908 if (res.size() > 0) res.append("-"); 2909 switch (touchscreen) { 2910 case ResTable_config::TOUCHSCREEN_NOTOUCH: 2911 res.append("notouch"); 2912 break; 2913 case ResTable_config::TOUCHSCREEN_FINGER: 2914 res.append("finger"); 2915 break; 2916 case ResTable_config::TOUCHSCREEN_STYLUS: 2917 res.append("stylus"); 2918 break; 2919 default: 2920 res.appendFormat("touchscreen=%d", dtohs(touchscreen)); 2921 break; 2922 } 2923 } 2924 if ((inputFlags&MASK_KEYSHIDDEN) != 0) { 2925 if (res.size() > 0) res.append("-"); 2926 switch (inputFlags&MASK_KEYSHIDDEN) { 2927 case ResTable_config::KEYSHIDDEN_NO: 2928 res.append("keysexposed"); 2929 break; 2930 case ResTable_config::KEYSHIDDEN_YES: 2931 res.append("keyshidden"); 2932 break; 2933 case ResTable_config::KEYSHIDDEN_SOFT: 2934 res.append("keyssoft"); 2935 break; 2936 } 2937 } 2938 if (keyboard != KEYBOARD_ANY) { 2939 if (res.size() > 0) res.append("-"); 2940 switch (keyboard) { 2941 case ResTable_config::KEYBOARD_NOKEYS: 2942 res.append("nokeys"); 2943 break; 2944 case ResTable_config::KEYBOARD_QWERTY: 2945 res.append("qwerty"); 2946 break; 2947 case ResTable_config::KEYBOARD_12KEY: 2948 res.append("12key"); 2949 break; 2950 default: 2951 res.appendFormat("keyboard=%d", dtohs(keyboard)); 2952 break; 2953 } 2954 } 2955 if ((inputFlags&MASK_NAVHIDDEN) != 0) { 2956 if (res.size() > 0) res.append("-"); 2957 switch (inputFlags&MASK_NAVHIDDEN) { 2958 case ResTable_config::NAVHIDDEN_NO: 2959 res.append("navexposed"); 2960 break; 2961 case ResTable_config::NAVHIDDEN_YES: 2962 res.append("navhidden"); 2963 break; 2964 default: 2965 res.appendFormat("inputFlagsNavHidden=%d", 2966 dtohs(inputFlags&MASK_NAVHIDDEN)); 2967 break; 2968 } 2969 } 2970 if (navigation != NAVIGATION_ANY) { 2971 if (res.size() > 0) res.append("-"); 2972 switch (navigation) { 2973 case ResTable_config::NAVIGATION_NONAV: 2974 res.append("nonav"); 2975 break; 2976 case ResTable_config::NAVIGATION_DPAD: 2977 res.append("dpad"); 2978 break; 2979 case ResTable_config::NAVIGATION_TRACKBALL: 2980 res.append("trackball"); 2981 break; 2982 case ResTable_config::NAVIGATION_WHEEL: 2983 res.append("wheel"); 2984 break; 2985 default: 2986 res.appendFormat("navigation=%d", dtohs(navigation)); 2987 break; 2988 } 2989 } 2990 if (screenSize != 0) { 2991 if (res.size() > 0) res.append("-"); 2992 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight)); 2993 } 2994 if (version != 0) { 2995 if (res.size() > 0) res.append("-"); 2996 res.appendFormat("v%d", dtohs(sdkVersion)); 2997 if (minorVersion != 0) { 2998 res.appendFormat(".%d", dtohs(minorVersion)); 2999 } 3000 } 3001 3002 return res; 3003 } 3004 3005 // -------------------------------------------------------------------- 3006 // -------------------------------------------------------------------- 3007 // -------------------------------------------------------------------- 3008 3009 struct ResTable::Header 3010 { 3011 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL), 3012 resourceIDMap(NULL), resourceIDMapSize(0) { } 3013 3014 ~Header() 3015 { 3016 free(resourceIDMap); 3017 } 3018 3019 const ResTable* const owner; 3020 void* ownedData; 3021 const ResTable_header* header; 3022 size_t size; 3023 const uint8_t* dataEnd; 3024 size_t index; 3025 int32_t cookie; 3026 3027 ResStringPool values; 3028 uint32_t* resourceIDMap; 3029 size_t resourceIDMapSize; 3030 }; 3031 3032 struct ResTable::Entry { 3033 ResTable_config config; 3034 const ResTable_entry* entry; 3035 const ResTable_type* type; 3036 uint32_t specFlags; 3037 const Package* package; 3038 3039 StringPoolRef typeStr; 3040 StringPoolRef keyStr; 3041 }; 3042 3043 struct ResTable::Type 3044 { 3045 Type(const Header* _header, const Package* _package, size_t count) 3046 : header(_header), package(_package), entryCount(count), 3047 typeSpec(NULL), typeSpecFlags(NULL) { } 3048 const Header* const header; 3049 const Package* const package; 3050 const size_t entryCount; 3051 const ResTable_typeSpec* typeSpec; 3052 const uint32_t* typeSpecFlags; 3053 IdmapEntries idmapEntries; 3054 Vector<const ResTable_type*> configs; 3055 }; 3056 3057 struct ResTable::Package 3058 { 3059 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package) 3060 : owner(_owner), header(_header), package(_package), typeIdOffset(0) { 3061 if (dtohs(package->header.headerSize) == sizeof(package)) { 3062 // The package structure is the same size as the definition. 3063 // This means it contains the typeIdOffset field. 3064 typeIdOffset = package->typeIdOffset; 3065 } 3066 } 3067 3068 const ResTable* const owner; 3069 const Header* const header; 3070 const ResTable_package* const package; 3071 3072 ResStringPool typeStrings; 3073 ResStringPool keyStrings; 3074 3075 size_t typeIdOffset; 3076 }; 3077 3078 // A group of objects describing a particular resource package. 3079 // The first in 'package' is always the root object (from the resource 3080 // table that defined the package); the ones after are skins on top of it. 3081 struct ResTable::PackageGroup 3082 { 3083 PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id) 3084 : owner(_owner) 3085 , name(_name) 3086 , id(_id) 3087 , largestTypeId(0) 3088 , bags(NULL) 3089 , dynamicRefTable(static_cast<uint8_t>(_id)) 3090 { } 3091 3092 ~PackageGroup() { 3093 clearBagCache(); 3094 const size_t numTypes = types.size(); 3095 for (size_t i = 0; i < numTypes; i++) { 3096 const TypeList& typeList = types[i]; 3097 const size_t numInnerTypes = typeList.size(); 3098 for (size_t j = 0; j < numInnerTypes; j++) { 3099 if (typeList[j]->package->owner == owner) { 3100 delete typeList[j]; 3101 } 3102 } 3103 } 3104 3105 const size_t N = packages.size(); 3106 for (size_t i=0; i<N; i++) { 3107 Package* pkg = packages[i]; 3108 if (pkg->owner == owner) { 3109 delete pkg; 3110 } 3111 } 3112 } 3113 3114 void clearBagCache() { 3115 if (bags) { 3116 if (kDebugTableNoisy) { 3117 printf("bags=%p\n", bags); 3118 } 3119 for (size_t i = 0; i < bags->size(); i++) { 3120 if (kDebugTableNoisy) { 3121 printf("type=%zu\n", i); 3122 } 3123 const TypeList& typeList = types[i]; 3124 if (!typeList.isEmpty()) { 3125 bag_set** typeBags = bags->get(i); 3126 if (kDebugTableNoisy) { 3127 printf("typeBags=%p\n", typeBags); 3128 } 3129 if (typeBags) { 3130 const size_t N = typeList[0]->entryCount; 3131 if (kDebugTableNoisy) { 3132 printf("type->entryCount=%zu\n", N); 3133 } 3134 for (size_t j = 0; j < N; j++) { 3135 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF) 3136 free(typeBags[j]); 3137 } 3138 free(typeBags); 3139 } 3140 } 3141 } 3142 delete bags; 3143 bags = NULL; 3144 } 3145 } 3146 3147 ssize_t findType16(const char16_t* type, size_t len) const { 3148 const size_t N = packages.size(); 3149 for (size_t i = 0; i < N; i++) { 3150 ssize_t index = packages[i]->typeStrings.indexOfString(type, len); 3151 if (index >= 0) { 3152 return index + packages[i]->typeIdOffset; 3153 } 3154 } 3155 return -1; 3156 } 3157 3158 const ResTable* const owner; 3159 String16 const name; 3160 uint32_t const id; 3161 3162 // This is mainly used to keep track of the loaded packages 3163 // and to clean them up properly. Accessing resources happens from 3164 // the 'types' array. 3165 Vector<Package*> packages; 3166 3167 ByteBucketArray<TypeList> types; 3168 3169 uint8_t largestTypeId; 3170 3171 // Computed attribute bags, first indexed by the type and second 3172 // by the entry in that type. 3173 ByteBucketArray<bag_set**>* bags; 3174 3175 // The table mapping dynamic references to resolved references for 3176 // this package group. 3177 // TODO: We may be able to support dynamic references in overlays 3178 // by having these tables in a per-package scope rather than 3179 // per-package-group. 3180 DynamicRefTable dynamicRefTable; 3181 }; 3182 3183 struct ResTable::bag_set 3184 { 3185 size_t numAttrs; // number in array 3186 size_t availAttrs; // total space in array 3187 uint32_t typeSpecFlags; 3188 // Followed by 'numAttr' bag_entry structures. 3189 }; 3190 3191 ResTable::Theme::Theme(const ResTable& table) 3192 : mTable(table) 3193 , mTypeSpecFlags(0) 3194 { 3195 memset(mPackages, 0, sizeof(mPackages)); 3196 } 3197 3198 ResTable::Theme::~Theme() 3199 { 3200 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3201 package_info* pi = mPackages[i]; 3202 if (pi != NULL) { 3203 free_package(pi); 3204 } 3205 } 3206 } 3207 3208 void ResTable::Theme::free_package(package_info* pi) 3209 { 3210 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3211 theme_entry* te = pi->types[j].entries; 3212 if (te != NULL) { 3213 free(te); 3214 } 3215 } 3216 free(pi); 3217 } 3218 3219 ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi) 3220 { 3221 package_info* newpi = (package_info*)malloc(sizeof(package_info)); 3222 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3223 size_t cnt = pi->types[j].numEntries; 3224 newpi->types[j].numEntries = cnt; 3225 theme_entry* te = pi->types[j].entries; 3226 size_t cnt_max = SIZE_MAX / sizeof(theme_entry); 3227 if (te != NULL && (cnt < 0xFFFFFFFF-1) && (cnt < cnt_max)) { 3228 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry)); 3229 newpi->types[j].entries = newte; 3230 memcpy(newte, te, cnt*sizeof(theme_entry)); 3231 } else { 3232 newpi->types[j].entries = NULL; 3233 } 3234 } 3235 return newpi; 3236 } 3237 3238 status_t ResTable::Theme::applyStyle(uint32_t resID, bool force) 3239 { 3240 const bag_entry* bag; 3241 uint32_t bagTypeSpecFlags = 0; 3242 mTable.lock(); 3243 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags); 3244 if (kDebugTableNoisy) { 3245 ALOGV("Applying style 0x%08x to theme %p, count=%zu", resID, this, N); 3246 } 3247 if (N < 0) { 3248 mTable.unlock(); 3249 return N; 3250 } 3251 3252 mTypeSpecFlags |= bagTypeSpecFlags; 3253 3254 uint32_t curPackage = 0xffffffff; 3255 ssize_t curPackageIndex = 0; 3256 package_info* curPI = NULL; 3257 uint32_t curType = 0xffffffff; 3258 size_t numEntries = 0; 3259 theme_entry* curEntries = NULL; 3260 3261 const bag_entry* end = bag + N; 3262 while (bag < end) { 3263 const uint32_t attrRes = bag->map.name.ident; 3264 const uint32_t p = Res_GETPACKAGE(attrRes); 3265 const uint32_t t = Res_GETTYPE(attrRes); 3266 const uint32_t e = Res_GETENTRY(attrRes); 3267 3268 if (curPackage != p) { 3269 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes); 3270 if (pidx < 0) { 3271 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes); 3272 bag++; 3273 continue; 3274 } 3275 curPackage = p; 3276 curPackageIndex = pidx; 3277 curPI = mPackages[pidx]; 3278 if (curPI == NULL) { 3279 curPI = (package_info*)malloc(sizeof(package_info)); 3280 memset(curPI, 0, sizeof(*curPI)); 3281 mPackages[pidx] = curPI; 3282 } 3283 curType = 0xffffffff; 3284 } 3285 if (curType != t) { 3286 if (t > Res_MAXTYPE) { 3287 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes); 3288 bag++; 3289 continue; 3290 } 3291 curType = t; 3292 curEntries = curPI->types[t].entries; 3293 if (curEntries == NULL) { 3294 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex]; 3295 const TypeList& typeList = grp->types[t]; 3296 size_t cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount; 3297 size_t cnt_max = SIZE_MAX / sizeof(theme_entry); 3298 size_t buff_size = (cnt < cnt_max && cnt < 0xFFFFFFFF-1) ? 3299 cnt*sizeof(theme_entry) : 0; 3300 curEntries = (theme_entry*)malloc(buff_size); 3301 memset(curEntries, Res_value::TYPE_NULL, buff_size); 3302 curPI->types[t].numEntries = cnt; 3303 curPI->types[t].entries = curEntries; 3304 } 3305 numEntries = curPI->types[t].numEntries; 3306 } 3307 if (e >= numEntries) { 3308 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes); 3309 bag++; 3310 continue; 3311 } 3312 theme_entry* curEntry = curEntries + e; 3313 if (kDebugTableNoisy) { 3314 ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x", 3315 attrRes, bag->map.value.dataType, bag->map.value.data, 3316 curEntry->value.dataType); 3317 } 3318 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) { 3319 curEntry->stringBlock = bag->stringBlock; 3320 curEntry->typeSpecFlags |= bagTypeSpecFlags; 3321 curEntry->value = bag->map.value; 3322 } 3323 3324 bag++; 3325 } 3326 3327 mTable.unlock(); 3328 3329 if (kDebugTableTheme) { 3330 ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this); 3331 dumpToLog(); 3332 } 3333 3334 return NO_ERROR; 3335 } 3336 3337 status_t ResTable::Theme::setTo(const Theme& other) 3338 { 3339 if (kDebugTableTheme) { 3340 ALOGI("Setting theme %p from theme %p...\n", this, &other); 3341 dumpToLog(); 3342 other.dumpToLog(); 3343 } 3344 3345 if (&mTable == &other.mTable) { 3346 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3347 if (mPackages[i] != NULL) { 3348 free_package(mPackages[i]); 3349 } 3350 if (other.mPackages[i] != NULL) { 3351 mPackages[i] = copy_package(other.mPackages[i]); 3352 } else { 3353 mPackages[i] = NULL; 3354 } 3355 } 3356 } else { 3357 // @todo: need to really implement this, not just copy 3358 // the system package (which is still wrong because it isn't 3359 // fixing up resource references). 3360 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3361 if (mPackages[i] != NULL) { 3362 free_package(mPackages[i]); 3363 } 3364 if (i == 0 && other.mPackages[i] != NULL) { 3365 mPackages[i] = copy_package(other.mPackages[i]); 3366 } else { 3367 mPackages[i] = NULL; 3368 } 3369 } 3370 } 3371 3372 mTypeSpecFlags = other.mTypeSpecFlags; 3373 3374 if (kDebugTableTheme) { 3375 ALOGI("Final theme:"); 3376 dumpToLog(); 3377 } 3378 3379 return NO_ERROR; 3380 } 3381 3382 status_t ResTable::Theme::clear() 3383 { 3384 if (kDebugTableTheme) { 3385 ALOGI("Clearing theme %p...\n", this); 3386 dumpToLog(); 3387 } 3388 3389 for (size_t i = 0; i < Res_MAXPACKAGE; i++) { 3390 if (mPackages[i] != NULL) { 3391 free_package(mPackages[i]); 3392 mPackages[i] = NULL; 3393 } 3394 } 3395 3396 mTypeSpecFlags = 0; 3397 3398 if (kDebugTableTheme) { 3399 ALOGI("Final theme:"); 3400 dumpToLog(); 3401 } 3402 3403 return NO_ERROR; 3404 } 3405 3406 ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue, 3407 uint32_t* outTypeSpecFlags) const 3408 { 3409 int cnt = 20; 3410 3411 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0; 3412 3413 do { 3414 const ssize_t p = mTable.getResourcePackageIndex(resID); 3415 const uint32_t t = Res_GETTYPE(resID); 3416 const uint32_t e = Res_GETENTRY(resID); 3417 3418 if (kDebugTableTheme) { 3419 ALOGI("Looking up attr 0x%08x in theme %p", resID, this); 3420 } 3421 3422 if (p >= 0) { 3423 const package_info* const pi = mPackages[p]; 3424 if (kDebugTableTheme) { 3425 ALOGI("Found package: %p", pi); 3426 } 3427 if (pi != NULL) { 3428 if (kDebugTableTheme) { 3429 ALOGI("Desired type index is %zd in avail %zu", t, Res_MAXTYPE + 1); 3430 } 3431 if (t <= Res_MAXTYPE) { 3432 const type_info& ti = pi->types[t]; 3433 if (kDebugTableTheme) { 3434 ALOGI("Desired entry index is %u in avail %zu", e, ti.numEntries); 3435 } 3436 if (e < ti.numEntries) { 3437 const theme_entry& te = ti.entries[e]; 3438 if (outTypeSpecFlags != NULL) { 3439 *outTypeSpecFlags |= te.typeSpecFlags; 3440 } 3441 if (kDebugTableTheme) { 3442 ALOGI("Theme value: type=0x%x, data=0x%08x", 3443 te.value.dataType, te.value.data); 3444 } 3445 const uint8_t type = te.value.dataType; 3446 if (type == Res_value::TYPE_ATTRIBUTE) { 3447 if (cnt > 0) { 3448 cnt--; 3449 resID = te.value.data; 3450 continue; 3451 } 3452 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID); 3453 return BAD_INDEX; 3454 } else if (type != Res_value::TYPE_NULL) { 3455 *outValue = te.value; 3456 return te.stringBlock; 3457 } 3458 return BAD_INDEX; 3459 } 3460 } 3461 } 3462 } 3463 break; 3464 3465 } while (true); 3466 3467 return BAD_INDEX; 3468 } 3469 3470 ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue, 3471 ssize_t blockIndex, uint32_t* outLastRef, 3472 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const 3473 { 3474 //printf("Resolving type=0x%x\n", inOutValue->dataType); 3475 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) { 3476 uint32_t newTypeSpecFlags; 3477 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags); 3478 if (kDebugTableTheme) { 3479 ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=0x%x\n", 3480 (int)blockIndex, (int)inOutValue->dataType, inOutValue->data); 3481 } 3482 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags; 3483 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType); 3484 if (blockIndex < 0) { 3485 return blockIndex; 3486 } 3487 } 3488 return mTable.resolveReference(inOutValue, blockIndex, outLastRef, 3489 inoutTypeSpecFlags, inoutConfig); 3490 } 3491 3492 uint32_t ResTable::Theme::getChangingConfigurations() const 3493 { 3494 return mTypeSpecFlags; 3495 } 3496 3497 void ResTable::Theme::dumpToLog() const 3498 { 3499 ALOGI("Theme %p:\n", this); 3500 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3501 package_info* pi = mPackages[i]; 3502 if (pi == NULL) continue; 3503 3504 ALOGI(" Package #0x%02x:\n", (int)(i + 1)); 3505 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3506 type_info& ti = pi->types[j]; 3507 if (ti.numEntries == 0) continue; 3508 ALOGI(" Type #0x%02x:\n", (int)(j + 1)); 3509 for (size_t k = 0; k < ti.numEntries; k++) { 3510 const theme_entry& te = ti.entries[k]; 3511 if (te.value.dataType == Res_value::TYPE_NULL) continue; 3512 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n", 3513 (int)Res_MAKEID(i, j, k), 3514 te.value.dataType, (int)te.value.data, (int)te.stringBlock); 3515 } 3516 } 3517 } 3518 } 3519 3520 ResTable::ResTable() 3521 : mError(NO_INIT), mNextPackageId(2) 3522 { 3523 memset(&mParams, 0, sizeof(mParams)); 3524 memset(mPackageMap, 0, sizeof(mPackageMap)); 3525 if (kDebugTableSuperNoisy) { 3526 ALOGI("Creating ResTable %p\n", this); 3527 } 3528 } 3529 3530 ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData) 3531 : mError(NO_INIT), mNextPackageId(2) 3532 { 3533 memset(&mParams, 0, sizeof(mParams)); 3534 memset(mPackageMap, 0, sizeof(mPackageMap)); 3535 addInternal(data, size, NULL, 0, cookie, copyData); 3536 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table"); 3537 if (kDebugTableSuperNoisy) { 3538 ALOGI("Creating ResTable %p\n", this); 3539 } 3540 } 3541 3542 ResTable::~ResTable() 3543 { 3544 if (kDebugTableSuperNoisy) { 3545 ALOGI("Destroying ResTable in %p\n", this); 3546 } 3547 uninit(); 3548 } 3549 3550 inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const 3551 { 3552 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1; 3553 } 3554 3555 status_t ResTable::add(const void* data, size_t size, const int32_t cookie, bool copyData) { 3556 return addInternal(data, size, NULL, 0, cookie, copyData); 3557 } 3558 3559 status_t ResTable::add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize, 3560 const int32_t cookie, bool copyData) { 3561 return addInternal(data, size, idmapData, idmapDataSize, cookie, copyData); 3562 } 3563 3564 status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData) { 3565 const void* data = asset->getBuffer(true); 3566 if (data == NULL) { 3567 ALOGW("Unable to get buffer of resource asset file"); 3568 return UNKNOWN_ERROR; 3569 } 3570 3571 return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, 0, cookie, copyData); 3572 } 3573 3574 status_t ResTable::add(Asset* asset, Asset* idmapAsset, const int32_t cookie, bool copyData) { 3575 const void* data = asset->getBuffer(true); 3576 if (data == NULL) { 3577 ALOGW("Unable to get buffer of resource asset file"); 3578 return UNKNOWN_ERROR; 3579 } 3580 3581 size_t idmapSize = 0; 3582 const void* idmapData = NULL; 3583 if (idmapAsset != NULL) { 3584 idmapData = idmapAsset->getBuffer(true); 3585 if (idmapData == NULL) { 3586 ALOGW("Unable to get buffer of idmap asset file"); 3587 return UNKNOWN_ERROR; 3588 } 3589 idmapSize = static_cast<size_t>(idmapAsset->getLength()); 3590 } 3591 3592 return addInternal(data, static_cast<size_t>(asset->getLength()), 3593 idmapData, idmapSize, cookie, copyData); 3594 } 3595 3596 status_t ResTable::add(ResTable* src) 3597 { 3598 mError = src->mError; 3599 3600 for (size_t i=0; i<src->mHeaders.size(); i++) { 3601 mHeaders.add(src->mHeaders[i]); 3602 } 3603 3604 for (size_t i=0; i<src->mPackageGroups.size(); i++) { 3605 PackageGroup* srcPg = src->mPackageGroups[i]; 3606 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id); 3607 for (size_t j=0; j<srcPg->packages.size(); j++) { 3608 pg->packages.add(srcPg->packages[j]); 3609 } 3610 3611 for (size_t j = 0; j < srcPg->types.size(); j++) { 3612 if (srcPg->types[j].isEmpty()) { 3613 continue; 3614 } 3615 3616 TypeList& typeList = pg->types.editItemAt(j); 3617 typeList.appendVector(srcPg->types[j]); 3618 } 3619 pg->dynamicRefTable.addMappings(srcPg->dynamicRefTable); 3620 pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId); 3621 mPackageGroups.add(pg); 3622 } 3623 3624 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap)); 3625 3626 return mError; 3627 } 3628 3629 status_t ResTable::addEmpty(const int32_t cookie) { 3630 Header* header = new Header(this); 3631 header->index = mHeaders.size(); 3632 header->cookie = cookie; 3633 header->values.setToEmpty(); 3634 header->ownedData = calloc(1, sizeof(ResTable_header)); 3635 3636 ResTable_header* resHeader = (ResTable_header*) header->ownedData; 3637 resHeader->header.type = RES_TABLE_TYPE; 3638 resHeader->header.headerSize = sizeof(ResTable_header); 3639 resHeader->header.size = sizeof(ResTable_header); 3640 3641 header->header = (const ResTable_header*) resHeader; 3642 mHeaders.add(header); 3643 return (mError=NO_ERROR); 3644 } 3645 3646 status_t ResTable::addInternal(const void* data, size_t dataSize, const void* idmapData, size_t idmapDataSize, 3647 const int32_t cookie, bool copyData) 3648 { 3649 if (!data) { 3650 return NO_ERROR; 3651 } 3652 3653 if (dataSize < sizeof(ResTable_header)) { 3654 ALOGE("Invalid data. Size(%d) is smaller than a ResTable_header(%d).", 3655 (int) dataSize, (int) sizeof(ResTable_header)); 3656 return UNKNOWN_ERROR; 3657 } 3658 3659 Header* header = new Header(this); 3660 header->index = mHeaders.size(); 3661 header->cookie = cookie; 3662 if (idmapData != NULL) { 3663 header->resourceIDMap = (uint32_t*) malloc(idmapDataSize); 3664 if (header->resourceIDMap == NULL) { 3665 delete header; 3666 return (mError = NO_MEMORY); 3667 } 3668 memcpy(header->resourceIDMap, idmapData, idmapDataSize); 3669 header->resourceIDMapSize = idmapDataSize; 3670 } 3671 mHeaders.add(header); 3672 3673 const bool notDeviceEndian = htods(0xf0) != 0xf0; 3674 3675 if (kDebugLoadTableNoisy) { 3676 ALOGV("Adding resources to ResTable: data=%p, size=%zu, cookie=%d, copy=%d " 3677 "idmap=%p\n", data, dataSize, cookie, copyData, idmapData); 3678 } 3679 3680 if (copyData || notDeviceEndian) { 3681 header->ownedData = malloc(dataSize); 3682 if (header->ownedData == NULL) { 3683 return (mError=NO_MEMORY); 3684 } 3685 memcpy(header->ownedData, data, dataSize); 3686 data = header->ownedData; 3687 } 3688 3689 header->header = (const ResTable_header*)data; 3690 header->size = dtohl(header->header->header.size); 3691 if (kDebugLoadTableSuperNoisy) { 3692 ALOGI("Got size %zu, again size 0x%x, raw size 0x%x\n", header->size, 3693 dtohl(header->header->header.size), header->header->header.size); 3694 } 3695 if (kDebugLoadTableNoisy) { 3696 ALOGV("Loading ResTable @%p:\n", header->header); 3697 } 3698 if (dtohs(header->header->header.headerSize) > header->size 3699 || header->size > dataSize) { 3700 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n", 3701 (int)dtohs(header->header->header.headerSize), 3702 (int)header->size, (int)dataSize); 3703 return (mError=BAD_TYPE); 3704 } 3705 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) { 3706 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n", 3707 (int)dtohs(header->header->header.headerSize), 3708 (int)header->size); 3709 return (mError=BAD_TYPE); 3710 } 3711 header->dataEnd = ((const uint8_t*)header->header) + header->size; 3712 3713 // Iterate through all chunks. 3714 size_t curPackage = 0; 3715 3716 const ResChunk_header* chunk = 3717 (const ResChunk_header*)(((const uint8_t*)header->header) 3718 + dtohs(header->header->header.headerSize)); 3719 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) && 3720 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) { 3721 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable"); 3722 if (err != NO_ERROR) { 3723 return (mError=err); 3724 } 3725 if (kDebugTableNoisy) { 3726 ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 3727 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 3728 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 3729 } 3730 const size_t csize = dtohl(chunk->size); 3731 const uint16_t ctype = dtohs(chunk->type); 3732 if (ctype == RES_STRING_POOL_TYPE) { 3733 if (header->values.getError() != NO_ERROR) { 3734 // Only use the first string chunk; ignore any others that 3735 // may appear. 3736 status_t err = header->values.setTo(chunk, csize); 3737 if (err != NO_ERROR) { 3738 return (mError=err); 3739 } 3740 } else { 3741 ALOGW("Multiple string chunks found in resource table."); 3742 } 3743 } else if (ctype == RES_TABLE_PACKAGE_TYPE) { 3744 if (curPackage >= dtohl(header->header->packageCount)) { 3745 ALOGW("More package chunks were found than the %d declared in the header.", 3746 dtohl(header->header->packageCount)); 3747 return (mError=BAD_TYPE); 3748 } 3749 3750 if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) { 3751 return mError; 3752 } 3753 curPackage++; 3754 } else { 3755 ALOGW("Unknown chunk type 0x%x in table at %p.\n", 3756 ctype, 3757 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 3758 } 3759 chunk = (const ResChunk_header*) 3760 (((const uint8_t*)chunk) + csize); 3761 } 3762 3763 if (curPackage < dtohl(header->header->packageCount)) { 3764 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.", 3765 (int)curPackage, dtohl(header->header->packageCount)); 3766 return (mError=BAD_TYPE); 3767 } 3768 mError = header->values.getError(); 3769 if (mError != NO_ERROR) { 3770 ALOGW("No string values found in resource table!"); 3771 } 3772 3773 if (kDebugTableNoisy) { 3774 ALOGV("Returning from add with mError=%d\n", mError); 3775 } 3776 return mError; 3777 } 3778 3779 status_t ResTable::getError() const 3780 { 3781 return mError; 3782 } 3783 3784 void ResTable::uninit() 3785 { 3786 mError = NO_INIT; 3787 size_t N = mPackageGroups.size(); 3788 for (size_t i=0; i<N; i++) { 3789 PackageGroup* g = mPackageGroups[i]; 3790 delete g; 3791 } 3792 N = mHeaders.size(); 3793 for (size_t i=0; i<N; i++) { 3794 Header* header = mHeaders[i]; 3795 if (header->owner == this) { 3796 if (header->ownedData) { 3797 free(header->ownedData); 3798 } 3799 delete header; 3800 } 3801 } 3802 3803 mPackageGroups.clear(); 3804 mHeaders.clear(); 3805 } 3806 3807 bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const 3808 { 3809 if (mError != NO_ERROR) { 3810 return false; 3811 } 3812 3813 const ssize_t p = getResourcePackageIndex(resID); 3814 const int t = Res_GETTYPE(resID); 3815 const int e = Res_GETENTRY(resID); 3816 3817 if (p < 0) { 3818 if (Res_GETPACKAGE(resID)+1 == 0) { 3819 ALOGW("No package identifier when getting name for resource number 0x%08x", resID); 3820 } else { 3821 ALOGW("No known package when getting name for resource number 0x%08x", resID); 3822 } 3823 return false; 3824 } 3825 if (t < 0) { 3826 ALOGW("No type identifier when getting name for resource number 0x%08x", resID); 3827 return false; 3828 } 3829 3830 const PackageGroup* const grp = mPackageGroups[p]; 3831 if (grp == NULL) { 3832 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID); 3833 return false; 3834 } 3835 3836 Entry entry; 3837 status_t err = getEntry(grp, t, e, NULL, &entry); 3838 if (err != NO_ERROR) { 3839 return false; 3840 } 3841 3842 outName->package = grp->name.string(); 3843 outName->packageLen = grp->name.size(); 3844 if (allowUtf8) { 3845 outName->type8 = entry.typeStr.string8(&outName->typeLen); 3846 outName->name8 = entry.keyStr.string8(&outName->nameLen); 3847 } else { 3848 outName->type8 = NULL; 3849 outName->name8 = NULL; 3850 } 3851 if (outName->type8 == NULL) { 3852 outName->type = entry.typeStr.string16(&outName->typeLen); 3853 // If we have a bad index for some reason, we should abort. 3854 if (outName->type == NULL) { 3855 return false; 3856 } 3857 } 3858 if (outName->name8 == NULL) { 3859 outName->name = entry.keyStr.string16(&outName->nameLen); 3860 // If we have a bad index for some reason, we should abort. 3861 if (outName->name == NULL) { 3862 return false; 3863 } 3864 } 3865 3866 return true; 3867 } 3868 3869 ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density, 3870 uint32_t* outSpecFlags, ResTable_config* outConfig) const 3871 { 3872 if (mError != NO_ERROR) { 3873 return mError; 3874 } 3875 3876 const ssize_t p = getResourcePackageIndex(resID); 3877 const int t = Res_GETTYPE(resID); 3878 const int e = Res_GETENTRY(resID); 3879 3880 if (p < 0) { 3881 if (Res_GETPACKAGE(resID)+1 == 0) { 3882 ALOGW("No package identifier when getting value for resource number 0x%08x", resID); 3883 } else { 3884 ALOGW("No known package when getting value for resource number 0x%08x", resID); 3885 } 3886 return BAD_INDEX; 3887 } 3888 if (t < 0) { 3889 ALOGW("No type identifier when getting value for resource number 0x%08x", resID); 3890 return BAD_INDEX; 3891 } 3892 3893 const PackageGroup* const grp = mPackageGroups[p]; 3894 if (grp == NULL) { 3895 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID); 3896 return BAD_INDEX; 3897 } 3898 3899 // Allow overriding density 3900 ResTable_config desiredConfig = mParams; 3901 if (density > 0) { 3902 desiredConfig.density = density; 3903 } 3904 3905 Entry entry; 3906 status_t err = getEntry(grp, t, e, &desiredConfig, &entry); 3907 if (err != NO_ERROR) { 3908 // Only log the failure when we're not running on the host as 3909 // part of a tool. The caller will do its own logging. 3910 #ifndef STATIC_ANDROIDFW_FOR_TOOLS 3911 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n", 3912 resID, t, e, err); 3913 #endif 3914 return err; 3915 } 3916 3917 if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) { 3918 if (!mayBeBag) { 3919 ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID); 3920 } 3921 return BAD_VALUE; 3922 } 3923 3924 const Res_value* value = reinterpret_cast<const Res_value*>( 3925 reinterpret_cast<const uint8_t*>(entry.entry) + entry.entry->size); 3926 3927 outValue->size = dtohs(value->size); 3928 outValue->res0 = value->res0; 3929 outValue->dataType = value->dataType; 3930 outValue->data = dtohl(value->data); 3931 3932 // The reference may be pointing to a resource in a shared library. These 3933 // references have build-time generated package IDs. These ids may not match 3934 // the actual package IDs of the corresponding packages in this ResTable. 3935 // We need to fix the package ID based on a mapping. 3936 if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) { 3937 ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data); 3938 return BAD_VALUE; 3939 } 3940 3941 if (kDebugTableNoisy) { 3942 size_t len; 3943 printf("Found value: pkg=%zu, type=%d, str=%s, int=%d\n", 3944 entry.package->header->index, 3945 outValue->dataType, 3946 outValue->dataType == Res_value::TYPE_STRING ? 3947 String8(entry.package->header->values.stringAt(outValue->data, &len)).string() : 3948 "", 3949 outValue->data); 3950 } 3951 3952 if (outSpecFlags != NULL) { 3953 *outSpecFlags = entry.specFlags; 3954 } 3955 3956 if (outConfig != NULL) { 3957 *outConfig = entry.config; 3958 } 3959 3960 return entry.package->header->index; 3961 } 3962 3963 ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex, 3964 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags, 3965 ResTable_config* outConfig) const 3966 { 3967 int count=0; 3968 while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE 3969 && value->data != 0 && count < 20) { 3970 if (outLastRef) *outLastRef = value->data; 3971 uint32_t newFlags = 0; 3972 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags, 3973 outConfig); 3974 if (newIndex == BAD_INDEX) { 3975 return BAD_INDEX; 3976 } 3977 if (kDebugTableTheme) { 3978 ALOGI("Resolving reference 0x%x: newIndex=%d, type=0x%x, data=0x%x\n", 3979 value->data, (int)newIndex, (int)value->dataType, value->data); 3980 } 3981 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex); 3982 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags; 3983 if (newIndex < 0) { 3984 // This can fail if the resource being referenced is a style... 3985 // in this case, just return the reference, and expect the 3986 // caller to deal with. 3987 return blockIndex; 3988 } 3989 blockIndex = newIndex; 3990 count++; 3991 } 3992 return blockIndex; 3993 } 3994 3995 const char16_t* ResTable::valueToString( 3996 const Res_value* value, size_t stringBlock, 3997 char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen) const 3998 { 3999 if (!value) { 4000 return NULL; 4001 } 4002 if (value->dataType == value->TYPE_STRING) { 4003 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen); 4004 } 4005 // XXX do int to string conversions. 4006 return NULL; 4007 } 4008 4009 ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const 4010 { 4011 mLock.lock(); 4012 ssize_t err = getBagLocked(resID, outBag); 4013 if (err < NO_ERROR) { 4014 //printf("*** get failed! unlocking\n"); 4015 mLock.unlock(); 4016 } 4017 return err; 4018 } 4019 4020 void ResTable::unlockBag(const bag_entry* /*bag*/) const 4021 { 4022 //printf("<<< unlockBag %p\n", this); 4023 mLock.unlock(); 4024 } 4025 4026 void ResTable::lock() const 4027 { 4028 mLock.lock(); 4029 } 4030 4031 void ResTable::unlock() const 4032 { 4033 mLock.unlock(); 4034 } 4035 4036 ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag, 4037 uint32_t* outTypeSpecFlags) const 4038 { 4039 if (mError != NO_ERROR) { 4040 return mError; 4041 } 4042 4043 const ssize_t p = getResourcePackageIndex(resID); 4044 const int t = Res_GETTYPE(resID); 4045 const int e = Res_GETENTRY(resID); 4046 4047 if (p < 0) { 4048 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID); 4049 return BAD_INDEX; 4050 } 4051 if (t < 0) { 4052 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID); 4053 return BAD_INDEX; 4054 } 4055 4056 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t); 4057 PackageGroup* const grp = mPackageGroups[p]; 4058 if (grp == NULL) { 4059 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID); 4060 return BAD_INDEX; 4061 } 4062 4063 const TypeList& typeConfigs = grp->types[t]; 4064 if (typeConfigs.isEmpty()) { 4065 ALOGW("Type identifier 0x%x does not exist.", t+1); 4066 return BAD_INDEX; 4067 } 4068 4069 const size_t NENTRY = typeConfigs[0]->entryCount; 4070 if (e >= (int)NENTRY) { 4071 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x", 4072 e, (int)typeConfigs[0]->entryCount); 4073 return BAD_INDEX; 4074 } 4075 4076 // First see if we've already computed this bag... 4077 if (grp->bags) { 4078 bag_set** typeSet = grp->bags->get(t); 4079 if (typeSet) { 4080 bag_set* set = typeSet[e]; 4081 if (set) { 4082 if (set != (bag_set*)0xFFFFFFFF) { 4083 if (outTypeSpecFlags != NULL) { 4084 *outTypeSpecFlags = set->typeSpecFlags; 4085 } 4086 *outBag = (bag_entry*)(set+1); 4087 if (kDebugTableSuperNoisy) { 4088 ALOGI("Found existing bag for: 0x%x\n", resID); 4089 } 4090 return set->numAttrs; 4091 } 4092 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.", 4093 resID); 4094 return BAD_INDEX; 4095 } 4096 } 4097 } 4098 4099 // Bag not found, we need to compute it! 4100 if (!grp->bags) { 4101 grp->bags = new ByteBucketArray<bag_set**>(); 4102 if (!grp->bags) return NO_MEMORY; 4103 } 4104 4105 bag_set** typeSet = grp->bags->get(t); 4106 if (!typeSet) { 4107 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*)); 4108 if (!typeSet) return NO_MEMORY; 4109 grp->bags->set(t, typeSet); 4110 } 4111 4112 // Mark that we are currently working on this one. 4113 typeSet[e] = (bag_set*)0xFFFFFFFF; 4114 4115 if (kDebugTableNoisy) { 4116 ALOGI("Building bag: %x\n", resID); 4117 } 4118 4119 // Now collect all bag attributes 4120 Entry entry; 4121 status_t err = getEntry(grp, t, e, &mParams, &entry); 4122 if (err != NO_ERROR) { 4123 return err; 4124 } 4125 4126 const uint16_t entrySize = dtohs(entry.entry->size); 4127 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry) 4128 ? dtohl(((const ResTable_map_entry*)entry.entry)->parent.ident) : 0; 4129 const uint32_t count = entrySize >= sizeof(ResTable_map_entry) 4130 ? dtohl(((const ResTable_map_entry*)entry.entry)->count) : 0; 4131 4132 size_t N = count; 4133 4134 if (kDebugTableNoisy) { 4135 ALOGI("Found map: size=%x parent=%x count=%d\n", entrySize, parent, count); 4136 4137 // If this map inherits from another, we need to start 4138 // with its parent's values. Otherwise start out empty. 4139 ALOGI("Creating new bag, entrySize=0x%08x, parent=0x%08x\n", entrySize, parent); 4140 } 4141 4142 // This is what we are building. 4143 bag_set* set = NULL; 4144 4145 if (parent) { 4146 uint32_t resolvedParent = parent; 4147 4148 // Bags encode a parent reference without using the standard 4149 // Res_value structure. That means we must always try to 4150 // resolve a parent reference in case it is actually a 4151 // TYPE_DYNAMIC_REFERENCE. 4152 status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent); 4153 if (err != NO_ERROR) { 4154 ALOGE("Failed resolving bag parent id 0x%08x", parent); 4155 return UNKNOWN_ERROR; 4156 } 4157 4158 const bag_entry* parentBag; 4159 uint32_t parentTypeSpecFlags = 0; 4160 const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags); 4161 const size_t NT = ((NP >= 0) ? NP : 0) + N; 4162 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT); 4163 if (set == NULL) { 4164 return NO_MEMORY; 4165 } 4166 if (NP > 0) { 4167 memcpy(set+1, parentBag, NP*sizeof(bag_entry)); 4168 set->numAttrs = NP; 4169 if (kDebugTableNoisy) { 4170 ALOGI("Initialized new bag with %zd inherited attributes.\n", NP); 4171 } 4172 } else { 4173 if (kDebugTableNoisy) { 4174 ALOGI("Initialized new bag with no inherited attributes.\n"); 4175 } 4176 set->numAttrs = 0; 4177 } 4178 set->availAttrs = NT; 4179 set->typeSpecFlags = parentTypeSpecFlags; 4180 } else { 4181 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N); 4182 if (set == NULL) { 4183 return NO_MEMORY; 4184 } 4185 set->numAttrs = 0; 4186 set->availAttrs = N; 4187 set->typeSpecFlags = 0; 4188 } 4189 4190 set->typeSpecFlags |= entry.specFlags; 4191 4192 // Now merge in the new attributes... 4193 size_t curOff = (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type)) 4194 + dtohs(entry.entry->size); 4195 const ResTable_map* map; 4196 bag_entry* entries = (bag_entry*)(set+1); 4197 size_t curEntry = 0; 4198 uint32_t pos = 0; 4199 if (kDebugTableNoisy) { 4200 ALOGI("Starting with set %p, entries=%p, avail=%zu\n", set, entries, set->availAttrs); 4201 } 4202 while (pos < count) { 4203 if (kDebugTableNoisy) { 4204 ALOGI("Now at %p\n", (void*)curOff); 4205 } 4206 4207 if (curOff > (dtohl(entry.type->header.size)-sizeof(ResTable_map))) { 4208 ALOGW("ResTable_map at %d is beyond type chunk data %d", 4209 (int)curOff, dtohl(entry.type->header.size)); 4210 return BAD_TYPE; 4211 } 4212 map = (const ResTable_map*)(((const uint8_t*)entry.type) + curOff); 4213 N++; 4214 4215 uint32_t newName = htodl(map->name.ident); 4216 if (!Res_INTERNALID(newName)) { 4217 // Attributes don't have a resource id as the name. They specify 4218 // other data, which would be wrong to change via a lookup. 4219 if (grp->dynamicRefTable.lookupResourceId(&newName) != NO_ERROR) { 4220 ALOGE("Failed resolving ResTable_map name at %d with ident 0x%08x", 4221 (int) curOff, (int) newName); 4222 return UNKNOWN_ERROR; 4223 } 4224 } 4225 4226 bool isInside; 4227 uint32_t oldName = 0; 4228 while ((isInside=(curEntry < set->numAttrs)) 4229 && (oldName=entries[curEntry].map.name.ident) < newName) { 4230 if (kDebugTableNoisy) { 4231 ALOGI("#%zu: Keeping existing attribute: 0x%08x\n", 4232 curEntry, entries[curEntry].map.name.ident); 4233 } 4234 curEntry++; 4235 } 4236 4237 if ((!isInside) || oldName != newName) { 4238 // This is a new attribute... figure out what to do with it. 4239 if (set->numAttrs >= set->availAttrs) { 4240 // Need to alloc more memory... 4241 const size_t newAvail = set->availAttrs+N; 4242 set = (bag_set*)realloc(set, 4243 sizeof(bag_set) 4244 + sizeof(bag_entry)*newAvail); 4245 if (set == NULL) { 4246 return NO_MEMORY; 4247 } 4248 set->availAttrs = newAvail; 4249 entries = (bag_entry*)(set+1); 4250 if (kDebugTableNoisy) { 4251 ALOGI("Reallocated set %p, entries=%p, avail=%zu\n", 4252 set, entries, set->availAttrs); 4253 } 4254 } 4255 if (isInside) { 4256 // Going in the middle, need to make space. 4257 memmove(entries+curEntry+1, entries+curEntry, 4258 sizeof(bag_entry)*(set->numAttrs-curEntry)); 4259 set->numAttrs++; 4260 } 4261 if (kDebugTableNoisy) { 4262 ALOGI("#%zu: Inserting new attribute: 0x%08x\n", curEntry, newName); 4263 } 4264 } else { 4265 if (kDebugTableNoisy) { 4266 ALOGI("#%zu: Replacing existing attribute: 0x%08x\n", curEntry, oldName); 4267 } 4268 } 4269 4270 bag_entry* cur = entries+curEntry; 4271 4272 cur->stringBlock = entry.package->header->index; 4273 cur->map.name.ident = newName; 4274 cur->map.value.copyFrom_dtoh(map->value); 4275 status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value); 4276 if (err != NO_ERROR) { 4277 ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data); 4278 return UNKNOWN_ERROR; 4279 } 4280 4281 if (kDebugTableNoisy) { 4282 ALOGI("Setting entry #%zu %p: block=%zd, name=0x%08d, type=%d, data=0x%08x\n", 4283 curEntry, cur, cur->stringBlock, cur->map.name.ident, 4284 cur->map.value.dataType, cur->map.value.data); 4285 } 4286 4287 // On to the next! 4288 curEntry++; 4289 pos++; 4290 const size_t size = dtohs(map->value.size); 4291 curOff += size + sizeof(*map)-sizeof(map->value); 4292 }; 4293 4294 if (curEntry > set->numAttrs) { 4295 set->numAttrs = curEntry; 4296 } 4297 4298 // And this is it... 4299 typeSet[e] = set; 4300 if (set) { 4301 if (outTypeSpecFlags != NULL) { 4302 *outTypeSpecFlags = set->typeSpecFlags; 4303 } 4304 *outBag = (bag_entry*)(set+1); 4305 if (kDebugTableNoisy) { 4306 ALOGI("Returning %zu attrs\n", set->numAttrs); 4307 } 4308 return set->numAttrs; 4309 } 4310 return BAD_INDEX; 4311 } 4312 4313 void ResTable::setParameters(const ResTable_config* params) 4314 { 4315 mLock.lock(); 4316 if (kDebugTableGetEntry) { 4317 ALOGI("Setting parameters: %s\n", params->toString().string()); 4318 } 4319 mParams = *params; 4320 for (size_t i=0; i<mPackageGroups.size(); i++) { 4321 if (kDebugTableNoisy) { 4322 ALOGI("CLEARING BAGS FOR GROUP %zu!", i); 4323 } 4324 mPackageGroups[i]->clearBagCache(); 4325 } 4326 mLock.unlock(); 4327 } 4328 4329 void ResTable::getParameters(ResTable_config* params) const 4330 { 4331 mLock.lock(); 4332 *params = mParams; 4333 mLock.unlock(); 4334 } 4335 4336 struct id_name_map { 4337 uint32_t id; 4338 size_t len; 4339 char16_t name[6]; 4340 }; 4341 4342 const static id_name_map ID_NAMES[] = { 4343 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } }, 4344 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } }, 4345 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } }, 4346 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } }, 4347 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } }, 4348 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } }, 4349 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } }, 4350 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } }, 4351 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } }, 4352 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } }, 4353 }; 4354 4355 uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen, 4356 const char16_t* type, size_t typeLen, 4357 const char16_t* package, 4358 size_t packageLen, 4359 uint32_t* outTypeSpecFlags) const 4360 { 4361 if (kDebugTableSuperNoisy) { 4362 printf("Identifier for name: error=%d\n", mError); 4363 } 4364 4365 // Check for internal resource identifier as the very first thing, so 4366 // that we will always find them even when there are no resources. 4367 if (name[0] == '^') { 4368 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0])); 4369 size_t len; 4370 for (int i=0; i<N; i++) { 4371 const id_name_map* m = ID_NAMES + i; 4372 len = m->len; 4373 if (len != nameLen) { 4374 continue; 4375 } 4376 for (size_t j=1; j<len; j++) { 4377 if (m->name[j] != name[j]) { 4378 goto nope; 4379 } 4380 } 4381 if (outTypeSpecFlags) { 4382 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 4383 } 4384 return m->id; 4385 nope: 4386 ; 4387 } 4388 if (nameLen > 7) { 4389 if (name[1] == 'i' && name[2] == 'n' 4390 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x' 4391 && name[6] == '_') { 4392 int index = atoi(String8(name + 7, nameLen - 7).string()); 4393 if (Res_CHECKID(index)) { 4394 ALOGW("Array resource index: %d is too large.", 4395 index); 4396 return 0; 4397 } 4398 if (outTypeSpecFlags) { 4399 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 4400 } 4401 return Res_MAKEARRAY(index); 4402 } 4403 } 4404 return 0; 4405 } 4406 4407 if (mError != NO_ERROR) { 4408 return 0; 4409 } 4410 4411 bool fakePublic = false; 4412 4413 // Figure out the package and type we are looking in... 4414 4415 const char16_t* packageEnd = NULL; 4416 const char16_t* typeEnd = NULL; 4417 const char16_t* const nameEnd = name+nameLen; 4418 const char16_t* p = name; 4419 while (p < nameEnd) { 4420 if (*p == ':') packageEnd = p; 4421 else if (*p == '/') typeEnd = p; 4422 p++; 4423 } 4424 if (*name == '@') { 4425 name++; 4426 if (*name == '*') { 4427 fakePublic = true; 4428 name++; 4429 } 4430 } 4431 if (name >= nameEnd) { 4432 return 0; 4433 } 4434 4435 if (packageEnd) { 4436 package = name; 4437 packageLen = packageEnd-name; 4438 name = packageEnd+1; 4439 } else if (!package) { 4440 return 0; 4441 } 4442 4443 if (typeEnd) { 4444 type = name; 4445 typeLen = typeEnd-name; 4446 name = typeEnd+1; 4447 } else if (!type) { 4448 return 0; 4449 } 4450 4451 if (name >= nameEnd) { 4452 return 0; 4453 } 4454 nameLen = nameEnd-name; 4455 4456 if (kDebugTableNoisy) { 4457 printf("Looking for identifier: type=%s, name=%s, package=%s\n", 4458 String8(type, typeLen).string(), 4459 String8(name, nameLen).string(), 4460 String8(package, packageLen).string()); 4461 } 4462 4463 const String16 attr("attr"); 4464 const String16 attrPrivate("^attr-private"); 4465 4466 const size_t NG = mPackageGroups.size(); 4467 for (size_t ig=0; ig<NG; ig++) { 4468 const PackageGroup* group = mPackageGroups[ig]; 4469 4470 if (strzcmp16(package, packageLen, 4471 group->name.string(), group->name.size())) { 4472 if (kDebugTableNoisy) { 4473 printf("Skipping package group: %s\n", String8(group->name).string()); 4474 } 4475 continue; 4476 } 4477 4478 const size_t packageCount = group->packages.size(); 4479 for (size_t pi = 0; pi < packageCount; pi++) { 4480 const char16_t* targetType = type; 4481 size_t targetTypeLen = typeLen; 4482 4483 do { 4484 ssize_t ti = group->packages[pi]->typeStrings.indexOfString( 4485 targetType, targetTypeLen); 4486 if (ti < 0) { 4487 continue; 4488 } 4489 4490 ti += group->packages[pi]->typeIdOffset; 4491 4492 const uint32_t identifier = findEntry(group, ti, name, nameLen, 4493 outTypeSpecFlags); 4494 if (identifier != 0) { 4495 if (fakePublic && outTypeSpecFlags) { 4496 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC; 4497 } 4498 return identifier; 4499 } 4500 } while (strzcmp16(attr.string(), attr.size(), targetType, targetTypeLen) == 0 4501 && (targetType = attrPrivate.string()) 4502 && (targetTypeLen = attrPrivate.size()) 4503 ); 4504 } 4505 break; 4506 } 4507 return 0; 4508 } 4509 4510 uint32_t ResTable::findEntry(const PackageGroup* group, ssize_t typeIndex, const char16_t* name, 4511 size_t nameLen, uint32_t* outTypeSpecFlags) const { 4512 const TypeList& typeList = group->types[typeIndex]; 4513 const size_t typeCount = typeList.size(); 4514 for (size_t i = 0; i < typeCount; i++) { 4515 const Type* t = typeList[i]; 4516 const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen); 4517 if (ei < 0) { 4518 continue; 4519 } 4520 4521 const size_t configCount = t->configs.size(); 4522 for (size_t j = 0; j < configCount; j++) { 4523 const TypeVariant tv(t->configs[j]); 4524 for (TypeVariant::iterator iter = tv.beginEntries(); 4525 iter != tv.endEntries(); 4526 iter++) { 4527 const ResTable_entry* entry = *iter; 4528 if (entry == NULL) { 4529 continue; 4530 } 4531 4532 if (dtohl(entry->key.index) == (size_t) ei) { 4533 uint32_t resId = Res_MAKEID(group->id - 1, typeIndex, iter.index()); 4534 if (outTypeSpecFlags) { 4535 Entry result; 4536 if (getEntry(group, typeIndex, iter.index(), NULL, &result) != NO_ERROR) { 4537 ALOGW("Failed to find spec flags for 0x%08x", resId); 4538 return 0; 4539 } 4540 *outTypeSpecFlags = result.specFlags; 4541 } 4542 return resId; 4543 } 4544 } 4545 } 4546 } 4547 return 0; 4548 } 4549 4550 bool ResTable::expandResourceRef(const char16_t* refStr, size_t refLen, 4551 String16* outPackage, 4552 String16* outType, 4553 String16* outName, 4554 const String16* defType, 4555 const String16* defPackage, 4556 const char** outErrorMsg, 4557 bool* outPublicOnly) 4558 { 4559 const char16_t* packageEnd = NULL; 4560 const char16_t* typeEnd = NULL; 4561 const char16_t* p = refStr; 4562 const char16_t* const end = p + refLen; 4563 while (p < end) { 4564 if (*p == ':') packageEnd = p; 4565 else if (*p == '/') { 4566 typeEnd = p; 4567 break; 4568 } 4569 p++; 4570 } 4571 p = refStr; 4572 if (*p == '@') p++; 4573 4574 if (outPublicOnly != NULL) { 4575 *outPublicOnly = true; 4576 } 4577 if (*p == '*') { 4578 p++; 4579 if (outPublicOnly != NULL) { 4580 *outPublicOnly = false; 4581 } 4582 } 4583 4584 if (packageEnd) { 4585 *outPackage = String16(p, packageEnd-p); 4586 p = packageEnd+1; 4587 } else { 4588 if (!defPackage) { 4589 if (outErrorMsg) { 4590 *outErrorMsg = "No resource package specified"; 4591 } 4592 return false; 4593 } 4594 *outPackage = *defPackage; 4595 } 4596 if (typeEnd) { 4597 *outType = String16(p, typeEnd-p); 4598 p = typeEnd+1; 4599 } else { 4600 if (!defType) { 4601 if (outErrorMsg) { 4602 *outErrorMsg = "No resource type specified"; 4603 } 4604 return false; 4605 } 4606 *outType = *defType; 4607 } 4608 *outName = String16(p, end-p); 4609 if(**outPackage == 0) { 4610 if(outErrorMsg) { 4611 *outErrorMsg = "Resource package cannot be an empty string"; 4612 } 4613 return false; 4614 } 4615 if(**outType == 0) { 4616 if(outErrorMsg) { 4617 *outErrorMsg = "Resource type cannot be an empty string"; 4618 } 4619 return false; 4620 } 4621 if(**outName == 0) { 4622 if(outErrorMsg) { 4623 *outErrorMsg = "Resource id cannot be an empty string"; 4624 } 4625 return false; 4626 } 4627 return true; 4628 } 4629 4630 static uint32_t get_hex(char c, bool* outError) 4631 { 4632 if (c >= '0' && c <= '9') { 4633 return c - '0'; 4634 } else if (c >= 'a' && c <= 'f') { 4635 return c - 'a' + 0xa; 4636 } else if (c >= 'A' && c <= 'F') { 4637 return c - 'A' + 0xa; 4638 } 4639 *outError = true; 4640 return 0; 4641 } 4642 4643 struct unit_entry 4644 { 4645 const char* name; 4646 size_t len; 4647 uint8_t type; 4648 uint32_t unit; 4649 float scale; 4650 }; 4651 4652 static const unit_entry unitNames[] = { 4653 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f }, 4654 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 4655 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 4656 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f }, 4657 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f }, 4658 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f }, 4659 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f }, 4660 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 }, 4661 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 }, 4662 { NULL, 0, 0, 0, 0 } 4663 }; 4664 4665 static bool parse_unit(const char* str, Res_value* outValue, 4666 float* outScale, const char** outEnd) 4667 { 4668 const char* end = str; 4669 while (*end != 0 && !isspace((unsigned char)*end)) { 4670 end++; 4671 } 4672 const size_t len = end-str; 4673 4674 const char* realEnd = end; 4675 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) { 4676 realEnd++; 4677 } 4678 if (*realEnd != 0) { 4679 return false; 4680 } 4681 4682 const unit_entry* cur = unitNames; 4683 while (cur->name) { 4684 if (len == cur->len && strncmp(cur->name, str, len) == 0) { 4685 outValue->dataType = cur->type; 4686 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT; 4687 *outScale = cur->scale; 4688 *outEnd = end; 4689 //printf("Found unit %s for %s\n", cur->name, str); 4690 return true; 4691 } 4692 cur++; 4693 } 4694 4695 return false; 4696 } 4697 4698 bool U16StringToInt(const char16_t* s, size_t len, Res_value* outValue) 4699 { 4700 while (len > 0 && isspace16(*s)) { 4701 s++; 4702 len--; 4703 } 4704 4705 if (len <= 0) { 4706 return false; 4707 } 4708 4709 size_t i = 0; 4710 int64_t val = 0; 4711 bool neg = false; 4712 4713 if (*s == '-') { 4714 neg = true; 4715 i++; 4716 } 4717 4718 if (s[i] < '0' || s[i] > '9') { 4719 return false; 4720 } 4721 4722 static_assert(std::is_same<uint32_t, Res_value::data_type>::value, 4723 "Res_value::data_type has changed. The range checks in this " 4724 "function are no longer correct."); 4725 4726 // Decimal or hex? 4727 bool isHex; 4728 if (len > 1 && s[i] == '0' && s[i+1] == 'x') { 4729 isHex = true; 4730 i += 2; 4731 4732 if (neg) { 4733 return false; 4734 } 4735 4736 if (i == len) { 4737 // Just u"0x" 4738 return false; 4739 } 4740 4741 bool error = false; 4742 while (i < len && !error) { 4743 val = (val*16) + get_hex(s[i], &error); 4744 i++; 4745 4746 if (val > std::numeric_limits<uint32_t>::max()) { 4747 return false; 4748 } 4749 } 4750 if (error) { 4751 return false; 4752 } 4753 } else { 4754 isHex = false; 4755 while (i < len) { 4756 if (s[i] < '0' || s[i] > '9') { 4757 return false; 4758 } 4759 val = (val*10) + s[i]-'0'; 4760 i++; 4761 4762 if ((neg && -val < std::numeric_limits<int32_t>::min()) || 4763 (!neg && val > std::numeric_limits<int32_t>::max())) { 4764 return false; 4765 } 4766 } 4767 } 4768 4769 if (neg) val = -val; 4770 4771 while (i < len && isspace16(s[i])) { 4772 i++; 4773 } 4774 4775 if (i != len) { 4776 return false; 4777 } 4778 4779 if (outValue) { 4780 outValue->dataType = 4781 isHex ? outValue->TYPE_INT_HEX : outValue->TYPE_INT_DEC; 4782 outValue->data = static_cast<Res_value::data_type>(val); 4783 } 4784 return true; 4785 } 4786 4787 bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue) 4788 { 4789 return U16StringToInt(s, len, outValue); 4790 } 4791 4792 bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue) 4793 { 4794 while (len > 0 && isspace16(*s)) { 4795 s++; 4796 len--; 4797 } 4798 4799 if (len <= 0) { 4800 return false; 4801 } 4802 4803 char buf[128]; 4804 int i=0; 4805 while (len > 0 && *s != 0 && i < 126) { 4806 if (*s > 255) { 4807 return false; 4808 } 4809 buf[i++] = *s++; 4810 len--; 4811 } 4812 4813 if (len > 0) { 4814 return false; 4815 } 4816 if ((buf[0] < '0' || buf[0] > '9') && buf[0] != '.' && buf[0] != '-' && buf[0] != '+') { 4817 return false; 4818 } 4819 4820 buf[i] = 0; 4821 const char* end; 4822 float f = strtof(buf, (char**)&end); 4823 4824 if (*end != 0 && !isspace((unsigned char)*end)) { 4825 // Might be a unit... 4826 float scale; 4827 if (parse_unit(end, outValue, &scale, &end)) { 4828 f *= scale; 4829 const bool neg = f < 0; 4830 if (neg) f = -f; 4831 uint64_t bits = (uint64_t)(f*(1<<23)+.5f); 4832 uint32_t radix; 4833 uint32_t shift; 4834 if ((bits&0x7fffff) == 0) { 4835 // Always use 23p0 if there is no fraction, just to make 4836 // things easier to read. 4837 radix = Res_value::COMPLEX_RADIX_23p0; 4838 shift = 23; 4839 } else if ((bits&0xffffffffff800000LL) == 0) { 4840 // Magnitude is zero -- can fit in 0 bits of precision. 4841 radix = Res_value::COMPLEX_RADIX_0p23; 4842 shift = 0; 4843 } else if ((bits&0xffffffff80000000LL) == 0) { 4844 // Magnitude can fit in 8 bits of precision. 4845 radix = Res_value::COMPLEX_RADIX_8p15; 4846 shift = 8; 4847 } else if ((bits&0xffffff8000000000LL) == 0) { 4848 // Magnitude can fit in 16 bits of precision. 4849 radix = Res_value::COMPLEX_RADIX_16p7; 4850 shift = 16; 4851 } else { 4852 // Magnitude needs entire range, so no fractional part. 4853 radix = Res_value::COMPLEX_RADIX_23p0; 4854 shift = 23; 4855 } 4856 int32_t mantissa = (int32_t)( 4857 (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK); 4858 if (neg) { 4859 mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK; 4860 } 4861 outValue->data |= 4862 (radix<<Res_value::COMPLEX_RADIX_SHIFT) 4863 | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT); 4864 //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n", 4865 // f * (neg ? -1 : 1), bits, f*(1<<23), 4866 // radix, shift, outValue->data); 4867 return true; 4868 } 4869 return false; 4870 } 4871 4872 while (*end != 0 && isspace((unsigned char)*end)) { 4873 end++; 4874 } 4875 4876 if (*end == 0) { 4877 if (outValue) { 4878 outValue->dataType = outValue->TYPE_FLOAT; 4879 *(float*)(&outValue->data) = f; 4880 return true; 4881 } 4882 } 4883 4884 return false; 4885 } 4886 4887 bool ResTable::stringToValue(Res_value* outValue, String16* outString, 4888 const char16_t* s, size_t len, 4889 bool preserveSpaces, bool coerceType, 4890 uint32_t attrID, 4891 const String16* defType, 4892 const String16* defPackage, 4893 Accessor* accessor, 4894 void* accessorCookie, 4895 uint32_t attrType, 4896 bool enforcePrivate) const 4897 { 4898 bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting(); 4899 const char* errorMsg = NULL; 4900 4901 outValue->size = sizeof(Res_value); 4902 outValue->res0 = 0; 4903 4904 // First strip leading/trailing whitespace. Do this before handling 4905 // escapes, so they can be used to force whitespace into the string. 4906 if (!preserveSpaces) { 4907 while (len > 0 && isspace16(*s)) { 4908 s++; 4909 len--; 4910 } 4911 while (len > 0 && isspace16(s[len-1])) { 4912 len--; 4913 } 4914 // If the string ends with '\', then we keep the space after it. 4915 if (len > 0 && s[len-1] == '\\' && s[len] != 0) { 4916 len++; 4917 } 4918 } 4919 4920 //printf("Value for: %s\n", String8(s, len).string()); 4921 4922 uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED; 4923 uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff; 4924 bool fromAccessor = false; 4925 if (attrID != 0 && !Res_INTERNALID(attrID)) { 4926 const ssize_t p = getResourcePackageIndex(attrID); 4927 const bag_entry* bag; 4928 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 4929 //printf("For attr 0x%08x got bag of %d\n", attrID, cnt); 4930 if (cnt >= 0) { 4931 while (cnt > 0) { 4932 //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data); 4933 switch (bag->map.name.ident) { 4934 case ResTable_map::ATTR_TYPE: 4935 attrType = bag->map.value.data; 4936 break; 4937 case ResTable_map::ATTR_MIN: 4938 attrMin = bag->map.value.data; 4939 break; 4940 case ResTable_map::ATTR_MAX: 4941 attrMax = bag->map.value.data; 4942 break; 4943 case ResTable_map::ATTR_L10N: 4944 l10nReq = bag->map.value.data; 4945 break; 4946 } 4947 bag++; 4948 cnt--; 4949 } 4950 unlockBag(bag); 4951 } else if (accessor && accessor->getAttributeType(attrID, &attrType)) { 4952 fromAccessor = true; 4953 if (attrType == ResTable_map::TYPE_ENUM 4954 || attrType == ResTable_map::TYPE_FLAGS 4955 || attrType == ResTable_map::TYPE_INTEGER) { 4956 accessor->getAttributeMin(attrID, &attrMin); 4957 accessor->getAttributeMax(attrID, &attrMax); 4958 } 4959 if (localizationSetting) { 4960 l10nReq = accessor->getAttributeL10N(attrID); 4961 } 4962 } 4963 } 4964 4965 const bool canStringCoerce = 4966 coerceType && (attrType&ResTable_map::TYPE_STRING) != 0; 4967 4968 if (*s == '@') { 4969 outValue->dataType = outValue->TYPE_REFERENCE; 4970 4971 // Note: we don't check attrType here because the reference can 4972 // be to any other type; we just need to count on the client making 4973 // sure the referenced type is correct. 4974 4975 //printf("Looking up ref: %s\n", String8(s, len).string()); 4976 4977 // It's a reference! 4978 if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') { 4979 // Special case @null as undefined. This will be converted by 4980 // AssetManager to TYPE_NULL with data DATA_NULL_UNDEFINED. 4981 outValue->data = 0; 4982 return true; 4983 } else if (len == 6 && s[1]=='e' && s[2]=='m' && s[3]=='p' && s[4]=='t' && s[5]=='y') { 4984 // Special case @empty as explicitly defined empty value. 4985 outValue->dataType = Res_value::TYPE_NULL; 4986 outValue->data = Res_value::DATA_NULL_EMPTY; 4987 return true; 4988 } else { 4989 bool createIfNotFound = false; 4990 const char16_t* resourceRefName; 4991 int resourceNameLen; 4992 if (len > 2 && s[1] == '+') { 4993 createIfNotFound = true; 4994 resourceRefName = s + 2; 4995 resourceNameLen = len - 2; 4996 } else if (len > 2 && s[1] == '*') { 4997 enforcePrivate = false; 4998 resourceRefName = s + 2; 4999 resourceNameLen = len - 2; 5000 } else { 5001 createIfNotFound = false; 5002 resourceRefName = s + 1; 5003 resourceNameLen = len - 1; 5004 } 5005 String16 package, type, name; 5006 if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name, 5007 defType, defPackage, &errorMsg)) { 5008 if (accessor != NULL) { 5009 accessor->reportError(accessorCookie, errorMsg); 5010 } 5011 return false; 5012 } 5013 5014 uint32_t specFlags = 0; 5015 uint32_t rid = identifierForName(name.string(), name.size(), type.string(), 5016 type.size(), package.string(), package.size(), &specFlags); 5017 if (rid != 0) { 5018 if (enforcePrivate) { 5019 if (accessor == NULL || accessor->getAssetsPackage() != package) { 5020 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) { 5021 if (accessor != NULL) { 5022 accessor->reportError(accessorCookie, "Resource is not public."); 5023 } 5024 return false; 5025 } 5026 } 5027 } 5028 5029 if (accessor) { 5030 rid = Res_MAKEID( 5031 accessor->getRemappedPackage(Res_GETPACKAGE(rid)), 5032 Res_GETTYPE(rid), Res_GETENTRY(rid)); 5033 if (kDebugTableNoisy) { 5034 ALOGI("Incl %s:%s/%s: 0x%08x\n", 5035 String8(package).string(), String8(type).string(), 5036 String8(name).string(), rid); 5037 } 5038 } 5039 5040 uint32_t packageId = Res_GETPACKAGE(rid) + 1; 5041 if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) { 5042 outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE; 5043 } 5044 outValue->data = rid; 5045 return true; 5046 } 5047 5048 if (accessor) { 5049 uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name, 5050 createIfNotFound); 5051 if (rid != 0) { 5052 if (kDebugTableNoisy) { 5053 ALOGI("Pckg %s:%s/%s: 0x%08x\n", 5054 String8(package).string(), String8(type).string(), 5055 String8(name).string(), rid); 5056 } 5057 uint32_t packageId = Res_GETPACKAGE(rid) + 1; 5058 if (packageId == 0x00) { 5059 outValue->data = rid; 5060 outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE; 5061 return true; 5062 } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) { 5063 // We accept packageId's generated as 0x01 in order to support 5064 // building the android system resources 5065 outValue->data = rid; 5066 return true; 5067 } 5068 } 5069 } 5070 } 5071 5072 if (accessor != NULL) { 5073 accessor->reportError(accessorCookie, "No resource found that matches the given name"); 5074 } 5075 return false; 5076 } 5077 5078 // if we got to here, and localization is required and it's not a reference, 5079 // complain and bail. 5080 if (l10nReq == ResTable_map::L10N_SUGGESTED) { 5081 if (localizationSetting) { 5082 if (accessor != NULL) { 5083 accessor->reportError(accessorCookie, "This attribute must be localized."); 5084 } 5085 } 5086 } 5087 5088 if (*s == '#') { 5089 // It's a color! Convert to an integer of the form 0xaarrggbb. 5090 uint32_t color = 0; 5091 bool error = false; 5092 if (len == 4) { 5093 outValue->dataType = outValue->TYPE_INT_COLOR_RGB4; 5094 color |= 0xFF000000; 5095 color |= get_hex(s[1], &error) << 20; 5096 color |= get_hex(s[1], &error) << 16; 5097 color |= get_hex(s[2], &error) << 12; 5098 color |= get_hex(s[2], &error) << 8; 5099 color |= get_hex(s[3], &error) << 4; 5100 color |= get_hex(s[3], &error); 5101 } else if (len == 5) { 5102 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4; 5103 color |= get_hex(s[1], &error) << 28; 5104 color |= get_hex(s[1], &error) << 24; 5105 color |= get_hex(s[2], &error) << 20; 5106 color |= get_hex(s[2], &error) << 16; 5107 color |= get_hex(s[3], &error) << 12; 5108 color |= get_hex(s[3], &error) << 8; 5109 color |= get_hex(s[4], &error) << 4; 5110 color |= get_hex(s[4], &error); 5111 } else if (len == 7) { 5112 outValue->dataType = outValue->TYPE_INT_COLOR_RGB8; 5113 color |= 0xFF000000; 5114 color |= get_hex(s[1], &error) << 20; 5115 color |= get_hex(s[2], &error) << 16; 5116 color |= get_hex(s[3], &error) << 12; 5117 color |= get_hex(s[4], &error) << 8; 5118 color |= get_hex(s[5], &error) << 4; 5119 color |= get_hex(s[6], &error); 5120 } else if (len == 9) { 5121 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8; 5122 color |= get_hex(s[1], &error) << 28; 5123 color |= get_hex(s[2], &error) << 24; 5124 color |= get_hex(s[3], &error) << 20; 5125 color |= get_hex(s[4], &error) << 16; 5126 color |= get_hex(s[5], &error) << 12; 5127 color |= get_hex(s[6], &error) << 8; 5128 color |= get_hex(s[7], &error) << 4; 5129 color |= get_hex(s[8], &error); 5130 } else { 5131 error = true; 5132 } 5133 if (!error) { 5134 if ((attrType&ResTable_map::TYPE_COLOR) == 0) { 5135 if (!canStringCoerce) { 5136 if (accessor != NULL) { 5137 accessor->reportError(accessorCookie, 5138 "Color types not allowed"); 5139 } 5140 return false; 5141 } 5142 } else { 5143 outValue->data = color; 5144 //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color); 5145 return true; 5146 } 5147 } else { 5148 if ((attrType&ResTable_map::TYPE_COLOR) != 0) { 5149 if (accessor != NULL) { 5150 accessor->reportError(accessorCookie, "Color value not valid --" 5151 " must be #rgb, #argb, #rrggbb, or #aarrggbb"); 5152 } 5153 #if 0 5154 fprintf(stderr, "%s: Color ID %s value %s is not valid\n", 5155 "Resource File", //(const char*)in->getPrintableSource(), 5156 String8(*curTag).string(), 5157 String8(s, len).string()); 5158 #endif 5159 return false; 5160 } 5161 } 5162 } 5163 5164 if (*s == '?') { 5165 outValue->dataType = outValue->TYPE_ATTRIBUTE; 5166 5167 // Note: we don't check attrType here because the reference can 5168 // be to any other type; we just need to count on the client making 5169 // sure the referenced type is correct. 5170 5171 //printf("Looking up attr: %s\n", String8(s, len).string()); 5172 5173 static const String16 attr16("attr"); 5174 String16 package, type, name; 5175 if (!expandResourceRef(s+1, len-1, &package, &type, &name, 5176 &attr16, defPackage, &errorMsg)) { 5177 if (accessor != NULL) { 5178 accessor->reportError(accessorCookie, errorMsg); 5179 } 5180 return false; 5181 } 5182 5183 //printf("Pkg: %s, Type: %s, Name: %s\n", 5184 // String8(package).string(), String8(type).string(), 5185 // String8(name).string()); 5186 uint32_t specFlags = 0; 5187 uint32_t rid = 5188 identifierForName(name.string(), name.size(), 5189 type.string(), type.size(), 5190 package.string(), package.size(), &specFlags); 5191 if (rid != 0) { 5192 if (enforcePrivate) { 5193 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) { 5194 if (accessor != NULL) { 5195 accessor->reportError(accessorCookie, "Attribute is not public."); 5196 } 5197 return false; 5198 } 5199 } 5200 if (!accessor) { 5201 outValue->data = rid; 5202 return true; 5203 } 5204 rid = Res_MAKEID( 5205 accessor->getRemappedPackage(Res_GETPACKAGE(rid)), 5206 Res_GETTYPE(rid), Res_GETENTRY(rid)); 5207 //printf("Incl %s:%s/%s: 0x%08x\n", 5208 // String8(package).string(), String8(type).string(), 5209 // String8(name).string(), rid); 5210 outValue->data = rid; 5211 return true; 5212 } 5213 5214 if (accessor) { 5215 uint32_t rid = accessor->getCustomResource(package, type, name); 5216 if (rid != 0) { 5217 //printf("Mine %s:%s/%s: 0x%08x\n", 5218 // String8(package).string(), String8(type).string(), 5219 // String8(name).string(), rid); 5220 outValue->data = rid; 5221 return true; 5222 } 5223 } 5224 5225 if (accessor != NULL) { 5226 accessor->reportError(accessorCookie, "No resource found that matches the given name"); 5227 } 5228 return false; 5229 } 5230 5231 if (stringToInt(s, len, outValue)) { 5232 if ((attrType&ResTable_map::TYPE_INTEGER) == 0) { 5233 // If this type does not allow integers, but does allow floats, 5234 // fall through on this error case because the float type should 5235 // be able to accept any integer value. 5236 if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) { 5237 if (accessor != NULL) { 5238 accessor->reportError(accessorCookie, "Integer types not allowed"); 5239 } 5240 return false; 5241 } 5242 } else { 5243 if (((int32_t)outValue->data) < ((int32_t)attrMin) 5244 || ((int32_t)outValue->data) > ((int32_t)attrMax)) { 5245 if (accessor != NULL) { 5246 accessor->reportError(accessorCookie, "Integer value out of range"); 5247 } 5248 return false; 5249 } 5250 return true; 5251 } 5252 } 5253 5254 if (stringToFloat(s, len, outValue)) { 5255 if (outValue->dataType == Res_value::TYPE_DIMENSION) { 5256 if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) { 5257 return true; 5258 } 5259 if (!canStringCoerce) { 5260 if (accessor != NULL) { 5261 accessor->reportError(accessorCookie, "Dimension types not allowed"); 5262 } 5263 return false; 5264 } 5265 } else if (outValue->dataType == Res_value::TYPE_FRACTION) { 5266 if ((attrType&ResTable_map::TYPE_FRACTION) != 0) { 5267 return true; 5268 } 5269 if (!canStringCoerce) { 5270 if (accessor != NULL) { 5271 accessor->reportError(accessorCookie, "Fraction types not allowed"); 5272 } 5273 return false; 5274 } 5275 } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) { 5276 if (!canStringCoerce) { 5277 if (accessor != NULL) { 5278 accessor->reportError(accessorCookie, "Float types not allowed"); 5279 } 5280 return false; 5281 } 5282 } else { 5283 return true; 5284 } 5285 } 5286 5287 if (len == 4) { 5288 if ((s[0] == 't' || s[0] == 'T') && 5289 (s[1] == 'r' || s[1] == 'R') && 5290 (s[2] == 'u' || s[2] == 'U') && 5291 (s[3] == 'e' || s[3] == 'E')) { 5292 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) { 5293 if (!canStringCoerce) { 5294 if (accessor != NULL) { 5295 accessor->reportError(accessorCookie, "Boolean types not allowed"); 5296 } 5297 return false; 5298 } 5299 } else { 5300 outValue->dataType = outValue->TYPE_INT_BOOLEAN; 5301 outValue->data = (uint32_t)-1; 5302 return true; 5303 } 5304 } 5305 } 5306 5307 if (len == 5) { 5308 if ((s[0] == 'f' || s[0] == 'F') && 5309 (s[1] == 'a' || s[1] == 'A') && 5310 (s[2] == 'l' || s[2] == 'L') && 5311 (s[3] == 's' || s[3] == 'S') && 5312 (s[4] == 'e' || s[4] == 'E')) { 5313 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) { 5314 if (!canStringCoerce) { 5315 if (accessor != NULL) { 5316 accessor->reportError(accessorCookie, "Boolean types not allowed"); 5317 } 5318 return false; 5319 } 5320 } else { 5321 outValue->dataType = outValue->TYPE_INT_BOOLEAN; 5322 outValue->data = 0; 5323 return true; 5324 } 5325 } 5326 } 5327 5328 if ((attrType&ResTable_map::TYPE_ENUM) != 0) { 5329 const ssize_t p = getResourcePackageIndex(attrID); 5330 const bag_entry* bag; 5331 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 5332 //printf("Got %d for enum\n", cnt); 5333 if (cnt >= 0) { 5334 resource_name rname; 5335 while (cnt > 0) { 5336 if (!Res_INTERNALID(bag->map.name.ident)) { 5337 //printf("Trying attr #%08x\n", bag->map.name.ident); 5338 if (getResourceName(bag->map.name.ident, false, &rname)) { 5339 #if 0 5340 printf("Matching %s against %s (0x%08x)\n", 5341 String8(s, len).string(), 5342 String8(rname.name, rname.nameLen).string(), 5343 bag->map.name.ident); 5344 #endif 5345 if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) { 5346 outValue->dataType = bag->map.value.dataType; 5347 outValue->data = bag->map.value.data; 5348 unlockBag(bag); 5349 return true; 5350 } 5351 } 5352 5353 } 5354 bag++; 5355 cnt--; 5356 } 5357 unlockBag(bag); 5358 } 5359 5360 if (fromAccessor) { 5361 if (accessor->getAttributeEnum(attrID, s, len, outValue)) { 5362 return true; 5363 } 5364 } 5365 } 5366 5367 if ((attrType&ResTable_map::TYPE_FLAGS) != 0) { 5368 const ssize_t p = getResourcePackageIndex(attrID); 5369 const bag_entry* bag; 5370 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 5371 //printf("Got %d for flags\n", cnt); 5372 if (cnt >= 0) { 5373 bool failed = false; 5374 resource_name rname; 5375 outValue->dataType = Res_value::TYPE_INT_HEX; 5376 outValue->data = 0; 5377 const char16_t* end = s + len; 5378 const char16_t* pos = s; 5379 while (pos < end && !failed) { 5380 const char16_t* start = pos; 5381 pos++; 5382 while (pos < end && *pos != '|') { 5383 pos++; 5384 } 5385 //printf("Looking for: %s\n", String8(start, pos-start).string()); 5386 const bag_entry* bagi = bag; 5387 ssize_t i; 5388 for (i=0; i<cnt; i++, bagi++) { 5389 if (!Res_INTERNALID(bagi->map.name.ident)) { 5390 //printf("Trying attr #%08x\n", bagi->map.name.ident); 5391 if (getResourceName(bagi->map.name.ident, false, &rname)) { 5392 #if 0 5393 printf("Matching %s against %s (0x%08x)\n", 5394 String8(start,pos-start).string(), 5395 String8(rname.name, rname.nameLen).string(), 5396 bagi->map.name.ident); 5397 #endif 5398 if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) { 5399 outValue->data |= bagi->map.value.data; 5400 break; 5401 } 5402 } 5403 } 5404 } 5405 if (i >= cnt) { 5406 // Didn't find this flag identifier. 5407 failed = true; 5408 } 5409 if (pos < end) { 5410 pos++; 5411 } 5412 } 5413 unlockBag(bag); 5414 if (!failed) { 5415 //printf("Final flag value: 0x%lx\n", outValue->data); 5416 return true; 5417 } 5418 } 5419 5420 5421 if (fromAccessor) { 5422 if (accessor->getAttributeFlags(attrID, s, len, outValue)) { 5423 //printf("Final flag value: 0x%lx\n", outValue->data); 5424 return true; 5425 } 5426 } 5427 } 5428 5429 if ((attrType&ResTable_map::TYPE_STRING) == 0) { 5430 if (accessor != NULL) { 5431 accessor->reportError(accessorCookie, "String types not allowed"); 5432 } 5433 return false; 5434 } 5435 5436 // Generic string handling... 5437 outValue->dataType = outValue->TYPE_STRING; 5438 if (outString) { 5439 bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg); 5440 if (accessor != NULL) { 5441 accessor->reportError(accessorCookie, errorMsg); 5442 } 5443 return failed; 5444 } 5445 5446 return true; 5447 } 5448 5449 bool ResTable::collectString(String16* outString, 5450 const char16_t* s, size_t len, 5451 bool preserveSpaces, 5452 const char** outErrorMsg, 5453 bool append) 5454 { 5455 String16 tmp; 5456 5457 char quoted = 0; 5458 const char16_t* p = s; 5459 while (p < (s+len)) { 5460 while (p < (s+len)) { 5461 const char16_t c = *p; 5462 if (c == '\\') { 5463 break; 5464 } 5465 if (!preserveSpaces) { 5466 if (quoted == 0 && isspace16(c) 5467 && (c != ' ' || isspace16(*(p+1)))) { 5468 break; 5469 } 5470 if (c == '"' && (quoted == 0 || quoted == '"')) { 5471 break; 5472 } 5473 if (c == '\'' && (quoted == 0 || quoted == '\'')) { 5474 /* 5475 * In practice, when people write ' instead of \' 5476 * in a string, they are doing it by accident 5477 * instead of really meaning to use ' as a quoting 5478 * character. Warn them so they don't lose it. 5479 */ 5480 if (outErrorMsg) { 5481 *outErrorMsg = "Apostrophe not preceded by \\"; 5482 } 5483 return false; 5484 } 5485 } 5486 p++; 5487 } 5488 if (p < (s+len)) { 5489 if (p > s) { 5490 tmp.append(String16(s, p-s)); 5491 } 5492 if (!preserveSpaces && (*p == '"' || *p == '\'')) { 5493 if (quoted == 0) { 5494 quoted = *p; 5495 } else { 5496 quoted = 0; 5497 } 5498 p++; 5499 } else if (!preserveSpaces && isspace16(*p)) { 5500 // Space outside of a quote -- consume all spaces and 5501 // leave a single plain space char. 5502 tmp.append(String16(" ")); 5503 p++; 5504 while (p < (s+len) && isspace16(*p)) { 5505 p++; 5506 } 5507 } else if (*p == '\\') { 5508 p++; 5509 if (p < (s+len)) { 5510 switch (*p) { 5511 case 't': 5512 tmp.append(String16("\t")); 5513 break; 5514 case 'n': 5515 tmp.append(String16("\n")); 5516 break; 5517 case '#': 5518 tmp.append(String16("#")); 5519 break; 5520 case '@': 5521 tmp.append(String16("@")); 5522 break; 5523 case '?': 5524 tmp.append(String16("?")); 5525 break; 5526 case '"': 5527 tmp.append(String16("\"")); 5528 break; 5529 case '\'': 5530 tmp.append(String16("'")); 5531 break; 5532 case '\\': 5533 tmp.append(String16("\\")); 5534 break; 5535 case 'u': 5536 { 5537 char16_t chr = 0; 5538 int i = 0; 5539 while (i < 4 && p[1] != 0) { 5540 p++; 5541 i++; 5542 int c; 5543 if (*p >= '0' && *p <= '9') { 5544 c = *p - '0'; 5545 } else if (*p >= 'a' && *p <= 'f') { 5546 c = *p - 'a' + 10; 5547 } else if (*p >= 'A' && *p <= 'F') { 5548 c = *p - 'A' + 10; 5549 } else { 5550 if (outErrorMsg) { 5551 *outErrorMsg = "Bad character in \\u unicode escape sequence"; 5552 } 5553 return false; 5554 } 5555 chr = (chr<<4) | c; 5556 } 5557 tmp.append(String16(&chr, 1)); 5558 } break; 5559 default: 5560 // ignore unknown escape chars. 5561 break; 5562 } 5563 p++; 5564 } 5565 } 5566 len -= (p-s); 5567 s = p; 5568 } 5569 } 5570 5571 if (tmp.size() != 0) { 5572 if (len > 0) { 5573 tmp.append(String16(s, len)); 5574 } 5575 if (append) { 5576 outString->append(tmp); 5577 } else { 5578 outString->setTo(tmp); 5579 } 5580 } else { 5581 if (append) { 5582 outString->append(String16(s, len)); 5583 } else { 5584 outString->setTo(s, len); 5585 } 5586 } 5587 5588 return true; 5589 } 5590 5591 size_t ResTable::getBasePackageCount() const 5592 { 5593 if (mError != NO_ERROR) { 5594 return 0; 5595 } 5596 return mPackageGroups.size(); 5597 } 5598 5599 const String16 ResTable::getBasePackageName(size_t idx) const 5600 { 5601 if (mError != NO_ERROR) { 5602 return String16(); 5603 } 5604 LOG_FATAL_IF(idx >= mPackageGroups.size(), 5605 "Requested package index %d past package count %d", 5606 (int)idx, (int)mPackageGroups.size()); 5607 return mPackageGroups[idx]->name; 5608 } 5609 5610 uint32_t ResTable::getBasePackageId(size_t idx) const 5611 { 5612 if (mError != NO_ERROR) { 5613 return 0; 5614 } 5615 LOG_FATAL_IF(idx >= mPackageGroups.size(), 5616 "Requested package index %d past package count %d", 5617 (int)idx, (int)mPackageGroups.size()); 5618 return mPackageGroups[idx]->id; 5619 } 5620 5621 uint32_t ResTable::getLastTypeIdForPackage(size_t idx) const 5622 { 5623 if (mError != NO_ERROR) { 5624 return 0; 5625 } 5626 LOG_FATAL_IF(idx >= mPackageGroups.size(), 5627 "Requested package index %d past package count %d", 5628 (int)idx, (int)mPackageGroups.size()); 5629 const PackageGroup* const group = mPackageGroups[idx]; 5630 return group->largestTypeId; 5631 } 5632 5633 size_t ResTable::getTableCount() const 5634 { 5635 return mHeaders.size(); 5636 } 5637 5638 const ResStringPool* ResTable::getTableStringBlock(size_t index) const 5639 { 5640 return &mHeaders[index]->values; 5641 } 5642 5643 int32_t ResTable::getTableCookie(size_t index) const 5644 { 5645 return mHeaders[index]->cookie; 5646 } 5647 5648 const DynamicRefTable* ResTable::getDynamicRefTableForCookie(int32_t cookie) const 5649 { 5650 const size_t N = mPackageGroups.size(); 5651 for (size_t i = 0; i < N; i++) { 5652 const PackageGroup* pg = mPackageGroups[i]; 5653 size_t M = pg->packages.size(); 5654 for (size_t j = 0; j < M; j++) { 5655 if (pg->packages[j]->header->cookie == cookie) { 5656 return &pg->dynamicRefTable; 5657 } 5658 } 5659 } 5660 return NULL; 5661 } 5662 5663 void ResTable::getConfigurations(Vector<ResTable_config>* configs, bool ignoreMipmap) const 5664 { 5665 const size_t packageCount = mPackageGroups.size(); 5666 for (size_t i = 0; i < packageCount; i++) { 5667 const PackageGroup* packageGroup = mPackageGroups[i]; 5668 const size_t typeCount = packageGroup->types.size(); 5669 for (size_t j = 0; j < typeCount; j++) { 5670 const TypeList& typeList = packageGroup->types[j]; 5671 const size_t numTypes = typeList.size(); 5672 for (size_t k = 0; k < numTypes; k++) { 5673 const Type* type = typeList[k]; 5674 const ResStringPool& typeStrings = type->package->typeStrings; 5675 if (ignoreMipmap && typeStrings.string8ObjectAt( 5676 type->typeSpec->id - 1) == "mipmap") { 5677 continue; 5678 } 5679 5680 const size_t numConfigs = type->configs.size(); 5681 for (size_t m = 0; m < numConfigs; m++) { 5682 const ResTable_type* config = type->configs[m]; 5683 ResTable_config cfg; 5684 memset(&cfg, 0, sizeof(ResTable_config)); 5685 cfg.copyFromDtoH(config->config); 5686 // only insert unique 5687 const size_t N = configs->size(); 5688 size_t n; 5689 for (n = 0; n < N; n++) { 5690 if (0 == (*configs)[n].compare(cfg)) { 5691 break; 5692 } 5693 } 5694 // if we didn't find it 5695 if (n == N) { 5696 configs->add(cfg); 5697 } 5698 } 5699 } 5700 } 5701 } 5702 } 5703 5704 void ResTable::getLocales(Vector<String8>* locales) const 5705 { 5706 Vector<ResTable_config> configs; 5707 ALOGV("calling getConfigurations"); 5708 getConfigurations(&configs); 5709 ALOGV("called getConfigurations size=%d", (int)configs.size()); 5710 const size_t I = configs.size(); 5711 5712 char locale[RESTABLE_MAX_LOCALE_LEN]; 5713 for (size_t i=0; i<I; i++) { 5714 configs[i].getBcp47Locale(locale); 5715 const size_t J = locales->size(); 5716 size_t j; 5717 for (j=0; j<J; j++) { 5718 if (0 == strcmp(locale, (*locales)[j].string())) { 5719 break; 5720 } 5721 } 5722 if (j == J) { 5723 locales->add(String8(locale)); 5724 } 5725 } 5726 } 5727 5728 StringPoolRef::StringPoolRef(const ResStringPool* pool, uint32_t index) 5729 : mPool(pool), mIndex(index) {} 5730 5731 StringPoolRef::StringPoolRef() 5732 : mPool(NULL), mIndex(0) {} 5733 5734 const char* StringPoolRef::string8(size_t* outLen) const { 5735 if (mPool != NULL) { 5736 return mPool->string8At(mIndex, outLen); 5737 } 5738 if (outLen != NULL) { 5739 *outLen = 0; 5740 } 5741 return NULL; 5742 } 5743 5744 const char16_t* StringPoolRef::string16(size_t* outLen) const { 5745 if (mPool != NULL) { 5746 return mPool->stringAt(mIndex, outLen); 5747 } 5748 if (outLen != NULL) { 5749 *outLen = 0; 5750 } 5751 return NULL; 5752 } 5753 5754 bool ResTable::getResourceFlags(uint32_t resID, uint32_t* outFlags) const { 5755 if (mError != NO_ERROR) { 5756 return false; 5757 } 5758 5759 const ssize_t p = getResourcePackageIndex(resID); 5760 const int t = Res_GETTYPE(resID); 5761 const int e = Res_GETENTRY(resID); 5762 5763 if (p < 0) { 5764 if (Res_GETPACKAGE(resID)+1 == 0) { 5765 ALOGW("No package identifier when getting flags for resource number 0x%08x", resID); 5766 } else { 5767 ALOGW("No known package when getting flags for resource number 0x%08x", resID); 5768 } 5769 return false; 5770 } 5771 if (t < 0) { 5772 ALOGW("No type identifier when getting flags for resource number 0x%08x", resID); 5773 return false; 5774 } 5775 5776 const PackageGroup* const grp = mPackageGroups[p]; 5777 if (grp == NULL) { 5778 ALOGW("Bad identifier when getting flags for resource number 0x%08x", resID); 5779 return false; 5780 } 5781 5782 Entry entry; 5783 status_t err = getEntry(grp, t, e, NULL, &entry); 5784 if (err != NO_ERROR) { 5785 return false; 5786 } 5787 5788 *outFlags = entry.specFlags; 5789 return true; 5790 } 5791 5792 status_t ResTable::getEntry( 5793 const PackageGroup* packageGroup, int typeIndex, int entryIndex, 5794 const ResTable_config* config, 5795 Entry* outEntry) const 5796 { 5797 const TypeList& typeList = packageGroup->types[typeIndex]; 5798 if (typeList.isEmpty()) { 5799 ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex); 5800 return BAD_TYPE; 5801 } 5802 5803 const ResTable_type* bestType = NULL; 5804 uint32_t bestOffset = ResTable_type::NO_ENTRY; 5805 const Package* bestPackage = NULL; 5806 uint32_t specFlags = 0; 5807 uint8_t actualTypeIndex = typeIndex; 5808 ResTable_config bestConfig; 5809 memset(&bestConfig, 0, sizeof(bestConfig)); 5810 5811 // Iterate over the Types of each package. 5812 const size_t typeCount = typeList.size(); 5813 for (size_t i = 0; i < typeCount; i++) { 5814 const Type* const typeSpec = typeList[i]; 5815 5816 int realEntryIndex = entryIndex; 5817 int realTypeIndex = typeIndex; 5818 bool currentTypeIsOverlay = false; 5819 5820 // Runtime overlay packages provide a mapping of app resource 5821 // ID to package resource ID. 5822 if (typeSpec->idmapEntries.hasEntries()) { 5823 uint16_t overlayEntryIndex; 5824 if (typeSpec->idmapEntries.lookup(entryIndex, &overlayEntryIndex) != NO_ERROR) { 5825 // No such mapping exists 5826 continue; 5827 } 5828 realEntryIndex = overlayEntryIndex; 5829 realTypeIndex = typeSpec->idmapEntries.overlayTypeId() - 1; 5830 currentTypeIsOverlay = true; 5831 } 5832 5833 if (static_cast<size_t>(realEntryIndex) >= typeSpec->entryCount) { 5834 ALOGW("For resource 0x%08x, entry index(%d) is beyond type entryCount(%d)", 5835 Res_MAKEID(packageGroup->id - 1, typeIndex, entryIndex), 5836 entryIndex, static_cast<int>(typeSpec->entryCount)); 5837 // We should normally abort here, but some legacy apps declare 5838 // resources in the 'android' package (old bug in AAPT). 5839 continue; 5840 } 5841 5842 // Aggregate all the flags for each package that defines this entry. 5843 if (typeSpec->typeSpecFlags != NULL) { 5844 specFlags |= dtohl(typeSpec->typeSpecFlags[realEntryIndex]); 5845 } else { 5846 specFlags = -1; 5847 } 5848 5849 const size_t numConfigs = typeSpec->configs.size(); 5850 for (size_t c = 0; c < numConfigs; c++) { 5851 const ResTable_type* const thisType = typeSpec->configs[c]; 5852 if (thisType == NULL) { 5853 continue; 5854 } 5855 5856 ResTable_config thisConfig; 5857 thisConfig.copyFromDtoH(thisType->config); 5858 5859 // Check to make sure this one is valid for the current parameters. 5860 if (config != NULL && !thisConfig.match(*config)) { 5861 continue; 5862 } 5863 5864 // Check if there is the desired entry in this type. 5865 const uint32_t* const eindex = reinterpret_cast<const uint32_t*>( 5866 reinterpret_cast<const uint8_t*>(thisType) + dtohs(thisType->header.headerSize)); 5867 5868 uint32_t thisOffset = dtohl(eindex[realEntryIndex]); 5869 if (thisOffset == ResTable_type::NO_ENTRY) { 5870 // There is no entry for this index and configuration. 5871 continue; 5872 } 5873 5874 if (bestType != NULL) { 5875 // Check if this one is less specific than the last found. If so, 5876 // we will skip it. We check starting with things we most care 5877 // about to those we least care about. 5878 if (!thisConfig.isBetterThan(bestConfig, config)) { 5879 if (!currentTypeIsOverlay || thisConfig.compare(bestConfig) != 0) { 5880 continue; 5881 } 5882 } 5883 } 5884 5885 bestType = thisType; 5886 bestOffset = thisOffset; 5887 bestConfig = thisConfig; 5888 bestPackage = typeSpec->package; 5889 actualTypeIndex = realTypeIndex; 5890 5891 // If no config was specified, any type will do, so skip 5892 if (config == NULL) { 5893 break; 5894 } 5895 } 5896 } 5897 5898 if (bestType == NULL) { 5899 return BAD_INDEX; 5900 } 5901 5902 bestOffset += dtohl(bestType->entriesStart); 5903 5904 if (bestOffset > (dtohl(bestType->header.size)-sizeof(ResTable_entry))) { 5905 ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x", 5906 bestOffset, dtohl(bestType->header.size)); 5907 return BAD_TYPE; 5908 } 5909 if ((bestOffset & 0x3) != 0) { 5910 ALOGW("ResTable_entry at 0x%x is not on an integer boundary", bestOffset); 5911 return BAD_TYPE; 5912 } 5913 5914 const ResTable_entry* const entry = reinterpret_cast<const ResTable_entry*>( 5915 reinterpret_cast<const uint8_t*>(bestType) + bestOffset); 5916 if (dtohs(entry->size) < sizeof(*entry)) { 5917 ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size)); 5918 return BAD_TYPE; 5919 } 5920 5921 if (outEntry != NULL) { 5922 outEntry->entry = entry; 5923 outEntry->config = bestConfig; 5924 outEntry->type = bestType; 5925 outEntry->specFlags = specFlags; 5926 outEntry->package = bestPackage; 5927 outEntry->typeStr = StringPoolRef(&bestPackage->typeStrings, actualTypeIndex - bestPackage->typeIdOffset); 5928 outEntry->keyStr = StringPoolRef(&bestPackage->keyStrings, dtohl(entry->key.index)); 5929 } 5930 return NO_ERROR; 5931 } 5932 5933 status_t ResTable::parsePackage(const ResTable_package* const pkg, 5934 const Header* const header) 5935 { 5936 const uint8_t* base = (const uint8_t*)pkg; 5937 status_t err = validate_chunk(&pkg->header, sizeof(*pkg) - sizeof(pkg->typeIdOffset), 5938 header->dataEnd, "ResTable_package"); 5939 if (err != NO_ERROR) { 5940 return (mError=err); 5941 } 5942 5943 const uint32_t pkgSize = dtohl(pkg->header.size); 5944 5945 if (dtohl(pkg->typeStrings) >= pkgSize) { 5946 ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.", 5947 dtohl(pkg->typeStrings), pkgSize); 5948 return (mError=BAD_TYPE); 5949 } 5950 if ((dtohl(pkg->typeStrings)&0x3) != 0) { 5951 ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.", 5952 dtohl(pkg->typeStrings)); 5953 return (mError=BAD_TYPE); 5954 } 5955 if (dtohl(pkg->keyStrings) >= pkgSize) { 5956 ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.", 5957 dtohl(pkg->keyStrings), pkgSize); 5958 return (mError=BAD_TYPE); 5959 } 5960 if ((dtohl(pkg->keyStrings)&0x3) != 0) { 5961 ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.", 5962 dtohl(pkg->keyStrings)); 5963 return (mError=BAD_TYPE); 5964 } 5965 5966 uint32_t id = dtohl(pkg->id); 5967 KeyedVector<uint8_t, IdmapEntries> idmapEntries; 5968 5969 if (header->resourceIDMap != NULL) { 5970 uint8_t targetPackageId = 0; 5971 status_t err = parseIdmap(header->resourceIDMap, header->resourceIDMapSize, &targetPackageId, &idmapEntries); 5972 if (err != NO_ERROR) { 5973 ALOGW("Overlay is broken"); 5974 return (mError=err); 5975 } 5976 id = targetPackageId; 5977 } 5978 5979 if (id >= 256) { 5980 LOG_ALWAYS_FATAL("Package id out of range"); 5981 return NO_ERROR; 5982 } else if (id == 0) { 5983 // This is a library so assign an ID 5984 id = mNextPackageId++; 5985 } 5986 5987 PackageGroup* group = NULL; 5988 Package* package = new Package(this, header, pkg); 5989 if (package == NULL) { 5990 return (mError=NO_MEMORY); 5991 } 5992 5993 err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings), 5994 header->dataEnd-(base+dtohl(pkg->typeStrings))); 5995 if (err != NO_ERROR) { 5996 delete group; 5997 delete package; 5998 return (mError=err); 5999 } 6000 6001 err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings), 6002 header->dataEnd-(base+dtohl(pkg->keyStrings))); 6003 if (err != NO_ERROR) { 6004 delete group; 6005 delete package; 6006 return (mError=err); 6007 } 6008 6009 size_t idx = mPackageMap[id]; 6010 if (idx == 0) { 6011 idx = mPackageGroups.size() + 1; 6012 6013 char16_t tmpName[sizeof(pkg->name)/sizeof(pkg->name[0])]; 6014 strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(pkg->name[0])); 6015 group = new PackageGroup(this, String16(tmpName), id); 6016 if (group == NULL) { 6017 delete package; 6018 return (mError=NO_MEMORY); 6019 } 6020 6021 err = mPackageGroups.add(group); 6022 if (err < NO_ERROR) { 6023 return (mError=err); 6024 } 6025 6026 mPackageMap[id] = static_cast<uint8_t>(idx); 6027 6028 // Find all packages that reference this package 6029 size_t N = mPackageGroups.size(); 6030 for (size_t i = 0; i < N; i++) { 6031 mPackageGroups[i]->dynamicRefTable.addMapping( 6032 group->name, static_cast<uint8_t>(group->id)); 6033 } 6034 } else { 6035 group = mPackageGroups.itemAt(idx - 1); 6036 if (group == NULL) { 6037 return (mError=UNKNOWN_ERROR); 6038 } 6039 } 6040 6041 err = group->packages.add(package); 6042 if (err < NO_ERROR) { 6043 return (mError=err); 6044 } 6045 6046 // Iterate through all chunks. 6047 const ResChunk_header* chunk = 6048 (const ResChunk_header*)(((const uint8_t*)pkg) 6049 + dtohs(pkg->header.headerSize)); 6050 const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size); 6051 while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) && 6052 ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) { 6053 if (kDebugTableNoisy) { 6054 ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 6055 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 6056 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 6057 } 6058 const size_t csize = dtohl(chunk->size); 6059 const uint16_t ctype = dtohs(chunk->type); 6060 if (ctype == RES_TABLE_TYPE_SPEC_TYPE) { 6061 const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk); 6062 err = validate_chunk(&typeSpec->header, sizeof(*typeSpec), 6063 endPos, "ResTable_typeSpec"); 6064 if (err != NO_ERROR) { 6065 return (mError=err); 6066 } 6067 6068 const size_t typeSpecSize = dtohl(typeSpec->header.size); 6069 const size_t newEntryCount = dtohl(typeSpec->entryCount); 6070 6071 if (kDebugLoadTableNoisy) { 6072 ALOGI("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n", 6073 (void*)(base-(const uint8_t*)chunk), 6074 dtohs(typeSpec->header.type), 6075 dtohs(typeSpec->header.headerSize), 6076 (void*)typeSpecSize); 6077 } 6078 // look for block overrun or int overflow when multiplying by 4 6079 if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t)) 6080 || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*newEntryCount) 6081 > typeSpecSize)) { 6082 ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.", 6083 (void*)(dtohs(typeSpec->header.headerSize) + (sizeof(uint32_t)*newEntryCount)), 6084 (void*)typeSpecSize); 6085 return (mError=BAD_TYPE); 6086 } 6087 6088 if (typeSpec->id == 0) { 6089 ALOGW("ResTable_type has an id of 0."); 6090 return (mError=BAD_TYPE); 6091 } 6092 6093 if (newEntryCount > 0) { 6094 uint8_t typeIndex = typeSpec->id - 1; 6095 ssize_t idmapIndex = idmapEntries.indexOfKey(typeSpec->id); 6096 if (idmapIndex >= 0) { 6097 typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1; 6098 } 6099 6100 TypeList& typeList = group->types.editItemAt(typeIndex); 6101 if (!typeList.isEmpty()) { 6102 const Type* existingType = typeList[0]; 6103 if (existingType->entryCount != newEntryCount && idmapIndex < 0) { 6104 ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d", 6105 (int) newEntryCount, (int) existingType->entryCount); 6106 // We should normally abort here, but some legacy apps declare 6107 // resources in the 'android' package (old bug in AAPT). 6108 } 6109 } 6110 6111 Type* t = new Type(header, package, newEntryCount); 6112 t->typeSpec = typeSpec; 6113 t->typeSpecFlags = (const uint32_t*)( 6114 ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize)); 6115 if (idmapIndex >= 0) { 6116 t->idmapEntries = idmapEntries[idmapIndex]; 6117 } 6118 typeList.add(t); 6119 group->largestTypeId = max(group->largestTypeId, typeSpec->id); 6120 } else { 6121 ALOGV("Skipping empty ResTable_typeSpec for type %d", typeSpec->id); 6122 } 6123 6124 } else if (ctype == RES_TABLE_TYPE_TYPE) { 6125 const ResTable_type* type = (const ResTable_type*)(chunk); 6126 err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4, 6127 endPos, "ResTable_type"); 6128 if (err != NO_ERROR) { 6129 return (mError=err); 6130 } 6131 6132 const uint32_t typeSize = dtohl(type->header.size); 6133 const size_t newEntryCount = dtohl(type->entryCount); 6134 6135 if (kDebugLoadTableNoisy) { 6136 printf("Type off %p: type=0x%x, headerSize=0x%x, size=%u\n", 6137 (void*)(base-(const uint8_t*)chunk), 6138 dtohs(type->header.type), 6139 dtohs(type->header.headerSize), 6140 typeSize); 6141 } 6142 if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*newEntryCount) > typeSize) { 6143 ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.", 6144 (void*)(dtohs(type->header.headerSize) + (sizeof(uint32_t)*newEntryCount)), 6145 typeSize); 6146 return (mError=BAD_TYPE); 6147 } 6148 6149 if (newEntryCount != 0 6150 && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) { 6151 ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.", 6152 dtohl(type->entriesStart), typeSize); 6153 return (mError=BAD_TYPE); 6154 } 6155 6156 if (type->id == 0) { 6157 ALOGW("ResTable_type has an id of 0."); 6158 return (mError=BAD_TYPE); 6159 } 6160 6161 if (newEntryCount > 0) { 6162 uint8_t typeIndex = type->id - 1; 6163 ssize_t idmapIndex = idmapEntries.indexOfKey(type->id); 6164 if (idmapIndex >= 0) { 6165 typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1; 6166 } 6167 6168 TypeList& typeList = group->types.editItemAt(typeIndex); 6169 if (typeList.isEmpty()) { 6170 ALOGE("No TypeSpec for type %d", type->id); 6171 return (mError=BAD_TYPE); 6172 } 6173 6174 Type* t = typeList.editItemAt(typeList.size() - 1); 6175 if (newEntryCount != t->entryCount) { 6176 ALOGE("ResTable_type entry count inconsistent: given %d, previously %d", 6177 (int)newEntryCount, (int)t->entryCount); 6178 return (mError=BAD_TYPE); 6179 } 6180 6181 if (t->package != package) { 6182 ALOGE("No TypeSpec for type %d", type->id); 6183 return (mError=BAD_TYPE); 6184 } 6185 6186 t->configs.add(type); 6187 6188 if (kDebugTableGetEntry) { 6189 ResTable_config thisConfig; 6190 thisConfig.copyFromDtoH(type->config); 6191 ALOGI("Adding config to type %d: %s\n", type->id, 6192 thisConfig.toString().string()); 6193 } 6194 } else { 6195 ALOGV("Skipping empty ResTable_type for type %d", type->id); 6196 } 6197 6198 } else if (ctype == RES_TABLE_LIBRARY_TYPE) { 6199 if (group->dynamicRefTable.entries().size() == 0) { 6200 status_t err = group->dynamicRefTable.load((const ResTable_lib_header*) chunk); 6201 if (err != NO_ERROR) { 6202 return (mError=err); 6203 } 6204 6205 // Fill in the reference table with the entries we already know about. 6206 size_t N = mPackageGroups.size(); 6207 for (size_t i = 0; i < N; i++) { 6208 group->dynamicRefTable.addMapping(mPackageGroups[i]->name, mPackageGroups[i]->id); 6209 } 6210 } else { 6211 ALOGW("Found multiple library tables, ignoring..."); 6212 } 6213 } else { 6214 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), 6215 endPos, "ResTable_package:unknown"); 6216 if (err != NO_ERROR) { 6217 return (mError=err); 6218 } 6219 } 6220 chunk = (const ResChunk_header*) 6221 (((const uint8_t*)chunk) + csize); 6222 } 6223 6224 return NO_ERROR; 6225 } 6226 6227 DynamicRefTable::DynamicRefTable(uint8_t packageId) 6228 : mAssignedPackageId(packageId) 6229 { 6230 memset(mLookupTable, 0, sizeof(mLookupTable)); 6231 6232 // Reserved package ids 6233 mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID; 6234 mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID; 6235 } 6236 6237 status_t DynamicRefTable::load(const ResTable_lib_header* const header) 6238 { 6239 const uint32_t entryCount = dtohl(header->count); 6240 const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount; 6241 const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize); 6242 if (sizeOfEntries > expectedSize) { 6243 ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).", 6244 expectedSize, entryCount, (uint32_t)sizeof(ResTable_lib_entry)); 6245 return UNKNOWN_ERROR; 6246 } 6247 6248 const ResTable_lib_entry* entry = (const ResTable_lib_entry*)(((uint8_t*) header) + 6249 dtohl(header->header.headerSize)); 6250 for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) { 6251 uint32_t packageId = dtohl(entry->packageId); 6252 char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)]; 6253 strcpy16_dtoh(tmpName, entry->packageName, sizeof(entry->packageName) / sizeof(char16_t)); 6254 if (kDebugLibNoisy) { 6255 ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(), 6256 dtohl(entry->packageId)); 6257 } 6258 if (packageId >= 256) { 6259 ALOGE("Bad package id 0x%08x", packageId); 6260 return UNKNOWN_ERROR; 6261 } 6262 mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId); 6263 entry = entry + 1; 6264 } 6265 return NO_ERROR; 6266 } 6267 6268 status_t DynamicRefTable::addMappings(const DynamicRefTable& other) { 6269 if (mAssignedPackageId != other.mAssignedPackageId) { 6270 return UNKNOWN_ERROR; 6271 } 6272 6273 const size_t entryCount = other.mEntries.size(); 6274 for (size_t i = 0; i < entryCount; i++) { 6275 ssize_t index = mEntries.indexOfKey(other.mEntries.keyAt(i)); 6276 if (index < 0) { 6277 mEntries.add(other.mEntries.keyAt(i), other.mEntries[i]); 6278 } else { 6279 if (other.mEntries[i] != mEntries[index]) { 6280 return UNKNOWN_ERROR; 6281 } 6282 } 6283 } 6284 6285 // Merge the lookup table. No entry can conflict 6286 // (value of 0 means not set). 6287 for (size_t i = 0; i < 256; i++) { 6288 if (mLookupTable[i] != other.mLookupTable[i]) { 6289 if (mLookupTable[i] == 0) { 6290 mLookupTable[i] = other.mLookupTable[i]; 6291 } else if (other.mLookupTable[i] != 0) { 6292 return UNKNOWN_ERROR; 6293 } 6294 } 6295 } 6296 return NO_ERROR; 6297 } 6298 6299 status_t DynamicRefTable::addMapping(const String16& packageName, uint8_t packageId) 6300 { 6301 ssize_t index = mEntries.indexOfKey(packageName); 6302 if (index < 0) { 6303 return UNKNOWN_ERROR; 6304 } 6305 mLookupTable[mEntries.valueAt(index)] = packageId; 6306 return NO_ERROR; 6307 } 6308 6309 status_t DynamicRefTable::lookupResourceId(uint32_t* resId) const { 6310 uint32_t res = *resId; 6311 size_t packageId = Res_GETPACKAGE(res) + 1; 6312 6313 if (packageId == APP_PACKAGE_ID) { 6314 // No lookup needs to be done, app package IDs are absolute. 6315 return NO_ERROR; 6316 } 6317 6318 if (packageId == 0) { 6319 // The package ID is 0x00. That means that a shared library is accessing 6320 // its own local resource, so we fix up the resource with the calling 6321 // package ID. 6322 *resId |= ((uint32_t) mAssignedPackageId) << 24; 6323 return NO_ERROR; 6324 } 6325 6326 // Do a proper lookup. 6327 uint8_t translatedId = mLookupTable[packageId]; 6328 if (translatedId == 0) { 6329 ALOGV("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.", 6330 (uint8_t)mAssignedPackageId, (uint8_t)packageId); 6331 for (size_t i = 0; i < 256; i++) { 6332 if (mLookupTable[i] != 0) { 6333 ALOGV("e[0x%02x] -> 0x%02x", (uint8_t)i, mLookupTable[i]); 6334 } 6335 } 6336 return UNKNOWN_ERROR; 6337 } 6338 6339 *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24); 6340 return NO_ERROR; 6341 } 6342 6343 status_t DynamicRefTable::lookupResourceValue(Res_value* value) const { 6344 if (value->dataType != Res_value::TYPE_DYNAMIC_REFERENCE) { 6345 return NO_ERROR; 6346 } 6347 6348 status_t err = lookupResourceId(&value->data); 6349 if (err != NO_ERROR) { 6350 return err; 6351 } 6352 6353 value->dataType = Res_value::TYPE_REFERENCE; 6354 return NO_ERROR; 6355 } 6356 6357 struct IdmapTypeMap { 6358 ssize_t overlayTypeId; 6359 size_t entryOffset; 6360 Vector<uint32_t> entryMap; 6361 }; 6362 6363 status_t ResTable::createIdmap(const ResTable& overlay, 6364 uint32_t targetCrc, uint32_t overlayCrc, 6365 const char* targetPath, const char* overlayPath, 6366 void** outData, size_t* outSize) const 6367 { 6368 // see README for details on the format of map 6369 if (mPackageGroups.size() == 0) { 6370 ALOGW("idmap: target package has no package groups, cannot create idmap\n"); 6371 return UNKNOWN_ERROR; 6372 } 6373 6374 if (mPackageGroups[0]->packages.size() == 0) { 6375 ALOGW("idmap: target package has no packages in its first package group, " 6376 "cannot create idmap\n"); 6377 return UNKNOWN_ERROR; 6378 } 6379 6380 KeyedVector<uint8_t, IdmapTypeMap> map; 6381 6382 // overlaid packages are assumed to contain only one package group 6383 const PackageGroup* pg = mPackageGroups[0]; 6384 6385 // starting size is header 6386 *outSize = ResTable::IDMAP_HEADER_SIZE_BYTES; 6387 6388 // target package id and number of types in map 6389 *outSize += 2 * sizeof(uint16_t); 6390 6391 // overlay packages are assumed to contain only one package group 6392 const ResTable_package* overlayPackageStruct = overlay.mPackageGroups[0]->packages[0]->package; 6393 char16_t tmpName[sizeof(overlayPackageStruct->name)/sizeof(overlayPackageStruct->name[0])]; 6394 strcpy16_dtoh(tmpName, overlayPackageStruct->name, sizeof(overlayPackageStruct->name)/sizeof(overlayPackageStruct->name[0])); 6395 const String16 overlayPackage(tmpName); 6396 6397 for (size_t typeIndex = 0; typeIndex < pg->types.size(); ++typeIndex) { 6398 const TypeList& typeList = pg->types[typeIndex]; 6399 if (typeList.isEmpty()) { 6400 continue; 6401 } 6402 6403 const Type* typeConfigs = typeList[0]; 6404 6405 IdmapTypeMap typeMap; 6406 typeMap.overlayTypeId = -1; 6407 typeMap.entryOffset = 0; 6408 6409 for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) { 6410 uint32_t resID = Res_MAKEID(pg->id - 1, typeIndex, entryIndex); 6411 resource_name resName; 6412 if (!this->getResourceName(resID, false, &resName)) { 6413 if (typeMap.entryMap.isEmpty()) { 6414 typeMap.entryOffset++; 6415 } 6416 continue; 6417 } 6418 6419 const String16 overlayType(resName.type, resName.typeLen); 6420 const String16 overlayName(resName.name, resName.nameLen); 6421 uint32_t overlayResID = overlay.identifierForName(overlayName.string(), 6422 overlayName.size(), 6423 overlayType.string(), 6424 overlayType.size(), 6425 overlayPackage.string(), 6426 overlayPackage.size()); 6427 if (overlayResID == 0) { 6428 if (typeMap.entryMap.isEmpty()) { 6429 typeMap.entryOffset++; 6430 } 6431 continue; 6432 } 6433 6434 if (typeMap.overlayTypeId == -1) { 6435 typeMap.overlayTypeId = Res_GETTYPE(overlayResID) + 1; 6436 } 6437 6438 if (Res_GETTYPE(overlayResID) + 1 != static_cast<size_t>(typeMap.overlayTypeId)) { 6439 ALOGE("idmap: can't mix type ids in entry map. Resource 0x%08x maps to 0x%08x" 6440 " but entries should map to resources of type %02zx", 6441 resID, overlayResID, typeMap.overlayTypeId); 6442 return BAD_TYPE; 6443 } 6444 6445 if (typeMap.entryOffset + typeMap.entryMap.size() < entryIndex) { 6446 // pad with 0xffffffff's (indicating non-existing entries) before adding this entry 6447 size_t index = typeMap.entryMap.size(); 6448 size_t numItems = entryIndex - (typeMap.entryOffset + index); 6449 if (typeMap.entryMap.insertAt(0xffffffff, index, numItems) < 0) { 6450 return NO_MEMORY; 6451 } 6452 } 6453 typeMap.entryMap.add(Res_GETENTRY(overlayResID)); 6454 } 6455 6456 if (!typeMap.entryMap.isEmpty()) { 6457 if (map.add(static_cast<uint8_t>(typeIndex), typeMap) < 0) { 6458 return NO_MEMORY; 6459 } 6460 *outSize += (4 * sizeof(uint16_t)) + (typeMap.entryMap.size() * sizeof(uint32_t)); 6461 } 6462 } 6463 6464 if (map.isEmpty()) { 6465 ALOGW("idmap: no resources in overlay package present in base package"); 6466 return UNKNOWN_ERROR; 6467 } 6468 6469 if ((*outData = malloc(*outSize)) == NULL) { 6470 return NO_MEMORY; 6471 } 6472 6473 uint32_t* data = (uint32_t*)*outData; 6474 *data++ = htodl(IDMAP_MAGIC); 6475 *data++ = htodl(IDMAP_CURRENT_VERSION); 6476 *data++ = htodl(targetCrc); 6477 *data++ = htodl(overlayCrc); 6478 const char* paths[] = { targetPath, overlayPath }; 6479 for (int j = 0; j < 2; ++j) { 6480 char* p = (char*)data; 6481 const char* path = paths[j]; 6482 const size_t I = strlen(path); 6483 if (I > 255) { 6484 ALOGV("path exceeds expected 255 characters: %s\n", path); 6485 return UNKNOWN_ERROR; 6486 } 6487 for (size_t i = 0; i < 256; ++i) { 6488 *p++ = i < I ? path[i] : '\0'; 6489 } 6490 data += 256 / sizeof(uint32_t); 6491 } 6492 const size_t mapSize = map.size(); 6493 uint16_t* typeData = reinterpret_cast<uint16_t*>(data); 6494 *typeData++ = htods(pg->id); 6495 *typeData++ = htods(mapSize); 6496 for (size_t i = 0; i < mapSize; ++i) { 6497 uint8_t targetTypeId = map.keyAt(i); 6498 const IdmapTypeMap& typeMap = map[i]; 6499 *typeData++ = htods(targetTypeId + 1); 6500 *typeData++ = htods(typeMap.overlayTypeId); 6501 *typeData++ = htods(typeMap.entryMap.size()); 6502 *typeData++ = htods(typeMap.entryOffset); 6503 6504 const size_t entryCount = typeMap.entryMap.size(); 6505 uint32_t* entries = reinterpret_cast<uint32_t*>(typeData); 6506 for (size_t j = 0; j < entryCount; j++) { 6507 entries[j] = htodl(typeMap.entryMap[j]); 6508 } 6509 typeData += entryCount * 2; 6510 } 6511 6512 return NO_ERROR; 6513 } 6514 6515 bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes, 6516 uint32_t* pVersion, 6517 uint32_t* pTargetCrc, uint32_t* pOverlayCrc, 6518 String8* pTargetPath, String8* pOverlayPath) 6519 { 6520 const uint32_t* map = (const uint32_t*)idmap; 6521 if (!assertIdmapHeader(map, sizeBytes)) { 6522 return false; 6523 } 6524 if (pVersion) { 6525 *pVersion = dtohl(map[1]); 6526 } 6527 if (pTargetCrc) { 6528 *pTargetCrc = dtohl(map[2]); 6529 } 6530 if (pOverlayCrc) { 6531 *pOverlayCrc = dtohl(map[3]); 6532 } 6533 if (pTargetPath) { 6534 pTargetPath->setTo(reinterpret_cast<const char*>(map + 4)); 6535 } 6536 if (pOverlayPath) { 6537 pOverlayPath->setTo(reinterpret_cast<const char*>(map + 4 + 256 / sizeof(uint32_t))); 6538 } 6539 return true; 6540 } 6541 6542 6543 #define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string()) 6544 6545 #define CHAR16_ARRAY_EQ(constant, var, len) \ 6546 ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len)))) 6547 6548 static void print_complex(uint32_t complex, bool isFraction) 6549 { 6550 const float MANTISSA_MULT = 6551 1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT); 6552 const float RADIX_MULTS[] = { 6553 1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT, 6554 1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT 6555 }; 6556 6557 float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK 6558 <<Res_value::COMPLEX_MANTISSA_SHIFT)) 6559 * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT) 6560 & Res_value::COMPLEX_RADIX_MASK]; 6561 printf("%f", value); 6562 6563 if (!isFraction) { 6564 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) { 6565 case Res_value::COMPLEX_UNIT_PX: printf("px"); break; 6566 case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break; 6567 case Res_value::COMPLEX_UNIT_SP: printf("sp"); break; 6568 case Res_value::COMPLEX_UNIT_PT: printf("pt"); break; 6569 case Res_value::COMPLEX_UNIT_IN: printf("in"); break; 6570 case Res_value::COMPLEX_UNIT_MM: printf("mm"); break; 6571 default: printf(" (unknown unit)"); break; 6572 } 6573 } else { 6574 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) { 6575 case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break; 6576 case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break; 6577 default: printf(" (unknown unit)"); break; 6578 } 6579 } 6580 } 6581 6582 // Normalize a string for output 6583 String8 ResTable::normalizeForOutput( const char *input ) 6584 { 6585 String8 ret; 6586 char buff[2]; 6587 buff[1] = '\0'; 6588 6589 while (*input != '\0') { 6590 switch (*input) { 6591 // All interesting characters are in the ASCII zone, so we are making our own lives 6592 // easier by scanning the string one byte at a time. 6593 case '\\': 6594 ret += "\\\\"; 6595 break; 6596 case '\n': 6597 ret += "\\n"; 6598 break; 6599 case '"': 6600 ret += "\\\""; 6601 break; 6602 default: 6603 buff[0] = *input; 6604 ret += buff; 6605 break; 6606 } 6607 6608 input++; 6609 } 6610 6611 return ret; 6612 } 6613 6614 void ResTable::print_value(const Package* pkg, const Res_value& value) const 6615 { 6616 if (value.dataType == Res_value::TYPE_NULL) { 6617 if (value.data == Res_value::DATA_NULL_UNDEFINED) { 6618 printf("(null)\n"); 6619 } else if (value.data == Res_value::DATA_NULL_EMPTY) { 6620 printf("(null empty)\n"); 6621 } else { 6622 // This should never happen. 6623 printf("(null) 0x%08x\n", value.data); 6624 } 6625 } else if (value.dataType == Res_value::TYPE_REFERENCE) { 6626 printf("(reference) 0x%08x\n", value.data); 6627 } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) { 6628 printf("(dynamic reference) 0x%08x\n", value.data); 6629 } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) { 6630 printf("(attribute) 0x%08x\n", value.data); 6631 } else if (value.dataType == Res_value::TYPE_STRING) { 6632 size_t len; 6633 const char* str8 = pkg->header->values.string8At( 6634 value.data, &len); 6635 if (str8 != NULL) { 6636 printf("(string8) \"%s\"\n", normalizeForOutput(str8).string()); 6637 } else { 6638 const char16_t* str16 = pkg->header->values.stringAt( 6639 value.data, &len); 6640 if (str16 != NULL) { 6641 printf("(string16) \"%s\"\n", 6642 normalizeForOutput(String8(str16, len).string()).string()); 6643 } else { 6644 printf("(string) null\n"); 6645 } 6646 } 6647 } else if (value.dataType == Res_value::TYPE_FLOAT) { 6648 printf("(float) %g\n", *(const float*)&value.data); 6649 } else if (value.dataType == Res_value::TYPE_DIMENSION) { 6650 printf("(dimension) "); 6651 print_complex(value.data, false); 6652 printf("\n"); 6653 } else if (value.dataType == Res_value::TYPE_FRACTION) { 6654 printf("(fraction) "); 6655 print_complex(value.data, true); 6656 printf("\n"); 6657 } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT 6658 || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) { 6659 printf("(color) #%08x\n", value.data); 6660 } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) { 6661 printf("(boolean) %s\n", value.data ? "true" : "false"); 6662 } else if (value.dataType >= Res_value::TYPE_FIRST_INT 6663 || value.dataType <= Res_value::TYPE_LAST_INT) { 6664 printf("(int) 0x%08x or %d\n", value.data, value.data); 6665 } else { 6666 printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n", 6667 (int)value.dataType, (int)value.data, 6668 (int)value.size, (int)value.res0); 6669 } 6670 } 6671 6672 void ResTable::print(bool inclValues) const 6673 { 6674 if (mError != 0) { 6675 printf("mError=0x%x (%s)\n", mError, strerror(mError)); 6676 } 6677 size_t pgCount = mPackageGroups.size(); 6678 printf("Package Groups (%d)\n", (int)pgCount); 6679 for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) { 6680 const PackageGroup* pg = mPackageGroups[pgIndex]; 6681 printf("Package Group %d id=0x%02x packageCount=%d name=%s\n", 6682 (int)pgIndex, pg->id, (int)pg->packages.size(), 6683 String8(pg->name).string()); 6684 6685 const KeyedVector<String16, uint8_t>& refEntries = pg->dynamicRefTable.entries(); 6686 const size_t refEntryCount = refEntries.size(); 6687 if (refEntryCount > 0) { 6688 printf(" DynamicRefTable entryCount=%d:\n", (int) refEntryCount); 6689 for (size_t refIndex = 0; refIndex < refEntryCount; refIndex++) { 6690 printf(" 0x%02x -> %s\n", 6691 refEntries.valueAt(refIndex), 6692 String8(refEntries.keyAt(refIndex)).string()); 6693 } 6694 printf("\n"); 6695 } 6696 6697 int packageId = pg->id; 6698 size_t pkgCount = pg->packages.size(); 6699 for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) { 6700 const Package* pkg = pg->packages[pkgIndex]; 6701 // Use a package's real ID, since the ID may have been assigned 6702 // if this package is a shared library. 6703 packageId = pkg->package->id; 6704 char16_t tmpName[sizeof(pkg->package->name)/sizeof(pkg->package->name[0])]; 6705 strcpy16_dtoh(tmpName, pkg->package->name, sizeof(pkg->package->name)/sizeof(pkg->package->name[0])); 6706 printf(" Package %d id=0x%02x name=%s\n", (int)pkgIndex, 6707 pkg->package->id, String8(tmpName).string()); 6708 } 6709 6710 for (size_t typeIndex=0; typeIndex < pg->types.size(); typeIndex++) { 6711 const TypeList& typeList = pg->types[typeIndex]; 6712 if (typeList.isEmpty()) { 6713 continue; 6714 } 6715 const Type* typeConfigs = typeList[0]; 6716 const size_t NTC = typeConfigs->configs.size(); 6717 printf(" type %d configCount=%d entryCount=%d\n", 6718 (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount); 6719 if (typeConfigs->typeSpecFlags != NULL) { 6720 for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) { 6721 uint32_t resID = (0xff000000 & ((packageId)<<24)) 6722 | (0x00ff0000 & ((typeIndex+1)<<16)) 6723 | (0x0000ffff & (entryIndex)); 6724 // Since we are creating resID without actually 6725 // iterating over them, we have no idea which is a 6726 // dynamic reference. We must check. 6727 if (packageId == 0) { 6728 pg->dynamicRefTable.lookupResourceId(&resID); 6729 } 6730 6731 resource_name resName; 6732 if (this->getResourceName(resID, true, &resName)) { 6733 String8 type8; 6734 String8 name8; 6735 if (resName.type8 != NULL) { 6736 type8 = String8(resName.type8, resName.typeLen); 6737 } else { 6738 type8 = String8(resName.type, resName.typeLen); 6739 } 6740 if (resName.name8 != NULL) { 6741 name8 = String8(resName.name8, resName.nameLen); 6742 } else { 6743 name8 = String8(resName.name, resName.nameLen); 6744 } 6745 printf(" spec resource 0x%08x %s:%s/%s: flags=0x%08x\n", 6746 resID, 6747 CHAR16_TO_CSTR(resName.package, resName.packageLen), 6748 type8.string(), name8.string(), 6749 dtohl(typeConfigs->typeSpecFlags[entryIndex])); 6750 } else { 6751 printf(" INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID); 6752 } 6753 } 6754 } 6755 for (size_t configIndex=0; configIndex<NTC; configIndex++) { 6756 const ResTable_type* type = typeConfigs->configs[configIndex]; 6757 if ((((uint64_t)type)&0x3) != 0) { 6758 printf(" NON-INTEGER ResTable_type ADDRESS: %p\n", type); 6759 continue; 6760 } 6761 6762 // Always copy the config, as fields get added and we need to 6763 // set the defaults. 6764 ResTable_config thisConfig; 6765 thisConfig.copyFromDtoH(type->config); 6766 6767 String8 configStr = thisConfig.toString(); 6768 printf(" config %s:\n", configStr.size() > 0 6769 ? configStr.string() : "(default)"); 6770 size_t entryCount = dtohl(type->entryCount); 6771 uint32_t entriesStart = dtohl(type->entriesStart); 6772 if ((entriesStart&0x3) != 0) { 6773 printf(" NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n", entriesStart); 6774 continue; 6775 } 6776 uint32_t typeSize = dtohl(type->header.size); 6777 if ((typeSize&0x3) != 0) { 6778 printf(" NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize); 6779 continue; 6780 } 6781 for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) { 6782 const uint32_t* const eindex = (const uint32_t*) 6783 (((const uint8_t*)type) + dtohs(type->header.headerSize)); 6784 6785 uint32_t thisOffset = dtohl(eindex[entryIndex]); 6786 if (thisOffset == ResTable_type::NO_ENTRY) { 6787 continue; 6788 } 6789 6790 uint32_t resID = (0xff000000 & ((packageId)<<24)) 6791 | (0x00ff0000 & ((typeIndex+1)<<16)) 6792 | (0x0000ffff & (entryIndex)); 6793 if (packageId == 0) { 6794 pg->dynamicRefTable.lookupResourceId(&resID); 6795 } 6796 resource_name resName; 6797 if (this->getResourceName(resID, true, &resName)) { 6798 String8 type8; 6799 String8 name8; 6800 if (resName.type8 != NULL) { 6801 type8 = String8(resName.type8, resName.typeLen); 6802 } else { 6803 type8 = String8(resName.type, resName.typeLen); 6804 } 6805 if (resName.name8 != NULL) { 6806 name8 = String8(resName.name8, resName.nameLen); 6807 } else { 6808 name8 = String8(resName.name, resName.nameLen); 6809 } 6810 printf(" resource 0x%08x %s:%s/%s: ", resID, 6811 CHAR16_TO_CSTR(resName.package, resName.packageLen), 6812 type8.string(), name8.string()); 6813 } else { 6814 printf(" INVALID RESOURCE 0x%08x: ", resID); 6815 } 6816 if ((thisOffset&0x3) != 0) { 6817 printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset); 6818 continue; 6819 } 6820 if ((thisOffset+sizeof(ResTable_entry)) > typeSize) { 6821 printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n", 6822 entriesStart, thisOffset, typeSize); 6823 continue; 6824 } 6825 6826 const ResTable_entry* ent = (const ResTable_entry*) 6827 (((const uint8_t*)type) + entriesStart + thisOffset); 6828 if (((entriesStart + thisOffset)&0x3) != 0) { 6829 printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n", 6830 (entriesStart + thisOffset)); 6831 continue; 6832 } 6833 6834 uintptr_t esize = dtohs(ent->size); 6835 if ((esize&0x3) != 0) { 6836 printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *)esize); 6837 continue; 6838 } 6839 if ((thisOffset+esize) > typeSize) { 6840 printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n", 6841 entriesStart, thisOffset, (void *)esize, typeSize); 6842 continue; 6843 } 6844 6845 const Res_value* valuePtr = NULL; 6846 const ResTable_map_entry* bagPtr = NULL; 6847 Res_value value; 6848 if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) { 6849 printf("<bag>"); 6850 bagPtr = (const ResTable_map_entry*)ent; 6851 } else { 6852 valuePtr = (const Res_value*) 6853 (((const uint8_t*)ent) + esize); 6854 value.copyFrom_dtoh(*valuePtr); 6855 printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)", 6856 (int)value.dataType, (int)value.data, 6857 (int)value.size, (int)value.res0); 6858 } 6859 6860 if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) { 6861 printf(" (PUBLIC)"); 6862 } 6863 printf("\n"); 6864 6865 if (inclValues) { 6866 if (valuePtr != NULL) { 6867 printf(" "); 6868 print_value(typeConfigs->package, value); 6869 } else if (bagPtr != NULL) { 6870 const int N = dtohl(bagPtr->count); 6871 const uint8_t* baseMapPtr = (const uint8_t*)ent; 6872 size_t mapOffset = esize; 6873 const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset); 6874 const uint32_t parent = dtohl(bagPtr->parent.ident); 6875 uint32_t resolvedParent = parent; 6876 if (Res_GETPACKAGE(resolvedParent) + 1 == 0) { 6877 status_t err = pg->dynamicRefTable.lookupResourceId(&resolvedParent); 6878 if (err != NO_ERROR) { 6879 resolvedParent = 0; 6880 } 6881 } 6882 printf(" Parent=0x%08x(Resolved=0x%08x), Count=%d\n", 6883 parent, resolvedParent, N); 6884 for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) { 6885 printf(" #%i (Key=0x%08x): ", 6886 i, dtohl(mapPtr->name.ident)); 6887 value.copyFrom_dtoh(mapPtr->value); 6888 print_value(typeConfigs->package, value); 6889 const size_t size = dtohs(mapPtr->value.size); 6890 mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value); 6891 mapPtr = (ResTable_map*)(baseMapPtr+mapOffset); 6892 } 6893 } 6894 } 6895 } 6896 } 6897 } 6898 } 6899 } 6900 6901 } // namespace android 6902