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 <androidfw/ResourceTypes.h> 21 #include <utils/Atomic.h> 22 #include <utils/ByteOrder.h> 23 #include <utils/Debug.h> 24 #include <utils/Log.h> 25 #include <utils/String16.h> 26 #include <utils/String8.h> 27 #include <utils/TextOutput.h> 28 29 #include <stdlib.h> 30 #include <string.h> 31 #include <memory.h> 32 #include <ctype.h> 33 #include <stdint.h> 34 35 #ifndef INT32_MAX 36 #define INT32_MAX ((int32_t)(2147483647)) 37 #endif 38 39 #define POOL_NOISY(x) //x 40 #define XML_NOISY(x) //x 41 #define TABLE_NOISY(x) //x 42 #define TABLE_GETENTRY(x) //x 43 #define TABLE_SUPER_NOISY(x) //x 44 #define LOAD_TABLE_NOISY(x) //x 45 #define TABLE_THEME(x) //x 46 47 namespace android { 48 49 #ifdef HAVE_WINSOCK 50 #undef nhtol 51 #undef htonl 52 53 #ifdef HAVE_LITTLE_ENDIAN 54 #define ntohl(x) ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) ) 55 #define htonl(x) ntohl(x) 56 #define ntohs(x) ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) ) 57 #define htons(x) ntohs(x) 58 #else 59 #define ntohl(x) (x) 60 #define htonl(x) (x) 61 #define ntohs(x) (x) 62 #define htons(x) (x) 63 #endif 64 #endif 65 66 #define IDMAP_MAGIC 0x706d6469 67 // size measured in sizeof(uint32_t) 68 #define IDMAP_HEADER_SIZE (ResTable::IDMAP_HEADER_SIZE_BYTES / sizeof(uint32_t)) 69 70 static void printToLogFunc(void* cookie, const char* txt) 71 { 72 ALOGV("%s", txt); 73 } 74 75 // Standard C isspace() is only required to look at the low byte of its input, so 76 // produces incorrect results for UTF-16 characters. For safety's sake, assume that 77 // any high-byte UTF-16 code point is not whitespace. 78 inline int isspace16(char16_t c) { 79 return (c < 0x0080 && isspace(c)); 80 } 81 82 // range checked; guaranteed to NUL-terminate within the stated number of available slots 83 // NOTE: if this truncates the dst string due to running out of space, no attempt is 84 // made to avoid splitting surrogate pairs. 85 static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail) 86 { 87 uint16_t* last = dst + avail - 1; 88 while (*src && (dst < last)) { 89 char16_t s = dtohs(*src); 90 *dst++ = s; 91 src++; 92 } 93 *dst = 0; 94 } 95 96 static status_t validate_chunk(const ResChunk_header* chunk, 97 size_t minSize, 98 const uint8_t* dataEnd, 99 const char* name) 100 { 101 const uint16_t headerSize = dtohs(chunk->headerSize); 102 const uint32_t size = dtohl(chunk->size); 103 104 if (headerSize >= minSize) { 105 if (headerSize <= size) { 106 if (((headerSize|size)&0x3) == 0) { 107 if ((ssize_t)size <= (dataEnd-((const uint8_t*)chunk))) { 108 return NO_ERROR; 109 } 110 ALOGW("%s data size %p extends beyond resource end %p.", 111 name, (void*)size, 112 (void*)(dataEnd-((const uint8_t*)chunk))); 113 return BAD_TYPE; 114 } 115 ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.", 116 name, (int)size, (int)headerSize); 117 return BAD_TYPE; 118 } 119 ALOGW("%s size %p is smaller than header size %p.", 120 name, (void*)size, (void*)(int)headerSize); 121 return BAD_TYPE; 122 } 123 ALOGW("%s header size %p is too small.", 124 name, (void*)(int)headerSize); 125 return BAD_TYPE; 126 } 127 128 inline void Res_value::copyFrom_dtoh(const Res_value& src) 129 { 130 size = dtohs(src.size); 131 res0 = src.res0; 132 dataType = src.dataType; 133 data = dtohl(src.data); 134 } 135 136 void Res_png_9patch::deviceToFile() 137 { 138 for (int i = 0; i < numXDivs; i++) { 139 xDivs[i] = htonl(xDivs[i]); 140 } 141 for (int i = 0; i < numYDivs; i++) { 142 yDivs[i] = htonl(yDivs[i]); 143 } 144 paddingLeft = htonl(paddingLeft); 145 paddingRight = htonl(paddingRight); 146 paddingTop = htonl(paddingTop); 147 paddingBottom = htonl(paddingBottom); 148 for (int i=0; i<numColors; i++) { 149 colors[i] = htonl(colors[i]); 150 } 151 } 152 153 void Res_png_9patch::fileToDevice() 154 { 155 for (int i = 0; i < numXDivs; i++) { 156 xDivs[i] = ntohl(xDivs[i]); 157 } 158 for (int i = 0; i < numYDivs; i++) { 159 yDivs[i] = ntohl(yDivs[i]); 160 } 161 paddingLeft = ntohl(paddingLeft); 162 paddingRight = ntohl(paddingRight); 163 paddingTop = ntohl(paddingTop); 164 paddingBottom = ntohl(paddingBottom); 165 for (int i=0; i<numColors; i++) { 166 colors[i] = ntohl(colors[i]); 167 } 168 } 169 170 size_t Res_png_9patch::serializedSize() 171 { 172 // The size of this struct is 32 bytes on the 32-bit target system 173 // 4 * int8_t 174 // 4 * int32_t 175 // 3 * pointer 176 return 32 177 + numXDivs * sizeof(int32_t) 178 + numYDivs * sizeof(int32_t) 179 + numColors * sizeof(uint32_t); 180 } 181 182 void* Res_png_9patch::serialize() 183 { 184 // Use calloc since we're going to leave a few holes in the data 185 // and want this to run cleanly under valgrind 186 void* newData = calloc(1, serializedSize()); 187 serialize(newData); 188 return newData; 189 } 190 191 void Res_png_9patch::serialize(void * outData) 192 { 193 char* data = (char*) outData; 194 memmove(data, &wasDeserialized, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors 195 memmove(data + 12, &paddingLeft, 16); // copy paddingXXXX 196 data += 32; 197 198 memmove(data, this->xDivs, numXDivs * sizeof(int32_t)); 199 data += numXDivs * sizeof(int32_t); 200 memmove(data, this->yDivs, numYDivs * sizeof(int32_t)); 201 data += numYDivs * sizeof(int32_t); 202 memmove(data, this->colors, numColors * sizeof(uint32_t)); 203 } 204 205 static void deserializeInternal(const void* inData, Res_png_9patch* outData) { 206 char* patch = (char*) inData; 207 if (inData != outData) { 208 memmove(&outData->wasDeserialized, patch, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors 209 memmove(&outData->paddingLeft, patch + 12, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors 210 } 211 outData->wasDeserialized = true; 212 char* data = (char*)outData; 213 data += sizeof(Res_png_9patch); 214 outData->xDivs = (int32_t*) data; 215 data += outData->numXDivs * sizeof(int32_t); 216 outData->yDivs = (int32_t*) data; 217 data += outData->numYDivs * sizeof(int32_t); 218 outData->colors = (uint32_t*) data; 219 } 220 221 static bool assertIdmapHeader(const uint32_t* map, size_t sizeBytes) 222 { 223 if (sizeBytes < ResTable::IDMAP_HEADER_SIZE_BYTES) { 224 ALOGW("idmap assertion failed: size=%d bytes\n", (int)sizeBytes); 225 return false; 226 } 227 if (*map != htodl(IDMAP_MAGIC)) { // htodl: map data expected to be in correct endianess 228 ALOGW("idmap assertion failed: invalid magic found (is 0x%08x, expected 0x%08x)\n", 229 *map, htodl(IDMAP_MAGIC)); 230 return false; 231 } 232 return true; 233 } 234 235 static status_t idmapLookup(const uint32_t* map, size_t sizeBytes, uint32_t key, uint32_t* outValue) 236 { 237 // see README for details on the format of map 238 if (!assertIdmapHeader(map, sizeBytes)) { 239 return UNKNOWN_ERROR; 240 } 241 map = map + IDMAP_HEADER_SIZE; // skip ahead to data segment 242 // size of data block, in uint32_t 243 const size_t size = (sizeBytes - ResTable::IDMAP_HEADER_SIZE_BYTES) / sizeof(uint32_t); 244 const uint32_t type = Res_GETTYPE(key) + 1; // add one, idmap stores "public" type id 245 const uint32_t entry = Res_GETENTRY(key); 246 const uint32_t typeCount = *map; 247 248 if (type > typeCount) { 249 ALOGW("Resource ID map: type=%d exceeds number of types=%d\n", type, typeCount); 250 return UNKNOWN_ERROR; 251 } 252 if (typeCount > size) { 253 ALOGW("Resource ID map: number of types=%d exceeds size of map=%d\n", typeCount, (int)size); 254 return UNKNOWN_ERROR; 255 } 256 const uint32_t typeOffset = map[type]; 257 if (typeOffset == 0) { 258 *outValue = 0; 259 return NO_ERROR; 260 } 261 if (typeOffset + 1 > size) { 262 ALOGW("Resource ID map: type offset=%d exceeds reasonable value, size of map=%d\n", 263 typeOffset, (int)size); 264 return UNKNOWN_ERROR; 265 } 266 const uint32_t entryCount = map[typeOffset]; 267 const uint32_t entryOffset = map[typeOffset + 1]; 268 if (entryCount == 0 || entry < entryOffset || entry - entryOffset > entryCount - 1) { 269 *outValue = 0; 270 return NO_ERROR; 271 } 272 const uint32_t index = typeOffset + 2 + entry - entryOffset; 273 if (index > size) { 274 ALOGW("Resource ID map: entry index=%d exceeds size of map=%d\n", index, (int)size); 275 *outValue = 0; 276 return NO_ERROR; 277 } 278 *outValue = map[index]; 279 280 return NO_ERROR; 281 } 282 283 static status_t getIdmapPackageId(const uint32_t* map, size_t mapSize, uint32_t *outId) 284 { 285 if (!assertIdmapHeader(map, mapSize)) { 286 return UNKNOWN_ERROR; 287 } 288 const uint32_t* p = map + IDMAP_HEADER_SIZE + 1; 289 while (*p == 0) { 290 ++p; 291 } 292 *outId = (map[*p + IDMAP_HEADER_SIZE + 2] >> 24) & 0x000000ff; 293 return NO_ERROR; 294 } 295 296 Res_png_9patch* Res_png_9patch::deserialize(const void* inData) 297 { 298 if (sizeof(void*) != sizeof(int32_t)) { 299 ALOGE("Cannot deserialize on non 32-bit system\n"); 300 return NULL; 301 } 302 deserializeInternal(inData, (Res_png_9patch*) inData); 303 return (Res_png_9patch*) inData; 304 } 305 306 // -------------------------------------------------------------------- 307 // -------------------------------------------------------------------- 308 // -------------------------------------------------------------------- 309 310 ResStringPool::ResStringPool() 311 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 312 { 313 } 314 315 ResStringPool::ResStringPool(const void* data, size_t size, bool copyData) 316 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 317 { 318 setTo(data, size, copyData); 319 } 320 321 ResStringPool::~ResStringPool() 322 { 323 uninit(); 324 } 325 326 status_t ResStringPool::setTo(const void* data, size_t size, bool copyData) 327 { 328 if (!data || !size) { 329 return (mError=BAD_TYPE); 330 } 331 332 uninit(); 333 334 const bool notDeviceEndian = htods(0xf0) != 0xf0; 335 336 if (copyData || notDeviceEndian) { 337 mOwnedData = malloc(size); 338 if (mOwnedData == NULL) { 339 return (mError=NO_MEMORY); 340 } 341 memcpy(mOwnedData, data, size); 342 data = mOwnedData; 343 } 344 345 mHeader = (const ResStringPool_header*)data; 346 347 if (notDeviceEndian) { 348 ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader); 349 h->header.headerSize = dtohs(mHeader->header.headerSize); 350 h->header.type = dtohs(mHeader->header.type); 351 h->header.size = dtohl(mHeader->header.size); 352 h->stringCount = dtohl(mHeader->stringCount); 353 h->styleCount = dtohl(mHeader->styleCount); 354 h->flags = dtohl(mHeader->flags); 355 h->stringsStart = dtohl(mHeader->stringsStart); 356 h->stylesStart = dtohl(mHeader->stylesStart); 357 } 358 359 if (mHeader->header.headerSize > mHeader->header.size 360 || mHeader->header.size > size) { 361 ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n", 362 (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size); 363 return (mError=BAD_TYPE); 364 } 365 mSize = mHeader->header.size; 366 mEntries = (const uint32_t*) 367 (((const uint8_t*)data)+mHeader->header.headerSize); 368 369 if (mHeader->stringCount > 0) { 370 if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount) // uint32 overflow? 371 || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))) 372 > size) { 373 ALOGW("Bad string block: entry of %d items extends past data size %d\n", 374 (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))), 375 (int)size); 376 return (mError=BAD_TYPE); 377 } 378 379 size_t charSize; 380 if (mHeader->flags&ResStringPool_header::UTF8_FLAG) { 381 charSize = sizeof(uint8_t); 382 mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**)); 383 } else { 384 charSize = sizeof(char16_t); 385 } 386 387 mStrings = (const void*) 388 (((const uint8_t*)data)+mHeader->stringsStart); 389 if (mHeader->stringsStart >= (mHeader->header.size-sizeof(uint16_t))) { 390 ALOGW("Bad string block: string pool starts at %d, after total size %d\n", 391 (int)mHeader->stringsStart, (int)mHeader->header.size); 392 return (mError=BAD_TYPE); 393 } 394 if (mHeader->styleCount == 0) { 395 mStringPoolSize = 396 (mHeader->header.size-mHeader->stringsStart)/charSize; 397 } else { 398 // check invariant: styles starts before end of data 399 if (mHeader->stylesStart >= (mHeader->header.size-sizeof(uint16_t))) { 400 ALOGW("Bad style block: style block starts at %d past data size of %d\n", 401 (int)mHeader->stylesStart, (int)mHeader->header.size); 402 return (mError=BAD_TYPE); 403 } 404 // check invariant: styles follow the strings 405 if (mHeader->stylesStart <= mHeader->stringsStart) { 406 ALOGW("Bad style block: style block starts at %d, before strings at %d\n", 407 (int)mHeader->stylesStart, (int)mHeader->stringsStart); 408 return (mError=BAD_TYPE); 409 } 410 mStringPoolSize = 411 (mHeader->stylesStart-mHeader->stringsStart)/charSize; 412 } 413 414 // check invariant: stringCount > 0 requires a string pool to exist 415 if (mStringPoolSize == 0) { 416 ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount); 417 return (mError=BAD_TYPE); 418 } 419 420 if (notDeviceEndian) { 421 size_t i; 422 uint32_t* e = const_cast<uint32_t*>(mEntries); 423 for (i=0; i<mHeader->stringCount; i++) { 424 e[i] = dtohl(mEntries[i]); 425 } 426 if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) { 427 const char16_t* strings = (const char16_t*)mStrings; 428 char16_t* s = const_cast<char16_t*>(strings); 429 for (i=0; i<mStringPoolSize; i++) { 430 s[i] = dtohs(strings[i]); 431 } 432 } 433 } 434 435 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG && 436 ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) || 437 (!mHeader->flags&ResStringPool_header::UTF8_FLAG && 438 ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) { 439 ALOGW("Bad string block: last string is not 0-terminated\n"); 440 return (mError=BAD_TYPE); 441 } 442 } else { 443 mStrings = NULL; 444 mStringPoolSize = 0; 445 } 446 447 if (mHeader->styleCount > 0) { 448 mEntryStyles = mEntries + mHeader->stringCount; 449 // invariant: integer overflow in calculating mEntryStyles 450 if (mEntryStyles < mEntries) { 451 ALOGW("Bad string block: integer overflow finding styles\n"); 452 return (mError=BAD_TYPE); 453 } 454 455 if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) { 456 ALOGW("Bad string block: entry of %d styles extends past data size %d\n", 457 (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader), 458 (int)size); 459 return (mError=BAD_TYPE); 460 } 461 mStyles = (const uint32_t*) 462 (((const uint8_t*)data)+mHeader->stylesStart); 463 if (mHeader->stylesStart >= mHeader->header.size) { 464 ALOGW("Bad string block: style pool starts %d, after total size %d\n", 465 (int)mHeader->stylesStart, (int)mHeader->header.size); 466 return (mError=BAD_TYPE); 467 } 468 mStylePoolSize = 469 (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t); 470 471 if (notDeviceEndian) { 472 size_t i; 473 uint32_t* e = const_cast<uint32_t*>(mEntryStyles); 474 for (i=0; i<mHeader->styleCount; i++) { 475 e[i] = dtohl(mEntryStyles[i]); 476 } 477 uint32_t* s = const_cast<uint32_t*>(mStyles); 478 for (i=0; i<mStylePoolSize; i++) { 479 s[i] = dtohl(mStyles[i]); 480 } 481 } 482 483 const ResStringPool_span endSpan = { 484 { htodl(ResStringPool_span::END) }, 485 htodl(ResStringPool_span::END), htodl(ResStringPool_span::END) 486 }; 487 if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))], 488 &endSpan, sizeof(endSpan)) != 0) { 489 ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n"); 490 return (mError=BAD_TYPE); 491 } 492 } else { 493 mEntryStyles = NULL; 494 mStyles = NULL; 495 mStylePoolSize = 0; 496 } 497 498 return (mError=NO_ERROR); 499 } 500 501 status_t ResStringPool::getError() const 502 { 503 return mError; 504 } 505 506 void ResStringPool::uninit() 507 { 508 mError = NO_INIT; 509 if (mOwnedData) { 510 free(mOwnedData); 511 mOwnedData = NULL; 512 } 513 if (mHeader != NULL && mCache != NULL) { 514 for (size_t x = 0; x < mHeader->stringCount; x++) { 515 if (mCache[x] != NULL) { 516 free(mCache[x]); 517 mCache[x] = NULL; 518 } 519 } 520 free(mCache); 521 mCache = NULL; 522 } 523 } 524 525 /** 526 * Strings in UTF-16 format have length indicated by a length encoded in the 527 * stored data. It is either 1 or 2 characters of length data. This allows a 528 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that 529 * much data in a string, you're abusing them. 530 * 531 * If the high bit is set, then there are two characters or 4 bytes of length 532 * data encoded. In that case, drop the high bit of the first character and 533 * add it together with the next character. 534 */ 535 static inline size_t 536 decodeLength(const char16_t** str) 537 { 538 size_t len = **str; 539 if ((len & 0x8000) != 0) { 540 (*str)++; 541 len = ((len & 0x7FFF) << 16) | **str; 542 } 543 (*str)++; 544 return len; 545 } 546 547 /** 548 * Strings in UTF-8 format have length indicated by a length encoded in the 549 * stored data. It is either 1 or 2 characters of length data. This allows a 550 * maximum length of 0x7FFF (32767 bytes), but you should consider storing 551 * text in another way if you're using that much data in a single string. 552 * 553 * If the high bit is set, then there are two characters or 2 bytes of length 554 * data encoded. In that case, drop the high bit of the first character and 555 * add it together with the next character. 556 */ 557 static inline size_t 558 decodeLength(const uint8_t** str) 559 { 560 size_t len = **str; 561 if ((len & 0x80) != 0) { 562 (*str)++; 563 len = ((len & 0x7F) << 8) | **str; 564 } 565 (*str)++; 566 return len; 567 } 568 569 const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const 570 { 571 if (mError == NO_ERROR && idx < mHeader->stringCount) { 572 const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0; 573 const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t)); 574 if (off < (mStringPoolSize-1)) { 575 if (!isUTF8) { 576 const char16_t* strings = (char16_t*)mStrings; 577 const char16_t* str = strings+off; 578 579 *u16len = decodeLength(&str); 580 if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) { 581 return str; 582 } else { 583 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 584 (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize); 585 } 586 } else { 587 const uint8_t* strings = (uint8_t*)mStrings; 588 const uint8_t* u8str = strings+off; 589 590 *u16len = decodeLength(&u8str); 591 size_t u8len = decodeLength(&u8str); 592 593 // encLen must be less than 0x7FFF due to encoding. 594 if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) { 595 AutoMutex lock(mDecodeLock); 596 597 if (mCache[idx] != NULL) { 598 return mCache[idx]; 599 } 600 601 ssize_t actualLen = utf8_to_utf16_length(u8str, u8len); 602 if (actualLen < 0 || (size_t)actualLen != *u16len) { 603 ALOGW("Bad string block: string #%lld decoded length is not correct " 604 "%lld vs %llu\n", 605 (long long)idx, (long long)actualLen, (long long)*u16len); 606 return NULL; 607 } 608 609 char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t)); 610 if (!u16str) { 611 ALOGW("No memory when trying to allocate decode cache for string #%d\n", 612 (int)idx); 613 return NULL; 614 } 615 616 utf8_to_utf16(u8str, u8len, u16str); 617 mCache[idx] = u16str; 618 return u16str; 619 } else { 620 ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n", 621 (long long)idx, (long long)(u8str+u8len-strings), 622 (long long)mStringPoolSize); 623 } 624 } 625 } else { 626 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 627 (int)idx, (int)(off*sizeof(uint16_t)), 628 (int)(mStringPoolSize*sizeof(uint16_t))); 629 } 630 } 631 return NULL; 632 } 633 634 const char* ResStringPool::string8At(size_t idx, size_t* outLen) const 635 { 636 if (mError == NO_ERROR && idx < mHeader->stringCount) { 637 const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0; 638 const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t)); 639 if (off < (mStringPoolSize-1)) { 640 if (isUTF8) { 641 const uint8_t* strings = (uint8_t*)mStrings; 642 const uint8_t* str = strings+off; 643 *outLen = decodeLength(&str); 644 size_t encLen = decodeLength(&str); 645 if ((uint32_t)(str+encLen-strings) < mStringPoolSize) { 646 return (const char*)str; 647 } else { 648 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 649 (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize); 650 } 651 } 652 } else { 653 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 654 (int)idx, (int)(off*sizeof(uint16_t)), 655 (int)(mStringPoolSize*sizeof(uint16_t))); 656 } 657 } 658 return NULL; 659 } 660 661 const String8 ResStringPool::string8ObjectAt(size_t idx) const 662 { 663 size_t len; 664 const char *str = (const char*)string8At(idx, &len); 665 if (str != NULL) { 666 return String8(str); 667 } 668 return String8(stringAt(idx, &len)); 669 } 670 671 const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const 672 { 673 return styleAt(ref.index); 674 } 675 676 const ResStringPool_span* ResStringPool::styleAt(size_t idx) const 677 { 678 if (mError == NO_ERROR && idx < mHeader->styleCount) { 679 const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t)); 680 if (off < mStylePoolSize) { 681 return (const ResStringPool_span*)(mStyles+off); 682 } else { 683 ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n", 684 (int)idx, (int)(off*sizeof(uint32_t)), 685 (int)(mStylePoolSize*sizeof(uint32_t))); 686 } 687 } 688 return NULL; 689 } 690 691 ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const 692 { 693 if (mError != NO_ERROR) { 694 return mError; 695 } 696 697 size_t len; 698 699 // TODO optimize searching for UTF-8 strings taking into account 700 // the cache fill to determine when to convert the searched-for 701 // string key to UTF-8. 702 703 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 704 // Do a binary search for the string... 705 ssize_t l = 0; 706 ssize_t h = mHeader->stringCount-1; 707 708 ssize_t mid; 709 while (l <= h) { 710 mid = l + (h - l)/2; 711 const char16_t* s = stringAt(mid, &len); 712 int c = s ? strzcmp16(s, len, str, strLen) : -1; 713 POOL_NOISY(printf("Looking for %s, at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 714 String8(str).string(), 715 String8(s).string(), 716 c, (int)l, (int)mid, (int)h)); 717 if (c == 0) { 718 return mid; 719 } else if (c < 0) { 720 l = mid + 1; 721 } else { 722 h = mid - 1; 723 } 724 } 725 } else { 726 // It is unusual to get the ID from an unsorted string block... 727 // most often this happens because we want to get IDs for style 728 // span tags; since those always appear at the end of the string 729 // block, start searching at the back. 730 for (int i=mHeader->stringCount-1; i>=0; i--) { 731 const char16_t* s = stringAt(i, &len); 732 POOL_NOISY(printf("Looking for %s, at %s, i=%d\n", 733 String8(str, strLen).string(), 734 String8(s).string(), 735 i)); 736 if (s && strzcmp16(s, len, str, strLen) == 0) { 737 return i; 738 } 739 } 740 } 741 742 return NAME_NOT_FOUND; 743 } 744 745 size_t ResStringPool::size() const 746 { 747 return (mError == NO_ERROR) ? mHeader->stringCount : 0; 748 } 749 750 size_t ResStringPool::styleCount() const 751 { 752 return (mError == NO_ERROR) ? mHeader->styleCount : 0; 753 } 754 755 size_t ResStringPool::bytes() const 756 { 757 return (mError == NO_ERROR) ? mHeader->header.size : 0; 758 } 759 760 bool ResStringPool::isSorted() const 761 { 762 return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0; 763 } 764 765 bool ResStringPool::isUTF8() const 766 { 767 return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0; 768 } 769 770 // -------------------------------------------------------------------- 771 // -------------------------------------------------------------------- 772 // -------------------------------------------------------------------- 773 774 ResXMLParser::ResXMLParser(const ResXMLTree& tree) 775 : mTree(tree), mEventCode(BAD_DOCUMENT) 776 { 777 } 778 779 void ResXMLParser::restart() 780 { 781 mCurNode = NULL; 782 mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT; 783 } 784 const ResStringPool& ResXMLParser::getStrings() const 785 { 786 return mTree.mStrings; 787 } 788 789 ResXMLParser::event_code_t ResXMLParser::getEventType() const 790 { 791 return mEventCode; 792 } 793 794 ResXMLParser::event_code_t ResXMLParser::next() 795 { 796 if (mEventCode == START_DOCUMENT) { 797 mCurNode = mTree.mRootNode; 798 mCurExt = mTree.mRootExt; 799 return (mEventCode=mTree.mRootCode); 800 } else if (mEventCode >= FIRST_CHUNK_CODE) { 801 return nextNode(); 802 } 803 return mEventCode; 804 } 805 806 int32_t ResXMLParser::getCommentID() const 807 { 808 return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1; 809 } 810 811 const uint16_t* ResXMLParser::getComment(size_t* outLen) const 812 { 813 int32_t id = getCommentID(); 814 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 815 } 816 817 uint32_t ResXMLParser::getLineNumber() const 818 { 819 return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1; 820 } 821 822 int32_t ResXMLParser::getTextID() const 823 { 824 if (mEventCode == TEXT) { 825 return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index); 826 } 827 return -1; 828 } 829 830 const uint16_t* ResXMLParser::getText(size_t* outLen) const 831 { 832 int32_t id = getTextID(); 833 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 834 } 835 836 ssize_t ResXMLParser::getTextValue(Res_value* outValue) const 837 { 838 if (mEventCode == TEXT) { 839 outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData); 840 return sizeof(Res_value); 841 } 842 return BAD_TYPE; 843 } 844 845 int32_t ResXMLParser::getNamespacePrefixID() const 846 { 847 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 848 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index); 849 } 850 return -1; 851 } 852 853 const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const 854 { 855 int32_t id = getNamespacePrefixID(); 856 //printf("prefix=%d event=%p\n", id, mEventCode); 857 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 858 } 859 860 int32_t ResXMLParser::getNamespaceUriID() const 861 { 862 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 863 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index); 864 } 865 return -1; 866 } 867 868 const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const 869 { 870 int32_t id = getNamespaceUriID(); 871 //printf("uri=%d event=%p\n", id, mEventCode); 872 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 873 } 874 875 int32_t ResXMLParser::getElementNamespaceID() const 876 { 877 if (mEventCode == START_TAG) { 878 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index); 879 } 880 if (mEventCode == END_TAG) { 881 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index); 882 } 883 return -1; 884 } 885 886 const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const 887 { 888 int32_t id = getElementNamespaceID(); 889 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 890 } 891 892 int32_t ResXMLParser::getElementNameID() const 893 { 894 if (mEventCode == START_TAG) { 895 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index); 896 } 897 if (mEventCode == END_TAG) { 898 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index); 899 } 900 return -1; 901 } 902 903 const uint16_t* ResXMLParser::getElementName(size_t* outLen) const 904 { 905 int32_t id = getElementNameID(); 906 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 907 } 908 909 size_t ResXMLParser::getAttributeCount() const 910 { 911 if (mEventCode == START_TAG) { 912 return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount); 913 } 914 return 0; 915 } 916 917 int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const 918 { 919 if (mEventCode == START_TAG) { 920 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 921 if (idx < dtohs(tag->attributeCount)) { 922 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 923 (((const uint8_t*)tag) 924 + dtohs(tag->attributeStart) 925 + (dtohs(tag->attributeSize)*idx)); 926 return dtohl(attr->ns.index); 927 } 928 } 929 return -2; 930 } 931 932 const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const 933 { 934 int32_t id = getAttributeNamespaceID(idx); 935 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 936 //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id)); 937 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 938 } 939 940 int32_t ResXMLParser::getAttributeNameID(size_t idx) const 941 { 942 if (mEventCode == START_TAG) { 943 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 944 if (idx < dtohs(tag->attributeCount)) { 945 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 946 (((const uint8_t*)tag) 947 + dtohs(tag->attributeStart) 948 + (dtohs(tag->attributeSize)*idx)); 949 return dtohl(attr->name.index); 950 } 951 } 952 return -1; 953 } 954 955 const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const 956 { 957 int32_t id = getAttributeNameID(idx); 958 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 959 //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id)); 960 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 961 } 962 963 uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const 964 { 965 int32_t id = getAttributeNameID(idx); 966 if (id >= 0 && (size_t)id < mTree.mNumResIds) { 967 return dtohl(mTree.mResIds[id]); 968 } 969 return 0; 970 } 971 972 int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const 973 { 974 if (mEventCode == START_TAG) { 975 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 976 if (idx < dtohs(tag->attributeCount)) { 977 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 978 (((const uint8_t*)tag) 979 + dtohs(tag->attributeStart) 980 + (dtohs(tag->attributeSize)*idx)); 981 return dtohl(attr->rawValue.index); 982 } 983 } 984 return -1; 985 } 986 987 const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const 988 { 989 int32_t id = getAttributeValueStringID(idx); 990 //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id)); 991 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 992 } 993 994 int32_t ResXMLParser::getAttributeDataType(size_t idx) const 995 { 996 if (mEventCode == START_TAG) { 997 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 998 if (idx < dtohs(tag->attributeCount)) { 999 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1000 (((const uint8_t*)tag) 1001 + dtohs(tag->attributeStart) 1002 + (dtohs(tag->attributeSize)*idx)); 1003 return attr->typedValue.dataType; 1004 } 1005 } 1006 return Res_value::TYPE_NULL; 1007 } 1008 1009 int32_t ResXMLParser::getAttributeData(size_t idx) const 1010 { 1011 if (mEventCode == START_TAG) { 1012 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1013 if (idx < dtohs(tag->attributeCount)) { 1014 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1015 (((const uint8_t*)tag) 1016 + dtohs(tag->attributeStart) 1017 + (dtohs(tag->attributeSize)*idx)); 1018 return dtohl(attr->typedValue.data); 1019 } 1020 } 1021 return 0; 1022 } 1023 1024 ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const 1025 { 1026 if (mEventCode == START_TAG) { 1027 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1028 if (idx < dtohs(tag->attributeCount)) { 1029 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1030 (((const uint8_t*)tag) 1031 + dtohs(tag->attributeStart) 1032 + (dtohs(tag->attributeSize)*idx)); 1033 outValue->copyFrom_dtoh(attr->typedValue); 1034 return sizeof(Res_value); 1035 } 1036 } 1037 return BAD_TYPE; 1038 } 1039 1040 ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const 1041 { 1042 String16 nsStr(ns != NULL ? ns : ""); 1043 String16 attrStr(attr); 1044 return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0, 1045 attrStr.string(), attrStr.size()); 1046 } 1047 1048 ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen, 1049 const char16_t* attr, size_t attrLen) const 1050 { 1051 if (mEventCode == START_TAG) { 1052 const size_t N = getAttributeCount(); 1053 for (size_t i=0; i<N; i++) { 1054 size_t curNsLen, curAttrLen; 1055 const char16_t* curNs = getAttributeNamespace(i, &curNsLen); 1056 const char16_t* curAttr = getAttributeName(i, &curAttrLen); 1057 //printf("%d: ns=%p attr=%p curNs=%p curAttr=%p\n", 1058 // i, ns, attr, curNs, curAttr); 1059 //printf(" --> attr=%s, curAttr=%s\n", 1060 // String8(attr).string(), String8(curAttr).string()); 1061 if (attr && curAttr && (strzcmp16(attr, attrLen, curAttr, curAttrLen) == 0)) { 1062 if (ns == NULL) { 1063 if (curNs == NULL) return i; 1064 } else if (curNs != NULL) { 1065 //printf(" --> ns=%s, curNs=%s\n", 1066 // String8(ns).string(), String8(curNs).string()); 1067 if (strzcmp16(ns, nsLen, curNs, curNsLen) == 0) return i; 1068 } 1069 } 1070 } 1071 } 1072 1073 return NAME_NOT_FOUND; 1074 } 1075 1076 ssize_t ResXMLParser::indexOfID() const 1077 { 1078 if (mEventCode == START_TAG) { 1079 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex); 1080 if (idx > 0) return (idx-1); 1081 } 1082 return NAME_NOT_FOUND; 1083 } 1084 1085 ssize_t ResXMLParser::indexOfClass() const 1086 { 1087 if (mEventCode == START_TAG) { 1088 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex); 1089 if (idx > 0) return (idx-1); 1090 } 1091 return NAME_NOT_FOUND; 1092 } 1093 1094 ssize_t ResXMLParser::indexOfStyle() const 1095 { 1096 if (mEventCode == START_TAG) { 1097 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex); 1098 if (idx > 0) return (idx-1); 1099 } 1100 return NAME_NOT_FOUND; 1101 } 1102 1103 ResXMLParser::event_code_t ResXMLParser::nextNode() 1104 { 1105 if (mEventCode < 0) { 1106 return mEventCode; 1107 } 1108 1109 do { 1110 const ResXMLTree_node* next = (const ResXMLTree_node*) 1111 (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size)); 1112 //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next); 1113 1114 if (((const uint8_t*)next) >= mTree.mDataEnd) { 1115 mCurNode = NULL; 1116 return (mEventCode=END_DOCUMENT); 1117 } 1118 1119 if (mTree.validateNode(next) != NO_ERROR) { 1120 mCurNode = NULL; 1121 return (mEventCode=BAD_DOCUMENT); 1122 } 1123 1124 mCurNode = next; 1125 const uint16_t headerSize = dtohs(next->header.headerSize); 1126 const uint32_t totalSize = dtohl(next->header.size); 1127 mCurExt = ((const uint8_t*)next) + headerSize; 1128 size_t minExtSize = 0; 1129 event_code_t eventCode = (event_code_t)dtohs(next->header.type); 1130 switch ((mEventCode=eventCode)) { 1131 case RES_XML_START_NAMESPACE_TYPE: 1132 case RES_XML_END_NAMESPACE_TYPE: 1133 minExtSize = sizeof(ResXMLTree_namespaceExt); 1134 break; 1135 case RES_XML_START_ELEMENT_TYPE: 1136 minExtSize = sizeof(ResXMLTree_attrExt); 1137 break; 1138 case RES_XML_END_ELEMENT_TYPE: 1139 minExtSize = sizeof(ResXMLTree_endElementExt); 1140 break; 1141 case RES_XML_CDATA_TYPE: 1142 minExtSize = sizeof(ResXMLTree_cdataExt); 1143 break; 1144 default: 1145 ALOGW("Unknown XML block: header type %d in node at %d\n", 1146 (int)dtohs(next->header.type), 1147 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader))); 1148 continue; 1149 } 1150 1151 if ((totalSize-headerSize) < minExtSize) { 1152 ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n", 1153 (int)dtohs(next->header.type), 1154 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)), 1155 (int)(totalSize-headerSize), (int)minExtSize); 1156 return (mEventCode=BAD_DOCUMENT); 1157 } 1158 1159 //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n", 1160 // mCurNode, mCurExt, headerSize, minExtSize); 1161 1162 return eventCode; 1163 } while (true); 1164 } 1165 1166 void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const 1167 { 1168 pos->eventCode = mEventCode; 1169 pos->curNode = mCurNode; 1170 pos->curExt = mCurExt; 1171 } 1172 1173 void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos) 1174 { 1175 mEventCode = pos.eventCode; 1176 mCurNode = pos.curNode; 1177 mCurExt = pos.curExt; 1178 } 1179 1180 1181 // -------------------------------------------------------------------- 1182 1183 static volatile int32_t gCount = 0; 1184 1185 ResXMLTree::ResXMLTree() 1186 : ResXMLParser(*this) 1187 , mError(NO_INIT), mOwnedData(NULL) 1188 { 1189 //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1190 restart(); 1191 } 1192 1193 ResXMLTree::ResXMLTree(const void* data, size_t size, bool copyData) 1194 : ResXMLParser(*this) 1195 , mError(NO_INIT), mOwnedData(NULL) 1196 { 1197 //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1198 setTo(data, size, copyData); 1199 } 1200 1201 ResXMLTree::~ResXMLTree() 1202 { 1203 //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1); 1204 uninit(); 1205 } 1206 1207 status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData) 1208 { 1209 uninit(); 1210 mEventCode = START_DOCUMENT; 1211 1212 if (copyData) { 1213 mOwnedData = malloc(size); 1214 if (mOwnedData == NULL) { 1215 return (mError=NO_MEMORY); 1216 } 1217 memcpy(mOwnedData, data, size); 1218 data = mOwnedData; 1219 } 1220 1221 mHeader = (const ResXMLTree_header*)data; 1222 mSize = dtohl(mHeader->header.size); 1223 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) { 1224 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n", 1225 (int)dtohs(mHeader->header.headerSize), 1226 (int)dtohl(mHeader->header.size), (int)size); 1227 mError = BAD_TYPE; 1228 restart(); 1229 return mError; 1230 } 1231 mDataEnd = ((const uint8_t*)mHeader) + mSize; 1232 1233 mStrings.uninit(); 1234 mRootNode = NULL; 1235 mResIds = NULL; 1236 mNumResIds = 0; 1237 1238 // First look for a couple interesting chunks: the string block 1239 // and first XML node. 1240 const ResChunk_header* chunk = 1241 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize)); 1242 const ResChunk_header* lastChunk = chunk; 1243 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) && 1244 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) { 1245 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML"); 1246 if (err != NO_ERROR) { 1247 mError = err; 1248 goto done; 1249 } 1250 const uint16_t type = dtohs(chunk->type); 1251 const size_t size = dtohl(chunk->size); 1252 XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n", 1253 (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size)); 1254 if (type == RES_STRING_POOL_TYPE) { 1255 mStrings.setTo(chunk, size); 1256 } else if (type == RES_XML_RESOURCE_MAP_TYPE) { 1257 mResIds = (const uint32_t*) 1258 (((const uint8_t*)chunk)+dtohs(chunk->headerSize)); 1259 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t); 1260 } else if (type >= RES_XML_FIRST_CHUNK_TYPE 1261 && type <= RES_XML_LAST_CHUNK_TYPE) { 1262 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) { 1263 mError = BAD_TYPE; 1264 goto done; 1265 } 1266 mCurNode = (const ResXMLTree_node*)lastChunk; 1267 if (nextNode() == BAD_DOCUMENT) { 1268 mError = BAD_TYPE; 1269 goto done; 1270 } 1271 mRootNode = mCurNode; 1272 mRootExt = mCurExt; 1273 mRootCode = mEventCode; 1274 break; 1275 } else { 1276 XML_NOISY(printf("Skipping unknown chunk!\n")); 1277 } 1278 lastChunk = chunk; 1279 chunk = (const ResChunk_header*) 1280 (((const uint8_t*)chunk) + size); 1281 } 1282 1283 if (mRootNode == NULL) { 1284 ALOGW("Bad XML block: no root element node found\n"); 1285 mError = BAD_TYPE; 1286 goto done; 1287 } 1288 1289 mError = mStrings.getError(); 1290 1291 done: 1292 restart(); 1293 return mError; 1294 } 1295 1296 status_t ResXMLTree::getError() const 1297 { 1298 return mError; 1299 } 1300 1301 void ResXMLTree::uninit() 1302 { 1303 mError = NO_INIT; 1304 mStrings.uninit(); 1305 if (mOwnedData) { 1306 free(mOwnedData); 1307 mOwnedData = NULL; 1308 } 1309 restart(); 1310 } 1311 1312 status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const 1313 { 1314 const uint16_t eventCode = dtohs(node->header.type); 1315 1316 status_t err = validate_chunk( 1317 &node->header, sizeof(ResXMLTree_node), 1318 mDataEnd, "ResXMLTree_node"); 1319 1320 if (err >= NO_ERROR) { 1321 // Only perform additional validation on START nodes 1322 if (eventCode != RES_XML_START_ELEMENT_TYPE) { 1323 return NO_ERROR; 1324 } 1325 1326 const uint16_t headerSize = dtohs(node->header.headerSize); 1327 const uint32_t size = dtohl(node->header.size); 1328 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*) 1329 (((const uint8_t*)node) + headerSize); 1330 // check for sensical values pulled out of the stream so far... 1331 if ((size >= headerSize + sizeof(ResXMLTree_attrExt)) 1332 && ((void*)attrExt > (void*)node)) { 1333 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize)) 1334 * dtohs(attrExt->attributeCount); 1335 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) { 1336 return NO_ERROR; 1337 } 1338 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1339 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize), 1340 (unsigned int)(size-headerSize)); 1341 } 1342 else { 1343 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n", 1344 (unsigned int)headerSize, (unsigned int)size); 1345 } 1346 return BAD_TYPE; 1347 } 1348 1349 return err; 1350 1351 #if 0 1352 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE; 1353 1354 const uint16_t headerSize = dtohs(node->header.headerSize); 1355 const uint32_t size = dtohl(node->header.size); 1356 1357 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) { 1358 if (size >= headerSize) { 1359 if (((const uint8_t*)node) <= (mDataEnd-size)) { 1360 if (!isStart) { 1361 return NO_ERROR; 1362 } 1363 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount)) 1364 <= (size-headerSize)) { 1365 return NO_ERROR; 1366 } 1367 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1368 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount), 1369 (int)(size-headerSize)); 1370 return BAD_TYPE; 1371 } 1372 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n", 1373 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize); 1374 return BAD_TYPE; 1375 } 1376 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n", 1377 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1378 (int)headerSize, (int)size); 1379 return BAD_TYPE; 1380 } 1381 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n", 1382 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1383 (int)headerSize); 1384 return BAD_TYPE; 1385 #endif 1386 } 1387 1388 // -------------------------------------------------------------------- 1389 // -------------------------------------------------------------------- 1390 // -------------------------------------------------------------------- 1391 1392 void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) { 1393 const size_t size = dtohl(o.size); 1394 if (size >= sizeof(ResTable_config)) { 1395 *this = o; 1396 } else { 1397 memcpy(this, &o, size); 1398 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size); 1399 } 1400 } 1401 1402 void ResTable_config::copyFromDtoH(const ResTable_config& o) { 1403 copyFromDeviceNoSwap(o); 1404 size = sizeof(ResTable_config); 1405 mcc = dtohs(mcc); 1406 mnc = dtohs(mnc); 1407 density = dtohs(density); 1408 screenWidth = dtohs(screenWidth); 1409 screenHeight = dtohs(screenHeight); 1410 sdkVersion = dtohs(sdkVersion); 1411 minorVersion = dtohs(minorVersion); 1412 smallestScreenWidthDp = dtohs(smallestScreenWidthDp); 1413 screenWidthDp = dtohs(screenWidthDp); 1414 screenHeightDp = dtohs(screenHeightDp); 1415 } 1416 1417 void ResTable_config::swapHtoD() { 1418 size = htodl(size); 1419 mcc = htods(mcc); 1420 mnc = htods(mnc); 1421 density = htods(density); 1422 screenWidth = htods(screenWidth); 1423 screenHeight = htods(screenHeight); 1424 sdkVersion = htods(sdkVersion); 1425 minorVersion = htods(minorVersion); 1426 smallestScreenWidthDp = htods(smallestScreenWidthDp); 1427 screenWidthDp = htods(screenWidthDp); 1428 screenHeightDp = htods(screenHeightDp); 1429 } 1430 1431 int ResTable_config::compare(const ResTable_config& o) const { 1432 int32_t diff = (int32_t)(imsi - o.imsi); 1433 if (diff != 0) return diff; 1434 diff = (int32_t)(locale - o.locale); 1435 if (diff != 0) return diff; 1436 diff = (int32_t)(screenType - o.screenType); 1437 if (diff != 0) return diff; 1438 diff = (int32_t)(input - o.input); 1439 if (diff != 0) return diff; 1440 diff = (int32_t)(screenSize - o.screenSize); 1441 if (diff != 0) return diff; 1442 diff = (int32_t)(version - o.version); 1443 if (diff != 0) return diff; 1444 diff = (int32_t)(screenLayout - o.screenLayout); 1445 if (diff != 0) return diff; 1446 diff = (int32_t)(uiMode - o.uiMode); 1447 if (diff != 0) return diff; 1448 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp); 1449 if (diff != 0) return diff; 1450 diff = (int32_t)(screenSizeDp - o.screenSizeDp); 1451 return (int)diff; 1452 } 1453 1454 int ResTable_config::compareLogical(const ResTable_config& o) const { 1455 if (mcc != o.mcc) { 1456 return mcc < o.mcc ? -1 : 1; 1457 } 1458 if (mnc != o.mnc) { 1459 return mnc < o.mnc ? -1 : 1; 1460 } 1461 if (language[0] != o.language[0]) { 1462 return language[0] < o.language[0] ? -1 : 1; 1463 } 1464 if (language[1] != o.language[1]) { 1465 return language[1] < o.language[1] ? -1 : 1; 1466 } 1467 if (country[0] != o.country[0]) { 1468 return country[0] < o.country[0] ? -1 : 1; 1469 } 1470 if (country[1] != o.country[1]) { 1471 return country[1] < o.country[1] ? -1 : 1; 1472 } 1473 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1474 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1; 1475 } 1476 if (screenWidthDp != o.screenWidthDp) { 1477 return screenWidthDp < o.screenWidthDp ? -1 : 1; 1478 } 1479 if (screenHeightDp != o.screenHeightDp) { 1480 return screenHeightDp < o.screenHeightDp ? -1 : 1; 1481 } 1482 if (screenWidth != o.screenWidth) { 1483 return screenWidth < o.screenWidth ? -1 : 1; 1484 } 1485 if (screenHeight != o.screenHeight) { 1486 return screenHeight < o.screenHeight ? -1 : 1; 1487 } 1488 if (density != o.density) { 1489 return density < o.density ? -1 : 1; 1490 } 1491 if (orientation != o.orientation) { 1492 return orientation < o.orientation ? -1 : 1; 1493 } 1494 if (touchscreen != o.touchscreen) { 1495 return touchscreen < o.touchscreen ? -1 : 1; 1496 } 1497 if (input != o.input) { 1498 return input < o.input ? -1 : 1; 1499 } 1500 if (screenLayout != o.screenLayout) { 1501 return screenLayout < o.screenLayout ? -1 : 1; 1502 } 1503 if (uiMode != o.uiMode) { 1504 return uiMode < o.uiMode ? -1 : 1; 1505 } 1506 if (version != o.version) { 1507 return version < o.version ? -1 : 1; 1508 } 1509 return 0; 1510 } 1511 1512 int ResTable_config::diff(const ResTable_config& o) const { 1513 int diffs = 0; 1514 if (mcc != o.mcc) diffs |= CONFIG_MCC; 1515 if (mnc != o.mnc) diffs |= CONFIG_MNC; 1516 if (locale != o.locale) diffs |= CONFIG_LOCALE; 1517 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION; 1518 if (density != o.density) diffs |= CONFIG_DENSITY; 1519 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN; 1520 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0) 1521 diffs |= CONFIG_KEYBOARD_HIDDEN; 1522 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD; 1523 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION; 1524 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE; 1525 if (version != o.version) diffs |= CONFIG_VERSION; 1526 if (screenLayout != o.screenLayout) diffs |= CONFIG_SCREEN_LAYOUT; 1527 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE; 1528 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE; 1529 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE; 1530 return diffs; 1531 } 1532 1533 bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const { 1534 // The order of the following tests defines the importance of one 1535 // configuration parameter over another. Those tests first are more 1536 // important, trumping any values in those following them. 1537 if (imsi || o.imsi) { 1538 if (mcc != o.mcc) { 1539 if (!mcc) return false; 1540 if (!o.mcc) return true; 1541 } 1542 1543 if (mnc != o.mnc) { 1544 if (!mnc) return false; 1545 if (!o.mnc) return true; 1546 } 1547 } 1548 1549 if (locale || o.locale) { 1550 if (language[0] != o.language[0]) { 1551 if (!language[0]) return false; 1552 if (!o.language[0]) return true; 1553 } 1554 1555 if (country[0] != o.country[0]) { 1556 if (!country[0]) return false; 1557 if (!o.country[0]) return true; 1558 } 1559 } 1560 1561 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 1562 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1563 if (!smallestScreenWidthDp) return false; 1564 if (!o.smallestScreenWidthDp) return true; 1565 } 1566 } 1567 1568 if (screenSizeDp || o.screenSizeDp) { 1569 if (screenWidthDp != o.screenWidthDp) { 1570 if (!screenWidthDp) return false; 1571 if (!o.screenWidthDp) return true; 1572 } 1573 1574 if (screenHeightDp != o.screenHeightDp) { 1575 if (!screenHeightDp) return false; 1576 if (!o.screenHeightDp) return true; 1577 } 1578 } 1579 1580 if (screenLayout || o.screenLayout) { 1581 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) { 1582 if (!(screenLayout & MASK_SCREENSIZE)) return false; 1583 if (!(o.screenLayout & MASK_SCREENSIZE)) return true; 1584 } 1585 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) { 1586 if (!(screenLayout & MASK_SCREENLONG)) return false; 1587 if (!(o.screenLayout & MASK_SCREENLONG)) return true; 1588 } 1589 } 1590 1591 if (orientation != o.orientation) { 1592 if (!orientation) return false; 1593 if (!o.orientation) return true; 1594 } 1595 1596 if (uiMode || o.uiMode) { 1597 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) { 1598 if (!(uiMode & MASK_UI_MODE_TYPE)) return false; 1599 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true; 1600 } 1601 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) { 1602 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false; 1603 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true; 1604 } 1605 } 1606 1607 // density is never 'more specific' 1608 // as the default just equals 160 1609 1610 if (touchscreen != o.touchscreen) { 1611 if (!touchscreen) return false; 1612 if (!o.touchscreen) return true; 1613 } 1614 1615 if (input || o.input) { 1616 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) { 1617 if (!(inputFlags & MASK_KEYSHIDDEN)) return false; 1618 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true; 1619 } 1620 1621 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) { 1622 if (!(inputFlags & MASK_NAVHIDDEN)) return false; 1623 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true; 1624 } 1625 1626 if (keyboard != o.keyboard) { 1627 if (!keyboard) return false; 1628 if (!o.keyboard) return true; 1629 } 1630 1631 if (navigation != o.navigation) { 1632 if (!navigation) return false; 1633 if (!o.navigation) return true; 1634 } 1635 } 1636 1637 if (screenSize || o.screenSize) { 1638 if (screenWidth != o.screenWidth) { 1639 if (!screenWidth) return false; 1640 if (!o.screenWidth) return true; 1641 } 1642 1643 if (screenHeight != o.screenHeight) { 1644 if (!screenHeight) return false; 1645 if (!o.screenHeight) return true; 1646 } 1647 } 1648 1649 if (version || o.version) { 1650 if (sdkVersion != o.sdkVersion) { 1651 if (!sdkVersion) return false; 1652 if (!o.sdkVersion) return true; 1653 } 1654 1655 if (minorVersion != o.minorVersion) { 1656 if (!minorVersion) return false; 1657 if (!o.minorVersion) return true; 1658 } 1659 } 1660 return false; 1661 } 1662 1663 bool ResTable_config::isBetterThan(const ResTable_config& o, 1664 const ResTable_config* requested) const { 1665 if (requested) { 1666 if (imsi || o.imsi) { 1667 if ((mcc != o.mcc) && requested->mcc) { 1668 return (mcc); 1669 } 1670 1671 if ((mnc != o.mnc) && requested->mnc) { 1672 return (mnc); 1673 } 1674 } 1675 1676 if (locale || o.locale) { 1677 if ((language[0] != o.language[0]) && requested->language[0]) { 1678 return (language[0]); 1679 } 1680 1681 if ((country[0] != o.country[0]) && requested->country[0]) { 1682 return (country[0]); 1683 } 1684 } 1685 1686 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 1687 // The configuration closest to the actual size is best. 1688 // We assume that larger configs have already been filtered 1689 // out at this point. That means we just want the largest one. 1690 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1691 return smallestScreenWidthDp > o.smallestScreenWidthDp; 1692 } 1693 } 1694 1695 if (screenSizeDp || o.screenSizeDp) { 1696 // "Better" is based on the sum of the difference between both 1697 // width and height from the requested dimensions. We are 1698 // assuming the invalid configs (with smaller dimens) have 1699 // already been filtered. Note that if a particular dimension 1700 // is unspecified, we will end up with a large value (the 1701 // difference between 0 and the requested dimension), which is 1702 // good since we will prefer a config that has specified a 1703 // dimension value. 1704 int myDelta = 0, otherDelta = 0; 1705 if (requested->screenWidthDp) { 1706 myDelta += requested->screenWidthDp - screenWidthDp; 1707 otherDelta += requested->screenWidthDp - o.screenWidthDp; 1708 } 1709 if (requested->screenHeightDp) { 1710 myDelta += requested->screenHeightDp - screenHeightDp; 1711 otherDelta += requested->screenHeightDp - o.screenHeightDp; 1712 } 1713 //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d", 1714 // screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp, 1715 // requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta); 1716 if (myDelta != otherDelta) { 1717 return myDelta < otherDelta; 1718 } 1719 } 1720 1721 if (screenLayout || o.screenLayout) { 1722 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0 1723 && (requested->screenLayout & MASK_SCREENSIZE)) { 1724 // A little backwards compatibility here: undefined is 1725 // considered equivalent to normal. But only if the 1726 // requested size is at least normal; otherwise, small 1727 // is better than the default. 1728 int mySL = (screenLayout & MASK_SCREENSIZE); 1729 int oSL = (o.screenLayout & MASK_SCREENSIZE); 1730 int fixedMySL = mySL; 1731 int fixedOSL = oSL; 1732 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) { 1733 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL; 1734 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL; 1735 } 1736 // For screen size, the best match is the one that is 1737 // closest to the requested screen size, but not over 1738 // (the not over part is dealt with in match() below). 1739 if (fixedMySL == fixedOSL) { 1740 // If the two are the same, but 'this' is actually 1741 // undefined, then the other is really a better match. 1742 if (mySL == 0) return false; 1743 return true; 1744 } 1745 if (fixedMySL != fixedOSL) { 1746 return fixedMySL > fixedOSL; 1747 } 1748 } 1749 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0 1750 && (requested->screenLayout & MASK_SCREENLONG)) { 1751 return (screenLayout & MASK_SCREENLONG); 1752 } 1753 } 1754 1755 if ((orientation != o.orientation) && requested->orientation) { 1756 return (orientation); 1757 } 1758 1759 if (uiMode || o.uiMode) { 1760 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0 1761 && (requested->uiMode & MASK_UI_MODE_TYPE)) { 1762 return (uiMode & MASK_UI_MODE_TYPE); 1763 } 1764 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0 1765 && (requested->uiMode & MASK_UI_MODE_NIGHT)) { 1766 return (uiMode & MASK_UI_MODE_NIGHT); 1767 } 1768 } 1769 1770 if (screenType || o.screenType) { 1771 if (density != o.density) { 1772 // density is tough. Any density is potentially useful 1773 // because the system will scale it. Scaling down 1774 // is generally better than scaling up. 1775 // Default density counts as 160dpi (the system default) 1776 // TODO - remove 160 constants 1777 int h = (density?density:160); 1778 int l = (o.density?o.density:160); 1779 bool bImBigger = true; 1780 if (l > h) { 1781 int t = h; 1782 h = l; 1783 l = t; 1784 bImBigger = false; 1785 } 1786 1787 int reqValue = (requested->density?requested->density:160); 1788 if (reqValue >= h) { 1789 // requested value higher than both l and h, give h 1790 return bImBigger; 1791 } 1792 if (l >= reqValue) { 1793 // requested value lower than both l and h, give l 1794 return !bImBigger; 1795 } 1796 // saying that scaling down is 2x better than up 1797 if (((2 * l) - reqValue) * h > reqValue * reqValue) { 1798 return !bImBigger; 1799 } else { 1800 return bImBigger; 1801 } 1802 } 1803 1804 if ((touchscreen != o.touchscreen) && requested->touchscreen) { 1805 return (touchscreen); 1806 } 1807 } 1808 1809 if (input || o.input) { 1810 const int keysHidden = inputFlags & MASK_KEYSHIDDEN; 1811 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN; 1812 if (keysHidden != oKeysHidden) { 1813 const int reqKeysHidden = 1814 requested->inputFlags & MASK_KEYSHIDDEN; 1815 if (reqKeysHidden) { 1816 1817 if (!keysHidden) return false; 1818 if (!oKeysHidden) return true; 1819 // For compatibility, we count KEYSHIDDEN_NO as being 1820 // the same as KEYSHIDDEN_SOFT. Here we disambiguate 1821 // these by making an exact match more specific. 1822 if (reqKeysHidden == keysHidden) return true; 1823 if (reqKeysHidden == oKeysHidden) return false; 1824 } 1825 } 1826 1827 const int navHidden = inputFlags & MASK_NAVHIDDEN; 1828 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN; 1829 if (navHidden != oNavHidden) { 1830 const int reqNavHidden = 1831 requested->inputFlags & MASK_NAVHIDDEN; 1832 if (reqNavHidden) { 1833 1834 if (!navHidden) return false; 1835 if (!oNavHidden) return true; 1836 } 1837 } 1838 1839 if ((keyboard != o.keyboard) && requested->keyboard) { 1840 return (keyboard); 1841 } 1842 1843 if ((navigation != o.navigation) && requested->navigation) { 1844 return (navigation); 1845 } 1846 } 1847 1848 if (screenSize || o.screenSize) { 1849 // "Better" is based on the sum of the difference between both 1850 // width and height from the requested dimensions. We are 1851 // assuming the invalid configs (with smaller sizes) have 1852 // already been filtered. Note that if a particular dimension 1853 // is unspecified, we will end up with a large value (the 1854 // difference between 0 and the requested dimension), which is 1855 // good since we will prefer a config that has specified a 1856 // size value. 1857 int myDelta = 0, otherDelta = 0; 1858 if (requested->screenWidth) { 1859 myDelta += requested->screenWidth - screenWidth; 1860 otherDelta += requested->screenWidth - o.screenWidth; 1861 } 1862 if (requested->screenHeight) { 1863 myDelta += requested->screenHeight - screenHeight; 1864 otherDelta += requested->screenHeight - o.screenHeight; 1865 } 1866 if (myDelta != otherDelta) { 1867 return myDelta < otherDelta; 1868 } 1869 } 1870 1871 if (version || o.version) { 1872 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) { 1873 return (sdkVersion > o.sdkVersion); 1874 } 1875 1876 if ((minorVersion != o.minorVersion) && 1877 requested->minorVersion) { 1878 return (minorVersion); 1879 } 1880 } 1881 1882 return false; 1883 } 1884 return isMoreSpecificThan(o); 1885 } 1886 1887 bool ResTable_config::match(const ResTable_config& settings) const { 1888 if (imsi != 0) { 1889 if (mcc != 0 && mcc != settings.mcc) { 1890 return false; 1891 } 1892 if (mnc != 0 && mnc != settings.mnc) { 1893 return false; 1894 } 1895 } 1896 if (locale != 0) { 1897 if (language[0] != 0 1898 && (language[0] != settings.language[0] 1899 || language[1] != settings.language[1])) { 1900 return false; 1901 } 1902 if (country[0] != 0 1903 && (country[0] != settings.country[0] 1904 || country[1] != settings.country[1])) { 1905 return false; 1906 } 1907 } 1908 if (screenConfig != 0) { 1909 const int screenSize = screenLayout&MASK_SCREENSIZE; 1910 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE; 1911 // Any screen sizes for larger screens than the setting do not 1912 // match. 1913 if (screenSize != 0 && screenSize > setScreenSize) { 1914 return false; 1915 } 1916 1917 const int screenLong = screenLayout&MASK_SCREENLONG; 1918 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG; 1919 if (screenLong != 0 && screenLong != setScreenLong) { 1920 return false; 1921 } 1922 1923 const int uiModeType = uiMode&MASK_UI_MODE_TYPE; 1924 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE; 1925 if (uiModeType != 0 && uiModeType != setUiModeType) { 1926 return false; 1927 } 1928 1929 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT; 1930 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT; 1931 if (uiModeNight != 0 && uiModeNight != setUiModeNight) { 1932 return false; 1933 } 1934 1935 if (smallestScreenWidthDp != 0 1936 && smallestScreenWidthDp > settings.smallestScreenWidthDp) { 1937 return false; 1938 } 1939 } 1940 if (screenSizeDp != 0) { 1941 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) { 1942 //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp); 1943 return false; 1944 } 1945 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) { 1946 //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp); 1947 return false; 1948 } 1949 } 1950 if (screenType != 0) { 1951 if (orientation != 0 && orientation != settings.orientation) { 1952 return false; 1953 } 1954 // density always matches - we can scale it. See isBetterThan 1955 if (touchscreen != 0 && touchscreen != settings.touchscreen) { 1956 return false; 1957 } 1958 } 1959 if (input != 0) { 1960 const int keysHidden = inputFlags&MASK_KEYSHIDDEN; 1961 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN; 1962 if (keysHidden != 0 && keysHidden != setKeysHidden) { 1963 // For compatibility, we count a request for KEYSHIDDEN_NO as also 1964 // matching the more recent KEYSHIDDEN_SOFT. Basically 1965 // KEYSHIDDEN_NO means there is some kind of keyboard available. 1966 //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden); 1967 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) { 1968 //ALOGI("No match!"); 1969 return false; 1970 } 1971 } 1972 const int navHidden = inputFlags&MASK_NAVHIDDEN; 1973 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN; 1974 if (navHidden != 0 && navHidden != setNavHidden) { 1975 return false; 1976 } 1977 if (keyboard != 0 && keyboard != settings.keyboard) { 1978 return false; 1979 } 1980 if (navigation != 0 && navigation != settings.navigation) { 1981 return false; 1982 } 1983 } 1984 if (screenSize != 0) { 1985 if (screenWidth != 0 && screenWidth > settings.screenWidth) { 1986 return false; 1987 } 1988 if (screenHeight != 0 && screenHeight > settings.screenHeight) { 1989 return false; 1990 } 1991 } 1992 if (version != 0) { 1993 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) { 1994 return false; 1995 } 1996 if (minorVersion != 0 && minorVersion != settings.minorVersion) { 1997 return false; 1998 } 1999 } 2000 return true; 2001 } 2002 2003 void ResTable_config::getLocale(char str[6]) const { 2004 memset(str, 0, 6); 2005 if (language[0]) { 2006 str[0] = language[0]; 2007 str[1] = language[1]; 2008 if (country[0]) { 2009 str[2] = '_'; 2010 str[3] = country[0]; 2011 str[4] = country[1]; 2012 } 2013 } 2014 } 2015 2016 String8 ResTable_config::toString() const { 2017 String8 res; 2018 2019 if (mcc != 0) { 2020 if (res.size() > 0) res.append("-"); 2021 res.appendFormat("%dmcc", dtohs(mcc)); 2022 } 2023 if (mnc != 0) { 2024 if (res.size() > 0) res.append("-"); 2025 res.appendFormat("%dmnc", dtohs(mnc)); 2026 } 2027 if (language[0] != 0) { 2028 if (res.size() > 0) res.append("-"); 2029 res.append(language, 2); 2030 } 2031 if (country[0] != 0) { 2032 if (res.size() > 0) res.append("-"); 2033 res.append(country, 2); 2034 } 2035 if (smallestScreenWidthDp != 0) { 2036 if (res.size() > 0) res.append("-"); 2037 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp)); 2038 } 2039 if (screenWidthDp != 0) { 2040 if (res.size() > 0) res.append("-"); 2041 res.appendFormat("w%ddp", dtohs(screenWidthDp)); 2042 } 2043 if (screenHeightDp != 0) { 2044 if (res.size() > 0) res.append("-"); 2045 res.appendFormat("h%ddp", dtohs(screenHeightDp)); 2046 } 2047 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) { 2048 if (res.size() > 0) res.append("-"); 2049 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) { 2050 case ResTable_config::SCREENSIZE_SMALL: 2051 res.append("small"); 2052 break; 2053 case ResTable_config::SCREENSIZE_NORMAL: 2054 res.append("normal"); 2055 break; 2056 case ResTable_config::SCREENSIZE_LARGE: 2057 res.append("large"); 2058 break; 2059 case ResTable_config::SCREENSIZE_XLARGE: 2060 res.append("xlarge"); 2061 break; 2062 default: 2063 res.appendFormat("screenLayoutSize=%d", 2064 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE)); 2065 break; 2066 } 2067 } 2068 if ((screenLayout&MASK_SCREENLONG) != 0) { 2069 if (res.size() > 0) res.append("-"); 2070 switch (screenLayout&ResTable_config::MASK_SCREENLONG) { 2071 case ResTable_config::SCREENLONG_NO: 2072 res.append("notlong"); 2073 break; 2074 case ResTable_config::SCREENLONG_YES: 2075 res.append("long"); 2076 break; 2077 default: 2078 res.appendFormat("screenLayoutLong=%d", 2079 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG)); 2080 break; 2081 } 2082 } 2083 if (orientation != ORIENTATION_ANY) { 2084 if (res.size() > 0) res.append("-"); 2085 switch (orientation) { 2086 case ResTable_config::ORIENTATION_PORT: 2087 res.append("port"); 2088 break; 2089 case ResTable_config::ORIENTATION_LAND: 2090 res.append("land"); 2091 break; 2092 case ResTable_config::ORIENTATION_SQUARE: 2093 res.append("square"); 2094 break; 2095 default: 2096 res.appendFormat("orientation=%d", dtohs(orientation)); 2097 break; 2098 } 2099 } 2100 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) { 2101 if (res.size() > 0) res.append("-"); 2102 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) { 2103 case ResTable_config::UI_MODE_TYPE_DESK: 2104 res.append("desk"); 2105 break; 2106 case ResTable_config::UI_MODE_TYPE_CAR: 2107 res.append("car"); 2108 break; 2109 case ResTable_config::UI_MODE_TYPE_TELEVISION: 2110 res.append("television"); 2111 break; 2112 case ResTable_config::UI_MODE_TYPE_APPLIANCE: 2113 res.append("appliance"); 2114 break; 2115 default: 2116 res.appendFormat("uiModeType=%d", 2117 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE)); 2118 break; 2119 } 2120 } 2121 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) { 2122 if (res.size() > 0) res.append("-"); 2123 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) { 2124 case ResTable_config::UI_MODE_NIGHT_NO: 2125 res.append("notnight"); 2126 break; 2127 case ResTable_config::UI_MODE_NIGHT_YES: 2128 res.append("night"); 2129 break; 2130 default: 2131 res.appendFormat("uiModeNight=%d", 2132 dtohs(uiMode&MASK_UI_MODE_NIGHT)); 2133 break; 2134 } 2135 } 2136 if (density != DENSITY_DEFAULT) { 2137 if (res.size() > 0) res.append("-"); 2138 switch (density) { 2139 case ResTable_config::DENSITY_LOW: 2140 res.append("ldpi"); 2141 break; 2142 case ResTable_config::DENSITY_MEDIUM: 2143 res.append("mdpi"); 2144 break; 2145 case ResTable_config::DENSITY_TV: 2146 res.append("tvdpi"); 2147 break; 2148 case ResTable_config::DENSITY_HIGH: 2149 res.append("hdpi"); 2150 break; 2151 case ResTable_config::DENSITY_XHIGH: 2152 res.append("xhdpi"); 2153 break; 2154 case ResTable_config::DENSITY_XXHIGH: 2155 res.append("xxhdpi"); 2156 break; 2157 case ResTable_config::DENSITY_NONE: 2158 res.append("nodpi"); 2159 break; 2160 default: 2161 res.appendFormat("%ddpi", dtohs(density)); 2162 break; 2163 } 2164 } 2165 if (touchscreen != TOUCHSCREEN_ANY) { 2166 if (res.size() > 0) res.append("-"); 2167 switch (touchscreen) { 2168 case ResTable_config::TOUCHSCREEN_NOTOUCH: 2169 res.append("notouch"); 2170 break; 2171 case ResTable_config::TOUCHSCREEN_FINGER: 2172 res.append("finger"); 2173 break; 2174 case ResTable_config::TOUCHSCREEN_STYLUS: 2175 res.append("stylus"); 2176 break; 2177 default: 2178 res.appendFormat("touchscreen=%d", dtohs(touchscreen)); 2179 break; 2180 } 2181 } 2182 if (keyboard != KEYBOARD_ANY) { 2183 if (res.size() > 0) res.append("-"); 2184 switch (keyboard) { 2185 case ResTable_config::KEYBOARD_NOKEYS: 2186 res.append("nokeys"); 2187 break; 2188 case ResTable_config::KEYBOARD_QWERTY: 2189 res.append("qwerty"); 2190 break; 2191 case ResTable_config::KEYBOARD_12KEY: 2192 res.append("12key"); 2193 break; 2194 default: 2195 res.appendFormat("keyboard=%d", dtohs(keyboard)); 2196 break; 2197 } 2198 } 2199 if ((inputFlags&MASK_KEYSHIDDEN) != 0) { 2200 if (res.size() > 0) res.append("-"); 2201 switch (inputFlags&MASK_KEYSHIDDEN) { 2202 case ResTable_config::KEYSHIDDEN_NO: 2203 res.append("keysexposed"); 2204 break; 2205 case ResTable_config::KEYSHIDDEN_YES: 2206 res.append("keyshidden"); 2207 break; 2208 case ResTable_config::KEYSHIDDEN_SOFT: 2209 res.append("keyssoft"); 2210 break; 2211 } 2212 } 2213 if (navigation != NAVIGATION_ANY) { 2214 if (res.size() > 0) res.append("-"); 2215 switch (navigation) { 2216 case ResTable_config::NAVIGATION_NONAV: 2217 res.append("nonav"); 2218 break; 2219 case ResTable_config::NAVIGATION_DPAD: 2220 res.append("dpad"); 2221 break; 2222 case ResTable_config::NAVIGATION_TRACKBALL: 2223 res.append("trackball"); 2224 break; 2225 case ResTable_config::NAVIGATION_WHEEL: 2226 res.append("wheel"); 2227 break; 2228 default: 2229 res.appendFormat("navigation=%d", dtohs(navigation)); 2230 break; 2231 } 2232 } 2233 if ((inputFlags&MASK_NAVHIDDEN) != 0) { 2234 if (res.size() > 0) res.append("-"); 2235 switch (inputFlags&MASK_NAVHIDDEN) { 2236 case ResTable_config::NAVHIDDEN_NO: 2237 res.append("navsexposed"); 2238 break; 2239 case ResTable_config::NAVHIDDEN_YES: 2240 res.append("navhidden"); 2241 break; 2242 default: 2243 res.appendFormat("inputFlagsNavHidden=%d", 2244 dtohs(inputFlags&MASK_NAVHIDDEN)); 2245 break; 2246 } 2247 } 2248 if (screenSize != 0) { 2249 if (res.size() > 0) res.append("-"); 2250 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight)); 2251 } 2252 if (version != 0) { 2253 if (res.size() > 0) res.append("-"); 2254 res.appendFormat("v%d", dtohs(sdkVersion)); 2255 if (minorVersion != 0) { 2256 res.appendFormat(".%d", dtohs(minorVersion)); 2257 } 2258 } 2259 2260 return res; 2261 } 2262 2263 // -------------------------------------------------------------------- 2264 // -------------------------------------------------------------------- 2265 // -------------------------------------------------------------------- 2266 2267 struct ResTable::Header 2268 { 2269 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL), 2270 resourceIDMap(NULL), resourceIDMapSize(0) { } 2271 2272 ~Header() 2273 { 2274 free(resourceIDMap); 2275 } 2276 2277 ResTable* const owner; 2278 void* ownedData; 2279 const ResTable_header* header; 2280 size_t size; 2281 const uint8_t* dataEnd; 2282 size_t index; 2283 void* cookie; 2284 2285 ResStringPool values; 2286 uint32_t* resourceIDMap; 2287 size_t resourceIDMapSize; 2288 }; 2289 2290 struct ResTable::Type 2291 { 2292 Type(const Header* _header, const Package* _package, size_t count) 2293 : header(_header), package(_package), entryCount(count), 2294 typeSpec(NULL), typeSpecFlags(NULL) { } 2295 const Header* const header; 2296 const Package* const package; 2297 const size_t entryCount; 2298 const ResTable_typeSpec* typeSpec; 2299 const uint32_t* typeSpecFlags; 2300 Vector<const ResTable_type*> configs; 2301 }; 2302 2303 struct ResTable::Package 2304 { 2305 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package) 2306 : owner(_owner), header(_header), package(_package) { } 2307 ~Package() 2308 { 2309 size_t i = types.size(); 2310 while (i > 0) { 2311 i--; 2312 delete types[i]; 2313 } 2314 } 2315 2316 ResTable* const owner; 2317 const Header* const header; 2318 const ResTable_package* const package; 2319 Vector<Type*> types; 2320 2321 ResStringPool typeStrings; 2322 ResStringPool keyStrings; 2323 2324 const Type* getType(size_t idx) const { 2325 return idx < types.size() ? types[idx] : NULL; 2326 } 2327 }; 2328 2329 // A group of objects describing a particular resource package. 2330 // The first in 'package' is always the root object (from the resource 2331 // table that defined the package); the ones after are skins on top of it. 2332 struct ResTable::PackageGroup 2333 { 2334 PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id) 2335 : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { } 2336 ~PackageGroup() { 2337 clearBagCache(); 2338 const size_t N = packages.size(); 2339 for (size_t i=0; i<N; i++) { 2340 Package* pkg = packages[i]; 2341 if (pkg->owner == owner) { 2342 delete pkg; 2343 } 2344 } 2345 } 2346 2347 void clearBagCache() { 2348 if (bags) { 2349 TABLE_NOISY(printf("bags=%p\n", bags)); 2350 Package* pkg = packages[0]; 2351 TABLE_NOISY(printf("typeCount=%x\n", typeCount)); 2352 for (size_t i=0; i<typeCount; i++) { 2353 TABLE_NOISY(printf("type=%d\n", i)); 2354 const Type* type = pkg->getType(i); 2355 if (type != NULL) { 2356 bag_set** typeBags = bags[i]; 2357 TABLE_NOISY(printf("typeBags=%p\n", typeBags)); 2358 if (typeBags) { 2359 TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount)); 2360 const size_t N = type->entryCount; 2361 for (size_t j=0; j<N; j++) { 2362 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF) 2363 free(typeBags[j]); 2364 } 2365 free(typeBags); 2366 } 2367 } 2368 } 2369 free(bags); 2370 bags = NULL; 2371 } 2372 } 2373 2374 ResTable* const owner; 2375 String16 const name; 2376 uint32_t const id; 2377 Vector<Package*> packages; 2378 2379 // This is for finding typeStrings and other common package stuff. 2380 Package* basePackage; 2381 2382 // For quick access. 2383 size_t typeCount; 2384 2385 // Computed attribute bags, first indexed by the type and second 2386 // by the entry in that type. 2387 bag_set*** bags; 2388 }; 2389 2390 struct ResTable::bag_set 2391 { 2392 size_t numAttrs; // number in array 2393 size_t availAttrs; // total space in array 2394 uint32_t typeSpecFlags; 2395 // Followed by 'numAttr' bag_entry structures. 2396 }; 2397 2398 ResTable::Theme::Theme(const ResTable& table) 2399 : mTable(table) 2400 { 2401 memset(mPackages, 0, sizeof(mPackages)); 2402 } 2403 2404 ResTable::Theme::~Theme() 2405 { 2406 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 2407 package_info* pi = mPackages[i]; 2408 if (pi != NULL) { 2409 free_package(pi); 2410 } 2411 } 2412 } 2413 2414 void ResTable::Theme::free_package(package_info* pi) 2415 { 2416 for (size_t j=0; j<pi->numTypes; j++) { 2417 theme_entry* te = pi->types[j].entries; 2418 if (te != NULL) { 2419 free(te); 2420 } 2421 } 2422 free(pi); 2423 } 2424 2425 ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi) 2426 { 2427 package_info* newpi = (package_info*)malloc( 2428 sizeof(package_info) + (pi->numTypes*sizeof(type_info))); 2429 newpi->numTypes = pi->numTypes; 2430 for (size_t j=0; j<newpi->numTypes; j++) { 2431 size_t cnt = pi->types[j].numEntries; 2432 newpi->types[j].numEntries = cnt; 2433 theme_entry* te = pi->types[j].entries; 2434 if (te != NULL) { 2435 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry)); 2436 newpi->types[j].entries = newte; 2437 memcpy(newte, te, cnt*sizeof(theme_entry)); 2438 } else { 2439 newpi->types[j].entries = NULL; 2440 } 2441 } 2442 return newpi; 2443 } 2444 2445 status_t ResTable::Theme::applyStyle(uint32_t resID, bool force) 2446 { 2447 const bag_entry* bag; 2448 uint32_t bagTypeSpecFlags = 0; 2449 mTable.lock(); 2450 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags); 2451 TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N)); 2452 if (N < 0) { 2453 mTable.unlock(); 2454 return N; 2455 } 2456 2457 uint32_t curPackage = 0xffffffff; 2458 ssize_t curPackageIndex = 0; 2459 package_info* curPI = NULL; 2460 uint32_t curType = 0xffffffff; 2461 size_t numEntries = 0; 2462 theme_entry* curEntries = NULL; 2463 2464 const bag_entry* end = bag + N; 2465 while (bag < end) { 2466 const uint32_t attrRes = bag->map.name.ident; 2467 const uint32_t p = Res_GETPACKAGE(attrRes); 2468 const uint32_t t = Res_GETTYPE(attrRes); 2469 const uint32_t e = Res_GETENTRY(attrRes); 2470 2471 if (curPackage != p) { 2472 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes); 2473 if (pidx < 0) { 2474 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes); 2475 bag++; 2476 continue; 2477 } 2478 curPackage = p; 2479 curPackageIndex = pidx; 2480 curPI = mPackages[pidx]; 2481 if (curPI == NULL) { 2482 PackageGroup* const grp = mTable.mPackageGroups[pidx]; 2483 int cnt = grp->typeCount; 2484 curPI = (package_info*)malloc( 2485 sizeof(package_info) + (cnt*sizeof(type_info))); 2486 curPI->numTypes = cnt; 2487 memset(curPI->types, 0, cnt*sizeof(type_info)); 2488 mPackages[pidx] = curPI; 2489 } 2490 curType = 0xffffffff; 2491 } 2492 if (curType != t) { 2493 if (t >= curPI->numTypes) { 2494 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes); 2495 bag++; 2496 continue; 2497 } 2498 curType = t; 2499 curEntries = curPI->types[t].entries; 2500 if (curEntries == NULL) { 2501 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex]; 2502 const Type* type = grp->packages[0]->getType(t); 2503 int cnt = type != NULL ? type->entryCount : 0; 2504 curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry)); 2505 memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry)); 2506 curPI->types[t].numEntries = cnt; 2507 curPI->types[t].entries = curEntries; 2508 } 2509 numEntries = curPI->types[t].numEntries; 2510 } 2511 if (e >= numEntries) { 2512 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes); 2513 bag++; 2514 continue; 2515 } 2516 theme_entry* curEntry = curEntries + e; 2517 TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x", 2518 attrRes, bag->map.value.dataType, bag->map.value.data, 2519 curEntry->value.dataType)); 2520 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) { 2521 curEntry->stringBlock = bag->stringBlock; 2522 curEntry->typeSpecFlags |= bagTypeSpecFlags; 2523 curEntry->value = bag->map.value; 2524 } 2525 2526 bag++; 2527 } 2528 2529 mTable.unlock(); 2530 2531 //ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this); 2532 //dumpToLog(); 2533 2534 return NO_ERROR; 2535 } 2536 2537 status_t ResTable::Theme::setTo(const Theme& other) 2538 { 2539 //ALOGI("Setting theme %p from theme %p...\n", this, &other); 2540 //dumpToLog(); 2541 //other.dumpToLog(); 2542 2543 if (&mTable == &other.mTable) { 2544 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 2545 if (mPackages[i] != NULL) { 2546 free_package(mPackages[i]); 2547 } 2548 if (other.mPackages[i] != NULL) { 2549 mPackages[i] = copy_package(other.mPackages[i]); 2550 } else { 2551 mPackages[i] = NULL; 2552 } 2553 } 2554 } else { 2555 // @todo: need to really implement this, not just copy 2556 // the system package (which is still wrong because it isn't 2557 // fixing up resource references). 2558 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 2559 if (mPackages[i] != NULL) { 2560 free_package(mPackages[i]); 2561 } 2562 if (i == 0 && other.mPackages[i] != NULL) { 2563 mPackages[i] = copy_package(other.mPackages[i]); 2564 } else { 2565 mPackages[i] = NULL; 2566 } 2567 } 2568 } 2569 2570 //ALOGI("Final theme:"); 2571 //dumpToLog(); 2572 2573 return NO_ERROR; 2574 } 2575 2576 ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue, 2577 uint32_t* outTypeSpecFlags) const 2578 { 2579 int cnt = 20; 2580 2581 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0; 2582 2583 do { 2584 const ssize_t p = mTable.getResourcePackageIndex(resID); 2585 const uint32_t t = Res_GETTYPE(resID); 2586 const uint32_t e = Res_GETENTRY(resID); 2587 2588 TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this)); 2589 2590 if (p >= 0) { 2591 const package_info* const pi = mPackages[p]; 2592 TABLE_THEME(ALOGI("Found package: %p", pi)); 2593 if (pi != NULL) { 2594 TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes)); 2595 if (t < pi->numTypes) { 2596 const type_info& ti = pi->types[t]; 2597 TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries)); 2598 if (e < ti.numEntries) { 2599 const theme_entry& te = ti.entries[e]; 2600 if (outTypeSpecFlags != NULL) { 2601 *outTypeSpecFlags |= te.typeSpecFlags; 2602 } 2603 TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x", 2604 te.value.dataType, te.value.data)); 2605 const uint8_t type = te.value.dataType; 2606 if (type == Res_value::TYPE_ATTRIBUTE) { 2607 if (cnt > 0) { 2608 cnt--; 2609 resID = te.value.data; 2610 continue; 2611 } 2612 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID); 2613 return BAD_INDEX; 2614 } else if (type != Res_value::TYPE_NULL) { 2615 *outValue = te.value; 2616 return te.stringBlock; 2617 } 2618 return BAD_INDEX; 2619 } 2620 } 2621 } 2622 } 2623 break; 2624 2625 } while (true); 2626 2627 return BAD_INDEX; 2628 } 2629 2630 ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue, 2631 ssize_t blockIndex, uint32_t* outLastRef, 2632 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const 2633 { 2634 //printf("Resolving type=0x%x\n", inOutValue->dataType); 2635 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) { 2636 uint32_t newTypeSpecFlags; 2637 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags); 2638 TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n", 2639 (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data)); 2640 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags; 2641 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType); 2642 if (blockIndex < 0) { 2643 return blockIndex; 2644 } 2645 } 2646 return mTable.resolveReference(inOutValue, blockIndex, outLastRef, 2647 inoutTypeSpecFlags, inoutConfig); 2648 } 2649 2650 void ResTable::Theme::dumpToLog() const 2651 { 2652 ALOGI("Theme %p:\n", this); 2653 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 2654 package_info* pi = mPackages[i]; 2655 if (pi == NULL) continue; 2656 2657 ALOGI(" Package #0x%02x:\n", (int)(i+1)); 2658 for (size_t j=0; j<pi->numTypes; j++) { 2659 type_info& ti = pi->types[j]; 2660 if (ti.numEntries == 0) continue; 2661 2662 ALOGI(" Type #0x%02x:\n", (int)(j+1)); 2663 for (size_t k=0; k<ti.numEntries; k++) { 2664 theme_entry& te = ti.entries[k]; 2665 if (te.value.dataType == Res_value::TYPE_NULL) continue; 2666 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n", 2667 (int)Res_MAKEID(i, j, k), 2668 te.value.dataType, (int)te.value.data, (int)te.stringBlock); 2669 } 2670 } 2671 } 2672 } 2673 2674 ResTable::ResTable() 2675 : mError(NO_INIT) 2676 { 2677 memset(&mParams, 0, sizeof(mParams)); 2678 memset(mPackageMap, 0, sizeof(mPackageMap)); 2679 //ALOGI("Creating ResTable %p\n", this); 2680 } 2681 2682 ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData) 2683 : mError(NO_INIT) 2684 { 2685 memset(&mParams, 0, sizeof(mParams)); 2686 memset(mPackageMap, 0, sizeof(mPackageMap)); 2687 add(data, size, cookie, copyData); 2688 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table"); 2689 //ALOGI("Creating ResTable %p\n", this); 2690 } 2691 2692 ResTable::~ResTable() 2693 { 2694 //ALOGI("Destroying ResTable in %p\n", this); 2695 uninit(); 2696 } 2697 2698 inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const 2699 { 2700 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1; 2701 } 2702 2703 status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData, 2704 const void* idmap) 2705 { 2706 return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap)); 2707 } 2708 2709 status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap) 2710 { 2711 const void* data = asset->getBuffer(true); 2712 if (data == NULL) { 2713 ALOGW("Unable to get buffer of resource asset file"); 2714 return UNKNOWN_ERROR; 2715 } 2716 size_t size = (size_t)asset->getLength(); 2717 return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap)); 2718 } 2719 2720 status_t ResTable::add(ResTable* src) 2721 { 2722 mError = src->mError; 2723 2724 for (size_t i=0; i<src->mHeaders.size(); i++) { 2725 mHeaders.add(src->mHeaders[i]); 2726 } 2727 2728 for (size_t i=0; i<src->mPackageGroups.size(); i++) { 2729 PackageGroup* srcPg = src->mPackageGroups[i]; 2730 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id); 2731 for (size_t j=0; j<srcPg->packages.size(); j++) { 2732 pg->packages.add(srcPg->packages[j]); 2733 } 2734 pg->basePackage = srcPg->basePackage; 2735 pg->typeCount = srcPg->typeCount; 2736 mPackageGroups.add(pg); 2737 } 2738 2739 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap)); 2740 2741 return mError; 2742 } 2743 2744 status_t ResTable::add(const void* data, size_t size, void* cookie, 2745 Asset* asset, bool copyData, const Asset* idmap) 2746 { 2747 if (!data) return NO_ERROR; 2748 Header* header = new Header(this); 2749 header->index = mHeaders.size(); 2750 header->cookie = cookie; 2751 if (idmap != NULL) { 2752 const size_t idmap_size = idmap->getLength(); 2753 const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true); 2754 header->resourceIDMap = (uint32_t*)malloc(idmap_size); 2755 if (header->resourceIDMap == NULL) { 2756 delete header; 2757 return (mError = NO_MEMORY); 2758 } 2759 memcpy((void*)header->resourceIDMap, idmap_data, idmap_size); 2760 header->resourceIDMapSize = idmap_size; 2761 } 2762 mHeaders.add(header); 2763 2764 const bool notDeviceEndian = htods(0xf0) != 0xf0; 2765 2766 LOAD_TABLE_NOISY( 2767 ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d " 2768 "idmap=%p\n", data, size, cookie, asset, copyData, idmap)); 2769 2770 if (copyData || notDeviceEndian) { 2771 header->ownedData = malloc(size); 2772 if (header->ownedData == NULL) { 2773 return (mError=NO_MEMORY); 2774 } 2775 memcpy(header->ownedData, data, size); 2776 data = header->ownedData; 2777 } 2778 2779 header->header = (const ResTable_header*)data; 2780 header->size = dtohl(header->header->header.size); 2781 //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size, 2782 // dtohl(header->header->header.size), header->header->header.size); 2783 LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header)); 2784 LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256, 2785 16, 16, 0, false, printToLogFunc)); 2786 if (dtohs(header->header->header.headerSize) > header->size 2787 || header->size > size) { 2788 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n", 2789 (int)dtohs(header->header->header.headerSize), 2790 (int)header->size, (int)size); 2791 return (mError=BAD_TYPE); 2792 } 2793 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) { 2794 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n", 2795 (int)dtohs(header->header->header.headerSize), 2796 (int)header->size); 2797 return (mError=BAD_TYPE); 2798 } 2799 header->dataEnd = ((const uint8_t*)header->header) + header->size; 2800 2801 // Iterate through all chunks. 2802 size_t curPackage = 0; 2803 2804 const ResChunk_header* chunk = 2805 (const ResChunk_header*)(((const uint8_t*)header->header) 2806 + dtohs(header->header->header.headerSize)); 2807 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) && 2808 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) { 2809 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable"); 2810 if (err != NO_ERROR) { 2811 return (mError=err); 2812 } 2813 TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 2814 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 2815 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)))); 2816 const size_t csize = dtohl(chunk->size); 2817 const uint16_t ctype = dtohs(chunk->type); 2818 if (ctype == RES_STRING_POOL_TYPE) { 2819 if (header->values.getError() != NO_ERROR) { 2820 // Only use the first string chunk; ignore any others that 2821 // may appear. 2822 status_t err = header->values.setTo(chunk, csize); 2823 if (err != NO_ERROR) { 2824 return (mError=err); 2825 } 2826 } else { 2827 ALOGW("Multiple string chunks found in resource table."); 2828 } 2829 } else if (ctype == RES_TABLE_PACKAGE_TYPE) { 2830 if (curPackage >= dtohl(header->header->packageCount)) { 2831 ALOGW("More package chunks were found than the %d declared in the header.", 2832 dtohl(header->header->packageCount)); 2833 return (mError=BAD_TYPE); 2834 } 2835 uint32_t idmap_id = 0; 2836 if (idmap != NULL) { 2837 uint32_t tmp; 2838 if (getIdmapPackageId(header->resourceIDMap, 2839 header->resourceIDMapSize, 2840 &tmp) == NO_ERROR) { 2841 idmap_id = tmp; 2842 } 2843 } 2844 if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) { 2845 return mError; 2846 } 2847 curPackage++; 2848 } else { 2849 ALOGW("Unknown chunk type %p in table at %p.\n", 2850 (void*)(int)(ctype), 2851 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 2852 } 2853 chunk = (const ResChunk_header*) 2854 (((const uint8_t*)chunk) + csize); 2855 } 2856 2857 if (curPackage < dtohl(header->header->packageCount)) { 2858 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.", 2859 (int)curPackage, dtohl(header->header->packageCount)); 2860 return (mError=BAD_TYPE); 2861 } 2862 mError = header->values.getError(); 2863 if (mError != NO_ERROR) { 2864 ALOGW("No string values found in resource table!"); 2865 } 2866 2867 TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError)); 2868 return mError; 2869 } 2870 2871 status_t ResTable::getError() const 2872 { 2873 return mError; 2874 } 2875 2876 void ResTable::uninit() 2877 { 2878 mError = NO_INIT; 2879 size_t N = mPackageGroups.size(); 2880 for (size_t i=0; i<N; i++) { 2881 PackageGroup* g = mPackageGroups[i]; 2882 delete g; 2883 } 2884 N = mHeaders.size(); 2885 for (size_t i=0; i<N; i++) { 2886 Header* header = mHeaders[i]; 2887 if (header->owner == this) { 2888 if (header->ownedData) { 2889 free(header->ownedData); 2890 } 2891 delete header; 2892 } 2893 } 2894 2895 mPackageGroups.clear(); 2896 mHeaders.clear(); 2897 } 2898 2899 bool ResTable::getResourceName(uint32_t resID, resource_name* outName) const 2900 { 2901 if (mError != NO_ERROR) { 2902 return false; 2903 } 2904 2905 const ssize_t p = getResourcePackageIndex(resID); 2906 const int t = Res_GETTYPE(resID); 2907 const int e = Res_GETENTRY(resID); 2908 2909 if (p < 0) { 2910 if (Res_GETPACKAGE(resID)+1 == 0) { 2911 ALOGW("No package identifier when getting name for resource number 0x%08x", resID); 2912 } else { 2913 ALOGW("No known package when getting name for resource number 0x%08x", resID); 2914 } 2915 return false; 2916 } 2917 if (t < 0) { 2918 ALOGW("No type identifier when getting name for resource number 0x%08x", resID); 2919 return false; 2920 } 2921 2922 const PackageGroup* const grp = mPackageGroups[p]; 2923 if (grp == NULL) { 2924 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID); 2925 return false; 2926 } 2927 if (grp->packages.size() > 0) { 2928 const Package* const package = grp->packages[0]; 2929 2930 const ResTable_type* type; 2931 const ResTable_entry* entry; 2932 ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL); 2933 if (offset <= 0) { 2934 return false; 2935 } 2936 2937 outName->package = grp->name.string(); 2938 outName->packageLen = grp->name.size(); 2939 outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen); 2940 outName->name = grp->basePackage->keyStrings.stringAt( 2941 dtohl(entry->key.index), &outName->nameLen); 2942 2943 // If we have a bad index for some reason, we should abort. 2944 if (outName->type == NULL || outName->name == NULL) { 2945 return false; 2946 } 2947 2948 return true; 2949 } 2950 2951 return false; 2952 } 2953 2954 ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density, 2955 uint32_t* outSpecFlags, ResTable_config* outConfig) const 2956 { 2957 if (mError != NO_ERROR) { 2958 return mError; 2959 } 2960 2961 const ssize_t p = getResourcePackageIndex(resID); 2962 const int t = Res_GETTYPE(resID); 2963 const int e = Res_GETENTRY(resID); 2964 2965 if (p < 0) { 2966 if (Res_GETPACKAGE(resID)+1 == 0) { 2967 ALOGW("No package identifier when getting value for resource number 0x%08x", resID); 2968 } else { 2969 ALOGW("No known package when getting value for resource number 0x%08x", resID); 2970 } 2971 return BAD_INDEX; 2972 } 2973 if (t < 0) { 2974 ALOGW("No type identifier when getting value for resource number 0x%08x", resID); 2975 return BAD_INDEX; 2976 } 2977 2978 const Res_value* bestValue = NULL; 2979 const Package* bestPackage = NULL; 2980 ResTable_config bestItem; 2981 memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up 2982 2983 if (outSpecFlags != NULL) *outSpecFlags = 0; 2984 2985 // Look through all resource packages, starting with the most 2986 // recently added. 2987 const PackageGroup* const grp = mPackageGroups[p]; 2988 if (grp == NULL) { 2989 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID); 2990 return BAD_INDEX; 2991 } 2992 2993 // Allow overriding density 2994 const ResTable_config* desiredConfig = &mParams; 2995 ResTable_config* overrideConfig = NULL; 2996 if (density > 0) { 2997 overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config)); 2998 if (overrideConfig == NULL) { 2999 ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno)); 3000 return BAD_INDEX; 3001 } 3002 memcpy(overrideConfig, &mParams, sizeof(ResTable_config)); 3003 overrideConfig->density = density; 3004 desiredConfig = overrideConfig; 3005 } 3006 3007 ssize_t rc = BAD_VALUE; 3008 size_t ip = grp->packages.size(); 3009 while (ip > 0) { 3010 ip--; 3011 int T = t; 3012 int E = e; 3013 3014 const Package* const package = grp->packages[ip]; 3015 if (package->header->resourceIDMap) { 3016 uint32_t overlayResID = 0x0; 3017 status_t retval = idmapLookup(package->header->resourceIDMap, 3018 package->header->resourceIDMapSize, 3019 resID, &overlayResID); 3020 if (retval == NO_ERROR && overlayResID != 0x0) { 3021 // for this loop iteration, this is the type and entry we really want 3022 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID); 3023 T = Res_GETTYPE(overlayResID); 3024 E = Res_GETENTRY(overlayResID); 3025 } else { 3026 // resource not present in overlay package, continue with the next package 3027 continue; 3028 } 3029 } 3030 3031 const ResTable_type* type; 3032 const ResTable_entry* entry; 3033 const Type* typeClass; 3034 ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass); 3035 if (offset <= 0) { 3036 // No {entry, appropriate config} pair found in package. If this 3037 // package is an overlay package (ip != 0), this simply means the 3038 // overlay package did not specify a default. 3039 // Non-overlay packages are still required to provide a default. 3040 if (offset < 0 && ip == 0) { 3041 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n", 3042 resID, T, E, ip, (int)offset); 3043 rc = offset; 3044 goto out; 3045 } 3046 continue; 3047 } 3048 3049 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) { 3050 if (!mayBeBag) { 3051 ALOGW("Requesting resource %p failed because it is complex\n", 3052 (void*)resID); 3053 } 3054 continue; 3055 } 3056 3057 TABLE_NOISY(aout << "Resource type data: " 3058 << HexDump(type, dtohl(type->header.size)) << endl); 3059 3060 if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) { 3061 ALOGW("ResTable_item at %d is beyond type chunk data %d", 3062 (int)offset, dtohl(type->header.size)); 3063 rc = BAD_TYPE; 3064 goto out; 3065 } 3066 3067 const Res_value* item = 3068 (const Res_value*)(((const uint8_t*)type) + offset); 3069 ResTable_config thisConfig; 3070 thisConfig.copyFromDtoH(type->config); 3071 3072 if (outSpecFlags != NULL) { 3073 if (typeClass->typeSpecFlags != NULL) { 3074 *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]); 3075 } else { 3076 *outSpecFlags = -1; 3077 } 3078 } 3079 3080 if (bestPackage != NULL && 3081 (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) { 3082 // Discard thisConfig not only if bestItem is more specific, but also if the two configs 3083 // are identical (diff == 0), or overlay packages will not take effect. 3084 continue; 3085 } 3086 3087 bestItem = thisConfig; 3088 bestValue = item; 3089 bestPackage = package; 3090 } 3091 3092 TABLE_NOISY(printf("Found result: package %p\n", bestPackage)); 3093 3094 if (bestValue) { 3095 outValue->size = dtohs(bestValue->size); 3096 outValue->res0 = bestValue->res0; 3097 outValue->dataType = bestValue->dataType; 3098 outValue->data = dtohl(bestValue->data); 3099 if (outConfig != NULL) { 3100 *outConfig = bestItem; 3101 } 3102 TABLE_NOISY(size_t len; 3103 printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n", 3104 bestPackage->header->index, 3105 outValue->dataType, 3106 outValue->dataType == bestValue->TYPE_STRING 3107 ? String8(bestPackage->header->values.stringAt( 3108 outValue->data, &len)).string() 3109 : "", 3110 outValue->data)); 3111 rc = bestPackage->header->index; 3112 goto out; 3113 } 3114 3115 out: 3116 if (overrideConfig != NULL) { 3117 free(overrideConfig); 3118 } 3119 3120 return rc; 3121 } 3122 3123 ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex, 3124 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags, 3125 ResTable_config* outConfig) const 3126 { 3127 int count=0; 3128 while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE 3129 && value->data != 0 && count < 20) { 3130 if (outLastRef) *outLastRef = value->data; 3131 uint32_t lastRef = value->data; 3132 uint32_t newFlags = 0; 3133 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags, 3134 outConfig); 3135 if (newIndex == BAD_INDEX) { 3136 return BAD_INDEX; 3137 } 3138 TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n", 3139 (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data)); 3140 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex); 3141 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags; 3142 if (newIndex < 0) { 3143 // This can fail if the resource being referenced is a style... 3144 // in this case, just return the reference, and expect the 3145 // caller to deal with. 3146 return blockIndex; 3147 } 3148 blockIndex = newIndex; 3149 count++; 3150 } 3151 return blockIndex; 3152 } 3153 3154 const char16_t* ResTable::valueToString( 3155 const Res_value* value, size_t stringBlock, 3156 char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen) 3157 { 3158 if (!value) { 3159 return NULL; 3160 } 3161 if (value->dataType == value->TYPE_STRING) { 3162 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen); 3163 } 3164 // XXX do int to string conversions. 3165 return NULL; 3166 } 3167 3168 ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const 3169 { 3170 mLock.lock(); 3171 ssize_t err = getBagLocked(resID, outBag); 3172 if (err < NO_ERROR) { 3173 //printf("*** get failed! unlocking\n"); 3174 mLock.unlock(); 3175 } 3176 return err; 3177 } 3178 3179 void ResTable::unlockBag(const bag_entry* bag) const 3180 { 3181 //printf("<<< unlockBag %p\n", this); 3182 mLock.unlock(); 3183 } 3184 3185 void ResTable::lock() const 3186 { 3187 mLock.lock(); 3188 } 3189 3190 void ResTable::unlock() const 3191 { 3192 mLock.unlock(); 3193 } 3194 3195 ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag, 3196 uint32_t* outTypeSpecFlags) const 3197 { 3198 if (mError != NO_ERROR) { 3199 return mError; 3200 } 3201 3202 const ssize_t p = getResourcePackageIndex(resID); 3203 const int t = Res_GETTYPE(resID); 3204 const int e = Res_GETENTRY(resID); 3205 3206 if (p < 0) { 3207 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID); 3208 return BAD_INDEX; 3209 } 3210 if (t < 0) { 3211 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID); 3212 return BAD_INDEX; 3213 } 3214 3215 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t); 3216 PackageGroup* const grp = mPackageGroups[p]; 3217 if (grp == NULL) { 3218 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID); 3219 return false; 3220 } 3221 3222 if (t >= (int)grp->typeCount) { 3223 ALOGW("Type identifier 0x%x is larger than type count 0x%x", 3224 t+1, (int)grp->typeCount); 3225 return BAD_INDEX; 3226 } 3227 3228 const Package* const basePackage = grp->packages[0]; 3229 3230 const Type* const typeConfigs = basePackage->getType(t); 3231 3232 const size_t NENTRY = typeConfigs->entryCount; 3233 if (e >= (int)NENTRY) { 3234 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x", 3235 e, (int)typeConfigs->entryCount); 3236 return BAD_INDEX; 3237 } 3238 3239 // First see if we've already computed this bag... 3240 if (grp->bags) { 3241 bag_set** typeSet = grp->bags[t]; 3242 if (typeSet) { 3243 bag_set* set = typeSet[e]; 3244 if (set) { 3245 if (set != (bag_set*)0xFFFFFFFF) { 3246 if (outTypeSpecFlags != NULL) { 3247 *outTypeSpecFlags = set->typeSpecFlags; 3248 } 3249 *outBag = (bag_entry*)(set+1); 3250 //ALOGI("Found existing bag for: %p\n", (void*)resID); 3251 return set->numAttrs; 3252 } 3253 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.", 3254 resID); 3255 return BAD_INDEX; 3256 } 3257 } 3258 } 3259 3260 // Bag not found, we need to compute it! 3261 if (!grp->bags) { 3262 grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*)); 3263 if (!grp->bags) return NO_MEMORY; 3264 } 3265 3266 bag_set** typeSet = grp->bags[t]; 3267 if (!typeSet) { 3268 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*)); 3269 if (!typeSet) return NO_MEMORY; 3270 grp->bags[t] = typeSet; 3271 } 3272 3273 // Mark that we are currently working on this one. 3274 typeSet[e] = (bag_set*)0xFFFFFFFF; 3275 3276 // This is what we are building. 3277 bag_set* set = NULL; 3278 3279 TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID)); 3280 3281 ResTable_config bestConfig; 3282 memset(&bestConfig, 0, sizeof(bestConfig)); 3283 3284 // Now collect all bag attributes from all packages. 3285 size_t ip = grp->packages.size(); 3286 while (ip > 0) { 3287 ip--; 3288 int T = t; 3289 int E = e; 3290 3291 const Package* const package = grp->packages[ip]; 3292 if (package->header->resourceIDMap) { 3293 uint32_t overlayResID = 0x0; 3294 status_t retval = idmapLookup(package->header->resourceIDMap, 3295 package->header->resourceIDMapSize, 3296 resID, &overlayResID); 3297 if (retval == NO_ERROR && overlayResID != 0x0) { 3298 // for this loop iteration, this is the type and entry we really want 3299 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID); 3300 T = Res_GETTYPE(overlayResID); 3301 E = Res_GETENTRY(overlayResID); 3302 } else { 3303 // resource not present in overlay package, continue with the next package 3304 continue; 3305 } 3306 } 3307 3308 const ResTable_type* type; 3309 const ResTable_entry* entry; 3310 const Type* typeClass; 3311 ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E); 3312 ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass); 3313 ALOGV("Resulting offset=%d\n", offset); 3314 if (offset <= 0) { 3315 // No {entry, appropriate config} pair found in package. If this 3316 // package is an overlay package (ip != 0), this simply means the 3317 // overlay package did not specify a default. 3318 // Non-overlay packages are still required to provide a default. 3319 if (offset < 0 && ip == 0) { 3320 if (set) free(set); 3321 return offset; 3322 } 3323 continue; 3324 } 3325 3326 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) { 3327 ALOGW("Skipping entry %p in package table %d because it is not complex!\n", 3328 (void*)resID, (int)ip); 3329 continue; 3330 } 3331 3332 if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) { 3333 continue; 3334 } 3335 bestConfig = type->config; 3336 if (set) { 3337 free(set); 3338 set = NULL; 3339 } 3340 3341 const uint16_t entrySize = dtohs(entry->size); 3342 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry) 3343 ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0; 3344 const uint32_t count = entrySize >= sizeof(ResTable_map_entry) 3345 ? dtohl(((const ResTable_map_entry*)entry)->count) : 0; 3346 3347 size_t N = count; 3348 3349 TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n", 3350 entrySize, parent, count)); 3351 3352 // If this map inherits from another, we need to start 3353 // with its parent's values. Otherwise start out empty. 3354 TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n", 3355 entrySize, parent)); 3356 if (parent) { 3357 const bag_entry* parentBag; 3358 uint32_t parentTypeSpecFlags = 0; 3359 const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags); 3360 const size_t NT = ((NP >= 0) ? NP : 0) + N; 3361 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT); 3362 if (set == NULL) { 3363 return NO_MEMORY; 3364 } 3365 if (NP > 0) { 3366 memcpy(set+1, parentBag, NP*sizeof(bag_entry)); 3367 set->numAttrs = NP; 3368 TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP)); 3369 } else { 3370 TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n")); 3371 set->numAttrs = 0; 3372 } 3373 set->availAttrs = NT; 3374 set->typeSpecFlags = parentTypeSpecFlags; 3375 } else { 3376 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N); 3377 if (set == NULL) { 3378 return NO_MEMORY; 3379 } 3380 set->numAttrs = 0; 3381 set->availAttrs = N; 3382 set->typeSpecFlags = 0; 3383 } 3384 3385 if (typeClass->typeSpecFlags != NULL) { 3386 set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]); 3387 } else { 3388 set->typeSpecFlags = -1; 3389 } 3390 3391 // Now merge in the new attributes... 3392 ssize_t curOff = offset; 3393 const ResTable_map* map; 3394 bag_entry* entries = (bag_entry*)(set+1); 3395 size_t curEntry = 0; 3396 uint32_t pos = 0; 3397 TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n", 3398 set, entries, set->availAttrs)); 3399 while (pos < count) { 3400 TABLE_NOISY(printf("Now at %p\n", (void*)curOff)); 3401 3402 if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) { 3403 ALOGW("ResTable_map at %d is beyond type chunk data %d", 3404 (int)curOff, dtohl(type->header.size)); 3405 return BAD_TYPE; 3406 } 3407 map = (const ResTable_map*)(((const uint8_t*)type) + curOff); 3408 N++; 3409 3410 const uint32_t newName = htodl(map->name.ident); 3411 bool isInside; 3412 uint32_t oldName = 0; 3413 while ((isInside=(curEntry < set->numAttrs)) 3414 && (oldName=entries[curEntry].map.name.ident) < newName) { 3415 TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n", 3416 curEntry, entries[curEntry].map.name.ident)); 3417 curEntry++; 3418 } 3419 3420 if ((!isInside) || oldName != newName) { 3421 // This is a new attribute... figure out what to do with it. 3422 if (set->numAttrs >= set->availAttrs) { 3423 // Need to alloc more memory... 3424 const size_t newAvail = set->availAttrs+N; 3425 set = (bag_set*)realloc(set, 3426 sizeof(bag_set) 3427 + sizeof(bag_entry)*newAvail); 3428 if (set == NULL) { 3429 return NO_MEMORY; 3430 } 3431 set->availAttrs = newAvail; 3432 entries = (bag_entry*)(set+1); 3433 TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n", 3434 set, entries, set->availAttrs)); 3435 } 3436 if (isInside) { 3437 // Going in the middle, need to make space. 3438 memmove(entries+curEntry+1, entries+curEntry, 3439 sizeof(bag_entry)*(set->numAttrs-curEntry)); 3440 set->numAttrs++; 3441 } 3442 TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n", 3443 curEntry, newName)); 3444 } else { 3445 TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n", 3446 curEntry, oldName)); 3447 } 3448 3449 bag_entry* cur = entries+curEntry; 3450 3451 cur->stringBlock = package->header->index; 3452 cur->map.name.ident = newName; 3453 cur->map.value.copyFrom_dtoh(map->value); 3454 TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n", 3455 curEntry, cur, cur->stringBlock, cur->map.name.ident, 3456 cur->map.value.dataType, cur->map.value.data)); 3457 3458 // On to the next! 3459 curEntry++; 3460 pos++; 3461 const size_t size = dtohs(map->value.size); 3462 curOff += size + sizeof(*map)-sizeof(map->value); 3463 }; 3464 if (curEntry > set->numAttrs) { 3465 set->numAttrs = curEntry; 3466 } 3467 } 3468 3469 // And this is it... 3470 typeSet[e] = set; 3471 if (set) { 3472 if (outTypeSpecFlags != NULL) { 3473 *outTypeSpecFlags = set->typeSpecFlags; 3474 } 3475 *outBag = (bag_entry*)(set+1); 3476 TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs)); 3477 return set->numAttrs; 3478 } 3479 return BAD_INDEX; 3480 } 3481 3482 void ResTable::setParameters(const ResTable_config* params) 3483 { 3484 mLock.lock(); 3485 TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string())); 3486 mParams = *params; 3487 for (size_t i=0; i<mPackageGroups.size(); i++) { 3488 TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i)); 3489 mPackageGroups[i]->clearBagCache(); 3490 } 3491 mLock.unlock(); 3492 } 3493 3494 void ResTable::getParameters(ResTable_config* params) const 3495 { 3496 mLock.lock(); 3497 *params = mParams; 3498 mLock.unlock(); 3499 } 3500 3501 struct id_name_map { 3502 uint32_t id; 3503 size_t len; 3504 char16_t name[6]; 3505 }; 3506 3507 const static id_name_map ID_NAMES[] = { 3508 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } }, 3509 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } }, 3510 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } }, 3511 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } }, 3512 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } }, 3513 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } }, 3514 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } }, 3515 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } }, 3516 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } }, 3517 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } }, 3518 }; 3519 3520 uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen, 3521 const char16_t* type, size_t typeLen, 3522 const char16_t* package, 3523 size_t packageLen, 3524 uint32_t* outTypeSpecFlags) const 3525 { 3526 TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError)); 3527 3528 // Check for internal resource identifier as the very first thing, so 3529 // that we will always find them even when there are no resources. 3530 if (name[0] == '^') { 3531 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0])); 3532 size_t len; 3533 for (int i=0; i<N; i++) { 3534 const id_name_map* m = ID_NAMES + i; 3535 len = m->len; 3536 if (len != nameLen) { 3537 continue; 3538 } 3539 for (size_t j=1; j<len; j++) { 3540 if (m->name[j] != name[j]) { 3541 goto nope; 3542 } 3543 } 3544 if (outTypeSpecFlags) { 3545 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 3546 } 3547 return m->id; 3548 nope: 3549 ; 3550 } 3551 if (nameLen > 7) { 3552 if (name[1] == 'i' && name[2] == 'n' 3553 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x' 3554 && name[6] == '_') { 3555 int index = atoi(String8(name + 7, nameLen - 7).string()); 3556 if (Res_CHECKID(index)) { 3557 ALOGW("Array resource index: %d is too large.", 3558 index); 3559 return 0; 3560 } 3561 if (outTypeSpecFlags) { 3562 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 3563 } 3564 return Res_MAKEARRAY(index); 3565 } 3566 } 3567 return 0; 3568 } 3569 3570 if (mError != NO_ERROR) { 3571 return 0; 3572 } 3573 3574 bool fakePublic = false; 3575 3576 // Figure out the package and type we are looking in... 3577 3578 const char16_t* packageEnd = NULL; 3579 const char16_t* typeEnd = NULL; 3580 const char16_t* const nameEnd = name+nameLen; 3581 const char16_t* p = name; 3582 while (p < nameEnd) { 3583 if (*p == ':') packageEnd = p; 3584 else if (*p == '/') typeEnd = p; 3585 p++; 3586 } 3587 if (*name == '@') { 3588 name++; 3589 if (*name == '*') { 3590 fakePublic = true; 3591 name++; 3592 } 3593 } 3594 if (name >= nameEnd) { 3595 return 0; 3596 } 3597 3598 if (packageEnd) { 3599 package = name; 3600 packageLen = packageEnd-name; 3601 name = packageEnd+1; 3602 } else if (!package) { 3603 return 0; 3604 } 3605 3606 if (typeEnd) { 3607 type = name; 3608 typeLen = typeEnd-name; 3609 name = typeEnd+1; 3610 } else if (!type) { 3611 return 0; 3612 } 3613 3614 if (name >= nameEnd) { 3615 return 0; 3616 } 3617 nameLen = nameEnd-name; 3618 3619 TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n", 3620 String8(type, typeLen).string(), 3621 String8(name, nameLen).string(), 3622 String8(package, packageLen).string())); 3623 3624 const size_t NG = mPackageGroups.size(); 3625 for (size_t ig=0; ig<NG; ig++) { 3626 const PackageGroup* group = mPackageGroups[ig]; 3627 3628 if (strzcmp16(package, packageLen, 3629 group->name.string(), group->name.size())) { 3630 TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string())); 3631 continue; 3632 } 3633 3634 const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen); 3635 if (ti < 0) { 3636 TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string())); 3637 continue; 3638 } 3639 3640 const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen); 3641 if (ei < 0) { 3642 TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string())); 3643 continue; 3644 } 3645 3646 TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei)); 3647 3648 const Type* const typeConfigs = group->packages[0]->getType(ti); 3649 if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) { 3650 TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n", 3651 String8(group->name).string(), ti)); 3652 } 3653 3654 size_t NTC = typeConfigs->configs.size(); 3655 for (size_t tci=0; tci<NTC; tci++) { 3656 const ResTable_type* const ty = typeConfigs->configs[tci]; 3657 const uint32_t typeOffset = dtohl(ty->entriesStart); 3658 3659 const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size); 3660 const uint32_t* const eindex = (const uint32_t*) 3661 (((const uint8_t*)ty) + dtohs(ty->header.headerSize)); 3662 3663 const size_t NE = dtohl(ty->entryCount); 3664 for (size_t i=0; i<NE; i++) { 3665 uint32_t offset = dtohl(eindex[i]); 3666 if (offset == ResTable_type::NO_ENTRY) { 3667 continue; 3668 } 3669 3670 offset += typeOffset; 3671 3672 if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) { 3673 ALOGW("ResTable_entry at %d is beyond type chunk data %d", 3674 offset, dtohl(ty->header.size)); 3675 return 0; 3676 } 3677 if ((offset&0x3) != 0) { 3678 ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s", 3679 (int)offset, (int)group->id, (int)ti+1, (int)i, 3680 String8(package, packageLen).string(), 3681 String8(type, typeLen).string(), 3682 String8(name, nameLen).string()); 3683 return 0; 3684 } 3685 3686 const ResTable_entry* const entry = (const ResTable_entry*) 3687 (((const uint8_t*)ty) + offset); 3688 if (dtohs(entry->size) < sizeof(*entry)) { 3689 ALOGW("ResTable_entry size %d is too small", dtohs(entry->size)); 3690 return BAD_TYPE; 3691 } 3692 3693 TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n", 3694 i, ei, dtohl(entry->key.index))); 3695 if (dtohl(entry->key.index) == (size_t)ei) { 3696 if (outTypeSpecFlags) { 3697 *outTypeSpecFlags = typeConfigs->typeSpecFlags[i]; 3698 if (fakePublic) { 3699 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC; 3700 } 3701 } 3702 return Res_MAKEID(group->id-1, ti, i); 3703 } 3704 } 3705 } 3706 } 3707 3708 return 0; 3709 } 3710 3711 bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen, 3712 String16* outPackage, 3713 String16* outType, 3714 String16* outName, 3715 const String16* defType, 3716 const String16* defPackage, 3717 const char** outErrorMsg, 3718 bool* outPublicOnly) 3719 { 3720 const char16_t* packageEnd = NULL; 3721 const char16_t* typeEnd = NULL; 3722 const char16_t* p = refStr; 3723 const char16_t* const end = p + refLen; 3724 while (p < end) { 3725 if (*p == ':') packageEnd = p; 3726 else if (*p == '/') { 3727 typeEnd = p; 3728 break; 3729 } 3730 p++; 3731 } 3732 p = refStr; 3733 if (*p == '@') p++; 3734 3735 if (outPublicOnly != NULL) { 3736 *outPublicOnly = true; 3737 } 3738 if (*p == '*') { 3739 p++; 3740 if (outPublicOnly != NULL) { 3741 *outPublicOnly = false; 3742 } 3743 } 3744 3745 if (packageEnd) { 3746 *outPackage = String16(p, packageEnd-p); 3747 p = packageEnd+1; 3748 } else { 3749 if (!defPackage) { 3750 if (outErrorMsg) { 3751 *outErrorMsg = "No resource package specified"; 3752 } 3753 return false; 3754 } 3755 *outPackage = *defPackage; 3756 } 3757 if (typeEnd) { 3758 *outType = String16(p, typeEnd-p); 3759 p = typeEnd+1; 3760 } else { 3761 if (!defType) { 3762 if (outErrorMsg) { 3763 *outErrorMsg = "No resource type specified"; 3764 } 3765 return false; 3766 } 3767 *outType = *defType; 3768 } 3769 *outName = String16(p, end-p); 3770 if(**outPackage == 0) { 3771 if(outErrorMsg) { 3772 *outErrorMsg = "Resource package cannot be an empty string"; 3773 } 3774 return false; 3775 } 3776 if(**outType == 0) { 3777 if(outErrorMsg) { 3778 *outErrorMsg = "Resource type cannot be an empty string"; 3779 } 3780 return false; 3781 } 3782 if(**outName == 0) { 3783 if(outErrorMsg) { 3784 *outErrorMsg = "Resource id cannot be an empty string"; 3785 } 3786 return false; 3787 } 3788 return true; 3789 } 3790 3791 static uint32_t get_hex(char c, bool* outError) 3792 { 3793 if (c >= '0' && c <= '9') { 3794 return c - '0'; 3795 } else if (c >= 'a' && c <= 'f') { 3796 return c - 'a' + 0xa; 3797 } else if (c >= 'A' && c <= 'F') { 3798 return c - 'A' + 0xa; 3799 } 3800 *outError = true; 3801 return 0; 3802 } 3803 3804 struct unit_entry 3805 { 3806 const char* name; 3807 size_t len; 3808 uint8_t type; 3809 uint32_t unit; 3810 float scale; 3811 }; 3812 3813 static const unit_entry unitNames[] = { 3814 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f }, 3815 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 3816 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 3817 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f }, 3818 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f }, 3819 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f }, 3820 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f }, 3821 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 }, 3822 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 }, 3823 { NULL, 0, 0, 0, 0 } 3824 }; 3825 3826 static bool parse_unit(const char* str, Res_value* outValue, 3827 float* outScale, const char** outEnd) 3828 { 3829 const char* end = str; 3830 while (*end != 0 && !isspace((unsigned char)*end)) { 3831 end++; 3832 } 3833 const size_t len = end-str; 3834 3835 const char* realEnd = end; 3836 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) { 3837 realEnd++; 3838 } 3839 if (*realEnd != 0) { 3840 return false; 3841 } 3842 3843 const unit_entry* cur = unitNames; 3844 while (cur->name) { 3845 if (len == cur->len && strncmp(cur->name, str, len) == 0) { 3846 outValue->dataType = cur->type; 3847 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT; 3848 *outScale = cur->scale; 3849 *outEnd = end; 3850 //printf("Found unit %s for %s\n", cur->name, str); 3851 return true; 3852 } 3853 cur++; 3854 } 3855 3856 return false; 3857 } 3858 3859 3860 bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue) 3861 { 3862 while (len > 0 && isspace16(*s)) { 3863 s++; 3864 len--; 3865 } 3866 3867 if (len <= 0) { 3868 return false; 3869 } 3870 3871 size_t i = 0; 3872 int32_t val = 0; 3873 bool neg = false; 3874 3875 if (*s == '-') { 3876 neg = true; 3877 i++; 3878 } 3879 3880 if (s[i] < '0' || s[i] > '9') { 3881 return false; 3882 } 3883 3884 // Decimal or hex? 3885 if (s[i] == '0' && s[i+1] == 'x') { 3886 if (outValue) 3887 outValue->dataType = outValue->TYPE_INT_HEX; 3888 i += 2; 3889 bool error = false; 3890 while (i < len && !error) { 3891 val = (val*16) + get_hex(s[i], &error); 3892 i++; 3893 } 3894 if (error) { 3895 return false; 3896 } 3897 } else { 3898 if (outValue) 3899 outValue->dataType = outValue->TYPE_INT_DEC; 3900 while (i < len) { 3901 if (s[i] < '0' || s[i] > '9') { 3902 return false; 3903 } 3904 val = (val*10) + s[i]-'0'; 3905 i++; 3906 } 3907 } 3908 3909 if (neg) val = -val; 3910 3911 while (i < len && isspace16(s[i])) { 3912 i++; 3913 } 3914 3915 if (i == len) { 3916 if (outValue) 3917 outValue->data = val; 3918 return true; 3919 } 3920 3921 return false; 3922 } 3923 3924 bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue) 3925 { 3926 while (len > 0 && isspace16(*s)) { 3927 s++; 3928 len--; 3929 } 3930 3931 if (len <= 0) { 3932 return false; 3933 } 3934 3935 char buf[128]; 3936 int i=0; 3937 while (len > 0 && *s != 0 && i < 126) { 3938 if (*s > 255) { 3939 return false; 3940 } 3941 buf[i++] = *s++; 3942 len--; 3943 } 3944 3945 if (len > 0) { 3946 return false; 3947 } 3948 if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') { 3949 return false; 3950 } 3951 3952 buf[i] = 0; 3953 const char* end; 3954 float f = strtof(buf, (char**)&end); 3955 3956 if (*end != 0 && !isspace((unsigned char)*end)) { 3957 // Might be a unit... 3958 float scale; 3959 if (parse_unit(end, outValue, &scale, &end)) { 3960 f *= scale; 3961 const bool neg = f < 0; 3962 if (neg) f = -f; 3963 uint64_t bits = (uint64_t)(f*(1<<23)+.5f); 3964 uint32_t radix; 3965 uint32_t shift; 3966 if ((bits&0x7fffff) == 0) { 3967 // Always use 23p0 if there is no fraction, just to make 3968 // things easier to read. 3969 radix = Res_value::COMPLEX_RADIX_23p0; 3970 shift = 23; 3971 } else if ((bits&0xffffffffff800000LL) == 0) { 3972 // Magnitude is zero -- can fit in 0 bits of precision. 3973 radix = Res_value::COMPLEX_RADIX_0p23; 3974 shift = 0; 3975 } else if ((bits&0xffffffff80000000LL) == 0) { 3976 // Magnitude can fit in 8 bits of precision. 3977 radix = Res_value::COMPLEX_RADIX_8p15; 3978 shift = 8; 3979 } else if ((bits&0xffffff8000000000LL) == 0) { 3980 // Magnitude can fit in 16 bits of precision. 3981 radix = Res_value::COMPLEX_RADIX_16p7; 3982 shift = 16; 3983 } else { 3984 // Magnitude needs entire range, so no fractional part. 3985 radix = Res_value::COMPLEX_RADIX_23p0; 3986 shift = 23; 3987 } 3988 int32_t mantissa = (int32_t)( 3989 (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK); 3990 if (neg) { 3991 mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK; 3992 } 3993 outValue->data |= 3994 (radix<<Res_value::COMPLEX_RADIX_SHIFT) 3995 | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT); 3996 //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n", 3997 // f * (neg ? -1 : 1), bits, f*(1<<23), 3998 // radix, shift, outValue->data); 3999 return true; 4000 } 4001 return false; 4002 } 4003 4004 while (*end != 0 && isspace((unsigned char)*end)) { 4005 end++; 4006 } 4007 4008 if (*end == 0) { 4009 if (outValue) { 4010 outValue->dataType = outValue->TYPE_FLOAT; 4011 *(float*)(&outValue->data) = f; 4012 return true; 4013 } 4014 } 4015 4016 return false; 4017 } 4018 4019 bool ResTable::stringToValue(Res_value* outValue, String16* outString, 4020 const char16_t* s, size_t len, 4021 bool preserveSpaces, bool coerceType, 4022 uint32_t attrID, 4023 const String16* defType, 4024 const String16* defPackage, 4025 Accessor* accessor, 4026 void* accessorCookie, 4027 uint32_t attrType, 4028 bool enforcePrivate) const 4029 { 4030 bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting(); 4031 const char* errorMsg = NULL; 4032 4033 outValue->size = sizeof(Res_value); 4034 outValue->res0 = 0; 4035 4036 // First strip leading/trailing whitespace. Do this before handling 4037 // escapes, so they can be used to force whitespace into the string. 4038 if (!preserveSpaces) { 4039 while (len > 0 && isspace16(*s)) { 4040 s++; 4041 len--; 4042 } 4043 while (len > 0 && isspace16(s[len-1])) { 4044 len--; 4045 } 4046 // If the string ends with '\', then we keep the space after it. 4047 if (len > 0 && s[len-1] == '\\' && s[len] != 0) { 4048 len++; 4049 } 4050 } 4051 4052 //printf("Value for: %s\n", String8(s, len).string()); 4053 4054 uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED; 4055 uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff; 4056 bool fromAccessor = false; 4057 if (attrID != 0 && !Res_INTERNALID(attrID)) { 4058 const ssize_t p = getResourcePackageIndex(attrID); 4059 const bag_entry* bag; 4060 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 4061 //printf("For attr 0x%08x got bag of %d\n", attrID, cnt); 4062 if (cnt >= 0) { 4063 while (cnt > 0) { 4064 //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data); 4065 switch (bag->map.name.ident) { 4066 case ResTable_map::ATTR_TYPE: 4067 attrType = bag->map.value.data; 4068 break; 4069 case ResTable_map::ATTR_MIN: 4070 attrMin = bag->map.value.data; 4071 break; 4072 case ResTable_map::ATTR_MAX: 4073 attrMax = bag->map.value.data; 4074 break; 4075 case ResTable_map::ATTR_L10N: 4076 l10nReq = bag->map.value.data; 4077 break; 4078 } 4079 bag++; 4080 cnt--; 4081 } 4082 unlockBag(bag); 4083 } else if (accessor && accessor->getAttributeType(attrID, &attrType)) { 4084 fromAccessor = true; 4085 if (attrType == ResTable_map::TYPE_ENUM 4086 || attrType == ResTable_map::TYPE_FLAGS 4087 || attrType == ResTable_map::TYPE_INTEGER) { 4088 accessor->getAttributeMin(attrID, &attrMin); 4089 accessor->getAttributeMax(attrID, &attrMax); 4090 } 4091 if (localizationSetting) { 4092 l10nReq = accessor->getAttributeL10N(attrID); 4093 } 4094 } 4095 } 4096 4097 const bool canStringCoerce = 4098 coerceType && (attrType&ResTable_map::TYPE_STRING) != 0; 4099 4100 if (*s == '@') { 4101 outValue->dataType = outValue->TYPE_REFERENCE; 4102 4103 // Note: we don't check attrType here because the reference can 4104 // be to any other type; we just need to count on the client making 4105 // sure the referenced type is correct. 4106 4107 //printf("Looking up ref: %s\n", String8(s, len).string()); 4108 4109 // It's a reference! 4110 if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') { 4111 outValue->data = 0; 4112 return true; 4113 } else { 4114 bool createIfNotFound = false; 4115 const char16_t* resourceRefName; 4116 int resourceNameLen; 4117 if (len > 2 && s[1] == '+') { 4118 createIfNotFound = true; 4119 resourceRefName = s + 2; 4120 resourceNameLen = len - 2; 4121 } else if (len > 2 && s[1] == '*') { 4122 enforcePrivate = false; 4123 resourceRefName = s + 2; 4124 resourceNameLen = len - 2; 4125 } else { 4126 createIfNotFound = false; 4127 resourceRefName = s + 1; 4128 resourceNameLen = len - 1; 4129 } 4130 String16 package, type, name; 4131 if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name, 4132 defType, defPackage, &errorMsg)) { 4133 if (accessor != NULL) { 4134 accessor->reportError(accessorCookie, errorMsg); 4135 } 4136 return false; 4137 } 4138 4139 uint32_t specFlags = 0; 4140 uint32_t rid = identifierForName(name.string(), name.size(), type.string(), 4141 type.size(), package.string(), package.size(), &specFlags); 4142 if (rid != 0) { 4143 if (enforcePrivate) { 4144 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) { 4145 if (accessor != NULL) { 4146 accessor->reportError(accessorCookie, "Resource is not public."); 4147 } 4148 return false; 4149 } 4150 } 4151 if (!accessor) { 4152 outValue->data = rid; 4153 return true; 4154 } 4155 rid = Res_MAKEID( 4156 accessor->getRemappedPackage(Res_GETPACKAGE(rid)), 4157 Res_GETTYPE(rid), Res_GETENTRY(rid)); 4158 TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n", 4159 String8(package).string(), String8(type).string(), 4160 String8(name).string(), rid)); 4161 outValue->data = rid; 4162 return true; 4163 } 4164 4165 if (accessor) { 4166 uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name, 4167 createIfNotFound); 4168 if (rid != 0) { 4169 TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n", 4170 String8(package).string(), String8(type).string(), 4171 String8(name).string(), rid)); 4172 outValue->data = rid; 4173 return true; 4174 } 4175 } 4176 } 4177 4178 if (accessor != NULL) { 4179 accessor->reportError(accessorCookie, "No resource found that matches the given name"); 4180 } 4181 return false; 4182 } 4183 4184 // if we got to here, and localization is required and it's not a reference, 4185 // complain and bail. 4186 if (l10nReq == ResTable_map::L10N_SUGGESTED) { 4187 if (localizationSetting) { 4188 if (accessor != NULL) { 4189 accessor->reportError(accessorCookie, "This attribute must be localized."); 4190 } 4191 } 4192 } 4193 4194 if (*s == '#') { 4195 // It's a color! Convert to an integer of the form 0xaarrggbb. 4196 uint32_t color = 0; 4197 bool error = false; 4198 if (len == 4) { 4199 outValue->dataType = outValue->TYPE_INT_COLOR_RGB4; 4200 color |= 0xFF000000; 4201 color |= get_hex(s[1], &error) << 20; 4202 color |= get_hex(s[1], &error) << 16; 4203 color |= get_hex(s[2], &error) << 12; 4204 color |= get_hex(s[2], &error) << 8; 4205 color |= get_hex(s[3], &error) << 4; 4206 color |= get_hex(s[3], &error); 4207 } else if (len == 5) { 4208 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4; 4209 color |= get_hex(s[1], &error) << 28; 4210 color |= get_hex(s[1], &error) << 24; 4211 color |= get_hex(s[2], &error) << 20; 4212 color |= get_hex(s[2], &error) << 16; 4213 color |= get_hex(s[3], &error) << 12; 4214 color |= get_hex(s[3], &error) << 8; 4215 color |= get_hex(s[4], &error) << 4; 4216 color |= get_hex(s[4], &error); 4217 } else if (len == 7) { 4218 outValue->dataType = outValue->TYPE_INT_COLOR_RGB8; 4219 color |= 0xFF000000; 4220 color |= get_hex(s[1], &error) << 20; 4221 color |= get_hex(s[2], &error) << 16; 4222 color |= get_hex(s[3], &error) << 12; 4223 color |= get_hex(s[4], &error) << 8; 4224 color |= get_hex(s[5], &error) << 4; 4225 color |= get_hex(s[6], &error); 4226 } else if (len == 9) { 4227 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8; 4228 color |= get_hex(s[1], &error) << 28; 4229 color |= get_hex(s[2], &error) << 24; 4230 color |= get_hex(s[3], &error) << 20; 4231 color |= get_hex(s[4], &error) << 16; 4232 color |= get_hex(s[5], &error) << 12; 4233 color |= get_hex(s[6], &error) << 8; 4234 color |= get_hex(s[7], &error) << 4; 4235 color |= get_hex(s[8], &error); 4236 } else { 4237 error = true; 4238 } 4239 if (!error) { 4240 if ((attrType&ResTable_map::TYPE_COLOR) == 0) { 4241 if (!canStringCoerce) { 4242 if (accessor != NULL) { 4243 accessor->reportError(accessorCookie, 4244 "Color types not allowed"); 4245 } 4246 return false; 4247 } 4248 } else { 4249 outValue->data = color; 4250 //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color); 4251 return true; 4252 } 4253 } else { 4254 if ((attrType&ResTable_map::TYPE_COLOR) != 0) { 4255 if (accessor != NULL) { 4256 accessor->reportError(accessorCookie, "Color value not valid --" 4257 " must be #rgb, #argb, #rrggbb, or #aarrggbb"); 4258 } 4259 #if 0 4260 fprintf(stderr, "%s: Color ID %s value %s is not valid\n", 4261 "Resource File", //(const char*)in->getPrintableSource(), 4262 String8(*curTag).string(), 4263 String8(s, len).string()); 4264 #endif 4265 return false; 4266 } 4267 } 4268 } 4269 4270 if (*s == '?') { 4271 outValue->dataType = outValue->TYPE_ATTRIBUTE; 4272 4273 // Note: we don't check attrType here because the reference can 4274 // be to any other type; we just need to count on the client making 4275 // sure the referenced type is correct. 4276 4277 //printf("Looking up attr: %s\n", String8(s, len).string()); 4278 4279 static const String16 attr16("attr"); 4280 String16 package, type, name; 4281 if (!expandResourceRef(s+1, len-1, &package, &type, &name, 4282 &attr16, defPackage, &errorMsg)) { 4283 if (accessor != NULL) { 4284 accessor->reportError(accessorCookie, errorMsg); 4285 } 4286 return false; 4287 } 4288 4289 //printf("Pkg: %s, Type: %s, Name: %s\n", 4290 // String8(package).string(), String8(type).string(), 4291 // String8(name).string()); 4292 uint32_t specFlags = 0; 4293 uint32_t rid = 4294 identifierForName(name.string(), name.size(), 4295 type.string(), type.size(), 4296 package.string(), package.size(), &specFlags); 4297 if (rid != 0) { 4298 if (enforcePrivate) { 4299 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) { 4300 if (accessor != NULL) { 4301 accessor->reportError(accessorCookie, "Attribute is not public."); 4302 } 4303 return false; 4304 } 4305 } 4306 if (!accessor) { 4307 outValue->data = rid; 4308 return true; 4309 } 4310 rid = Res_MAKEID( 4311 accessor->getRemappedPackage(Res_GETPACKAGE(rid)), 4312 Res_GETTYPE(rid), Res_GETENTRY(rid)); 4313 //printf("Incl %s:%s/%s: 0x%08x\n", 4314 // String8(package).string(), String8(type).string(), 4315 // String8(name).string(), rid); 4316 outValue->data = rid; 4317 return true; 4318 } 4319 4320 if (accessor) { 4321 uint32_t rid = accessor->getCustomResource(package, type, name); 4322 if (rid != 0) { 4323 //printf("Mine %s:%s/%s: 0x%08x\n", 4324 // String8(package).string(), String8(type).string(), 4325 // String8(name).string(), rid); 4326 outValue->data = rid; 4327 return true; 4328 } 4329 } 4330 4331 if (accessor != NULL) { 4332 accessor->reportError(accessorCookie, "No resource found that matches the given name"); 4333 } 4334 return false; 4335 } 4336 4337 if (stringToInt(s, len, outValue)) { 4338 if ((attrType&ResTable_map::TYPE_INTEGER) == 0) { 4339 // If this type does not allow integers, but does allow floats, 4340 // fall through on this error case because the float type should 4341 // be able to accept any integer value. 4342 if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) { 4343 if (accessor != NULL) { 4344 accessor->reportError(accessorCookie, "Integer types not allowed"); 4345 } 4346 return false; 4347 } 4348 } else { 4349 if (((int32_t)outValue->data) < ((int32_t)attrMin) 4350 || ((int32_t)outValue->data) > ((int32_t)attrMax)) { 4351 if (accessor != NULL) { 4352 accessor->reportError(accessorCookie, "Integer value out of range"); 4353 } 4354 return false; 4355 } 4356 return true; 4357 } 4358 } 4359 4360 if (stringToFloat(s, len, outValue)) { 4361 if (outValue->dataType == Res_value::TYPE_DIMENSION) { 4362 if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) { 4363 return true; 4364 } 4365 if (!canStringCoerce) { 4366 if (accessor != NULL) { 4367 accessor->reportError(accessorCookie, "Dimension types not allowed"); 4368 } 4369 return false; 4370 } 4371 } else if (outValue->dataType == Res_value::TYPE_FRACTION) { 4372 if ((attrType&ResTable_map::TYPE_FRACTION) != 0) { 4373 return true; 4374 } 4375 if (!canStringCoerce) { 4376 if (accessor != NULL) { 4377 accessor->reportError(accessorCookie, "Fraction types not allowed"); 4378 } 4379 return false; 4380 } 4381 } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) { 4382 if (!canStringCoerce) { 4383 if (accessor != NULL) { 4384 accessor->reportError(accessorCookie, "Float types not allowed"); 4385 } 4386 return false; 4387 } 4388 } else { 4389 return true; 4390 } 4391 } 4392 4393 if (len == 4) { 4394 if ((s[0] == 't' || s[0] == 'T') && 4395 (s[1] == 'r' || s[1] == 'R') && 4396 (s[2] == 'u' || s[2] == 'U') && 4397 (s[3] == 'e' || s[3] == 'E')) { 4398 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) { 4399 if (!canStringCoerce) { 4400 if (accessor != NULL) { 4401 accessor->reportError(accessorCookie, "Boolean types not allowed"); 4402 } 4403 return false; 4404 } 4405 } else { 4406 outValue->dataType = outValue->TYPE_INT_BOOLEAN; 4407 outValue->data = (uint32_t)-1; 4408 return true; 4409 } 4410 } 4411 } 4412 4413 if (len == 5) { 4414 if ((s[0] == 'f' || s[0] == 'F') && 4415 (s[1] == 'a' || s[1] == 'A') && 4416 (s[2] == 'l' || s[2] == 'L') && 4417 (s[3] == 's' || s[3] == 'S') && 4418 (s[4] == 'e' || s[4] == 'E')) { 4419 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) { 4420 if (!canStringCoerce) { 4421 if (accessor != NULL) { 4422 accessor->reportError(accessorCookie, "Boolean types not allowed"); 4423 } 4424 return false; 4425 } 4426 } else { 4427 outValue->dataType = outValue->TYPE_INT_BOOLEAN; 4428 outValue->data = 0; 4429 return true; 4430 } 4431 } 4432 } 4433 4434 if ((attrType&ResTable_map::TYPE_ENUM) != 0) { 4435 const ssize_t p = getResourcePackageIndex(attrID); 4436 const bag_entry* bag; 4437 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 4438 //printf("Got %d for enum\n", cnt); 4439 if (cnt >= 0) { 4440 resource_name rname; 4441 while (cnt > 0) { 4442 if (!Res_INTERNALID(bag->map.name.ident)) { 4443 //printf("Trying attr #%08x\n", bag->map.name.ident); 4444 if (getResourceName(bag->map.name.ident, &rname)) { 4445 #if 0 4446 printf("Matching %s against %s (0x%08x)\n", 4447 String8(s, len).string(), 4448 String8(rname.name, rname.nameLen).string(), 4449 bag->map.name.ident); 4450 #endif 4451 if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) { 4452 outValue->dataType = bag->map.value.dataType; 4453 outValue->data = bag->map.value.data; 4454 unlockBag(bag); 4455 return true; 4456 } 4457 } 4458 4459 } 4460 bag++; 4461 cnt--; 4462 } 4463 unlockBag(bag); 4464 } 4465 4466 if (fromAccessor) { 4467 if (accessor->getAttributeEnum(attrID, s, len, outValue)) { 4468 return true; 4469 } 4470 } 4471 } 4472 4473 if ((attrType&ResTable_map::TYPE_FLAGS) != 0) { 4474 const ssize_t p = getResourcePackageIndex(attrID); 4475 const bag_entry* bag; 4476 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1; 4477 //printf("Got %d for flags\n", cnt); 4478 if (cnt >= 0) { 4479 bool failed = false; 4480 resource_name rname; 4481 outValue->dataType = Res_value::TYPE_INT_HEX; 4482 outValue->data = 0; 4483 const char16_t* end = s + len; 4484 const char16_t* pos = s; 4485 while (pos < end && !failed) { 4486 const char16_t* start = pos; 4487 pos++; 4488 while (pos < end && *pos != '|') { 4489 pos++; 4490 } 4491 //printf("Looking for: %s\n", String8(start, pos-start).string()); 4492 const bag_entry* bagi = bag; 4493 ssize_t i; 4494 for (i=0; i<cnt; i++, bagi++) { 4495 if (!Res_INTERNALID(bagi->map.name.ident)) { 4496 //printf("Trying attr #%08x\n", bagi->map.name.ident); 4497 if (getResourceName(bagi->map.name.ident, &rname)) { 4498 #if 0 4499 printf("Matching %s against %s (0x%08x)\n", 4500 String8(start,pos-start).string(), 4501 String8(rname.name, rname.nameLen).string(), 4502 bagi->map.name.ident); 4503 #endif 4504 if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) { 4505 outValue->data |= bagi->map.value.data; 4506 break; 4507 } 4508 } 4509 } 4510 } 4511 if (i >= cnt) { 4512 // Didn't find this flag identifier. 4513 failed = true; 4514 } 4515 if (pos < end) { 4516 pos++; 4517 } 4518 } 4519 unlockBag(bag); 4520 if (!failed) { 4521 //printf("Final flag value: 0x%lx\n", outValue->data); 4522 return true; 4523 } 4524 } 4525 4526 4527 if (fromAccessor) { 4528 if (accessor->getAttributeFlags(attrID, s, len, outValue)) { 4529 //printf("Final flag value: 0x%lx\n", outValue->data); 4530 return true; 4531 } 4532 } 4533 } 4534 4535 if ((attrType&ResTable_map::TYPE_STRING) == 0) { 4536 if (accessor != NULL) { 4537 accessor->reportError(accessorCookie, "String types not allowed"); 4538 } 4539 return false; 4540 } 4541 4542 // Generic string handling... 4543 outValue->dataType = outValue->TYPE_STRING; 4544 if (outString) { 4545 bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg); 4546 if (accessor != NULL) { 4547 accessor->reportError(accessorCookie, errorMsg); 4548 } 4549 return failed; 4550 } 4551 4552 return true; 4553 } 4554 4555 bool ResTable::collectString(String16* outString, 4556 const char16_t* s, size_t len, 4557 bool preserveSpaces, 4558 const char** outErrorMsg, 4559 bool append) 4560 { 4561 String16 tmp; 4562 4563 char quoted = 0; 4564 const char16_t* p = s; 4565 while (p < (s+len)) { 4566 while (p < (s+len)) { 4567 const char16_t c = *p; 4568 if (c == '\\') { 4569 break; 4570 } 4571 if (!preserveSpaces) { 4572 if (quoted == 0 && isspace16(c) 4573 && (c != ' ' || isspace16(*(p+1)))) { 4574 break; 4575 } 4576 if (c == '"' && (quoted == 0 || quoted == '"')) { 4577 break; 4578 } 4579 if (c == '\'' && (quoted == 0 || quoted == '\'')) { 4580 /* 4581 * In practice, when people write ' instead of \' 4582 * in a string, they are doing it by accident 4583 * instead of really meaning to use ' as a quoting 4584 * character. Warn them so they don't lose it. 4585 */ 4586 if (outErrorMsg) { 4587 *outErrorMsg = "Apostrophe not preceded by \\"; 4588 } 4589 return false; 4590 } 4591 } 4592 p++; 4593 } 4594 if (p < (s+len)) { 4595 if (p > s) { 4596 tmp.append(String16(s, p-s)); 4597 } 4598 if (!preserveSpaces && (*p == '"' || *p == '\'')) { 4599 if (quoted == 0) { 4600 quoted = *p; 4601 } else { 4602 quoted = 0; 4603 } 4604 p++; 4605 } else if (!preserveSpaces && isspace16(*p)) { 4606 // Space outside of a quote -- consume all spaces and 4607 // leave a single plain space char. 4608 tmp.append(String16(" ")); 4609 p++; 4610 while (p < (s+len) && isspace16(*p)) { 4611 p++; 4612 } 4613 } else if (*p == '\\') { 4614 p++; 4615 if (p < (s+len)) { 4616 switch (*p) { 4617 case 't': 4618 tmp.append(String16("\t")); 4619 break; 4620 case 'n': 4621 tmp.append(String16("\n")); 4622 break; 4623 case '#': 4624 tmp.append(String16("#")); 4625 break; 4626 case '@': 4627 tmp.append(String16("@")); 4628 break; 4629 case '?': 4630 tmp.append(String16("?")); 4631 break; 4632 case '"': 4633 tmp.append(String16("\"")); 4634 break; 4635 case '\'': 4636 tmp.append(String16("'")); 4637 break; 4638 case '\\': 4639 tmp.append(String16("\\")); 4640 break; 4641 case 'u': 4642 { 4643 char16_t chr = 0; 4644 int i = 0; 4645 while (i < 4 && p[1] != 0) { 4646 p++; 4647 i++; 4648 int c; 4649 if (*p >= '0' && *p <= '9') { 4650 c = *p - '0'; 4651 } else if (*p >= 'a' && *p <= 'f') { 4652 c = *p - 'a' + 10; 4653 } else if (*p >= 'A' && *p <= 'F') { 4654 c = *p - 'A' + 10; 4655 } else { 4656 if (outErrorMsg) { 4657 *outErrorMsg = "Bad character in \\u unicode escape sequence"; 4658 } 4659 return false; 4660 } 4661 chr = (chr<<4) | c; 4662 } 4663 tmp.append(String16(&chr, 1)); 4664 } break; 4665 default: 4666 // ignore unknown escape chars. 4667 break; 4668 } 4669 p++; 4670 } 4671 } 4672 len -= (p-s); 4673 s = p; 4674 } 4675 } 4676 4677 if (tmp.size() != 0) { 4678 if (len > 0) { 4679 tmp.append(String16(s, len)); 4680 } 4681 if (append) { 4682 outString->append(tmp); 4683 } else { 4684 outString->setTo(tmp); 4685 } 4686 } else { 4687 if (append) { 4688 outString->append(String16(s, len)); 4689 } else { 4690 outString->setTo(s, len); 4691 } 4692 } 4693 4694 return true; 4695 } 4696 4697 size_t ResTable::getBasePackageCount() const 4698 { 4699 if (mError != NO_ERROR) { 4700 return 0; 4701 } 4702 return mPackageGroups.size(); 4703 } 4704 4705 const char16_t* ResTable::getBasePackageName(size_t idx) const 4706 { 4707 if (mError != NO_ERROR) { 4708 return 0; 4709 } 4710 LOG_FATAL_IF(idx >= mPackageGroups.size(), 4711 "Requested package index %d past package count %d", 4712 (int)idx, (int)mPackageGroups.size()); 4713 return mPackageGroups[idx]->name.string(); 4714 } 4715 4716 uint32_t ResTable::getBasePackageId(size_t idx) const 4717 { 4718 if (mError != NO_ERROR) { 4719 return 0; 4720 } 4721 LOG_FATAL_IF(idx >= mPackageGroups.size(), 4722 "Requested package index %d past package count %d", 4723 (int)idx, (int)mPackageGroups.size()); 4724 return mPackageGroups[idx]->id; 4725 } 4726 4727 size_t ResTable::getTableCount() const 4728 { 4729 return mHeaders.size(); 4730 } 4731 4732 const ResStringPool* ResTable::getTableStringBlock(size_t index) const 4733 { 4734 return &mHeaders[index]->values; 4735 } 4736 4737 void* ResTable::getTableCookie(size_t index) const 4738 { 4739 return mHeaders[index]->cookie; 4740 } 4741 4742 void ResTable::getConfigurations(Vector<ResTable_config>* configs) const 4743 { 4744 const size_t I = mPackageGroups.size(); 4745 for (size_t i=0; i<I; i++) { 4746 const PackageGroup* packageGroup = mPackageGroups[i]; 4747 const size_t J = packageGroup->packages.size(); 4748 for (size_t j=0; j<J; j++) { 4749 const Package* package = packageGroup->packages[j]; 4750 const size_t K = package->types.size(); 4751 for (size_t k=0; k<K; k++) { 4752 const Type* type = package->types[k]; 4753 if (type == NULL) continue; 4754 const size_t L = type->configs.size(); 4755 for (size_t l=0; l<L; l++) { 4756 const ResTable_type* config = type->configs[l]; 4757 const ResTable_config* cfg = &config->config; 4758 // only insert unique 4759 const size_t M = configs->size(); 4760 size_t m; 4761 for (m=0; m<M; m++) { 4762 if (0 == (*configs)[m].compare(*cfg)) { 4763 break; 4764 } 4765 } 4766 // if we didn't find it 4767 if (m == M) { 4768 configs->add(*cfg); 4769 } 4770 } 4771 } 4772 } 4773 } 4774 } 4775 4776 void ResTable::getLocales(Vector<String8>* locales) const 4777 { 4778 Vector<ResTable_config> configs; 4779 ALOGV("calling getConfigurations"); 4780 getConfigurations(&configs); 4781 ALOGV("called getConfigurations size=%d", (int)configs.size()); 4782 const size_t I = configs.size(); 4783 for (size_t i=0; i<I; i++) { 4784 char locale[6]; 4785 configs[i].getLocale(locale); 4786 const size_t J = locales->size(); 4787 size_t j; 4788 for (j=0; j<J; j++) { 4789 if (0 == strcmp(locale, (*locales)[j].string())) { 4790 break; 4791 } 4792 } 4793 if (j == J) { 4794 locales->add(String8(locale)); 4795 } 4796 } 4797 } 4798 4799 ssize_t ResTable::getEntry( 4800 const Package* package, int typeIndex, int entryIndex, 4801 const ResTable_config* config, 4802 const ResTable_type** outType, const ResTable_entry** outEntry, 4803 const Type** outTypeClass) const 4804 { 4805 ALOGV("Getting entry from package %p\n", package); 4806 const ResTable_package* const pkg = package->package; 4807 4808 const Type* allTypes = package->getType(typeIndex); 4809 ALOGV("allTypes=%p\n", allTypes); 4810 if (allTypes == NULL) { 4811 ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex); 4812 return 0; 4813 } 4814 4815 if ((size_t)entryIndex >= allTypes->entryCount) { 4816 ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d", 4817 entryIndex, (int)allTypes->entryCount); 4818 return BAD_TYPE; 4819 } 4820 4821 const ResTable_type* type = NULL; 4822 uint32_t offset = ResTable_type::NO_ENTRY; 4823 ResTable_config bestConfig; 4824 memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up 4825 4826 const size_t NT = allTypes->configs.size(); 4827 for (size_t i=0; i<NT; i++) { 4828 const ResTable_type* const thisType = allTypes->configs[i]; 4829 if (thisType == NULL) continue; 4830 4831 ResTable_config thisConfig; 4832 thisConfig.copyFromDtoH(thisType->config); 4833 4834 TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n", 4835 entryIndex, typeIndex+1, dtohl(thisType->config.size), 4836 thisConfig.toString().string())); 4837 4838 // Check to make sure this one is valid for the current parameters. 4839 if (config && !thisConfig.match(*config)) { 4840 TABLE_GETENTRY(ALOGI("Does not match config!\n")); 4841 continue; 4842 } 4843 4844 // Check if there is the desired entry in this type. 4845 4846 const uint8_t* const end = ((const uint8_t*)thisType) 4847 + dtohl(thisType->header.size); 4848 const uint32_t* const eindex = (const uint32_t*) 4849 (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize)); 4850 4851 uint32_t thisOffset = dtohl(eindex[entryIndex]); 4852 if (thisOffset == ResTable_type::NO_ENTRY) { 4853 TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n")); 4854 continue; 4855 } 4856 4857 if (type != NULL) { 4858 // Check if this one is less specific than the last found. If so, 4859 // we will skip it. We check starting with things we most care 4860 // about to those we least care about. 4861 if (!thisConfig.isBetterThan(bestConfig, config)) { 4862 TABLE_GETENTRY(ALOGI("This config is worse than last!\n")); 4863 continue; 4864 } 4865 } 4866 4867 type = thisType; 4868 offset = thisOffset; 4869 bestConfig = thisConfig; 4870 TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n")); 4871 if (!config) break; 4872 } 4873 4874 if (type == NULL) { 4875 TABLE_GETENTRY(ALOGI("No value found for requested entry!\n")); 4876 return BAD_INDEX; 4877 } 4878 4879 offset += dtohl(type->entriesStart); 4880 TABLE_NOISY(aout << "Looking in resource table " << package->header->header 4881 << ", typeOff=" 4882 << (void*)(((const char*)type)-((const char*)package->header->header)) 4883 << ", offset=" << (void*)offset << endl); 4884 4885 if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) { 4886 ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x", 4887 offset, dtohl(type->header.size)); 4888 return BAD_TYPE; 4889 } 4890 if ((offset&0x3) != 0) { 4891 ALOGW("ResTable_entry at 0x%x is not on an integer boundary", 4892 offset); 4893 return BAD_TYPE; 4894 } 4895 4896 const ResTable_entry* const entry = (const ResTable_entry*) 4897 (((const uint8_t*)type) + offset); 4898 if (dtohs(entry->size) < sizeof(*entry)) { 4899 ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size)); 4900 return BAD_TYPE; 4901 } 4902 4903 *outType = type; 4904 *outEntry = entry; 4905 if (outTypeClass != NULL) { 4906 *outTypeClass = allTypes; 4907 } 4908 return offset + dtohs(entry->size); 4909 } 4910 4911 status_t ResTable::parsePackage(const ResTable_package* const pkg, 4912 const Header* const header, uint32_t idmap_id) 4913 { 4914 const uint8_t* base = (const uint8_t*)pkg; 4915 status_t err = validate_chunk(&pkg->header, sizeof(*pkg), 4916 header->dataEnd, "ResTable_package"); 4917 if (err != NO_ERROR) { 4918 return (mError=err); 4919 } 4920 4921 const size_t pkgSize = dtohl(pkg->header.size); 4922 4923 if (dtohl(pkg->typeStrings) >= pkgSize) { 4924 ALOGW("ResTable_package type strings at %p are past chunk size %p.", 4925 (void*)dtohl(pkg->typeStrings), (void*)pkgSize); 4926 return (mError=BAD_TYPE); 4927 } 4928 if ((dtohl(pkg->typeStrings)&0x3) != 0) { 4929 ALOGW("ResTable_package type strings at %p is not on an integer boundary.", 4930 (void*)dtohl(pkg->typeStrings)); 4931 return (mError=BAD_TYPE); 4932 } 4933 if (dtohl(pkg->keyStrings) >= pkgSize) { 4934 ALOGW("ResTable_package key strings at %p are past chunk size %p.", 4935 (void*)dtohl(pkg->keyStrings), (void*)pkgSize); 4936 return (mError=BAD_TYPE); 4937 } 4938 if ((dtohl(pkg->keyStrings)&0x3) != 0) { 4939 ALOGW("ResTable_package key strings at %p is not on an integer boundary.", 4940 (void*)dtohl(pkg->keyStrings)); 4941 return (mError=BAD_TYPE); 4942 } 4943 4944 Package* package = NULL; 4945 PackageGroup* group = NULL; 4946 uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id); 4947 // If at this point id == 0, pkg is an overlay package without a 4948 // corresponding idmap. During regular usage, overlay packages are 4949 // always loaded alongside their idmaps, but during idmap creation 4950 // the package is temporarily loaded by itself. 4951 if (id < 256) { 4952 4953 package = new Package(this, header, pkg); 4954 if (package == NULL) { 4955 return (mError=NO_MEMORY); 4956 } 4957 4958 size_t idx = mPackageMap[id]; 4959 if (idx == 0) { 4960 idx = mPackageGroups.size()+1; 4961 4962 char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)]; 4963 strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t)); 4964 group = new PackageGroup(this, String16(tmpName), id); 4965 if (group == NULL) { 4966 delete package; 4967 return (mError=NO_MEMORY); 4968 } 4969 4970 err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings), 4971 header->dataEnd-(base+dtohl(pkg->typeStrings))); 4972 if (err != NO_ERROR) { 4973 delete group; 4974 delete package; 4975 return (mError=err); 4976 } 4977 err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings), 4978 header->dataEnd-(base+dtohl(pkg->keyStrings))); 4979 if (err != NO_ERROR) { 4980 delete group; 4981 delete package; 4982 return (mError=err); 4983 } 4984 4985 //printf("Adding new package id %d at index %d\n", id, idx); 4986 err = mPackageGroups.add(group); 4987 if (err < NO_ERROR) { 4988 return (mError=err); 4989 } 4990 group->basePackage = package; 4991 4992 mPackageMap[id] = (uint8_t)idx; 4993 } else { 4994 group = mPackageGroups.itemAt(idx-1); 4995 if (group == NULL) { 4996 return (mError=UNKNOWN_ERROR); 4997 } 4998 } 4999 err = group->packages.add(package); 5000 if (err < NO_ERROR) { 5001 return (mError=err); 5002 } 5003 } else { 5004 LOG_ALWAYS_FATAL("Package id out of range"); 5005 return NO_ERROR; 5006 } 5007 5008 5009 // Iterate through all chunks. 5010 size_t curPackage = 0; 5011 5012 const ResChunk_header* chunk = 5013 (const ResChunk_header*)(((const uint8_t*)pkg) 5014 + dtohs(pkg->header.headerSize)); 5015 const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size); 5016 while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) && 5017 ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) { 5018 TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 5019 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 5020 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)))); 5021 const size_t csize = dtohl(chunk->size); 5022 const uint16_t ctype = dtohs(chunk->type); 5023 if (ctype == RES_TABLE_TYPE_SPEC_TYPE) { 5024 const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk); 5025 err = validate_chunk(&typeSpec->header, sizeof(*typeSpec), 5026 endPos, "ResTable_typeSpec"); 5027 if (err != NO_ERROR) { 5028 return (mError=err); 5029 } 5030 5031 const size_t typeSpecSize = dtohl(typeSpec->header.size); 5032 5033 LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n", 5034 (void*)(base-(const uint8_t*)chunk), 5035 dtohs(typeSpec->header.type), 5036 dtohs(typeSpec->header.headerSize), 5037 (void*)typeSize)); 5038 // look for block overrun or int overflow when multiplying by 4 5039 if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t)) 5040 || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount)) 5041 > typeSpecSize)) { 5042 ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.", 5043 (void*)(dtohs(typeSpec->header.headerSize) 5044 +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))), 5045 (void*)typeSpecSize); 5046 return (mError=BAD_TYPE); 5047 } 5048 5049 if (typeSpec->id == 0) { 5050 ALOGW("ResTable_type has an id of 0."); 5051 return (mError=BAD_TYPE); 5052 } 5053 5054 while (package->types.size() < typeSpec->id) { 5055 package->types.add(NULL); 5056 } 5057 Type* t = package->types[typeSpec->id-1]; 5058 if (t == NULL) { 5059 t = new Type(header, package, dtohl(typeSpec->entryCount)); 5060 package->types.editItemAt(typeSpec->id-1) = t; 5061 } else if (dtohl(typeSpec->entryCount) != t->entryCount) { 5062 ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d", 5063 (int)dtohl(typeSpec->entryCount), (int)t->entryCount); 5064 return (mError=BAD_TYPE); 5065 } 5066 t->typeSpecFlags = (const uint32_t*)( 5067 ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize)); 5068 t->typeSpec = typeSpec; 5069 5070 } else if (ctype == RES_TABLE_TYPE_TYPE) { 5071 const ResTable_type* type = (const ResTable_type*)(chunk); 5072 err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4, 5073 endPos, "ResTable_type"); 5074 if (err != NO_ERROR) { 5075 return (mError=err); 5076 } 5077 5078 const size_t typeSize = dtohl(type->header.size); 5079 5080 LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n", 5081 (void*)(base-(const uint8_t*)chunk), 5082 dtohs(type->header.type), 5083 dtohs(type->header.headerSize), 5084 (void*)typeSize)); 5085 if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount)) 5086 > typeSize) { 5087 ALOGW("ResTable_type entry index to %p extends beyond chunk end %p.", 5088 (void*)(dtohs(type->header.headerSize) 5089 +(sizeof(uint32_t)*dtohl(type->entryCount))), 5090 (void*)typeSize); 5091 return (mError=BAD_TYPE); 5092 } 5093 if (dtohl(type->entryCount) != 0 5094 && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) { 5095 ALOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.", 5096 (void*)dtohl(type->entriesStart), (void*)typeSize); 5097 return (mError=BAD_TYPE); 5098 } 5099 if (type->id == 0) { 5100 ALOGW("ResTable_type has an id of 0."); 5101 return (mError=BAD_TYPE); 5102 } 5103 5104 while (package->types.size() < type->id) { 5105 package->types.add(NULL); 5106 } 5107 Type* t = package->types[type->id-1]; 5108 if (t == NULL) { 5109 t = new Type(header, package, dtohl(type->entryCount)); 5110 package->types.editItemAt(type->id-1) = t; 5111 } else if (dtohl(type->entryCount) != t->entryCount) { 5112 ALOGW("ResTable_type entry count inconsistent: given %d, previously %d", 5113 (int)dtohl(type->entryCount), (int)t->entryCount); 5114 return (mError=BAD_TYPE); 5115 } 5116 5117 TABLE_GETENTRY( 5118 ResTable_config thisConfig; 5119 thisConfig.copyFromDtoH(type->config); 5120 ALOGI("Adding config to type %d: %s\n", 5121 type->id, thisConfig.toString().string())); 5122 t->configs.add(type); 5123 } else { 5124 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), 5125 endPos, "ResTable_package:unknown"); 5126 if (err != NO_ERROR) { 5127 return (mError=err); 5128 } 5129 } 5130 chunk = (const ResChunk_header*) 5131 (((const uint8_t*)chunk) + csize); 5132 } 5133 5134 if (group->typeCount == 0) { 5135 group->typeCount = package->types.size(); 5136 } 5137 5138 return NO_ERROR; 5139 } 5140 5141 status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc, 5142 void** outData, size_t* outSize) const 5143 { 5144 // see README for details on the format of map 5145 if (mPackageGroups.size() == 0) { 5146 return UNKNOWN_ERROR; 5147 } 5148 if (mPackageGroups[0]->packages.size() == 0) { 5149 return UNKNOWN_ERROR; 5150 } 5151 5152 Vector<Vector<uint32_t> > map; 5153 const PackageGroup* pg = mPackageGroups[0]; 5154 const Package* pkg = pg->packages[0]; 5155 size_t typeCount = pkg->types.size(); 5156 // starting size is header + first item (number of types in map) 5157 *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t); 5158 const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name); 5159 const uint32_t pkg_id = pkg->package->id << 24; 5160 5161 for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) { 5162 ssize_t offset = -1; 5163 const Type* typeConfigs = pkg->getType(typeIndex); 5164 ssize_t mapIndex = map.add(); 5165 if (mapIndex < 0) { 5166 return NO_MEMORY; 5167 } 5168 Vector<uint32_t>& vector = map.editItemAt(mapIndex); 5169 for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) { 5170 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24)) 5171 | (0x00ff0000 & ((typeIndex+1)<<16)) 5172 | (0x0000ffff & (entryIndex)); 5173 resource_name resName; 5174 if (!this->getResourceName(resID, &resName)) { 5175 ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID); 5176 continue; 5177 } 5178 5179 const String16 overlayType(resName.type, resName.typeLen); 5180 const String16 overlayName(resName.name, resName.nameLen); 5181 uint32_t overlayResID = overlay.identifierForName(overlayName.string(), 5182 overlayName.size(), 5183 overlayType.string(), 5184 overlayType.size(), 5185 overlayPackage.string(), 5186 overlayPackage.size()); 5187 if (overlayResID != 0) { 5188 // overlay package has package ID == 0, use original package's ID instead 5189 overlayResID |= pkg_id; 5190 } 5191 vector.push(overlayResID); 5192 if (overlayResID != 0 && offset == -1) { 5193 offset = Res_GETENTRY(resID); 5194 } 5195 #if 0 5196 if (overlayResID != 0) { 5197 ALOGD("%s/%s 0x%08x -> 0x%08x\n", 5198 String8(String16(resName.type)).string(), 5199 String8(String16(resName.name)).string(), 5200 resID, overlayResID); 5201 } 5202 #endif 5203 } 5204 5205 if (offset != -1) { 5206 // shave off leading and trailing entries which lack overlay values 5207 vector.removeItemsAt(0, offset); 5208 vector.insertAt((uint32_t)offset, 0, 1); 5209 while (vector.top() == 0) { 5210 vector.pop(); 5211 } 5212 // reserve space for number and offset of entries, and the actual entries 5213 *outSize += (2 + vector.size()) * sizeof(uint32_t); 5214 } else { 5215 // no entries of current type defined in overlay package 5216 vector.clear(); 5217 // reserve space for type offset 5218 *outSize += 1 * sizeof(uint32_t); 5219 } 5220 } 5221 5222 if ((*outData = malloc(*outSize)) == NULL) { 5223 return NO_MEMORY; 5224 } 5225 uint32_t* data = (uint32_t*)*outData; 5226 *data++ = htodl(IDMAP_MAGIC); 5227 *data++ = htodl(originalCrc); 5228 *data++ = htodl(overlayCrc); 5229 const size_t mapSize = map.size(); 5230 *data++ = htodl(mapSize); 5231 size_t offset = mapSize; 5232 for (size_t i = 0; i < mapSize; ++i) { 5233 const Vector<uint32_t>& vector = map.itemAt(i); 5234 const size_t N = vector.size(); 5235 if (N == 0) { 5236 *data++ = htodl(0); 5237 } else { 5238 offset++; 5239 *data++ = htodl(offset); 5240 offset += N; 5241 } 5242 } 5243 for (size_t i = 0; i < mapSize; ++i) { 5244 const Vector<uint32_t>& vector = map.itemAt(i); 5245 const size_t N = vector.size(); 5246 if (N == 0) { 5247 continue; 5248 } 5249 *data++ = htodl(N - 1); // do not count the offset (which is vector's first element) 5250 for (size_t j = 0; j < N; ++j) { 5251 const uint32_t& overlayResID = vector.itemAt(j); 5252 *data++ = htodl(overlayResID); 5253 } 5254 } 5255 5256 return NO_ERROR; 5257 } 5258 5259 bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes, 5260 uint32_t* pOriginalCrc, uint32_t* pOverlayCrc) 5261 { 5262 const uint32_t* map = (const uint32_t*)idmap; 5263 if (!assertIdmapHeader(map, sizeBytes)) { 5264 return false; 5265 } 5266 *pOriginalCrc = map[1]; 5267 *pOverlayCrc = map[2]; 5268 return true; 5269 } 5270 5271 5272 #ifndef HAVE_ANDROID_OS 5273 #define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string()) 5274 5275 #define CHAR16_ARRAY_EQ(constant, var, len) \ 5276 ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len)))) 5277 5278 void print_complex(uint32_t complex, bool isFraction) 5279 { 5280 const float MANTISSA_MULT = 5281 1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT); 5282 const float RADIX_MULTS[] = { 5283 1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT, 5284 1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT 5285 }; 5286 5287 float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK 5288 <<Res_value::COMPLEX_MANTISSA_SHIFT)) 5289 * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT) 5290 & Res_value::COMPLEX_RADIX_MASK]; 5291 printf("%f", value); 5292 5293 if (!isFraction) { 5294 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) { 5295 case Res_value::COMPLEX_UNIT_PX: printf("px"); break; 5296 case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break; 5297 case Res_value::COMPLEX_UNIT_SP: printf("sp"); break; 5298 case Res_value::COMPLEX_UNIT_PT: printf("pt"); break; 5299 case Res_value::COMPLEX_UNIT_IN: printf("in"); break; 5300 case Res_value::COMPLEX_UNIT_MM: printf("mm"); break; 5301 default: printf(" (unknown unit)"); break; 5302 } 5303 } else { 5304 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) { 5305 case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break; 5306 case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break; 5307 default: printf(" (unknown unit)"); break; 5308 } 5309 } 5310 } 5311 5312 // Normalize a string for output 5313 String8 ResTable::normalizeForOutput( const char *input ) 5314 { 5315 String8 ret; 5316 char buff[2]; 5317 buff[1] = '\0'; 5318 5319 while (*input != '\0') { 5320 switch (*input) { 5321 // All interesting characters are in the ASCII zone, so we are making our own lives 5322 // easier by scanning the string one byte at a time. 5323 case '\\': 5324 ret += "\\\\"; 5325 break; 5326 case '\n': 5327 ret += "\\n"; 5328 break; 5329 case '"': 5330 ret += "\\\""; 5331 break; 5332 default: 5333 buff[0] = *input; 5334 ret += buff; 5335 break; 5336 } 5337 5338 input++; 5339 } 5340 5341 return ret; 5342 } 5343 5344 void ResTable::print_value(const Package* pkg, const Res_value& value) const 5345 { 5346 if (value.dataType == Res_value::TYPE_NULL) { 5347 printf("(null)\n"); 5348 } else if (value.dataType == Res_value::TYPE_REFERENCE) { 5349 printf("(reference) 0x%08x\n", value.data); 5350 } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) { 5351 printf("(attribute) 0x%08x\n", value.data); 5352 } else if (value.dataType == Res_value::TYPE_STRING) { 5353 size_t len; 5354 const char* str8 = pkg->header->values.string8At( 5355 value.data, &len); 5356 if (str8 != NULL) { 5357 printf("(string8) \"%s\"\n", normalizeForOutput(str8).string()); 5358 } else { 5359 const char16_t* str16 = pkg->header->values.stringAt( 5360 value.data, &len); 5361 if (str16 != NULL) { 5362 printf("(string16) \"%s\"\n", 5363 normalizeForOutput(String8(str16, len).string()).string()); 5364 } else { 5365 printf("(string) null\n"); 5366 } 5367 } 5368 } else if (value.dataType == Res_value::TYPE_FLOAT) { 5369 printf("(float) %g\n", *(const float*)&value.data); 5370 } else if (value.dataType == Res_value::TYPE_DIMENSION) { 5371 printf("(dimension) "); 5372 print_complex(value.data, false); 5373 printf("\n"); 5374 } else if (value.dataType == Res_value::TYPE_FRACTION) { 5375 printf("(fraction) "); 5376 print_complex(value.data, true); 5377 printf("\n"); 5378 } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT 5379 || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) { 5380 printf("(color) #%08x\n", value.data); 5381 } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) { 5382 printf("(boolean) %s\n", value.data ? "true" : "false"); 5383 } else if (value.dataType >= Res_value::TYPE_FIRST_INT 5384 || value.dataType <= Res_value::TYPE_LAST_INT) { 5385 printf("(int) 0x%08x or %d\n", value.data, value.data); 5386 } else { 5387 printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n", 5388 (int)value.dataType, (int)value.data, 5389 (int)value.size, (int)value.res0); 5390 } 5391 } 5392 5393 void ResTable::print(bool inclValues) const 5394 { 5395 if (mError != 0) { 5396 printf("mError=0x%x (%s)\n", mError, strerror(mError)); 5397 } 5398 #if 0 5399 printf("mParams=%c%c-%c%c,\n", 5400 mParams.language[0], mParams.language[1], 5401 mParams.country[0], mParams.country[1]); 5402 #endif 5403 size_t pgCount = mPackageGroups.size(); 5404 printf("Package Groups (%d)\n", (int)pgCount); 5405 for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) { 5406 const PackageGroup* pg = mPackageGroups[pgIndex]; 5407 printf("Package Group %d id=%d packageCount=%d name=%s\n", 5408 (int)pgIndex, pg->id, (int)pg->packages.size(), 5409 String8(pg->name).string()); 5410 5411 size_t pkgCount = pg->packages.size(); 5412 for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) { 5413 const Package* pkg = pg->packages[pkgIndex]; 5414 size_t typeCount = pkg->types.size(); 5415 printf(" Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex, 5416 pkg->package->id, String8(String16(pkg->package->name)).string(), 5417 (int)typeCount); 5418 for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) { 5419 const Type* typeConfigs = pkg->getType(typeIndex); 5420 if (typeConfigs == NULL) { 5421 printf(" type %d NULL\n", (int)typeIndex); 5422 continue; 5423 } 5424 const size_t NTC = typeConfigs->configs.size(); 5425 printf(" type %d configCount=%d entryCount=%d\n", 5426 (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount); 5427 if (typeConfigs->typeSpecFlags != NULL) { 5428 for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) { 5429 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24)) 5430 | (0x00ff0000 & ((typeIndex+1)<<16)) 5431 | (0x0000ffff & (entryIndex)); 5432 resource_name resName; 5433 if (this->getResourceName(resID, &resName)) { 5434 printf(" spec resource 0x%08x %s:%s/%s: flags=0x%08x\n", 5435 resID, 5436 CHAR16_TO_CSTR(resName.package, resName.packageLen), 5437 CHAR16_TO_CSTR(resName.type, resName.typeLen), 5438 CHAR16_TO_CSTR(resName.name, resName.nameLen), 5439 dtohl(typeConfigs->typeSpecFlags[entryIndex])); 5440 } else { 5441 printf(" INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID); 5442 } 5443 } 5444 } 5445 for (size_t configIndex=0; configIndex<NTC; configIndex++) { 5446 const ResTable_type* type = typeConfigs->configs[configIndex]; 5447 if ((((uint64_t)type)&0x3) != 0) { 5448 printf(" NON-INTEGER ResTable_type ADDRESS: %p\n", type); 5449 continue; 5450 } 5451 String8 configStr = type->config.toString(); 5452 printf(" config %s:\n", configStr.size() > 0 5453 ? configStr.string() : "(default)"); 5454 size_t entryCount = dtohl(type->entryCount); 5455 uint32_t entriesStart = dtohl(type->entriesStart); 5456 if ((entriesStart&0x3) != 0) { 5457 printf(" NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart); 5458 continue; 5459 } 5460 uint32_t typeSize = dtohl(type->header.size); 5461 if ((typeSize&0x3) != 0) { 5462 printf(" NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize); 5463 continue; 5464 } 5465 for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) { 5466 5467 const uint8_t* const end = ((const uint8_t*)type) 5468 + dtohl(type->header.size); 5469 const uint32_t* const eindex = (const uint32_t*) 5470 (((const uint8_t*)type) + dtohs(type->header.headerSize)); 5471 5472 uint32_t thisOffset = dtohl(eindex[entryIndex]); 5473 if (thisOffset == ResTable_type::NO_ENTRY) { 5474 continue; 5475 } 5476 5477 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24)) 5478 | (0x00ff0000 & ((typeIndex+1)<<16)) 5479 | (0x0000ffff & (entryIndex)); 5480 resource_name resName; 5481 if (this->getResourceName(resID, &resName)) { 5482 printf(" resource 0x%08x %s:%s/%s: ", resID, 5483 CHAR16_TO_CSTR(resName.package, resName.packageLen), 5484 CHAR16_TO_CSTR(resName.type, resName.typeLen), 5485 CHAR16_TO_CSTR(resName.name, resName.nameLen)); 5486 } else { 5487 printf(" INVALID RESOURCE 0x%08x: ", resID); 5488 } 5489 if ((thisOffset&0x3) != 0) { 5490 printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset); 5491 continue; 5492 } 5493 if ((thisOffset+sizeof(ResTable_entry)) > typeSize) { 5494 printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n", 5495 (void*)entriesStart, (void*)thisOffset, 5496 (void*)typeSize); 5497 continue; 5498 } 5499 5500 const ResTable_entry* ent = (const ResTable_entry*) 5501 (((const uint8_t*)type) + entriesStart + thisOffset); 5502 if (((entriesStart + thisOffset)&0x3) != 0) { 5503 printf("NON-INTEGER ResTable_entry OFFSET: %p\n", 5504 (void*)(entriesStart + thisOffset)); 5505 continue; 5506 } 5507 5508 uint16_t esize = dtohs(ent->size); 5509 if ((esize&0x3) != 0) { 5510 printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize); 5511 continue; 5512 } 5513 if ((thisOffset+esize) > typeSize) { 5514 printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n", 5515 (void*)entriesStart, (void*)thisOffset, 5516 (void*)esize, (void*)typeSize); 5517 continue; 5518 } 5519 5520 const Res_value* valuePtr = NULL; 5521 const ResTable_map_entry* bagPtr = NULL; 5522 Res_value value; 5523 if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) { 5524 printf("<bag>"); 5525 bagPtr = (const ResTable_map_entry*)ent; 5526 } else { 5527 valuePtr = (const Res_value*) 5528 (((const uint8_t*)ent) + esize); 5529 value.copyFrom_dtoh(*valuePtr); 5530 printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)", 5531 (int)value.dataType, (int)value.data, 5532 (int)value.size, (int)value.res0); 5533 } 5534 5535 if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) { 5536 printf(" (PUBLIC)"); 5537 } 5538 printf("\n"); 5539 5540 if (inclValues) { 5541 if (valuePtr != NULL) { 5542 printf(" "); 5543 print_value(pkg, value); 5544 } else if (bagPtr != NULL) { 5545 const int N = dtohl(bagPtr->count); 5546 const uint8_t* baseMapPtr = (const uint8_t*)ent; 5547 size_t mapOffset = esize; 5548 const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset); 5549 printf(" Parent=0x%08x, Count=%d\n", 5550 dtohl(bagPtr->parent.ident), N); 5551 for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) { 5552 printf(" #%i (Key=0x%08x): ", 5553 i, dtohl(mapPtr->name.ident)); 5554 value.copyFrom_dtoh(mapPtr->value); 5555 print_value(pkg, value); 5556 const size_t size = dtohs(mapPtr->value.size); 5557 mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value); 5558 mapPtr = (ResTable_map*)(baseMapPtr+mapOffset); 5559 } 5560 } 5561 } 5562 } 5563 } 5564 } 5565 } 5566 } 5567 } 5568 5569 #endif // HAVE_ANDROID_OS 5570 5571 } // namespace android 5572