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
printToLogFunc(void * cookie,const char * txt)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.
isspace16(char16_t c)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.
strcpy16_dtoh(uint16_t * dst,const uint16_t * src,size_t avail)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
validate_chunk(const ResChunk_header * chunk,size_t minSize,const uint8_t * dataEnd,const char * name)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
copyFrom_dtoh(const Res_value & src)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
deviceToFile()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
fileToDevice()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
serializedSize()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
serialize()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
serialize(void * outData)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
deserializeInternal(const void * inData,Res_png_9patch * outData)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
assertIdmapHeader(const uint32_t * map,size_t sizeBytes)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
idmapLookup(const uint32_t * map,size_t sizeBytes,uint32_t key,uint32_t * outValue)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
getIdmapPackageId(const uint32_t * map,size_t mapSize,uint32_t * outId)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
deserialize(const void * inData)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
ResStringPool()310 ResStringPool::ResStringPool()
311 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
312 {
313 }
314
ResStringPool(const void * data,size_t size,bool copyData)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
~ResStringPool()321 ResStringPool::~ResStringPool()
322 {
323 uninit();
324 }
325
setTo(const void * data,size_t size,bool copyData)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
getError() const501 status_t ResStringPool::getError() const
502 {
503 return mError;
504 }
505
uninit()506 void ResStringPool::uninit()
507 {
508 mError = NO_INIT;
509 if (mHeader != NULL && mCache != NULL) {
510 for (size_t x = 0; x < mHeader->stringCount; x++) {
511 if (mCache[x] != NULL) {
512 free(mCache[x]);
513 mCache[x] = NULL;
514 }
515 }
516 free(mCache);
517 mCache = NULL;
518 }
519 if (mOwnedData) {
520 free(mOwnedData);
521 mOwnedData = 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
decodeLength(const char16_t ** str)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
decodeLength(const uint8_t ** str)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
stringAt(size_t idx,size_t * u16len) const569 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
string8At(size_t idx,size_t * outLen) const634 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
string8ObjectAt(size_t idx) const661 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
styleAt(const ResStringPool_ref & ref) const671 const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
672 {
673 return styleAt(ref.index);
674 }
675
styleAt(size_t idx) const676 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
indexOfString(const char16_t * str,size_t strLen) const691 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
size() const745 size_t ResStringPool::size() const
746 {
747 return (mError == NO_ERROR) ? mHeader->stringCount : 0;
748 }
749
styleCount() const750 size_t ResStringPool::styleCount() const
751 {
752 return (mError == NO_ERROR) ? mHeader->styleCount : 0;
753 }
754
bytes() const755 size_t ResStringPool::bytes() const
756 {
757 return (mError == NO_ERROR) ? mHeader->header.size : 0;
758 }
759
isSorted() const760 bool ResStringPool::isSorted() const
761 {
762 return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
763 }
764
isUTF8() const765 bool ResStringPool::isUTF8() const
766 {
767 return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
768 }
769
770 // --------------------------------------------------------------------
771 // --------------------------------------------------------------------
772 // --------------------------------------------------------------------
773
ResXMLParser(const ResXMLTree & tree)774 ResXMLParser::ResXMLParser(const ResXMLTree& tree)
775 : mTree(tree), mEventCode(BAD_DOCUMENT)
776 {
777 }
778
restart()779 void ResXMLParser::restart()
780 {
781 mCurNode = NULL;
782 mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
783 }
getStrings() const784 const ResStringPool& ResXMLParser::getStrings() const
785 {
786 return mTree.mStrings;
787 }
788
getEventType() const789 ResXMLParser::event_code_t ResXMLParser::getEventType() const
790 {
791 return mEventCode;
792 }
793
next()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
getCommentID() const806 int32_t ResXMLParser::getCommentID() const
807 {
808 return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
809 }
810
getComment(size_t * outLen) const811 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
getLineNumber() const817 uint32_t ResXMLParser::getLineNumber() const
818 {
819 return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
820 }
821
getTextID() const822 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
getText(size_t * outLen) const830 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
getTextValue(Res_value * outValue) const836 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
getNamespacePrefixID() const845 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
getNamespacePrefix(size_t * outLen) const853 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
getNamespaceUriID() const860 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
getNamespaceUri(size_t * outLen) const868 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
getElementNamespaceID() const875 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
getElementNamespace(size_t * outLen) const886 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
getElementNameID() const892 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
getElementName(size_t * outLen) const903 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
getAttributeCount() const909 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
getAttributeNamespaceID(size_t idx) const917 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
getAttributeNamespace(size_t idx,size_t * outLen) const932 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
getAttributeNameID(size_t idx) const940 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
getAttributeName(size_t idx,size_t * outLen) const955 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
getAttributeNameResID(size_t idx) const963 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
getAttributeValueStringID(size_t idx) const972 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
getAttributeStringValue(size_t idx,size_t * outLen) const987 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
getAttributeDataType(size_t idx) const994 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
getAttributeData(size_t idx) const1009 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
getAttributeValue(size_t idx,Res_value * outValue) const1024 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
indexOfAttribute(const char * ns,const char * attr) const1040 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
indexOfAttribute(const char16_t * ns,size_t nsLen,const char16_t * attr,size_t attrLen) const1048 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
indexOfID() const1076 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
indexOfClass() const1085 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
indexOfStyle() const1094 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
nextNode()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
getPosition(ResXMLParser::ResXMLPosition * pos) const1166 void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1167 {
1168 pos->eventCode = mEventCode;
1169 pos->curNode = mCurNode;
1170 pos->curExt = mCurExt;
1171 }
1172
setPosition(const ResXMLParser::ResXMLPosition & pos)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
ResXMLTree()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
ResXMLTree(const void * data,size_t size,bool copyData)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
~ResXMLTree()1201 ResXMLTree::~ResXMLTree()
1202 {
1203 //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1204 uninit();
1205 }
1206
setTo(const void * data,size_t size,bool copyData)1207 status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1208 {
1209 uninit();
1210 mEventCode = START_DOCUMENT;
1211
1212 if (!data || !size) {
1213 return (mError=BAD_TYPE);
1214 }
1215
1216 if (copyData) {
1217 mOwnedData = malloc(size);
1218 if (mOwnedData == NULL) {
1219 return (mError=NO_MEMORY);
1220 }
1221 memcpy(mOwnedData, data, size);
1222 data = mOwnedData;
1223 }
1224
1225 mHeader = (const ResXMLTree_header*)data;
1226 mSize = dtohl(mHeader->header.size);
1227 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1228 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1229 (int)dtohs(mHeader->header.headerSize),
1230 (int)dtohl(mHeader->header.size), (int)size);
1231 mError = BAD_TYPE;
1232 restart();
1233 return mError;
1234 }
1235 mDataEnd = ((const uint8_t*)mHeader) + mSize;
1236
1237 mStrings.uninit();
1238 mRootNode = NULL;
1239 mResIds = NULL;
1240 mNumResIds = 0;
1241
1242 // First look for a couple interesting chunks: the string block
1243 // and first XML node.
1244 const ResChunk_header* chunk =
1245 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1246 const ResChunk_header* lastChunk = chunk;
1247 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1248 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1249 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1250 if (err != NO_ERROR) {
1251 mError = err;
1252 goto done;
1253 }
1254 const uint16_t type = dtohs(chunk->type);
1255 const size_t size = dtohl(chunk->size);
1256 XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1257 (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1258 if (type == RES_STRING_POOL_TYPE) {
1259 mStrings.setTo(chunk, size);
1260 } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1261 mResIds = (const uint32_t*)
1262 (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1263 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1264 } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1265 && type <= RES_XML_LAST_CHUNK_TYPE) {
1266 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1267 mError = BAD_TYPE;
1268 goto done;
1269 }
1270 mCurNode = (const ResXMLTree_node*)lastChunk;
1271 if (nextNode() == BAD_DOCUMENT) {
1272 mError = BAD_TYPE;
1273 goto done;
1274 }
1275 mRootNode = mCurNode;
1276 mRootExt = mCurExt;
1277 mRootCode = mEventCode;
1278 break;
1279 } else {
1280 XML_NOISY(printf("Skipping unknown chunk!\n"));
1281 }
1282 lastChunk = chunk;
1283 chunk = (const ResChunk_header*)
1284 (((const uint8_t*)chunk) + size);
1285 }
1286
1287 if (mRootNode == NULL) {
1288 ALOGW("Bad XML block: no root element node found\n");
1289 mError = BAD_TYPE;
1290 goto done;
1291 }
1292
1293 mError = mStrings.getError();
1294
1295 done:
1296 restart();
1297 return mError;
1298 }
1299
getError() const1300 status_t ResXMLTree::getError() const
1301 {
1302 return mError;
1303 }
1304
uninit()1305 void ResXMLTree::uninit()
1306 {
1307 mError = NO_INIT;
1308 mStrings.uninit();
1309 if (mOwnedData) {
1310 free(mOwnedData);
1311 mOwnedData = NULL;
1312 }
1313 restart();
1314 }
1315
validateNode(const ResXMLTree_node * node) const1316 status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1317 {
1318 const uint16_t eventCode = dtohs(node->header.type);
1319
1320 status_t err = validate_chunk(
1321 &node->header, sizeof(ResXMLTree_node),
1322 mDataEnd, "ResXMLTree_node");
1323
1324 if (err >= NO_ERROR) {
1325 // Only perform additional validation on START nodes
1326 if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1327 return NO_ERROR;
1328 }
1329
1330 const uint16_t headerSize = dtohs(node->header.headerSize);
1331 const uint32_t size = dtohl(node->header.size);
1332 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1333 (((const uint8_t*)node) + headerSize);
1334 // check for sensical values pulled out of the stream so far...
1335 if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1336 && ((void*)attrExt > (void*)node)) {
1337 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1338 * dtohs(attrExt->attributeCount);
1339 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1340 return NO_ERROR;
1341 }
1342 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1343 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1344 (unsigned int)(size-headerSize));
1345 }
1346 else {
1347 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1348 (unsigned int)headerSize, (unsigned int)size);
1349 }
1350 return BAD_TYPE;
1351 }
1352
1353 return err;
1354
1355 #if 0
1356 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1357
1358 const uint16_t headerSize = dtohs(node->header.headerSize);
1359 const uint32_t size = dtohl(node->header.size);
1360
1361 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1362 if (size >= headerSize) {
1363 if (((const uint8_t*)node) <= (mDataEnd-size)) {
1364 if (!isStart) {
1365 return NO_ERROR;
1366 }
1367 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1368 <= (size-headerSize)) {
1369 return NO_ERROR;
1370 }
1371 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1372 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1373 (int)(size-headerSize));
1374 return BAD_TYPE;
1375 }
1376 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1377 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1378 return BAD_TYPE;
1379 }
1380 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1381 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1382 (int)headerSize, (int)size);
1383 return BAD_TYPE;
1384 }
1385 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1386 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1387 (int)headerSize);
1388 return BAD_TYPE;
1389 #endif
1390 }
1391
1392 // --------------------------------------------------------------------
1393 // --------------------------------------------------------------------
1394 // --------------------------------------------------------------------
1395
copyFromDeviceNoSwap(const ResTable_config & o)1396 void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1397 const size_t size = dtohl(o.size);
1398 if (size >= sizeof(ResTable_config)) {
1399 *this = o;
1400 } else {
1401 memcpy(this, &o, size);
1402 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1403 }
1404 }
1405
copyFromDtoH(const ResTable_config & o)1406 void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1407 copyFromDeviceNoSwap(o);
1408 size = sizeof(ResTable_config);
1409 mcc = dtohs(mcc);
1410 mnc = dtohs(mnc);
1411 density = dtohs(density);
1412 screenWidth = dtohs(screenWidth);
1413 screenHeight = dtohs(screenHeight);
1414 sdkVersion = dtohs(sdkVersion);
1415 minorVersion = dtohs(minorVersion);
1416 smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1417 screenWidthDp = dtohs(screenWidthDp);
1418 screenHeightDp = dtohs(screenHeightDp);
1419 }
1420
swapHtoD()1421 void ResTable_config::swapHtoD() {
1422 size = htodl(size);
1423 mcc = htods(mcc);
1424 mnc = htods(mnc);
1425 density = htods(density);
1426 screenWidth = htods(screenWidth);
1427 screenHeight = htods(screenHeight);
1428 sdkVersion = htods(sdkVersion);
1429 minorVersion = htods(minorVersion);
1430 smallestScreenWidthDp = htods(smallestScreenWidthDp);
1431 screenWidthDp = htods(screenWidthDp);
1432 screenHeightDp = htods(screenHeightDp);
1433 }
1434
compare(const ResTable_config & o) const1435 int ResTable_config::compare(const ResTable_config& o) const {
1436 int32_t diff = (int32_t)(imsi - o.imsi);
1437 if (diff != 0) return diff;
1438 diff = (int32_t)(locale - o.locale);
1439 if (diff != 0) return diff;
1440 diff = (int32_t)(screenType - o.screenType);
1441 if (diff != 0) return diff;
1442 diff = (int32_t)(input - o.input);
1443 if (diff != 0) return diff;
1444 diff = (int32_t)(screenSize - o.screenSize);
1445 if (diff != 0) return diff;
1446 diff = (int32_t)(version - o.version);
1447 if (diff != 0) return diff;
1448 diff = (int32_t)(screenLayout - o.screenLayout);
1449 if (diff != 0) return diff;
1450 diff = (int32_t)(uiMode - o.uiMode);
1451 if (diff != 0) return diff;
1452 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1453 if (diff != 0) return diff;
1454 diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1455 return (int)diff;
1456 }
1457
compareLogical(const ResTable_config & o) const1458 int ResTable_config::compareLogical(const ResTable_config& o) const {
1459 if (mcc != o.mcc) {
1460 return mcc < o.mcc ? -1 : 1;
1461 }
1462 if (mnc != o.mnc) {
1463 return mnc < o.mnc ? -1 : 1;
1464 }
1465 if (language[0] != o.language[0]) {
1466 return language[0] < o.language[0] ? -1 : 1;
1467 }
1468 if (language[1] != o.language[1]) {
1469 return language[1] < o.language[1] ? -1 : 1;
1470 }
1471 if (country[0] != o.country[0]) {
1472 return country[0] < o.country[0] ? -1 : 1;
1473 }
1474 if (country[1] != o.country[1]) {
1475 return country[1] < o.country[1] ? -1 : 1;
1476 }
1477 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1478 return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1479 }
1480 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1481 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1482 }
1483 if (screenWidthDp != o.screenWidthDp) {
1484 return screenWidthDp < o.screenWidthDp ? -1 : 1;
1485 }
1486 if (screenHeightDp != o.screenHeightDp) {
1487 return screenHeightDp < o.screenHeightDp ? -1 : 1;
1488 }
1489 if (screenWidth != o.screenWidth) {
1490 return screenWidth < o.screenWidth ? -1 : 1;
1491 }
1492 if (screenHeight != o.screenHeight) {
1493 return screenHeight < o.screenHeight ? -1 : 1;
1494 }
1495 if (density != o.density) {
1496 return density < o.density ? -1 : 1;
1497 }
1498 if (orientation != o.orientation) {
1499 return orientation < o.orientation ? -1 : 1;
1500 }
1501 if (touchscreen != o.touchscreen) {
1502 return touchscreen < o.touchscreen ? -1 : 1;
1503 }
1504 if (input != o.input) {
1505 return input < o.input ? -1 : 1;
1506 }
1507 if (screenLayout != o.screenLayout) {
1508 return screenLayout < o.screenLayout ? -1 : 1;
1509 }
1510 if (uiMode != o.uiMode) {
1511 return uiMode < o.uiMode ? -1 : 1;
1512 }
1513 if (version != o.version) {
1514 return version < o.version ? -1 : 1;
1515 }
1516 return 0;
1517 }
1518
diff(const ResTable_config & o) const1519 int ResTable_config::diff(const ResTable_config& o) const {
1520 int diffs = 0;
1521 if (mcc != o.mcc) diffs |= CONFIG_MCC;
1522 if (mnc != o.mnc) diffs |= CONFIG_MNC;
1523 if (locale != o.locale) diffs |= CONFIG_LOCALE;
1524 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1525 if (density != o.density) diffs |= CONFIG_DENSITY;
1526 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1527 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1528 diffs |= CONFIG_KEYBOARD_HIDDEN;
1529 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1530 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1531 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1532 if (version != o.version) diffs |= CONFIG_VERSION;
1533 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1534 if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1535 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1536 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1537 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1538 return diffs;
1539 }
1540
isMoreSpecificThan(const ResTable_config & o) const1541 bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1542 // The order of the following tests defines the importance of one
1543 // configuration parameter over another. Those tests first are more
1544 // important, trumping any values in those following them.
1545 if (imsi || o.imsi) {
1546 if (mcc != o.mcc) {
1547 if (!mcc) return false;
1548 if (!o.mcc) return true;
1549 }
1550
1551 if (mnc != o.mnc) {
1552 if (!mnc) return false;
1553 if (!o.mnc) return true;
1554 }
1555 }
1556
1557 if (locale || o.locale) {
1558 if (language[0] != o.language[0]) {
1559 if (!language[0]) return false;
1560 if (!o.language[0]) return true;
1561 }
1562
1563 if (country[0] != o.country[0]) {
1564 if (!country[0]) return false;
1565 if (!o.country[0]) return true;
1566 }
1567 }
1568
1569 if (screenLayout || o.screenLayout) {
1570 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1571 if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1572 if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1573 }
1574 }
1575
1576 if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1577 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1578 if (!smallestScreenWidthDp) return false;
1579 if (!o.smallestScreenWidthDp) return true;
1580 }
1581 }
1582
1583 if (screenSizeDp || o.screenSizeDp) {
1584 if (screenWidthDp != o.screenWidthDp) {
1585 if (!screenWidthDp) return false;
1586 if (!o.screenWidthDp) return true;
1587 }
1588
1589 if (screenHeightDp != o.screenHeightDp) {
1590 if (!screenHeightDp) return false;
1591 if (!o.screenHeightDp) return true;
1592 }
1593 }
1594
1595 if (screenLayout || o.screenLayout) {
1596 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1597 if (!(screenLayout & MASK_SCREENSIZE)) return false;
1598 if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1599 }
1600 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1601 if (!(screenLayout & MASK_SCREENLONG)) return false;
1602 if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1603 }
1604 }
1605
1606 if (orientation != o.orientation) {
1607 if (!orientation) return false;
1608 if (!o.orientation) return true;
1609 }
1610
1611 if (uiMode || o.uiMode) {
1612 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
1613 if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
1614 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
1615 }
1616 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
1617 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
1618 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
1619 }
1620 }
1621
1622 // density is never 'more specific'
1623 // as the default just equals 160
1624
1625 if (touchscreen != o.touchscreen) {
1626 if (!touchscreen) return false;
1627 if (!o.touchscreen) return true;
1628 }
1629
1630 if (input || o.input) {
1631 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
1632 if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
1633 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
1634 }
1635
1636 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
1637 if (!(inputFlags & MASK_NAVHIDDEN)) return false;
1638 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
1639 }
1640
1641 if (keyboard != o.keyboard) {
1642 if (!keyboard) return false;
1643 if (!o.keyboard) return true;
1644 }
1645
1646 if (navigation != o.navigation) {
1647 if (!navigation) return false;
1648 if (!o.navigation) return true;
1649 }
1650 }
1651
1652 if (screenSize || o.screenSize) {
1653 if (screenWidth != o.screenWidth) {
1654 if (!screenWidth) return false;
1655 if (!o.screenWidth) return true;
1656 }
1657
1658 if (screenHeight != o.screenHeight) {
1659 if (!screenHeight) return false;
1660 if (!o.screenHeight) return true;
1661 }
1662 }
1663
1664 if (version || o.version) {
1665 if (sdkVersion != o.sdkVersion) {
1666 if (!sdkVersion) return false;
1667 if (!o.sdkVersion) return true;
1668 }
1669
1670 if (minorVersion != o.minorVersion) {
1671 if (!minorVersion) return false;
1672 if (!o.minorVersion) return true;
1673 }
1674 }
1675 return false;
1676 }
1677
isBetterThan(const ResTable_config & o,const ResTable_config * requested) const1678 bool ResTable_config::isBetterThan(const ResTable_config& o,
1679 const ResTable_config* requested) const {
1680 if (requested) {
1681 if (imsi || o.imsi) {
1682 if ((mcc != o.mcc) && requested->mcc) {
1683 return (mcc);
1684 }
1685
1686 if ((mnc != o.mnc) && requested->mnc) {
1687 return (mnc);
1688 }
1689 }
1690
1691 if (locale || o.locale) {
1692 if ((language[0] != o.language[0]) && requested->language[0]) {
1693 return (language[0]);
1694 }
1695
1696 if ((country[0] != o.country[0]) && requested->country[0]) {
1697 return (country[0]);
1698 }
1699 }
1700
1701 if (screenLayout || o.screenLayout) {
1702 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
1703 && (requested->screenLayout & MASK_LAYOUTDIR)) {
1704 int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
1705 int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
1706 return (myLayoutDir > oLayoutDir);
1707 }
1708 }
1709
1710 if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1711 // The configuration closest to the actual size is best.
1712 // We assume that larger configs have already been filtered
1713 // out at this point. That means we just want the largest one.
1714 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1715 return smallestScreenWidthDp > o.smallestScreenWidthDp;
1716 }
1717 }
1718
1719 if (screenSizeDp || o.screenSizeDp) {
1720 // "Better" is based on the sum of the difference between both
1721 // width and height from the requested dimensions. We are
1722 // assuming the invalid configs (with smaller dimens) have
1723 // already been filtered. Note that if a particular dimension
1724 // is unspecified, we will end up with a large value (the
1725 // difference between 0 and the requested dimension), which is
1726 // good since we will prefer a config that has specified a
1727 // dimension value.
1728 int myDelta = 0, otherDelta = 0;
1729 if (requested->screenWidthDp) {
1730 myDelta += requested->screenWidthDp - screenWidthDp;
1731 otherDelta += requested->screenWidthDp - o.screenWidthDp;
1732 }
1733 if (requested->screenHeightDp) {
1734 myDelta += requested->screenHeightDp - screenHeightDp;
1735 otherDelta += requested->screenHeightDp - o.screenHeightDp;
1736 }
1737 //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
1738 // screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
1739 // requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
1740 if (myDelta != otherDelta) {
1741 return myDelta < otherDelta;
1742 }
1743 }
1744
1745 if (screenLayout || o.screenLayout) {
1746 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
1747 && (requested->screenLayout & MASK_SCREENSIZE)) {
1748 // A little backwards compatibility here: undefined is
1749 // considered equivalent to normal. But only if the
1750 // requested size is at least normal; otherwise, small
1751 // is better than the default.
1752 int mySL = (screenLayout & MASK_SCREENSIZE);
1753 int oSL = (o.screenLayout & MASK_SCREENSIZE);
1754 int fixedMySL = mySL;
1755 int fixedOSL = oSL;
1756 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
1757 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
1758 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
1759 }
1760 // For screen size, the best match is the one that is
1761 // closest to the requested screen size, but not over
1762 // (the not over part is dealt with in match() below).
1763 if (fixedMySL == fixedOSL) {
1764 // If the two are the same, but 'this' is actually
1765 // undefined, then the other is really a better match.
1766 if (mySL == 0) return false;
1767 return true;
1768 }
1769 if (fixedMySL != fixedOSL) {
1770 return fixedMySL > fixedOSL;
1771 }
1772 }
1773 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
1774 && (requested->screenLayout & MASK_SCREENLONG)) {
1775 return (screenLayout & MASK_SCREENLONG);
1776 }
1777 }
1778
1779 if ((orientation != o.orientation) && requested->orientation) {
1780 return (orientation);
1781 }
1782
1783 if (uiMode || o.uiMode) {
1784 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
1785 && (requested->uiMode & MASK_UI_MODE_TYPE)) {
1786 return (uiMode & MASK_UI_MODE_TYPE);
1787 }
1788 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
1789 && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
1790 return (uiMode & MASK_UI_MODE_NIGHT);
1791 }
1792 }
1793
1794 if (screenType || o.screenType) {
1795 if (density != o.density) {
1796 // density is tough. Any density is potentially useful
1797 // because the system will scale it. Scaling down
1798 // is generally better than scaling up.
1799 // Default density counts as 160dpi (the system default)
1800 // TODO - remove 160 constants
1801 int h = (density?density:160);
1802 int l = (o.density?o.density:160);
1803 bool bImBigger = true;
1804 if (l > h) {
1805 int t = h;
1806 h = l;
1807 l = t;
1808 bImBigger = false;
1809 }
1810
1811 int reqValue = (requested->density?requested->density:160);
1812 if (reqValue >= h) {
1813 // requested value higher than both l and h, give h
1814 return bImBigger;
1815 }
1816 if (l >= reqValue) {
1817 // requested value lower than both l and h, give l
1818 return !bImBigger;
1819 }
1820 // saying that scaling down is 2x better than up
1821 if (((2 * l) - reqValue) * h > reqValue * reqValue) {
1822 return !bImBigger;
1823 } else {
1824 return bImBigger;
1825 }
1826 }
1827
1828 if ((touchscreen != o.touchscreen) && requested->touchscreen) {
1829 return (touchscreen);
1830 }
1831 }
1832
1833 if (input || o.input) {
1834 const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
1835 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
1836 if (keysHidden != oKeysHidden) {
1837 const int reqKeysHidden =
1838 requested->inputFlags & MASK_KEYSHIDDEN;
1839 if (reqKeysHidden) {
1840
1841 if (!keysHidden) return false;
1842 if (!oKeysHidden) return true;
1843 // For compatibility, we count KEYSHIDDEN_NO as being
1844 // the same as KEYSHIDDEN_SOFT. Here we disambiguate
1845 // these by making an exact match more specific.
1846 if (reqKeysHidden == keysHidden) return true;
1847 if (reqKeysHidden == oKeysHidden) return false;
1848 }
1849 }
1850
1851 const int navHidden = inputFlags & MASK_NAVHIDDEN;
1852 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
1853 if (navHidden != oNavHidden) {
1854 const int reqNavHidden =
1855 requested->inputFlags & MASK_NAVHIDDEN;
1856 if (reqNavHidden) {
1857
1858 if (!navHidden) return false;
1859 if (!oNavHidden) return true;
1860 }
1861 }
1862
1863 if ((keyboard != o.keyboard) && requested->keyboard) {
1864 return (keyboard);
1865 }
1866
1867 if ((navigation != o.navigation) && requested->navigation) {
1868 return (navigation);
1869 }
1870 }
1871
1872 if (screenSize || o.screenSize) {
1873 // "Better" is based on the sum of the difference between both
1874 // width and height from the requested dimensions. We are
1875 // assuming the invalid configs (with smaller sizes) have
1876 // already been filtered. Note that if a particular dimension
1877 // is unspecified, we will end up with a large value (the
1878 // difference between 0 and the requested dimension), which is
1879 // good since we will prefer a config that has specified a
1880 // size value.
1881 int myDelta = 0, otherDelta = 0;
1882 if (requested->screenWidth) {
1883 myDelta += requested->screenWidth - screenWidth;
1884 otherDelta += requested->screenWidth - o.screenWidth;
1885 }
1886 if (requested->screenHeight) {
1887 myDelta += requested->screenHeight - screenHeight;
1888 otherDelta += requested->screenHeight - o.screenHeight;
1889 }
1890 if (myDelta != otherDelta) {
1891 return myDelta < otherDelta;
1892 }
1893 }
1894
1895 if (version || o.version) {
1896 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
1897 return (sdkVersion > o.sdkVersion);
1898 }
1899
1900 if ((minorVersion != o.minorVersion) &&
1901 requested->minorVersion) {
1902 return (minorVersion);
1903 }
1904 }
1905
1906 return false;
1907 }
1908 return isMoreSpecificThan(o);
1909 }
1910
match(const ResTable_config & settings) const1911 bool ResTable_config::match(const ResTable_config& settings) const {
1912 if (imsi != 0) {
1913 if (mcc != 0 && mcc != settings.mcc) {
1914 return false;
1915 }
1916 if (mnc != 0 && mnc != settings.mnc) {
1917 return false;
1918 }
1919 }
1920 if (locale != 0) {
1921 if (language[0] != 0
1922 && (language[0] != settings.language[0]
1923 || language[1] != settings.language[1])) {
1924 return false;
1925 }
1926 if (country[0] != 0
1927 && (country[0] != settings.country[0]
1928 || country[1] != settings.country[1])) {
1929 return false;
1930 }
1931 }
1932 if (screenConfig != 0) {
1933 const int layoutDir = screenLayout&MASK_LAYOUTDIR;
1934 const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
1935 if (layoutDir != 0 && layoutDir != setLayoutDir) {
1936 return false;
1937 }
1938
1939 const int screenSize = screenLayout&MASK_SCREENSIZE;
1940 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
1941 // Any screen sizes for larger screens than the setting do not
1942 // match.
1943 if (screenSize != 0 && screenSize > setScreenSize) {
1944 return false;
1945 }
1946
1947 const int screenLong = screenLayout&MASK_SCREENLONG;
1948 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
1949 if (screenLong != 0 && screenLong != setScreenLong) {
1950 return false;
1951 }
1952
1953 const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
1954 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
1955 if (uiModeType != 0 && uiModeType != setUiModeType) {
1956 return false;
1957 }
1958
1959 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
1960 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
1961 if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
1962 return false;
1963 }
1964
1965 if (smallestScreenWidthDp != 0
1966 && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
1967 return false;
1968 }
1969 }
1970 if (screenSizeDp != 0) {
1971 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
1972 //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
1973 return false;
1974 }
1975 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
1976 //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
1977 return false;
1978 }
1979 }
1980 if (screenType != 0) {
1981 if (orientation != 0 && orientation != settings.orientation) {
1982 return false;
1983 }
1984 // density always matches - we can scale it. See isBetterThan
1985 if (touchscreen != 0 && touchscreen != settings.touchscreen) {
1986 return false;
1987 }
1988 }
1989 if (input != 0) {
1990 const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
1991 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
1992 if (keysHidden != 0 && keysHidden != setKeysHidden) {
1993 // For compatibility, we count a request for KEYSHIDDEN_NO as also
1994 // matching the more recent KEYSHIDDEN_SOFT. Basically
1995 // KEYSHIDDEN_NO means there is some kind of keyboard available.
1996 //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
1997 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
1998 //ALOGI("No match!");
1999 return false;
2000 }
2001 }
2002 const int navHidden = inputFlags&MASK_NAVHIDDEN;
2003 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2004 if (navHidden != 0 && navHidden != setNavHidden) {
2005 return false;
2006 }
2007 if (keyboard != 0 && keyboard != settings.keyboard) {
2008 return false;
2009 }
2010 if (navigation != 0 && navigation != settings.navigation) {
2011 return false;
2012 }
2013 }
2014 if (screenSize != 0) {
2015 if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2016 return false;
2017 }
2018 if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2019 return false;
2020 }
2021 }
2022 if (version != 0) {
2023 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2024 return false;
2025 }
2026 if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2027 return false;
2028 }
2029 }
2030 return true;
2031 }
2032
getLocale(char str[6]) const2033 void ResTable_config::getLocale(char str[6]) const {
2034 memset(str, 0, 6);
2035 if (language[0]) {
2036 str[0] = language[0];
2037 str[1] = language[1];
2038 if (country[0]) {
2039 str[2] = '_';
2040 str[3] = country[0];
2041 str[4] = country[1];
2042 }
2043 }
2044 }
2045
toString() const2046 String8 ResTable_config::toString() const {
2047 String8 res;
2048
2049 if (mcc != 0) {
2050 if (res.size() > 0) res.append("-");
2051 res.appendFormat("%dmcc", dtohs(mcc));
2052 }
2053 if (mnc != 0) {
2054 if (res.size() > 0) res.append("-");
2055 res.appendFormat("%dmnc", dtohs(mnc));
2056 }
2057 if (language[0] != 0) {
2058 if (res.size() > 0) res.append("-");
2059 res.append(language, 2);
2060 }
2061 if (country[0] != 0) {
2062 if (res.size() > 0) res.append("-");
2063 res.append(country, 2);
2064 }
2065 if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2066 if (res.size() > 0) res.append("-");
2067 switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2068 case ResTable_config::LAYOUTDIR_LTR:
2069 res.append("ldltr");
2070 break;
2071 case ResTable_config::LAYOUTDIR_RTL:
2072 res.append("ldrtl");
2073 break;
2074 default:
2075 res.appendFormat("layoutDir=%d",
2076 dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2077 break;
2078 }
2079 }
2080 if (smallestScreenWidthDp != 0) {
2081 if (res.size() > 0) res.append("-");
2082 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2083 }
2084 if (screenWidthDp != 0) {
2085 if (res.size() > 0) res.append("-");
2086 res.appendFormat("w%ddp", dtohs(screenWidthDp));
2087 }
2088 if (screenHeightDp != 0) {
2089 if (res.size() > 0) res.append("-");
2090 res.appendFormat("h%ddp", dtohs(screenHeightDp));
2091 }
2092 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2093 if (res.size() > 0) res.append("-");
2094 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2095 case ResTable_config::SCREENSIZE_SMALL:
2096 res.append("small");
2097 break;
2098 case ResTable_config::SCREENSIZE_NORMAL:
2099 res.append("normal");
2100 break;
2101 case ResTable_config::SCREENSIZE_LARGE:
2102 res.append("large");
2103 break;
2104 case ResTable_config::SCREENSIZE_XLARGE:
2105 res.append("xlarge");
2106 break;
2107 default:
2108 res.appendFormat("screenLayoutSize=%d",
2109 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2110 break;
2111 }
2112 }
2113 if ((screenLayout&MASK_SCREENLONG) != 0) {
2114 if (res.size() > 0) res.append("-");
2115 switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2116 case ResTable_config::SCREENLONG_NO:
2117 res.append("notlong");
2118 break;
2119 case ResTable_config::SCREENLONG_YES:
2120 res.append("long");
2121 break;
2122 default:
2123 res.appendFormat("screenLayoutLong=%d",
2124 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2125 break;
2126 }
2127 }
2128 if (orientation != ORIENTATION_ANY) {
2129 if (res.size() > 0) res.append("-");
2130 switch (orientation) {
2131 case ResTable_config::ORIENTATION_PORT:
2132 res.append("port");
2133 break;
2134 case ResTable_config::ORIENTATION_LAND:
2135 res.append("land");
2136 break;
2137 case ResTable_config::ORIENTATION_SQUARE:
2138 res.append("square");
2139 break;
2140 default:
2141 res.appendFormat("orientation=%d", dtohs(orientation));
2142 break;
2143 }
2144 }
2145 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2146 if (res.size() > 0) res.append("-");
2147 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2148 case ResTable_config::UI_MODE_TYPE_DESK:
2149 res.append("desk");
2150 break;
2151 case ResTable_config::UI_MODE_TYPE_CAR:
2152 res.append("car");
2153 break;
2154 case ResTable_config::UI_MODE_TYPE_TELEVISION:
2155 res.append("television");
2156 break;
2157 case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2158 res.append("appliance");
2159 break;
2160 default:
2161 res.appendFormat("uiModeType=%d",
2162 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2163 break;
2164 }
2165 }
2166 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2167 if (res.size() > 0) res.append("-");
2168 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2169 case ResTable_config::UI_MODE_NIGHT_NO:
2170 res.append("notnight");
2171 break;
2172 case ResTable_config::UI_MODE_NIGHT_YES:
2173 res.append("night");
2174 break;
2175 default:
2176 res.appendFormat("uiModeNight=%d",
2177 dtohs(uiMode&MASK_UI_MODE_NIGHT));
2178 break;
2179 }
2180 }
2181 if (density != DENSITY_DEFAULT) {
2182 if (res.size() > 0) res.append("-");
2183 switch (density) {
2184 case ResTable_config::DENSITY_LOW:
2185 res.append("ldpi");
2186 break;
2187 case ResTable_config::DENSITY_MEDIUM:
2188 res.append("mdpi");
2189 break;
2190 case ResTable_config::DENSITY_TV:
2191 res.append("tvdpi");
2192 break;
2193 case ResTable_config::DENSITY_HIGH:
2194 res.append("hdpi");
2195 break;
2196 case ResTable_config::DENSITY_XHIGH:
2197 res.append("xhdpi");
2198 break;
2199 case ResTable_config::DENSITY_XXHIGH:
2200 res.append("xxhdpi");
2201 break;
2202 case ResTable_config::DENSITY_NONE:
2203 res.append("nodpi");
2204 break;
2205 default:
2206 res.appendFormat("%ddpi", dtohs(density));
2207 break;
2208 }
2209 }
2210 if (touchscreen != TOUCHSCREEN_ANY) {
2211 if (res.size() > 0) res.append("-");
2212 switch (touchscreen) {
2213 case ResTable_config::TOUCHSCREEN_NOTOUCH:
2214 res.append("notouch");
2215 break;
2216 case ResTable_config::TOUCHSCREEN_FINGER:
2217 res.append("finger");
2218 break;
2219 case ResTable_config::TOUCHSCREEN_STYLUS:
2220 res.append("stylus");
2221 break;
2222 default:
2223 res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2224 break;
2225 }
2226 }
2227 if (keyboard != KEYBOARD_ANY) {
2228 if (res.size() > 0) res.append("-");
2229 switch (keyboard) {
2230 case ResTable_config::KEYBOARD_NOKEYS:
2231 res.append("nokeys");
2232 break;
2233 case ResTable_config::KEYBOARD_QWERTY:
2234 res.append("qwerty");
2235 break;
2236 case ResTable_config::KEYBOARD_12KEY:
2237 res.append("12key");
2238 break;
2239 default:
2240 res.appendFormat("keyboard=%d", dtohs(keyboard));
2241 break;
2242 }
2243 }
2244 if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2245 if (res.size() > 0) res.append("-");
2246 switch (inputFlags&MASK_KEYSHIDDEN) {
2247 case ResTable_config::KEYSHIDDEN_NO:
2248 res.append("keysexposed");
2249 break;
2250 case ResTable_config::KEYSHIDDEN_YES:
2251 res.append("keyshidden");
2252 break;
2253 case ResTable_config::KEYSHIDDEN_SOFT:
2254 res.append("keyssoft");
2255 break;
2256 }
2257 }
2258 if (navigation != NAVIGATION_ANY) {
2259 if (res.size() > 0) res.append("-");
2260 switch (navigation) {
2261 case ResTable_config::NAVIGATION_NONAV:
2262 res.append("nonav");
2263 break;
2264 case ResTable_config::NAVIGATION_DPAD:
2265 res.append("dpad");
2266 break;
2267 case ResTable_config::NAVIGATION_TRACKBALL:
2268 res.append("trackball");
2269 break;
2270 case ResTable_config::NAVIGATION_WHEEL:
2271 res.append("wheel");
2272 break;
2273 default:
2274 res.appendFormat("navigation=%d", dtohs(navigation));
2275 break;
2276 }
2277 }
2278 if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2279 if (res.size() > 0) res.append("-");
2280 switch (inputFlags&MASK_NAVHIDDEN) {
2281 case ResTable_config::NAVHIDDEN_NO:
2282 res.append("navsexposed");
2283 break;
2284 case ResTable_config::NAVHIDDEN_YES:
2285 res.append("navhidden");
2286 break;
2287 default:
2288 res.appendFormat("inputFlagsNavHidden=%d",
2289 dtohs(inputFlags&MASK_NAVHIDDEN));
2290 break;
2291 }
2292 }
2293 if (screenSize != 0) {
2294 if (res.size() > 0) res.append("-");
2295 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2296 }
2297 if (version != 0) {
2298 if (res.size() > 0) res.append("-");
2299 res.appendFormat("v%d", dtohs(sdkVersion));
2300 if (minorVersion != 0) {
2301 res.appendFormat(".%d", dtohs(minorVersion));
2302 }
2303 }
2304
2305 return res;
2306 }
2307
2308 // --------------------------------------------------------------------
2309 // --------------------------------------------------------------------
2310 // --------------------------------------------------------------------
2311
2312 struct ResTable::Header
2313 {
Headerandroid::ResTable::Header2314 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2315 resourceIDMap(NULL), resourceIDMapSize(0) { }
2316
~Headerandroid::ResTable::Header2317 ~Header()
2318 {
2319 free(resourceIDMap);
2320 }
2321
2322 ResTable* const owner;
2323 void* ownedData;
2324 const ResTable_header* header;
2325 size_t size;
2326 const uint8_t* dataEnd;
2327 size_t index;
2328 void* cookie;
2329
2330 ResStringPool values;
2331 uint32_t* resourceIDMap;
2332 size_t resourceIDMapSize;
2333 };
2334
2335 struct ResTable::Type
2336 {
Typeandroid::ResTable::Type2337 Type(const Header* _header, const Package* _package, size_t count)
2338 : header(_header), package(_package), entryCount(count),
2339 typeSpec(NULL), typeSpecFlags(NULL) { }
2340 const Header* const header;
2341 const Package* const package;
2342 const size_t entryCount;
2343 const ResTable_typeSpec* typeSpec;
2344 const uint32_t* typeSpecFlags;
2345 Vector<const ResTable_type*> configs;
2346 };
2347
2348 struct ResTable::Package
2349 {
Packageandroid::ResTable::Package2350 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2351 : owner(_owner), header(_header), package(_package) { }
~Packageandroid::ResTable::Package2352 ~Package()
2353 {
2354 size_t i = types.size();
2355 while (i > 0) {
2356 i--;
2357 delete types[i];
2358 }
2359 }
2360
2361 ResTable* const owner;
2362 const Header* const header;
2363 const ResTable_package* const package;
2364 Vector<Type*> types;
2365
2366 ResStringPool typeStrings;
2367 ResStringPool keyStrings;
2368
getTypeandroid::ResTable::Package2369 const Type* getType(size_t idx) const {
2370 return idx < types.size() ? types[idx] : NULL;
2371 }
2372 };
2373
2374 // A group of objects describing a particular resource package.
2375 // The first in 'package' is always the root object (from the resource
2376 // table that defined the package); the ones after are skins on top of it.
2377 struct ResTable::PackageGroup
2378 {
PackageGroupandroid::ResTable::PackageGroup2379 PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2380 : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { }
~PackageGroupandroid::ResTable::PackageGroup2381 ~PackageGroup() {
2382 clearBagCache();
2383 const size_t N = packages.size();
2384 for (size_t i=0; i<N; i++) {
2385 Package* pkg = packages[i];
2386 if (pkg->owner == owner) {
2387 delete pkg;
2388 }
2389 }
2390 }
2391
clearBagCacheandroid::ResTable::PackageGroup2392 void clearBagCache() {
2393 if (bags) {
2394 TABLE_NOISY(printf("bags=%p\n", bags));
2395 Package* pkg = packages[0];
2396 TABLE_NOISY(printf("typeCount=%x\n", typeCount));
2397 for (size_t i=0; i<typeCount; i++) {
2398 TABLE_NOISY(printf("type=%d\n", i));
2399 const Type* type = pkg->getType(i);
2400 if (type != NULL) {
2401 bag_set** typeBags = bags[i];
2402 TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2403 if (typeBags) {
2404 TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
2405 const size_t N = type->entryCount;
2406 for (size_t j=0; j<N; j++) {
2407 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2408 free(typeBags[j]);
2409 }
2410 free(typeBags);
2411 }
2412 }
2413 }
2414 free(bags);
2415 bags = NULL;
2416 }
2417 }
2418
2419 ResTable* const owner;
2420 String16 const name;
2421 uint32_t const id;
2422 Vector<Package*> packages;
2423
2424 // This is for finding typeStrings and other common package stuff.
2425 Package* basePackage;
2426
2427 // For quick access.
2428 size_t typeCount;
2429
2430 // Computed attribute bags, first indexed by the type and second
2431 // by the entry in that type.
2432 bag_set*** bags;
2433 };
2434
2435 struct ResTable::bag_set
2436 {
2437 size_t numAttrs; // number in array
2438 size_t availAttrs; // total space in array
2439 uint32_t typeSpecFlags;
2440 // Followed by 'numAttr' bag_entry structures.
2441 };
2442
Theme(const ResTable & table)2443 ResTable::Theme::Theme(const ResTable& table)
2444 : mTable(table)
2445 {
2446 memset(mPackages, 0, sizeof(mPackages));
2447 }
2448
~Theme()2449 ResTable::Theme::~Theme()
2450 {
2451 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2452 package_info* pi = mPackages[i];
2453 if (pi != NULL) {
2454 free_package(pi);
2455 }
2456 }
2457 }
2458
free_package(package_info * pi)2459 void ResTable::Theme::free_package(package_info* pi)
2460 {
2461 for (size_t j=0; j<pi->numTypes; j++) {
2462 theme_entry* te = pi->types[j].entries;
2463 if (te != NULL) {
2464 free(te);
2465 }
2466 }
2467 free(pi);
2468 }
2469
copy_package(package_info * pi)2470 ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
2471 {
2472 package_info* newpi = (package_info*)malloc(
2473 sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
2474 newpi->numTypes = pi->numTypes;
2475 for (size_t j=0; j<newpi->numTypes; j++) {
2476 size_t cnt = pi->types[j].numEntries;
2477 newpi->types[j].numEntries = cnt;
2478 theme_entry* te = pi->types[j].entries;
2479 if (te != NULL) {
2480 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2481 newpi->types[j].entries = newte;
2482 memcpy(newte, te, cnt*sizeof(theme_entry));
2483 } else {
2484 newpi->types[j].entries = NULL;
2485 }
2486 }
2487 return newpi;
2488 }
2489
applyStyle(uint32_t resID,bool force)2490 status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
2491 {
2492 const bag_entry* bag;
2493 uint32_t bagTypeSpecFlags = 0;
2494 mTable.lock();
2495 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
2496 TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
2497 if (N < 0) {
2498 mTable.unlock();
2499 return N;
2500 }
2501
2502 uint32_t curPackage = 0xffffffff;
2503 ssize_t curPackageIndex = 0;
2504 package_info* curPI = NULL;
2505 uint32_t curType = 0xffffffff;
2506 size_t numEntries = 0;
2507 theme_entry* curEntries = NULL;
2508
2509 const bag_entry* end = bag + N;
2510 while (bag < end) {
2511 const uint32_t attrRes = bag->map.name.ident;
2512 const uint32_t p = Res_GETPACKAGE(attrRes);
2513 const uint32_t t = Res_GETTYPE(attrRes);
2514 const uint32_t e = Res_GETENTRY(attrRes);
2515
2516 if (curPackage != p) {
2517 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
2518 if (pidx < 0) {
2519 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
2520 bag++;
2521 continue;
2522 }
2523 curPackage = p;
2524 curPackageIndex = pidx;
2525 curPI = mPackages[pidx];
2526 if (curPI == NULL) {
2527 PackageGroup* const grp = mTable.mPackageGroups[pidx];
2528 int cnt = grp->typeCount;
2529 curPI = (package_info*)malloc(
2530 sizeof(package_info) + (cnt*sizeof(type_info)));
2531 curPI->numTypes = cnt;
2532 memset(curPI->types, 0, cnt*sizeof(type_info));
2533 mPackages[pidx] = curPI;
2534 }
2535 curType = 0xffffffff;
2536 }
2537 if (curType != t) {
2538 if (t >= curPI->numTypes) {
2539 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
2540 bag++;
2541 continue;
2542 }
2543 curType = t;
2544 curEntries = curPI->types[t].entries;
2545 if (curEntries == NULL) {
2546 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
2547 const Type* type = grp->packages[0]->getType(t);
2548 int cnt = type != NULL ? type->entryCount : 0;
2549 curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2550 memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
2551 curPI->types[t].numEntries = cnt;
2552 curPI->types[t].entries = curEntries;
2553 }
2554 numEntries = curPI->types[t].numEntries;
2555 }
2556 if (e >= numEntries) {
2557 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
2558 bag++;
2559 continue;
2560 }
2561 theme_entry* curEntry = curEntries + e;
2562 TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
2563 attrRes, bag->map.value.dataType, bag->map.value.data,
2564 curEntry->value.dataType));
2565 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
2566 curEntry->stringBlock = bag->stringBlock;
2567 curEntry->typeSpecFlags |= bagTypeSpecFlags;
2568 curEntry->value = bag->map.value;
2569 }
2570
2571 bag++;
2572 }
2573
2574 mTable.unlock();
2575
2576 //ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this);
2577 //dumpToLog();
2578
2579 return NO_ERROR;
2580 }
2581
setTo(const Theme & other)2582 status_t ResTable::Theme::setTo(const Theme& other)
2583 {
2584 //ALOGI("Setting theme %p from theme %p...\n", this, &other);
2585 //dumpToLog();
2586 //other.dumpToLog();
2587
2588 if (&mTable == &other.mTable) {
2589 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2590 if (mPackages[i] != NULL) {
2591 free_package(mPackages[i]);
2592 }
2593 if (other.mPackages[i] != NULL) {
2594 mPackages[i] = copy_package(other.mPackages[i]);
2595 } else {
2596 mPackages[i] = NULL;
2597 }
2598 }
2599 } else {
2600 // @todo: need to really implement this, not just copy
2601 // the system package (which is still wrong because it isn't
2602 // fixing up resource references).
2603 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2604 if (mPackages[i] != NULL) {
2605 free_package(mPackages[i]);
2606 }
2607 if (i == 0 && other.mPackages[i] != NULL) {
2608 mPackages[i] = copy_package(other.mPackages[i]);
2609 } else {
2610 mPackages[i] = NULL;
2611 }
2612 }
2613 }
2614
2615 //ALOGI("Final theme:");
2616 //dumpToLog();
2617
2618 return NO_ERROR;
2619 }
2620
getAttribute(uint32_t resID,Res_value * outValue,uint32_t * outTypeSpecFlags) const2621 ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
2622 uint32_t* outTypeSpecFlags) const
2623 {
2624 int cnt = 20;
2625
2626 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
2627
2628 do {
2629 const ssize_t p = mTable.getResourcePackageIndex(resID);
2630 const uint32_t t = Res_GETTYPE(resID);
2631 const uint32_t e = Res_GETENTRY(resID);
2632
2633 TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
2634
2635 if (p >= 0) {
2636 const package_info* const pi = mPackages[p];
2637 TABLE_THEME(ALOGI("Found package: %p", pi));
2638 if (pi != NULL) {
2639 TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes));
2640 if (t < pi->numTypes) {
2641 const type_info& ti = pi->types[t];
2642 TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
2643 if (e < ti.numEntries) {
2644 const theme_entry& te = ti.entries[e];
2645 if (outTypeSpecFlags != NULL) {
2646 *outTypeSpecFlags |= te.typeSpecFlags;
2647 }
2648 TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
2649 te.value.dataType, te.value.data));
2650 const uint8_t type = te.value.dataType;
2651 if (type == Res_value::TYPE_ATTRIBUTE) {
2652 if (cnt > 0) {
2653 cnt--;
2654 resID = te.value.data;
2655 continue;
2656 }
2657 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
2658 return BAD_INDEX;
2659 } else if (type != Res_value::TYPE_NULL) {
2660 *outValue = te.value;
2661 return te.stringBlock;
2662 }
2663 return BAD_INDEX;
2664 }
2665 }
2666 }
2667 }
2668 break;
2669
2670 } while (true);
2671
2672 return BAD_INDEX;
2673 }
2674
resolveAttributeReference(Res_value * inOutValue,ssize_t blockIndex,uint32_t * outLastRef,uint32_t * inoutTypeSpecFlags,ResTable_config * inoutConfig) const2675 ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
2676 ssize_t blockIndex, uint32_t* outLastRef,
2677 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
2678 {
2679 //printf("Resolving type=0x%x\n", inOutValue->dataType);
2680 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
2681 uint32_t newTypeSpecFlags;
2682 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
2683 TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
2684 (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
2685 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
2686 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
2687 if (blockIndex < 0) {
2688 return blockIndex;
2689 }
2690 }
2691 return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
2692 inoutTypeSpecFlags, inoutConfig);
2693 }
2694
dumpToLog() const2695 void ResTable::Theme::dumpToLog() const
2696 {
2697 ALOGI("Theme %p:\n", this);
2698 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2699 package_info* pi = mPackages[i];
2700 if (pi == NULL) continue;
2701
2702 ALOGI(" Package #0x%02x:\n", (int)(i+1));
2703 for (size_t j=0; j<pi->numTypes; j++) {
2704 type_info& ti = pi->types[j];
2705 if (ti.numEntries == 0) continue;
2706
2707 ALOGI(" Type #0x%02x:\n", (int)(j+1));
2708 for (size_t k=0; k<ti.numEntries; k++) {
2709 theme_entry& te = ti.entries[k];
2710 if (te.value.dataType == Res_value::TYPE_NULL) continue;
2711 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
2712 (int)Res_MAKEID(i, j, k),
2713 te.value.dataType, (int)te.value.data, (int)te.stringBlock);
2714 }
2715 }
2716 }
2717 }
2718
ResTable()2719 ResTable::ResTable()
2720 : mError(NO_INIT)
2721 {
2722 memset(&mParams, 0, sizeof(mParams));
2723 memset(mPackageMap, 0, sizeof(mPackageMap));
2724 //ALOGI("Creating ResTable %p\n", this);
2725 }
2726
ResTable(const void * data,size_t size,void * cookie,bool copyData)2727 ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData)
2728 : mError(NO_INIT)
2729 {
2730 memset(&mParams, 0, sizeof(mParams));
2731 memset(mPackageMap, 0, sizeof(mPackageMap));
2732 add(data, size, cookie, copyData);
2733 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
2734 //ALOGI("Creating ResTable %p\n", this);
2735 }
2736
~ResTable()2737 ResTable::~ResTable()
2738 {
2739 //ALOGI("Destroying ResTable in %p\n", this);
2740 uninit();
2741 }
2742
getResourcePackageIndex(uint32_t resID) const2743 inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
2744 {
2745 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
2746 }
2747
add(const void * data,size_t size,void * cookie,bool copyData,const void * idmap)2748 status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData,
2749 const void* idmap)
2750 {
2751 return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap));
2752 }
2753
add(Asset * asset,void * cookie,bool copyData,const void * idmap)2754 status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap)
2755 {
2756 const void* data = asset->getBuffer(true);
2757 if (data == NULL) {
2758 ALOGW("Unable to get buffer of resource asset file");
2759 return UNKNOWN_ERROR;
2760 }
2761 size_t size = (size_t)asset->getLength();
2762 return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap));
2763 }
2764
add(ResTable * src)2765 status_t ResTable::add(ResTable* src)
2766 {
2767 mError = src->mError;
2768
2769 for (size_t i=0; i<src->mHeaders.size(); i++) {
2770 mHeaders.add(src->mHeaders[i]);
2771 }
2772
2773 for (size_t i=0; i<src->mPackageGroups.size(); i++) {
2774 PackageGroup* srcPg = src->mPackageGroups[i];
2775 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
2776 for (size_t j=0; j<srcPg->packages.size(); j++) {
2777 pg->packages.add(srcPg->packages[j]);
2778 }
2779 pg->basePackage = srcPg->basePackage;
2780 pg->typeCount = srcPg->typeCount;
2781 mPackageGroups.add(pg);
2782 }
2783
2784 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
2785
2786 return mError;
2787 }
2788
add(const void * data,size_t size,void * cookie,Asset * asset,bool copyData,const Asset * idmap)2789 status_t ResTable::add(const void* data, size_t size, void* cookie,
2790 Asset* asset, bool copyData, const Asset* idmap)
2791 {
2792 if (!data) return NO_ERROR;
2793 Header* header = new Header(this);
2794 header->index = mHeaders.size();
2795 header->cookie = cookie;
2796 if (idmap != NULL) {
2797 const size_t idmap_size = idmap->getLength();
2798 const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
2799 header->resourceIDMap = (uint32_t*)malloc(idmap_size);
2800 if (header->resourceIDMap == NULL) {
2801 delete header;
2802 return (mError = NO_MEMORY);
2803 }
2804 memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
2805 header->resourceIDMapSize = idmap_size;
2806 }
2807 mHeaders.add(header);
2808
2809 const bool notDeviceEndian = htods(0xf0) != 0xf0;
2810
2811 LOAD_TABLE_NOISY(
2812 ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d "
2813 "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
2814
2815 if (copyData || notDeviceEndian) {
2816 header->ownedData = malloc(size);
2817 if (header->ownedData == NULL) {
2818 return (mError=NO_MEMORY);
2819 }
2820 memcpy(header->ownedData, data, size);
2821 data = header->ownedData;
2822 }
2823
2824 header->header = (const ResTable_header*)data;
2825 header->size = dtohl(header->header->header.size);
2826 //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
2827 // dtohl(header->header->header.size), header->header->header.size);
2828 LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
2829 LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256,
2830 16, 16, 0, false, printToLogFunc));
2831 if (dtohs(header->header->header.headerSize) > header->size
2832 || header->size > size) {
2833 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
2834 (int)dtohs(header->header->header.headerSize),
2835 (int)header->size, (int)size);
2836 return (mError=BAD_TYPE);
2837 }
2838 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
2839 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
2840 (int)dtohs(header->header->header.headerSize),
2841 (int)header->size);
2842 return (mError=BAD_TYPE);
2843 }
2844 header->dataEnd = ((const uint8_t*)header->header) + header->size;
2845
2846 // Iterate through all chunks.
2847 size_t curPackage = 0;
2848
2849 const ResChunk_header* chunk =
2850 (const ResChunk_header*)(((const uint8_t*)header->header)
2851 + dtohs(header->header->header.headerSize));
2852 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
2853 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
2854 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
2855 if (err != NO_ERROR) {
2856 return (mError=err);
2857 }
2858 TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
2859 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
2860 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
2861 const size_t csize = dtohl(chunk->size);
2862 const uint16_t ctype = dtohs(chunk->type);
2863 if (ctype == RES_STRING_POOL_TYPE) {
2864 if (header->values.getError() != NO_ERROR) {
2865 // Only use the first string chunk; ignore any others that
2866 // may appear.
2867 status_t err = header->values.setTo(chunk, csize);
2868 if (err != NO_ERROR) {
2869 return (mError=err);
2870 }
2871 } else {
2872 ALOGW("Multiple string chunks found in resource table.");
2873 }
2874 } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
2875 if (curPackage >= dtohl(header->header->packageCount)) {
2876 ALOGW("More package chunks were found than the %d declared in the header.",
2877 dtohl(header->header->packageCount));
2878 return (mError=BAD_TYPE);
2879 }
2880 uint32_t idmap_id = 0;
2881 if (idmap != NULL) {
2882 uint32_t tmp;
2883 if (getIdmapPackageId(header->resourceIDMap,
2884 header->resourceIDMapSize,
2885 &tmp) == NO_ERROR) {
2886 idmap_id = tmp;
2887 }
2888 }
2889 if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
2890 return mError;
2891 }
2892 curPackage++;
2893 } else {
2894 ALOGW("Unknown chunk type %p in table at %p.\n",
2895 (void*)(int)(ctype),
2896 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
2897 }
2898 chunk = (const ResChunk_header*)
2899 (((const uint8_t*)chunk) + csize);
2900 }
2901
2902 if (curPackage < dtohl(header->header->packageCount)) {
2903 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
2904 (int)curPackage, dtohl(header->header->packageCount));
2905 return (mError=BAD_TYPE);
2906 }
2907 mError = header->values.getError();
2908 if (mError != NO_ERROR) {
2909 ALOGW("No string values found in resource table!");
2910 }
2911
2912 TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
2913 return mError;
2914 }
2915
getError() const2916 status_t ResTable::getError() const
2917 {
2918 return mError;
2919 }
2920
uninit()2921 void ResTable::uninit()
2922 {
2923 mError = NO_INIT;
2924 size_t N = mPackageGroups.size();
2925 for (size_t i=0; i<N; i++) {
2926 PackageGroup* g = mPackageGroups[i];
2927 delete g;
2928 }
2929 N = mHeaders.size();
2930 for (size_t i=0; i<N; i++) {
2931 Header* header = mHeaders[i];
2932 if (header->owner == this) {
2933 if (header->ownedData) {
2934 free(header->ownedData);
2935 }
2936 delete header;
2937 }
2938 }
2939
2940 mPackageGroups.clear();
2941 mHeaders.clear();
2942 }
2943
getResourceName(uint32_t resID,resource_name * outName) const2944 bool ResTable::getResourceName(uint32_t resID, resource_name* outName) const
2945 {
2946 if (mError != NO_ERROR) {
2947 return false;
2948 }
2949
2950 const ssize_t p = getResourcePackageIndex(resID);
2951 const int t = Res_GETTYPE(resID);
2952 const int e = Res_GETENTRY(resID);
2953
2954 if (p < 0) {
2955 if (Res_GETPACKAGE(resID)+1 == 0) {
2956 ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
2957 } else {
2958 ALOGW("No known package when getting name for resource number 0x%08x", resID);
2959 }
2960 return false;
2961 }
2962 if (t < 0) {
2963 ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
2964 return false;
2965 }
2966
2967 const PackageGroup* const grp = mPackageGroups[p];
2968 if (grp == NULL) {
2969 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
2970 return false;
2971 }
2972 if (grp->packages.size() > 0) {
2973 const Package* const package = grp->packages[0];
2974
2975 const ResTable_type* type;
2976 const ResTable_entry* entry;
2977 ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
2978 if (offset <= 0) {
2979 return false;
2980 }
2981
2982 outName->package = grp->name.string();
2983 outName->packageLen = grp->name.size();
2984 outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
2985 outName->name = grp->basePackage->keyStrings.stringAt(
2986 dtohl(entry->key.index), &outName->nameLen);
2987
2988 // If we have a bad index for some reason, we should abort.
2989 if (outName->type == NULL || outName->name == NULL) {
2990 return false;
2991 }
2992
2993 return true;
2994 }
2995
2996 return false;
2997 }
2998
getResource(uint32_t resID,Res_value * outValue,bool mayBeBag,uint16_t density,uint32_t * outSpecFlags,ResTable_config * outConfig) const2999 ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3000 uint32_t* outSpecFlags, ResTable_config* outConfig) const
3001 {
3002 if (mError != NO_ERROR) {
3003 return mError;
3004 }
3005
3006 const ssize_t p = getResourcePackageIndex(resID);
3007 const int t = Res_GETTYPE(resID);
3008 const int e = Res_GETENTRY(resID);
3009
3010 if (p < 0) {
3011 if (Res_GETPACKAGE(resID)+1 == 0) {
3012 ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3013 } else {
3014 ALOGW("No known package when getting value for resource number 0x%08x", resID);
3015 }
3016 return BAD_INDEX;
3017 }
3018 if (t < 0) {
3019 ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3020 return BAD_INDEX;
3021 }
3022
3023 const Res_value* bestValue = NULL;
3024 const Package* bestPackage = NULL;
3025 ResTable_config bestItem;
3026 memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
3027
3028 if (outSpecFlags != NULL) *outSpecFlags = 0;
3029
3030 // Look through all resource packages, starting with the most
3031 // recently added.
3032 const PackageGroup* const grp = mPackageGroups[p];
3033 if (grp == NULL) {
3034 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3035 return BAD_INDEX;
3036 }
3037
3038 // Allow overriding density
3039 const ResTable_config* desiredConfig = &mParams;
3040 ResTable_config* overrideConfig = NULL;
3041 if (density > 0) {
3042 overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config));
3043 if (overrideConfig == NULL) {
3044 ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno));
3045 return BAD_INDEX;
3046 }
3047 memcpy(overrideConfig, &mParams, sizeof(ResTable_config));
3048 overrideConfig->density = density;
3049 desiredConfig = overrideConfig;
3050 }
3051
3052 ssize_t rc = BAD_VALUE;
3053 size_t ip = grp->packages.size();
3054 while (ip > 0) {
3055 ip--;
3056 int T = t;
3057 int E = e;
3058
3059 const Package* const package = grp->packages[ip];
3060 if (package->header->resourceIDMap) {
3061 uint32_t overlayResID = 0x0;
3062 status_t retval = idmapLookup(package->header->resourceIDMap,
3063 package->header->resourceIDMapSize,
3064 resID, &overlayResID);
3065 if (retval == NO_ERROR && overlayResID != 0x0) {
3066 // for this loop iteration, this is the type and entry we really want
3067 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3068 T = Res_GETTYPE(overlayResID);
3069 E = Res_GETENTRY(overlayResID);
3070 } else {
3071 // resource not present in overlay package, continue with the next package
3072 continue;
3073 }
3074 }
3075
3076 const ResTable_type* type;
3077 const ResTable_entry* entry;
3078 const Type* typeClass;
3079 ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
3080 if (offset <= 0) {
3081 // No {entry, appropriate config} pair found in package. If this
3082 // package is an overlay package (ip != 0), this simply means the
3083 // overlay package did not specify a default.
3084 // Non-overlay packages are still required to provide a default.
3085 if (offset < 0 && ip == 0) {
3086 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
3087 resID, T, E, ip, (int)offset);
3088 rc = offset;
3089 goto out;
3090 }
3091 continue;
3092 }
3093
3094 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
3095 if (!mayBeBag) {
3096 ALOGW("Requesting resource %p failed because it is complex\n",
3097 (void*)resID);
3098 }
3099 continue;
3100 }
3101
3102 TABLE_NOISY(aout << "Resource type data: "
3103 << HexDump(type, dtohl(type->header.size)) << endl);
3104
3105 if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
3106 ALOGW("ResTable_item at %d is beyond type chunk data %d",
3107 (int)offset, dtohl(type->header.size));
3108 rc = BAD_TYPE;
3109 goto out;
3110 }
3111
3112 const Res_value* item =
3113 (const Res_value*)(((const uint8_t*)type) + offset);
3114 ResTable_config thisConfig;
3115 thisConfig.copyFromDtoH(type->config);
3116
3117 if (outSpecFlags != NULL) {
3118 if (typeClass->typeSpecFlags != NULL) {
3119 *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3120 } else {
3121 *outSpecFlags = -1;
3122 }
3123 }
3124
3125 if (bestPackage != NULL &&
3126 (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
3127 // Discard thisConfig not only if bestItem is more specific, but also if the two configs
3128 // are identical (diff == 0), or overlay packages will not take effect.
3129 continue;
3130 }
3131
3132 bestItem = thisConfig;
3133 bestValue = item;
3134 bestPackage = package;
3135 }
3136
3137 TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
3138
3139 if (bestValue) {
3140 outValue->size = dtohs(bestValue->size);
3141 outValue->res0 = bestValue->res0;
3142 outValue->dataType = bestValue->dataType;
3143 outValue->data = dtohl(bestValue->data);
3144 if (outConfig != NULL) {
3145 *outConfig = bestItem;
3146 }
3147 TABLE_NOISY(size_t len;
3148 printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3149 bestPackage->header->index,
3150 outValue->dataType,
3151 outValue->dataType == bestValue->TYPE_STRING
3152 ? String8(bestPackage->header->values.stringAt(
3153 outValue->data, &len)).string()
3154 : "",
3155 outValue->data));
3156 rc = bestPackage->header->index;
3157 goto out;
3158 }
3159
3160 out:
3161 if (overrideConfig != NULL) {
3162 free(overrideConfig);
3163 }
3164
3165 return rc;
3166 }
3167
resolveReference(Res_value * value,ssize_t blockIndex,uint32_t * outLastRef,uint32_t * inoutTypeSpecFlags,ResTable_config * outConfig) const3168 ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3169 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3170 ResTable_config* outConfig) const
3171 {
3172 int count=0;
3173 while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE
3174 && value->data != 0 && count < 20) {
3175 if (outLastRef) *outLastRef = value->data;
3176 uint32_t lastRef = value->data;
3177 uint32_t newFlags = 0;
3178 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3179 outConfig);
3180 if (newIndex == BAD_INDEX) {
3181 return BAD_INDEX;
3182 }
3183 TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3184 (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3185 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3186 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3187 if (newIndex < 0) {
3188 // This can fail if the resource being referenced is a style...
3189 // in this case, just return the reference, and expect the
3190 // caller to deal with.
3191 return blockIndex;
3192 }
3193 blockIndex = newIndex;
3194 count++;
3195 }
3196 return blockIndex;
3197 }
3198
valueToString(const Res_value * value,size_t stringBlock,char16_t tmpBuffer[TMP_BUFFER_SIZE],size_t * outLen)3199 const char16_t* ResTable::valueToString(
3200 const Res_value* value, size_t stringBlock,
3201 char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen)
3202 {
3203 if (!value) {
3204 return NULL;
3205 }
3206 if (value->dataType == value->TYPE_STRING) {
3207 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3208 }
3209 // XXX do int to string conversions.
3210 return NULL;
3211 }
3212
lockBag(uint32_t resID,const bag_entry ** outBag) const3213 ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3214 {
3215 mLock.lock();
3216 ssize_t err = getBagLocked(resID, outBag);
3217 if (err < NO_ERROR) {
3218 //printf("*** get failed! unlocking\n");
3219 mLock.unlock();
3220 }
3221 return err;
3222 }
3223
unlockBag(const bag_entry * bag) const3224 void ResTable::unlockBag(const bag_entry* bag) const
3225 {
3226 //printf("<<< unlockBag %p\n", this);
3227 mLock.unlock();
3228 }
3229
lock() const3230 void ResTable::lock() const
3231 {
3232 mLock.lock();
3233 }
3234
unlock() const3235 void ResTable::unlock() const
3236 {
3237 mLock.unlock();
3238 }
3239
getBagLocked(uint32_t resID,const bag_entry ** outBag,uint32_t * outTypeSpecFlags) const3240 ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3241 uint32_t* outTypeSpecFlags) const
3242 {
3243 if (mError != NO_ERROR) {
3244 return mError;
3245 }
3246
3247 const ssize_t p = getResourcePackageIndex(resID);
3248 const int t = Res_GETTYPE(resID);
3249 const int e = Res_GETENTRY(resID);
3250
3251 if (p < 0) {
3252 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3253 return BAD_INDEX;
3254 }
3255 if (t < 0) {
3256 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3257 return BAD_INDEX;
3258 }
3259
3260 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3261 PackageGroup* const grp = mPackageGroups[p];
3262 if (grp == NULL) {
3263 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3264 return false;
3265 }
3266
3267 if (t >= (int)grp->typeCount) {
3268 ALOGW("Type identifier 0x%x is larger than type count 0x%x",
3269 t+1, (int)grp->typeCount);
3270 return BAD_INDEX;
3271 }
3272
3273 const Package* const basePackage = grp->packages[0];
3274
3275 const Type* const typeConfigs = basePackage->getType(t);
3276
3277 const size_t NENTRY = typeConfigs->entryCount;
3278 if (e >= (int)NENTRY) {
3279 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3280 e, (int)typeConfigs->entryCount);
3281 return BAD_INDEX;
3282 }
3283
3284 // First see if we've already computed this bag...
3285 if (grp->bags) {
3286 bag_set** typeSet = grp->bags[t];
3287 if (typeSet) {
3288 bag_set* set = typeSet[e];
3289 if (set) {
3290 if (set != (bag_set*)0xFFFFFFFF) {
3291 if (outTypeSpecFlags != NULL) {
3292 *outTypeSpecFlags = set->typeSpecFlags;
3293 }
3294 *outBag = (bag_entry*)(set+1);
3295 //ALOGI("Found existing bag for: %p\n", (void*)resID);
3296 return set->numAttrs;
3297 }
3298 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3299 resID);
3300 return BAD_INDEX;
3301 }
3302 }
3303 }
3304
3305 // Bag not found, we need to compute it!
3306 if (!grp->bags) {
3307 grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*));
3308 if (!grp->bags) return NO_MEMORY;
3309 }
3310
3311 bag_set** typeSet = grp->bags[t];
3312 if (!typeSet) {
3313 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3314 if (!typeSet) return NO_MEMORY;
3315 grp->bags[t] = typeSet;
3316 }
3317
3318 // Mark that we are currently working on this one.
3319 typeSet[e] = (bag_set*)0xFFFFFFFF;
3320
3321 // This is what we are building.
3322 bag_set* set = NULL;
3323
3324 TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3325
3326 ResTable_config bestConfig;
3327 memset(&bestConfig, 0, sizeof(bestConfig));
3328
3329 // Now collect all bag attributes from all packages.
3330 size_t ip = grp->packages.size();
3331 while (ip > 0) {
3332 ip--;
3333 int T = t;
3334 int E = e;
3335
3336 const Package* const package = grp->packages[ip];
3337 if (package->header->resourceIDMap) {
3338 uint32_t overlayResID = 0x0;
3339 status_t retval = idmapLookup(package->header->resourceIDMap,
3340 package->header->resourceIDMapSize,
3341 resID, &overlayResID);
3342 if (retval == NO_ERROR && overlayResID != 0x0) {
3343 // for this loop iteration, this is the type and entry we really want
3344 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3345 T = Res_GETTYPE(overlayResID);
3346 E = Res_GETENTRY(overlayResID);
3347 } else {
3348 // resource not present in overlay package, continue with the next package
3349 continue;
3350 }
3351 }
3352
3353 const ResTable_type* type;
3354 const ResTable_entry* entry;
3355 const Type* typeClass;
3356 ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
3357 ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
3358 ALOGV("Resulting offset=%d\n", offset);
3359 if (offset <= 0) {
3360 // No {entry, appropriate config} pair found in package. If this
3361 // package is an overlay package (ip != 0), this simply means the
3362 // overlay package did not specify a default.
3363 // Non-overlay packages are still required to provide a default.
3364 if (offset < 0 && ip == 0) {
3365 if (set) free(set);
3366 return offset;
3367 }
3368 continue;
3369 }
3370
3371 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
3372 ALOGW("Skipping entry %p in package table %d because it is not complex!\n",
3373 (void*)resID, (int)ip);
3374 continue;
3375 }
3376
3377 if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
3378 continue;
3379 }
3380 bestConfig = type->config;
3381 if (set) {
3382 free(set);
3383 set = NULL;
3384 }
3385
3386 const uint16_t entrySize = dtohs(entry->size);
3387 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3388 ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
3389 const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3390 ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
3391
3392 size_t N = count;
3393
3394 TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3395 entrySize, parent, count));
3396
3397 // If this map inherits from another, we need to start
3398 // with its parent's values. Otherwise start out empty.
3399 TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3400 entrySize, parent));
3401 if (parent) {
3402 const bag_entry* parentBag;
3403 uint32_t parentTypeSpecFlags = 0;
3404 const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
3405 const size_t NT = ((NP >= 0) ? NP : 0) + N;
3406 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3407 if (set == NULL) {
3408 return NO_MEMORY;
3409 }
3410 if (NP > 0) {
3411 memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3412 set->numAttrs = NP;
3413 TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3414 } else {
3415 TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3416 set->numAttrs = 0;
3417 }
3418 set->availAttrs = NT;
3419 set->typeSpecFlags = parentTypeSpecFlags;
3420 } else {
3421 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3422 if (set == NULL) {
3423 return NO_MEMORY;
3424 }
3425 set->numAttrs = 0;
3426 set->availAttrs = N;
3427 set->typeSpecFlags = 0;
3428 }
3429
3430 if (typeClass->typeSpecFlags != NULL) {
3431 set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3432 } else {
3433 set->typeSpecFlags = -1;
3434 }
3435
3436 // Now merge in the new attributes...
3437 ssize_t curOff = offset;
3438 const ResTable_map* map;
3439 bag_entry* entries = (bag_entry*)(set+1);
3440 size_t curEntry = 0;
3441 uint32_t pos = 0;
3442 TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3443 set, entries, set->availAttrs));
3444 while (pos < count) {
3445 TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3446
3447 if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
3448 ALOGW("ResTable_map at %d is beyond type chunk data %d",
3449 (int)curOff, dtohl(type->header.size));
3450 return BAD_TYPE;
3451 }
3452 map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
3453 N++;
3454
3455 const uint32_t newName = htodl(map->name.ident);
3456 bool isInside;
3457 uint32_t oldName = 0;
3458 while ((isInside=(curEntry < set->numAttrs))
3459 && (oldName=entries[curEntry].map.name.ident) < newName) {
3460 TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3461 curEntry, entries[curEntry].map.name.ident));
3462 curEntry++;
3463 }
3464
3465 if ((!isInside) || oldName != newName) {
3466 // This is a new attribute... figure out what to do with it.
3467 if (set->numAttrs >= set->availAttrs) {
3468 // Need to alloc more memory...
3469 const size_t newAvail = set->availAttrs+N;
3470 set = (bag_set*)realloc(set,
3471 sizeof(bag_set)
3472 + sizeof(bag_entry)*newAvail);
3473 if (set == NULL) {
3474 return NO_MEMORY;
3475 }
3476 set->availAttrs = newAvail;
3477 entries = (bag_entry*)(set+1);
3478 TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3479 set, entries, set->availAttrs));
3480 }
3481 if (isInside) {
3482 // Going in the middle, need to make space.
3483 memmove(entries+curEntry+1, entries+curEntry,
3484 sizeof(bag_entry)*(set->numAttrs-curEntry));
3485 set->numAttrs++;
3486 }
3487 TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3488 curEntry, newName));
3489 } else {
3490 TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3491 curEntry, oldName));
3492 }
3493
3494 bag_entry* cur = entries+curEntry;
3495
3496 cur->stringBlock = package->header->index;
3497 cur->map.name.ident = newName;
3498 cur->map.value.copyFrom_dtoh(map->value);
3499 TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3500 curEntry, cur, cur->stringBlock, cur->map.name.ident,
3501 cur->map.value.dataType, cur->map.value.data));
3502
3503 // On to the next!
3504 curEntry++;
3505 pos++;
3506 const size_t size = dtohs(map->value.size);
3507 curOff += size + sizeof(*map)-sizeof(map->value);
3508 };
3509 if (curEntry > set->numAttrs) {
3510 set->numAttrs = curEntry;
3511 }
3512 }
3513
3514 // And this is it...
3515 typeSet[e] = set;
3516 if (set) {
3517 if (outTypeSpecFlags != NULL) {
3518 *outTypeSpecFlags = set->typeSpecFlags;
3519 }
3520 *outBag = (bag_entry*)(set+1);
3521 TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3522 return set->numAttrs;
3523 }
3524 return BAD_INDEX;
3525 }
3526
setParameters(const ResTable_config * params)3527 void ResTable::setParameters(const ResTable_config* params)
3528 {
3529 mLock.lock();
3530 TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
3531 mParams = *params;
3532 for (size_t i=0; i<mPackageGroups.size(); i++) {
3533 TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
3534 mPackageGroups[i]->clearBagCache();
3535 }
3536 mLock.unlock();
3537 }
3538
getParameters(ResTable_config * params) const3539 void ResTable::getParameters(ResTable_config* params) const
3540 {
3541 mLock.lock();
3542 *params = mParams;
3543 mLock.unlock();
3544 }
3545
3546 struct id_name_map {
3547 uint32_t id;
3548 size_t len;
3549 char16_t name[6];
3550 };
3551
3552 const static id_name_map ID_NAMES[] = {
3553 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } },
3554 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } },
3555 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } },
3556 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } },
3557 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
3558 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } },
3559 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } },
3560 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } },
3561 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } },
3562 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } },
3563 };
3564
identifierForName(const char16_t * name,size_t nameLen,const char16_t * type,size_t typeLen,const char16_t * package,size_t packageLen,uint32_t * outTypeSpecFlags) const3565 uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
3566 const char16_t* type, size_t typeLen,
3567 const char16_t* package,
3568 size_t packageLen,
3569 uint32_t* outTypeSpecFlags) const
3570 {
3571 TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
3572
3573 // Check for internal resource identifier as the very first thing, so
3574 // that we will always find them even when there are no resources.
3575 if (name[0] == '^') {
3576 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
3577 size_t len;
3578 for (int i=0; i<N; i++) {
3579 const id_name_map* m = ID_NAMES + i;
3580 len = m->len;
3581 if (len != nameLen) {
3582 continue;
3583 }
3584 for (size_t j=1; j<len; j++) {
3585 if (m->name[j] != name[j]) {
3586 goto nope;
3587 }
3588 }
3589 if (outTypeSpecFlags) {
3590 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3591 }
3592 return m->id;
3593 nope:
3594 ;
3595 }
3596 if (nameLen > 7) {
3597 if (name[1] == 'i' && name[2] == 'n'
3598 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
3599 && name[6] == '_') {
3600 int index = atoi(String8(name + 7, nameLen - 7).string());
3601 if (Res_CHECKID(index)) {
3602 ALOGW("Array resource index: %d is too large.",
3603 index);
3604 return 0;
3605 }
3606 if (outTypeSpecFlags) {
3607 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3608 }
3609 return Res_MAKEARRAY(index);
3610 }
3611 }
3612 return 0;
3613 }
3614
3615 if (mError != NO_ERROR) {
3616 return 0;
3617 }
3618
3619 bool fakePublic = false;
3620
3621 // Figure out the package and type we are looking in...
3622
3623 const char16_t* packageEnd = NULL;
3624 const char16_t* typeEnd = NULL;
3625 const char16_t* const nameEnd = name+nameLen;
3626 const char16_t* p = name;
3627 while (p < nameEnd) {
3628 if (*p == ':') packageEnd = p;
3629 else if (*p == '/') typeEnd = p;
3630 p++;
3631 }
3632 if (*name == '@') {
3633 name++;
3634 if (*name == '*') {
3635 fakePublic = true;
3636 name++;
3637 }
3638 }
3639 if (name >= nameEnd) {
3640 return 0;
3641 }
3642
3643 if (packageEnd) {
3644 package = name;
3645 packageLen = packageEnd-name;
3646 name = packageEnd+1;
3647 } else if (!package) {
3648 return 0;
3649 }
3650
3651 if (typeEnd) {
3652 type = name;
3653 typeLen = typeEnd-name;
3654 name = typeEnd+1;
3655 } else if (!type) {
3656 return 0;
3657 }
3658
3659 if (name >= nameEnd) {
3660 return 0;
3661 }
3662 nameLen = nameEnd-name;
3663
3664 TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
3665 String8(type, typeLen).string(),
3666 String8(name, nameLen).string(),
3667 String8(package, packageLen).string()));
3668
3669 const size_t NG = mPackageGroups.size();
3670 for (size_t ig=0; ig<NG; ig++) {
3671 const PackageGroup* group = mPackageGroups[ig];
3672
3673 if (strzcmp16(package, packageLen,
3674 group->name.string(), group->name.size())) {
3675 TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
3676 continue;
3677 }
3678
3679 const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
3680 if (ti < 0) {
3681 TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
3682 continue;
3683 }
3684
3685 const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
3686 if (ei < 0) {
3687 TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
3688 continue;
3689 }
3690
3691 TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
3692
3693 const Type* const typeConfigs = group->packages[0]->getType(ti);
3694 if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
3695 TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
3696 String8(group->name).string(), ti));
3697 }
3698
3699 size_t NTC = typeConfigs->configs.size();
3700 for (size_t tci=0; tci<NTC; tci++) {
3701 const ResTable_type* const ty = typeConfigs->configs[tci];
3702 const uint32_t typeOffset = dtohl(ty->entriesStart);
3703
3704 const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
3705 const uint32_t* const eindex = (const uint32_t*)
3706 (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
3707
3708 const size_t NE = dtohl(ty->entryCount);
3709 for (size_t i=0; i<NE; i++) {
3710 uint32_t offset = dtohl(eindex[i]);
3711 if (offset == ResTable_type::NO_ENTRY) {
3712 continue;
3713 }
3714
3715 offset += typeOffset;
3716
3717 if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
3718 ALOGW("ResTable_entry at %d is beyond type chunk data %d",
3719 offset, dtohl(ty->header.size));
3720 return 0;
3721 }
3722 if ((offset&0x3) != 0) {
3723 ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
3724 (int)offset, (int)group->id, (int)ti+1, (int)i,
3725 String8(package, packageLen).string(),
3726 String8(type, typeLen).string(),
3727 String8(name, nameLen).string());
3728 return 0;
3729 }
3730
3731 const ResTable_entry* const entry = (const ResTable_entry*)
3732 (((const uint8_t*)ty) + offset);
3733 if (dtohs(entry->size) < sizeof(*entry)) {
3734 ALOGW("ResTable_entry size %d is too small", dtohs(entry->size));
3735 return BAD_TYPE;
3736 }
3737
3738 TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
3739 i, ei, dtohl(entry->key.index)));
3740 if (dtohl(entry->key.index) == (size_t)ei) {
3741 if (outTypeSpecFlags) {
3742 *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
3743 if (fakePublic) {
3744 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
3745 }
3746 }
3747 return Res_MAKEID(group->id-1, ti, i);
3748 }
3749 }
3750 }
3751 }
3752
3753 return 0;
3754 }
3755
expandResourceRef(const uint16_t * refStr,size_t refLen,String16 * outPackage,String16 * outType,String16 * outName,const String16 * defType,const String16 * defPackage,const char ** outErrorMsg,bool * outPublicOnly)3756 bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
3757 String16* outPackage,
3758 String16* outType,
3759 String16* outName,
3760 const String16* defType,
3761 const String16* defPackage,
3762 const char** outErrorMsg,
3763 bool* outPublicOnly)
3764 {
3765 const char16_t* packageEnd = NULL;
3766 const char16_t* typeEnd = NULL;
3767 const char16_t* p = refStr;
3768 const char16_t* const end = p + refLen;
3769 while (p < end) {
3770 if (*p == ':') packageEnd = p;
3771 else if (*p == '/') {
3772 typeEnd = p;
3773 break;
3774 }
3775 p++;
3776 }
3777 p = refStr;
3778 if (*p == '@') p++;
3779
3780 if (outPublicOnly != NULL) {
3781 *outPublicOnly = true;
3782 }
3783 if (*p == '*') {
3784 p++;
3785 if (outPublicOnly != NULL) {
3786 *outPublicOnly = false;
3787 }
3788 }
3789
3790 if (packageEnd) {
3791 *outPackage = String16(p, packageEnd-p);
3792 p = packageEnd+1;
3793 } else {
3794 if (!defPackage) {
3795 if (outErrorMsg) {
3796 *outErrorMsg = "No resource package specified";
3797 }
3798 return false;
3799 }
3800 *outPackage = *defPackage;
3801 }
3802 if (typeEnd) {
3803 *outType = String16(p, typeEnd-p);
3804 p = typeEnd+1;
3805 } else {
3806 if (!defType) {
3807 if (outErrorMsg) {
3808 *outErrorMsg = "No resource type specified";
3809 }
3810 return false;
3811 }
3812 *outType = *defType;
3813 }
3814 *outName = String16(p, end-p);
3815 if(**outPackage == 0) {
3816 if(outErrorMsg) {
3817 *outErrorMsg = "Resource package cannot be an empty string";
3818 }
3819 return false;
3820 }
3821 if(**outType == 0) {
3822 if(outErrorMsg) {
3823 *outErrorMsg = "Resource type cannot be an empty string";
3824 }
3825 return false;
3826 }
3827 if(**outName == 0) {
3828 if(outErrorMsg) {
3829 *outErrorMsg = "Resource id cannot be an empty string";
3830 }
3831 return false;
3832 }
3833 return true;
3834 }
3835
get_hex(char c,bool * outError)3836 static uint32_t get_hex(char c, bool* outError)
3837 {
3838 if (c >= '0' && c <= '9') {
3839 return c - '0';
3840 } else if (c >= 'a' && c <= 'f') {
3841 return c - 'a' + 0xa;
3842 } else if (c >= 'A' && c <= 'F') {
3843 return c - 'A' + 0xa;
3844 }
3845 *outError = true;
3846 return 0;
3847 }
3848
3849 struct unit_entry
3850 {
3851 const char* name;
3852 size_t len;
3853 uint8_t type;
3854 uint32_t unit;
3855 float scale;
3856 };
3857
3858 static const unit_entry unitNames[] = {
3859 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
3860 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
3861 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
3862 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
3863 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
3864 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
3865 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
3866 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
3867 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
3868 { NULL, 0, 0, 0, 0 }
3869 };
3870
parse_unit(const char * str,Res_value * outValue,float * outScale,const char ** outEnd)3871 static bool parse_unit(const char* str, Res_value* outValue,
3872 float* outScale, const char** outEnd)
3873 {
3874 const char* end = str;
3875 while (*end != 0 && !isspace((unsigned char)*end)) {
3876 end++;
3877 }
3878 const size_t len = end-str;
3879
3880 const char* realEnd = end;
3881 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
3882 realEnd++;
3883 }
3884 if (*realEnd != 0) {
3885 return false;
3886 }
3887
3888 const unit_entry* cur = unitNames;
3889 while (cur->name) {
3890 if (len == cur->len && strncmp(cur->name, str, len) == 0) {
3891 outValue->dataType = cur->type;
3892 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
3893 *outScale = cur->scale;
3894 *outEnd = end;
3895 //printf("Found unit %s for %s\n", cur->name, str);
3896 return true;
3897 }
3898 cur++;
3899 }
3900
3901 return false;
3902 }
3903
3904
stringToInt(const char16_t * s,size_t len,Res_value * outValue)3905 bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
3906 {
3907 while (len > 0 && isspace16(*s)) {
3908 s++;
3909 len--;
3910 }
3911
3912 if (len <= 0) {
3913 return false;
3914 }
3915
3916 size_t i = 0;
3917 int32_t val = 0;
3918 bool neg = false;
3919
3920 if (*s == '-') {
3921 neg = true;
3922 i++;
3923 }
3924
3925 if (s[i] < '0' || s[i] > '9') {
3926 return false;
3927 }
3928
3929 // Decimal or hex?
3930 if (s[i] == '0' && s[i+1] == 'x') {
3931 if (outValue)
3932 outValue->dataType = outValue->TYPE_INT_HEX;
3933 i += 2;
3934 bool error = false;
3935 while (i < len && !error) {
3936 val = (val*16) + get_hex(s[i], &error);
3937 i++;
3938 }
3939 if (error) {
3940 return false;
3941 }
3942 } else {
3943 if (outValue)
3944 outValue->dataType = outValue->TYPE_INT_DEC;
3945 while (i < len) {
3946 if (s[i] < '0' || s[i] > '9') {
3947 return false;
3948 }
3949 val = (val*10) + s[i]-'0';
3950 i++;
3951 }
3952 }
3953
3954 if (neg) val = -val;
3955
3956 while (i < len && isspace16(s[i])) {
3957 i++;
3958 }
3959
3960 if (i == len) {
3961 if (outValue)
3962 outValue->data = val;
3963 return true;
3964 }
3965
3966 return false;
3967 }
3968
stringToFloat(const char16_t * s,size_t len,Res_value * outValue)3969 bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
3970 {
3971 while (len > 0 && isspace16(*s)) {
3972 s++;
3973 len--;
3974 }
3975
3976 if (len <= 0) {
3977 return false;
3978 }
3979
3980 char buf[128];
3981 int i=0;
3982 while (len > 0 && *s != 0 && i < 126) {
3983 if (*s > 255) {
3984 return false;
3985 }
3986 buf[i++] = *s++;
3987 len--;
3988 }
3989
3990 if (len > 0) {
3991 return false;
3992 }
3993 if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
3994 return false;
3995 }
3996
3997 buf[i] = 0;
3998 const char* end;
3999 float f = strtof(buf, (char**)&end);
4000
4001 if (*end != 0 && !isspace((unsigned char)*end)) {
4002 // Might be a unit...
4003 float scale;
4004 if (parse_unit(end, outValue, &scale, &end)) {
4005 f *= scale;
4006 const bool neg = f < 0;
4007 if (neg) f = -f;
4008 uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4009 uint32_t radix;
4010 uint32_t shift;
4011 if ((bits&0x7fffff) == 0) {
4012 // Always use 23p0 if there is no fraction, just to make
4013 // things easier to read.
4014 radix = Res_value::COMPLEX_RADIX_23p0;
4015 shift = 23;
4016 } else if ((bits&0xffffffffff800000LL) == 0) {
4017 // Magnitude is zero -- can fit in 0 bits of precision.
4018 radix = Res_value::COMPLEX_RADIX_0p23;
4019 shift = 0;
4020 } else if ((bits&0xffffffff80000000LL) == 0) {
4021 // Magnitude can fit in 8 bits of precision.
4022 radix = Res_value::COMPLEX_RADIX_8p15;
4023 shift = 8;
4024 } else if ((bits&0xffffff8000000000LL) == 0) {
4025 // Magnitude can fit in 16 bits of precision.
4026 radix = Res_value::COMPLEX_RADIX_16p7;
4027 shift = 16;
4028 } else {
4029 // Magnitude needs entire range, so no fractional part.
4030 radix = Res_value::COMPLEX_RADIX_23p0;
4031 shift = 23;
4032 }
4033 int32_t mantissa = (int32_t)(
4034 (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4035 if (neg) {
4036 mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4037 }
4038 outValue->data |=
4039 (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4040 | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4041 //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4042 // f * (neg ? -1 : 1), bits, f*(1<<23),
4043 // radix, shift, outValue->data);
4044 return true;
4045 }
4046 return false;
4047 }
4048
4049 while (*end != 0 && isspace((unsigned char)*end)) {
4050 end++;
4051 }
4052
4053 if (*end == 0) {
4054 if (outValue) {
4055 outValue->dataType = outValue->TYPE_FLOAT;
4056 *(float*)(&outValue->data) = f;
4057 return true;
4058 }
4059 }
4060
4061 return false;
4062 }
4063
stringToValue(Res_value * outValue,String16 * outString,const char16_t * s,size_t len,bool preserveSpaces,bool coerceType,uint32_t attrID,const String16 * defType,const String16 * defPackage,Accessor * accessor,void * accessorCookie,uint32_t attrType,bool enforcePrivate) const4064 bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4065 const char16_t* s, size_t len,
4066 bool preserveSpaces, bool coerceType,
4067 uint32_t attrID,
4068 const String16* defType,
4069 const String16* defPackage,
4070 Accessor* accessor,
4071 void* accessorCookie,
4072 uint32_t attrType,
4073 bool enforcePrivate) const
4074 {
4075 bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4076 const char* errorMsg = NULL;
4077
4078 outValue->size = sizeof(Res_value);
4079 outValue->res0 = 0;
4080
4081 // First strip leading/trailing whitespace. Do this before handling
4082 // escapes, so they can be used to force whitespace into the string.
4083 if (!preserveSpaces) {
4084 while (len > 0 && isspace16(*s)) {
4085 s++;
4086 len--;
4087 }
4088 while (len > 0 && isspace16(s[len-1])) {
4089 len--;
4090 }
4091 // If the string ends with '\', then we keep the space after it.
4092 if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4093 len++;
4094 }
4095 }
4096
4097 //printf("Value for: %s\n", String8(s, len).string());
4098
4099 uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4100 uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4101 bool fromAccessor = false;
4102 if (attrID != 0 && !Res_INTERNALID(attrID)) {
4103 const ssize_t p = getResourcePackageIndex(attrID);
4104 const bag_entry* bag;
4105 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4106 //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4107 if (cnt >= 0) {
4108 while (cnt > 0) {
4109 //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4110 switch (bag->map.name.ident) {
4111 case ResTable_map::ATTR_TYPE:
4112 attrType = bag->map.value.data;
4113 break;
4114 case ResTable_map::ATTR_MIN:
4115 attrMin = bag->map.value.data;
4116 break;
4117 case ResTable_map::ATTR_MAX:
4118 attrMax = bag->map.value.data;
4119 break;
4120 case ResTable_map::ATTR_L10N:
4121 l10nReq = bag->map.value.data;
4122 break;
4123 }
4124 bag++;
4125 cnt--;
4126 }
4127 unlockBag(bag);
4128 } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4129 fromAccessor = true;
4130 if (attrType == ResTable_map::TYPE_ENUM
4131 || attrType == ResTable_map::TYPE_FLAGS
4132 || attrType == ResTable_map::TYPE_INTEGER) {
4133 accessor->getAttributeMin(attrID, &attrMin);
4134 accessor->getAttributeMax(attrID, &attrMax);
4135 }
4136 if (localizationSetting) {
4137 l10nReq = accessor->getAttributeL10N(attrID);
4138 }
4139 }
4140 }
4141
4142 const bool canStringCoerce =
4143 coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4144
4145 if (*s == '@') {
4146 outValue->dataType = outValue->TYPE_REFERENCE;
4147
4148 // Note: we don't check attrType here because the reference can
4149 // be to any other type; we just need to count on the client making
4150 // sure the referenced type is correct.
4151
4152 //printf("Looking up ref: %s\n", String8(s, len).string());
4153
4154 // It's a reference!
4155 if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4156 outValue->data = 0;
4157 return true;
4158 } else {
4159 bool createIfNotFound = false;
4160 const char16_t* resourceRefName;
4161 int resourceNameLen;
4162 if (len > 2 && s[1] == '+') {
4163 createIfNotFound = true;
4164 resourceRefName = s + 2;
4165 resourceNameLen = len - 2;
4166 } else if (len > 2 && s[1] == '*') {
4167 enforcePrivate = false;
4168 resourceRefName = s + 2;
4169 resourceNameLen = len - 2;
4170 } else {
4171 createIfNotFound = false;
4172 resourceRefName = s + 1;
4173 resourceNameLen = len - 1;
4174 }
4175 String16 package, type, name;
4176 if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4177 defType, defPackage, &errorMsg)) {
4178 if (accessor != NULL) {
4179 accessor->reportError(accessorCookie, errorMsg);
4180 }
4181 return false;
4182 }
4183
4184 uint32_t specFlags = 0;
4185 uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4186 type.size(), package.string(), package.size(), &specFlags);
4187 if (rid != 0) {
4188 if (enforcePrivate) {
4189 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4190 if (accessor != NULL) {
4191 accessor->reportError(accessorCookie, "Resource is not public.");
4192 }
4193 return false;
4194 }
4195 }
4196 if (!accessor) {
4197 outValue->data = rid;
4198 return true;
4199 }
4200 rid = Res_MAKEID(
4201 accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4202 Res_GETTYPE(rid), Res_GETENTRY(rid));
4203 TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4204 String8(package).string(), String8(type).string(),
4205 String8(name).string(), rid));
4206 outValue->data = rid;
4207 return true;
4208 }
4209
4210 if (accessor) {
4211 uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4212 createIfNotFound);
4213 if (rid != 0) {
4214 TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4215 String8(package).string(), String8(type).string(),
4216 String8(name).string(), rid));
4217 outValue->data = rid;
4218 return true;
4219 }
4220 }
4221 }
4222
4223 if (accessor != NULL) {
4224 accessor->reportError(accessorCookie, "No resource found that matches the given name");
4225 }
4226 return false;
4227 }
4228
4229 // if we got to here, and localization is required and it's not a reference,
4230 // complain and bail.
4231 if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4232 if (localizationSetting) {
4233 if (accessor != NULL) {
4234 accessor->reportError(accessorCookie, "This attribute must be localized.");
4235 }
4236 }
4237 }
4238
4239 if (*s == '#') {
4240 // It's a color! Convert to an integer of the form 0xaarrggbb.
4241 uint32_t color = 0;
4242 bool error = false;
4243 if (len == 4) {
4244 outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4245 color |= 0xFF000000;
4246 color |= get_hex(s[1], &error) << 20;
4247 color |= get_hex(s[1], &error) << 16;
4248 color |= get_hex(s[2], &error) << 12;
4249 color |= get_hex(s[2], &error) << 8;
4250 color |= get_hex(s[3], &error) << 4;
4251 color |= get_hex(s[3], &error);
4252 } else if (len == 5) {
4253 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4254 color |= get_hex(s[1], &error) << 28;
4255 color |= get_hex(s[1], &error) << 24;
4256 color |= get_hex(s[2], &error) << 20;
4257 color |= get_hex(s[2], &error) << 16;
4258 color |= get_hex(s[3], &error) << 12;
4259 color |= get_hex(s[3], &error) << 8;
4260 color |= get_hex(s[4], &error) << 4;
4261 color |= get_hex(s[4], &error);
4262 } else if (len == 7) {
4263 outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4264 color |= 0xFF000000;
4265 color |= get_hex(s[1], &error) << 20;
4266 color |= get_hex(s[2], &error) << 16;
4267 color |= get_hex(s[3], &error) << 12;
4268 color |= get_hex(s[4], &error) << 8;
4269 color |= get_hex(s[5], &error) << 4;
4270 color |= get_hex(s[6], &error);
4271 } else if (len == 9) {
4272 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4273 color |= get_hex(s[1], &error) << 28;
4274 color |= get_hex(s[2], &error) << 24;
4275 color |= get_hex(s[3], &error) << 20;
4276 color |= get_hex(s[4], &error) << 16;
4277 color |= get_hex(s[5], &error) << 12;
4278 color |= get_hex(s[6], &error) << 8;
4279 color |= get_hex(s[7], &error) << 4;
4280 color |= get_hex(s[8], &error);
4281 } else {
4282 error = true;
4283 }
4284 if (!error) {
4285 if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4286 if (!canStringCoerce) {
4287 if (accessor != NULL) {
4288 accessor->reportError(accessorCookie,
4289 "Color types not allowed");
4290 }
4291 return false;
4292 }
4293 } else {
4294 outValue->data = color;
4295 //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4296 return true;
4297 }
4298 } else {
4299 if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4300 if (accessor != NULL) {
4301 accessor->reportError(accessorCookie, "Color value not valid --"
4302 " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4303 }
4304 #if 0
4305 fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4306 "Resource File", //(const char*)in->getPrintableSource(),
4307 String8(*curTag).string(),
4308 String8(s, len).string());
4309 #endif
4310 return false;
4311 }
4312 }
4313 }
4314
4315 if (*s == '?') {
4316 outValue->dataType = outValue->TYPE_ATTRIBUTE;
4317
4318 // Note: we don't check attrType here because the reference can
4319 // be to any other type; we just need to count on the client making
4320 // sure the referenced type is correct.
4321
4322 //printf("Looking up attr: %s\n", String8(s, len).string());
4323
4324 static const String16 attr16("attr");
4325 String16 package, type, name;
4326 if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4327 &attr16, defPackage, &errorMsg)) {
4328 if (accessor != NULL) {
4329 accessor->reportError(accessorCookie, errorMsg);
4330 }
4331 return false;
4332 }
4333
4334 //printf("Pkg: %s, Type: %s, Name: %s\n",
4335 // String8(package).string(), String8(type).string(),
4336 // String8(name).string());
4337 uint32_t specFlags = 0;
4338 uint32_t rid =
4339 identifierForName(name.string(), name.size(),
4340 type.string(), type.size(),
4341 package.string(), package.size(), &specFlags);
4342 if (rid != 0) {
4343 if (enforcePrivate) {
4344 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4345 if (accessor != NULL) {
4346 accessor->reportError(accessorCookie, "Attribute is not public.");
4347 }
4348 return false;
4349 }
4350 }
4351 if (!accessor) {
4352 outValue->data = rid;
4353 return true;
4354 }
4355 rid = Res_MAKEID(
4356 accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4357 Res_GETTYPE(rid), Res_GETENTRY(rid));
4358 //printf("Incl %s:%s/%s: 0x%08x\n",
4359 // String8(package).string(), String8(type).string(),
4360 // String8(name).string(), rid);
4361 outValue->data = rid;
4362 return true;
4363 }
4364
4365 if (accessor) {
4366 uint32_t rid = accessor->getCustomResource(package, type, name);
4367 if (rid != 0) {
4368 //printf("Mine %s:%s/%s: 0x%08x\n",
4369 // String8(package).string(), String8(type).string(),
4370 // String8(name).string(), rid);
4371 outValue->data = rid;
4372 return true;
4373 }
4374 }
4375
4376 if (accessor != NULL) {
4377 accessor->reportError(accessorCookie, "No resource found that matches the given name");
4378 }
4379 return false;
4380 }
4381
4382 if (stringToInt(s, len, outValue)) {
4383 if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4384 // If this type does not allow integers, but does allow floats,
4385 // fall through on this error case because the float type should
4386 // be able to accept any integer value.
4387 if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4388 if (accessor != NULL) {
4389 accessor->reportError(accessorCookie, "Integer types not allowed");
4390 }
4391 return false;
4392 }
4393 } else {
4394 if (((int32_t)outValue->data) < ((int32_t)attrMin)
4395 || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4396 if (accessor != NULL) {
4397 accessor->reportError(accessorCookie, "Integer value out of range");
4398 }
4399 return false;
4400 }
4401 return true;
4402 }
4403 }
4404
4405 if (stringToFloat(s, len, outValue)) {
4406 if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4407 if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4408 return true;
4409 }
4410 if (!canStringCoerce) {
4411 if (accessor != NULL) {
4412 accessor->reportError(accessorCookie, "Dimension types not allowed");
4413 }
4414 return false;
4415 }
4416 } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4417 if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4418 return true;
4419 }
4420 if (!canStringCoerce) {
4421 if (accessor != NULL) {
4422 accessor->reportError(accessorCookie, "Fraction types not allowed");
4423 }
4424 return false;
4425 }
4426 } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4427 if (!canStringCoerce) {
4428 if (accessor != NULL) {
4429 accessor->reportError(accessorCookie, "Float types not allowed");
4430 }
4431 return false;
4432 }
4433 } else {
4434 return true;
4435 }
4436 }
4437
4438 if (len == 4) {
4439 if ((s[0] == 't' || s[0] == 'T') &&
4440 (s[1] == 'r' || s[1] == 'R') &&
4441 (s[2] == 'u' || s[2] == 'U') &&
4442 (s[3] == 'e' || s[3] == 'E')) {
4443 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4444 if (!canStringCoerce) {
4445 if (accessor != NULL) {
4446 accessor->reportError(accessorCookie, "Boolean types not allowed");
4447 }
4448 return false;
4449 }
4450 } else {
4451 outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4452 outValue->data = (uint32_t)-1;
4453 return true;
4454 }
4455 }
4456 }
4457
4458 if (len == 5) {
4459 if ((s[0] == 'f' || s[0] == 'F') &&
4460 (s[1] == 'a' || s[1] == 'A') &&
4461 (s[2] == 'l' || s[2] == 'L') &&
4462 (s[3] == 's' || s[3] == 'S') &&
4463 (s[4] == 'e' || s[4] == 'E')) {
4464 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4465 if (!canStringCoerce) {
4466 if (accessor != NULL) {
4467 accessor->reportError(accessorCookie, "Boolean types not allowed");
4468 }
4469 return false;
4470 }
4471 } else {
4472 outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4473 outValue->data = 0;
4474 return true;
4475 }
4476 }
4477 }
4478
4479 if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4480 const ssize_t p = getResourcePackageIndex(attrID);
4481 const bag_entry* bag;
4482 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4483 //printf("Got %d for enum\n", cnt);
4484 if (cnt >= 0) {
4485 resource_name rname;
4486 while (cnt > 0) {
4487 if (!Res_INTERNALID(bag->map.name.ident)) {
4488 //printf("Trying attr #%08x\n", bag->map.name.ident);
4489 if (getResourceName(bag->map.name.ident, &rname)) {
4490 #if 0
4491 printf("Matching %s against %s (0x%08x)\n",
4492 String8(s, len).string(),
4493 String8(rname.name, rname.nameLen).string(),
4494 bag->map.name.ident);
4495 #endif
4496 if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4497 outValue->dataType = bag->map.value.dataType;
4498 outValue->data = bag->map.value.data;
4499 unlockBag(bag);
4500 return true;
4501 }
4502 }
4503
4504 }
4505 bag++;
4506 cnt--;
4507 }
4508 unlockBag(bag);
4509 }
4510
4511 if (fromAccessor) {
4512 if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4513 return true;
4514 }
4515 }
4516 }
4517
4518 if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4519 const ssize_t p = getResourcePackageIndex(attrID);
4520 const bag_entry* bag;
4521 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4522 //printf("Got %d for flags\n", cnt);
4523 if (cnt >= 0) {
4524 bool failed = false;
4525 resource_name rname;
4526 outValue->dataType = Res_value::TYPE_INT_HEX;
4527 outValue->data = 0;
4528 const char16_t* end = s + len;
4529 const char16_t* pos = s;
4530 while (pos < end && !failed) {
4531 const char16_t* start = pos;
4532 pos++;
4533 while (pos < end && *pos != '|') {
4534 pos++;
4535 }
4536 //printf("Looking for: %s\n", String8(start, pos-start).string());
4537 const bag_entry* bagi = bag;
4538 ssize_t i;
4539 for (i=0; i<cnt; i++, bagi++) {
4540 if (!Res_INTERNALID(bagi->map.name.ident)) {
4541 //printf("Trying attr #%08x\n", bagi->map.name.ident);
4542 if (getResourceName(bagi->map.name.ident, &rname)) {
4543 #if 0
4544 printf("Matching %s against %s (0x%08x)\n",
4545 String8(start,pos-start).string(),
4546 String8(rname.name, rname.nameLen).string(),
4547 bagi->map.name.ident);
4548 #endif
4549 if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
4550 outValue->data |= bagi->map.value.data;
4551 break;
4552 }
4553 }
4554 }
4555 }
4556 if (i >= cnt) {
4557 // Didn't find this flag identifier.
4558 failed = true;
4559 }
4560 if (pos < end) {
4561 pos++;
4562 }
4563 }
4564 unlockBag(bag);
4565 if (!failed) {
4566 //printf("Final flag value: 0x%lx\n", outValue->data);
4567 return true;
4568 }
4569 }
4570
4571
4572 if (fromAccessor) {
4573 if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
4574 //printf("Final flag value: 0x%lx\n", outValue->data);
4575 return true;
4576 }
4577 }
4578 }
4579
4580 if ((attrType&ResTable_map::TYPE_STRING) == 0) {
4581 if (accessor != NULL) {
4582 accessor->reportError(accessorCookie, "String types not allowed");
4583 }
4584 return false;
4585 }
4586
4587 // Generic string handling...
4588 outValue->dataType = outValue->TYPE_STRING;
4589 if (outString) {
4590 bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
4591 if (accessor != NULL) {
4592 accessor->reportError(accessorCookie, errorMsg);
4593 }
4594 return failed;
4595 }
4596
4597 return true;
4598 }
4599
collectString(String16 * outString,const char16_t * s,size_t len,bool preserveSpaces,const char ** outErrorMsg,bool append)4600 bool ResTable::collectString(String16* outString,
4601 const char16_t* s, size_t len,
4602 bool preserveSpaces,
4603 const char** outErrorMsg,
4604 bool append)
4605 {
4606 String16 tmp;
4607
4608 char quoted = 0;
4609 const char16_t* p = s;
4610 while (p < (s+len)) {
4611 while (p < (s+len)) {
4612 const char16_t c = *p;
4613 if (c == '\\') {
4614 break;
4615 }
4616 if (!preserveSpaces) {
4617 if (quoted == 0 && isspace16(c)
4618 && (c != ' ' || isspace16(*(p+1)))) {
4619 break;
4620 }
4621 if (c == '"' && (quoted == 0 || quoted == '"')) {
4622 break;
4623 }
4624 if (c == '\'' && (quoted == 0 || quoted == '\'')) {
4625 /*
4626 * In practice, when people write ' instead of \'
4627 * in a string, they are doing it by accident
4628 * instead of really meaning to use ' as a quoting
4629 * character. Warn them so they don't lose it.
4630 */
4631 if (outErrorMsg) {
4632 *outErrorMsg = "Apostrophe not preceded by \\";
4633 }
4634 return false;
4635 }
4636 }
4637 p++;
4638 }
4639 if (p < (s+len)) {
4640 if (p > s) {
4641 tmp.append(String16(s, p-s));
4642 }
4643 if (!preserveSpaces && (*p == '"' || *p == '\'')) {
4644 if (quoted == 0) {
4645 quoted = *p;
4646 } else {
4647 quoted = 0;
4648 }
4649 p++;
4650 } else if (!preserveSpaces && isspace16(*p)) {
4651 // Space outside of a quote -- consume all spaces and
4652 // leave a single plain space char.
4653 tmp.append(String16(" "));
4654 p++;
4655 while (p < (s+len) && isspace16(*p)) {
4656 p++;
4657 }
4658 } else if (*p == '\\') {
4659 p++;
4660 if (p < (s+len)) {
4661 switch (*p) {
4662 case 't':
4663 tmp.append(String16("\t"));
4664 break;
4665 case 'n':
4666 tmp.append(String16("\n"));
4667 break;
4668 case '#':
4669 tmp.append(String16("#"));
4670 break;
4671 case '@':
4672 tmp.append(String16("@"));
4673 break;
4674 case '?':
4675 tmp.append(String16("?"));
4676 break;
4677 case '"':
4678 tmp.append(String16("\""));
4679 break;
4680 case '\'':
4681 tmp.append(String16("'"));
4682 break;
4683 case '\\':
4684 tmp.append(String16("\\"));
4685 break;
4686 case 'u':
4687 {
4688 char16_t chr = 0;
4689 int i = 0;
4690 while (i < 4 && p[1] != 0) {
4691 p++;
4692 i++;
4693 int c;
4694 if (*p >= '0' && *p <= '9') {
4695 c = *p - '0';
4696 } else if (*p >= 'a' && *p <= 'f') {
4697 c = *p - 'a' + 10;
4698 } else if (*p >= 'A' && *p <= 'F') {
4699 c = *p - 'A' + 10;
4700 } else {
4701 if (outErrorMsg) {
4702 *outErrorMsg = "Bad character in \\u unicode escape sequence";
4703 }
4704 return false;
4705 }
4706 chr = (chr<<4) | c;
4707 }
4708 tmp.append(String16(&chr, 1));
4709 } break;
4710 default:
4711 // ignore unknown escape chars.
4712 break;
4713 }
4714 p++;
4715 }
4716 }
4717 len -= (p-s);
4718 s = p;
4719 }
4720 }
4721
4722 if (tmp.size() != 0) {
4723 if (len > 0) {
4724 tmp.append(String16(s, len));
4725 }
4726 if (append) {
4727 outString->append(tmp);
4728 } else {
4729 outString->setTo(tmp);
4730 }
4731 } else {
4732 if (append) {
4733 outString->append(String16(s, len));
4734 } else {
4735 outString->setTo(s, len);
4736 }
4737 }
4738
4739 return true;
4740 }
4741
getBasePackageCount() const4742 size_t ResTable::getBasePackageCount() const
4743 {
4744 if (mError != NO_ERROR) {
4745 return 0;
4746 }
4747 return mPackageGroups.size();
4748 }
4749
getBasePackageName(size_t idx) const4750 const char16_t* ResTable::getBasePackageName(size_t idx) const
4751 {
4752 if (mError != NO_ERROR) {
4753 return 0;
4754 }
4755 LOG_FATAL_IF(idx >= mPackageGroups.size(),
4756 "Requested package index %d past package count %d",
4757 (int)idx, (int)mPackageGroups.size());
4758 return mPackageGroups[idx]->name.string();
4759 }
4760
getBasePackageId(size_t idx) const4761 uint32_t ResTable::getBasePackageId(size_t idx) const
4762 {
4763 if (mError != NO_ERROR) {
4764 return 0;
4765 }
4766 LOG_FATAL_IF(idx >= mPackageGroups.size(),
4767 "Requested package index %d past package count %d",
4768 (int)idx, (int)mPackageGroups.size());
4769 return mPackageGroups[idx]->id;
4770 }
4771
getTableCount() const4772 size_t ResTable::getTableCount() const
4773 {
4774 return mHeaders.size();
4775 }
4776
getTableStringBlock(size_t index) const4777 const ResStringPool* ResTable::getTableStringBlock(size_t index) const
4778 {
4779 return &mHeaders[index]->values;
4780 }
4781
getTableCookie(size_t index) const4782 void* ResTable::getTableCookie(size_t index) const
4783 {
4784 return mHeaders[index]->cookie;
4785 }
4786
getConfigurations(Vector<ResTable_config> * configs) const4787 void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
4788 {
4789 const size_t I = mPackageGroups.size();
4790 for (size_t i=0; i<I; i++) {
4791 const PackageGroup* packageGroup = mPackageGroups[i];
4792 const size_t J = packageGroup->packages.size();
4793 for (size_t j=0; j<J; j++) {
4794 const Package* package = packageGroup->packages[j];
4795 const size_t K = package->types.size();
4796 for (size_t k=0; k<K; k++) {
4797 const Type* type = package->types[k];
4798 if (type == NULL) continue;
4799 const size_t L = type->configs.size();
4800 for (size_t l=0; l<L; l++) {
4801 const ResTable_type* config = type->configs[l];
4802 const ResTable_config* cfg = &config->config;
4803 // only insert unique
4804 const size_t M = configs->size();
4805 size_t m;
4806 for (m=0; m<M; m++) {
4807 if (0 == (*configs)[m].compare(*cfg)) {
4808 break;
4809 }
4810 }
4811 // if we didn't find it
4812 if (m == M) {
4813 configs->add(*cfg);
4814 }
4815 }
4816 }
4817 }
4818 }
4819 }
4820
getLocales(Vector<String8> * locales) const4821 void ResTable::getLocales(Vector<String8>* locales) const
4822 {
4823 Vector<ResTable_config> configs;
4824 ALOGV("calling getConfigurations");
4825 getConfigurations(&configs);
4826 ALOGV("called getConfigurations size=%d", (int)configs.size());
4827 const size_t I = configs.size();
4828 for (size_t i=0; i<I; i++) {
4829 char locale[6];
4830 configs[i].getLocale(locale);
4831 const size_t J = locales->size();
4832 size_t j;
4833 for (j=0; j<J; j++) {
4834 if (0 == strcmp(locale, (*locales)[j].string())) {
4835 break;
4836 }
4837 }
4838 if (j == J) {
4839 locales->add(String8(locale));
4840 }
4841 }
4842 }
4843
getEntry(const Package * package,int typeIndex,int entryIndex,const ResTable_config * config,const ResTable_type ** outType,const ResTable_entry ** outEntry,const Type ** outTypeClass) const4844 ssize_t ResTable::getEntry(
4845 const Package* package, int typeIndex, int entryIndex,
4846 const ResTable_config* config,
4847 const ResTable_type** outType, const ResTable_entry** outEntry,
4848 const Type** outTypeClass) const
4849 {
4850 ALOGV("Getting entry from package %p\n", package);
4851 const ResTable_package* const pkg = package->package;
4852
4853 const Type* allTypes = package->getType(typeIndex);
4854 ALOGV("allTypes=%p\n", allTypes);
4855 if (allTypes == NULL) {
4856 ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
4857 return 0;
4858 }
4859
4860 if ((size_t)entryIndex >= allTypes->entryCount) {
4861 ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
4862 entryIndex, (int)allTypes->entryCount);
4863 return BAD_TYPE;
4864 }
4865
4866 const ResTable_type* type = NULL;
4867 uint32_t offset = ResTable_type::NO_ENTRY;
4868 ResTable_config bestConfig;
4869 memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
4870
4871 const size_t NT = allTypes->configs.size();
4872 for (size_t i=0; i<NT; i++) {
4873 const ResTable_type* const thisType = allTypes->configs[i];
4874 if (thisType == NULL) continue;
4875
4876 ResTable_config thisConfig;
4877 thisConfig.copyFromDtoH(thisType->config);
4878
4879 TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n",
4880 entryIndex, typeIndex+1, dtohl(thisType->config.size),
4881 thisConfig.toString().string()));
4882
4883 // Check to make sure this one is valid for the current parameters.
4884 if (config && !thisConfig.match(*config)) {
4885 TABLE_GETENTRY(ALOGI("Does not match config!\n"));
4886 continue;
4887 }
4888
4889 // Check if there is the desired entry in this type.
4890
4891 const uint8_t* const end = ((const uint8_t*)thisType)
4892 + dtohl(thisType->header.size);
4893 const uint32_t* const eindex = (const uint32_t*)
4894 (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
4895
4896 uint32_t thisOffset = dtohl(eindex[entryIndex]);
4897 if (thisOffset == ResTable_type::NO_ENTRY) {
4898 TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n"));
4899 continue;
4900 }
4901
4902 if (type != NULL) {
4903 // Check if this one is less specific than the last found. If so,
4904 // we will skip it. We check starting with things we most care
4905 // about to those we least care about.
4906 if (!thisConfig.isBetterThan(bestConfig, config)) {
4907 TABLE_GETENTRY(ALOGI("This config is worse than last!\n"));
4908 continue;
4909 }
4910 }
4911
4912 type = thisType;
4913 offset = thisOffset;
4914 bestConfig = thisConfig;
4915 TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n"));
4916 if (!config) break;
4917 }
4918
4919 if (type == NULL) {
4920 TABLE_GETENTRY(ALOGI("No value found for requested entry!\n"));
4921 return BAD_INDEX;
4922 }
4923
4924 offset += dtohl(type->entriesStart);
4925 TABLE_NOISY(aout << "Looking in resource table " << package->header->header
4926 << ", typeOff="
4927 << (void*)(((const char*)type)-((const char*)package->header->header))
4928 << ", offset=" << (void*)offset << endl);
4929
4930 if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
4931 ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
4932 offset, dtohl(type->header.size));
4933 return BAD_TYPE;
4934 }
4935 if ((offset&0x3) != 0) {
4936 ALOGW("ResTable_entry at 0x%x is not on an integer boundary",
4937 offset);
4938 return BAD_TYPE;
4939 }
4940
4941 const ResTable_entry* const entry = (const ResTable_entry*)
4942 (((const uint8_t*)type) + offset);
4943 if (dtohs(entry->size) < sizeof(*entry)) {
4944 ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
4945 return BAD_TYPE;
4946 }
4947
4948 *outType = type;
4949 *outEntry = entry;
4950 if (outTypeClass != NULL) {
4951 *outTypeClass = allTypes;
4952 }
4953 return offset + dtohs(entry->size);
4954 }
4955
parsePackage(const ResTable_package * const pkg,const Header * const header,uint32_t idmap_id)4956 status_t ResTable::parsePackage(const ResTable_package* const pkg,
4957 const Header* const header, uint32_t idmap_id)
4958 {
4959 const uint8_t* base = (const uint8_t*)pkg;
4960 status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
4961 header->dataEnd, "ResTable_package");
4962 if (err != NO_ERROR) {
4963 return (mError=err);
4964 }
4965
4966 const size_t pkgSize = dtohl(pkg->header.size);
4967
4968 if (dtohl(pkg->typeStrings) >= pkgSize) {
4969 ALOGW("ResTable_package type strings at %p are past chunk size %p.",
4970 (void*)dtohl(pkg->typeStrings), (void*)pkgSize);
4971 return (mError=BAD_TYPE);
4972 }
4973 if ((dtohl(pkg->typeStrings)&0x3) != 0) {
4974 ALOGW("ResTable_package type strings at %p is not on an integer boundary.",
4975 (void*)dtohl(pkg->typeStrings));
4976 return (mError=BAD_TYPE);
4977 }
4978 if (dtohl(pkg->keyStrings) >= pkgSize) {
4979 ALOGW("ResTable_package key strings at %p are past chunk size %p.",
4980 (void*)dtohl(pkg->keyStrings), (void*)pkgSize);
4981 return (mError=BAD_TYPE);
4982 }
4983 if ((dtohl(pkg->keyStrings)&0x3) != 0) {
4984 ALOGW("ResTable_package key strings at %p is not on an integer boundary.",
4985 (void*)dtohl(pkg->keyStrings));
4986 return (mError=BAD_TYPE);
4987 }
4988
4989 Package* package = NULL;
4990 PackageGroup* group = NULL;
4991 uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
4992 // If at this point id == 0, pkg is an overlay package without a
4993 // corresponding idmap. During regular usage, overlay packages are
4994 // always loaded alongside their idmaps, but during idmap creation
4995 // the package is temporarily loaded by itself.
4996 if (id < 256) {
4997
4998 package = new Package(this, header, pkg);
4999 if (package == NULL) {
5000 return (mError=NO_MEMORY);
5001 }
5002
5003 size_t idx = mPackageMap[id];
5004 if (idx == 0) {
5005 idx = mPackageGroups.size()+1;
5006
5007 char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5008 strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5009 group = new PackageGroup(this, String16(tmpName), id);
5010 if (group == NULL) {
5011 delete package;
5012 return (mError=NO_MEMORY);
5013 }
5014
5015 err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5016 header->dataEnd-(base+dtohl(pkg->typeStrings)));
5017 if (err != NO_ERROR) {
5018 delete group;
5019 delete package;
5020 return (mError=err);
5021 }
5022 err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5023 header->dataEnd-(base+dtohl(pkg->keyStrings)));
5024 if (err != NO_ERROR) {
5025 delete group;
5026 delete package;
5027 return (mError=err);
5028 }
5029
5030 //printf("Adding new package id %d at index %d\n", id, idx);
5031 err = mPackageGroups.add(group);
5032 if (err < NO_ERROR) {
5033 return (mError=err);
5034 }
5035 group->basePackage = package;
5036
5037 mPackageMap[id] = (uint8_t)idx;
5038 } else {
5039 group = mPackageGroups.itemAt(idx-1);
5040 if (group == NULL) {
5041 return (mError=UNKNOWN_ERROR);
5042 }
5043 }
5044 err = group->packages.add(package);
5045 if (err < NO_ERROR) {
5046 return (mError=err);
5047 }
5048 } else {
5049 LOG_ALWAYS_FATAL("Package id out of range");
5050 return NO_ERROR;
5051 }
5052
5053
5054 // Iterate through all chunks.
5055 size_t curPackage = 0;
5056
5057 const ResChunk_header* chunk =
5058 (const ResChunk_header*)(((const uint8_t*)pkg)
5059 + dtohs(pkg->header.headerSize));
5060 const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5061 while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5062 ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5063 TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5064 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5065 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5066 const size_t csize = dtohl(chunk->size);
5067 const uint16_t ctype = dtohs(chunk->type);
5068 if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5069 const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5070 err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5071 endPos, "ResTable_typeSpec");
5072 if (err != NO_ERROR) {
5073 return (mError=err);
5074 }
5075
5076 const size_t typeSpecSize = dtohl(typeSpec->header.size);
5077
5078 LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5079 (void*)(base-(const uint8_t*)chunk),
5080 dtohs(typeSpec->header.type),
5081 dtohs(typeSpec->header.headerSize),
5082 (void*)typeSize));
5083 // look for block overrun or int overflow when multiplying by 4
5084 if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5085 || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
5086 > typeSpecSize)) {
5087 ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5088 (void*)(dtohs(typeSpec->header.headerSize)
5089 +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
5090 (void*)typeSpecSize);
5091 return (mError=BAD_TYPE);
5092 }
5093
5094 if (typeSpec->id == 0) {
5095 ALOGW("ResTable_type has an id of 0.");
5096 return (mError=BAD_TYPE);
5097 }
5098
5099 while (package->types.size() < typeSpec->id) {
5100 package->types.add(NULL);
5101 }
5102 Type* t = package->types[typeSpec->id-1];
5103 if (t == NULL) {
5104 t = new Type(header, package, dtohl(typeSpec->entryCount));
5105 package->types.editItemAt(typeSpec->id-1) = t;
5106 } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
5107 ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5108 (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
5109 return (mError=BAD_TYPE);
5110 }
5111 t->typeSpecFlags = (const uint32_t*)(
5112 ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5113 t->typeSpec = typeSpec;
5114
5115 } else if (ctype == RES_TABLE_TYPE_TYPE) {
5116 const ResTable_type* type = (const ResTable_type*)(chunk);
5117 err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5118 endPos, "ResTable_type");
5119 if (err != NO_ERROR) {
5120 return (mError=err);
5121 }
5122
5123 const size_t typeSize = dtohl(type->header.size);
5124
5125 LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5126 (void*)(base-(const uint8_t*)chunk),
5127 dtohs(type->header.type),
5128 dtohs(type->header.headerSize),
5129 (void*)typeSize));
5130 if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
5131 > typeSize) {
5132 ALOGW("ResTable_type entry index to %p extends beyond chunk end %p.",
5133 (void*)(dtohs(type->header.headerSize)
5134 +(sizeof(uint32_t)*dtohl(type->entryCount))),
5135 (void*)typeSize);
5136 return (mError=BAD_TYPE);
5137 }
5138 if (dtohl(type->entryCount) != 0
5139 && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5140 ALOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.",
5141 (void*)dtohl(type->entriesStart), (void*)typeSize);
5142 return (mError=BAD_TYPE);
5143 }
5144 if (type->id == 0) {
5145 ALOGW("ResTable_type has an id of 0.");
5146 return (mError=BAD_TYPE);
5147 }
5148
5149 while (package->types.size() < type->id) {
5150 package->types.add(NULL);
5151 }
5152 Type* t = package->types[type->id-1];
5153 if (t == NULL) {
5154 t = new Type(header, package, dtohl(type->entryCount));
5155 package->types.editItemAt(type->id-1) = t;
5156 } else if (dtohl(type->entryCount) != t->entryCount) {
5157 ALOGW("ResTable_type entry count inconsistent: given %d, previously %d",
5158 (int)dtohl(type->entryCount), (int)t->entryCount);
5159 return (mError=BAD_TYPE);
5160 }
5161
5162 TABLE_GETENTRY(
5163 ResTable_config thisConfig;
5164 thisConfig.copyFromDtoH(type->config);
5165 ALOGI("Adding config to type %d: %s\n",
5166 type->id, thisConfig.toString().string()));
5167 t->configs.add(type);
5168 } else {
5169 status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5170 endPos, "ResTable_package:unknown");
5171 if (err != NO_ERROR) {
5172 return (mError=err);
5173 }
5174 }
5175 chunk = (const ResChunk_header*)
5176 (((const uint8_t*)chunk) + csize);
5177 }
5178
5179 if (group->typeCount == 0) {
5180 group->typeCount = package->types.size();
5181 }
5182
5183 return NO_ERROR;
5184 }
5185
createIdmap(const ResTable & overlay,uint32_t originalCrc,uint32_t overlayCrc,void ** outData,size_t * outSize) const5186 status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
5187 void** outData, size_t* outSize) const
5188 {
5189 // see README for details on the format of map
5190 if (mPackageGroups.size() == 0) {
5191 return UNKNOWN_ERROR;
5192 }
5193 if (mPackageGroups[0]->packages.size() == 0) {
5194 return UNKNOWN_ERROR;
5195 }
5196
5197 Vector<Vector<uint32_t> > map;
5198 const PackageGroup* pg = mPackageGroups[0];
5199 const Package* pkg = pg->packages[0];
5200 size_t typeCount = pkg->types.size();
5201 // starting size is header + first item (number of types in map)
5202 *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
5203 const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5204 const uint32_t pkg_id = pkg->package->id << 24;
5205
5206 for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
5207 ssize_t first = -1;
5208 ssize_t last = -1;
5209 const Type* typeConfigs = pkg->getType(typeIndex);
5210 ssize_t mapIndex = map.add();
5211 if (mapIndex < 0) {
5212 return NO_MEMORY;
5213 }
5214 Vector<uint32_t>& vector = map.editItemAt(mapIndex);
5215 for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5216 uint32_t resID = pkg_id
5217 | (0x00ff0000 & ((typeIndex+1)<<16))
5218 | (0x0000ffff & (entryIndex));
5219 resource_name resName;
5220 if (!this->getResourceName(resID, &resName)) {
5221 ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID);
5222 // add dummy value, or trimming leading/trailing zeroes later will fail
5223 vector.push(0);
5224 continue;
5225 }
5226
5227 const String16 overlayType(resName.type, resName.typeLen);
5228 const String16 overlayName(resName.name, resName.nameLen);
5229 uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5230 overlayName.size(),
5231 overlayType.string(),
5232 overlayType.size(),
5233 overlayPackage.string(),
5234 overlayPackage.size());
5235 if (overlayResID != 0) {
5236 overlayResID = pkg_id | (0x00ffffff & overlayResID);
5237 last = Res_GETENTRY(resID);
5238 if (first == -1) {
5239 first = Res_GETENTRY(resID);
5240 }
5241 }
5242 vector.push(overlayResID);
5243 #if 0
5244 if (overlayResID != 0) {
5245 ALOGD("%s/%s 0x%08x -> 0x%08x\n",
5246 String8(String16(resName.type)).string(),
5247 String8(String16(resName.name)).string(),
5248 resID, overlayResID);
5249 }
5250 #endif
5251 }
5252
5253 if (first != -1) {
5254 // shave off trailing entries which lack overlay values
5255 const size_t last_past_one = last + 1;
5256 if (last_past_one < vector.size()) {
5257 vector.removeItemsAt(last_past_one, vector.size() - last_past_one);
5258 }
5259 // shave off leading entries which lack overlay values
5260 vector.removeItemsAt(0, first);
5261 // store offset to first overlaid resource ID of this type
5262 vector.insertAt((uint32_t)first, 0, 1);
5263 // reserve space for number and offset of entries, and the actual entries
5264 *outSize += (2 + vector.size()) * sizeof(uint32_t);
5265 } else {
5266 // no entries of current type defined in overlay package
5267 vector.clear();
5268 // reserve space for type offset
5269 *outSize += 1 * sizeof(uint32_t);
5270 }
5271 }
5272
5273 if ((*outData = malloc(*outSize)) == NULL) {
5274 return NO_MEMORY;
5275 }
5276 uint32_t* data = (uint32_t*)*outData;
5277 *data++ = htodl(IDMAP_MAGIC);
5278 *data++ = htodl(originalCrc);
5279 *data++ = htodl(overlayCrc);
5280 const size_t mapSize = map.size();
5281 *data++ = htodl(mapSize);
5282 size_t offset = mapSize;
5283 for (size_t i = 0; i < mapSize; ++i) {
5284 const Vector<uint32_t>& vector = map.itemAt(i);
5285 const size_t N = vector.size();
5286 if (N == 0) {
5287 *data++ = htodl(0);
5288 } else {
5289 offset++;
5290 *data++ = htodl(offset);
5291 offset += N;
5292 }
5293 }
5294 for (size_t i = 0; i < mapSize; ++i) {
5295 const Vector<uint32_t>& vector = map.itemAt(i);
5296 const size_t N = vector.size();
5297 if (N == 0) {
5298 continue;
5299 }
5300 if (N == 1) { // vector expected to hold (offset) + (N > 0 entries)
5301 ALOGW("idmap: type %d supposedly has entries, but no entries found\n", i);
5302 return UNKNOWN_ERROR;
5303 }
5304 *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
5305 for (size_t j = 0; j < N; ++j) {
5306 const uint32_t& overlayResID = vector.itemAt(j);
5307 *data++ = htodl(overlayResID);
5308 }
5309 }
5310
5311 return NO_ERROR;
5312 }
5313
getIdmapInfo(const void * idmap,size_t sizeBytes,uint32_t * pOriginalCrc,uint32_t * pOverlayCrc)5314 bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
5315 uint32_t* pOriginalCrc, uint32_t* pOverlayCrc)
5316 {
5317 const uint32_t* map = (const uint32_t*)idmap;
5318 if (!assertIdmapHeader(map, sizeBytes)) {
5319 return false;
5320 }
5321 *pOriginalCrc = map[1];
5322 *pOverlayCrc = map[2];
5323 return true;
5324 }
5325
5326
5327 #ifndef HAVE_ANDROID_OS
5328 #define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
5329
5330 #define CHAR16_ARRAY_EQ(constant, var, len) \
5331 ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
5332
print_complex(uint32_t complex,bool isFraction)5333 void print_complex(uint32_t complex, bool isFraction)
5334 {
5335 const float MANTISSA_MULT =
5336 1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
5337 const float RADIX_MULTS[] = {
5338 1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
5339 1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
5340 };
5341
5342 float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
5343 <<Res_value::COMPLEX_MANTISSA_SHIFT))
5344 * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
5345 & Res_value::COMPLEX_RADIX_MASK];
5346 printf("%f", value);
5347
5348 if (!isFraction) {
5349 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5350 case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
5351 case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
5352 case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
5353 case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
5354 case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
5355 case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
5356 default: printf(" (unknown unit)"); break;
5357 }
5358 } else {
5359 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5360 case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
5361 case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
5362 default: printf(" (unknown unit)"); break;
5363 }
5364 }
5365 }
5366
5367 // Normalize a string for output
normalizeForOutput(const char * input)5368 String8 ResTable::normalizeForOutput( const char *input )
5369 {
5370 String8 ret;
5371 char buff[2];
5372 buff[1] = '\0';
5373
5374 while (*input != '\0') {
5375 switch (*input) {
5376 // All interesting characters are in the ASCII zone, so we are making our own lives
5377 // easier by scanning the string one byte at a time.
5378 case '\\':
5379 ret += "\\\\";
5380 break;
5381 case '\n':
5382 ret += "\\n";
5383 break;
5384 case '"':
5385 ret += "\\\"";
5386 break;
5387 default:
5388 buff[0] = *input;
5389 ret += buff;
5390 break;
5391 }
5392
5393 input++;
5394 }
5395
5396 return ret;
5397 }
5398
print_value(const Package * pkg,const Res_value & value) const5399 void ResTable::print_value(const Package* pkg, const Res_value& value) const
5400 {
5401 if (value.dataType == Res_value::TYPE_NULL) {
5402 printf("(null)\n");
5403 } else if (value.dataType == Res_value::TYPE_REFERENCE) {
5404 printf("(reference) 0x%08x\n", value.data);
5405 } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
5406 printf("(attribute) 0x%08x\n", value.data);
5407 } else if (value.dataType == Res_value::TYPE_STRING) {
5408 size_t len;
5409 const char* str8 = pkg->header->values.string8At(
5410 value.data, &len);
5411 if (str8 != NULL) {
5412 printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
5413 } else {
5414 const char16_t* str16 = pkg->header->values.stringAt(
5415 value.data, &len);
5416 if (str16 != NULL) {
5417 printf("(string16) \"%s\"\n",
5418 normalizeForOutput(String8(str16, len).string()).string());
5419 } else {
5420 printf("(string) null\n");
5421 }
5422 }
5423 } else if (value.dataType == Res_value::TYPE_FLOAT) {
5424 printf("(float) %g\n", *(const float*)&value.data);
5425 } else if (value.dataType == Res_value::TYPE_DIMENSION) {
5426 printf("(dimension) ");
5427 print_complex(value.data, false);
5428 printf("\n");
5429 } else if (value.dataType == Res_value::TYPE_FRACTION) {
5430 printf("(fraction) ");
5431 print_complex(value.data, true);
5432 printf("\n");
5433 } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
5434 || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
5435 printf("(color) #%08x\n", value.data);
5436 } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
5437 printf("(boolean) %s\n", value.data ? "true" : "false");
5438 } else if (value.dataType >= Res_value::TYPE_FIRST_INT
5439 || value.dataType <= Res_value::TYPE_LAST_INT) {
5440 printf("(int) 0x%08x or %d\n", value.data, value.data);
5441 } else {
5442 printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
5443 (int)value.dataType, (int)value.data,
5444 (int)value.size, (int)value.res0);
5445 }
5446 }
5447
print(bool inclValues) const5448 void ResTable::print(bool inclValues) const
5449 {
5450 if (mError != 0) {
5451 printf("mError=0x%x (%s)\n", mError, strerror(mError));
5452 }
5453 #if 0
5454 printf("mParams=%c%c-%c%c,\n",
5455 mParams.language[0], mParams.language[1],
5456 mParams.country[0], mParams.country[1]);
5457 #endif
5458 size_t pgCount = mPackageGroups.size();
5459 printf("Package Groups (%d)\n", (int)pgCount);
5460 for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
5461 const PackageGroup* pg = mPackageGroups[pgIndex];
5462 printf("Package Group %d id=%d packageCount=%d name=%s\n",
5463 (int)pgIndex, pg->id, (int)pg->packages.size(),
5464 String8(pg->name).string());
5465
5466 size_t pkgCount = pg->packages.size();
5467 for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
5468 const Package* pkg = pg->packages[pkgIndex];
5469 size_t typeCount = pkg->types.size();
5470 printf(" Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
5471 pkg->package->id, String8(String16(pkg->package->name)).string(),
5472 (int)typeCount);
5473 for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
5474 const Type* typeConfigs = pkg->getType(typeIndex);
5475 if (typeConfigs == NULL) {
5476 printf(" type %d NULL\n", (int)typeIndex);
5477 continue;
5478 }
5479 const size_t NTC = typeConfigs->configs.size();
5480 printf(" type %d configCount=%d entryCount=%d\n",
5481 (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
5482 if (typeConfigs->typeSpecFlags != NULL) {
5483 for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
5484 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5485 | (0x00ff0000 & ((typeIndex+1)<<16))
5486 | (0x0000ffff & (entryIndex));
5487 resource_name resName;
5488 if (this->getResourceName(resID, &resName)) {
5489 printf(" spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
5490 resID,
5491 CHAR16_TO_CSTR(resName.package, resName.packageLen),
5492 CHAR16_TO_CSTR(resName.type, resName.typeLen),
5493 CHAR16_TO_CSTR(resName.name, resName.nameLen),
5494 dtohl(typeConfigs->typeSpecFlags[entryIndex]));
5495 } else {
5496 printf(" INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
5497 }
5498 }
5499 }
5500 for (size_t configIndex=0; configIndex<NTC; configIndex++) {
5501 const ResTable_type* type = typeConfigs->configs[configIndex];
5502 if ((((uint64_t)type)&0x3) != 0) {
5503 printf(" NON-INTEGER ResTable_type ADDRESS: %p\n", type);
5504 continue;
5505 }
5506 String8 configStr = type->config.toString();
5507 printf(" config %s:\n", configStr.size() > 0
5508 ? configStr.string() : "(default)");
5509 size_t entryCount = dtohl(type->entryCount);
5510 uint32_t entriesStart = dtohl(type->entriesStart);
5511 if ((entriesStart&0x3) != 0) {
5512 printf(" NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart);
5513 continue;
5514 }
5515 uint32_t typeSize = dtohl(type->header.size);
5516 if ((typeSize&0x3) != 0) {
5517 printf(" NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize);
5518 continue;
5519 }
5520 for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
5521
5522 const uint8_t* const end = ((const uint8_t*)type)
5523 + dtohl(type->header.size);
5524 const uint32_t* const eindex = (const uint32_t*)
5525 (((const uint8_t*)type) + dtohs(type->header.headerSize));
5526
5527 uint32_t thisOffset = dtohl(eindex[entryIndex]);
5528 if (thisOffset == ResTable_type::NO_ENTRY) {
5529 continue;
5530 }
5531
5532 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5533 | (0x00ff0000 & ((typeIndex+1)<<16))
5534 | (0x0000ffff & (entryIndex));
5535 resource_name resName;
5536 if (this->getResourceName(resID, &resName)) {
5537 printf(" resource 0x%08x %s:%s/%s: ", resID,
5538 CHAR16_TO_CSTR(resName.package, resName.packageLen),
5539 CHAR16_TO_CSTR(resName.type, resName.typeLen),
5540 CHAR16_TO_CSTR(resName.name, resName.nameLen));
5541 } else {
5542 printf(" INVALID RESOURCE 0x%08x: ", resID);
5543 }
5544 if ((thisOffset&0x3) != 0) {
5545 printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset);
5546 continue;
5547 }
5548 if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
5549 printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n",
5550 (void*)entriesStart, (void*)thisOffset,
5551 (void*)typeSize);
5552 continue;
5553 }
5554
5555 const ResTable_entry* ent = (const ResTable_entry*)
5556 (((const uint8_t*)type) + entriesStart + thisOffset);
5557 if (((entriesStart + thisOffset)&0x3) != 0) {
5558 printf("NON-INTEGER ResTable_entry OFFSET: %p\n",
5559 (void*)(entriesStart + thisOffset));
5560 continue;
5561 }
5562
5563 uint16_t esize = dtohs(ent->size);
5564 if ((esize&0x3) != 0) {
5565 printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize);
5566 continue;
5567 }
5568 if ((thisOffset+esize) > typeSize) {
5569 printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n",
5570 (void*)entriesStart, (void*)thisOffset,
5571 (void*)esize, (void*)typeSize);
5572 continue;
5573 }
5574
5575 const Res_value* valuePtr = NULL;
5576 const ResTable_map_entry* bagPtr = NULL;
5577 Res_value value;
5578 if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
5579 printf("<bag>");
5580 bagPtr = (const ResTable_map_entry*)ent;
5581 } else {
5582 valuePtr = (const Res_value*)
5583 (((const uint8_t*)ent) + esize);
5584 value.copyFrom_dtoh(*valuePtr);
5585 printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
5586 (int)value.dataType, (int)value.data,
5587 (int)value.size, (int)value.res0);
5588 }
5589
5590 if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
5591 printf(" (PUBLIC)");
5592 }
5593 printf("\n");
5594
5595 if (inclValues) {
5596 if (valuePtr != NULL) {
5597 printf(" ");
5598 print_value(pkg, value);
5599 } else if (bagPtr != NULL) {
5600 const int N = dtohl(bagPtr->count);
5601 const uint8_t* baseMapPtr = (const uint8_t*)ent;
5602 size_t mapOffset = esize;
5603 const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5604 printf(" Parent=0x%08x, Count=%d\n",
5605 dtohl(bagPtr->parent.ident), N);
5606 for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
5607 printf(" #%i (Key=0x%08x): ",
5608 i, dtohl(mapPtr->name.ident));
5609 value.copyFrom_dtoh(mapPtr->value);
5610 print_value(pkg, value);
5611 const size_t size = dtohs(mapPtr->value.size);
5612 mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
5613 mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5614 }
5615 }
5616 }
5617 }
5618 }
5619 }
5620 }
5621 }
5622 }
5623
5624 #endif // HAVE_ANDROID_OS
5625
5626 } // namespace android
5627