ResourceTypes.cpp revision 5520581b5f043fb858b5b2044ff33ad8545a6d38
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 <algorithm> 28#include <limits> 29#include <memory> 30#include <type_traits> 31 32#include <androidfw/ByteBucketArray.h> 33#include <androidfw/ResourceTypes.h> 34#include <androidfw/TypeWrappers.h> 35#include <utils/Atomic.h> 36#include <utils/ByteOrder.h> 37#include <utils/Debug.h> 38#include <utils/Log.h> 39#include <utils/String16.h> 40#include <utils/String8.h> 41 42#ifdef __ANDROID__ 43#include <binder/TextOutput.h> 44#endif 45 46#ifndef INT32_MAX 47#define INT32_MAX ((int32_t)(2147483647)) 48#endif 49 50namespace android { 51 52#if defined(_WIN32) 53#undef nhtol 54#undef htonl 55#define ntohl(x) ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) ) 56#define htonl(x) ntohl(x) 57#define ntohs(x) ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) ) 58#define htons(x) ntohs(x) 59#endif 60 61#define IDMAP_MAGIC 0x504D4449 62#define IDMAP_CURRENT_VERSION 0x00000001 63 64#define APP_PACKAGE_ID 0x7f 65#define SYS_PACKAGE_ID 0x01 66 67static const bool kDebugStringPoolNoisy = false; 68static const bool kDebugXMLNoisy = false; 69static const bool kDebugTableNoisy = false; 70static const bool kDebugTableGetEntry = false; 71static const bool kDebugTableSuperNoisy = false; 72static const bool kDebugLoadTableNoisy = false; 73static const bool kDebugLoadTableSuperNoisy = false; 74static const bool kDebugTableTheme = false; 75static const bool kDebugResXMLTree = false; 76static const bool kDebugLibNoisy = false; 77 78// TODO: This code uses 0xFFFFFFFF converted to bag_set* as a sentinel value. This is bad practice. 79 80// Standard C isspace() is only required to look at the low byte of its input, so 81// produces incorrect results for UTF-16 characters. For safety's sake, assume that 82// any high-byte UTF-16 code point is not whitespace. 83inline int isspace16(char16_t c) { 84 return (c < 0x0080 && isspace(c)); 85} 86 87template<typename T> 88inline static T max(T a, T b) { 89 return a > b ? a : b; 90} 91 92// range checked; guaranteed to NUL-terminate within the stated number of available slots 93// NOTE: if this truncates the dst string due to running out of space, no attempt is 94// made to avoid splitting surrogate pairs. 95static void strcpy16_dtoh(char16_t* dst, const uint16_t* src, size_t avail) 96{ 97 char16_t* last = dst + avail - 1; 98 while (*src && (dst < last)) { 99 char16_t s = dtohs(static_cast<char16_t>(*src)); 100 *dst++ = s; 101 src++; 102 } 103 *dst = 0; 104} 105 106static status_t validate_chunk(const ResChunk_header* chunk, 107 size_t minSize, 108 const uint8_t* dataEnd, 109 const char* name) 110{ 111 const uint16_t headerSize = dtohs(chunk->headerSize); 112 const uint32_t size = dtohl(chunk->size); 113 114 if (headerSize >= minSize) { 115 if (headerSize <= size) { 116 if (((headerSize|size)&0x3) == 0) { 117 if ((size_t)size <= (size_t)(dataEnd-((const uint8_t*)chunk))) { 118 return NO_ERROR; 119 } 120 ALOGW("%s data size 0x%x extends beyond resource end %p.", 121 name, size, (void*)(dataEnd-((const uint8_t*)chunk))); 122 return BAD_TYPE; 123 } 124 ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.", 125 name, (int)size, (int)headerSize); 126 return BAD_TYPE; 127 } 128 ALOGW("%s size 0x%x is smaller than header size 0x%x.", 129 name, size, headerSize); 130 return BAD_TYPE; 131 } 132 ALOGW("%s header size 0x%04x is too small.", 133 name, headerSize); 134 return BAD_TYPE; 135} 136 137static void fill9patchOffsets(Res_png_9patch* patch) { 138 patch->xDivsOffset = sizeof(Res_png_9patch); 139 patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t)); 140 patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t)); 141} 142 143inline void Res_value::copyFrom_dtoh(const Res_value& src) 144{ 145 size = dtohs(src.size); 146 res0 = src.res0; 147 dataType = src.dataType; 148 data = dtohl(src.data); 149} 150 151void Res_png_9patch::deviceToFile() 152{ 153 int32_t* xDivs = getXDivs(); 154 for (int i = 0; i < numXDivs; i++) { 155 xDivs[i] = htonl(xDivs[i]); 156 } 157 int32_t* yDivs = getYDivs(); 158 for (int i = 0; i < numYDivs; i++) { 159 yDivs[i] = htonl(yDivs[i]); 160 } 161 paddingLeft = htonl(paddingLeft); 162 paddingRight = htonl(paddingRight); 163 paddingTop = htonl(paddingTop); 164 paddingBottom = htonl(paddingBottom); 165 uint32_t* colors = getColors(); 166 for (int i=0; i<numColors; i++) { 167 colors[i] = htonl(colors[i]); 168 } 169} 170 171void Res_png_9patch::fileToDevice() 172{ 173 int32_t* xDivs = getXDivs(); 174 for (int i = 0; i < numXDivs; i++) { 175 xDivs[i] = ntohl(xDivs[i]); 176 } 177 int32_t* yDivs = getYDivs(); 178 for (int i = 0; i < numYDivs; i++) { 179 yDivs[i] = ntohl(yDivs[i]); 180 } 181 paddingLeft = ntohl(paddingLeft); 182 paddingRight = ntohl(paddingRight); 183 paddingTop = ntohl(paddingTop); 184 paddingBottom = ntohl(paddingBottom); 185 uint32_t* colors = getColors(); 186 for (int i=0; i<numColors; i++) { 187 colors[i] = ntohl(colors[i]); 188 } 189} 190 191size_t Res_png_9patch::serializedSize() const 192{ 193 // The size of this struct is 32 bytes on the 32-bit target system 194 // 4 * int8_t 195 // 4 * int32_t 196 // 3 * uint32_t 197 return 32 198 + numXDivs * sizeof(int32_t) 199 + numYDivs * sizeof(int32_t) 200 + numColors * sizeof(uint32_t); 201} 202 203void* Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs, 204 const int32_t* yDivs, const uint32_t* colors) 205{ 206 // Use calloc since we're going to leave a few holes in the data 207 // and want this to run cleanly under valgrind 208 void* newData = calloc(1, patch.serializedSize()); 209 serialize(patch, xDivs, yDivs, colors, newData); 210 return newData; 211} 212 213void Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs, 214 const int32_t* yDivs, const uint32_t* colors, void* outData) 215{ 216 uint8_t* data = (uint8_t*) outData; 217 memcpy(data, &patch.wasDeserialized, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors 218 memcpy(data + 12, &patch.paddingLeft, 16); // copy paddingXXXX 219 data += 32; 220 221 memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t)); 222 data += patch.numXDivs * sizeof(int32_t); 223 memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t)); 224 data += patch.numYDivs * sizeof(int32_t); 225 memcpy(data, colors, patch.numColors * sizeof(uint32_t)); 226 227 fill9patchOffsets(reinterpret_cast<Res_png_9patch*>(outData)); 228} 229 230static bool assertIdmapHeader(const void* idmap, size_t size) { 231 if (reinterpret_cast<uintptr_t>(idmap) & 0x03) { 232 ALOGE("idmap: header is not word aligned"); 233 return false; 234 } 235 236 if (size < ResTable::IDMAP_HEADER_SIZE_BYTES) { 237 ALOGW("idmap: header too small (%d bytes)", (uint32_t) size); 238 return false; 239 } 240 241 const uint32_t magic = htodl(*reinterpret_cast<const uint32_t*>(idmap)); 242 if (magic != IDMAP_MAGIC) { 243 ALOGW("idmap: no magic found in header (is 0x%08x, expected 0x%08x)", 244 magic, IDMAP_MAGIC); 245 return false; 246 } 247 248 const uint32_t version = htodl(*(reinterpret_cast<const uint32_t*>(idmap) + 1)); 249 if (version != IDMAP_CURRENT_VERSION) { 250 // We are strict about versions because files with this format are 251 // auto-generated and don't need backwards compatibility. 252 ALOGW("idmap: version mismatch in header (is 0x%08x, expected 0x%08x)", 253 version, IDMAP_CURRENT_VERSION); 254 return false; 255 } 256 return true; 257} 258 259class IdmapEntries { 260public: 261 IdmapEntries() : mData(NULL) {} 262 263 bool hasEntries() const { 264 if (mData == NULL) { 265 return false; 266 } 267 268 return (dtohs(*mData) > 0); 269 } 270 271 size_t byteSize() const { 272 if (mData == NULL) { 273 return 0; 274 } 275 uint16_t entryCount = dtohs(mData[2]); 276 return (sizeof(uint16_t) * 4) + (sizeof(uint32_t) * static_cast<size_t>(entryCount)); 277 } 278 279 uint8_t targetTypeId() const { 280 if (mData == NULL) { 281 return 0; 282 } 283 return dtohs(mData[0]); 284 } 285 286 uint8_t overlayTypeId() const { 287 if (mData == NULL) { 288 return 0; 289 } 290 return dtohs(mData[1]); 291 } 292 293 status_t setTo(const void* entryHeader, size_t size) { 294 if (reinterpret_cast<uintptr_t>(entryHeader) & 0x03) { 295 ALOGE("idmap: entry header is not word aligned"); 296 return UNKNOWN_ERROR; 297 } 298 299 if (size < sizeof(uint16_t) * 4) { 300 ALOGE("idmap: entry header is too small (%u bytes)", (uint32_t) size); 301 return UNKNOWN_ERROR; 302 } 303 304 const uint16_t* header = reinterpret_cast<const uint16_t*>(entryHeader); 305 const uint16_t targetTypeId = dtohs(header[0]); 306 const uint16_t overlayTypeId = dtohs(header[1]); 307 if (targetTypeId == 0 || overlayTypeId == 0 || targetTypeId > 255 || overlayTypeId > 255) { 308 ALOGE("idmap: invalid type map (%u -> %u)", targetTypeId, overlayTypeId); 309 return UNKNOWN_ERROR; 310 } 311 312 uint16_t entryCount = dtohs(header[2]); 313 if (size < sizeof(uint32_t) * (entryCount + 2)) { 314 ALOGE("idmap: too small (%u bytes) for the number of entries (%u)", 315 (uint32_t) size, (uint32_t) entryCount); 316 return UNKNOWN_ERROR; 317 } 318 mData = header; 319 return NO_ERROR; 320 } 321 322 status_t lookup(uint16_t entryId, uint16_t* outEntryId) const { 323 uint16_t entryCount = dtohs(mData[2]); 324 uint16_t offset = dtohs(mData[3]); 325 326 if (entryId < offset) { 327 // The entry is not present in this idmap 328 return BAD_INDEX; 329 } 330 331 entryId -= offset; 332 333 if (entryId >= entryCount) { 334 // The entry is not present in this idmap 335 return BAD_INDEX; 336 } 337 338 // It is safe to access the type here without checking the size because 339 // we have checked this when it was first loaded. 340 const uint32_t* entries = reinterpret_cast<const uint32_t*>(mData) + 2; 341 uint32_t mappedEntry = dtohl(entries[entryId]); 342 if (mappedEntry == 0xffffffff) { 343 // This entry is not present in this idmap 344 return BAD_INDEX; 345 } 346 *outEntryId = static_cast<uint16_t>(mappedEntry); 347 return NO_ERROR; 348 } 349 350private: 351 const uint16_t* mData; 352}; 353 354status_t parseIdmap(const void* idmap, size_t size, uint8_t* outPackageId, KeyedVector<uint8_t, IdmapEntries>* outMap) { 355 if (!assertIdmapHeader(idmap, size)) { 356 return UNKNOWN_ERROR; 357 } 358 359 size -= ResTable::IDMAP_HEADER_SIZE_BYTES; 360 if (size < sizeof(uint16_t) * 2) { 361 ALOGE("idmap: too small to contain any mapping"); 362 return UNKNOWN_ERROR; 363 } 364 365 const uint16_t* data = reinterpret_cast<const uint16_t*>( 366 reinterpret_cast<const uint8_t*>(idmap) + ResTable::IDMAP_HEADER_SIZE_BYTES); 367 368 uint16_t targetPackageId = dtohs(*(data++)); 369 if (targetPackageId == 0 || targetPackageId > 255) { 370 ALOGE("idmap: target package ID is invalid (%02x)", targetPackageId); 371 return UNKNOWN_ERROR; 372 } 373 374 uint16_t mapCount = dtohs(*(data++)); 375 if (mapCount == 0) { 376 ALOGE("idmap: no mappings"); 377 return UNKNOWN_ERROR; 378 } 379 380 if (mapCount > 255) { 381 ALOGW("idmap: too many mappings. Only 255 are possible but %u are present", (uint32_t) mapCount); 382 } 383 384 while (size > sizeof(uint16_t) * 4) { 385 IdmapEntries entries; 386 status_t err = entries.setTo(data, size); 387 if (err != NO_ERROR) { 388 return err; 389 } 390 391 ssize_t index = outMap->add(entries.overlayTypeId(), entries); 392 if (index < 0) { 393 return NO_MEMORY; 394 } 395 396 data += entries.byteSize() / sizeof(uint16_t); 397 size -= entries.byteSize(); 398 } 399 400 if (outPackageId != NULL) { 401 *outPackageId = static_cast<uint8_t>(targetPackageId); 402 } 403 return NO_ERROR; 404} 405 406Res_png_9patch* Res_png_9patch::deserialize(void* inData) 407{ 408 409 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(inData); 410 patch->wasDeserialized = true; 411 fill9patchOffsets(patch); 412 413 return patch; 414} 415 416// -------------------------------------------------------------------- 417// -------------------------------------------------------------------- 418// -------------------------------------------------------------------- 419 420ResStringPool::ResStringPool() 421 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 422{ 423} 424 425ResStringPool::ResStringPool(const void* data, size_t size, bool copyData) 426 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 427{ 428 setTo(data, size, copyData); 429} 430 431ResStringPool::~ResStringPool() 432{ 433 uninit(); 434} 435 436void ResStringPool::setToEmpty() 437{ 438 uninit(); 439 440 mOwnedData = calloc(1, sizeof(ResStringPool_header)); 441 ResStringPool_header* header = (ResStringPool_header*) mOwnedData; 442 mSize = 0; 443 mEntries = NULL; 444 mStrings = NULL; 445 mStringPoolSize = 0; 446 mEntryStyles = NULL; 447 mStyles = NULL; 448 mStylePoolSize = 0; 449 mHeader = (const ResStringPool_header*) header; 450} 451 452status_t ResStringPool::setTo(const void* data, size_t size, bool copyData) 453{ 454 if (!data || !size) { 455 return (mError=BAD_TYPE); 456 } 457 458 uninit(); 459 460 const bool notDeviceEndian = htods(0xf0) != 0xf0; 461 462 if (copyData || notDeviceEndian) { 463 mOwnedData = malloc(size); 464 if (mOwnedData == NULL) { 465 return (mError=NO_MEMORY); 466 } 467 memcpy(mOwnedData, data, size); 468 data = mOwnedData; 469 } 470 471 mHeader = (const ResStringPool_header*)data; 472 473 if (notDeviceEndian) { 474 ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader); 475 h->header.headerSize = dtohs(mHeader->header.headerSize); 476 h->header.type = dtohs(mHeader->header.type); 477 h->header.size = dtohl(mHeader->header.size); 478 h->stringCount = dtohl(mHeader->stringCount); 479 h->styleCount = dtohl(mHeader->styleCount); 480 h->flags = dtohl(mHeader->flags); 481 h->stringsStart = dtohl(mHeader->stringsStart); 482 h->stylesStart = dtohl(mHeader->stylesStart); 483 } 484 485 if (mHeader->header.headerSize > mHeader->header.size 486 || mHeader->header.size > size) { 487 ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n", 488 (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size); 489 return (mError=BAD_TYPE); 490 } 491 mSize = mHeader->header.size; 492 mEntries = (const uint32_t*) 493 (((const uint8_t*)data)+mHeader->header.headerSize); 494 495 if (mHeader->stringCount > 0) { 496 if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount) // uint32 overflow? 497 || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))) 498 > size) { 499 ALOGW("Bad string block: entry of %d items extends past data size %d\n", 500 (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))), 501 (int)size); 502 return (mError=BAD_TYPE); 503 } 504 505 size_t charSize; 506 if (mHeader->flags&ResStringPool_header::UTF8_FLAG) { 507 charSize = sizeof(uint8_t); 508 } else { 509 charSize = sizeof(uint16_t); 510 } 511 512 // There should be at least space for the smallest string 513 // (2 bytes length, null terminator). 514 if (mHeader->stringsStart >= (mSize - sizeof(uint16_t))) { 515 ALOGW("Bad string block: string pool starts at %d, after total size %d\n", 516 (int)mHeader->stringsStart, (int)mHeader->header.size); 517 return (mError=BAD_TYPE); 518 } 519 520 mStrings = (const void*) 521 (((const uint8_t*)data) + mHeader->stringsStart); 522 523 if (mHeader->styleCount == 0) { 524 mStringPoolSize = (mSize - mHeader->stringsStart) / charSize; 525 } else { 526 // check invariant: styles starts before end of data 527 if (mHeader->stylesStart >= (mSize - sizeof(uint16_t))) { 528 ALOGW("Bad style block: style block starts at %d past data size of %d\n", 529 (int)mHeader->stylesStart, (int)mHeader->header.size); 530 return (mError=BAD_TYPE); 531 } 532 // check invariant: styles follow the strings 533 if (mHeader->stylesStart <= mHeader->stringsStart) { 534 ALOGW("Bad style block: style block starts at %d, before strings at %d\n", 535 (int)mHeader->stylesStart, (int)mHeader->stringsStart); 536 return (mError=BAD_TYPE); 537 } 538 mStringPoolSize = 539 (mHeader->stylesStart-mHeader->stringsStart)/charSize; 540 } 541 542 // check invariant: stringCount > 0 requires a string pool to exist 543 if (mStringPoolSize == 0) { 544 ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount); 545 return (mError=BAD_TYPE); 546 } 547 548 if (notDeviceEndian) { 549 size_t i; 550 uint32_t* e = const_cast<uint32_t*>(mEntries); 551 for (i=0; i<mHeader->stringCount; i++) { 552 e[i] = dtohl(mEntries[i]); 553 } 554 if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) { 555 const uint16_t* strings = (const uint16_t*)mStrings; 556 uint16_t* s = const_cast<uint16_t*>(strings); 557 for (i=0; i<mStringPoolSize; i++) { 558 s[i] = dtohs(strings[i]); 559 } 560 } 561 } 562 563 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG && 564 ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) || 565 (!mHeader->flags&ResStringPool_header::UTF8_FLAG && 566 ((uint16_t*)mStrings)[mStringPoolSize-1] != 0)) { 567 ALOGW("Bad string block: last string is not 0-terminated\n"); 568 return (mError=BAD_TYPE); 569 } 570 } else { 571 mStrings = NULL; 572 mStringPoolSize = 0; 573 } 574 575 if (mHeader->styleCount > 0) { 576 mEntryStyles = mEntries + mHeader->stringCount; 577 // invariant: integer overflow in calculating mEntryStyles 578 if (mEntryStyles < mEntries) { 579 ALOGW("Bad string block: integer overflow finding styles\n"); 580 return (mError=BAD_TYPE); 581 } 582 583 if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) { 584 ALOGW("Bad string block: entry of %d styles extends past data size %d\n", 585 (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader), 586 (int)size); 587 return (mError=BAD_TYPE); 588 } 589 mStyles = (const uint32_t*) 590 (((const uint8_t*)data)+mHeader->stylesStart); 591 if (mHeader->stylesStart >= mHeader->header.size) { 592 ALOGW("Bad string block: style pool starts %d, after total size %d\n", 593 (int)mHeader->stylesStart, (int)mHeader->header.size); 594 return (mError=BAD_TYPE); 595 } 596 mStylePoolSize = 597 (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t); 598 599 if (notDeviceEndian) { 600 size_t i; 601 uint32_t* e = const_cast<uint32_t*>(mEntryStyles); 602 for (i=0; i<mHeader->styleCount; i++) { 603 e[i] = dtohl(mEntryStyles[i]); 604 } 605 uint32_t* s = const_cast<uint32_t*>(mStyles); 606 for (i=0; i<mStylePoolSize; i++) { 607 s[i] = dtohl(mStyles[i]); 608 } 609 } 610 611 const ResStringPool_span endSpan = { 612 { htodl(ResStringPool_span::END) }, 613 htodl(ResStringPool_span::END), htodl(ResStringPool_span::END) 614 }; 615 if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))], 616 &endSpan, sizeof(endSpan)) != 0) { 617 ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n"); 618 return (mError=BAD_TYPE); 619 } 620 } else { 621 mEntryStyles = NULL; 622 mStyles = NULL; 623 mStylePoolSize = 0; 624 } 625 626 return (mError=NO_ERROR); 627} 628 629status_t ResStringPool::getError() const 630{ 631 return mError; 632} 633 634void ResStringPool::uninit() 635{ 636 mError = NO_INIT; 637 if (mHeader != NULL && mCache != NULL) { 638 for (size_t x = 0; x < mHeader->stringCount; x++) { 639 if (mCache[x] != NULL) { 640 free(mCache[x]); 641 mCache[x] = NULL; 642 } 643 } 644 free(mCache); 645 mCache = NULL; 646 } 647 if (mOwnedData) { 648 free(mOwnedData); 649 mOwnedData = NULL; 650 } 651} 652 653/** 654 * Strings in UTF-16 format have length indicated by a length encoded in the 655 * stored data. It is either 1 or 2 characters of length data. This allows a 656 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that 657 * much data in a string, you're abusing them. 658 * 659 * If the high bit is set, then there are two characters or 4 bytes of length 660 * data encoded. In that case, drop the high bit of the first character and 661 * add it together with the next character. 662 */ 663static inline size_t 664decodeLength(const uint16_t** str) 665{ 666 size_t len = **str; 667 if ((len & 0x8000) != 0) { 668 (*str)++; 669 len = ((len & 0x7FFF) << 16) | **str; 670 } 671 (*str)++; 672 return len; 673} 674 675/** 676 * Strings in UTF-8 format have length indicated by a length encoded in the 677 * stored data. It is either 1 or 2 characters of length data. This allows a 678 * maximum length of 0x7FFF (32767 bytes), but you should consider storing 679 * text in another way if you're using that much data in a single string. 680 * 681 * If the high bit is set, then there are two characters or 2 bytes of length 682 * data encoded. In that case, drop the high bit of the first character and 683 * add it together with the next character. 684 */ 685static inline size_t 686decodeLength(const uint8_t** str) 687{ 688 size_t len = **str; 689 if ((len & 0x80) != 0) { 690 (*str)++; 691 len = ((len & 0x7F) << 8) | **str; 692 } 693 (*str)++; 694 return len; 695} 696 697const char16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const 698{ 699 if (mError == NO_ERROR && idx < mHeader->stringCount) { 700 const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0; 701 const uint32_t off = mEntries[idx]/(isUTF8?sizeof(uint8_t):sizeof(uint16_t)); 702 if (off < (mStringPoolSize-1)) { 703 if (!isUTF8) { 704 const uint16_t* strings = (uint16_t*)mStrings; 705 const uint16_t* str = strings+off; 706 707 *u16len = decodeLength(&str); 708 if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) { 709 // Reject malformed (non null-terminated) strings 710 if (str[*u16len] != 0x0000) { 711 ALOGW("Bad string block: string #%d is not null-terminated", 712 (int)idx); 713 return NULL; 714 } 715 return reinterpret_cast<const char16_t*>(str); 716 } else { 717 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 718 (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize); 719 } 720 } else { 721 const uint8_t* strings = (uint8_t*)mStrings; 722 const uint8_t* u8str = strings+off; 723 724 *u16len = decodeLength(&u8str); 725 size_t u8len = decodeLength(&u8str); 726 727 // encLen must be less than 0x7FFF due to encoding. 728 if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) { 729 AutoMutex lock(mDecodeLock); 730 731 if (mCache == NULL) { 732#ifndef __ANDROID__ 733 if (kDebugStringPoolNoisy) { 734 ALOGI("CREATING STRING CACHE OF %zu bytes", 735 mHeader->stringCount*sizeof(char16_t**)); 736 } 737#else 738 // We do not want to be in this case when actually running Android. 739 ALOGW("CREATING STRING CACHE OF %zu bytes", 740 static_cast<size_t>(mHeader->stringCount*sizeof(char16_t**))); 741#endif 742 mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**)); 743 if (mCache == NULL) { 744 ALOGW("No memory trying to allocate decode cache table of %d bytes\n", 745 (int)(mHeader->stringCount*sizeof(char16_t**))); 746 return NULL; 747 } 748 } 749 750 if (mCache[idx] != NULL) { 751 return mCache[idx]; 752 } 753 754 ssize_t actualLen = utf8_to_utf16_length(u8str, u8len); 755 if (actualLen < 0 || (size_t)actualLen != *u16len) { 756 ALOGW("Bad string block: string #%lld decoded length is not correct " 757 "%lld vs %llu\n", 758 (long long)idx, (long long)actualLen, (long long)*u16len); 759 return NULL; 760 } 761 762 // Reject malformed (non null-terminated) strings 763 if (u8str[u8len] != 0x00) { 764 ALOGW("Bad string block: string #%d is not null-terminated", 765 (int)idx); 766 return NULL; 767 } 768 769 char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t)); 770 if (!u16str) { 771 ALOGW("No memory when trying to allocate decode cache for string #%d\n", 772 (int)idx); 773 return NULL; 774 } 775 776 if (kDebugStringPoolNoisy) { 777 ALOGI("Caching UTF8 string: %s", u8str); 778 } 779 utf8_to_utf16(u8str, u8len, u16str); 780 mCache[idx] = u16str; 781 return u16str; 782 } else { 783 ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n", 784 (long long)idx, (long long)(u8str+u8len-strings), 785 (long long)mStringPoolSize); 786 } 787 } 788 } else { 789 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 790 (int)idx, (int)(off*sizeof(uint16_t)), 791 (int)(mStringPoolSize*sizeof(uint16_t))); 792 } 793 } 794 return NULL; 795} 796 797const char* ResStringPool::string8At(size_t idx, size_t* outLen) const 798{ 799 if (mError == NO_ERROR && idx < mHeader->stringCount) { 800 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) { 801 return NULL; 802 } 803 const uint32_t off = mEntries[idx]/sizeof(char); 804 if (off < (mStringPoolSize-1)) { 805 const uint8_t* strings = (uint8_t*)mStrings; 806 const uint8_t* str = strings+off; 807 *outLen = decodeLength(&str); 808 size_t encLen = decodeLength(&str); 809 if ((uint32_t)(str+encLen-strings) < mStringPoolSize) { 810 return (const char*)str; 811 } else { 812 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 813 (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize); 814 } 815 } else { 816 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 817 (int)idx, (int)(off*sizeof(uint16_t)), 818 (int)(mStringPoolSize*sizeof(uint16_t))); 819 } 820 } 821 return NULL; 822} 823 824const String8 ResStringPool::string8ObjectAt(size_t idx) const 825{ 826 size_t len; 827 const char *str = string8At(idx, &len); 828 if (str != NULL) { 829 return String8(str, len); 830 } 831 832 const char16_t *str16 = stringAt(idx, &len); 833 if (str16 != NULL) { 834 return String8(str16, len); 835 } 836 return String8(); 837} 838 839const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const 840{ 841 return styleAt(ref.index); 842} 843 844const ResStringPool_span* ResStringPool::styleAt(size_t idx) const 845{ 846 if (mError == NO_ERROR && idx < mHeader->styleCount) { 847 const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t)); 848 if (off < mStylePoolSize) { 849 return (const ResStringPool_span*)(mStyles+off); 850 } else { 851 ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n", 852 (int)idx, (int)(off*sizeof(uint32_t)), 853 (int)(mStylePoolSize*sizeof(uint32_t))); 854 } 855 } 856 return NULL; 857} 858 859ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const 860{ 861 if (mError != NO_ERROR) { 862 return mError; 863 } 864 865 size_t len; 866 867 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) { 868 if (kDebugStringPoolNoisy) { 869 ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()); 870 } 871 872 // The string pool contains UTF 8 strings; we don't want to cause 873 // temporary UTF-16 strings to be created as we search. 874 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 875 // Do a binary search for the string... this is a little tricky, 876 // because the strings are sorted with strzcmp16(). So to match 877 // the ordering, we need to convert strings in the pool to UTF-16. 878 // But we don't want to hit the cache, so instead we will have a 879 // local temporary allocation for the conversions. 880 char16_t* convBuffer = (char16_t*)malloc(strLen+4); 881 ssize_t l = 0; 882 ssize_t h = mHeader->stringCount-1; 883 884 ssize_t mid; 885 while (l <= h) { 886 mid = l + (h - l)/2; 887 const uint8_t* s = (const uint8_t*)string8At(mid, &len); 888 int c; 889 if (s != NULL) { 890 char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3); 891 *end = 0; 892 c = strzcmp16(convBuffer, end-convBuffer, str, strLen); 893 } else { 894 c = -1; 895 } 896 if (kDebugStringPoolNoisy) { 897 ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 898 (const char*)s, c, (int)l, (int)mid, (int)h); 899 } 900 if (c == 0) { 901 if (kDebugStringPoolNoisy) { 902 ALOGI("MATCH!"); 903 } 904 free(convBuffer); 905 return mid; 906 } else if (c < 0) { 907 l = mid + 1; 908 } else { 909 h = mid - 1; 910 } 911 } 912 free(convBuffer); 913 } else { 914 // It is unusual to get the ID from an unsorted string block... 915 // most often this happens because we want to get IDs for style 916 // span tags; since those always appear at the end of the string 917 // block, start searching at the back. 918 String8 str8(str, strLen); 919 const size_t str8Len = str8.size(); 920 for (int i=mHeader->stringCount-1; i>=0; i--) { 921 const char* s = string8At(i, &len); 922 if (kDebugStringPoolNoisy) { 923 ALOGI("Looking at %s, i=%d\n", String8(s).string(), i); 924 } 925 if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) { 926 if (kDebugStringPoolNoisy) { 927 ALOGI("MATCH!"); 928 } 929 return i; 930 } 931 } 932 } 933 934 } else { 935 if (kDebugStringPoolNoisy) { 936 ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()); 937 } 938 939 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 940 // Do a binary search for the string... 941 ssize_t l = 0; 942 ssize_t h = mHeader->stringCount-1; 943 944 ssize_t mid; 945 while (l <= h) { 946 mid = l + (h - l)/2; 947 const char16_t* s = stringAt(mid, &len); 948 int c = s ? strzcmp16(s, len, str, strLen) : -1; 949 if (kDebugStringPoolNoisy) { 950 ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 951 String8(s).string(), c, (int)l, (int)mid, (int)h); 952 } 953 if (c == 0) { 954 if (kDebugStringPoolNoisy) { 955 ALOGI("MATCH!"); 956 } 957 return mid; 958 } else if (c < 0) { 959 l = mid + 1; 960 } else { 961 h = mid - 1; 962 } 963 } 964 } else { 965 // It is unusual to get the ID from an unsorted string block... 966 // most often this happens because we want to get IDs for style 967 // span tags; since those always appear at the end of the string 968 // block, start searching at the back. 969 for (int i=mHeader->stringCount-1; i>=0; i--) { 970 const char16_t* s = stringAt(i, &len); 971 if (kDebugStringPoolNoisy) { 972 ALOGI("Looking at %s, i=%d\n", String8(s).string(), i); 973 } 974 if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) { 975 if (kDebugStringPoolNoisy) { 976 ALOGI("MATCH!"); 977 } 978 return i; 979 } 980 } 981 } 982 } 983 984 return NAME_NOT_FOUND; 985} 986 987size_t ResStringPool::size() const 988{ 989 return (mError == NO_ERROR) ? mHeader->stringCount : 0; 990} 991 992size_t ResStringPool::styleCount() const 993{ 994 return (mError == NO_ERROR) ? mHeader->styleCount : 0; 995} 996 997size_t ResStringPool::bytes() const 998{ 999 return (mError == NO_ERROR) ? mHeader->header.size : 0; 1000} 1001 1002bool ResStringPool::isSorted() const 1003{ 1004 return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0; 1005} 1006 1007bool ResStringPool::isUTF8() const 1008{ 1009 return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0; 1010} 1011 1012// -------------------------------------------------------------------- 1013// -------------------------------------------------------------------- 1014// -------------------------------------------------------------------- 1015 1016ResXMLParser::ResXMLParser(const ResXMLTree& tree) 1017 : mTree(tree), mEventCode(BAD_DOCUMENT) 1018{ 1019} 1020 1021void ResXMLParser::restart() 1022{ 1023 mCurNode = NULL; 1024 mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT; 1025} 1026const ResStringPool& ResXMLParser::getStrings() const 1027{ 1028 return mTree.mStrings; 1029} 1030 1031ResXMLParser::event_code_t ResXMLParser::getEventType() const 1032{ 1033 return mEventCode; 1034} 1035 1036ResXMLParser::event_code_t ResXMLParser::next() 1037{ 1038 if (mEventCode == START_DOCUMENT) { 1039 mCurNode = mTree.mRootNode; 1040 mCurExt = mTree.mRootExt; 1041 return (mEventCode=mTree.mRootCode); 1042 } else if (mEventCode >= FIRST_CHUNK_CODE) { 1043 return nextNode(); 1044 } 1045 return mEventCode; 1046} 1047 1048int32_t ResXMLParser::getCommentID() const 1049{ 1050 return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1; 1051} 1052 1053const char16_t* ResXMLParser::getComment(size_t* outLen) const 1054{ 1055 int32_t id = getCommentID(); 1056 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1057} 1058 1059uint32_t ResXMLParser::getLineNumber() const 1060{ 1061 return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1; 1062} 1063 1064int32_t ResXMLParser::getTextID() const 1065{ 1066 if (mEventCode == TEXT) { 1067 return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index); 1068 } 1069 return -1; 1070} 1071 1072const char16_t* ResXMLParser::getText(size_t* outLen) const 1073{ 1074 int32_t id = getTextID(); 1075 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1076} 1077 1078ssize_t ResXMLParser::getTextValue(Res_value* outValue) const 1079{ 1080 if (mEventCode == TEXT) { 1081 outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData); 1082 return sizeof(Res_value); 1083 } 1084 return BAD_TYPE; 1085} 1086 1087int32_t ResXMLParser::getNamespacePrefixID() const 1088{ 1089 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 1090 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index); 1091 } 1092 return -1; 1093} 1094 1095const char16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const 1096{ 1097 int32_t id = getNamespacePrefixID(); 1098 //printf("prefix=%d event=%p\n", id, mEventCode); 1099 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1100} 1101 1102int32_t ResXMLParser::getNamespaceUriID() const 1103{ 1104 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 1105 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index); 1106 } 1107 return -1; 1108} 1109 1110const char16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const 1111{ 1112 int32_t id = getNamespaceUriID(); 1113 //printf("uri=%d event=%p\n", id, mEventCode); 1114 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1115} 1116 1117int32_t ResXMLParser::getElementNamespaceID() const 1118{ 1119 if (mEventCode == START_TAG) { 1120 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index); 1121 } 1122 if (mEventCode == END_TAG) { 1123 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index); 1124 } 1125 return -1; 1126} 1127 1128const char16_t* ResXMLParser::getElementNamespace(size_t* outLen) const 1129{ 1130 int32_t id = getElementNamespaceID(); 1131 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1132} 1133 1134int32_t ResXMLParser::getElementNameID() const 1135{ 1136 if (mEventCode == START_TAG) { 1137 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index); 1138 } 1139 if (mEventCode == END_TAG) { 1140 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index); 1141 } 1142 return -1; 1143} 1144 1145const char16_t* ResXMLParser::getElementName(size_t* outLen) const 1146{ 1147 int32_t id = getElementNameID(); 1148 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1149} 1150 1151size_t ResXMLParser::getAttributeCount() const 1152{ 1153 if (mEventCode == START_TAG) { 1154 return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount); 1155 } 1156 return 0; 1157} 1158 1159int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const 1160{ 1161 if (mEventCode == START_TAG) { 1162 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1163 if (idx < dtohs(tag->attributeCount)) { 1164 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1165 (((const uint8_t*)tag) 1166 + dtohs(tag->attributeStart) 1167 + (dtohs(tag->attributeSize)*idx)); 1168 return dtohl(attr->ns.index); 1169 } 1170 } 1171 return -2; 1172} 1173 1174const char16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const 1175{ 1176 int32_t id = getAttributeNamespaceID(idx); 1177 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 1178 if (kDebugXMLNoisy) { 1179 printf("getAttributeNamespace 0x%zx=0x%x\n", idx, id); 1180 } 1181 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1182} 1183 1184const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const 1185{ 1186 int32_t id = getAttributeNamespaceID(idx); 1187 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 1188 if (kDebugXMLNoisy) { 1189 printf("getAttributeNamespace 0x%zx=0x%x\n", idx, id); 1190 } 1191 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL; 1192} 1193 1194int32_t ResXMLParser::getAttributeNameID(size_t idx) const 1195{ 1196 if (mEventCode == START_TAG) { 1197 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1198 if (idx < dtohs(tag->attributeCount)) { 1199 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1200 (((const uint8_t*)tag) 1201 + dtohs(tag->attributeStart) 1202 + (dtohs(tag->attributeSize)*idx)); 1203 return dtohl(attr->name.index); 1204 } 1205 } 1206 return -1; 1207} 1208 1209const char16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const 1210{ 1211 int32_t id = getAttributeNameID(idx); 1212 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 1213 if (kDebugXMLNoisy) { 1214 printf("getAttributeName 0x%zx=0x%x\n", idx, id); 1215 } 1216 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1217} 1218 1219const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const 1220{ 1221 int32_t id = getAttributeNameID(idx); 1222 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 1223 if (kDebugXMLNoisy) { 1224 printf("getAttributeName 0x%zx=0x%x\n", idx, id); 1225 } 1226 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL; 1227} 1228 1229uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const 1230{ 1231 int32_t id = getAttributeNameID(idx); 1232 if (id >= 0 && (size_t)id < mTree.mNumResIds) { 1233 uint32_t resId = dtohl(mTree.mResIds[id]); 1234 if (mTree.mDynamicRefTable != NULL) { 1235 mTree.mDynamicRefTable->lookupResourceId(&resId); 1236 } 1237 return resId; 1238 } 1239 return 0; 1240} 1241 1242int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const 1243{ 1244 if (mEventCode == START_TAG) { 1245 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1246 if (idx < dtohs(tag->attributeCount)) { 1247 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1248 (((const uint8_t*)tag) 1249 + dtohs(tag->attributeStart) 1250 + (dtohs(tag->attributeSize)*idx)); 1251 return dtohl(attr->rawValue.index); 1252 } 1253 } 1254 return -1; 1255} 1256 1257const char16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const 1258{ 1259 int32_t id = getAttributeValueStringID(idx); 1260 if (kDebugXMLNoisy) { 1261 printf("getAttributeValue 0x%zx=0x%x\n", idx, id); 1262 } 1263 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1264} 1265 1266int32_t ResXMLParser::getAttributeDataType(size_t idx) const 1267{ 1268 if (mEventCode == START_TAG) { 1269 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1270 if (idx < dtohs(tag->attributeCount)) { 1271 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1272 (((const uint8_t*)tag) 1273 + dtohs(tag->attributeStart) 1274 + (dtohs(tag->attributeSize)*idx)); 1275 uint8_t type = attr->typedValue.dataType; 1276 if (type != Res_value::TYPE_DYNAMIC_REFERENCE) { 1277 return type; 1278 } 1279 1280 // This is a dynamic reference. We adjust those references 1281 // to regular references at this level, so lie to the caller. 1282 return Res_value::TYPE_REFERENCE; 1283 } 1284 } 1285 return Res_value::TYPE_NULL; 1286} 1287 1288int32_t ResXMLParser::getAttributeData(size_t idx) const 1289{ 1290 if (mEventCode == START_TAG) { 1291 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1292 if (idx < dtohs(tag->attributeCount)) { 1293 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1294 (((const uint8_t*)tag) 1295 + dtohs(tag->attributeStart) 1296 + (dtohs(tag->attributeSize)*idx)); 1297 if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE || 1298 mTree.mDynamicRefTable == NULL) { 1299 return dtohl(attr->typedValue.data); 1300 } 1301 1302 uint32_t data = dtohl(attr->typedValue.data); 1303 if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) { 1304 return data; 1305 } 1306 } 1307 } 1308 return 0; 1309} 1310 1311ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const 1312{ 1313 if (mEventCode == START_TAG) { 1314 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1315 if (idx < dtohs(tag->attributeCount)) { 1316 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1317 (((const uint8_t*)tag) 1318 + dtohs(tag->attributeStart) 1319 + (dtohs(tag->attributeSize)*idx)); 1320 outValue->copyFrom_dtoh(attr->typedValue); 1321 if (mTree.mDynamicRefTable != NULL && 1322 mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) { 1323 return BAD_TYPE; 1324 } 1325 return sizeof(Res_value); 1326 } 1327 } 1328 return BAD_TYPE; 1329} 1330 1331ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const 1332{ 1333 String16 nsStr(ns != NULL ? ns : ""); 1334 String16 attrStr(attr); 1335 return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0, 1336 attrStr.string(), attrStr.size()); 1337} 1338 1339ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen, 1340 const char16_t* attr, size_t attrLen) const 1341{ 1342 if (mEventCode == START_TAG) { 1343 if (attr == NULL) { 1344 return NAME_NOT_FOUND; 1345 } 1346 const size_t N = getAttributeCount(); 1347 if (mTree.mStrings.isUTF8()) { 1348 String8 ns8, attr8; 1349 if (ns != NULL) { 1350 ns8 = String8(ns, nsLen); 1351 } 1352 attr8 = String8(attr, attrLen); 1353 if (kDebugStringPoolNoisy) { 1354 ALOGI("indexOfAttribute UTF8 %s (%zu) / %s (%zu)", ns8.string(), nsLen, 1355 attr8.string(), attrLen); 1356 } 1357 for (size_t i=0; i<N; i++) { 1358 size_t curNsLen = 0, curAttrLen = 0; 1359 const char* curNs = getAttributeNamespace8(i, &curNsLen); 1360 const char* curAttr = getAttributeName8(i, &curAttrLen); 1361 if (kDebugStringPoolNoisy) { 1362 ALOGI(" curNs=%s (%zu), curAttr=%s (%zu)", curNs, curNsLen, curAttr, curAttrLen); 1363 } 1364 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen 1365 && memcmp(attr8.string(), curAttr, attrLen) == 0) { 1366 if (ns == NULL) { 1367 if (curNs == NULL) { 1368 if (kDebugStringPoolNoisy) { 1369 ALOGI(" FOUND!"); 1370 } 1371 return i; 1372 } 1373 } else if (curNs != NULL) { 1374 //printf(" --> ns=%s, curNs=%s\n", 1375 // String8(ns).string(), String8(curNs).string()); 1376 if (memcmp(ns8.string(), curNs, nsLen) == 0) { 1377 if (kDebugStringPoolNoisy) { 1378 ALOGI(" FOUND!"); 1379 } 1380 return i; 1381 } 1382 } 1383 } 1384 } 1385 } else { 1386 if (kDebugStringPoolNoisy) { 1387 ALOGI("indexOfAttribute UTF16 %s (%zu) / %s (%zu)", 1388 String8(ns, nsLen).string(), nsLen, 1389 String8(attr, attrLen).string(), attrLen); 1390 } 1391 for (size_t i=0; i<N; i++) { 1392 size_t curNsLen = 0, curAttrLen = 0; 1393 const char16_t* curNs = getAttributeNamespace(i, &curNsLen); 1394 const char16_t* curAttr = getAttributeName(i, &curAttrLen); 1395 if (kDebugStringPoolNoisy) { 1396 ALOGI(" curNs=%s (%zu), curAttr=%s (%zu)", 1397 String8(curNs, curNsLen).string(), curNsLen, 1398 String8(curAttr, curAttrLen).string(), curAttrLen); 1399 } 1400 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen 1401 && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) { 1402 if (ns == NULL) { 1403 if (curNs == NULL) { 1404 if (kDebugStringPoolNoisy) { 1405 ALOGI(" FOUND!"); 1406 } 1407 return i; 1408 } 1409 } else if (curNs != NULL) { 1410 //printf(" --> ns=%s, curNs=%s\n", 1411 // String8(ns).string(), String8(curNs).string()); 1412 if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) { 1413 if (kDebugStringPoolNoisy) { 1414 ALOGI(" FOUND!"); 1415 } 1416 return i; 1417 } 1418 } 1419 } 1420 } 1421 } 1422 } 1423 1424 return NAME_NOT_FOUND; 1425} 1426 1427ssize_t ResXMLParser::indexOfID() const 1428{ 1429 if (mEventCode == START_TAG) { 1430 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex); 1431 if (idx > 0) return (idx-1); 1432 } 1433 return NAME_NOT_FOUND; 1434} 1435 1436ssize_t ResXMLParser::indexOfClass() const 1437{ 1438 if (mEventCode == START_TAG) { 1439 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex); 1440 if (idx > 0) return (idx-1); 1441 } 1442 return NAME_NOT_FOUND; 1443} 1444 1445ssize_t ResXMLParser::indexOfStyle() const 1446{ 1447 if (mEventCode == START_TAG) { 1448 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex); 1449 if (idx > 0) return (idx-1); 1450 } 1451 return NAME_NOT_FOUND; 1452} 1453 1454ResXMLParser::event_code_t ResXMLParser::nextNode() 1455{ 1456 if (mEventCode < 0) { 1457 return mEventCode; 1458 } 1459 1460 do { 1461 const ResXMLTree_node* next = (const ResXMLTree_node*) 1462 (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size)); 1463 if (kDebugXMLNoisy) { 1464 ALOGI("Next node: prev=%p, next=%p\n", mCurNode, next); 1465 } 1466 1467 if (((const uint8_t*)next) >= mTree.mDataEnd) { 1468 mCurNode = NULL; 1469 return (mEventCode=END_DOCUMENT); 1470 } 1471 1472 if (mTree.validateNode(next) != NO_ERROR) { 1473 mCurNode = NULL; 1474 return (mEventCode=BAD_DOCUMENT); 1475 } 1476 1477 mCurNode = next; 1478 const uint16_t headerSize = dtohs(next->header.headerSize); 1479 const uint32_t totalSize = dtohl(next->header.size); 1480 mCurExt = ((const uint8_t*)next) + headerSize; 1481 size_t minExtSize = 0; 1482 event_code_t eventCode = (event_code_t)dtohs(next->header.type); 1483 switch ((mEventCode=eventCode)) { 1484 case RES_XML_START_NAMESPACE_TYPE: 1485 case RES_XML_END_NAMESPACE_TYPE: 1486 minExtSize = sizeof(ResXMLTree_namespaceExt); 1487 break; 1488 case RES_XML_START_ELEMENT_TYPE: 1489 minExtSize = sizeof(ResXMLTree_attrExt); 1490 break; 1491 case RES_XML_END_ELEMENT_TYPE: 1492 minExtSize = sizeof(ResXMLTree_endElementExt); 1493 break; 1494 case RES_XML_CDATA_TYPE: 1495 minExtSize = sizeof(ResXMLTree_cdataExt); 1496 break; 1497 default: 1498 ALOGW("Unknown XML block: header type %d in node at %d\n", 1499 (int)dtohs(next->header.type), 1500 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader))); 1501 continue; 1502 } 1503 1504 if ((totalSize-headerSize) < minExtSize) { 1505 ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n", 1506 (int)dtohs(next->header.type), 1507 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)), 1508 (int)(totalSize-headerSize), (int)minExtSize); 1509 return (mEventCode=BAD_DOCUMENT); 1510 } 1511 1512 //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n", 1513 // mCurNode, mCurExt, headerSize, minExtSize); 1514 1515 return eventCode; 1516 } while (true); 1517} 1518 1519void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const 1520{ 1521 pos->eventCode = mEventCode; 1522 pos->curNode = mCurNode; 1523 pos->curExt = mCurExt; 1524} 1525 1526void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos) 1527{ 1528 mEventCode = pos.eventCode; 1529 mCurNode = pos.curNode; 1530 mCurExt = pos.curExt; 1531} 1532 1533// -------------------------------------------------------------------- 1534 1535static volatile int32_t gCount = 0; 1536 1537ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable) 1538 : ResXMLParser(*this) 1539 , mDynamicRefTable(dynamicRefTable) 1540 , mError(NO_INIT), mOwnedData(NULL) 1541{ 1542 if (kDebugResXMLTree) { 1543 ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1544 } 1545 restart(); 1546} 1547 1548ResXMLTree::ResXMLTree() 1549 : ResXMLParser(*this) 1550 , mDynamicRefTable(NULL) 1551 , mError(NO_INIT), mOwnedData(NULL) 1552{ 1553 if (kDebugResXMLTree) { 1554 ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1555 } 1556 restart(); 1557} 1558 1559ResXMLTree::~ResXMLTree() 1560{ 1561 if (kDebugResXMLTree) { 1562 ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1); 1563 } 1564 uninit(); 1565} 1566 1567status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData) 1568{ 1569 uninit(); 1570 mEventCode = START_DOCUMENT; 1571 1572 if (!data || !size) { 1573 return (mError=BAD_TYPE); 1574 } 1575 1576 if (copyData) { 1577 mOwnedData = malloc(size); 1578 if (mOwnedData == NULL) { 1579 return (mError=NO_MEMORY); 1580 } 1581 memcpy(mOwnedData, data, size); 1582 data = mOwnedData; 1583 } 1584 1585 mHeader = (const ResXMLTree_header*)data; 1586 mSize = dtohl(mHeader->header.size); 1587 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) { 1588 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n", 1589 (int)dtohs(mHeader->header.headerSize), 1590 (int)dtohl(mHeader->header.size), (int)size); 1591 mError = BAD_TYPE; 1592 restart(); 1593 return mError; 1594 } 1595 mDataEnd = ((const uint8_t*)mHeader) + mSize; 1596 1597 mStrings.uninit(); 1598 mRootNode = NULL; 1599 mResIds = NULL; 1600 mNumResIds = 0; 1601 1602 // First look for a couple interesting chunks: the string block 1603 // and first XML node. 1604 const ResChunk_header* chunk = 1605 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize)); 1606 const ResChunk_header* lastChunk = chunk; 1607 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) && 1608 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) { 1609 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML"); 1610 if (err != NO_ERROR) { 1611 mError = err; 1612 goto done; 1613 } 1614 const uint16_t type = dtohs(chunk->type); 1615 const size_t size = dtohl(chunk->size); 1616 if (kDebugXMLNoisy) { 1617 printf("Scanning @ %p: type=0x%x, size=0x%zx\n", 1618 (void*)(((uintptr_t)chunk)-((uintptr_t)mHeader)), type, size); 1619 } 1620 if (type == RES_STRING_POOL_TYPE) { 1621 mStrings.setTo(chunk, size); 1622 } else if (type == RES_XML_RESOURCE_MAP_TYPE) { 1623 mResIds = (const uint32_t*) 1624 (((const uint8_t*)chunk)+dtohs(chunk->headerSize)); 1625 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t); 1626 } else if (type >= RES_XML_FIRST_CHUNK_TYPE 1627 && type <= RES_XML_LAST_CHUNK_TYPE) { 1628 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) { 1629 mError = BAD_TYPE; 1630 goto done; 1631 } 1632 mCurNode = (const ResXMLTree_node*)lastChunk; 1633 if (nextNode() == BAD_DOCUMENT) { 1634 mError = BAD_TYPE; 1635 goto done; 1636 } 1637 mRootNode = mCurNode; 1638 mRootExt = mCurExt; 1639 mRootCode = mEventCode; 1640 break; 1641 } else { 1642 if (kDebugXMLNoisy) { 1643 printf("Skipping unknown chunk!\n"); 1644 } 1645 } 1646 lastChunk = chunk; 1647 chunk = (const ResChunk_header*) 1648 (((const uint8_t*)chunk) + size); 1649 } 1650 1651 if (mRootNode == NULL) { 1652 ALOGW("Bad XML block: no root element node found\n"); 1653 mError = BAD_TYPE; 1654 goto done; 1655 } 1656 1657 mError = mStrings.getError(); 1658 1659done: 1660 restart(); 1661 return mError; 1662} 1663 1664status_t ResXMLTree::getError() const 1665{ 1666 return mError; 1667} 1668 1669void ResXMLTree::uninit() 1670{ 1671 mError = NO_INIT; 1672 mStrings.uninit(); 1673 if (mOwnedData) { 1674 free(mOwnedData); 1675 mOwnedData = NULL; 1676 } 1677 restart(); 1678} 1679 1680status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const 1681{ 1682 const uint16_t eventCode = dtohs(node->header.type); 1683 1684 status_t err = validate_chunk( 1685 &node->header, sizeof(ResXMLTree_node), 1686 mDataEnd, "ResXMLTree_node"); 1687 1688 if (err >= NO_ERROR) { 1689 // Only perform additional validation on START nodes 1690 if (eventCode != RES_XML_START_ELEMENT_TYPE) { 1691 return NO_ERROR; 1692 } 1693 1694 const uint16_t headerSize = dtohs(node->header.headerSize); 1695 const uint32_t size = dtohl(node->header.size); 1696 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*) 1697 (((const uint8_t*)node) + headerSize); 1698 // check for sensical values pulled out of the stream so far... 1699 if ((size >= headerSize + sizeof(ResXMLTree_attrExt)) 1700 && ((void*)attrExt > (void*)node)) { 1701 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize)) 1702 * dtohs(attrExt->attributeCount); 1703 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) { 1704 return NO_ERROR; 1705 } 1706 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1707 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize), 1708 (unsigned int)(size-headerSize)); 1709 } 1710 else { 1711 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n", 1712 (unsigned int)headerSize, (unsigned int)size); 1713 } 1714 return BAD_TYPE; 1715 } 1716 1717 return err; 1718 1719#if 0 1720 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE; 1721 1722 const uint16_t headerSize = dtohs(node->header.headerSize); 1723 const uint32_t size = dtohl(node->header.size); 1724 1725 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) { 1726 if (size >= headerSize) { 1727 if (((const uint8_t*)node) <= (mDataEnd-size)) { 1728 if (!isStart) { 1729 return NO_ERROR; 1730 } 1731 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount)) 1732 <= (size-headerSize)) { 1733 return NO_ERROR; 1734 } 1735 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1736 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount), 1737 (int)(size-headerSize)); 1738 return BAD_TYPE; 1739 } 1740 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n", 1741 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize); 1742 return BAD_TYPE; 1743 } 1744 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n", 1745 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1746 (int)headerSize, (int)size); 1747 return BAD_TYPE; 1748 } 1749 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n", 1750 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1751 (int)headerSize); 1752 return BAD_TYPE; 1753#endif 1754} 1755 1756// -------------------------------------------------------------------- 1757// -------------------------------------------------------------------- 1758// -------------------------------------------------------------------- 1759 1760void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) { 1761 const size_t size = dtohl(o.size); 1762 if (size >= sizeof(ResTable_config)) { 1763 *this = o; 1764 } else { 1765 memcpy(this, &o, size); 1766 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size); 1767 } 1768} 1769 1770/* static */ size_t unpackLanguageOrRegion(const char in[2], const char base, 1771 char out[4]) { 1772 if (in[0] & 0x80) { 1773 // The high bit is "1", which means this is a packed three letter 1774 // language code. 1775 1776 // The smallest 5 bits of the second char are the first alphabet. 1777 const uint8_t first = in[1] & 0x1f; 1778 // The last three bits of the second char and the first two bits 1779 // of the first char are the second alphabet. 1780 const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3); 1781 // Bits 3 to 7 (inclusive) of the first char are the third alphabet. 1782 const uint8_t third = (in[0] & 0x7c) >> 2; 1783 1784 out[0] = first + base; 1785 out[1] = second + base; 1786 out[2] = third + base; 1787 out[3] = 0; 1788 1789 return 3; 1790 } 1791 1792 if (in[0]) { 1793 memcpy(out, in, 2); 1794 memset(out + 2, 0, 2); 1795 return 2; 1796 } 1797 1798 memset(out, 0, 4); 1799 return 0; 1800} 1801 1802/* static */ void packLanguageOrRegion(const char* in, const char base, 1803 char out[2]) { 1804 if (in[2] == 0 || in[2] == '-') { 1805 out[0] = in[0]; 1806 out[1] = in[1]; 1807 } else { 1808 uint8_t first = (in[0] - base) & 0x007f; 1809 uint8_t second = (in[1] - base) & 0x007f; 1810 uint8_t third = (in[2] - base) & 0x007f; 1811 1812 out[0] = (0x80 | (third << 2) | (second >> 3)); 1813 out[1] = ((second << 5) | first); 1814 } 1815} 1816 1817 1818void ResTable_config::packLanguage(const char* language) { 1819 packLanguageOrRegion(language, 'a', this->language); 1820} 1821 1822void ResTable_config::packRegion(const char* region) { 1823 packLanguageOrRegion(region, '0', this->country); 1824} 1825 1826size_t ResTable_config::unpackLanguage(char language[4]) const { 1827 return unpackLanguageOrRegion(this->language, 'a', language); 1828} 1829 1830size_t ResTable_config::unpackRegion(char region[4]) const { 1831 return unpackLanguageOrRegion(this->country, '0', region); 1832} 1833 1834 1835void ResTable_config::copyFromDtoH(const ResTable_config& o) { 1836 copyFromDeviceNoSwap(o); 1837 size = sizeof(ResTable_config); 1838 mcc = dtohs(mcc); 1839 mnc = dtohs(mnc); 1840 density = dtohs(density); 1841 screenWidth = dtohs(screenWidth); 1842 screenHeight = dtohs(screenHeight); 1843 sdkVersion = dtohs(sdkVersion); 1844 minorVersion = dtohs(minorVersion); 1845 smallestScreenWidthDp = dtohs(smallestScreenWidthDp); 1846 screenWidthDp = dtohs(screenWidthDp); 1847 screenHeightDp = dtohs(screenHeightDp); 1848} 1849 1850void ResTable_config::swapHtoD() { 1851 size = htodl(size); 1852 mcc = htods(mcc); 1853 mnc = htods(mnc); 1854 density = htods(density); 1855 screenWidth = htods(screenWidth); 1856 screenHeight = htods(screenHeight); 1857 sdkVersion = htods(sdkVersion); 1858 minorVersion = htods(minorVersion); 1859 smallestScreenWidthDp = htods(smallestScreenWidthDp); 1860 screenWidthDp = htods(screenWidthDp); 1861 screenHeightDp = htods(screenHeightDp); 1862} 1863 1864/* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) { 1865 if (l.locale != r.locale) { 1866 // NOTE: This is the old behaviour with respect to comparison orders. 1867 // The diff value here doesn't make much sense (given our bit packing scheme) 1868 // but it's stable, and that's all we need. 1869 return l.locale - r.locale; 1870 } 1871 1872 // The language & region are equal, so compare the scripts and variants. 1873 const char emptyScript[sizeof(l.localeScript)] = {'\0', '\0', '\0', '\0'}; 1874 const char *lScript = l.localeScriptWasComputed ? emptyScript : l.localeScript; 1875 const char *rScript = r.localeScriptWasComputed ? emptyScript : r.localeScript; 1876 int script = memcmp(lScript, rScript, sizeof(l.localeScript)); 1877 if (script) { 1878 return script; 1879 } 1880 1881 // The language, region and script are equal, so compare variants. 1882 // 1883 // This should happen very infrequently (if at all.) 1884 return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant)); 1885} 1886 1887int ResTable_config::compare(const ResTable_config& o) const { 1888 int32_t diff = (int32_t)(imsi - o.imsi); 1889 if (diff != 0) return diff; 1890 diff = compareLocales(*this, o); 1891 if (diff != 0) return diff; 1892 diff = (int32_t)(screenType - o.screenType); 1893 if (diff != 0) return diff; 1894 diff = (int32_t)(input - o.input); 1895 if (diff != 0) return diff; 1896 diff = (int32_t)(screenSize - o.screenSize); 1897 if (diff != 0) return diff; 1898 diff = (int32_t)(version - o.version); 1899 if (diff != 0) return diff; 1900 diff = (int32_t)(screenLayout - o.screenLayout); 1901 if (diff != 0) return diff; 1902 diff = (int32_t)(screenLayout2 - o.screenLayout2); 1903 if (diff != 0) return diff; 1904 diff = (int32_t)(uiMode - o.uiMode); 1905 if (diff != 0) return diff; 1906 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp); 1907 if (diff != 0) return diff; 1908 diff = (int32_t)(screenSizeDp - o.screenSizeDp); 1909 return (int)diff; 1910} 1911 1912int ResTable_config::compareLogical(const ResTable_config& o) const { 1913 if (mcc != o.mcc) { 1914 return mcc < o.mcc ? -1 : 1; 1915 } 1916 if (mnc != o.mnc) { 1917 return mnc < o.mnc ? -1 : 1; 1918 } 1919 1920 int diff = compareLocales(*this, o); 1921 if (diff < 0) { 1922 return -1; 1923 } 1924 if (diff > 0) { 1925 return 1; 1926 } 1927 1928 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) { 1929 return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1; 1930 } 1931 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1932 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1; 1933 } 1934 if (screenWidthDp != o.screenWidthDp) { 1935 return screenWidthDp < o.screenWidthDp ? -1 : 1; 1936 } 1937 if (screenHeightDp != o.screenHeightDp) { 1938 return screenHeightDp < o.screenHeightDp ? -1 : 1; 1939 } 1940 if (screenWidth != o.screenWidth) { 1941 return screenWidth < o.screenWidth ? -1 : 1; 1942 } 1943 if (screenHeight != o.screenHeight) { 1944 return screenHeight < o.screenHeight ? -1 : 1; 1945 } 1946 if (density != o.density) { 1947 return density < o.density ? -1 : 1; 1948 } 1949 if (orientation != o.orientation) { 1950 return orientation < o.orientation ? -1 : 1; 1951 } 1952 if (touchscreen != o.touchscreen) { 1953 return touchscreen < o.touchscreen ? -1 : 1; 1954 } 1955 if (input != o.input) { 1956 return input < o.input ? -1 : 1; 1957 } 1958 if (screenLayout != o.screenLayout) { 1959 return screenLayout < o.screenLayout ? -1 : 1; 1960 } 1961 if (screenLayout2 != o.screenLayout2) { 1962 return screenLayout2 < o.screenLayout2 ? -1 : 1; 1963 } 1964 if (uiMode != o.uiMode) { 1965 return uiMode < o.uiMode ? -1 : 1; 1966 } 1967 if (version != o.version) { 1968 return version < o.version ? -1 : 1; 1969 } 1970 return 0; 1971} 1972 1973int ResTable_config::diff(const ResTable_config& o) const { 1974 int diffs = 0; 1975 if (mcc != o.mcc) diffs |= CONFIG_MCC; 1976 if (mnc != o.mnc) diffs |= CONFIG_MNC; 1977 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION; 1978 if (density != o.density) diffs |= CONFIG_DENSITY; 1979 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN; 1980 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0) 1981 diffs |= CONFIG_KEYBOARD_HIDDEN; 1982 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD; 1983 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION; 1984 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE; 1985 if (version != o.version) diffs |= CONFIG_VERSION; 1986 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR; 1987 if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT; 1988 if ((screenLayout2 & MASK_SCREENROUND) != (o.screenLayout2 & MASK_SCREENROUND)) diffs |= CONFIG_SCREEN_ROUND; 1989 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE; 1990 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE; 1991 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE; 1992 1993 const int diff = compareLocales(*this, o); 1994 if (diff) diffs |= CONFIG_LOCALE; 1995 1996 return diffs; 1997} 1998 1999int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const { 2000 if (locale || o.locale) { 2001 if (language[0] != o.language[0]) { 2002 if (!language[0]) return -1; 2003 if (!o.language[0]) return 1; 2004 } 2005 2006 if (country[0] != o.country[0]) { 2007 if (!country[0]) return -1; 2008 if (!o.country[0]) return 1; 2009 } 2010 } 2011 2012 // There isn't a well specified "importance" order between variants and 2013 // scripts. We can't easily tell whether, say "en-Latn-US" is more or less 2014 // specific than "en-US-POSIX". 2015 // 2016 // We therefore arbitrarily decide to give priority to variants over 2017 // scripts since it seems more useful to do so. We will consider 2018 // "en-US-POSIX" to be more specific than "en-Latn-US". 2019 2020 const int score = ((localeScript[0] != '\0' && !localeScriptWasComputed) ? 1 : 0) + 2021 ((localeVariant[0] != '\0') ? 2 : 0); 2022 2023 const int oScore = (o.localeScript[0] != '\0' && !o.localeScriptWasComputed ? 1 : 0) + 2024 ((o.localeVariant[0] != '\0') ? 2 : 0); 2025 2026 return score - oScore; 2027 2028} 2029 2030bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const { 2031 // The order of the following tests defines the importance of one 2032 // configuration parameter over another. Those tests first are more 2033 // important, trumping any values in those following them. 2034 if (imsi || o.imsi) { 2035 if (mcc != o.mcc) { 2036 if (!mcc) return false; 2037 if (!o.mcc) return true; 2038 } 2039 2040 if (mnc != o.mnc) { 2041 if (!mnc) return false; 2042 if (!o.mnc) return true; 2043 } 2044 } 2045 2046 if (locale || o.locale) { 2047 const int diff = isLocaleMoreSpecificThan(o); 2048 if (diff < 0) { 2049 return false; 2050 } 2051 2052 if (diff > 0) { 2053 return true; 2054 } 2055 } 2056 2057 if (screenLayout || o.screenLayout) { 2058 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) { 2059 if (!(screenLayout & MASK_LAYOUTDIR)) return false; 2060 if (!(o.screenLayout & MASK_LAYOUTDIR)) return true; 2061 } 2062 } 2063 2064 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 2065 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 2066 if (!smallestScreenWidthDp) return false; 2067 if (!o.smallestScreenWidthDp) return true; 2068 } 2069 } 2070 2071 if (screenSizeDp || o.screenSizeDp) { 2072 if (screenWidthDp != o.screenWidthDp) { 2073 if (!screenWidthDp) return false; 2074 if (!o.screenWidthDp) return true; 2075 } 2076 2077 if (screenHeightDp != o.screenHeightDp) { 2078 if (!screenHeightDp) return false; 2079 if (!o.screenHeightDp) return true; 2080 } 2081 } 2082 2083 if (screenLayout || o.screenLayout) { 2084 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) { 2085 if (!(screenLayout & MASK_SCREENSIZE)) return false; 2086 if (!(o.screenLayout & MASK_SCREENSIZE)) return true; 2087 } 2088 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) { 2089 if (!(screenLayout & MASK_SCREENLONG)) return false; 2090 if (!(o.screenLayout & MASK_SCREENLONG)) return true; 2091 } 2092 } 2093 2094 if (screenLayout2 || o.screenLayout2) { 2095 if (((screenLayout2^o.screenLayout2) & MASK_SCREENROUND) != 0) { 2096 if (!(screenLayout2 & MASK_SCREENROUND)) return false; 2097 if (!(o.screenLayout2 & MASK_SCREENROUND)) return true; 2098 } 2099 } 2100 2101 if (orientation != o.orientation) { 2102 if (!orientation) return false; 2103 if (!o.orientation) return true; 2104 } 2105 2106 if (uiMode || o.uiMode) { 2107 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) { 2108 if (!(uiMode & MASK_UI_MODE_TYPE)) return false; 2109 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true; 2110 } 2111 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) { 2112 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false; 2113 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true; 2114 } 2115 } 2116 2117 // density is never 'more specific' 2118 // as the default just equals 160 2119 2120 if (touchscreen != o.touchscreen) { 2121 if (!touchscreen) return false; 2122 if (!o.touchscreen) return true; 2123 } 2124 2125 if (input || o.input) { 2126 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) { 2127 if (!(inputFlags & MASK_KEYSHIDDEN)) return false; 2128 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true; 2129 } 2130 2131 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) { 2132 if (!(inputFlags & MASK_NAVHIDDEN)) return false; 2133 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true; 2134 } 2135 2136 if (keyboard != o.keyboard) { 2137 if (!keyboard) return false; 2138 if (!o.keyboard) return true; 2139 } 2140 2141 if (navigation != o.navigation) { 2142 if (!navigation) return false; 2143 if (!o.navigation) return true; 2144 } 2145 } 2146 2147 if (screenSize || o.screenSize) { 2148 if (screenWidth != o.screenWidth) { 2149 if (!screenWidth) return false; 2150 if (!o.screenWidth) return true; 2151 } 2152 2153 if (screenHeight != o.screenHeight) { 2154 if (!screenHeight) return false; 2155 if (!o.screenHeight) return true; 2156 } 2157 } 2158 2159 if (version || o.version) { 2160 if (sdkVersion != o.sdkVersion) { 2161 if (!sdkVersion) return false; 2162 if (!o.sdkVersion) return true; 2163 } 2164 2165 if (minorVersion != o.minorVersion) { 2166 if (!minorVersion) return false; 2167 if (!o.minorVersion) return true; 2168 } 2169 } 2170 return false; 2171} 2172 2173bool ResTable_config::isLocaleBetterThan(const ResTable_config& o, 2174 const ResTable_config* requested) const { 2175 if (requested->locale == 0) { 2176 // The request doesn't have a locale, so no resource is better 2177 // than the other. 2178 return false; 2179 } 2180 2181 if (locale == 0 && o.locale == 0) { 2182 // The locales parts of both resources are empty, so no one is better 2183 // than the other. 2184 return false; 2185 } 2186 2187 // Non-matching locales have been filtered out, so both resources 2188 // match the requested locale. 2189 // 2190 // Because of the locale-related checks in match() and the checks, we know 2191 // that: 2192 // 1) The resource languages are either empty or match the request; 2193 // and 2194 // 2) If the request's script is known, the resource scripts are either 2195 // unknown or match the request. 2196 2197 if (language[0] != o.language[0]) { 2198 // The languages of the two resources are not the same. We can only 2199 // assume that one of the two resources matched the request because one 2200 // doesn't have a language and the other has a matching language. 2201 // 2202 // We consider the one that has the language specified a better match. 2203 // 2204 // The exception is that we consider no-language resources a better match 2205 // for US English and similar locales than locales that are a descendant 2206 // of Internatinal English (en-001), since no-language resources are 2207 // where the US English resource have traditionally lived for most apps. 2208 if (requested->language[0] == 'e' && requested->language[1] == 'n') { 2209 if (requested->country[0] == 'U' && requested->country[1] == 'S') { 2210 // For US English itself, we consider a no-locale resource a 2211 // better match if the other resource has a country other than 2212 // US specified. 2213 if (language[0] != '\0') { 2214 return country[0] == '\0' || (country[0] == 'U' && country[1] == 'S'); 2215 } else { 2216 return !(o.country[0] == '\0' || (o.country[0] == 'U' && o.country[1] == 'S')); 2217 } 2218 } else if (localeDataIsCloseToUsEnglish(requested->country)) { 2219 if (language[0] != '\0') { 2220 return localeDataIsCloseToUsEnglish(country); 2221 } else { 2222 return !localeDataIsCloseToUsEnglish(o.country); 2223 } 2224 } 2225 } 2226 return (language[0] != '\0'); 2227 } 2228 2229 // If we are here, both the resources have the same non-empty language as 2230 // the request. 2231 // 2232 // Because the languages are the same, computeScript() always 2233 // returns a non-empty script for languages it knows about, and we have passed 2234 // the script checks in match(), the scripts are either all unknown or are 2235 // all the same. So we can't gain anything by checking the scripts. We need 2236 // to check the region and variant. 2237 2238 // See if any of the regions is better than the other 2239 const int region_comparison = localeDataCompareRegions( 2240 country, o.country, 2241 language, requested->localeScript, requested->country); 2242 if (region_comparison != 0) { 2243 return (region_comparison > 0); 2244 } 2245 2246 // The regions are the same. Try the variant. 2247 if (requested->localeVariant[0] != '\0' 2248 && strncmp(localeVariant, requested->localeVariant, sizeof(localeVariant)) == 0) { 2249 return (strncmp(o.localeVariant, requested->localeVariant, sizeof(localeVariant)) != 0); 2250 } 2251 2252 return false; 2253} 2254 2255bool ResTable_config::isBetterThan(const ResTable_config& o, 2256 const ResTable_config* requested) const { 2257 if (requested) { 2258 if (imsi || o.imsi) { 2259 if ((mcc != o.mcc) && requested->mcc) { 2260 return (mcc); 2261 } 2262 2263 if ((mnc != o.mnc) && requested->mnc) { 2264 return (mnc); 2265 } 2266 } 2267 2268 if (isLocaleBetterThan(o, requested)) { 2269 return true; 2270 } 2271 2272 if (screenLayout || o.screenLayout) { 2273 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0 2274 && (requested->screenLayout & MASK_LAYOUTDIR)) { 2275 int myLayoutDir = screenLayout & MASK_LAYOUTDIR; 2276 int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR; 2277 return (myLayoutDir > oLayoutDir); 2278 } 2279 } 2280 2281 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 2282 // The configuration closest to the actual size is best. 2283 // We assume that larger configs have already been filtered 2284 // out at this point. That means we just want the largest one. 2285 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 2286 return smallestScreenWidthDp > o.smallestScreenWidthDp; 2287 } 2288 } 2289 2290 if (screenSizeDp || o.screenSizeDp) { 2291 // "Better" is based on the sum of the difference between both 2292 // width and height from the requested dimensions. We are 2293 // assuming the invalid configs (with smaller dimens) have 2294 // already been filtered. Note that if a particular dimension 2295 // is unspecified, we will end up with a large value (the 2296 // difference between 0 and the requested dimension), which is 2297 // good since we will prefer a config that has specified a 2298 // dimension value. 2299 int myDelta = 0, otherDelta = 0; 2300 if (requested->screenWidthDp) { 2301 myDelta += requested->screenWidthDp - screenWidthDp; 2302 otherDelta += requested->screenWidthDp - o.screenWidthDp; 2303 } 2304 if (requested->screenHeightDp) { 2305 myDelta += requested->screenHeightDp - screenHeightDp; 2306 otherDelta += requested->screenHeightDp - o.screenHeightDp; 2307 } 2308 if (kDebugTableSuperNoisy) { 2309 ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d", 2310 screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp, 2311 requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta); 2312 } 2313 if (myDelta != otherDelta) { 2314 return myDelta < otherDelta; 2315 } 2316 } 2317 2318 if (screenLayout || o.screenLayout) { 2319 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0 2320 && (requested->screenLayout & MASK_SCREENSIZE)) { 2321 // A little backwards compatibility here: undefined is 2322 // considered equivalent to normal. But only if the 2323 // requested size is at least normal; otherwise, small 2324 // is better than the default. 2325 int mySL = (screenLayout & MASK_SCREENSIZE); 2326 int oSL = (o.screenLayout & MASK_SCREENSIZE); 2327 int fixedMySL = mySL; 2328 int fixedOSL = oSL; 2329 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) { 2330 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL; 2331 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL; 2332 } 2333 // For screen size, the best match is the one that is 2334 // closest to the requested screen size, but not over 2335 // (the not over part is dealt with in match() below). 2336 if (fixedMySL == fixedOSL) { 2337 // If the two are the same, but 'this' is actually 2338 // undefined, then the other is really a better match. 2339 if (mySL == 0) return false; 2340 return true; 2341 } 2342 if (fixedMySL != fixedOSL) { 2343 return fixedMySL > fixedOSL; 2344 } 2345 } 2346 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0 2347 && (requested->screenLayout & MASK_SCREENLONG)) { 2348 return (screenLayout & MASK_SCREENLONG); 2349 } 2350 } 2351 2352 if (screenLayout2 || o.screenLayout2) { 2353 if (((screenLayout2^o.screenLayout2) & MASK_SCREENROUND) != 0 && 2354 (requested->screenLayout2 & MASK_SCREENROUND)) { 2355 return screenLayout2 & MASK_SCREENROUND; 2356 } 2357 } 2358 2359 if ((orientation != o.orientation) && requested->orientation) { 2360 return (orientation); 2361 } 2362 2363 if (uiMode || o.uiMode) { 2364 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0 2365 && (requested->uiMode & MASK_UI_MODE_TYPE)) { 2366 return (uiMode & MASK_UI_MODE_TYPE); 2367 } 2368 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0 2369 && (requested->uiMode & MASK_UI_MODE_NIGHT)) { 2370 return (uiMode & MASK_UI_MODE_NIGHT); 2371 } 2372 } 2373 2374 if (screenType || o.screenType) { 2375 if (density != o.density) { 2376 // Use the system default density (DENSITY_MEDIUM, 160dpi) if none specified. 2377 const int thisDensity = density ? density : int(ResTable_config::DENSITY_MEDIUM); 2378 const int otherDensity = o.density ? o.density : int(ResTable_config::DENSITY_MEDIUM); 2379 2380 // We always prefer DENSITY_ANY over scaling a density bucket. 2381 if (thisDensity == ResTable_config::DENSITY_ANY) { 2382 return true; 2383 } else if (otherDensity == ResTable_config::DENSITY_ANY) { 2384 return false; 2385 } 2386 2387 int requestedDensity = requested->density; 2388 if (requested->density == 0 || 2389 requested->density == ResTable_config::DENSITY_ANY) { 2390 requestedDensity = ResTable_config::DENSITY_MEDIUM; 2391 } 2392 2393 // DENSITY_ANY is now dealt with. We should look to 2394 // pick a density bucket and potentially scale it. 2395 // Any density is potentially useful 2396 // because the system will scale it. Scaling down 2397 // is generally better than scaling up. 2398 int h = thisDensity; 2399 int l = otherDensity; 2400 bool bImBigger = true; 2401 if (l > h) { 2402 int t = h; 2403 h = l; 2404 l = t; 2405 bImBigger = false; 2406 } 2407 2408 if (requestedDensity >= h) { 2409 // requested value higher than both l and h, give h 2410 return bImBigger; 2411 } 2412 if (l >= requestedDensity) { 2413 // requested value lower than both l and h, give l 2414 return !bImBigger; 2415 } 2416 // saying that scaling down is 2x better than up 2417 if (((2 * l) - requestedDensity) * h > requestedDensity * requestedDensity) { 2418 return !bImBigger; 2419 } else { 2420 return bImBigger; 2421 } 2422 } 2423 2424 if ((touchscreen != o.touchscreen) && requested->touchscreen) { 2425 return (touchscreen); 2426 } 2427 } 2428 2429 if (input || o.input) { 2430 const int keysHidden = inputFlags & MASK_KEYSHIDDEN; 2431 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN; 2432 if (keysHidden != oKeysHidden) { 2433 const int reqKeysHidden = 2434 requested->inputFlags & MASK_KEYSHIDDEN; 2435 if (reqKeysHidden) { 2436 2437 if (!keysHidden) return false; 2438 if (!oKeysHidden) return true; 2439 // For compatibility, we count KEYSHIDDEN_NO as being 2440 // the same as KEYSHIDDEN_SOFT. Here we disambiguate 2441 // these by making an exact match more specific. 2442 if (reqKeysHidden == keysHidden) return true; 2443 if (reqKeysHidden == oKeysHidden) return false; 2444 } 2445 } 2446 2447 const int navHidden = inputFlags & MASK_NAVHIDDEN; 2448 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN; 2449 if (navHidden != oNavHidden) { 2450 const int reqNavHidden = 2451 requested->inputFlags & MASK_NAVHIDDEN; 2452 if (reqNavHidden) { 2453 2454 if (!navHidden) return false; 2455 if (!oNavHidden) return true; 2456 } 2457 } 2458 2459 if ((keyboard != o.keyboard) && requested->keyboard) { 2460 return (keyboard); 2461 } 2462 2463 if ((navigation != o.navigation) && requested->navigation) { 2464 return (navigation); 2465 } 2466 } 2467 2468 if (screenSize || o.screenSize) { 2469 // "Better" is based on the sum of the difference between both 2470 // width and height from the requested dimensions. We are 2471 // assuming the invalid configs (with smaller sizes) have 2472 // already been filtered. Note that if a particular dimension 2473 // is unspecified, we will end up with a large value (the 2474 // difference between 0 and the requested dimension), which is 2475 // good since we will prefer a config that has specified a 2476 // size value. 2477 int myDelta = 0, otherDelta = 0; 2478 if (requested->screenWidth) { 2479 myDelta += requested->screenWidth - screenWidth; 2480 otherDelta += requested->screenWidth - o.screenWidth; 2481 } 2482 if (requested->screenHeight) { 2483 myDelta += requested->screenHeight - screenHeight; 2484 otherDelta += requested->screenHeight - o.screenHeight; 2485 } 2486 if (myDelta != otherDelta) { 2487 return myDelta < otherDelta; 2488 } 2489 } 2490 2491 if (version || o.version) { 2492 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) { 2493 return (sdkVersion > o.sdkVersion); 2494 } 2495 2496 if ((minorVersion != o.minorVersion) && 2497 requested->minorVersion) { 2498 return (minorVersion); 2499 } 2500 } 2501 2502 return false; 2503 } 2504 return isMoreSpecificThan(o); 2505} 2506 2507bool ResTable_config::match(const ResTable_config& settings) const { 2508 if (imsi != 0) { 2509 if (mcc != 0 && mcc != settings.mcc) { 2510 return false; 2511 } 2512 if (mnc != 0 && mnc != settings.mnc) { 2513 return false; 2514 } 2515 } 2516 if (locale != 0) { 2517 // Don't consider country and variants when deciding matches. 2518 // (Theoretically, the variant can also affect the script. For 2519 // example, "ar-alalc97" probably implies the Latin script, but since 2520 // CLDR doesn't support getting likely scripts for that, we'll assume 2521 // the variant doesn't change the script.) 2522 // 2523 // If two configs differ only in their country and variant, 2524 // they can be weeded out in the isMoreSpecificThan test. 2525 if (language[0] != settings.language[0] || language[1] != settings.language[1]) { 2526 return false; 2527 } 2528 2529 // For backward compatibility and supporting private-use locales, we 2530 // fall back to old behavior if we couldn't determine the script for 2531 // either of the desired locale or the provided locale. But if we could determine 2532 // the scripts, they should be the same for the locales to match. 2533 bool countriesMustMatch = false; 2534 char computed_script[4]; 2535 const char* script; 2536 if (settings.localeScript[0] == '\0') { // could not determine the request's script 2537 countriesMustMatch = true; 2538 } else { 2539 if (localeScript[0] == '\0' && !localeScriptWasComputed) { 2540 // script was not provided or computed, so we try to compute it 2541 localeDataComputeScript(computed_script, language, country); 2542 if (computed_script[0] == '\0') { // we could not compute the script 2543 countriesMustMatch = true; 2544 } else { 2545 script = computed_script; 2546 } 2547 } else { // script was provided, so just use it 2548 script = localeScript; 2549 } 2550 } 2551 2552 if (countriesMustMatch) { 2553 if (country[0] != '\0' 2554 && (country[0] != settings.country[0] 2555 || country[1] != settings.country[1])) { 2556 return false; 2557 } 2558 } else { 2559 if (memcmp(script, settings.localeScript, sizeof(settings.localeScript)) != 0) { 2560 return false; 2561 } 2562 } 2563 } 2564 2565 if (screenConfig != 0) { 2566 const int layoutDir = screenLayout&MASK_LAYOUTDIR; 2567 const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR; 2568 if (layoutDir != 0 && layoutDir != setLayoutDir) { 2569 return false; 2570 } 2571 2572 const int screenSize = screenLayout&MASK_SCREENSIZE; 2573 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE; 2574 // Any screen sizes for larger screens than the setting do not 2575 // match. 2576 if (screenSize != 0 && screenSize > setScreenSize) { 2577 return false; 2578 } 2579 2580 const int screenLong = screenLayout&MASK_SCREENLONG; 2581 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG; 2582 if (screenLong != 0 && screenLong != setScreenLong) { 2583 return false; 2584 } 2585 2586 const int uiModeType = uiMode&MASK_UI_MODE_TYPE; 2587 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE; 2588 if (uiModeType != 0 && uiModeType != setUiModeType) { 2589 return false; 2590 } 2591 2592 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT; 2593 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT; 2594 if (uiModeNight != 0 && uiModeNight != setUiModeNight) { 2595 return false; 2596 } 2597 2598 if (smallestScreenWidthDp != 0 2599 && smallestScreenWidthDp > settings.smallestScreenWidthDp) { 2600 return false; 2601 } 2602 } 2603 2604 if (screenConfig2 != 0) { 2605 const int screenRound = screenLayout2 & MASK_SCREENROUND; 2606 const int setScreenRound = settings.screenLayout2 & MASK_SCREENROUND; 2607 if (screenRound != 0 && screenRound != setScreenRound) { 2608 return false; 2609 } 2610 } 2611 2612 if (screenSizeDp != 0) { 2613 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) { 2614 if (kDebugTableSuperNoisy) { 2615 ALOGI("Filtering out width %d in requested %d", screenWidthDp, 2616 settings.screenWidthDp); 2617 } 2618 return false; 2619 } 2620 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) { 2621 if (kDebugTableSuperNoisy) { 2622 ALOGI("Filtering out height %d in requested %d", screenHeightDp, 2623 settings.screenHeightDp); 2624 } 2625 return false; 2626 } 2627 } 2628 if (screenType != 0) { 2629 if (orientation != 0 && orientation != settings.orientation) { 2630 return false; 2631 } 2632 // density always matches - we can scale it. See isBetterThan 2633 if (touchscreen != 0 && touchscreen != settings.touchscreen) { 2634 return false; 2635 } 2636 } 2637 if (input != 0) { 2638 const int keysHidden = inputFlags&MASK_KEYSHIDDEN; 2639 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN; 2640 if (keysHidden != 0 && keysHidden != setKeysHidden) { 2641 // For compatibility, we count a request for KEYSHIDDEN_NO as also 2642 // matching the more recent KEYSHIDDEN_SOFT. Basically 2643 // KEYSHIDDEN_NO means there is some kind of keyboard available. 2644 if (kDebugTableSuperNoisy) { 2645 ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden); 2646 } 2647 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) { 2648 if (kDebugTableSuperNoisy) { 2649 ALOGI("No match!"); 2650 } 2651 return false; 2652 } 2653 } 2654 const int navHidden = inputFlags&MASK_NAVHIDDEN; 2655 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN; 2656 if (navHidden != 0 && navHidden != setNavHidden) { 2657 return false; 2658 } 2659 if (keyboard != 0 && keyboard != settings.keyboard) { 2660 return false; 2661 } 2662 if (navigation != 0 && navigation != settings.navigation) { 2663 return false; 2664 } 2665 } 2666 if (screenSize != 0) { 2667 if (screenWidth != 0 && screenWidth > settings.screenWidth) { 2668 return false; 2669 } 2670 if (screenHeight != 0 && screenHeight > settings.screenHeight) { 2671 return false; 2672 } 2673 } 2674 if (version != 0) { 2675 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) { 2676 return false; 2677 } 2678 if (minorVersion != 0 && minorVersion != settings.minorVersion) { 2679 return false; 2680 } 2681 } 2682 return true; 2683} 2684 2685void ResTable_config::appendDirLocale(String8& out) const { 2686 if (!language[0]) { 2687 return; 2688 } 2689 const bool scriptWasProvided = localeScript[0] != '\0' && !localeScriptWasComputed; 2690 if (!scriptWasProvided && !localeVariant[0]) { 2691 // Legacy format. 2692 if (out.size() > 0) { 2693 out.append("-"); 2694 } 2695 2696 char buf[4]; 2697 size_t len = unpackLanguage(buf); 2698 out.append(buf, len); 2699 2700 if (country[0]) { 2701 out.append("-r"); 2702 len = unpackRegion(buf); 2703 out.append(buf, len); 2704 } 2705 return; 2706 } 2707 2708 // We are writing the modified BCP 47 tag. 2709 // It starts with 'b+' and uses '+' as a separator. 2710 2711 if (out.size() > 0) { 2712 out.append("-"); 2713 } 2714 out.append("b+"); 2715 2716 char buf[4]; 2717 size_t len = unpackLanguage(buf); 2718 out.append(buf, len); 2719 2720 if (scriptWasProvided) { 2721 out.append("+"); 2722 out.append(localeScript, sizeof(localeScript)); 2723 } 2724 2725 if (country[0]) { 2726 out.append("+"); 2727 len = unpackRegion(buf); 2728 out.append(buf, len); 2729 } 2730 2731 if (localeVariant[0]) { 2732 out.append("+"); 2733 out.append(localeVariant, strnlen(localeVariant, sizeof(localeVariant))); 2734 } 2735} 2736 2737void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const { 2738 memset(str, 0, RESTABLE_MAX_LOCALE_LEN); 2739 2740 // This represents the "any" locale value, which has traditionally been 2741 // represented by the empty string. 2742 if (!language[0] && !country[0]) { 2743 return; 2744 } 2745 2746 size_t charsWritten = 0; 2747 if (language[0]) { 2748 charsWritten += unpackLanguage(str); 2749 } 2750 2751 if (localeScript[0] && !localeScriptWasComputed) { 2752 if (charsWritten) { 2753 str[charsWritten++] = '-'; 2754 } 2755 memcpy(str + charsWritten, localeScript, sizeof(localeScript)); 2756 charsWritten += sizeof(localeScript); 2757 } 2758 2759 if (country[0]) { 2760 if (charsWritten) { 2761 str[charsWritten++] = '-'; 2762 } 2763 charsWritten += unpackRegion(str + charsWritten); 2764 } 2765 2766 if (localeVariant[0]) { 2767 if (charsWritten) { 2768 str[charsWritten++] = '-'; 2769 } 2770 memcpy(str + charsWritten, localeVariant, sizeof(localeVariant)); 2771 } 2772} 2773 2774/* static */ inline bool assignLocaleComponent(ResTable_config* config, 2775 const char* start, size_t size) { 2776 2777 switch (size) { 2778 case 0: 2779 return false; 2780 case 2: 2781 case 3: 2782 config->language[0] ? config->packRegion(start) : config->packLanguage(start); 2783 break; 2784 case 4: 2785 if ('0' <= start[0] && start[0] <= '9') { 2786 // this is a variant, so fall through 2787 } else { 2788 config->localeScript[0] = toupper(start[0]); 2789 for (size_t i = 1; i < 4; ++i) { 2790 config->localeScript[i] = tolower(start[i]); 2791 } 2792 break; 2793 } 2794 case 5: 2795 case 6: 2796 case 7: 2797 case 8: 2798 for (size_t i = 0; i < size; ++i) { 2799 config->localeVariant[i] = tolower(start[i]); 2800 } 2801 break; 2802 default: 2803 return false; 2804 } 2805 2806 return true; 2807} 2808 2809void ResTable_config::setBcp47Locale(const char* in) { 2810 locale = 0; 2811 memset(localeScript, 0, sizeof(localeScript)); 2812 memset(localeVariant, 0, sizeof(localeVariant)); 2813 2814 const char* separator = in; 2815 const char* start = in; 2816 while ((separator = strchr(start, '-')) != NULL) { 2817 const size_t size = separator - start; 2818 if (!assignLocaleComponent(this, start, size)) { 2819 fprintf(stderr, "Invalid BCP-47 locale string: %s", in); 2820 } 2821 2822 start = (separator + 1); 2823 } 2824 2825 const size_t size = in + strlen(in) - start; 2826 assignLocaleComponent(this, start, size); 2827 localeScriptWasComputed = (localeScript[0] == '\0'); 2828 if (localeScriptWasComputed) { 2829 computeScript(); 2830 } 2831} 2832 2833String8 ResTable_config::toString() const { 2834 String8 res; 2835 2836 if (mcc != 0) { 2837 if (res.size() > 0) res.append("-"); 2838 res.appendFormat("mcc%d", dtohs(mcc)); 2839 } 2840 if (mnc != 0) { 2841 if (res.size() > 0) res.append("-"); 2842 res.appendFormat("mnc%d", dtohs(mnc)); 2843 } 2844 2845 appendDirLocale(res); 2846 2847 if ((screenLayout&MASK_LAYOUTDIR) != 0) { 2848 if (res.size() > 0) res.append("-"); 2849 switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) { 2850 case ResTable_config::LAYOUTDIR_LTR: 2851 res.append("ldltr"); 2852 break; 2853 case ResTable_config::LAYOUTDIR_RTL: 2854 res.append("ldrtl"); 2855 break; 2856 default: 2857 res.appendFormat("layoutDir=%d", 2858 dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR)); 2859 break; 2860 } 2861 } 2862 if (smallestScreenWidthDp != 0) { 2863 if (res.size() > 0) res.append("-"); 2864 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp)); 2865 } 2866 if (screenWidthDp != 0) { 2867 if (res.size() > 0) res.append("-"); 2868 res.appendFormat("w%ddp", dtohs(screenWidthDp)); 2869 } 2870 if (screenHeightDp != 0) { 2871 if (res.size() > 0) res.append("-"); 2872 res.appendFormat("h%ddp", dtohs(screenHeightDp)); 2873 } 2874 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) { 2875 if (res.size() > 0) res.append("-"); 2876 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) { 2877 case ResTable_config::SCREENSIZE_SMALL: 2878 res.append("small"); 2879 break; 2880 case ResTable_config::SCREENSIZE_NORMAL: 2881 res.append("normal"); 2882 break; 2883 case ResTable_config::SCREENSIZE_LARGE: 2884 res.append("large"); 2885 break; 2886 case ResTable_config::SCREENSIZE_XLARGE: 2887 res.append("xlarge"); 2888 break; 2889 default: 2890 res.appendFormat("screenLayoutSize=%d", 2891 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE)); 2892 break; 2893 } 2894 } 2895 if ((screenLayout&MASK_SCREENLONG) != 0) { 2896 if (res.size() > 0) res.append("-"); 2897 switch (screenLayout&ResTable_config::MASK_SCREENLONG) { 2898 case ResTable_config::SCREENLONG_NO: 2899 res.append("notlong"); 2900 break; 2901 case ResTable_config::SCREENLONG_YES: 2902 res.append("long"); 2903 break; 2904 default: 2905 res.appendFormat("screenLayoutLong=%d", 2906 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG)); 2907 break; 2908 } 2909 } 2910 if ((screenLayout2&MASK_SCREENROUND) != 0) { 2911 if (res.size() > 0) res.append("-"); 2912 switch (screenLayout2&MASK_SCREENROUND) { 2913 case SCREENROUND_NO: 2914 res.append("notround"); 2915 break; 2916 case SCREENROUND_YES: 2917 res.append("round"); 2918 break; 2919 default: 2920 res.appendFormat("screenRound=%d", dtohs(screenLayout2&MASK_SCREENROUND)); 2921 break; 2922 } 2923 } 2924 if (orientation != ORIENTATION_ANY) { 2925 if (res.size() > 0) res.append("-"); 2926 switch (orientation) { 2927 case ResTable_config::ORIENTATION_PORT: 2928 res.append("port"); 2929 break; 2930 case ResTable_config::ORIENTATION_LAND: 2931 res.append("land"); 2932 break; 2933 case ResTable_config::ORIENTATION_SQUARE: 2934 res.append("square"); 2935 break; 2936 default: 2937 res.appendFormat("orientation=%d", dtohs(orientation)); 2938 break; 2939 } 2940 } 2941 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) { 2942 if (res.size() > 0) res.append("-"); 2943 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) { 2944 case ResTable_config::UI_MODE_TYPE_DESK: 2945 res.append("desk"); 2946 break; 2947 case ResTable_config::UI_MODE_TYPE_CAR: 2948 res.append("car"); 2949 break; 2950 case ResTable_config::UI_MODE_TYPE_TELEVISION: 2951 res.append("television"); 2952 break; 2953 case ResTable_config::UI_MODE_TYPE_APPLIANCE: 2954 res.append("appliance"); 2955 break; 2956 case ResTable_config::UI_MODE_TYPE_WATCH: 2957 res.append("watch"); 2958 break; 2959 default: 2960 res.appendFormat("uiModeType=%d", 2961 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE)); 2962 break; 2963 } 2964 } 2965 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) { 2966 if (res.size() > 0) res.append("-"); 2967 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) { 2968 case ResTable_config::UI_MODE_NIGHT_NO: 2969 res.append("notnight"); 2970 break; 2971 case ResTable_config::UI_MODE_NIGHT_YES: 2972 res.append("night"); 2973 break; 2974 default: 2975 res.appendFormat("uiModeNight=%d", 2976 dtohs(uiMode&MASK_UI_MODE_NIGHT)); 2977 break; 2978 } 2979 } 2980 if (density != DENSITY_DEFAULT) { 2981 if (res.size() > 0) res.append("-"); 2982 switch (density) { 2983 case ResTable_config::DENSITY_LOW: 2984 res.append("ldpi"); 2985 break; 2986 case ResTable_config::DENSITY_MEDIUM: 2987 res.append("mdpi"); 2988 break; 2989 case ResTable_config::DENSITY_TV: 2990 res.append("tvdpi"); 2991 break; 2992 case ResTable_config::DENSITY_HIGH: 2993 res.append("hdpi"); 2994 break; 2995 case ResTable_config::DENSITY_XHIGH: 2996 res.append("xhdpi"); 2997 break; 2998 case ResTable_config::DENSITY_XXHIGH: 2999 res.append("xxhdpi"); 3000 break; 3001 case ResTable_config::DENSITY_XXXHIGH: 3002 res.append("xxxhdpi"); 3003 break; 3004 case ResTable_config::DENSITY_NONE: 3005 res.append("nodpi"); 3006 break; 3007 case ResTable_config::DENSITY_ANY: 3008 res.append("anydpi"); 3009 break; 3010 default: 3011 res.appendFormat("%ddpi", dtohs(density)); 3012 break; 3013 } 3014 } 3015 if (touchscreen != TOUCHSCREEN_ANY) { 3016 if (res.size() > 0) res.append("-"); 3017 switch (touchscreen) { 3018 case ResTable_config::TOUCHSCREEN_NOTOUCH: 3019 res.append("notouch"); 3020 break; 3021 case ResTable_config::TOUCHSCREEN_FINGER: 3022 res.append("finger"); 3023 break; 3024 case ResTable_config::TOUCHSCREEN_STYLUS: 3025 res.append("stylus"); 3026 break; 3027 default: 3028 res.appendFormat("touchscreen=%d", dtohs(touchscreen)); 3029 break; 3030 } 3031 } 3032 if ((inputFlags&MASK_KEYSHIDDEN) != 0) { 3033 if (res.size() > 0) res.append("-"); 3034 switch (inputFlags&MASK_KEYSHIDDEN) { 3035 case ResTable_config::KEYSHIDDEN_NO: 3036 res.append("keysexposed"); 3037 break; 3038 case ResTable_config::KEYSHIDDEN_YES: 3039 res.append("keyshidden"); 3040 break; 3041 case ResTable_config::KEYSHIDDEN_SOFT: 3042 res.append("keyssoft"); 3043 break; 3044 } 3045 } 3046 if (keyboard != KEYBOARD_ANY) { 3047 if (res.size() > 0) res.append("-"); 3048 switch (keyboard) { 3049 case ResTable_config::KEYBOARD_NOKEYS: 3050 res.append("nokeys"); 3051 break; 3052 case ResTable_config::KEYBOARD_QWERTY: 3053 res.append("qwerty"); 3054 break; 3055 case ResTable_config::KEYBOARD_12KEY: 3056 res.append("12key"); 3057 break; 3058 default: 3059 res.appendFormat("keyboard=%d", dtohs(keyboard)); 3060 break; 3061 } 3062 } 3063 if ((inputFlags&MASK_NAVHIDDEN) != 0) { 3064 if (res.size() > 0) res.append("-"); 3065 switch (inputFlags&MASK_NAVHIDDEN) { 3066 case ResTable_config::NAVHIDDEN_NO: 3067 res.append("navexposed"); 3068 break; 3069 case ResTable_config::NAVHIDDEN_YES: 3070 res.append("navhidden"); 3071 break; 3072 default: 3073 res.appendFormat("inputFlagsNavHidden=%d", 3074 dtohs(inputFlags&MASK_NAVHIDDEN)); 3075 break; 3076 } 3077 } 3078 if (navigation != NAVIGATION_ANY) { 3079 if (res.size() > 0) res.append("-"); 3080 switch (navigation) { 3081 case ResTable_config::NAVIGATION_NONAV: 3082 res.append("nonav"); 3083 break; 3084 case ResTable_config::NAVIGATION_DPAD: 3085 res.append("dpad"); 3086 break; 3087 case ResTable_config::NAVIGATION_TRACKBALL: 3088 res.append("trackball"); 3089 break; 3090 case ResTable_config::NAVIGATION_WHEEL: 3091 res.append("wheel"); 3092 break; 3093 default: 3094 res.appendFormat("navigation=%d", dtohs(navigation)); 3095 break; 3096 } 3097 } 3098 if (screenSize != 0) { 3099 if (res.size() > 0) res.append("-"); 3100 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight)); 3101 } 3102 if (version != 0) { 3103 if (res.size() > 0) res.append("-"); 3104 res.appendFormat("v%d", dtohs(sdkVersion)); 3105 if (minorVersion != 0) { 3106 res.appendFormat(".%d", dtohs(minorVersion)); 3107 } 3108 } 3109 3110 return res; 3111} 3112 3113// -------------------------------------------------------------------- 3114// -------------------------------------------------------------------- 3115// -------------------------------------------------------------------- 3116 3117struct ResTable::Header 3118{ 3119 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL), 3120 resourceIDMap(NULL), resourceIDMapSize(0) { } 3121 3122 ~Header() 3123 { 3124 free(resourceIDMap); 3125 } 3126 3127 const ResTable* const owner; 3128 void* ownedData; 3129 const ResTable_header* header; 3130 size_t size; 3131 const uint8_t* dataEnd; 3132 size_t index; 3133 int32_t cookie; 3134 3135 ResStringPool values; 3136 uint32_t* resourceIDMap; 3137 size_t resourceIDMapSize; 3138}; 3139 3140struct ResTable::Entry { 3141 ResTable_config config; 3142 const ResTable_entry* entry; 3143 const ResTable_type* type; 3144 uint32_t specFlags; 3145 const Package* package; 3146 3147 StringPoolRef typeStr; 3148 StringPoolRef keyStr; 3149}; 3150 3151struct ResTable::Type 3152{ 3153 Type(const Header* _header, const Package* _package, size_t count) 3154 : header(_header), package(_package), entryCount(count), 3155 typeSpec(NULL), typeSpecFlags(NULL) { } 3156 const Header* const header; 3157 const Package* const package; 3158 const size_t entryCount; 3159 const ResTable_typeSpec* typeSpec; 3160 const uint32_t* typeSpecFlags; 3161 IdmapEntries idmapEntries; 3162 Vector<const ResTable_type*> configs; 3163}; 3164 3165struct ResTable::Package 3166{ 3167 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package) 3168 : owner(_owner), header(_header), package(_package), typeIdOffset(0) { 3169 if (dtohs(package->header.headerSize) == sizeof(package)) { 3170 // The package structure is the same size as the definition. 3171 // This means it contains the typeIdOffset field. 3172 typeIdOffset = package->typeIdOffset; 3173 } 3174 } 3175 3176 const ResTable* const owner; 3177 const Header* const header; 3178 const ResTable_package* const package; 3179 3180 ResStringPool typeStrings; 3181 ResStringPool keyStrings; 3182 3183 size_t typeIdOffset; 3184}; 3185 3186// A group of objects describing a particular resource package. 3187// The first in 'package' is always the root object (from the resource 3188// table that defined the package); the ones after are skins on top of it. 3189struct ResTable::PackageGroup 3190{ 3191 PackageGroup( 3192 ResTable* _owner, const String16& _name, uint32_t _id, 3193 bool appAsLib, bool _isSystemAsset) 3194 : owner(_owner) 3195 , name(_name) 3196 , id(_id) 3197 , largestTypeId(0) 3198 , dynamicRefTable(static_cast<uint8_t>(_id), appAsLib) 3199 , isSystemAsset(_isSystemAsset) 3200 { } 3201 3202 ~PackageGroup() { 3203 clearBagCache(); 3204 const size_t numTypes = types.size(); 3205 for (size_t i = 0; i < numTypes; i++) { 3206 const TypeList& typeList = types[i]; 3207 const size_t numInnerTypes = typeList.size(); 3208 for (size_t j = 0; j < numInnerTypes; j++) { 3209 if (typeList[j]->package->owner == owner) { 3210 delete typeList[j]; 3211 } 3212 } 3213 } 3214 3215 const size_t N = packages.size(); 3216 for (size_t i=0; i<N; i++) { 3217 Package* pkg = packages[i]; 3218 if (pkg->owner == owner) { 3219 delete pkg; 3220 } 3221 } 3222 } 3223 3224 /** 3225 * Clear all cache related data that depends on parameters/configuration. 3226 * This includes the bag caches and filtered types. 3227 */ 3228 void clearBagCache() { 3229 for (size_t i = 0; i < typeCacheEntries.size(); i++) { 3230 if (kDebugTableNoisy) { 3231 printf("type=%zu\n", i); 3232 } 3233 const TypeList& typeList = types[i]; 3234 if (!typeList.isEmpty()) { 3235 TypeCacheEntry& cacheEntry = typeCacheEntries.editItemAt(i); 3236 3237 // Reset the filtered configurations. 3238 cacheEntry.filteredConfigs.clear(); 3239 3240 bag_set** typeBags = cacheEntry.cachedBags; 3241 if (kDebugTableNoisy) { 3242 printf("typeBags=%p\n", typeBags); 3243 } 3244 3245 if (typeBags) { 3246 const size_t N = typeList[0]->entryCount; 3247 if (kDebugTableNoisy) { 3248 printf("type->entryCount=%zu\n", N); 3249 } 3250 for (size_t j = 0; j < N; j++) { 3251 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF) { 3252 free(typeBags[j]); 3253 } 3254 } 3255 free(typeBags); 3256 cacheEntry.cachedBags = NULL; 3257 } 3258 } 3259 } 3260 } 3261 3262 ssize_t findType16(const char16_t* type, size_t len) const { 3263 const size_t N = packages.size(); 3264 for (size_t i = 0; i < N; i++) { 3265 ssize_t index = packages[i]->typeStrings.indexOfString(type, len); 3266 if (index >= 0) { 3267 return index + packages[i]->typeIdOffset; 3268 } 3269 } 3270 return -1; 3271 } 3272 3273 const ResTable* const owner; 3274 String16 const name; 3275 uint32_t const id; 3276 3277 // This is mainly used to keep track of the loaded packages 3278 // and to clean them up properly. Accessing resources happens from 3279 // the 'types' array. 3280 Vector<Package*> packages; 3281 3282 ByteBucketArray<TypeList> types; 3283 3284 uint8_t largestTypeId; 3285 3286 // Cached objects dependent on the parameters/configuration of this ResTable. 3287 // Gets cleared whenever the parameters/configuration changes. 3288 // These are stored here in a parallel structure because the data in `types` may 3289 // be shared by other ResTable's (framework resources are shared this way). 3290 ByteBucketArray<TypeCacheEntry> typeCacheEntries; 3291 3292 // The table mapping dynamic references to resolved references for 3293 // this package group. 3294 // TODO: We may be able to support dynamic references in overlays 3295 // by having these tables in a per-package scope rather than 3296 // per-package-group. 3297 DynamicRefTable dynamicRefTable; 3298 3299 // If the package group comes from a system asset. Used in 3300 // determining non-system locales. 3301 const bool isSystemAsset; 3302}; 3303 3304ResTable::Theme::Theme(const ResTable& table) 3305 : mTable(table) 3306 , mTypeSpecFlags(0) 3307{ 3308 memset(mPackages, 0, sizeof(mPackages)); 3309} 3310 3311ResTable::Theme::~Theme() 3312{ 3313 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3314 package_info* pi = mPackages[i]; 3315 if (pi != NULL) { 3316 free_package(pi); 3317 } 3318 } 3319} 3320 3321void ResTable::Theme::free_package(package_info* pi) 3322{ 3323 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3324 theme_entry* te = pi->types[j].entries; 3325 if (te != NULL) { 3326 free(te); 3327 } 3328 } 3329 free(pi); 3330} 3331 3332ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi) 3333{ 3334 package_info* newpi = (package_info*)malloc(sizeof(package_info)); 3335 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3336 size_t cnt = pi->types[j].numEntries; 3337 newpi->types[j].numEntries = cnt; 3338 theme_entry* te = pi->types[j].entries; 3339 size_t cnt_max = SIZE_MAX / sizeof(theme_entry); 3340 if (te != NULL && (cnt < 0xFFFFFFFF-1) && (cnt < cnt_max)) { 3341 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry)); 3342 newpi->types[j].entries = newte; 3343 memcpy(newte, te, cnt*sizeof(theme_entry)); 3344 } else { 3345 newpi->types[j].entries = NULL; 3346 } 3347 } 3348 return newpi; 3349} 3350 3351status_t ResTable::Theme::applyStyle(uint32_t resID, bool force) 3352{ 3353 const bag_entry* bag; 3354 uint32_t bagTypeSpecFlags = 0; 3355 mTable.lock(); 3356 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags); 3357 if (kDebugTableNoisy) { 3358 ALOGV("Applying style 0x%08x to theme %p, count=%zu", resID, this, N); 3359 } 3360 if (N < 0) { 3361 mTable.unlock(); 3362 return N; 3363 } 3364 3365 mTypeSpecFlags |= bagTypeSpecFlags; 3366 3367 uint32_t curPackage = 0xffffffff; 3368 ssize_t curPackageIndex = 0; 3369 package_info* curPI = NULL; 3370 uint32_t curType = 0xffffffff; 3371 size_t numEntries = 0; 3372 theme_entry* curEntries = NULL; 3373 3374 const bag_entry* end = bag + N; 3375 while (bag < end) { 3376 const uint32_t attrRes = bag->map.name.ident; 3377 const uint32_t p = Res_GETPACKAGE(attrRes); 3378 const uint32_t t = Res_GETTYPE(attrRes); 3379 const uint32_t e = Res_GETENTRY(attrRes); 3380 3381 if (curPackage != p) { 3382 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes); 3383 if (pidx < 0) { 3384 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes); 3385 bag++; 3386 continue; 3387 } 3388 curPackage = p; 3389 curPackageIndex = pidx; 3390 curPI = mPackages[pidx]; 3391 if (curPI == NULL) { 3392 curPI = (package_info*)malloc(sizeof(package_info)); 3393 memset(curPI, 0, sizeof(*curPI)); 3394 mPackages[pidx] = curPI; 3395 } 3396 curType = 0xffffffff; 3397 } 3398 if (curType != t) { 3399 if (t > Res_MAXTYPE) { 3400 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes); 3401 bag++; 3402 continue; 3403 } 3404 curType = t; 3405 curEntries = curPI->types[t].entries; 3406 if (curEntries == NULL) { 3407 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex]; 3408 const TypeList& typeList = grp->types[t]; 3409 size_t cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount; 3410 size_t cnt_max = SIZE_MAX / sizeof(theme_entry); 3411 size_t buff_size = (cnt < cnt_max && cnt < 0xFFFFFFFF-1) ? 3412 cnt*sizeof(theme_entry) : 0; 3413 curEntries = (theme_entry*)malloc(buff_size); 3414 memset(curEntries, Res_value::TYPE_NULL, buff_size); 3415 curPI->types[t].numEntries = cnt; 3416 curPI->types[t].entries = curEntries; 3417 } 3418 numEntries = curPI->types[t].numEntries; 3419 } 3420 if (e >= numEntries) { 3421 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes); 3422 bag++; 3423 continue; 3424 } 3425 theme_entry* curEntry = curEntries + e; 3426 if (kDebugTableNoisy) { 3427 ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x", 3428 attrRes, bag->map.value.dataType, bag->map.value.data, 3429 curEntry->value.dataType); 3430 } 3431 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) { 3432 curEntry->stringBlock = bag->stringBlock; 3433 curEntry->typeSpecFlags |= bagTypeSpecFlags; 3434 curEntry->value = bag->map.value; 3435 } 3436 3437 bag++; 3438 } 3439 3440 mTable.unlock(); 3441 3442 if (kDebugTableTheme) { 3443 ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this); 3444 dumpToLog(); 3445 } 3446 3447 return NO_ERROR; 3448} 3449 3450status_t ResTable::Theme::setTo(const Theme& other) 3451{ 3452 if (kDebugTableTheme) { 3453 ALOGI("Setting theme %p from theme %p...\n", this, &other); 3454 dumpToLog(); 3455 other.dumpToLog(); 3456 } 3457 3458 if (&mTable == &other.mTable) { 3459 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3460 if (mPackages[i] != NULL) { 3461 free_package(mPackages[i]); 3462 } 3463 if (other.mPackages[i] != NULL) { 3464 mPackages[i] = copy_package(other.mPackages[i]); 3465 } else { 3466 mPackages[i] = NULL; 3467 } 3468 } 3469 } else { 3470 // @todo: need to really implement this, not just copy 3471 // the system package (which is still wrong because it isn't 3472 // fixing up resource references). 3473 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3474 if (mPackages[i] != NULL) { 3475 free_package(mPackages[i]); 3476 } 3477 if (i == 0 && other.mPackages[i] != NULL) { 3478 mPackages[i] = copy_package(other.mPackages[i]); 3479 } else { 3480 mPackages[i] = NULL; 3481 } 3482 } 3483 } 3484 3485 mTypeSpecFlags = other.mTypeSpecFlags; 3486 3487 if (kDebugTableTheme) { 3488 ALOGI("Final theme:"); 3489 dumpToLog(); 3490 } 3491 3492 return NO_ERROR; 3493} 3494 3495status_t ResTable::Theme::clear() 3496{ 3497 if (kDebugTableTheme) { 3498 ALOGI("Clearing theme %p...\n", this); 3499 dumpToLog(); 3500 } 3501 3502 for (size_t i = 0; i < Res_MAXPACKAGE; i++) { 3503 if (mPackages[i] != NULL) { 3504 free_package(mPackages[i]); 3505 mPackages[i] = NULL; 3506 } 3507 } 3508 3509 mTypeSpecFlags = 0; 3510 3511 if (kDebugTableTheme) { 3512 ALOGI("Final theme:"); 3513 dumpToLog(); 3514 } 3515 3516 return NO_ERROR; 3517} 3518 3519ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue, 3520 uint32_t* outTypeSpecFlags) const 3521{ 3522 int cnt = 20; 3523 3524 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0; 3525 3526 do { 3527 const ssize_t p = mTable.getResourcePackageIndex(resID); 3528 const uint32_t t = Res_GETTYPE(resID); 3529 const uint32_t e = Res_GETENTRY(resID); 3530 3531 if (kDebugTableTheme) { 3532 ALOGI("Looking up attr 0x%08x in theme %p", resID, this); 3533 } 3534 3535 if (p >= 0) { 3536 const package_info* const pi = mPackages[p]; 3537 if (kDebugTableTheme) { 3538 ALOGI("Found package: %p", pi); 3539 } 3540 if (pi != NULL) { 3541 if (kDebugTableTheme) { 3542 ALOGI("Desired type index is %zd in avail %zu", t, Res_MAXTYPE + 1); 3543 } 3544 if (t <= Res_MAXTYPE) { 3545 const type_info& ti = pi->types[t]; 3546 if (kDebugTableTheme) { 3547 ALOGI("Desired entry index is %u in avail %zu", e, ti.numEntries); 3548 } 3549 if (e < ti.numEntries) { 3550 const theme_entry& te = ti.entries[e]; 3551 if (outTypeSpecFlags != NULL) { 3552 *outTypeSpecFlags |= te.typeSpecFlags; 3553 } 3554 if (kDebugTableTheme) { 3555 ALOGI("Theme value: type=0x%x, data=0x%08x", 3556 te.value.dataType, te.value.data); 3557 } 3558 const uint8_t type = te.value.dataType; 3559 if (type == Res_value::TYPE_ATTRIBUTE) { 3560 if (cnt > 0) { 3561 cnt--; 3562 resID = te.value.data; 3563 continue; 3564 } 3565 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID); 3566 return BAD_INDEX; 3567 } else if (type != Res_value::TYPE_NULL) { 3568 *outValue = te.value; 3569 return te.stringBlock; 3570 } 3571 return BAD_INDEX; 3572 } 3573 } 3574 } 3575 } 3576 break; 3577 3578 } while (true); 3579 3580 return BAD_INDEX; 3581} 3582 3583ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue, 3584 ssize_t blockIndex, uint32_t* outLastRef, 3585 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const 3586{ 3587 //printf("Resolving type=0x%x\n", inOutValue->dataType); 3588 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) { 3589 uint32_t newTypeSpecFlags; 3590 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags); 3591 if (kDebugTableTheme) { 3592 ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=0x%x\n", 3593 (int)blockIndex, (int)inOutValue->dataType, inOutValue->data); 3594 } 3595 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags; 3596 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType); 3597 if (blockIndex < 0) { 3598 return blockIndex; 3599 } 3600 } 3601 return mTable.resolveReference(inOutValue, blockIndex, outLastRef, 3602 inoutTypeSpecFlags, inoutConfig); 3603} 3604 3605uint32_t ResTable::Theme::getChangingConfigurations() const 3606{ 3607 return mTypeSpecFlags; 3608} 3609 3610void ResTable::Theme::dumpToLog() const 3611{ 3612 ALOGI("Theme %p:\n", this); 3613 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3614 package_info* pi = mPackages[i]; 3615 if (pi == NULL) continue; 3616 3617 ALOGI(" Package #0x%02x:\n", (int)(i + 1)); 3618 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3619 type_info& ti = pi->types[j]; 3620 if (ti.numEntries == 0) continue; 3621 ALOGI(" Type #0x%02x:\n", (int)(j + 1)); 3622 for (size_t k = 0; k < ti.numEntries; k++) { 3623 const theme_entry& te = ti.entries[k]; 3624 if (te.value.dataType == Res_value::TYPE_NULL) continue; 3625 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n", 3626 (int)Res_MAKEID(i, j, k), 3627 te.value.dataType, (int)te.value.data, (int)te.stringBlock); 3628 } 3629 } 3630 } 3631} 3632 3633ResTable::ResTable() 3634 : mError(NO_INIT), mNextPackageId(2) 3635{ 3636 memset(&mParams, 0, sizeof(mParams)); 3637 memset(mPackageMap, 0, sizeof(mPackageMap)); 3638 if (kDebugTableSuperNoisy) { 3639 ALOGI("Creating ResTable %p\n", this); 3640 } 3641} 3642 3643ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData) 3644 : mError(NO_INIT), mNextPackageId(2) 3645{ 3646 memset(&mParams, 0, sizeof(mParams)); 3647 memset(mPackageMap, 0, sizeof(mPackageMap)); 3648 addInternal(data, size, NULL, 0, false, cookie, copyData); 3649 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table"); 3650 if (kDebugTableSuperNoisy) { 3651 ALOGI("Creating ResTable %p\n", this); 3652 } 3653} 3654 3655ResTable::~ResTable() 3656{ 3657 if (kDebugTableSuperNoisy) { 3658 ALOGI("Destroying ResTable in %p\n", this); 3659 } 3660 uninit(); 3661} 3662 3663inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const 3664{ 3665 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1; 3666} 3667 3668status_t ResTable::add(const void* data, size_t size, const int32_t cookie, bool copyData) { 3669 return addInternal(data, size, NULL, 0, false, cookie, copyData); 3670} 3671 3672status_t ResTable::add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize, 3673 const int32_t cookie, bool copyData, bool appAsLib) { 3674 return addInternal(data, size, idmapData, idmapDataSize, appAsLib, cookie, copyData); 3675} 3676 3677status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData) { 3678 const void* data = asset->getBuffer(true); 3679 if (data == NULL) { 3680 ALOGW("Unable to get buffer of resource asset file"); 3681 return UNKNOWN_ERROR; 3682 } 3683 3684 return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, false, 0, cookie, 3685 copyData); 3686} 3687 3688status_t ResTable::add( 3689 Asset* asset, Asset* idmapAsset, const int32_t cookie, bool copyData, 3690 bool appAsLib, bool isSystemAsset) { 3691 const void* data = asset->getBuffer(true); 3692 if (data == NULL) { 3693 ALOGW("Unable to get buffer of resource asset file"); 3694 return UNKNOWN_ERROR; 3695 } 3696 3697 size_t idmapSize = 0; 3698 const void* idmapData = NULL; 3699 if (idmapAsset != NULL) { 3700 idmapData = idmapAsset->getBuffer(true); 3701 if (idmapData == NULL) { 3702 ALOGW("Unable to get buffer of idmap asset file"); 3703 return UNKNOWN_ERROR; 3704 } 3705 idmapSize = static_cast<size_t>(idmapAsset->getLength()); 3706 } 3707 3708 return addInternal(data, static_cast<size_t>(asset->getLength()), 3709 idmapData, idmapSize, appAsLib, cookie, copyData, isSystemAsset); 3710} 3711 3712status_t ResTable::add(ResTable* src, bool isSystemAsset) 3713{ 3714 mError = src->mError; 3715 3716 for (size_t i=0; i < src->mHeaders.size(); i++) { 3717 mHeaders.add(src->mHeaders[i]); 3718 } 3719 3720 for (size_t i=0; i < src->mPackageGroups.size(); i++) { 3721 PackageGroup* srcPg = src->mPackageGroups[i]; 3722 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id, 3723 false /* appAsLib */, isSystemAsset || srcPg->isSystemAsset); 3724 for (size_t j=0; j<srcPg->packages.size(); j++) { 3725 pg->packages.add(srcPg->packages[j]); 3726 } 3727 3728 for (size_t j = 0; j < srcPg->types.size(); j++) { 3729 if (srcPg->types[j].isEmpty()) { 3730 continue; 3731 } 3732 3733 TypeList& typeList = pg->types.editItemAt(j); 3734 typeList.appendVector(srcPg->types[j]); 3735 } 3736 pg->dynamicRefTable.addMappings(srcPg->dynamicRefTable); 3737 pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId); 3738 mPackageGroups.add(pg); 3739 } 3740 3741 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap)); 3742 3743 return mError; 3744} 3745 3746status_t ResTable::addEmpty(const int32_t cookie) { 3747 Header* header = new Header(this); 3748 header->index = mHeaders.size(); 3749 header->cookie = cookie; 3750 header->values.setToEmpty(); 3751 header->ownedData = calloc(1, sizeof(ResTable_header)); 3752 3753 ResTable_header* resHeader = (ResTable_header*) header->ownedData; 3754 resHeader->header.type = RES_TABLE_TYPE; 3755 resHeader->header.headerSize = sizeof(ResTable_header); 3756 resHeader->header.size = sizeof(ResTable_header); 3757 3758 header->header = (const ResTable_header*) resHeader; 3759 mHeaders.add(header); 3760 return (mError=NO_ERROR); 3761} 3762 3763status_t ResTable::addInternal(const void* data, size_t dataSize, const void* idmapData, size_t idmapDataSize, 3764 bool appAsLib, const int32_t cookie, bool copyData, bool isSystemAsset) 3765{ 3766 if (!data) { 3767 return NO_ERROR; 3768 } 3769 3770 if (dataSize < sizeof(ResTable_header)) { 3771 ALOGE("Invalid data. Size(%d) is smaller than a ResTable_header(%d).", 3772 (int) dataSize, (int) sizeof(ResTable_header)); 3773 return UNKNOWN_ERROR; 3774 } 3775 3776 Header* header = new Header(this); 3777 header->index = mHeaders.size(); 3778 header->cookie = cookie; 3779 if (idmapData != NULL) { 3780 header->resourceIDMap = (uint32_t*) malloc(idmapDataSize); 3781 if (header->resourceIDMap == NULL) { 3782 delete header; 3783 return (mError = NO_MEMORY); 3784 } 3785 memcpy(header->resourceIDMap, idmapData, idmapDataSize); 3786 header->resourceIDMapSize = idmapDataSize; 3787 } 3788 mHeaders.add(header); 3789 3790 const bool notDeviceEndian = htods(0xf0) != 0xf0; 3791 3792 if (kDebugLoadTableNoisy) { 3793 ALOGV("Adding resources to ResTable: data=%p, size=%zu, cookie=%d, copy=%d " 3794 "idmap=%p\n", data, dataSize, cookie, copyData, idmapData); 3795 } 3796 3797 if (copyData || notDeviceEndian) { 3798 header->ownedData = malloc(dataSize); 3799 if (header->ownedData == NULL) { 3800 return (mError=NO_MEMORY); 3801 } 3802 memcpy(header->ownedData, data, dataSize); 3803 data = header->ownedData; 3804 } 3805 3806 header->header = (const ResTable_header*)data; 3807 header->size = dtohl(header->header->header.size); 3808 if (kDebugLoadTableSuperNoisy) { 3809 ALOGI("Got size %zu, again size 0x%x, raw size 0x%x\n", header->size, 3810 dtohl(header->header->header.size), header->header->header.size); 3811 } 3812 if (kDebugLoadTableNoisy) { 3813 ALOGV("Loading ResTable @%p:\n", header->header); 3814 } 3815 if (dtohs(header->header->header.headerSize) > header->size 3816 || header->size > dataSize) { 3817 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n", 3818 (int)dtohs(header->header->header.headerSize), 3819 (int)header->size, (int)dataSize); 3820 return (mError=BAD_TYPE); 3821 } 3822 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) { 3823 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n", 3824 (int)dtohs(header->header->header.headerSize), 3825 (int)header->size); 3826 return (mError=BAD_TYPE); 3827 } 3828 header->dataEnd = ((const uint8_t*)header->header) + header->size; 3829 3830 // Iterate through all chunks. 3831 size_t curPackage = 0; 3832 3833 const ResChunk_header* chunk = 3834 (const ResChunk_header*)(((const uint8_t*)header->header) 3835 + dtohs(header->header->header.headerSize)); 3836 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) && 3837 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) { 3838 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable"); 3839 if (err != NO_ERROR) { 3840 return (mError=err); 3841 } 3842 if (kDebugTableNoisy) { 3843 ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 3844 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 3845 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 3846 } 3847 const size_t csize = dtohl(chunk->size); 3848 const uint16_t ctype = dtohs(chunk->type); 3849 if (ctype == RES_STRING_POOL_TYPE) { 3850 if (header->values.getError() != NO_ERROR) { 3851 // Only use the first string chunk; ignore any others that 3852 // may appear. 3853 status_t err = header->values.setTo(chunk, csize); 3854 if (err != NO_ERROR) { 3855 return (mError=err); 3856 } 3857 } else { 3858 ALOGW("Multiple string chunks found in resource table."); 3859 } 3860 } else if (ctype == RES_TABLE_PACKAGE_TYPE) { 3861 if (curPackage >= dtohl(header->header->packageCount)) { 3862 ALOGW("More package chunks were found than the %d declared in the header.", 3863 dtohl(header->header->packageCount)); 3864 return (mError=BAD_TYPE); 3865 } 3866 3867 if (parsePackage( 3868 (ResTable_package*)chunk, header, appAsLib, isSystemAsset) != NO_ERROR) { 3869 return mError; 3870 } 3871 curPackage++; 3872 } else { 3873 ALOGW("Unknown chunk type 0x%x in table at %p.\n", 3874 ctype, 3875 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 3876 } 3877 chunk = (const ResChunk_header*) 3878 (((const uint8_t*)chunk) + csize); 3879 } 3880 3881 if (curPackage < dtohl(header->header->packageCount)) { 3882 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.", 3883 (int)curPackage, dtohl(header->header->packageCount)); 3884 return (mError=BAD_TYPE); 3885 } 3886 mError = header->values.getError(); 3887 if (mError != NO_ERROR) { 3888 ALOGW("No string values found in resource table!"); 3889 } 3890 3891 if (kDebugTableNoisy) { 3892 ALOGV("Returning from add with mError=%d\n", mError); 3893 } 3894 return mError; 3895} 3896 3897status_t ResTable::getError() const 3898{ 3899 return mError; 3900} 3901 3902void ResTable::uninit() 3903{ 3904 mError = NO_INIT; 3905 size_t N = mPackageGroups.size(); 3906 for (size_t i=0; i<N; i++) { 3907 PackageGroup* g = mPackageGroups[i]; 3908 delete g; 3909 } 3910 N = mHeaders.size(); 3911 for (size_t i=0; i<N; i++) { 3912 Header* header = mHeaders[i]; 3913 if (header->owner == this) { 3914 if (header->ownedData) { 3915 free(header->ownedData); 3916 } 3917 delete header; 3918 } 3919 } 3920 3921 mPackageGroups.clear(); 3922 mHeaders.clear(); 3923} 3924 3925bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const 3926{ 3927 if (mError != NO_ERROR) { 3928 return false; 3929 } 3930 3931 const ssize_t p = getResourcePackageIndex(resID); 3932 const int t = Res_GETTYPE(resID); 3933 const int e = Res_GETENTRY(resID); 3934 3935 if (p < 0) { 3936 if (Res_GETPACKAGE(resID)+1 == 0) { 3937 ALOGW("No package identifier when getting name for resource number 0x%08x", resID); 3938 } else { 3939#ifndef STATIC_ANDROIDFW_FOR_TOOLS 3940 ALOGW("No known package when getting name for resource number 0x%08x", resID); 3941#endif 3942 } 3943 return false; 3944 } 3945 if (t < 0) { 3946 ALOGW("No type identifier when getting name for resource number 0x%08x", resID); 3947 return false; 3948 } 3949 3950 const PackageGroup* const grp = mPackageGroups[p]; 3951 if (grp == NULL) { 3952 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID); 3953 return false; 3954 } 3955 3956 Entry entry; 3957 status_t err = getEntry(grp, t, e, NULL, &entry); 3958 if (err != NO_ERROR) { 3959 return false; 3960 } 3961 3962 outName->package = grp->name.string(); 3963 outName->packageLen = grp->name.size(); 3964 if (allowUtf8) { 3965 outName->type8 = entry.typeStr.string8(&outName->typeLen); 3966 outName->name8 = entry.keyStr.string8(&outName->nameLen); 3967 } else { 3968 outName->type8 = NULL; 3969 outName->name8 = NULL; 3970 } 3971 if (outName->type8 == NULL) { 3972 outName->type = entry.typeStr.string16(&outName->typeLen); 3973 // If we have a bad index for some reason, we should abort. 3974 if (outName->type == NULL) { 3975 return false; 3976 } 3977 } 3978 if (outName->name8 == NULL) { 3979 outName->name = entry.keyStr.string16(&outName->nameLen); 3980 // If we have a bad index for some reason, we should abort. 3981 if (outName->name == NULL) { 3982 return false; 3983 } 3984 } 3985 3986 return true; 3987} 3988 3989ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density, 3990 uint32_t* outSpecFlags, ResTable_config* outConfig) const 3991{ 3992 if (mError != NO_ERROR) { 3993 return mError; 3994 } 3995 3996 const ssize_t p = getResourcePackageIndex(resID); 3997 const int t = Res_GETTYPE(resID); 3998 const int e = Res_GETENTRY(resID); 3999 4000 if (p < 0) { 4001 if (Res_GETPACKAGE(resID)+1 == 0) { 4002 ALOGW("No package identifier when getting value for resource number 0x%08x", resID); 4003 } else { 4004 ALOGW("No known package when getting value for resource number 0x%08x", resID); 4005 } 4006 return BAD_INDEX; 4007 } 4008 if (t < 0) { 4009 ALOGW("No type identifier when getting value for resource number 0x%08x", resID); 4010 return BAD_INDEX; 4011 } 4012 4013 const PackageGroup* const grp = mPackageGroups[p]; 4014 if (grp == NULL) { 4015 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID); 4016 return BAD_INDEX; 4017 } 4018 4019 // Allow overriding density 4020 ResTable_config desiredConfig = mParams; 4021 if (density > 0) { 4022 desiredConfig.density = density; 4023 } 4024 4025 Entry entry; 4026 status_t err = getEntry(grp, t, e, &desiredConfig, &entry); 4027 if (err != NO_ERROR) { 4028 // Only log the failure when we're not running on the host as 4029 // part of a tool. The caller will do its own logging. 4030#ifndef STATIC_ANDROIDFW_FOR_TOOLS 4031 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n", 4032 resID, t, e, err); 4033#endif 4034 return err; 4035 } 4036 4037 if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) { 4038 if (!mayBeBag) { 4039 ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID); 4040 } 4041 return BAD_VALUE; 4042 } 4043 4044 const Res_value* value = reinterpret_cast<const Res_value*>( 4045 reinterpret_cast<const uint8_t*>(entry.entry) + entry.entry->size); 4046 4047 outValue->size = dtohs(value->size); 4048 outValue->res0 = value->res0; 4049 outValue->dataType = value->dataType; 4050 outValue->data = dtohl(value->data); 4051 4052 // The reference may be pointing to a resource in a shared library. These 4053 // references have build-time generated package IDs. These ids may not match 4054 // the actual package IDs of the corresponding packages in this ResTable. 4055 // We need to fix the package ID based on a mapping. 4056 if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) { 4057 ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data); 4058 return BAD_VALUE; 4059 } 4060 4061 if (kDebugTableNoisy) { 4062 size_t len; 4063 printf("Found value: pkg=%zu, type=%d, str=%s, int=%d\n", 4064 entry.package->header->index, 4065 outValue->dataType, 4066 outValue->dataType == Res_value::TYPE_STRING ? 4067 String8(entry.package->header->values.stringAt(outValue->data, &len)).string() : 4068 "", 4069 outValue->data); 4070 } 4071 4072 if (outSpecFlags != NULL) { 4073 *outSpecFlags = entry.specFlags; 4074 } 4075 4076 if (outConfig != NULL) { 4077 *outConfig = entry.config; 4078 } 4079 4080 return entry.package->header->index; 4081} 4082 4083ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex, 4084 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags, 4085 ResTable_config* outConfig) const 4086{ 4087 int count=0; 4088 while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE 4089 && value->data != 0 && count < 20) { 4090 if (outLastRef) *outLastRef = value->data; 4091 uint32_t newFlags = 0; 4092 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags, 4093 outConfig); 4094 if (newIndex == BAD_INDEX) { 4095 return BAD_INDEX; 4096 } 4097 if (kDebugTableTheme) { 4098 ALOGI("Resolving reference 0x%x: newIndex=%d, type=0x%x, data=0x%x\n", 4099 value->data, (int)newIndex, (int)value->dataType, value->data); 4100 } 4101 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex); 4102 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags; 4103 if (newIndex < 0) { 4104 // This can fail if the resource being referenced is a style... 4105 // in this case, just return the reference, and expect the 4106 // caller to deal with. 4107 return blockIndex; 4108 } 4109 blockIndex = newIndex; 4110 count++; 4111 } 4112 return blockIndex; 4113} 4114 4115const char16_t* ResTable::valueToString( 4116 const Res_value* value, size_t stringBlock, 4117 char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen) const 4118{ 4119 if (!value) { 4120 return NULL; 4121 } 4122 if (value->dataType == value->TYPE_STRING) { 4123 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen); 4124 } 4125 // XXX do int to string conversions. 4126 return NULL; 4127} 4128 4129ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const 4130{ 4131 mLock.lock(); 4132 ssize_t err = getBagLocked(resID, outBag); 4133 if (err < NO_ERROR) { 4134 //printf("*** get failed! unlocking\n"); 4135 mLock.unlock(); 4136 } 4137 return err; 4138} 4139 4140void ResTable::unlockBag(const bag_entry* /*bag*/) const 4141{ 4142 //printf("<<< unlockBag %p\n", this); 4143 mLock.unlock(); 4144} 4145 4146void ResTable::lock() const 4147{ 4148 mLock.lock(); 4149} 4150 4151void ResTable::unlock() const 4152{ 4153 mLock.unlock(); 4154} 4155 4156ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag, 4157 uint32_t* outTypeSpecFlags) const 4158{ 4159 if (mError != NO_ERROR) { 4160 return mError; 4161 } 4162 4163 const ssize_t p = getResourcePackageIndex(resID); 4164 const int t = Res_GETTYPE(resID); 4165 const int e = Res_GETENTRY(resID); 4166 4167 if (p < 0) { 4168 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID); 4169 return BAD_INDEX; 4170 } 4171 if (t < 0) { 4172 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID); 4173 return BAD_INDEX; 4174 } 4175 4176 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t); 4177 PackageGroup* const grp = mPackageGroups[p]; 4178 if (grp == NULL) { 4179 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID); 4180 return BAD_INDEX; 4181 } 4182 4183 const TypeList& typeConfigs = grp->types[t]; 4184 if (typeConfigs.isEmpty()) { 4185 ALOGW("Type identifier 0x%x does not exist.", t+1); 4186 return BAD_INDEX; 4187 } 4188 4189 const size_t NENTRY = typeConfigs[0]->entryCount; 4190 if (e >= (int)NENTRY) { 4191 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x", 4192 e, (int)typeConfigs[0]->entryCount); 4193 return BAD_INDEX; 4194 } 4195 4196 // First see if we've already computed this bag... 4197 TypeCacheEntry& cacheEntry = grp->typeCacheEntries.editItemAt(t); 4198 bag_set** typeSet = cacheEntry.cachedBags; 4199 if (typeSet) { 4200 bag_set* set = typeSet[e]; 4201 if (set) { 4202 if (set != (bag_set*)0xFFFFFFFF) { 4203 if (outTypeSpecFlags != NULL) { 4204 *outTypeSpecFlags = set->typeSpecFlags; 4205 } 4206 *outBag = (bag_entry*)(set+1); 4207 if (kDebugTableSuperNoisy) { 4208 ALOGI("Found existing bag for: 0x%x\n", resID); 4209 } 4210 return set->numAttrs; 4211 } 4212 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.", 4213 resID); 4214 return BAD_INDEX; 4215 } 4216 } 4217 4218 // Bag not found, we need to compute it! 4219 if (!typeSet) { 4220 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*)); 4221 if (!typeSet) return NO_MEMORY; 4222 cacheEntry.cachedBags = typeSet; 4223 } 4224 4225 // Mark that we are currently working on this one. 4226 typeSet[e] = (bag_set*)0xFFFFFFFF; 4227 4228 if (kDebugTableNoisy) { 4229 ALOGI("Building bag: %x\n", resID); 4230 } 4231 4232 // Now collect all bag attributes 4233 Entry entry; 4234 status_t err = getEntry(grp, t, e, &mParams, &entry); 4235 if (err != NO_ERROR) { 4236 return err; 4237 } 4238 4239 const uint16_t entrySize = dtohs(entry.entry->size); 4240 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry) 4241 ? dtohl(((const ResTable_map_entry*)entry.entry)->parent.ident) : 0; 4242 const uint32_t count = entrySize >= sizeof(ResTable_map_entry) 4243 ? dtohl(((const ResTable_map_entry*)entry.entry)->count) : 0; 4244 4245 size_t N = count; 4246 4247 if (kDebugTableNoisy) { 4248 ALOGI("Found map: size=%x parent=%x count=%d\n", entrySize, parent, count); 4249 4250 // If this map inherits from another, we need to start 4251 // with its parent's values. Otherwise start out empty. 4252 ALOGI("Creating new bag, entrySize=0x%08x, parent=0x%08x\n", entrySize, parent); 4253 } 4254 4255 // This is what we are building. 4256 bag_set* set = NULL; 4257 4258 if (parent) { 4259 uint32_t resolvedParent = parent; 4260 4261 // Bags encode a parent reference without using the standard 4262 // Res_value structure. That means we must always try to 4263 // resolve a parent reference in case it is actually a 4264 // TYPE_DYNAMIC_REFERENCE. 4265 status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent); 4266 if (err != NO_ERROR) { 4267 ALOGE("Failed resolving bag parent id 0x%08x", parent); 4268 return UNKNOWN_ERROR; 4269 } 4270 4271 const bag_entry* parentBag; 4272 uint32_t parentTypeSpecFlags = 0; 4273 const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags); 4274 const size_t NT = ((NP >= 0) ? NP : 0) + N; 4275 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT); 4276 if (set == NULL) { 4277 return NO_MEMORY; 4278 } 4279 if (NP > 0) { 4280 memcpy(set+1, parentBag, NP*sizeof(bag_entry)); 4281 set->numAttrs = NP; 4282 if (kDebugTableNoisy) { 4283 ALOGI("Initialized new bag with %zd inherited attributes.\n", NP); 4284 } 4285 } else { 4286 if (kDebugTableNoisy) { 4287 ALOGI("Initialized new bag with no inherited attributes.\n"); 4288 } 4289 set->numAttrs = 0; 4290 } 4291 set->availAttrs = NT; 4292 set->typeSpecFlags = parentTypeSpecFlags; 4293 } else { 4294 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N); 4295 if (set == NULL) { 4296 return NO_MEMORY; 4297 } 4298 set->numAttrs = 0; 4299 set->availAttrs = N; 4300 set->typeSpecFlags = 0; 4301 } 4302 4303 set->typeSpecFlags |= entry.specFlags; 4304 4305 // Now merge in the new attributes... 4306 size_t curOff = (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type)) 4307 + dtohs(entry.entry->size); 4308 const ResTable_map* map; 4309 bag_entry* entries = (bag_entry*)(set+1); 4310 size_t curEntry = 0; 4311 uint32_t pos = 0; 4312 if (kDebugTableNoisy) { 4313 ALOGI("Starting with set %p, entries=%p, avail=%zu\n", set, entries, set->availAttrs); 4314 } 4315 while (pos < count) { 4316 if (kDebugTableNoisy) { 4317 ALOGI("Now at %p\n", (void*)curOff); 4318 } 4319 4320 if (curOff > (dtohl(entry.type->header.size)-sizeof(ResTable_map))) { 4321 ALOGW("ResTable_map at %d is beyond type chunk data %d", 4322 (int)curOff, dtohl(entry.type->header.size)); 4323 return BAD_TYPE; 4324 } 4325 map = (const ResTable_map*)(((const uint8_t*)entry.type) + curOff); 4326 N++; 4327 4328 uint32_t newName = htodl(map->name.ident); 4329 if (!Res_INTERNALID(newName)) { 4330 // Attributes don't have a resource id as the name. They specify 4331 // other data, which would be wrong to change via a lookup. 4332 if (grp->dynamicRefTable.lookupResourceId(&newName) != NO_ERROR) { 4333 ALOGE("Failed resolving ResTable_map name at %d with ident 0x%08x", 4334 (int) curOff, (int) newName); 4335 return UNKNOWN_ERROR; 4336 } 4337 } 4338 4339 bool isInside; 4340 uint32_t oldName = 0; 4341 while ((isInside=(curEntry < set->numAttrs)) 4342 && (oldName=entries[curEntry].map.name.ident) < newName) { 4343 if (kDebugTableNoisy) { 4344 ALOGI("#%zu: Keeping existing attribute: 0x%08x\n", 4345 curEntry, entries[curEntry].map.name.ident); 4346 } 4347 curEntry++; 4348 } 4349 4350 if ((!isInside) || oldName != newName) { 4351 // This is a new attribute... figure out what to do with it. 4352 if (set->numAttrs >= set->availAttrs) { 4353 // Need to alloc more memory... 4354 const size_t newAvail = set->availAttrs+N; 4355 set = (bag_set*)realloc(set, 4356 sizeof(bag_set) 4357 + sizeof(bag_entry)*newAvail); 4358 if (set == NULL) { 4359 return NO_MEMORY; 4360 } 4361 set->availAttrs = newAvail; 4362 entries = (bag_entry*)(set+1); 4363 if (kDebugTableNoisy) { 4364 ALOGI("Reallocated set %p, entries=%p, avail=%zu\n", 4365 set, entries, set->availAttrs); 4366 } 4367 } 4368 if (isInside) { 4369 // Going in the middle, need to make space. 4370 memmove(entries+curEntry+1, entries+curEntry, 4371 sizeof(bag_entry)*(set->numAttrs-curEntry)); 4372 set->numAttrs++; 4373 } 4374 if (kDebugTableNoisy) { 4375 ALOGI("#%zu: Inserting new attribute: 0x%08x\n", curEntry, newName); 4376 } 4377 } else { 4378 if (kDebugTableNoisy) { 4379 ALOGI("#%zu: Replacing existing attribute: 0x%08x\n", curEntry, oldName); 4380 } 4381 } 4382 4383 bag_entry* cur = entries+curEntry; 4384 4385 cur->stringBlock = entry.package->header->index; 4386 cur->map.name.ident = newName; 4387 cur->map.value.copyFrom_dtoh(map->value); 4388 status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value); 4389 if (err != NO_ERROR) { 4390 ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data); 4391 return UNKNOWN_ERROR; 4392 } 4393 4394 if (kDebugTableNoisy) { 4395 ALOGI("Setting entry #%zu %p: block=%zd, name=0x%08d, type=%d, data=0x%08x\n", 4396 curEntry, cur, cur->stringBlock, cur->map.name.ident, 4397 cur->map.value.dataType, cur->map.value.data); 4398 } 4399 4400 // On to the next! 4401 curEntry++; 4402 pos++; 4403 const size_t size = dtohs(map->value.size); 4404 curOff += size + sizeof(*map)-sizeof(map->value); 4405 }; 4406 4407 if (curEntry > set->numAttrs) { 4408 set->numAttrs = curEntry; 4409 } 4410 4411 // And this is it... 4412 typeSet[e] = set; 4413 if (set) { 4414 if (outTypeSpecFlags != NULL) { 4415 *outTypeSpecFlags = set->typeSpecFlags; 4416 } 4417 *outBag = (bag_entry*)(set+1); 4418 if (kDebugTableNoisy) { 4419 ALOGI("Returning %zu attrs\n", set->numAttrs); 4420 } 4421 return set->numAttrs; 4422 } 4423 return BAD_INDEX; 4424} 4425 4426void ResTable::setParameters(const ResTable_config* params) 4427{ 4428 AutoMutex _lock(mLock); 4429 AutoMutex _lock2(mFilteredConfigLock); 4430 4431 if (kDebugTableGetEntry) { 4432 ALOGI("Setting parameters: %s\n", params->toString().string()); 4433 } 4434 mParams = *params; 4435 for (size_t p = 0; p < mPackageGroups.size(); p++) { 4436 PackageGroup* packageGroup = mPackageGroups.editItemAt(p); 4437 if (kDebugTableNoisy) { 4438 ALOGI("CLEARING BAGS FOR GROUP %zu!", p); 4439 } 4440 packageGroup->clearBagCache(); 4441 4442 // Find which configurations match the set of parameters. This allows for a much 4443 // faster lookup in getEntry() if the set of values is narrowed down. 4444 for (size_t t = 0; t < packageGroup->types.size(); t++) { 4445 if (packageGroup->types[t].isEmpty()) { 4446 continue; 4447 } 4448 4449 TypeList& typeList = packageGroup->types.editItemAt(t); 4450 4451 // Retrieve the cache entry for this type. 4452 TypeCacheEntry& cacheEntry = packageGroup->typeCacheEntries.editItemAt(t); 4453 4454 for (size_t ts = 0; ts < typeList.size(); ts++) { 4455 Type* type = typeList.editItemAt(ts); 4456 4457 std::shared_ptr<Vector<const ResTable_type*>> newFilteredConfigs = 4458 std::make_shared<Vector<const ResTable_type*>>(); 4459 4460 for (size_t ti = 0; ti < type->configs.size(); ti++) { 4461 ResTable_config config; 4462 config.copyFromDtoH(type->configs[ti]->config); 4463 4464 if (config.match(mParams)) { 4465 newFilteredConfigs->add(type->configs[ti]); 4466 } 4467 } 4468 4469 if (kDebugTableNoisy) { 4470 ALOGD("Updating pkg=%zu type=%zu with %zu filtered configs", 4471 p, t, newFilteredConfigs->size()); 4472 } 4473 4474 cacheEntry.filteredConfigs.add(newFilteredConfigs); 4475 } 4476 } 4477 } 4478} 4479 4480void ResTable::getParameters(ResTable_config* params) const 4481{ 4482 mLock.lock(); 4483 *params = mParams; 4484 mLock.unlock(); 4485} 4486 4487struct id_name_map { 4488 uint32_t id; 4489 size_t len; 4490 char16_t name[6]; 4491}; 4492 4493const static id_name_map ID_NAMES[] = { 4494 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } }, 4495 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } }, 4496 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } }, 4497 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } }, 4498 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } }, 4499 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } }, 4500 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } }, 4501 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } }, 4502 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } }, 4503 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } }, 4504}; 4505 4506uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen, 4507 const char16_t* type, size_t typeLen, 4508 const char16_t* package, 4509 size_t packageLen, 4510 uint32_t* outTypeSpecFlags) const 4511{ 4512 if (kDebugTableSuperNoisy) { 4513 printf("Identifier for name: error=%d\n", mError); 4514 } 4515 4516 // Check for internal resource identifier as the very first thing, so 4517 // that we will always find them even when there are no resources. 4518 if (name[0] == '^') { 4519 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0])); 4520 size_t len; 4521 for (int i=0; i<N; i++) { 4522 const id_name_map* m = ID_NAMES + i; 4523 len = m->len; 4524 if (len != nameLen) { 4525 continue; 4526 } 4527 for (size_t j=1; j<len; j++) { 4528 if (m->name[j] != name[j]) { 4529 goto nope; 4530 } 4531 } 4532 if (outTypeSpecFlags) { 4533 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 4534 } 4535 return m->id; 4536nope: 4537 ; 4538 } 4539 if (nameLen > 7) { 4540 if (name[1] == 'i' && name[2] == 'n' 4541 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x' 4542 && name[6] == '_') { 4543 int index = atoi(String8(name + 7, nameLen - 7).string()); 4544 if (Res_CHECKID(index)) { 4545 ALOGW("Array resource index: %d is too large.", 4546 index); 4547 return 0; 4548 } 4549 if (outTypeSpecFlags) { 4550 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 4551 } 4552 return Res_MAKEARRAY(index); 4553 } 4554 } 4555 return 0; 4556 } 4557 4558 if (mError != NO_ERROR) { 4559 return 0; 4560 } 4561 4562 bool fakePublic = false; 4563 4564 // Figure out the package and type we are looking in... 4565 4566 const char16_t* packageEnd = NULL; 4567 const char16_t* typeEnd = NULL; 4568 const char16_t* const nameEnd = name+nameLen; 4569 const char16_t* p = name; 4570 while (p < nameEnd) { 4571 if (*p == ':') packageEnd = p; 4572 else if (*p == '/') typeEnd = p; 4573 p++; 4574 } 4575 if (*name == '@') { 4576 name++; 4577 if (*name == '*') { 4578 fakePublic = true; 4579 name++; 4580 } 4581 } 4582 if (name >= nameEnd) { 4583 return 0; 4584 } 4585 4586 if (packageEnd) { 4587 package = name; 4588 packageLen = packageEnd-name; 4589 name = packageEnd+1; 4590 } else if (!package) { 4591 return 0; 4592 } 4593 4594 if (typeEnd) { 4595 type = name; 4596 typeLen = typeEnd-name; 4597 name = typeEnd+1; 4598 } else if (!type) { 4599 return 0; 4600 } 4601 4602 if (name >= nameEnd) { 4603 return 0; 4604 } 4605 nameLen = nameEnd-name; 4606 4607 if (kDebugTableNoisy) { 4608 printf("Looking for identifier: type=%s, name=%s, package=%s\n", 4609 String8(type, typeLen).string(), 4610 String8(name, nameLen).string(), 4611 String8(package, packageLen).string()); 4612 } 4613 4614 const String16 attr("attr"); 4615 const String16 attrPrivate("^attr-private"); 4616 4617 const size_t NG = mPackageGroups.size(); 4618 for (size_t ig=0; ig<NG; ig++) { 4619 const PackageGroup* group = mPackageGroups[ig]; 4620 4621 if (strzcmp16(package, packageLen, 4622 group->name.string(), group->name.size())) { 4623 if (kDebugTableNoisy) { 4624 printf("Skipping package group: %s\n", String8(group->name).string()); 4625 } 4626 continue; 4627 } 4628 4629 const size_t packageCount = group->packages.size(); 4630 for (size_t pi = 0; pi < packageCount; pi++) { 4631 const char16_t* targetType = type; 4632 size_t targetTypeLen = typeLen; 4633 4634 do { 4635 ssize_t ti = group->packages[pi]->typeStrings.indexOfString( 4636 targetType, targetTypeLen); 4637 if (ti < 0) { 4638 continue; 4639 } 4640 4641 ti += group->packages[pi]->typeIdOffset; 4642 4643 const uint32_t identifier = findEntry(group, ti, name, nameLen, 4644 outTypeSpecFlags); 4645 if (identifier != 0) { 4646 if (fakePublic && outTypeSpecFlags) { 4647 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC; 4648 } 4649 return identifier; 4650 } 4651 } while (strzcmp16(attr.string(), attr.size(), targetType, targetTypeLen) == 0 4652 && (targetType = attrPrivate.string()) 4653 && (targetTypeLen = attrPrivate.size()) 4654 ); 4655 } 4656 break; 4657 } 4658 return 0; 4659} 4660 4661uint32_t ResTable::findEntry(const PackageGroup* group, ssize_t typeIndex, const char16_t* name, 4662 size_t nameLen, uint32_t* outTypeSpecFlags) const { 4663 const TypeList& typeList = group->types[typeIndex]; 4664 const size_t typeCount = typeList.size(); 4665 for (size_t i = 0; i < typeCount; i++) { 4666 const Type* t = typeList[i]; 4667 const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen); 4668 if (ei < 0) { 4669 continue; 4670 } 4671 4672 const size_t configCount = t->configs.size(); 4673 for (size_t j = 0; j < configCount; j++) { 4674 const TypeVariant tv(t->configs[j]); 4675 for (TypeVariant::iterator iter = tv.beginEntries(); 4676 iter != tv.endEntries(); 4677 iter++) { 4678 const ResTable_entry* entry = *iter; 4679 if (entry == NULL) { 4680 continue; 4681 } 4682 4683 if (dtohl(entry->key.index) == (size_t) ei) { 4684 uint32_t resId = Res_MAKEID(group->id - 1, typeIndex, iter.index()); 4685 if (outTypeSpecFlags) { 4686 Entry result; 4687 if (getEntry(group, typeIndex, iter.index(), NULL, &result) != NO_ERROR) { 4688 ALOGW("Failed to find spec flags for 0x%08x", resId); 4689 return 0; 4690 } 4691 *outTypeSpecFlags = result.specFlags; 4692 } 4693 return resId; 4694 } 4695 } 4696 } 4697 } 4698 return 0; 4699} 4700 4701bool ResTable::expandResourceRef(const char16_t* refStr, size_t refLen, 4702 String16* outPackage, 4703 String16* outType, 4704 String16* outName, 4705 const String16* defType, 4706 const String16* defPackage, 4707 const char** outErrorMsg, 4708 bool* outPublicOnly) 4709{ 4710 const char16_t* packageEnd = NULL; 4711 const char16_t* typeEnd = NULL; 4712 const char16_t* p = refStr; 4713 const char16_t* const end = p + refLen; 4714 while (p < end) { 4715 if (*p == ':') packageEnd = p; 4716 else if (*p == '/') { 4717 typeEnd = p; 4718 break; 4719 } 4720 p++; 4721 } 4722 p = refStr; 4723 if (*p == '@') p++; 4724 4725 if (outPublicOnly != NULL) { 4726 *outPublicOnly = true; 4727 } 4728 if (*p == '*') { 4729 p++; 4730 if (outPublicOnly != NULL) { 4731 *outPublicOnly = false; 4732 } 4733 } 4734 4735 if (packageEnd) { 4736 *outPackage = String16(p, packageEnd-p); 4737 p = packageEnd+1; 4738 } else { 4739 if (!defPackage) { 4740 if (outErrorMsg) { 4741 *outErrorMsg = "No resource package specified"; 4742 } 4743 return false; 4744 } 4745 *outPackage = *defPackage; 4746 } 4747 if (typeEnd) { 4748 *outType = String16(p, typeEnd-p); 4749 p = typeEnd+1; 4750 } else { 4751 if (!defType) { 4752 if (outErrorMsg) { 4753 *outErrorMsg = "No resource type specified"; 4754 } 4755 return false; 4756 } 4757 *outType = *defType; 4758 } 4759 *outName = String16(p, end-p); 4760 if(**outPackage == 0) { 4761 if(outErrorMsg) { 4762 *outErrorMsg = "Resource package cannot be an empty string"; 4763 } 4764 return false; 4765 } 4766 if(**outType == 0) { 4767 if(outErrorMsg) { 4768 *outErrorMsg = "Resource type cannot be an empty string"; 4769 } 4770 return false; 4771 } 4772 if(**outName == 0) { 4773 if(outErrorMsg) { 4774 *outErrorMsg = "Resource id cannot be an empty string"; 4775 } 4776 return false; 4777 } 4778 return true; 4779} 4780 4781static uint32_t get_hex(char c, bool* outError) 4782{ 4783 if (c >= '0' && c <= '9') { 4784 return c - '0'; 4785 } else if (c >= 'a' && c <= 'f') { 4786 return c - 'a' + 0xa; 4787 } else if (c >= 'A' && c <= 'F') { 4788 return c - 'A' + 0xa; 4789 } 4790 *outError = true; 4791 return 0; 4792} 4793 4794struct unit_entry 4795{ 4796 const char* name; 4797 size_t len; 4798 uint8_t type; 4799 uint32_t unit; 4800 float scale; 4801}; 4802 4803static const unit_entry unitNames[] = { 4804 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f }, 4805 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 4806 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 4807 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f }, 4808 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f }, 4809 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f }, 4810 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f }, 4811 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 }, 4812 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 }, 4813 { NULL, 0, 0, 0, 0 } 4814}; 4815 4816static bool parse_unit(const char* str, Res_value* outValue, 4817 float* outScale, const char** outEnd) 4818{ 4819 const char* end = str; 4820 while (*end != 0 && !isspace((unsigned char)*end)) { 4821 end++; 4822 } 4823 const size_t len = end-str; 4824 4825 const char* realEnd = end; 4826 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) { 4827 realEnd++; 4828 } 4829 if (*realEnd != 0) { 4830 return false; 4831 } 4832 4833 const unit_entry* cur = unitNames; 4834 while (cur->name) { 4835 if (len == cur->len && strncmp(cur->name, str, len) == 0) { 4836 outValue->dataType = cur->type; 4837 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT; 4838 *outScale = cur->scale; 4839 *outEnd = end; 4840 //printf("Found unit %s for %s\n", cur->name, str); 4841 return true; 4842 } 4843 cur++; 4844 } 4845 4846 return false; 4847} 4848 4849bool U16StringToInt(const char16_t* s, size_t len, Res_value* outValue) 4850{ 4851 while (len > 0 && isspace16(*s)) { 4852 s++; 4853 len--; 4854 } 4855 4856 if (len <= 0) { 4857 return false; 4858 } 4859 4860 size_t i = 0; 4861 int64_t val = 0; 4862 bool neg = false; 4863 4864 if (*s == '-') { 4865 neg = true; 4866 i++; 4867 } 4868 4869 if (s[i] < '0' || s[i] > '9') { 4870 return false; 4871 } 4872 4873 static_assert(std::is_same<uint32_t, Res_value::data_type>::value, 4874 "Res_value::data_type has changed. The range checks in this " 4875 "function are no longer correct."); 4876 4877 // Decimal or hex? 4878 bool isHex; 4879 if (len > 1 && s[i] == '0' && s[i+1] == 'x') { 4880 isHex = true; 4881 i += 2; 4882 4883 if (neg) { 4884 return false; 4885 } 4886 4887 if (i == len) { 4888 // Just u"0x" 4889 return false; 4890 } 4891 4892 bool error = false; 4893 while (i < len && !error) { 4894 val = (val*16) + get_hex(s[i], &error); 4895 i++; 4896 4897 if (val > std::numeric_limits<uint32_t>::max()) { 4898 return false; 4899 } 4900 } 4901 if (error) { 4902 return false; 4903 } 4904 } else { 4905 isHex = false; 4906 while (i < len) { 4907 if (s[i] < '0' || s[i] > '9') { 4908 return false; 4909 } 4910 val = (val*10) + s[i]-'0'; 4911 i++; 4912 4913 if ((neg && -val < std::numeric_limits<int32_t>::min()) || 4914 (!neg && val > std::numeric_limits<int32_t>::max())) { 4915 return false; 4916 } 4917 } 4918 } 4919 4920 if (neg) val = -val; 4921 4922 while (i < len && isspace16(s[i])) { 4923 i++; 4924 } 4925 4926 if (i != len) { 4927 return false; 4928 } 4929 4930 if (outValue) { 4931 outValue->dataType = 4932 isHex ? outValue->TYPE_INT_HEX : outValue->TYPE_INT_DEC; 4933 outValue->data = static_cast<Res_value::data_type>(val); 4934 } 4935 return true; 4936} 4937 4938bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue) 4939{ 4940 return U16StringToInt(s, len, outValue); 4941} 4942 4943bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue) 4944{ 4945 while (len > 0 && isspace16(*s)) { 4946 s++; 4947 len--; 4948 } 4949 4950 if (len <= 0) { 4951 return false; 4952 } 4953 4954 char buf[128]; 4955 int i=0; 4956 while (len > 0 && *s != 0 && i < 126) { 4957 if (*s > 255) { 4958 return false; 4959 } 4960 buf[i++] = *s++; 4961 len--; 4962 } 4963 4964 if (len > 0) { 4965 return false; 4966 } 4967 if ((buf[0] < '0' || buf[0] > '9') && buf[0] != '.' && buf[0] != '-' && buf[0] != '+') { 4968 return false; 4969 } 4970 4971 buf[i] = 0; 4972 const char* end; 4973 float f = strtof(buf, (char**)&end); 4974 4975 if (*end != 0 && !isspace((unsigned char)*end)) { 4976 // Might be a unit... 4977 float scale; 4978 if (parse_unit(end, outValue, &scale, &end)) { 4979 f *= scale; 4980 const bool neg = f < 0; 4981 if (neg) f = -f; 4982 uint64_t bits = (uint64_t)(f*(1<<23)+.5f); 4983 uint32_t radix; 4984 uint32_t shift; 4985 if ((bits&0x7fffff) == 0) { 4986 // Always use 23p0 if there is no fraction, just to make 4987 // things easier to read. 4988 radix = Res_value::COMPLEX_RADIX_23p0; 4989 shift = 23; 4990 } else if ((bits&0xffffffffff800000LL) == 0) { 4991 // Magnitude is zero -- can fit in 0 bits of precision. 4992 radix = Res_value::COMPLEX_RADIX_0p23; 4993 shift = 0; 4994 } else if ((bits&0xffffffff80000000LL) == 0) { 4995 // Magnitude can fit in 8 bits of precision. 4996 radix = Res_value::COMPLEX_RADIX_8p15; 4997 shift = 8; 4998 } else if ((bits&0xffffff8000000000LL) == 0) { 4999 // Magnitude can fit in 16 bits of precision. 5000 radix = Res_value::COMPLEX_RADIX_16p7; 5001 shift = 16; 5002 } else { 5003 // Magnitude needs entire range, so no fractional part. 5004 radix = Res_value::COMPLEX_RADIX_23p0; 5005 shift = 23; 5006 } 5007 int32_t mantissa = (int32_t)( 5008 (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK); 5009 if (neg) { 5010 mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK; 5011 } 5012 outValue->data |= 5013 (radix<<Res_value::COMPLEX_RADIX_SHIFT) 5014 | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT); 5015 //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n", 5016 // f * (neg ? -1 : 1), bits, f*(1<<23), 5017 // radix, shift, outValue->data); 5018 return true; 5019 } 5020 return false; 5021 } 5022 5023 while (*end != 0 && isspace((unsigned char)*end)) { 5024 end++; 5025 } 5026 5027 if (*end == 0) { 5028 if (outValue) { 5029 outValue->dataType = outValue->TYPE_FLOAT; 5030 *(float*)(&outValue->data) = f; 5031 return true; 5032 } 5033 } 5034 5035 return false; 5036} 5037 5038bool ResTable::stringToValue(Res_value* outValue, String16* outString, 5039 const char16_t* s, size_t len, 5040 bool preserveSpaces, bool coerceType, 5041 uint32_t attrID, 5042 const String16* defType, 5043 const String16* defPackage, 5044 Accessor* accessor, 5045 void* accessorCookie, 5046 uint32_t attrType, 5047 bool enforcePrivate) const 5048{ 5049 bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting(); 5050 const char* errorMsg = NULL; 5051 5052 outValue->size = sizeof(Res_value); 5053 outValue->res0 = 0; 5054 5055 // First strip leading/trailing whitespace. Do this before handling 5056 // escapes, so they can be used to force whitespace into the string. 5057 if (!preserveSpaces) { 5058 while (len > 0 && isspace16(*s)) { 5059 s++; 5060 len--; 5061 } 5062 while (len > 0 && isspace16(s[len-1])) { 5063 len--; 5064 } 5065 // If the string ends with '\', then we keep the space after it. 5066 if (len > 0 && s[len-1] == '\\' && s[len] != 0) { 5067 len++; 5068 } 5069 } 5070 5071 //printf("Value for: %s\n", String8(s, len).string()); 5072 5073 uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED; 5074 uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff; 5075 bool fromAccessor = false; 5076 if (attrID != 0 && !Res_INTERNALID(attrID)) { 5077 const ssize_t p = getResourcePackageIndex(attrID); 5078 const bag_entry* bag; 5079 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 5080 //printf("For attr 0x%08x got bag of %d\n", attrID, cnt); 5081 if (cnt >= 0) { 5082 while (cnt > 0) { 5083 //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data); 5084 switch (bag->map.name.ident) { 5085 case ResTable_map::ATTR_TYPE: 5086 attrType = bag->map.value.data; 5087 break; 5088 case ResTable_map::ATTR_MIN: 5089 attrMin = bag->map.value.data; 5090 break; 5091 case ResTable_map::ATTR_MAX: 5092 attrMax = bag->map.value.data; 5093 break; 5094 case ResTable_map::ATTR_L10N: 5095 l10nReq = bag->map.value.data; 5096 break; 5097 } 5098 bag++; 5099 cnt--; 5100 } 5101 unlockBag(bag); 5102 } else if (accessor && accessor->getAttributeType(attrID, &attrType)) { 5103 fromAccessor = true; 5104 if (attrType == ResTable_map::TYPE_ENUM 5105 || attrType == ResTable_map::TYPE_FLAGS 5106 || attrType == ResTable_map::TYPE_INTEGER) { 5107 accessor->getAttributeMin(attrID, &attrMin); 5108 accessor->getAttributeMax(attrID, &attrMax); 5109 } 5110 if (localizationSetting) { 5111 l10nReq = accessor->getAttributeL10N(attrID); 5112 } 5113 } 5114 } 5115 5116 const bool canStringCoerce = 5117 coerceType && (attrType&ResTable_map::TYPE_STRING) != 0; 5118 5119 if (*s == '@') { 5120 outValue->dataType = outValue->TYPE_REFERENCE; 5121 5122 // Note: we don't check attrType here because the reference can 5123 // be to any other type; we just need to count on the client making 5124 // sure the referenced type is correct. 5125 5126 //printf("Looking up ref: %s\n", String8(s, len).string()); 5127 5128 // It's a reference! 5129 if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') { 5130 // Special case @null as undefined. This will be converted by 5131 // AssetManager to TYPE_NULL with data DATA_NULL_UNDEFINED. 5132 outValue->data = 0; 5133 return true; 5134 } else if (len == 6 && s[1]=='e' && s[2]=='m' && s[3]=='p' && s[4]=='t' && s[5]=='y') { 5135 // Special case @empty as explicitly defined empty value. 5136 outValue->dataType = Res_value::TYPE_NULL; 5137 outValue->data = Res_value::DATA_NULL_EMPTY; 5138 return true; 5139 } else { 5140 bool createIfNotFound = false; 5141 const char16_t* resourceRefName; 5142 int resourceNameLen; 5143 if (len > 2 && s[1] == '+') { 5144 createIfNotFound = true; 5145 resourceRefName = s + 2; 5146 resourceNameLen = len - 2; 5147 } else if (len > 2 && s[1] == '*') { 5148 enforcePrivate = false; 5149 resourceRefName = s + 2; 5150 resourceNameLen = len - 2; 5151 } else { 5152 createIfNotFound = false; 5153 resourceRefName = s + 1; 5154 resourceNameLen = len - 1; 5155 } 5156 String16 package, type, name; 5157 if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name, 5158 defType, defPackage, &errorMsg)) { 5159 if (accessor != NULL) { 5160 accessor->reportError(accessorCookie, errorMsg); 5161 } 5162 return false; 5163 } 5164 5165 uint32_t specFlags = 0; 5166 uint32_t rid = identifierForName(name.string(), name.size(), type.string(), 5167 type.size(), package.string(), package.size(), &specFlags); 5168 if (rid != 0) { 5169 if (enforcePrivate) { 5170 if (accessor == NULL || accessor->getAssetsPackage() != package) { 5171 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) { 5172 if (accessor != NULL) { 5173 accessor->reportError(accessorCookie, "Resource is not public."); 5174 } 5175 return false; 5176 } 5177 } 5178 } 5179 5180 if (accessor) { 5181 rid = Res_MAKEID( 5182 accessor->getRemappedPackage(Res_GETPACKAGE(rid)), 5183 Res_GETTYPE(rid), Res_GETENTRY(rid)); 5184 if (kDebugTableNoisy) { 5185 ALOGI("Incl %s:%s/%s: 0x%08x\n", 5186 String8(package).string(), String8(type).string(), 5187 String8(name).string(), rid); 5188 } 5189 } 5190 5191 uint32_t packageId = Res_GETPACKAGE(rid) + 1; 5192 if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) { 5193 outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE; 5194 } 5195 outValue->data = rid; 5196 return true; 5197 } 5198 5199 if (accessor) { 5200 uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name, 5201 createIfNotFound); 5202 if (rid != 0) { 5203 if (kDebugTableNoisy) { 5204 ALOGI("Pckg %s:%s/%s: 0x%08x\n", 5205 String8(package).string(), String8(type).string(), 5206 String8(name).string(), rid); 5207 } 5208 uint32_t packageId = Res_GETPACKAGE(rid) + 1; 5209 if (packageId == 0x00) { 5210 outValue->data = rid; 5211 outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE; 5212 return true; 5213 } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) { 5214 // We accept packageId's generated as 0x01 in order to support 5215 // building the android system resources 5216 outValue->data = rid; 5217 return true; 5218 } 5219 } 5220 } 5221 } 5222 5223 if (accessor != NULL) { 5224 accessor->reportError(accessorCookie, "No resource found that matches the given name"); 5225 } 5226 return false; 5227 } 5228 5229 // if we got to here, and localization is required and it's not a reference, 5230 // complain and bail. 5231 if (l10nReq == ResTable_map::L10N_SUGGESTED) { 5232 if (localizationSetting) { 5233 if (accessor != NULL) { 5234 accessor->reportError(accessorCookie, "This attribute must be localized."); 5235 } 5236 } 5237 } 5238 5239 if (*s == '#') { 5240 // It's a color! Convert to an integer of the form 0xaarrggbb. 5241 uint32_t color = 0; 5242 bool error = false; 5243 if (len == 4) { 5244 outValue->dataType = outValue->TYPE_INT_COLOR_RGB4; 5245 color |= 0xFF000000; 5246 color |= get_hex(s[1], &error) << 20; 5247 color |= get_hex(s[1], &error) << 16; 5248 color |= get_hex(s[2], &error) << 12; 5249 color |= get_hex(s[2], &error) << 8; 5250 color |= get_hex(s[3], &error) << 4; 5251 color |= get_hex(s[3], &error); 5252 } else if (len == 5) { 5253 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4; 5254 color |= get_hex(s[1], &error) << 28; 5255 color |= get_hex(s[1], &error) << 24; 5256 color |= get_hex(s[2], &error) << 20; 5257 color |= get_hex(s[2], &error) << 16; 5258 color |= get_hex(s[3], &error) << 12; 5259 color |= get_hex(s[3], &error) << 8; 5260 color |= get_hex(s[4], &error) << 4; 5261 color |= get_hex(s[4], &error); 5262 } else if (len == 7) { 5263 outValue->dataType = outValue->TYPE_INT_COLOR_RGB8; 5264 color |= 0xFF000000; 5265 color |= get_hex(s[1], &error) << 20; 5266 color |= get_hex(s[2], &error) << 16; 5267 color |= get_hex(s[3], &error) << 12; 5268 color |= get_hex(s[4], &error) << 8; 5269 color |= get_hex(s[5], &error) << 4; 5270 color |= get_hex(s[6], &error); 5271 } else if (len == 9) { 5272 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8; 5273 color |= get_hex(s[1], &error) << 28; 5274 color |= get_hex(s[2], &error) << 24; 5275 color |= get_hex(s[3], &error) << 20; 5276 color |= get_hex(s[4], &error) << 16; 5277 color |= get_hex(s[5], &error) << 12; 5278 color |= get_hex(s[6], &error) << 8; 5279 color |= get_hex(s[7], &error) << 4; 5280 color |= get_hex(s[8], &error); 5281 } else { 5282 error = true; 5283 } 5284 if (!error) { 5285 if ((attrType&ResTable_map::TYPE_COLOR) == 0) { 5286 if (!canStringCoerce) { 5287 if (accessor != NULL) { 5288 accessor->reportError(accessorCookie, 5289 "Color types not allowed"); 5290 } 5291 return false; 5292 } 5293 } else { 5294 outValue->data = color; 5295 //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color); 5296 return true; 5297 } 5298 } else { 5299 if ((attrType&ResTable_map::TYPE_COLOR) != 0) { 5300 if (accessor != NULL) { 5301 accessor->reportError(accessorCookie, "Color value not valid --" 5302 " must be #rgb, #argb, #rrggbb, or #aarrggbb"); 5303 } 5304 #if 0 5305 fprintf(stderr, "%s: Color ID %s value %s is not valid\n", 5306 "Resource File", //(const char*)in->getPrintableSource(), 5307 String8(*curTag).string(), 5308 String8(s, len).string()); 5309 #endif 5310 return false; 5311 } 5312 } 5313 } 5314 5315 if (*s == '?') { 5316 outValue->dataType = outValue->TYPE_ATTRIBUTE; 5317 5318 // Note: we don't check attrType here because the reference can 5319 // be to any other type; we just need to count on the client making 5320 // sure the referenced type is correct. 5321 5322 //printf("Looking up attr: %s\n", String8(s, len).string()); 5323 5324 static const String16 attr16("attr"); 5325 String16 package, type, name; 5326 if (!expandResourceRef(s+1, len-1, &package, &type, &name, 5327 &attr16, defPackage, &errorMsg)) { 5328 if (accessor != NULL) { 5329 accessor->reportError(accessorCookie, errorMsg); 5330 } 5331 return false; 5332 } 5333 5334 //printf("Pkg: %s, Type: %s, Name: %s\n", 5335 // String8(package).string(), String8(type).string(), 5336 // String8(name).string()); 5337 uint32_t specFlags = 0; 5338 uint32_t rid = 5339 identifierForName(name.string(), name.size(), 5340 type.string(), type.size(), 5341 package.string(), package.size(), &specFlags); 5342 if (rid != 0) { 5343 if (enforcePrivate) { 5344 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) { 5345 if (accessor != NULL) { 5346 accessor->reportError(accessorCookie, "Attribute is not public."); 5347 } 5348 return false; 5349 } 5350 } 5351 if (!accessor) { 5352 outValue->data = rid; 5353 return true; 5354 } 5355 rid = Res_MAKEID( 5356 accessor->getRemappedPackage(Res_GETPACKAGE(rid)), 5357 Res_GETTYPE(rid), Res_GETENTRY(rid)); 5358 //printf("Incl %s:%s/%s: 0x%08x\n", 5359 // String8(package).string(), String8(type).string(), 5360 // String8(name).string(), rid); 5361 outValue->data = rid; 5362 return true; 5363 } 5364 5365 if (accessor) { 5366 uint32_t rid = accessor->getCustomResource(package, type, name); 5367 if (rid != 0) { 5368 //printf("Mine %s:%s/%s: 0x%08x\n", 5369 // String8(package).string(), String8(type).string(), 5370 // String8(name).string(), rid); 5371 outValue->data = rid; 5372 return true; 5373 } 5374 } 5375 5376 if (accessor != NULL) { 5377 accessor->reportError(accessorCookie, "No resource found that matches the given name"); 5378 } 5379 return false; 5380 } 5381 5382 if (stringToInt(s, len, outValue)) { 5383 if ((attrType&ResTable_map::TYPE_INTEGER) == 0) { 5384 // If this type does not allow integers, but does allow floats, 5385 // fall through on this error case because the float type should 5386 // be able to accept any integer value. 5387 if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) { 5388 if (accessor != NULL) { 5389 accessor->reportError(accessorCookie, "Integer types not allowed"); 5390 } 5391 return false; 5392 } 5393 } else { 5394 if (((int32_t)outValue->data) < ((int32_t)attrMin) 5395 || ((int32_t)outValue->data) > ((int32_t)attrMax)) { 5396 if (accessor != NULL) { 5397 accessor->reportError(accessorCookie, "Integer value out of range"); 5398 } 5399 return false; 5400 } 5401 return true; 5402 } 5403 } 5404 5405 if (stringToFloat(s, len, outValue)) { 5406 if (outValue->dataType == Res_value::TYPE_DIMENSION) { 5407 if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) { 5408 return true; 5409 } 5410 if (!canStringCoerce) { 5411 if (accessor != NULL) { 5412 accessor->reportError(accessorCookie, "Dimension types not allowed"); 5413 } 5414 return false; 5415 } 5416 } else if (outValue->dataType == Res_value::TYPE_FRACTION) { 5417 if ((attrType&ResTable_map::TYPE_FRACTION) != 0) { 5418 return true; 5419 } 5420 if (!canStringCoerce) { 5421 if (accessor != NULL) { 5422 accessor->reportError(accessorCookie, "Fraction types not allowed"); 5423 } 5424 return false; 5425 } 5426 } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) { 5427 if (!canStringCoerce) { 5428 if (accessor != NULL) { 5429 accessor->reportError(accessorCookie, "Float types not allowed"); 5430 } 5431 return false; 5432 } 5433 } else { 5434 return true; 5435 } 5436 } 5437 5438 if (len == 4) { 5439 if ((s[0] == 't' || s[0] == 'T') && 5440 (s[1] == 'r' || s[1] == 'R') && 5441 (s[2] == 'u' || s[2] == 'U') && 5442 (s[3] == 'e' || s[3] == 'E')) { 5443 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) { 5444 if (!canStringCoerce) { 5445 if (accessor != NULL) { 5446 accessor->reportError(accessorCookie, "Boolean types not allowed"); 5447 } 5448 return false; 5449 } 5450 } else { 5451 outValue->dataType = outValue->TYPE_INT_BOOLEAN; 5452 outValue->data = (uint32_t)-1; 5453 return true; 5454 } 5455 } 5456 } 5457 5458 if (len == 5) { 5459 if ((s[0] == 'f' || s[0] == 'F') && 5460 (s[1] == 'a' || s[1] == 'A') && 5461 (s[2] == 'l' || s[2] == 'L') && 5462 (s[3] == 's' || s[3] == 'S') && 5463 (s[4] == 'e' || s[4] == 'E')) { 5464 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) { 5465 if (!canStringCoerce) { 5466 if (accessor != NULL) { 5467 accessor->reportError(accessorCookie, "Boolean types not allowed"); 5468 } 5469 return false; 5470 } 5471 } else { 5472 outValue->dataType = outValue->TYPE_INT_BOOLEAN; 5473 outValue->data = 0; 5474 return true; 5475 } 5476 } 5477 } 5478 5479 if ((attrType&ResTable_map::TYPE_ENUM) != 0) { 5480 const ssize_t p = getResourcePackageIndex(attrID); 5481 const bag_entry* bag; 5482 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 5483 //printf("Got %d for enum\n", cnt); 5484 if (cnt >= 0) { 5485 resource_name rname; 5486 while (cnt > 0) { 5487 if (!Res_INTERNALID(bag->map.name.ident)) { 5488 //printf("Trying attr #%08x\n", bag->map.name.ident); 5489 if (getResourceName(bag->map.name.ident, false, &rname)) { 5490 #if 0 5491 printf("Matching %s against %s (0x%08x)\n", 5492 String8(s, len).string(), 5493 String8(rname.name, rname.nameLen).string(), 5494 bag->map.name.ident); 5495 #endif 5496 if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) { 5497 outValue->dataType = bag->map.value.dataType; 5498 outValue->data = bag->map.value.data; 5499 unlockBag(bag); 5500 return true; 5501 } 5502 } 5503 5504 } 5505 bag++; 5506 cnt--; 5507 } 5508 unlockBag(bag); 5509 } 5510 5511 if (fromAccessor) { 5512 if (accessor->getAttributeEnum(attrID, s, len, outValue)) { 5513 return true; 5514 } 5515 } 5516 } 5517 5518 if ((attrType&ResTable_map::TYPE_FLAGS) != 0) { 5519 const ssize_t p = getResourcePackageIndex(attrID); 5520 const bag_entry* bag; 5521 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 5522 //printf("Got %d for flags\n", cnt); 5523 if (cnt >= 0) { 5524 bool failed = false; 5525 resource_name rname; 5526 outValue->dataType = Res_value::TYPE_INT_HEX; 5527 outValue->data = 0; 5528 const char16_t* end = s + len; 5529 const char16_t* pos = s; 5530 while (pos < end && !failed) { 5531 const char16_t* start = pos; 5532 pos++; 5533 while (pos < end && *pos != '|') { 5534 pos++; 5535 } 5536 //printf("Looking for: %s\n", String8(start, pos-start).string()); 5537 const bag_entry* bagi = bag; 5538 ssize_t i; 5539 for (i=0; i<cnt; i++, bagi++) { 5540 if (!Res_INTERNALID(bagi->map.name.ident)) { 5541 //printf("Trying attr #%08x\n", bagi->map.name.ident); 5542 if (getResourceName(bagi->map.name.ident, false, &rname)) { 5543 #if 0 5544 printf("Matching %s against %s (0x%08x)\n", 5545 String8(start,pos-start).string(), 5546 String8(rname.name, rname.nameLen).string(), 5547 bagi->map.name.ident); 5548 #endif 5549 if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) { 5550 outValue->data |= bagi->map.value.data; 5551 break; 5552 } 5553 } 5554 } 5555 } 5556 if (i >= cnt) { 5557 // Didn't find this flag identifier. 5558 failed = true; 5559 } 5560 if (pos < end) { 5561 pos++; 5562 } 5563 } 5564 unlockBag(bag); 5565 if (!failed) { 5566 //printf("Final flag value: 0x%lx\n", outValue->data); 5567 return true; 5568 } 5569 } 5570 5571 5572 if (fromAccessor) { 5573 if (accessor->getAttributeFlags(attrID, s, len, outValue)) { 5574 //printf("Final flag value: 0x%lx\n", outValue->data); 5575 return true; 5576 } 5577 } 5578 } 5579 5580 if ((attrType&ResTable_map::TYPE_STRING) == 0) { 5581 if (accessor != NULL) { 5582 accessor->reportError(accessorCookie, "String types not allowed"); 5583 } 5584 return false; 5585 } 5586 5587 // Generic string handling... 5588 outValue->dataType = outValue->TYPE_STRING; 5589 if (outString) { 5590 bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg); 5591 if (accessor != NULL) { 5592 accessor->reportError(accessorCookie, errorMsg); 5593 } 5594 return failed; 5595 } 5596 5597 return true; 5598} 5599 5600bool ResTable::collectString(String16* outString, 5601 const char16_t* s, size_t len, 5602 bool preserveSpaces, 5603 const char** outErrorMsg, 5604 bool append) 5605{ 5606 String16 tmp; 5607 5608 char quoted = 0; 5609 const char16_t* p = s; 5610 while (p < (s+len)) { 5611 while (p < (s+len)) { 5612 const char16_t c = *p; 5613 if (c == '\\') { 5614 break; 5615 } 5616 if (!preserveSpaces) { 5617 if (quoted == 0 && isspace16(c) 5618 && (c != ' ' || isspace16(*(p+1)))) { 5619 break; 5620 } 5621 if (c == '"' && (quoted == 0 || quoted == '"')) { 5622 break; 5623 } 5624 if (c == '\'' && (quoted == 0 || quoted == '\'')) { 5625 /* 5626 * In practice, when people write ' instead of \' 5627 * in a string, they are doing it by accident 5628 * instead of really meaning to use ' as a quoting 5629 * character. Warn them so they don't lose it. 5630 */ 5631 if (outErrorMsg) { 5632 *outErrorMsg = "Apostrophe not preceded by \\"; 5633 } 5634 return false; 5635 } 5636 } 5637 p++; 5638 } 5639 if (p < (s+len)) { 5640 if (p > s) { 5641 tmp.append(String16(s, p-s)); 5642 } 5643 if (!preserveSpaces && (*p == '"' || *p == '\'')) { 5644 if (quoted == 0) { 5645 quoted = *p; 5646 } else { 5647 quoted = 0; 5648 } 5649 p++; 5650 } else if (!preserveSpaces && isspace16(*p)) { 5651 // Space outside of a quote -- consume all spaces and 5652 // leave a single plain space char. 5653 tmp.append(String16(" ")); 5654 p++; 5655 while (p < (s+len) && isspace16(*p)) { 5656 p++; 5657 } 5658 } else if (*p == '\\') { 5659 p++; 5660 if (p < (s+len)) { 5661 switch (*p) { 5662 case 't': 5663 tmp.append(String16("\t")); 5664 break; 5665 case 'n': 5666 tmp.append(String16("\n")); 5667 break; 5668 case '#': 5669 tmp.append(String16("#")); 5670 break; 5671 case '@': 5672 tmp.append(String16("@")); 5673 break; 5674 case '?': 5675 tmp.append(String16("?")); 5676 break; 5677 case '"': 5678 tmp.append(String16("\"")); 5679 break; 5680 case '\'': 5681 tmp.append(String16("'")); 5682 break; 5683 case '\\': 5684 tmp.append(String16("\\")); 5685 break; 5686 case 'u': 5687 { 5688 char16_t chr = 0; 5689 int i = 0; 5690 while (i < 4 && p[1] != 0) { 5691 p++; 5692 i++; 5693 int c; 5694 if (*p >= '0' && *p <= '9') { 5695 c = *p - '0'; 5696 } else if (*p >= 'a' && *p <= 'f') { 5697 c = *p - 'a' + 10; 5698 } else if (*p >= 'A' && *p <= 'F') { 5699 c = *p - 'A' + 10; 5700 } else { 5701 if (outErrorMsg) { 5702 *outErrorMsg = "Bad character in \\u unicode escape sequence"; 5703 } 5704 return false; 5705 } 5706 chr = (chr<<4) | c; 5707 } 5708 tmp.append(String16(&chr, 1)); 5709 } break; 5710 default: 5711 // ignore unknown escape chars. 5712 break; 5713 } 5714 p++; 5715 } 5716 } 5717 len -= (p-s); 5718 s = p; 5719 } 5720 } 5721 5722 if (tmp.size() != 0) { 5723 if (len > 0) { 5724 tmp.append(String16(s, len)); 5725 } 5726 if (append) { 5727 outString->append(tmp); 5728 } else { 5729 outString->setTo(tmp); 5730 } 5731 } else { 5732 if (append) { 5733 outString->append(String16(s, len)); 5734 } else { 5735 outString->setTo(s, len); 5736 } 5737 } 5738 5739 return true; 5740} 5741 5742size_t ResTable::getBasePackageCount() const 5743{ 5744 if (mError != NO_ERROR) { 5745 return 0; 5746 } 5747 return mPackageGroups.size(); 5748} 5749 5750const String16 ResTable::getBasePackageName(size_t idx) const 5751{ 5752 if (mError != NO_ERROR) { 5753 return String16(); 5754 } 5755 LOG_FATAL_IF(idx >= mPackageGroups.size(), 5756 "Requested package index %d past package count %d", 5757 (int)idx, (int)mPackageGroups.size()); 5758 return mPackageGroups[idx]->name; 5759} 5760 5761uint32_t ResTable::getBasePackageId(size_t idx) const 5762{ 5763 if (mError != NO_ERROR) { 5764 return 0; 5765 } 5766 LOG_FATAL_IF(idx >= mPackageGroups.size(), 5767 "Requested package index %d past package count %d", 5768 (int)idx, (int)mPackageGroups.size()); 5769 return mPackageGroups[idx]->id; 5770} 5771 5772uint32_t ResTable::getLastTypeIdForPackage(size_t idx) const 5773{ 5774 if (mError != NO_ERROR) { 5775 return 0; 5776 } 5777 LOG_FATAL_IF(idx >= mPackageGroups.size(), 5778 "Requested package index %d past package count %d", 5779 (int)idx, (int)mPackageGroups.size()); 5780 const PackageGroup* const group = mPackageGroups[idx]; 5781 return group->largestTypeId; 5782} 5783 5784size_t ResTable::getTableCount() const 5785{ 5786 return mHeaders.size(); 5787} 5788 5789const ResStringPool* ResTable::getTableStringBlock(size_t index) const 5790{ 5791 return &mHeaders[index]->values; 5792} 5793 5794int32_t ResTable::getTableCookie(size_t index) const 5795{ 5796 return mHeaders[index]->cookie; 5797} 5798 5799const DynamicRefTable* ResTable::getDynamicRefTableForCookie(int32_t cookie) const 5800{ 5801 const size_t N = mPackageGroups.size(); 5802 for (size_t i = 0; i < N; i++) { 5803 const PackageGroup* pg = mPackageGroups[i]; 5804 size_t M = pg->packages.size(); 5805 for (size_t j = 0; j < M; j++) { 5806 if (pg->packages[j]->header->cookie == cookie) { 5807 return &pg->dynamicRefTable; 5808 } 5809 } 5810 } 5811 return NULL; 5812} 5813 5814static bool compareResTableConfig(const ResTable_config& a, const ResTable_config& b) { 5815 return a.compare(b) < 0; 5816} 5817 5818void ResTable::getConfigurations(Vector<ResTable_config>* configs, bool ignoreMipmap, 5819 bool ignoreAndroidPackage, bool includeSystemConfigs) const { 5820 const size_t packageCount = mPackageGroups.size(); 5821 String16 android("android"); 5822 for (size_t i = 0; i < packageCount; i++) { 5823 const PackageGroup* packageGroup = mPackageGroups[i]; 5824 if (ignoreAndroidPackage && android == packageGroup->name) { 5825 continue; 5826 } 5827 if (!includeSystemConfigs && packageGroup->isSystemAsset) { 5828 continue; 5829 } 5830 const size_t typeCount = packageGroup->types.size(); 5831 for (size_t j = 0; j < typeCount; j++) { 5832 const TypeList& typeList = packageGroup->types[j]; 5833 const size_t numTypes = typeList.size(); 5834 for (size_t k = 0; k < numTypes; k++) { 5835 const Type* type = typeList[k]; 5836 const ResStringPool& typeStrings = type->package->typeStrings; 5837 if (ignoreMipmap && typeStrings.string8ObjectAt( 5838 type->typeSpec->id - 1) == "mipmap") { 5839 continue; 5840 } 5841 5842 const size_t numConfigs = type->configs.size(); 5843 for (size_t m = 0; m < numConfigs; m++) { 5844 const ResTable_type* config = type->configs[m]; 5845 ResTable_config cfg; 5846 memset(&cfg, 0, sizeof(ResTable_config)); 5847 cfg.copyFromDtoH(config->config); 5848 5849 auto iter = std::lower_bound(configs->begin(), configs->end(), cfg, 5850 compareResTableConfig); 5851 if (iter == configs->end() || iter->compare(cfg) != 0) { 5852 configs->insertAt(cfg, std::distance(configs->begin(), iter)); 5853 } 5854 } 5855 } 5856 } 5857 } 5858} 5859 5860static bool compareString8AndCString(const String8& str, const char* cStr) { 5861 return strcmp(str.string(), cStr) < 0; 5862} 5863 5864void ResTable::getLocales(Vector<String8>* locales, bool includeSystemLocales) const 5865{ 5866 Vector<ResTable_config> configs; 5867 ALOGV("calling getConfigurations"); 5868 getConfigurations(&configs, 5869 false /* ignoreMipmap */, 5870 false /* ignoreAndroidPackage */, 5871 includeSystemLocales /* includeSystemConfigs */); 5872 ALOGV("called getConfigurations size=%d", (int)configs.size()); 5873 const size_t I = configs.size(); 5874 5875 char locale[RESTABLE_MAX_LOCALE_LEN]; 5876 for (size_t i=0; i<I; i++) { 5877 configs[i].getBcp47Locale(locale); 5878 5879 auto iter = std::lower_bound(locales->begin(), locales->end(), locale, 5880 compareString8AndCString); 5881 if (iter == locales->end() || strcmp(iter->string(), locale) != 0) { 5882 locales->insertAt(String8(locale), std::distance(locales->begin(), iter)); 5883 } 5884 } 5885} 5886 5887StringPoolRef::StringPoolRef(const ResStringPool* pool, uint32_t index) 5888 : mPool(pool), mIndex(index) {} 5889 5890StringPoolRef::StringPoolRef() 5891 : mPool(NULL), mIndex(0) {} 5892 5893const char* StringPoolRef::string8(size_t* outLen) const { 5894 if (mPool != NULL) { 5895 return mPool->string8At(mIndex, outLen); 5896 } 5897 if (outLen != NULL) { 5898 *outLen = 0; 5899 } 5900 return NULL; 5901} 5902 5903const char16_t* StringPoolRef::string16(size_t* outLen) const { 5904 if (mPool != NULL) { 5905 return mPool->stringAt(mIndex, outLen); 5906 } 5907 if (outLen != NULL) { 5908 *outLen = 0; 5909 } 5910 return NULL; 5911} 5912 5913bool ResTable::getResourceFlags(uint32_t resID, uint32_t* outFlags) const { 5914 if (mError != NO_ERROR) { 5915 return false; 5916 } 5917 5918 const ssize_t p = getResourcePackageIndex(resID); 5919 const int t = Res_GETTYPE(resID); 5920 const int e = Res_GETENTRY(resID); 5921 5922 if (p < 0) { 5923 if (Res_GETPACKAGE(resID)+1 == 0) { 5924 ALOGW("No package identifier when getting flags for resource number 0x%08x", resID); 5925 } else { 5926 ALOGW("No known package when getting flags for resource number 0x%08x", resID); 5927 } 5928 return false; 5929 } 5930 if (t < 0) { 5931 ALOGW("No type identifier when getting flags for resource number 0x%08x", resID); 5932 return false; 5933 } 5934 5935 const PackageGroup* const grp = mPackageGroups[p]; 5936 if (grp == NULL) { 5937 ALOGW("Bad identifier when getting flags for resource number 0x%08x", resID); 5938 return false; 5939 } 5940 5941 Entry entry; 5942 status_t err = getEntry(grp, t, e, NULL, &entry); 5943 if (err != NO_ERROR) { 5944 return false; 5945 } 5946 5947 *outFlags = entry.specFlags; 5948 return true; 5949} 5950 5951status_t ResTable::getEntry( 5952 const PackageGroup* packageGroup, int typeIndex, int entryIndex, 5953 const ResTable_config* config, 5954 Entry* outEntry) const 5955{ 5956 const TypeList& typeList = packageGroup->types[typeIndex]; 5957 if (typeList.isEmpty()) { 5958 ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex); 5959 return BAD_TYPE; 5960 } 5961 5962 const ResTable_type* bestType = NULL; 5963 uint32_t bestOffset = ResTable_type::NO_ENTRY; 5964 const Package* bestPackage = NULL; 5965 uint32_t specFlags = 0; 5966 uint8_t actualTypeIndex = typeIndex; 5967 ResTable_config bestConfig; 5968 memset(&bestConfig, 0, sizeof(bestConfig)); 5969 5970 // Iterate over the Types of each package. 5971 const size_t typeCount = typeList.size(); 5972 for (size_t i = 0; i < typeCount; i++) { 5973 const Type* const typeSpec = typeList[i]; 5974 5975 int realEntryIndex = entryIndex; 5976 int realTypeIndex = typeIndex; 5977 bool currentTypeIsOverlay = false; 5978 5979 // Runtime overlay packages provide a mapping of app resource 5980 // ID to package resource ID. 5981 if (typeSpec->idmapEntries.hasEntries()) { 5982 uint16_t overlayEntryIndex; 5983 if (typeSpec->idmapEntries.lookup(entryIndex, &overlayEntryIndex) != NO_ERROR) { 5984 // No such mapping exists 5985 continue; 5986 } 5987 realEntryIndex = overlayEntryIndex; 5988 realTypeIndex = typeSpec->idmapEntries.overlayTypeId() - 1; 5989 currentTypeIsOverlay = true; 5990 } 5991 5992 if (static_cast<size_t>(realEntryIndex) >= typeSpec->entryCount) { 5993 ALOGW("For resource 0x%08x, entry index(%d) is beyond type entryCount(%d)", 5994 Res_MAKEID(packageGroup->id - 1, typeIndex, entryIndex), 5995 entryIndex, static_cast<int>(typeSpec->entryCount)); 5996 // We should normally abort here, but some legacy apps declare 5997 // resources in the 'android' package (old bug in AAPT). 5998 continue; 5999 } 6000 6001 // Aggregate all the flags for each package that defines this entry. 6002 if (typeSpec->typeSpecFlags != NULL) { 6003 specFlags |= dtohl(typeSpec->typeSpecFlags[realEntryIndex]); 6004 } else { 6005 specFlags = -1; 6006 } 6007 6008 const Vector<const ResTable_type*>* candidateConfigs = &typeSpec->configs; 6009 6010 std::shared_ptr<Vector<const ResTable_type*>> filteredConfigs; 6011 if (config && memcmp(&mParams, config, sizeof(mParams)) == 0) { 6012 // Grab the lock first so we can safely get the current filtered list. 6013 AutoMutex _lock(mFilteredConfigLock); 6014 6015 // This configuration is equal to the one we have previously cached for, 6016 // so use the filtered configs. 6017 6018 const TypeCacheEntry& cacheEntry = packageGroup->typeCacheEntries[typeIndex]; 6019 if (i < cacheEntry.filteredConfigs.size()) { 6020 if (cacheEntry.filteredConfigs[i]) { 6021 // Grab a reference to the shared_ptr so it doesn't get destroyed while 6022 // going through this list. 6023 filteredConfigs = cacheEntry.filteredConfigs[i]; 6024 6025 // Use this filtered list. 6026 candidateConfigs = filteredConfigs.get(); 6027 } 6028 } 6029 } 6030 6031 const size_t numConfigs = candidateConfigs->size(); 6032 for (size_t c = 0; c < numConfigs; c++) { 6033 const ResTable_type* const thisType = candidateConfigs->itemAt(c); 6034 if (thisType == NULL) { 6035 continue; 6036 } 6037 6038 ResTable_config thisConfig; 6039 thisConfig.copyFromDtoH(thisType->config); 6040 6041 // Check to make sure this one is valid for the current parameters. 6042 if (config != NULL && !thisConfig.match(*config)) { 6043 continue; 6044 } 6045 6046 // Check if there is the desired entry in this type. 6047 const uint32_t* const eindex = reinterpret_cast<const uint32_t*>( 6048 reinterpret_cast<const uint8_t*>(thisType) + dtohs(thisType->header.headerSize)); 6049 6050 uint32_t thisOffset = dtohl(eindex[realEntryIndex]); 6051 if (thisOffset == ResTable_type::NO_ENTRY) { 6052 // There is no entry for this index and configuration. 6053 continue; 6054 } 6055 6056 if (bestType != NULL) { 6057 // Check if this one is less specific than the last found. If so, 6058 // we will skip it. We check starting with things we most care 6059 // about to those we least care about. 6060 if (!thisConfig.isBetterThan(bestConfig, config)) { 6061 if (!currentTypeIsOverlay || thisConfig.compare(bestConfig) != 0) { 6062 continue; 6063 } 6064 } 6065 } 6066 6067 bestType = thisType; 6068 bestOffset = thisOffset; 6069 bestConfig = thisConfig; 6070 bestPackage = typeSpec->package; 6071 actualTypeIndex = realTypeIndex; 6072 6073 // If no config was specified, any type will do, so skip 6074 if (config == NULL) { 6075 break; 6076 } 6077 } 6078 } 6079 6080 if (bestType == NULL) { 6081 return BAD_INDEX; 6082 } 6083 6084 bestOffset += dtohl(bestType->entriesStart); 6085 6086 if (bestOffset > (dtohl(bestType->header.size)-sizeof(ResTable_entry))) { 6087 ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x", 6088 bestOffset, dtohl(bestType->header.size)); 6089 return BAD_TYPE; 6090 } 6091 if ((bestOffset & 0x3) != 0) { 6092 ALOGW("ResTable_entry at 0x%x is not on an integer boundary", bestOffset); 6093 return BAD_TYPE; 6094 } 6095 6096 const ResTable_entry* const entry = reinterpret_cast<const ResTable_entry*>( 6097 reinterpret_cast<const uint8_t*>(bestType) + bestOffset); 6098 if (dtohs(entry->size) < sizeof(*entry)) { 6099 ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size)); 6100 return BAD_TYPE; 6101 } 6102 6103 if (outEntry != NULL) { 6104 outEntry->entry = entry; 6105 outEntry->config = bestConfig; 6106 outEntry->type = bestType; 6107 outEntry->specFlags = specFlags; 6108 outEntry->package = bestPackage; 6109 outEntry->typeStr = StringPoolRef(&bestPackage->typeStrings, actualTypeIndex - bestPackage->typeIdOffset); 6110 outEntry->keyStr = StringPoolRef(&bestPackage->keyStrings, dtohl(entry->key.index)); 6111 } 6112 return NO_ERROR; 6113} 6114 6115status_t ResTable::parsePackage(const ResTable_package* const pkg, 6116 const Header* const header, bool appAsLib, bool isSystemAsset) 6117{ 6118 const uint8_t* base = (const uint8_t*)pkg; 6119 status_t err = validate_chunk(&pkg->header, sizeof(*pkg) - sizeof(pkg->typeIdOffset), 6120 header->dataEnd, "ResTable_package"); 6121 if (err != NO_ERROR) { 6122 return (mError=err); 6123 } 6124 6125 const uint32_t pkgSize = dtohl(pkg->header.size); 6126 6127 if (dtohl(pkg->typeStrings) >= pkgSize) { 6128 ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.", 6129 dtohl(pkg->typeStrings), pkgSize); 6130 return (mError=BAD_TYPE); 6131 } 6132 if ((dtohl(pkg->typeStrings)&0x3) != 0) { 6133 ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.", 6134 dtohl(pkg->typeStrings)); 6135 return (mError=BAD_TYPE); 6136 } 6137 if (dtohl(pkg->keyStrings) >= pkgSize) { 6138 ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.", 6139 dtohl(pkg->keyStrings), pkgSize); 6140 return (mError=BAD_TYPE); 6141 } 6142 if ((dtohl(pkg->keyStrings)&0x3) != 0) { 6143 ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.", 6144 dtohl(pkg->keyStrings)); 6145 return (mError=BAD_TYPE); 6146 } 6147 6148 uint32_t id = dtohl(pkg->id); 6149 KeyedVector<uint8_t, IdmapEntries> idmapEntries; 6150 6151 if (header->resourceIDMap != NULL) { 6152 uint8_t targetPackageId = 0; 6153 status_t err = parseIdmap(header->resourceIDMap, header->resourceIDMapSize, &targetPackageId, &idmapEntries); 6154 if (err != NO_ERROR) { 6155 ALOGW("Overlay is broken"); 6156 return (mError=err); 6157 } 6158 id = targetPackageId; 6159 } 6160 6161 if (id >= 256) { 6162 LOG_ALWAYS_FATAL("Package id out of range"); 6163 return NO_ERROR; 6164 } else if (id == 0 || appAsLib || isSystemAsset) { 6165 // This is a library or a system asset, so assign an ID 6166 id = mNextPackageId++; 6167 } 6168 6169 PackageGroup* group = NULL; 6170 Package* package = new Package(this, header, pkg); 6171 if (package == NULL) { 6172 return (mError=NO_MEMORY); 6173 } 6174 6175 err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings), 6176 header->dataEnd-(base+dtohl(pkg->typeStrings))); 6177 if (err != NO_ERROR) { 6178 delete group; 6179 delete package; 6180 return (mError=err); 6181 } 6182 6183 err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings), 6184 header->dataEnd-(base+dtohl(pkg->keyStrings))); 6185 if (err != NO_ERROR) { 6186 delete group; 6187 delete package; 6188 return (mError=err); 6189 } 6190 6191 size_t idx = mPackageMap[id]; 6192 if (idx == 0) { 6193 idx = mPackageGroups.size() + 1; 6194 6195 char16_t tmpName[sizeof(pkg->name)/sizeof(pkg->name[0])]; 6196 strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(pkg->name[0])); 6197 group = new PackageGroup(this, String16(tmpName), id, appAsLib, isSystemAsset); 6198 if (group == NULL) { 6199 delete package; 6200 return (mError=NO_MEMORY); 6201 } 6202 6203 err = mPackageGroups.add(group); 6204 if (err < NO_ERROR) { 6205 return (mError=err); 6206 } 6207 6208 mPackageMap[id] = static_cast<uint8_t>(idx); 6209 6210 // Find all packages that reference this package 6211 size_t N = mPackageGroups.size(); 6212 for (size_t i = 0; i < N; i++) { 6213 mPackageGroups[i]->dynamicRefTable.addMapping( 6214 group->name, static_cast<uint8_t>(group->id)); 6215 } 6216 } else { 6217 group = mPackageGroups.itemAt(idx - 1); 6218 if (group == NULL) { 6219 return (mError=UNKNOWN_ERROR); 6220 } 6221 } 6222 6223 err = group->packages.add(package); 6224 if (err < NO_ERROR) { 6225 return (mError=err); 6226 } 6227 6228 // Iterate through all chunks. 6229 const ResChunk_header* chunk = 6230 (const ResChunk_header*)(((const uint8_t*)pkg) 6231 + dtohs(pkg->header.headerSize)); 6232 const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size); 6233 while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) && 6234 ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) { 6235 if (kDebugTableNoisy) { 6236 ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 6237 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 6238 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 6239 } 6240 const size_t csize = dtohl(chunk->size); 6241 const uint16_t ctype = dtohs(chunk->type); 6242 if (ctype == RES_TABLE_TYPE_SPEC_TYPE) { 6243 const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk); 6244 err = validate_chunk(&typeSpec->header, sizeof(*typeSpec), 6245 endPos, "ResTable_typeSpec"); 6246 if (err != NO_ERROR) { 6247 return (mError=err); 6248 } 6249 6250 const size_t typeSpecSize = dtohl(typeSpec->header.size); 6251 const size_t newEntryCount = dtohl(typeSpec->entryCount); 6252 6253 if (kDebugLoadTableNoisy) { 6254 ALOGI("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n", 6255 (void*)(base-(const uint8_t*)chunk), 6256 dtohs(typeSpec->header.type), 6257 dtohs(typeSpec->header.headerSize), 6258 (void*)typeSpecSize); 6259 } 6260 // look for block overrun or int overflow when multiplying by 4 6261 if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t)) 6262 || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*newEntryCount) 6263 > typeSpecSize)) { 6264 ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.", 6265 (void*)(dtohs(typeSpec->header.headerSize) + (sizeof(uint32_t)*newEntryCount)), 6266 (void*)typeSpecSize); 6267 return (mError=BAD_TYPE); 6268 } 6269 6270 if (typeSpec->id == 0) { 6271 ALOGW("ResTable_type has an id of 0."); 6272 return (mError=BAD_TYPE); 6273 } 6274 6275 if (newEntryCount > 0) { 6276 uint8_t typeIndex = typeSpec->id - 1; 6277 ssize_t idmapIndex = idmapEntries.indexOfKey(typeSpec->id); 6278 if (idmapIndex >= 0) { 6279 typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1; 6280 } 6281 6282 TypeList& typeList = group->types.editItemAt(typeIndex); 6283 if (!typeList.isEmpty()) { 6284 const Type* existingType = typeList[0]; 6285 if (existingType->entryCount != newEntryCount && idmapIndex < 0) { 6286 ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d", 6287 (int) newEntryCount, (int) existingType->entryCount); 6288 // We should normally abort here, but some legacy apps declare 6289 // resources in the 'android' package (old bug in AAPT). 6290 } 6291 } 6292 6293 Type* t = new Type(header, package, newEntryCount); 6294 t->typeSpec = typeSpec; 6295 t->typeSpecFlags = (const uint32_t*)( 6296 ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize)); 6297 if (idmapIndex >= 0) { 6298 t->idmapEntries = idmapEntries[idmapIndex]; 6299 } 6300 typeList.add(t); 6301 group->largestTypeId = max(group->largestTypeId, typeSpec->id); 6302 } else { 6303 ALOGV("Skipping empty ResTable_typeSpec for type %d", typeSpec->id); 6304 } 6305 6306 } else if (ctype == RES_TABLE_TYPE_TYPE) { 6307 const ResTable_type* type = (const ResTable_type*)(chunk); 6308 err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4, 6309 endPos, "ResTable_type"); 6310 if (err != NO_ERROR) { 6311 return (mError=err); 6312 } 6313 6314 const uint32_t typeSize = dtohl(type->header.size); 6315 const size_t newEntryCount = dtohl(type->entryCount); 6316 6317 if (kDebugLoadTableNoisy) { 6318 printf("Type off %p: type=0x%x, headerSize=0x%x, size=%u\n", 6319 (void*)(base-(const uint8_t*)chunk), 6320 dtohs(type->header.type), 6321 dtohs(type->header.headerSize), 6322 typeSize); 6323 } 6324 if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*newEntryCount) > typeSize) { 6325 ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.", 6326 (void*)(dtohs(type->header.headerSize) + (sizeof(uint32_t)*newEntryCount)), 6327 typeSize); 6328 return (mError=BAD_TYPE); 6329 } 6330 6331 if (newEntryCount != 0 6332 && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) { 6333 ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.", 6334 dtohl(type->entriesStart), typeSize); 6335 return (mError=BAD_TYPE); 6336 } 6337 6338 if (type->id == 0) { 6339 ALOGW("ResTable_type has an id of 0."); 6340 return (mError=BAD_TYPE); 6341 } 6342 6343 if (newEntryCount > 0) { 6344 uint8_t typeIndex = type->id - 1; 6345 ssize_t idmapIndex = idmapEntries.indexOfKey(type->id); 6346 if (idmapIndex >= 0) { 6347 typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1; 6348 } 6349 6350 TypeList& typeList = group->types.editItemAt(typeIndex); 6351 if (typeList.isEmpty()) { 6352 ALOGE("No TypeSpec for type %d", type->id); 6353 return (mError=BAD_TYPE); 6354 } 6355 6356 Type* t = typeList.editItemAt(typeList.size() - 1); 6357 if (newEntryCount != t->entryCount) { 6358 ALOGE("ResTable_type entry count inconsistent: given %d, previously %d", 6359 (int)newEntryCount, (int)t->entryCount); 6360 return (mError=BAD_TYPE); 6361 } 6362 6363 if (t->package != package) { 6364 ALOGE("No TypeSpec for type %d", type->id); 6365 return (mError=BAD_TYPE); 6366 } 6367 6368 t->configs.add(type); 6369 6370 if (kDebugTableGetEntry) { 6371 ResTable_config thisConfig; 6372 thisConfig.copyFromDtoH(type->config); 6373 ALOGI("Adding config to type %d: %s\n", type->id, 6374 thisConfig.toString().string()); 6375 } 6376 } else { 6377 ALOGV("Skipping empty ResTable_type for type %d", type->id); 6378 } 6379 6380 } else if (ctype == RES_TABLE_LIBRARY_TYPE) { 6381 if (group->dynamicRefTable.entries().size() == 0) { 6382 status_t err = group->dynamicRefTable.load((const ResTable_lib_header*) chunk); 6383 if (err != NO_ERROR) { 6384 return (mError=err); 6385 } 6386 6387 // Fill in the reference table with the entries we already know about. 6388 size_t N = mPackageGroups.size(); 6389 for (size_t i = 0; i < N; i++) { 6390 group->dynamicRefTable.addMapping(mPackageGroups[i]->name, mPackageGroups[i]->id); 6391 } 6392 } else { 6393 ALOGW("Found multiple library tables, ignoring..."); 6394 } 6395 } else { 6396 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), 6397 endPos, "ResTable_package:unknown"); 6398 if (err != NO_ERROR) { 6399 return (mError=err); 6400 } 6401 } 6402 chunk = (const ResChunk_header*) 6403 (((const uint8_t*)chunk) + csize); 6404 } 6405 6406 return NO_ERROR; 6407} 6408 6409DynamicRefTable::DynamicRefTable(uint8_t packageId, bool appAsLib) 6410 : mAssignedPackageId(packageId) 6411 , mAppAsLib(appAsLib) 6412{ 6413 memset(mLookupTable, 0, sizeof(mLookupTable)); 6414 6415 // Reserved package ids 6416 mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID; 6417 mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID; 6418} 6419 6420status_t DynamicRefTable::load(const ResTable_lib_header* const header) 6421{ 6422 const uint32_t entryCount = dtohl(header->count); 6423 const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount; 6424 const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize); 6425 if (sizeOfEntries > expectedSize) { 6426 ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).", 6427 expectedSize, entryCount, (uint32_t)sizeof(ResTable_lib_entry)); 6428 return UNKNOWN_ERROR; 6429 } 6430 6431 const ResTable_lib_entry* entry = (const ResTable_lib_entry*)(((uint8_t*) header) + 6432 dtohl(header->header.headerSize)); 6433 for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) { 6434 uint32_t packageId = dtohl(entry->packageId); 6435 char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)]; 6436 strcpy16_dtoh(tmpName, entry->packageName, sizeof(entry->packageName) / sizeof(char16_t)); 6437 if (kDebugLibNoisy) { 6438 ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(), 6439 dtohl(entry->packageId)); 6440 } 6441 if (packageId >= 256) { 6442 ALOGE("Bad package id 0x%08x", packageId); 6443 return UNKNOWN_ERROR; 6444 } 6445 mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId); 6446 entry = entry + 1; 6447 } 6448 return NO_ERROR; 6449} 6450 6451status_t DynamicRefTable::addMappings(const DynamicRefTable& other) { 6452 if (mAssignedPackageId != other.mAssignedPackageId) { 6453 return UNKNOWN_ERROR; 6454 } 6455 6456 const size_t entryCount = other.mEntries.size(); 6457 for (size_t i = 0; i < entryCount; i++) { 6458 ssize_t index = mEntries.indexOfKey(other.mEntries.keyAt(i)); 6459 if (index < 0) { 6460 mEntries.add(other.mEntries.keyAt(i), other.mEntries[i]); 6461 } else { 6462 if (other.mEntries[i] != mEntries[index]) { 6463 return UNKNOWN_ERROR; 6464 } 6465 } 6466 } 6467 6468 // Merge the lookup table. No entry can conflict 6469 // (value of 0 means not set). 6470 for (size_t i = 0; i < 256; i++) { 6471 if (mLookupTable[i] != other.mLookupTable[i]) { 6472 if (mLookupTable[i] == 0) { 6473 mLookupTable[i] = other.mLookupTable[i]; 6474 } else if (other.mLookupTable[i] != 0) { 6475 return UNKNOWN_ERROR; 6476 } 6477 } 6478 } 6479 return NO_ERROR; 6480} 6481 6482status_t DynamicRefTable::addMapping(const String16& packageName, uint8_t packageId) 6483{ 6484 ssize_t index = mEntries.indexOfKey(packageName); 6485 if (index < 0) { 6486 return UNKNOWN_ERROR; 6487 } 6488 mLookupTable[mEntries.valueAt(index)] = packageId; 6489 return NO_ERROR; 6490} 6491 6492status_t DynamicRefTable::lookupResourceId(uint32_t* resId) const { 6493 uint32_t res = *resId; 6494 size_t packageId = Res_GETPACKAGE(res) + 1; 6495 6496 if (packageId == APP_PACKAGE_ID && !mAppAsLib) { 6497 // No lookup needs to be done, app package IDs are absolute. 6498 return NO_ERROR; 6499 } 6500 6501 if (packageId == 0 || (packageId == APP_PACKAGE_ID && mAppAsLib)) { 6502 // The package ID is 0x00. That means that a shared library is accessing 6503 // its own local resource. 6504 // Or if app resource is loaded as shared library, the resource which has 6505 // app package Id is local resources. 6506 // so we fix up those resources with the calling package ID. 6507 *resId = (0xFFFFFF & (*resId)) | (((uint32_t) mAssignedPackageId) << 24); 6508 return NO_ERROR; 6509 } 6510 6511 // Do a proper lookup. 6512 uint8_t translatedId = mLookupTable[packageId]; 6513 if (translatedId == 0) { 6514 ALOGV("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.", 6515 (uint8_t)mAssignedPackageId, (uint8_t)packageId); 6516 for (size_t i = 0; i < 256; i++) { 6517 if (mLookupTable[i] != 0) { 6518 ALOGV("e[0x%02x] -> 0x%02x", (uint8_t)i, mLookupTable[i]); 6519 } 6520 } 6521 return UNKNOWN_ERROR; 6522 } 6523 6524 *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24); 6525 return NO_ERROR; 6526} 6527 6528status_t DynamicRefTable::lookupResourceValue(Res_value* value) const { 6529 if (value->dataType != Res_value::TYPE_DYNAMIC_REFERENCE && 6530 (value->dataType != Res_value::TYPE_REFERENCE || !mAppAsLib)) { 6531 // If the package is loaded as shared library, the resource reference 6532 // also need to be fixed. 6533 return NO_ERROR; 6534 } 6535 6536 status_t err = lookupResourceId(&value->data); 6537 if (err != NO_ERROR) { 6538 return err; 6539 } 6540 6541 value->dataType = Res_value::TYPE_REFERENCE; 6542 return NO_ERROR; 6543} 6544 6545struct IdmapTypeMap { 6546 ssize_t overlayTypeId; 6547 size_t entryOffset; 6548 Vector<uint32_t> entryMap; 6549}; 6550 6551status_t ResTable::createIdmap(const ResTable& overlay, 6552 uint32_t targetCrc, uint32_t overlayCrc, 6553 const char* targetPath, const char* overlayPath, 6554 void** outData, size_t* outSize) const 6555{ 6556 // see README for details on the format of map 6557 if (mPackageGroups.size() == 0) { 6558 ALOGW("idmap: target package has no package groups, cannot create idmap\n"); 6559 return UNKNOWN_ERROR; 6560 } 6561 6562 if (mPackageGroups[0]->packages.size() == 0) { 6563 ALOGW("idmap: target package has no packages in its first package group, " 6564 "cannot create idmap\n"); 6565 return UNKNOWN_ERROR; 6566 } 6567 6568 KeyedVector<uint8_t, IdmapTypeMap> map; 6569 6570 // overlaid packages are assumed to contain only one package group 6571 const PackageGroup* pg = mPackageGroups[0]; 6572 6573 // starting size is header 6574 *outSize = ResTable::IDMAP_HEADER_SIZE_BYTES; 6575 6576 // target package id and number of types in map 6577 *outSize += 2 * sizeof(uint16_t); 6578 6579 // overlay packages are assumed to contain only one package group 6580 const ResTable_package* overlayPackageStruct = overlay.mPackageGroups[0]->packages[0]->package; 6581 char16_t tmpName[sizeof(overlayPackageStruct->name)/sizeof(overlayPackageStruct->name[0])]; 6582 strcpy16_dtoh(tmpName, overlayPackageStruct->name, sizeof(overlayPackageStruct->name)/sizeof(overlayPackageStruct->name[0])); 6583 const String16 overlayPackage(tmpName); 6584 6585 for (size_t typeIndex = 0; typeIndex < pg->types.size(); ++typeIndex) { 6586 const TypeList& typeList = pg->types[typeIndex]; 6587 if (typeList.isEmpty()) { 6588 continue; 6589 } 6590 6591 const Type* typeConfigs = typeList[0]; 6592 6593 IdmapTypeMap typeMap; 6594 typeMap.overlayTypeId = -1; 6595 typeMap.entryOffset = 0; 6596 6597 for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) { 6598 uint32_t resID = Res_MAKEID(pg->id - 1, typeIndex, entryIndex); 6599 resource_name resName; 6600 if (!this->getResourceName(resID, false, &resName)) { 6601 if (typeMap.entryMap.isEmpty()) { 6602 typeMap.entryOffset++; 6603 } 6604 continue; 6605 } 6606 6607 const String16 overlayType(resName.type, resName.typeLen); 6608 const String16 overlayName(resName.name, resName.nameLen); 6609 uint32_t overlayResID = overlay.identifierForName(overlayName.string(), 6610 overlayName.size(), 6611 overlayType.string(), 6612 overlayType.size(), 6613 overlayPackage.string(), 6614 overlayPackage.size()); 6615 if (overlayResID == 0) { 6616 if (typeMap.entryMap.isEmpty()) { 6617 typeMap.entryOffset++; 6618 } 6619 continue; 6620 } 6621 6622 if (typeMap.overlayTypeId == -1) { 6623 typeMap.overlayTypeId = Res_GETTYPE(overlayResID) + 1; 6624 } 6625 6626 if (Res_GETTYPE(overlayResID) + 1 != static_cast<size_t>(typeMap.overlayTypeId)) { 6627 ALOGE("idmap: can't mix type ids in entry map. Resource 0x%08x maps to 0x%08x" 6628 " but entries should map to resources of type %02zx", 6629 resID, overlayResID, typeMap.overlayTypeId); 6630 return BAD_TYPE; 6631 } 6632 6633 if (typeMap.entryOffset + typeMap.entryMap.size() < entryIndex) { 6634 // pad with 0xffffffff's (indicating non-existing entries) before adding this entry 6635 size_t index = typeMap.entryMap.size(); 6636 size_t numItems = entryIndex - (typeMap.entryOffset + index); 6637 if (typeMap.entryMap.insertAt(0xffffffff, index, numItems) < 0) { 6638 return NO_MEMORY; 6639 } 6640 } 6641 typeMap.entryMap.add(Res_GETENTRY(overlayResID)); 6642 } 6643 6644 if (!typeMap.entryMap.isEmpty()) { 6645 if (map.add(static_cast<uint8_t>(typeIndex), typeMap) < 0) { 6646 return NO_MEMORY; 6647 } 6648 *outSize += (4 * sizeof(uint16_t)) + (typeMap.entryMap.size() * sizeof(uint32_t)); 6649 } 6650 } 6651 6652 if (map.isEmpty()) { 6653 ALOGW("idmap: no resources in overlay package present in base package"); 6654 return UNKNOWN_ERROR; 6655 } 6656 6657 if ((*outData = malloc(*outSize)) == NULL) { 6658 return NO_MEMORY; 6659 } 6660 6661 uint32_t* data = (uint32_t*)*outData; 6662 *data++ = htodl(IDMAP_MAGIC); 6663 *data++ = htodl(IDMAP_CURRENT_VERSION); 6664 *data++ = htodl(targetCrc); 6665 *data++ = htodl(overlayCrc); 6666 const char* paths[] = { targetPath, overlayPath }; 6667 for (int j = 0; j < 2; ++j) { 6668 char* p = (char*)data; 6669 const char* path = paths[j]; 6670 const size_t I = strlen(path); 6671 if (I > 255) { 6672 ALOGV("path exceeds expected 255 characters: %s\n", path); 6673 return UNKNOWN_ERROR; 6674 } 6675 for (size_t i = 0; i < 256; ++i) { 6676 *p++ = i < I ? path[i] : '\0'; 6677 } 6678 data += 256 / sizeof(uint32_t); 6679 } 6680 const size_t mapSize = map.size(); 6681 uint16_t* typeData = reinterpret_cast<uint16_t*>(data); 6682 *typeData++ = htods(pg->id); 6683 *typeData++ = htods(mapSize); 6684 for (size_t i = 0; i < mapSize; ++i) { 6685 uint8_t targetTypeId = map.keyAt(i); 6686 const IdmapTypeMap& typeMap = map[i]; 6687 *typeData++ = htods(targetTypeId + 1); 6688 *typeData++ = htods(typeMap.overlayTypeId); 6689 *typeData++ = htods(typeMap.entryMap.size()); 6690 *typeData++ = htods(typeMap.entryOffset); 6691 6692 const size_t entryCount = typeMap.entryMap.size(); 6693 uint32_t* entries = reinterpret_cast<uint32_t*>(typeData); 6694 for (size_t j = 0; j < entryCount; j++) { 6695 entries[j] = htodl(typeMap.entryMap[j]); 6696 } 6697 typeData += entryCount * 2; 6698 } 6699 6700 return NO_ERROR; 6701} 6702 6703bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes, 6704 uint32_t* pVersion, 6705 uint32_t* pTargetCrc, uint32_t* pOverlayCrc, 6706 String8* pTargetPath, String8* pOverlayPath) 6707{ 6708 const uint32_t* map = (const uint32_t*)idmap; 6709 if (!assertIdmapHeader(map, sizeBytes)) { 6710 return false; 6711 } 6712 if (pVersion) { 6713 *pVersion = dtohl(map[1]); 6714 } 6715 if (pTargetCrc) { 6716 *pTargetCrc = dtohl(map[2]); 6717 } 6718 if (pOverlayCrc) { 6719 *pOverlayCrc = dtohl(map[3]); 6720 } 6721 if (pTargetPath) { 6722 pTargetPath->setTo(reinterpret_cast<const char*>(map + 4)); 6723 } 6724 if (pOverlayPath) { 6725 pOverlayPath->setTo(reinterpret_cast<const char*>(map + 4 + 256 / sizeof(uint32_t))); 6726 } 6727 return true; 6728} 6729 6730 6731#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string()) 6732 6733#define CHAR16_ARRAY_EQ(constant, var, len) \ 6734 ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len)))) 6735 6736static void print_complex(uint32_t complex, bool isFraction) 6737{ 6738 const float MANTISSA_MULT = 6739 1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT); 6740 const float RADIX_MULTS[] = { 6741 1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT, 6742 1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT 6743 }; 6744 6745 float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK 6746 <<Res_value::COMPLEX_MANTISSA_SHIFT)) 6747 * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT) 6748 & Res_value::COMPLEX_RADIX_MASK]; 6749 printf("%f", value); 6750 6751 if (!isFraction) { 6752 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) { 6753 case Res_value::COMPLEX_UNIT_PX: printf("px"); break; 6754 case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break; 6755 case Res_value::COMPLEX_UNIT_SP: printf("sp"); break; 6756 case Res_value::COMPLEX_UNIT_PT: printf("pt"); break; 6757 case Res_value::COMPLEX_UNIT_IN: printf("in"); break; 6758 case Res_value::COMPLEX_UNIT_MM: printf("mm"); break; 6759 default: printf(" (unknown unit)"); break; 6760 } 6761 } else { 6762 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) { 6763 case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break; 6764 case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break; 6765 default: printf(" (unknown unit)"); break; 6766 } 6767 } 6768} 6769 6770// Normalize a string for output 6771String8 ResTable::normalizeForOutput( const char *input ) 6772{ 6773 String8 ret; 6774 char buff[2]; 6775 buff[1] = '\0'; 6776 6777 while (*input != '\0') { 6778 switch (*input) { 6779 // All interesting characters are in the ASCII zone, so we are making our own lives 6780 // easier by scanning the string one byte at a time. 6781 case '\\': 6782 ret += "\\\\"; 6783 break; 6784 case '\n': 6785 ret += "\\n"; 6786 break; 6787 case '"': 6788 ret += "\\\""; 6789 break; 6790 default: 6791 buff[0] = *input; 6792 ret += buff; 6793 break; 6794 } 6795 6796 input++; 6797 } 6798 6799 return ret; 6800} 6801 6802void ResTable::print_value(const Package* pkg, const Res_value& value) const 6803{ 6804 if (value.dataType == Res_value::TYPE_NULL) { 6805 if (value.data == Res_value::DATA_NULL_UNDEFINED) { 6806 printf("(null)\n"); 6807 } else if (value.data == Res_value::DATA_NULL_EMPTY) { 6808 printf("(null empty)\n"); 6809 } else { 6810 // This should never happen. 6811 printf("(null) 0x%08x\n", value.data); 6812 } 6813 } else if (value.dataType == Res_value::TYPE_REFERENCE) { 6814 printf("(reference) 0x%08x\n", value.data); 6815 } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) { 6816 printf("(dynamic reference) 0x%08x\n", value.data); 6817 } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) { 6818 printf("(attribute) 0x%08x\n", value.data); 6819 } else if (value.dataType == Res_value::TYPE_STRING) { 6820 size_t len; 6821 const char* str8 = pkg->header->values.string8At( 6822 value.data, &len); 6823 if (str8 != NULL) { 6824 printf("(string8) \"%s\"\n", normalizeForOutput(str8).string()); 6825 } else { 6826 const char16_t* str16 = pkg->header->values.stringAt( 6827 value.data, &len); 6828 if (str16 != NULL) { 6829 printf("(string16) \"%s\"\n", 6830 normalizeForOutput(String8(str16, len).string()).string()); 6831 } else { 6832 printf("(string) null\n"); 6833 } 6834 } 6835 } else if (value.dataType == Res_value::TYPE_FLOAT) { 6836 printf("(float) %g\n", *(const float*)&value.data); 6837 } else if (value.dataType == Res_value::TYPE_DIMENSION) { 6838 printf("(dimension) "); 6839 print_complex(value.data, false); 6840 printf("\n"); 6841 } else if (value.dataType == Res_value::TYPE_FRACTION) { 6842 printf("(fraction) "); 6843 print_complex(value.data, true); 6844 printf("\n"); 6845 } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT 6846 || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) { 6847 printf("(color) #%08x\n", value.data); 6848 } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) { 6849 printf("(boolean) %s\n", value.data ? "true" : "false"); 6850 } else if (value.dataType >= Res_value::TYPE_FIRST_INT 6851 || value.dataType <= Res_value::TYPE_LAST_INT) { 6852 printf("(int) 0x%08x or %d\n", value.data, value.data); 6853 } else { 6854 printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n", 6855 (int)value.dataType, (int)value.data, 6856 (int)value.size, (int)value.res0); 6857 } 6858} 6859 6860void ResTable::print(bool inclValues) const 6861{ 6862 if (mError != 0) { 6863 printf("mError=0x%x (%s)\n", mError, strerror(mError)); 6864 } 6865 size_t pgCount = mPackageGroups.size(); 6866 printf("Package Groups (%d)\n", (int)pgCount); 6867 for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) { 6868 const PackageGroup* pg = mPackageGroups[pgIndex]; 6869 printf("Package Group %d id=0x%02x packageCount=%d name=%s\n", 6870 (int)pgIndex, pg->id, (int)pg->packages.size(), 6871 String8(pg->name).string()); 6872 6873 const KeyedVector<String16, uint8_t>& refEntries = pg->dynamicRefTable.entries(); 6874 const size_t refEntryCount = refEntries.size(); 6875 if (refEntryCount > 0) { 6876 printf(" DynamicRefTable entryCount=%d:\n", (int) refEntryCount); 6877 for (size_t refIndex = 0; refIndex < refEntryCount; refIndex++) { 6878 printf(" 0x%02x -> %s\n", 6879 refEntries.valueAt(refIndex), 6880 String8(refEntries.keyAt(refIndex)).string()); 6881 } 6882 printf("\n"); 6883 } 6884 6885 int packageId = pg->id; 6886 size_t pkgCount = pg->packages.size(); 6887 for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) { 6888 const Package* pkg = pg->packages[pkgIndex]; 6889 // Use a package's real ID, since the ID may have been assigned 6890 // if this package is a shared library. 6891 packageId = pkg->package->id; 6892 char16_t tmpName[sizeof(pkg->package->name)/sizeof(pkg->package->name[0])]; 6893 strcpy16_dtoh(tmpName, pkg->package->name, sizeof(pkg->package->name)/sizeof(pkg->package->name[0])); 6894 printf(" Package %d id=0x%02x name=%s\n", (int)pkgIndex, 6895 pkg->package->id, String8(tmpName).string()); 6896 } 6897 6898 for (size_t typeIndex=0; typeIndex < pg->types.size(); typeIndex++) { 6899 const TypeList& typeList = pg->types[typeIndex]; 6900 if (typeList.isEmpty()) { 6901 continue; 6902 } 6903 const Type* typeConfigs = typeList[0]; 6904 const size_t NTC = typeConfigs->configs.size(); 6905 printf(" type %d configCount=%d entryCount=%d\n", 6906 (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount); 6907 if (typeConfigs->typeSpecFlags != NULL) { 6908 for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) { 6909 uint32_t resID = (0xff000000 & ((packageId)<<24)) 6910 | (0x00ff0000 & ((typeIndex+1)<<16)) 6911 | (0x0000ffff & (entryIndex)); 6912 // Since we are creating resID without actually 6913 // iterating over them, we have no idea which is a 6914 // dynamic reference. We must check. 6915 if (packageId == 0) { 6916 pg->dynamicRefTable.lookupResourceId(&resID); 6917 } 6918 6919 resource_name resName; 6920 if (this->getResourceName(resID, true, &resName)) { 6921 String8 type8; 6922 String8 name8; 6923 if (resName.type8 != NULL) { 6924 type8 = String8(resName.type8, resName.typeLen); 6925 } else { 6926 type8 = String8(resName.type, resName.typeLen); 6927 } 6928 if (resName.name8 != NULL) { 6929 name8 = String8(resName.name8, resName.nameLen); 6930 } else { 6931 name8 = String8(resName.name, resName.nameLen); 6932 } 6933 printf(" spec resource 0x%08x %s:%s/%s: flags=0x%08x\n", 6934 resID, 6935 CHAR16_TO_CSTR(resName.package, resName.packageLen), 6936 type8.string(), name8.string(), 6937 dtohl(typeConfigs->typeSpecFlags[entryIndex])); 6938 } else { 6939 printf(" INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID); 6940 } 6941 } 6942 } 6943 for (size_t configIndex=0; configIndex<NTC; configIndex++) { 6944 const ResTable_type* type = typeConfigs->configs[configIndex]; 6945 if ((((uint64_t)type)&0x3) != 0) { 6946 printf(" NON-INTEGER ResTable_type ADDRESS: %p\n", type); 6947 continue; 6948 } 6949 6950 // Always copy the config, as fields get added and we need to 6951 // set the defaults. 6952 ResTable_config thisConfig; 6953 thisConfig.copyFromDtoH(type->config); 6954 6955 String8 configStr = thisConfig.toString(); 6956 printf(" config %s:\n", configStr.size() > 0 6957 ? configStr.string() : "(default)"); 6958 size_t entryCount = dtohl(type->entryCount); 6959 uint32_t entriesStart = dtohl(type->entriesStart); 6960 if ((entriesStart&0x3) != 0) { 6961 printf(" NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n", entriesStart); 6962 continue; 6963 } 6964 uint32_t typeSize = dtohl(type->header.size); 6965 if ((typeSize&0x3) != 0) { 6966 printf(" NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize); 6967 continue; 6968 } 6969 for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) { 6970 const uint32_t* const eindex = (const uint32_t*) 6971 (((const uint8_t*)type) + dtohs(type->header.headerSize)); 6972 6973 uint32_t thisOffset = dtohl(eindex[entryIndex]); 6974 if (thisOffset == ResTable_type::NO_ENTRY) { 6975 continue; 6976 } 6977 6978 uint32_t resID = (0xff000000 & ((packageId)<<24)) 6979 | (0x00ff0000 & ((typeIndex+1)<<16)) 6980 | (0x0000ffff & (entryIndex)); 6981 if (packageId == 0) { 6982 pg->dynamicRefTable.lookupResourceId(&resID); 6983 } 6984 resource_name resName; 6985 if (this->getResourceName(resID, true, &resName)) { 6986 String8 type8; 6987 String8 name8; 6988 if (resName.type8 != NULL) { 6989 type8 = String8(resName.type8, resName.typeLen); 6990 } else { 6991 type8 = String8(resName.type, resName.typeLen); 6992 } 6993 if (resName.name8 != NULL) { 6994 name8 = String8(resName.name8, resName.nameLen); 6995 } else { 6996 name8 = String8(resName.name, resName.nameLen); 6997 } 6998 printf(" resource 0x%08x %s:%s/%s: ", resID, 6999 CHAR16_TO_CSTR(resName.package, resName.packageLen), 7000 type8.string(), name8.string()); 7001 } else { 7002 printf(" INVALID RESOURCE 0x%08x: ", resID); 7003 } 7004 if ((thisOffset&0x3) != 0) { 7005 printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset); 7006 continue; 7007 } 7008 if ((thisOffset+sizeof(ResTable_entry)) > typeSize) { 7009 printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n", 7010 entriesStart, thisOffset, typeSize); 7011 continue; 7012 } 7013 7014 const ResTable_entry* ent = (const ResTable_entry*) 7015 (((const uint8_t*)type) + entriesStart + thisOffset); 7016 if (((entriesStart + thisOffset)&0x3) != 0) { 7017 printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n", 7018 (entriesStart + thisOffset)); 7019 continue; 7020 } 7021 7022 uintptr_t esize = dtohs(ent->size); 7023 if ((esize&0x3) != 0) { 7024 printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *)esize); 7025 continue; 7026 } 7027 if ((thisOffset+esize) > typeSize) { 7028 printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n", 7029 entriesStart, thisOffset, (void *)esize, typeSize); 7030 continue; 7031 } 7032 7033 const Res_value* valuePtr = NULL; 7034 const ResTable_map_entry* bagPtr = NULL; 7035 Res_value value; 7036 if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) { 7037 printf("<bag>"); 7038 bagPtr = (const ResTable_map_entry*)ent; 7039 } else { 7040 valuePtr = (const Res_value*) 7041 (((const uint8_t*)ent) + esize); 7042 value.copyFrom_dtoh(*valuePtr); 7043 printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)", 7044 (int)value.dataType, (int)value.data, 7045 (int)value.size, (int)value.res0); 7046 } 7047 7048 if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) { 7049 printf(" (PUBLIC)"); 7050 } 7051 printf("\n"); 7052 7053 if (inclValues) { 7054 if (valuePtr != NULL) { 7055 printf(" "); 7056 print_value(typeConfigs->package, value); 7057 } else if (bagPtr != NULL) { 7058 const int N = dtohl(bagPtr->count); 7059 const uint8_t* baseMapPtr = (const uint8_t*)ent; 7060 size_t mapOffset = esize; 7061 const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset); 7062 const uint32_t parent = dtohl(bagPtr->parent.ident); 7063 uint32_t resolvedParent = parent; 7064 if (Res_GETPACKAGE(resolvedParent) + 1 == 0) { 7065 status_t err = pg->dynamicRefTable.lookupResourceId(&resolvedParent); 7066 if (err != NO_ERROR) { 7067 resolvedParent = 0; 7068 } 7069 } 7070 printf(" Parent=0x%08x(Resolved=0x%08x), Count=%d\n", 7071 parent, resolvedParent, N); 7072 for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) { 7073 printf(" #%i (Key=0x%08x): ", 7074 i, dtohl(mapPtr->name.ident)); 7075 value.copyFrom_dtoh(mapPtr->value); 7076 print_value(typeConfigs->package, value); 7077 const size_t size = dtohs(mapPtr->value.size); 7078 mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value); 7079 mapPtr = (ResTable_map*)(baseMapPtr+mapOffset); 7080 } 7081 } 7082 } 7083 } 7084 } 7085 } 7086 } 7087} 7088 7089} // namespace android 7090