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 (mOwnedData) {
510 free(mOwnedData);
511 mOwnedData = NULL;
512 }
513 if (mHeader != NULL && mCache != NULL) {
514 for (size_t x = 0; x < mHeader->stringCount; x++) {
515 if (mCache[x] != NULL) {
516 free(mCache[x]);
517 mCache[x] = NULL;
518 }
519 }
520 free(mCache);
521 mCache = NULL;
522 }
523 }
524
525 /**
526 * Strings in UTF-16 format have length indicated by a length encoded in the
527 * stored data. It is either 1 or 2 characters of length data. This allows a
528 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
529 * much data in a string, you're abusing them.
530 *
531 * If the high bit is set, then there are two characters or 4 bytes of length
532 * data encoded. In that case, drop the high bit of the first character and
533 * add it together with the next character.
534 */
535 static inline size_t
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 (copyData) {
1213 mOwnedData = malloc(size);
1214 if (mOwnedData == NULL) {
1215 return (mError=NO_MEMORY);
1216 }
1217 memcpy(mOwnedData, data, size);
1218 data = mOwnedData;
1219 }
1220
1221 mHeader = (const ResXMLTree_header*)data;
1222 mSize = dtohl(mHeader->header.size);
1223 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1224 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1225 (int)dtohs(mHeader->header.headerSize),
1226 (int)dtohl(mHeader->header.size), (int)size);
1227 mError = BAD_TYPE;
1228 restart();
1229 return mError;
1230 }
1231 mDataEnd = ((const uint8_t*)mHeader) + mSize;
1232
1233 mStrings.uninit();
1234 mRootNode = NULL;
1235 mResIds = NULL;
1236 mNumResIds = 0;
1237
1238 // First look for a couple interesting chunks: the string block
1239 // and first XML node.
1240 const ResChunk_header* chunk =
1241 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1242 const ResChunk_header* lastChunk = chunk;
1243 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1244 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1245 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1246 if (err != NO_ERROR) {
1247 mError = err;
1248 goto done;
1249 }
1250 const uint16_t type = dtohs(chunk->type);
1251 const size_t size = dtohl(chunk->size);
1252 XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1253 (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1254 if (type == RES_STRING_POOL_TYPE) {
1255 mStrings.setTo(chunk, size);
1256 } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1257 mResIds = (const uint32_t*)
1258 (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1259 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1260 } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1261 && type <= RES_XML_LAST_CHUNK_TYPE) {
1262 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1263 mError = BAD_TYPE;
1264 goto done;
1265 }
1266 mCurNode = (const ResXMLTree_node*)lastChunk;
1267 if (nextNode() == BAD_DOCUMENT) {
1268 mError = BAD_TYPE;
1269 goto done;
1270 }
1271 mRootNode = mCurNode;
1272 mRootExt = mCurExt;
1273 mRootCode = mEventCode;
1274 break;
1275 } else {
1276 XML_NOISY(printf("Skipping unknown chunk!\n"));
1277 }
1278 lastChunk = chunk;
1279 chunk = (const ResChunk_header*)
1280 (((const uint8_t*)chunk) + size);
1281 }
1282
1283 if (mRootNode == NULL) {
1284 ALOGW("Bad XML block: no root element node found\n");
1285 mError = BAD_TYPE;
1286 goto done;
1287 }
1288
1289 mError = mStrings.getError();
1290
1291 done:
1292 restart();
1293 return mError;
1294 }
1295
getError() const1296 status_t ResXMLTree::getError() const
1297 {
1298 return mError;
1299 }
1300
uninit()1301 void ResXMLTree::uninit()
1302 {
1303 mError = NO_INIT;
1304 mStrings.uninit();
1305 if (mOwnedData) {
1306 free(mOwnedData);
1307 mOwnedData = NULL;
1308 }
1309 restart();
1310 }
1311
validateNode(const ResXMLTree_node * node) const1312 status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1313 {
1314 const uint16_t eventCode = dtohs(node->header.type);
1315
1316 status_t err = validate_chunk(
1317 &node->header, sizeof(ResXMLTree_node),
1318 mDataEnd, "ResXMLTree_node");
1319
1320 if (err >= NO_ERROR) {
1321 // Only perform additional validation on START nodes
1322 if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1323 return NO_ERROR;
1324 }
1325
1326 const uint16_t headerSize = dtohs(node->header.headerSize);
1327 const uint32_t size = dtohl(node->header.size);
1328 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1329 (((const uint8_t*)node) + headerSize);
1330 // check for sensical values pulled out of the stream so far...
1331 if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1332 && ((void*)attrExt > (void*)node)) {
1333 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1334 * dtohs(attrExt->attributeCount);
1335 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1336 return NO_ERROR;
1337 }
1338 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1339 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1340 (unsigned int)(size-headerSize));
1341 }
1342 else {
1343 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1344 (unsigned int)headerSize, (unsigned int)size);
1345 }
1346 return BAD_TYPE;
1347 }
1348
1349 return err;
1350
1351 #if 0
1352 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1353
1354 const uint16_t headerSize = dtohs(node->header.headerSize);
1355 const uint32_t size = dtohl(node->header.size);
1356
1357 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1358 if (size >= headerSize) {
1359 if (((const uint8_t*)node) <= (mDataEnd-size)) {
1360 if (!isStart) {
1361 return NO_ERROR;
1362 }
1363 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1364 <= (size-headerSize)) {
1365 return NO_ERROR;
1366 }
1367 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1368 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1369 (int)(size-headerSize));
1370 return BAD_TYPE;
1371 }
1372 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1373 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1374 return BAD_TYPE;
1375 }
1376 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1377 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1378 (int)headerSize, (int)size);
1379 return BAD_TYPE;
1380 }
1381 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1382 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1383 (int)headerSize);
1384 return BAD_TYPE;
1385 #endif
1386 }
1387
1388 // --------------------------------------------------------------------
1389 // --------------------------------------------------------------------
1390 // --------------------------------------------------------------------
1391
copyFromDeviceNoSwap(const ResTable_config & o)1392 void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1393 const size_t size = dtohl(o.size);
1394 if (size >= sizeof(ResTable_config)) {
1395 *this = o;
1396 } else {
1397 memcpy(this, &o, size);
1398 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1399 }
1400 }
1401
copyFromDtoH(const ResTable_config & o)1402 void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1403 copyFromDeviceNoSwap(o);
1404 size = sizeof(ResTable_config);
1405 mcc = dtohs(mcc);
1406 mnc = dtohs(mnc);
1407 density = dtohs(density);
1408 screenWidth = dtohs(screenWidth);
1409 screenHeight = dtohs(screenHeight);
1410 sdkVersion = dtohs(sdkVersion);
1411 minorVersion = dtohs(minorVersion);
1412 smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1413 screenWidthDp = dtohs(screenWidthDp);
1414 screenHeightDp = dtohs(screenHeightDp);
1415 }
1416
swapHtoD()1417 void ResTable_config::swapHtoD() {
1418 size = htodl(size);
1419 mcc = htods(mcc);
1420 mnc = htods(mnc);
1421 density = htods(density);
1422 screenWidth = htods(screenWidth);
1423 screenHeight = htods(screenHeight);
1424 sdkVersion = htods(sdkVersion);
1425 minorVersion = htods(minorVersion);
1426 smallestScreenWidthDp = htods(smallestScreenWidthDp);
1427 screenWidthDp = htods(screenWidthDp);
1428 screenHeightDp = htods(screenHeightDp);
1429 }
1430
compare(const ResTable_config & o) const1431 int ResTable_config::compare(const ResTable_config& o) const {
1432 int32_t diff = (int32_t)(imsi - o.imsi);
1433 if (diff != 0) return diff;
1434 diff = (int32_t)(locale - o.locale);
1435 if (diff != 0) return diff;
1436 diff = (int32_t)(screenType - o.screenType);
1437 if (diff != 0) return diff;
1438 diff = (int32_t)(input - o.input);
1439 if (diff != 0) return diff;
1440 diff = (int32_t)(screenSize - o.screenSize);
1441 if (diff != 0) return diff;
1442 diff = (int32_t)(version - o.version);
1443 if (diff != 0) return diff;
1444 diff = (int32_t)(screenLayout - o.screenLayout);
1445 if (diff != 0) return diff;
1446 diff = (int32_t)(uiMode - o.uiMode);
1447 if (diff != 0) return diff;
1448 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1449 if (diff != 0) return diff;
1450 diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1451 return (int)diff;
1452 }
1453
compareLogical(const ResTable_config & o) const1454 int ResTable_config::compareLogical(const ResTable_config& o) const {
1455 if (mcc != o.mcc) {
1456 return mcc < o.mcc ? -1 : 1;
1457 }
1458 if (mnc != o.mnc) {
1459 return mnc < o.mnc ? -1 : 1;
1460 }
1461 if (language[0] != o.language[0]) {
1462 return language[0] < o.language[0] ? -1 : 1;
1463 }
1464 if (language[1] != o.language[1]) {
1465 return language[1] < o.language[1] ? -1 : 1;
1466 }
1467 if (country[0] != o.country[0]) {
1468 return country[0] < o.country[0] ? -1 : 1;
1469 }
1470 if (country[1] != o.country[1]) {
1471 return country[1] < o.country[1] ? -1 : 1;
1472 }
1473 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1474 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1475 }
1476 if (screenWidthDp != o.screenWidthDp) {
1477 return screenWidthDp < o.screenWidthDp ? -1 : 1;
1478 }
1479 if (screenHeightDp != o.screenHeightDp) {
1480 return screenHeightDp < o.screenHeightDp ? -1 : 1;
1481 }
1482 if (screenWidth != o.screenWidth) {
1483 return screenWidth < o.screenWidth ? -1 : 1;
1484 }
1485 if (screenHeight != o.screenHeight) {
1486 return screenHeight < o.screenHeight ? -1 : 1;
1487 }
1488 if (density != o.density) {
1489 return density < o.density ? -1 : 1;
1490 }
1491 if (orientation != o.orientation) {
1492 return orientation < o.orientation ? -1 : 1;
1493 }
1494 if (touchscreen != o.touchscreen) {
1495 return touchscreen < o.touchscreen ? -1 : 1;
1496 }
1497 if (input != o.input) {
1498 return input < o.input ? -1 : 1;
1499 }
1500 if (screenLayout != o.screenLayout) {
1501 return screenLayout < o.screenLayout ? -1 : 1;
1502 }
1503 if (uiMode != o.uiMode) {
1504 return uiMode < o.uiMode ? -1 : 1;
1505 }
1506 if (version != o.version) {
1507 return version < o.version ? -1 : 1;
1508 }
1509 return 0;
1510 }
1511
diff(const ResTable_config & o) const1512 int ResTable_config::diff(const ResTable_config& o) const {
1513 int diffs = 0;
1514 if (mcc != o.mcc) diffs |= CONFIG_MCC;
1515 if (mnc != o.mnc) diffs |= CONFIG_MNC;
1516 if (locale != o.locale) diffs |= CONFIG_LOCALE;
1517 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1518 if (density != o.density) diffs |= CONFIG_DENSITY;
1519 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1520 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1521 diffs |= CONFIG_KEYBOARD_HIDDEN;
1522 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1523 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1524 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1525 if (version != o.version) diffs |= CONFIG_VERSION;
1526 if (screenLayout != o.screenLayout) diffs |= CONFIG_SCREEN_LAYOUT;
1527 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1528 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1529 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1530 return diffs;
1531 }
1532
isMoreSpecificThan(const ResTable_config & o) const1533 bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1534 // The order of the following tests defines the importance of one
1535 // configuration parameter over another. Those tests first are more
1536 // important, trumping any values in those following them.
1537 if (imsi || o.imsi) {
1538 if (mcc != o.mcc) {
1539 if (!mcc) return false;
1540 if (!o.mcc) return true;
1541 }
1542
1543 if (mnc != o.mnc) {
1544 if (!mnc) return false;
1545 if (!o.mnc) return true;
1546 }
1547 }
1548
1549 if (locale || o.locale) {
1550 if (language[0] != o.language[0]) {
1551 if (!language[0]) return false;
1552 if (!o.language[0]) return true;
1553 }
1554
1555 if (country[0] != o.country[0]) {
1556 if (!country[0]) return false;
1557 if (!o.country[0]) return true;
1558 }
1559 }
1560
1561 if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1562 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1563 if (!smallestScreenWidthDp) return false;
1564 if (!o.smallestScreenWidthDp) return true;
1565 }
1566 }
1567
1568 if (screenSizeDp || o.screenSizeDp) {
1569 if (screenWidthDp != o.screenWidthDp) {
1570 if (!screenWidthDp) return false;
1571 if (!o.screenWidthDp) return true;
1572 }
1573
1574 if (screenHeightDp != o.screenHeightDp) {
1575 if (!screenHeightDp) return false;
1576 if (!o.screenHeightDp) return true;
1577 }
1578 }
1579
1580 if (screenLayout || o.screenLayout) {
1581 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1582 if (!(screenLayout & MASK_SCREENSIZE)) return false;
1583 if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1584 }
1585 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1586 if (!(screenLayout & MASK_SCREENLONG)) return false;
1587 if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1588 }
1589 }
1590
1591 if (orientation != o.orientation) {
1592 if (!orientation) return false;
1593 if (!o.orientation) return true;
1594 }
1595
1596 if (uiMode || o.uiMode) {
1597 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
1598 if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
1599 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
1600 }
1601 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
1602 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
1603 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
1604 }
1605 }
1606
1607 // density is never 'more specific'
1608 // as the default just equals 160
1609
1610 if (touchscreen != o.touchscreen) {
1611 if (!touchscreen) return false;
1612 if (!o.touchscreen) return true;
1613 }
1614
1615 if (input || o.input) {
1616 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
1617 if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
1618 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
1619 }
1620
1621 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
1622 if (!(inputFlags & MASK_NAVHIDDEN)) return false;
1623 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
1624 }
1625
1626 if (keyboard != o.keyboard) {
1627 if (!keyboard) return false;
1628 if (!o.keyboard) return true;
1629 }
1630
1631 if (navigation != o.navigation) {
1632 if (!navigation) return false;
1633 if (!o.navigation) return true;
1634 }
1635 }
1636
1637 if (screenSize || o.screenSize) {
1638 if (screenWidth != o.screenWidth) {
1639 if (!screenWidth) return false;
1640 if (!o.screenWidth) return true;
1641 }
1642
1643 if (screenHeight != o.screenHeight) {
1644 if (!screenHeight) return false;
1645 if (!o.screenHeight) return true;
1646 }
1647 }
1648
1649 if (version || o.version) {
1650 if (sdkVersion != o.sdkVersion) {
1651 if (!sdkVersion) return false;
1652 if (!o.sdkVersion) return true;
1653 }
1654
1655 if (minorVersion != o.minorVersion) {
1656 if (!minorVersion) return false;
1657 if (!o.minorVersion) return true;
1658 }
1659 }
1660 return false;
1661 }
1662
isBetterThan(const ResTable_config & o,const ResTable_config * requested) const1663 bool ResTable_config::isBetterThan(const ResTable_config& o,
1664 const ResTable_config* requested) const {
1665 if (requested) {
1666 if (imsi || o.imsi) {
1667 if ((mcc != o.mcc) && requested->mcc) {
1668 return (mcc);
1669 }
1670
1671 if ((mnc != o.mnc) && requested->mnc) {
1672 return (mnc);
1673 }
1674 }
1675
1676 if (locale || o.locale) {
1677 if ((language[0] != o.language[0]) && requested->language[0]) {
1678 return (language[0]);
1679 }
1680
1681 if ((country[0] != o.country[0]) && requested->country[0]) {
1682 return (country[0]);
1683 }
1684 }
1685
1686 if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1687 // The configuration closest to the actual size is best.
1688 // We assume that larger configs have already been filtered
1689 // out at this point. That means we just want the largest one.
1690 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1691 return smallestScreenWidthDp > o.smallestScreenWidthDp;
1692 }
1693 }
1694
1695 if (screenSizeDp || o.screenSizeDp) {
1696 // "Better" is based on the sum of the difference between both
1697 // width and height from the requested dimensions. We are
1698 // assuming the invalid configs (with smaller dimens) have
1699 // already been filtered. Note that if a particular dimension
1700 // is unspecified, we will end up with a large value (the
1701 // difference between 0 and the requested dimension), which is
1702 // good since we will prefer a config that has specified a
1703 // dimension value.
1704 int myDelta = 0, otherDelta = 0;
1705 if (requested->screenWidthDp) {
1706 myDelta += requested->screenWidthDp - screenWidthDp;
1707 otherDelta += requested->screenWidthDp - o.screenWidthDp;
1708 }
1709 if (requested->screenHeightDp) {
1710 myDelta += requested->screenHeightDp - screenHeightDp;
1711 otherDelta += requested->screenHeightDp - o.screenHeightDp;
1712 }
1713 //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
1714 // screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
1715 // requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
1716 if (myDelta != otherDelta) {
1717 return myDelta < otherDelta;
1718 }
1719 }
1720
1721 if (screenLayout || o.screenLayout) {
1722 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
1723 && (requested->screenLayout & MASK_SCREENSIZE)) {
1724 // A little backwards compatibility here: undefined is
1725 // considered equivalent to normal. But only if the
1726 // requested size is at least normal; otherwise, small
1727 // is better than the default.
1728 int mySL = (screenLayout & MASK_SCREENSIZE);
1729 int oSL = (o.screenLayout & MASK_SCREENSIZE);
1730 int fixedMySL = mySL;
1731 int fixedOSL = oSL;
1732 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
1733 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
1734 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
1735 }
1736 // For screen size, the best match is the one that is
1737 // closest to the requested screen size, but not over
1738 // (the not over part is dealt with in match() below).
1739 if (fixedMySL == fixedOSL) {
1740 // If the two are the same, but 'this' is actually
1741 // undefined, then the other is really a better match.
1742 if (mySL == 0) return false;
1743 return true;
1744 }
1745 if (fixedMySL != fixedOSL) {
1746 return fixedMySL > fixedOSL;
1747 }
1748 }
1749 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
1750 && (requested->screenLayout & MASK_SCREENLONG)) {
1751 return (screenLayout & MASK_SCREENLONG);
1752 }
1753 }
1754
1755 if ((orientation != o.orientation) && requested->orientation) {
1756 return (orientation);
1757 }
1758
1759 if (uiMode || o.uiMode) {
1760 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
1761 && (requested->uiMode & MASK_UI_MODE_TYPE)) {
1762 return (uiMode & MASK_UI_MODE_TYPE);
1763 }
1764 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
1765 && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
1766 return (uiMode & MASK_UI_MODE_NIGHT);
1767 }
1768 }
1769
1770 if (screenType || o.screenType) {
1771 if (density != o.density) {
1772 // density is tough. Any density is potentially useful
1773 // because the system will scale it. Scaling down
1774 // is generally better than scaling up.
1775 // Default density counts as 160dpi (the system default)
1776 // TODO - remove 160 constants
1777 int h = (density?density:160);
1778 int l = (o.density?o.density:160);
1779 bool bImBigger = true;
1780 if (l > h) {
1781 int t = h;
1782 h = l;
1783 l = t;
1784 bImBigger = false;
1785 }
1786
1787 int reqValue = (requested->density?requested->density:160);
1788 if (reqValue >= h) {
1789 // requested value higher than both l and h, give h
1790 return bImBigger;
1791 }
1792 if (l >= reqValue) {
1793 // requested value lower than both l and h, give l
1794 return !bImBigger;
1795 }
1796 // saying that scaling down is 2x better than up
1797 if (((2 * l) - reqValue) * h > reqValue * reqValue) {
1798 return !bImBigger;
1799 } else {
1800 return bImBigger;
1801 }
1802 }
1803
1804 if ((touchscreen != o.touchscreen) && requested->touchscreen) {
1805 return (touchscreen);
1806 }
1807 }
1808
1809 if (input || o.input) {
1810 const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
1811 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
1812 if (keysHidden != oKeysHidden) {
1813 const int reqKeysHidden =
1814 requested->inputFlags & MASK_KEYSHIDDEN;
1815 if (reqKeysHidden) {
1816
1817 if (!keysHidden) return false;
1818 if (!oKeysHidden) return true;
1819 // For compatibility, we count KEYSHIDDEN_NO as being
1820 // the same as KEYSHIDDEN_SOFT. Here we disambiguate
1821 // these by making an exact match more specific.
1822 if (reqKeysHidden == keysHidden) return true;
1823 if (reqKeysHidden == oKeysHidden) return false;
1824 }
1825 }
1826
1827 const int navHidden = inputFlags & MASK_NAVHIDDEN;
1828 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
1829 if (navHidden != oNavHidden) {
1830 const int reqNavHidden =
1831 requested->inputFlags & MASK_NAVHIDDEN;
1832 if (reqNavHidden) {
1833
1834 if (!navHidden) return false;
1835 if (!oNavHidden) return true;
1836 }
1837 }
1838
1839 if ((keyboard != o.keyboard) && requested->keyboard) {
1840 return (keyboard);
1841 }
1842
1843 if ((navigation != o.navigation) && requested->navigation) {
1844 return (navigation);
1845 }
1846 }
1847
1848 if (screenSize || o.screenSize) {
1849 // "Better" is based on the sum of the difference between both
1850 // width and height from the requested dimensions. We are
1851 // assuming the invalid configs (with smaller sizes) have
1852 // already been filtered. Note that if a particular dimension
1853 // is unspecified, we will end up with a large value (the
1854 // difference between 0 and the requested dimension), which is
1855 // good since we will prefer a config that has specified a
1856 // size value.
1857 int myDelta = 0, otherDelta = 0;
1858 if (requested->screenWidth) {
1859 myDelta += requested->screenWidth - screenWidth;
1860 otherDelta += requested->screenWidth - o.screenWidth;
1861 }
1862 if (requested->screenHeight) {
1863 myDelta += requested->screenHeight - screenHeight;
1864 otherDelta += requested->screenHeight - o.screenHeight;
1865 }
1866 if (myDelta != otherDelta) {
1867 return myDelta < otherDelta;
1868 }
1869 }
1870
1871 if (version || o.version) {
1872 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
1873 return (sdkVersion > o.sdkVersion);
1874 }
1875
1876 if ((minorVersion != o.minorVersion) &&
1877 requested->minorVersion) {
1878 return (minorVersion);
1879 }
1880 }
1881
1882 return false;
1883 }
1884 return isMoreSpecificThan(o);
1885 }
1886
match(const ResTable_config & settings) const1887 bool ResTable_config::match(const ResTable_config& settings) const {
1888 if (imsi != 0) {
1889 if (mcc != 0 && mcc != settings.mcc) {
1890 return false;
1891 }
1892 if (mnc != 0 && mnc != settings.mnc) {
1893 return false;
1894 }
1895 }
1896 if (locale != 0) {
1897 if (language[0] != 0
1898 && (language[0] != settings.language[0]
1899 || language[1] != settings.language[1])) {
1900 return false;
1901 }
1902 if (country[0] != 0
1903 && (country[0] != settings.country[0]
1904 || country[1] != settings.country[1])) {
1905 return false;
1906 }
1907 }
1908 if (screenConfig != 0) {
1909 const int screenSize = screenLayout&MASK_SCREENSIZE;
1910 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
1911 // Any screen sizes for larger screens than the setting do not
1912 // match.
1913 if (screenSize != 0 && screenSize > setScreenSize) {
1914 return false;
1915 }
1916
1917 const int screenLong = screenLayout&MASK_SCREENLONG;
1918 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
1919 if (screenLong != 0 && screenLong != setScreenLong) {
1920 return false;
1921 }
1922
1923 const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
1924 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
1925 if (uiModeType != 0 && uiModeType != setUiModeType) {
1926 return false;
1927 }
1928
1929 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
1930 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
1931 if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
1932 return false;
1933 }
1934
1935 if (smallestScreenWidthDp != 0
1936 && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
1937 return false;
1938 }
1939 }
1940 if (screenSizeDp != 0) {
1941 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
1942 //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
1943 return false;
1944 }
1945 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
1946 //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
1947 return false;
1948 }
1949 }
1950 if (screenType != 0) {
1951 if (orientation != 0 && orientation != settings.orientation) {
1952 return false;
1953 }
1954 // density always matches - we can scale it. See isBetterThan
1955 if (touchscreen != 0 && touchscreen != settings.touchscreen) {
1956 return false;
1957 }
1958 }
1959 if (input != 0) {
1960 const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
1961 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
1962 if (keysHidden != 0 && keysHidden != setKeysHidden) {
1963 // For compatibility, we count a request for KEYSHIDDEN_NO as also
1964 // matching the more recent KEYSHIDDEN_SOFT. Basically
1965 // KEYSHIDDEN_NO means there is some kind of keyboard available.
1966 //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
1967 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
1968 //ALOGI("No match!");
1969 return false;
1970 }
1971 }
1972 const int navHidden = inputFlags&MASK_NAVHIDDEN;
1973 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
1974 if (navHidden != 0 && navHidden != setNavHidden) {
1975 return false;
1976 }
1977 if (keyboard != 0 && keyboard != settings.keyboard) {
1978 return false;
1979 }
1980 if (navigation != 0 && navigation != settings.navigation) {
1981 return false;
1982 }
1983 }
1984 if (screenSize != 0) {
1985 if (screenWidth != 0 && screenWidth > settings.screenWidth) {
1986 return false;
1987 }
1988 if (screenHeight != 0 && screenHeight > settings.screenHeight) {
1989 return false;
1990 }
1991 }
1992 if (version != 0) {
1993 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
1994 return false;
1995 }
1996 if (minorVersion != 0 && minorVersion != settings.minorVersion) {
1997 return false;
1998 }
1999 }
2000 return true;
2001 }
2002
getLocale(char str[6]) const2003 void ResTable_config::getLocale(char str[6]) const {
2004 memset(str, 0, 6);
2005 if (language[0]) {
2006 str[0] = language[0];
2007 str[1] = language[1];
2008 if (country[0]) {
2009 str[2] = '_';
2010 str[3] = country[0];
2011 str[4] = country[1];
2012 }
2013 }
2014 }
2015
toString() const2016 String8 ResTable_config::toString() const {
2017 String8 res;
2018
2019 if (mcc != 0) {
2020 if (res.size() > 0) res.append("-");
2021 res.appendFormat("%dmcc", dtohs(mcc));
2022 }
2023 if (mnc != 0) {
2024 if (res.size() > 0) res.append("-");
2025 res.appendFormat("%dmnc", dtohs(mnc));
2026 }
2027 if (language[0] != 0) {
2028 if (res.size() > 0) res.append("-");
2029 res.append(language, 2);
2030 }
2031 if (country[0] != 0) {
2032 if (res.size() > 0) res.append("-");
2033 res.append(country, 2);
2034 }
2035 if (smallestScreenWidthDp != 0) {
2036 if (res.size() > 0) res.append("-");
2037 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2038 }
2039 if (screenWidthDp != 0) {
2040 if (res.size() > 0) res.append("-");
2041 res.appendFormat("w%ddp", dtohs(screenWidthDp));
2042 }
2043 if (screenHeightDp != 0) {
2044 if (res.size() > 0) res.append("-");
2045 res.appendFormat("h%ddp", dtohs(screenHeightDp));
2046 }
2047 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2048 if (res.size() > 0) res.append("-");
2049 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2050 case ResTable_config::SCREENSIZE_SMALL:
2051 res.append("small");
2052 break;
2053 case ResTable_config::SCREENSIZE_NORMAL:
2054 res.append("normal");
2055 break;
2056 case ResTable_config::SCREENSIZE_LARGE:
2057 res.append("large");
2058 break;
2059 case ResTable_config::SCREENSIZE_XLARGE:
2060 res.append("xlarge");
2061 break;
2062 default:
2063 res.appendFormat("screenLayoutSize=%d",
2064 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2065 break;
2066 }
2067 }
2068 if ((screenLayout&MASK_SCREENLONG) != 0) {
2069 if (res.size() > 0) res.append("-");
2070 switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2071 case ResTable_config::SCREENLONG_NO:
2072 res.append("notlong");
2073 break;
2074 case ResTable_config::SCREENLONG_YES:
2075 res.append("long");
2076 break;
2077 default:
2078 res.appendFormat("screenLayoutLong=%d",
2079 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2080 break;
2081 }
2082 }
2083 if (orientation != ORIENTATION_ANY) {
2084 if (res.size() > 0) res.append("-");
2085 switch (orientation) {
2086 case ResTable_config::ORIENTATION_PORT:
2087 res.append("port");
2088 break;
2089 case ResTable_config::ORIENTATION_LAND:
2090 res.append("land");
2091 break;
2092 case ResTable_config::ORIENTATION_SQUARE:
2093 res.append("square");
2094 break;
2095 default:
2096 res.appendFormat("orientation=%d", dtohs(orientation));
2097 break;
2098 }
2099 }
2100 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2101 if (res.size() > 0) res.append("-");
2102 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2103 case ResTable_config::UI_MODE_TYPE_DESK:
2104 res.append("desk");
2105 break;
2106 case ResTable_config::UI_MODE_TYPE_CAR:
2107 res.append("car");
2108 break;
2109 case ResTable_config::UI_MODE_TYPE_TELEVISION:
2110 res.append("television");
2111 break;
2112 case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2113 res.append("appliance");
2114 break;
2115 default:
2116 res.appendFormat("uiModeType=%d",
2117 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2118 break;
2119 }
2120 }
2121 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2122 if (res.size() > 0) res.append("-");
2123 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2124 case ResTable_config::UI_MODE_NIGHT_NO:
2125 res.append("notnight");
2126 break;
2127 case ResTable_config::UI_MODE_NIGHT_YES:
2128 res.append("night");
2129 break;
2130 default:
2131 res.appendFormat("uiModeNight=%d",
2132 dtohs(uiMode&MASK_UI_MODE_NIGHT));
2133 break;
2134 }
2135 }
2136 if (density != DENSITY_DEFAULT) {
2137 if (res.size() > 0) res.append("-");
2138 switch (density) {
2139 case ResTable_config::DENSITY_LOW:
2140 res.append("ldpi");
2141 break;
2142 case ResTable_config::DENSITY_MEDIUM:
2143 res.append("mdpi");
2144 break;
2145 case ResTable_config::DENSITY_TV:
2146 res.append("tvdpi");
2147 break;
2148 case ResTable_config::DENSITY_HIGH:
2149 res.append("hdpi");
2150 break;
2151 case ResTable_config::DENSITY_XHIGH:
2152 res.append("xhdpi");
2153 break;
2154 case ResTable_config::DENSITY_XXHIGH:
2155 res.append("xxhdpi");
2156 break;
2157 case ResTable_config::DENSITY_NONE:
2158 res.append("nodpi");
2159 break;
2160 default:
2161 res.appendFormat("%ddpi", dtohs(density));
2162 break;
2163 }
2164 }
2165 if (touchscreen != TOUCHSCREEN_ANY) {
2166 if (res.size() > 0) res.append("-");
2167 switch (touchscreen) {
2168 case ResTable_config::TOUCHSCREEN_NOTOUCH:
2169 res.append("notouch");
2170 break;
2171 case ResTable_config::TOUCHSCREEN_FINGER:
2172 res.append("finger");
2173 break;
2174 case ResTable_config::TOUCHSCREEN_STYLUS:
2175 res.append("stylus");
2176 break;
2177 default:
2178 res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2179 break;
2180 }
2181 }
2182 if (keyboard != KEYBOARD_ANY) {
2183 if (res.size() > 0) res.append("-");
2184 switch (keyboard) {
2185 case ResTable_config::KEYBOARD_NOKEYS:
2186 res.append("nokeys");
2187 break;
2188 case ResTable_config::KEYBOARD_QWERTY:
2189 res.append("qwerty");
2190 break;
2191 case ResTable_config::KEYBOARD_12KEY:
2192 res.append("12key");
2193 break;
2194 default:
2195 res.appendFormat("keyboard=%d", dtohs(keyboard));
2196 break;
2197 }
2198 }
2199 if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2200 if (res.size() > 0) res.append("-");
2201 switch (inputFlags&MASK_KEYSHIDDEN) {
2202 case ResTable_config::KEYSHIDDEN_NO:
2203 res.append("keysexposed");
2204 break;
2205 case ResTable_config::KEYSHIDDEN_YES:
2206 res.append("keyshidden");
2207 break;
2208 case ResTable_config::KEYSHIDDEN_SOFT:
2209 res.append("keyssoft");
2210 break;
2211 }
2212 }
2213 if (navigation != NAVIGATION_ANY) {
2214 if (res.size() > 0) res.append("-");
2215 switch (navigation) {
2216 case ResTable_config::NAVIGATION_NONAV:
2217 res.append("nonav");
2218 break;
2219 case ResTable_config::NAVIGATION_DPAD:
2220 res.append("dpad");
2221 break;
2222 case ResTable_config::NAVIGATION_TRACKBALL:
2223 res.append("trackball");
2224 break;
2225 case ResTable_config::NAVIGATION_WHEEL:
2226 res.append("wheel");
2227 break;
2228 default:
2229 res.appendFormat("navigation=%d", dtohs(navigation));
2230 break;
2231 }
2232 }
2233 if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2234 if (res.size() > 0) res.append("-");
2235 switch (inputFlags&MASK_NAVHIDDEN) {
2236 case ResTable_config::NAVHIDDEN_NO:
2237 res.append("navsexposed");
2238 break;
2239 case ResTable_config::NAVHIDDEN_YES:
2240 res.append("navhidden");
2241 break;
2242 default:
2243 res.appendFormat("inputFlagsNavHidden=%d",
2244 dtohs(inputFlags&MASK_NAVHIDDEN));
2245 break;
2246 }
2247 }
2248 if (screenSize != 0) {
2249 if (res.size() > 0) res.append("-");
2250 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2251 }
2252 if (version != 0) {
2253 if (res.size() > 0) res.append("-");
2254 res.appendFormat("v%d", dtohs(sdkVersion));
2255 if (minorVersion != 0) {
2256 res.appendFormat(".%d", dtohs(minorVersion));
2257 }
2258 }
2259
2260 return res;
2261 }
2262
2263 // --------------------------------------------------------------------
2264 // --------------------------------------------------------------------
2265 // --------------------------------------------------------------------
2266
2267 struct ResTable::Header
2268 {
Headerandroid::ResTable::Header2269 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2270 resourceIDMap(NULL), resourceIDMapSize(0) { }
2271
~Headerandroid::ResTable::Header2272 ~Header()
2273 {
2274 free(resourceIDMap);
2275 }
2276
2277 ResTable* const owner;
2278 void* ownedData;
2279 const ResTable_header* header;
2280 size_t size;
2281 const uint8_t* dataEnd;
2282 size_t index;
2283 void* cookie;
2284
2285 ResStringPool values;
2286 uint32_t* resourceIDMap;
2287 size_t resourceIDMapSize;
2288 };
2289
2290 struct ResTable::Type
2291 {
Typeandroid::ResTable::Type2292 Type(const Header* _header, const Package* _package, size_t count)
2293 : header(_header), package(_package), entryCount(count),
2294 typeSpec(NULL), typeSpecFlags(NULL) { }
2295 const Header* const header;
2296 const Package* const package;
2297 const size_t entryCount;
2298 const ResTable_typeSpec* typeSpec;
2299 const uint32_t* typeSpecFlags;
2300 Vector<const ResTable_type*> configs;
2301 };
2302
2303 struct ResTable::Package
2304 {
Packageandroid::ResTable::Package2305 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2306 : owner(_owner), header(_header), package(_package) { }
~Packageandroid::ResTable::Package2307 ~Package()
2308 {
2309 size_t i = types.size();
2310 while (i > 0) {
2311 i--;
2312 delete types[i];
2313 }
2314 }
2315
2316 ResTable* const owner;
2317 const Header* const header;
2318 const ResTable_package* const package;
2319 Vector<Type*> types;
2320
2321 ResStringPool typeStrings;
2322 ResStringPool keyStrings;
2323
getTypeandroid::ResTable::Package2324 const Type* getType(size_t idx) const {
2325 return idx < types.size() ? types[idx] : NULL;
2326 }
2327 };
2328
2329 // A group of objects describing a particular resource package.
2330 // The first in 'package' is always the root object (from the resource
2331 // table that defined the package); the ones after are skins on top of it.
2332 struct ResTable::PackageGroup
2333 {
PackageGroupandroid::ResTable::PackageGroup2334 PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2335 : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { }
~PackageGroupandroid::ResTable::PackageGroup2336 ~PackageGroup() {
2337 clearBagCache();
2338 const size_t N = packages.size();
2339 for (size_t i=0; i<N; i++) {
2340 Package* pkg = packages[i];
2341 if (pkg->owner == owner) {
2342 delete pkg;
2343 }
2344 }
2345 }
2346
clearBagCacheandroid::ResTable::PackageGroup2347 void clearBagCache() {
2348 if (bags) {
2349 TABLE_NOISY(printf("bags=%p\n", bags));
2350 Package* pkg = packages[0];
2351 TABLE_NOISY(printf("typeCount=%x\n", typeCount));
2352 for (size_t i=0; i<typeCount; i++) {
2353 TABLE_NOISY(printf("type=%d\n", i));
2354 const Type* type = pkg->getType(i);
2355 if (type != NULL) {
2356 bag_set** typeBags = bags[i];
2357 TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2358 if (typeBags) {
2359 TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
2360 const size_t N = type->entryCount;
2361 for (size_t j=0; j<N; j++) {
2362 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2363 free(typeBags[j]);
2364 }
2365 free(typeBags);
2366 }
2367 }
2368 }
2369 free(bags);
2370 bags = NULL;
2371 }
2372 }
2373
2374 ResTable* const owner;
2375 String16 const name;
2376 uint32_t const id;
2377 Vector<Package*> packages;
2378
2379 // This is for finding typeStrings and other common package stuff.
2380 Package* basePackage;
2381
2382 // For quick access.
2383 size_t typeCount;
2384
2385 // Computed attribute bags, first indexed by the type and second
2386 // by the entry in that type.
2387 bag_set*** bags;
2388 };
2389
2390 struct ResTable::bag_set
2391 {
2392 size_t numAttrs; // number in array
2393 size_t availAttrs; // total space in array
2394 uint32_t typeSpecFlags;
2395 // Followed by 'numAttr' bag_entry structures.
2396 };
2397
Theme(const ResTable & table)2398 ResTable::Theme::Theme(const ResTable& table)
2399 : mTable(table)
2400 {
2401 memset(mPackages, 0, sizeof(mPackages));
2402 }
2403
~Theme()2404 ResTable::Theme::~Theme()
2405 {
2406 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2407 package_info* pi = mPackages[i];
2408 if (pi != NULL) {
2409 free_package(pi);
2410 }
2411 }
2412 }
2413
free_package(package_info * pi)2414 void ResTable::Theme::free_package(package_info* pi)
2415 {
2416 for (size_t j=0; j<pi->numTypes; j++) {
2417 theme_entry* te = pi->types[j].entries;
2418 if (te != NULL) {
2419 free(te);
2420 }
2421 }
2422 free(pi);
2423 }
2424
copy_package(package_info * pi)2425 ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
2426 {
2427 package_info* newpi = (package_info*)malloc(
2428 sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
2429 newpi->numTypes = pi->numTypes;
2430 for (size_t j=0; j<newpi->numTypes; j++) {
2431 size_t cnt = pi->types[j].numEntries;
2432 newpi->types[j].numEntries = cnt;
2433 theme_entry* te = pi->types[j].entries;
2434 if (te != NULL) {
2435 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2436 newpi->types[j].entries = newte;
2437 memcpy(newte, te, cnt*sizeof(theme_entry));
2438 } else {
2439 newpi->types[j].entries = NULL;
2440 }
2441 }
2442 return newpi;
2443 }
2444
applyStyle(uint32_t resID,bool force)2445 status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
2446 {
2447 const bag_entry* bag;
2448 uint32_t bagTypeSpecFlags = 0;
2449 mTable.lock();
2450 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
2451 TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
2452 if (N < 0) {
2453 mTable.unlock();
2454 return N;
2455 }
2456
2457 uint32_t curPackage = 0xffffffff;
2458 ssize_t curPackageIndex = 0;
2459 package_info* curPI = NULL;
2460 uint32_t curType = 0xffffffff;
2461 size_t numEntries = 0;
2462 theme_entry* curEntries = NULL;
2463
2464 const bag_entry* end = bag + N;
2465 while (bag < end) {
2466 const uint32_t attrRes = bag->map.name.ident;
2467 const uint32_t p = Res_GETPACKAGE(attrRes);
2468 const uint32_t t = Res_GETTYPE(attrRes);
2469 const uint32_t e = Res_GETENTRY(attrRes);
2470
2471 if (curPackage != p) {
2472 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
2473 if (pidx < 0) {
2474 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
2475 bag++;
2476 continue;
2477 }
2478 curPackage = p;
2479 curPackageIndex = pidx;
2480 curPI = mPackages[pidx];
2481 if (curPI == NULL) {
2482 PackageGroup* const grp = mTable.mPackageGroups[pidx];
2483 int cnt = grp->typeCount;
2484 curPI = (package_info*)malloc(
2485 sizeof(package_info) + (cnt*sizeof(type_info)));
2486 curPI->numTypes = cnt;
2487 memset(curPI->types, 0, cnt*sizeof(type_info));
2488 mPackages[pidx] = curPI;
2489 }
2490 curType = 0xffffffff;
2491 }
2492 if (curType != t) {
2493 if (t >= curPI->numTypes) {
2494 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
2495 bag++;
2496 continue;
2497 }
2498 curType = t;
2499 curEntries = curPI->types[t].entries;
2500 if (curEntries == NULL) {
2501 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
2502 const Type* type = grp->packages[0]->getType(t);
2503 int cnt = type != NULL ? type->entryCount : 0;
2504 curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2505 memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
2506 curPI->types[t].numEntries = cnt;
2507 curPI->types[t].entries = curEntries;
2508 }
2509 numEntries = curPI->types[t].numEntries;
2510 }
2511 if (e >= numEntries) {
2512 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
2513 bag++;
2514 continue;
2515 }
2516 theme_entry* curEntry = curEntries + e;
2517 TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
2518 attrRes, bag->map.value.dataType, bag->map.value.data,
2519 curEntry->value.dataType));
2520 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
2521 curEntry->stringBlock = bag->stringBlock;
2522 curEntry->typeSpecFlags |= bagTypeSpecFlags;
2523 curEntry->value = bag->map.value;
2524 }
2525
2526 bag++;
2527 }
2528
2529 mTable.unlock();
2530
2531 //ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this);
2532 //dumpToLog();
2533
2534 return NO_ERROR;
2535 }
2536
setTo(const Theme & other)2537 status_t ResTable::Theme::setTo(const Theme& other)
2538 {
2539 //ALOGI("Setting theme %p from theme %p...\n", this, &other);
2540 //dumpToLog();
2541 //other.dumpToLog();
2542
2543 if (&mTable == &other.mTable) {
2544 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2545 if (mPackages[i] != NULL) {
2546 free_package(mPackages[i]);
2547 }
2548 if (other.mPackages[i] != NULL) {
2549 mPackages[i] = copy_package(other.mPackages[i]);
2550 } else {
2551 mPackages[i] = NULL;
2552 }
2553 }
2554 } else {
2555 // @todo: need to really implement this, not just copy
2556 // the system package (which is still wrong because it isn't
2557 // fixing up resource references).
2558 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2559 if (mPackages[i] != NULL) {
2560 free_package(mPackages[i]);
2561 }
2562 if (i == 0 && other.mPackages[i] != NULL) {
2563 mPackages[i] = copy_package(other.mPackages[i]);
2564 } else {
2565 mPackages[i] = NULL;
2566 }
2567 }
2568 }
2569
2570 //ALOGI("Final theme:");
2571 //dumpToLog();
2572
2573 return NO_ERROR;
2574 }
2575
getAttribute(uint32_t resID,Res_value * outValue,uint32_t * outTypeSpecFlags) const2576 ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
2577 uint32_t* outTypeSpecFlags) const
2578 {
2579 int cnt = 20;
2580
2581 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
2582
2583 do {
2584 const ssize_t p = mTable.getResourcePackageIndex(resID);
2585 const uint32_t t = Res_GETTYPE(resID);
2586 const uint32_t e = Res_GETENTRY(resID);
2587
2588 TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
2589
2590 if (p >= 0) {
2591 const package_info* const pi = mPackages[p];
2592 TABLE_THEME(ALOGI("Found package: %p", pi));
2593 if (pi != NULL) {
2594 TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes));
2595 if (t < pi->numTypes) {
2596 const type_info& ti = pi->types[t];
2597 TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
2598 if (e < ti.numEntries) {
2599 const theme_entry& te = ti.entries[e];
2600 if (outTypeSpecFlags != NULL) {
2601 *outTypeSpecFlags |= te.typeSpecFlags;
2602 }
2603 TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
2604 te.value.dataType, te.value.data));
2605 const uint8_t type = te.value.dataType;
2606 if (type == Res_value::TYPE_ATTRIBUTE) {
2607 if (cnt > 0) {
2608 cnt--;
2609 resID = te.value.data;
2610 continue;
2611 }
2612 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
2613 return BAD_INDEX;
2614 } else if (type != Res_value::TYPE_NULL) {
2615 *outValue = te.value;
2616 return te.stringBlock;
2617 }
2618 return BAD_INDEX;
2619 }
2620 }
2621 }
2622 }
2623 break;
2624
2625 } while (true);
2626
2627 return BAD_INDEX;
2628 }
2629
resolveAttributeReference(Res_value * inOutValue,ssize_t blockIndex,uint32_t * outLastRef,uint32_t * inoutTypeSpecFlags,ResTable_config * inoutConfig) const2630 ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
2631 ssize_t blockIndex, uint32_t* outLastRef,
2632 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
2633 {
2634 //printf("Resolving type=0x%x\n", inOutValue->dataType);
2635 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
2636 uint32_t newTypeSpecFlags;
2637 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
2638 TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
2639 (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
2640 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
2641 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
2642 if (blockIndex < 0) {
2643 return blockIndex;
2644 }
2645 }
2646 return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
2647 inoutTypeSpecFlags, inoutConfig);
2648 }
2649
dumpToLog() const2650 void ResTable::Theme::dumpToLog() const
2651 {
2652 ALOGI("Theme %p:\n", this);
2653 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2654 package_info* pi = mPackages[i];
2655 if (pi == NULL) continue;
2656
2657 ALOGI(" Package #0x%02x:\n", (int)(i+1));
2658 for (size_t j=0; j<pi->numTypes; j++) {
2659 type_info& ti = pi->types[j];
2660 if (ti.numEntries == 0) continue;
2661
2662 ALOGI(" Type #0x%02x:\n", (int)(j+1));
2663 for (size_t k=0; k<ti.numEntries; k++) {
2664 theme_entry& te = ti.entries[k];
2665 if (te.value.dataType == Res_value::TYPE_NULL) continue;
2666 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
2667 (int)Res_MAKEID(i, j, k),
2668 te.value.dataType, (int)te.value.data, (int)te.stringBlock);
2669 }
2670 }
2671 }
2672 }
2673
ResTable()2674 ResTable::ResTable()
2675 : mError(NO_INIT)
2676 {
2677 memset(&mParams, 0, sizeof(mParams));
2678 memset(mPackageMap, 0, sizeof(mPackageMap));
2679 //ALOGI("Creating ResTable %p\n", this);
2680 }
2681
ResTable(const void * data,size_t size,void * cookie,bool copyData)2682 ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData)
2683 : mError(NO_INIT)
2684 {
2685 memset(&mParams, 0, sizeof(mParams));
2686 memset(mPackageMap, 0, sizeof(mPackageMap));
2687 add(data, size, cookie, copyData);
2688 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
2689 //ALOGI("Creating ResTable %p\n", this);
2690 }
2691
~ResTable()2692 ResTable::~ResTable()
2693 {
2694 //ALOGI("Destroying ResTable in %p\n", this);
2695 uninit();
2696 }
2697
getResourcePackageIndex(uint32_t resID) const2698 inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
2699 {
2700 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
2701 }
2702
add(const void * data,size_t size,void * cookie,bool copyData,const void * idmap)2703 status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData,
2704 const void* idmap)
2705 {
2706 return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap));
2707 }
2708
add(Asset * asset,void * cookie,bool copyData,const void * idmap)2709 status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap)
2710 {
2711 const void* data = asset->getBuffer(true);
2712 if (data == NULL) {
2713 ALOGW("Unable to get buffer of resource asset file");
2714 return UNKNOWN_ERROR;
2715 }
2716 size_t size = (size_t)asset->getLength();
2717 return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap));
2718 }
2719
add(ResTable * src)2720 status_t ResTable::add(ResTable* src)
2721 {
2722 mError = src->mError;
2723
2724 for (size_t i=0; i<src->mHeaders.size(); i++) {
2725 mHeaders.add(src->mHeaders[i]);
2726 }
2727
2728 for (size_t i=0; i<src->mPackageGroups.size(); i++) {
2729 PackageGroup* srcPg = src->mPackageGroups[i];
2730 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
2731 for (size_t j=0; j<srcPg->packages.size(); j++) {
2732 pg->packages.add(srcPg->packages[j]);
2733 }
2734 pg->basePackage = srcPg->basePackage;
2735 pg->typeCount = srcPg->typeCount;
2736 mPackageGroups.add(pg);
2737 }
2738
2739 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
2740
2741 return mError;
2742 }
2743
add(const void * data,size_t size,void * cookie,Asset * asset,bool copyData,const Asset * idmap)2744 status_t ResTable::add(const void* data, size_t size, void* cookie,
2745 Asset* asset, bool copyData, const Asset* idmap)
2746 {
2747 if (!data) return NO_ERROR;
2748 Header* header = new Header(this);
2749 header->index = mHeaders.size();
2750 header->cookie = cookie;
2751 if (idmap != NULL) {
2752 const size_t idmap_size = idmap->getLength();
2753 const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
2754 header->resourceIDMap = (uint32_t*)malloc(idmap_size);
2755 if (header->resourceIDMap == NULL) {
2756 delete header;
2757 return (mError = NO_MEMORY);
2758 }
2759 memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
2760 header->resourceIDMapSize = idmap_size;
2761 }
2762 mHeaders.add(header);
2763
2764 const bool notDeviceEndian = htods(0xf0) != 0xf0;
2765
2766 LOAD_TABLE_NOISY(
2767 ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d "
2768 "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
2769
2770 if (copyData || notDeviceEndian) {
2771 header->ownedData = malloc(size);
2772 if (header->ownedData == NULL) {
2773 return (mError=NO_MEMORY);
2774 }
2775 memcpy(header->ownedData, data, size);
2776 data = header->ownedData;
2777 }
2778
2779 header->header = (const ResTable_header*)data;
2780 header->size = dtohl(header->header->header.size);
2781 //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
2782 // dtohl(header->header->header.size), header->header->header.size);
2783 LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
2784 LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256,
2785 16, 16, 0, false, printToLogFunc));
2786 if (dtohs(header->header->header.headerSize) > header->size
2787 || header->size > size) {
2788 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
2789 (int)dtohs(header->header->header.headerSize),
2790 (int)header->size, (int)size);
2791 return (mError=BAD_TYPE);
2792 }
2793 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
2794 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
2795 (int)dtohs(header->header->header.headerSize),
2796 (int)header->size);
2797 return (mError=BAD_TYPE);
2798 }
2799 header->dataEnd = ((const uint8_t*)header->header) + header->size;
2800
2801 // Iterate through all chunks.
2802 size_t curPackage = 0;
2803
2804 const ResChunk_header* chunk =
2805 (const ResChunk_header*)(((const uint8_t*)header->header)
2806 + dtohs(header->header->header.headerSize));
2807 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
2808 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
2809 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
2810 if (err != NO_ERROR) {
2811 return (mError=err);
2812 }
2813 TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
2814 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
2815 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
2816 const size_t csize = dtohl(chunk->size);
2817 const uint16_t ctype = dtohs(chunk->type);
2818 if (ctype == RES_STRING_POOL_TYPE) {
2819 if (header->values.getError() != NO_ERROR) {
2820 // Only use the first string chunk; ignore any others that
2821 // may appear.
2822 status_t err = header->values.setTo(chunk, csize);
2823 if (err != NO_ERROR) {
2824 return (mError=err);
2825 }
2826 } else {
2827 ALOGW("Multiple string chunks found in resource table.");
2828 }
2829 } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
2830 if (curPackage >= dtohl(header->header->packageCount)) {
2831 ALOGW("More package chunks were found than the %d declared in the header.",
2832 dtohl(header->header->packageCount));
2833 return (mError=BAD_TYPE);
2834 }
2835 uint32_t idmap_id = 0;
2836 if (idmap != NULL) {
2837 uint32_t tmp;
2838 if (getIdmapPackageId(header->resourceIDMap,
2839 header->resourceIDMapSize,
2840 &tmp) == NO_ERROR) {
2841 idmap_id = tmp;
2842 }
2843 }
2844 if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
2845 return mError;
2846 }
2847 curPackage++;
2848 } else {
2849 ALOGW("Unknown chunk type %p in table at %p.\n",
2850 (void*)(int)(ctype),
2851 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
2852 }
2853 chunk = (const ResChunk_header*)
2854 (((const uint8_t*)chunk) + csize);
2855 }
2856
2857 if (curPackage < dtohl(header->header->packageCount)) {
2858 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
2859 (int)curPackage, dtohl(header->header->packageCount));
2860 return (mError=BAD_TYPE);
2861 }
2862 mError = header->values.getError();
2863 if (mError != NO_ERROR) {
2864 ALOGW("No string values found in resource table!");
2865 }
2866
2867 TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
2868 return mError;
2869 }
2870
getError() const2871 status_t ResTable::getError() const
2872 {
2873 return mError;
2874 }
2875
uninit()2876 void ResTable::uninit()
2877 {
2878 mError = NO_INIT;
2879 size_t N = mPackageGroups.size();
2880 for (size_t i=0; i<N; i++) {
2881 PackageGroup* g = mPackageGroups[i];
2882 delete g;
2883 }
2884 N = mHeaders.size();
2885 for (size_t i=0; i<N; i++) {
2886 Header* header = mHeaders[i];
2887 if (header->owner == this) {
2888 if (header->ownedData) {
2889 free(header->ownedData);
2890 }
2891 delete header;
2892 }
2893 }
2894
2895 mPackageGroups.clear();
2896 mHeaders.clear();
2897 }
2898
getResourceName(uint32_t resID,resource_name * outName) const2899 bool ResTable::getResourceName(uint32_t resID, resource_name* outName) const
2900 {
2901 if (mError != NO_ERROR) {
2902 return false;
2903 }
2904
2905 const ssize_t p = getResourcePackageIndex(resID);
2906 const int t = Res_GETTYPE(resID);
2907 const int e = Res_GETENTRY(resID);
2908
2909 if (p < 0) {
2910 if (Res_GETPACKAGE(resID)+1 == 0) {
2911 ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
2912 } else {
2913 ALOGW("No known package when getting name for resource number 0x%08x", resID);
2914 }
2915 return false;
2916 }
2917 if (t < 0) {
2918 ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
2919 return false;
2920 }
2921
2922 const PackageGroup* const grp = mPackageGroups[p];
2923 if (grp == NULL) {
2924 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
2925 return false;
2926 }
2927 if (grp->packages.size() > 0) {
2928 const Package* const package = grp->packages[0];
2929
2930 const ResTable_type* type;
2931 const ResTable_entry* entry;
2932 ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
2933 if (offset <= 0) {
2934 return false;
2935 }
2936
2937 outName->package = grp->name.string();
2938 outName->packageLen = grp->name.size();
2939 outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
2940 outName->name = grp->basePackage->keyStrings.stringAt(
2941 dtohl(entry->key.index), &outName->nameLen);
2942
2943 // If we have a bad index for some reason, we should abort.
2944 if (outName->type == NULL || outName->name == NULL) {
2945 return false;
2946 }
2947
2948 return true;
2949 }
2950
2951 return false;
2952 }
2953
getResource(uint32_t resID,Res_value * outValue,bool mayBeBag,uint16_t density,uint32_t * outSpecFlags,ResTable_config * outConfig) const2954 ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
2955 uint32_t* outSpecFlags, ResTable_config* outConfig) const
2956 {
2957 if (mError != NO_ERROR) {
2958 return mError;
2959 }
2960
2961 const ssize_t p = getResourcePackageIndex(resID);
2962 const int t = Res_GETTYPE(resID);
2963 const int e = Res_GETENTRY(resID);
2964
2965 if (p < 0) {
2966 if (Res_GETPACKAGE(resID)+1 == 0) {
2967 ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
2968 } else {
2969 ALOGW("No known package when getting value for resource number 0x%08x", resID);
2970 }
2971 return BAD_INDEX;
2972 }
2973 if (t < 0) {
2974 ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
2975 return BAD_INDEX;
2976 }
2977
2978 const Res_value* bestValue = NULL;
2979 const Package* bestPackage = NULL;
2980 ResTable_config bestItem;
2981 memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
2982
2983 if (outSpecFlags != NULL) *outSpecFlags = 0;
2984
2985 // Look through all resource packages, starting with the most
2986 // recently added.
2987 const PackageGroup* const grp = mPackageGroups[p];
2988 if (grp == NULL) {
2989 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
2990 return BAD_INDEX;
2991 }
2992
2993 // Allow overriding density
2994 const ResTable_config* desiredConfig = &mParams;
2995 ResTable_config* overrideConfig = NULL;
2996 if (density > 0) {
2997 overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config));
2998 if (overrideConfig == NULL) {
2999 ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno));
3000 return BAD_INDEX;
3001 }
3002 memcpy(overrideConfig, &mParams, sizeof(ResTable_config));
3003 overrideConfig->density = density;
3004 desiredConfig = overrideConfig;
3005 }
3006
3007 ssize_t rc = BAD_VALUE;
3008 size_t ip = grp->packages.size();
3009 while (ip > 0) {
3010 ip--;
3011 int T = t;
3012 int E = e;
3013
3014 const Package* const package = grp->packages[ip];
3015 if (package->header->resourceIDMap) {
3016 uint32_t overlayResID = 0x0;
3017 status_t retval = idmapLookup(package->header->resourceIDMap,
3018 package->header->resourceIDMapSize,
3019 resID, &overlayResID);
3020 if (retval == NO_ERROR && overlayResID != 0x0) {
3021 // for this loop iteration, this is the type and entry we really want
3022 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3023 T = Res_GETTYPE(overlayResID);
3024 E = Res_GETENTRY(overlayResID);
3025 } else {
3026 // resource not present in overlay package, continue with the next package
3027 continue;
3028 }
3029 }
3030
3031 const ResTable_type* type;
3032 const ResTable_entry* entry;
3033 const Type* typeClass;
3034 ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
3035 if (offset <= 0) {
3036 // No {entry, appropriate config} pair found in package. If this
3037 // package is an overlay package (ip != 0), this simply means the
3038 // overlay package did not specify a default.
3039 // Non-overlay packages are still required to provide a default.
3040 if (offset < 0 && ip == 0) {
3041 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
3042 resID, T, E, ip, (int)offset);
3043 rc = offset;
3044 goto out;
3045 }
3046 continue;
3047 }
3048
3049 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
3050 if (!mayBeBag) {
3051 ALOGW("Requesting resource %p failed because it is complex\n",
3052 (void*)resID);
3053 }
3054 continue;
3055 }
3056
3057 TABLE_NOISY(aout << "Resource type data: "
3058 << HexDump(type, dtohl(type->header.size)) << endl);
3059
3060 if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
3061 ALOGW("ResTable_item at %d is beyond type chunk data %d",
3062 (int)offset, dtohl(type->header.size));
3063 rc = BAD_TYPE;
3064 goto out;
3065 }
3066
3067 const Res_value* item =
3068 (const Res_value*)(((const uint8_t*)type) + offset);
3069 ResTable_config thisConfig;
3070 thisConfig.copyFromDtoH(type->config);
3071
3072 if (outSpecFlags != NULL) {
3073 if (typeClass->typeSpecFlags != NULL) {
3074 *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3075 } else {
3076 *outSpecFlags = -1;
3077 }
3078 }
3079
3080 if (bestPackage != NULL &&
3081 (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
3082 // Discard thisConfig not only if bestItem is more specific, but also if the two configs
3083 // are identical (diff == 0), or overlay packages will not take effect.
3084 continue;
3085 }
3086
3087 bestItem = thisConfig;
3088 bestValue = item;
3089 bestPackage = package;
3090 }
3091
3092 TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
3093
3094 if (bestValue) {
3095 outValue->size = dtohs(bestValue->size);
3096 outValue->res0 = bestValue->res0;
3097 outValue->dataType = bestValue->dataType;
3098 outValue->data = dtohl(bestValue->data);
3099 if (outConfig != NULL) {
3100 *outConfig = bestItem;
3101 }
3102 TABLE_NOISY(size_t len;
3103 printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3104 bestPackage->header->index,
3105 outValue->dataType,
3106 outValue->dataType == bestValue->TYPE_STRING
3107 ? String8(bestPackage->header->values.stringAt(
3108 outValue->data, &len)).string()
3109 : "",
3110 outValue->data));
3111 rc = bestPackage->header->index;
3112 goto out;
3113 }
3114
3115 out:
3116 if (overrideConfig != NULL) {
3117 free(overrideConfig);
3118 }
3119
3120 return rc;
3121 }
3122
resolveReference(Res_value * value,ssize_t blockIndex,uint32_t * outLastRef,uint32_t * inoutTypeSpecFlags,ResTable_config * outConfig) const3123 ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3124 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3125 ResTable_config* outConfig) const
3126 {
3127 int count=0;
3128 while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE
3129 && value->data != 0 && count < 20) {
3130 if (outLastRef) *outLastRef = value->data;
3131 uint32_t lastRef = value->data;
3132 uint32_t newFlags = 0;
3133 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3134 outConfig);
3135 if (newIndex == BAD_INDEX) {
3136 return BAD_INDEX;
3137 }
3138 TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3139 (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3140 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3141 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3142 if (newIndex < 0) {
3143 // This can fail if the resource being referenced is a style...
3144 // in this case, just return the reference, and expect the
3145 // caller to deal with.
3146 return blockIndex;
3147 }
3148 blockIndex = newIndex;
3149 count++;
3150 }
3151 return blockIndex;
3152 }
3153
valueToString(const Res_value * value,size_t stringBlock,char16_t tmpBuffer[TMP_BUFFER_SIZE],size_t * outLen)3154 const char16_t* ResTable::valueToString(
3155 const Res_value* value, size_t stringBlock,
3156 char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen)
3157 {
3158 if (!value) {
3159 return NULL;
3160 }
3161 if (value->dataType == value->TYPE_STRING) {
3162 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3163 }
3164 // XXX do int to string conversions.
3165 return NULL;
3166 }
3167
lockBag(uint32_t resID,const bag_entry ** outBag) const3168 ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3169 {
3170 mLock.lock();
3171 ssize_t err = getBagLocked(resID, outBag);
3172 if (err < NO_ERROR) {
3173 //printf("*** get failed! unlocking\n");
3174 mLock.unlock();
3175 }
3176 return err;
3177 }
3178
unlockBag(const bag_entry * bag) const3179 void ResTable::unlockBag(const bag_entry* bag) const
3180 {
3181 //printf("<<< unlockBag %p\n", this);
3182 mLock.unlock();
3183 }
3184
lock() const3185 void ResTable::lock() const
3186 {
3187 mLock.lock();
3188 }
3189
unlock() const3190 void ResTable::unlock() const
3191 {
3192 mLock.unlock();
3193 }
3194
getBagLocked(uint32_t resID,const bag_entry ** outBag,uint32_t * outTypeSpecFlags) const3195 ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3196 uint32_t* outTypeSpecFlags) const
3197 {
3198 if (mError != NO_ERROR) {
3199 return mError;
3200 }
3201
3202 const ssize_t p = getResourcePackageIndex(resID);
3203 const int t = Res_GETTYPE(resID);
3204 const int e = Res_GETENTRY(resID);
3205
3206 if (p < 0) {
3207 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3208 return BAD_INDEX;
3209 }
3210 if (t < 0) {
3211 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3212 return BAD_INDEX;
3213 }
3214
3215 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3216 PackageGroup* const grp = mPackageGroups[p];
3217 if (grp == NULL) {
3218 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3219 return false;
3220 }
3221
3222 if (t >= (int)grp->typeCount) {
3223 ALOGW("Type identifier 0x%x is larger than type count 0x%x",
3224 t+1, (int)grp->typeCount);
3225 return BAD_INDEX;
3226 }
3227
3228 const Package* const basePackage = grp->packages[0];
3229
3230 const Type* const typeConfigs = basePackage->getType(t);
3231
3232 const size_t NENTRY = typeConfigs->entryCount;
3233 if (e >= (int)NENTRY) {
3234 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3235 e, (int)typeConfigs->entryCount);
3236 return BAD_INDEX;
3237 }
3238
3239 // First see if we've already computed this bag...
3240 if (grp->bags) {
3241 bag_set** typeSet = grp->bags[t];
3242 if (typeSet) {
3243 bag_set* set = typeSet[e];
3244 if (set) {
3245 if (set != (bag_set*)0xFFFFFFFF) {
3246 if (outTypeSpecFlags != NULL) {
3247 *outTypeSpecFlags = set->typeSpecFlags;
3248 }
3249 *outBag = (bag_entry*)(set+1);
3250 //ALOGI("Found existing bag for: %p\n", (void*)resID);
3251 return set->numAttrs;
3252 }
3253 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3254 resID);
3255 return BAD_INDEX;
3256 }
3257 }
3258 }
3259
3260 // Bag not found, we need to compute it!
3261 if (!grp->bags) {
3262 grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*));
3263 if (!grp->bags) return NO_MEMORY;
3264 }
3265
3266 bag_set** typeSet = grp->bags[t];
3267 if (!typeSet) {
3268 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3269 if (!typeSet) return NO_MEMORY;
3270 grp->bags[t] = typeSet;
3271 }
3272
3273 // Mark that we are currently working on this one.
3274 typeSet[e] = (bag_set*)0xFFFFFFFF;
3275
3276 // This is what we are building.
3277 bag_set* set = NULL;
3278
3279 TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3280
3281 ResTable_config bestConfig;
3282 memset(&bestConfig, 0, sizeof(bestConfig));
3283
3284 // Now collect all bag attributes from all packages.
3285 size_t ip = grp->packages.size();
3286 while (ip > 0) {
3287 ip--;
3288 int T = t;
3289 int E = e;
3290
3291 const Package* const package = grp->packages[ip];
3292 if (package->header->resourceIDMap) {
3293 uint32_t overlayResID = 0x0;
3294 status_t retval = idmapLookup(package->header->resourceIDMap,
3295 package->header->resourceIDMapSize,
3296 resID, &overlayResID);
3297 if (retval == NO_ERROR && overlayResID != 0x0) {
3298 // for this loop iteration, this is the type and entry we really want
3299 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3300 T = Res_GETTYPE(overlayResID);
3301 E = Res_GETENTRY(overlayResID);
3302 } else {
3303 // resource not present in overlay package, continue with the next package
3304 continue;
3305 }
3306 }
3307
3308 const ResTable_type* type;
3309 const ResTable_entry* entry;
3310 const Type* typeClass;
3311 ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
3312 ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
3313 ALOGV("Resulting offset=%d\n", offset);
3314 if (offset <= 0) {
3315 // No {entry, appropriate config} pair found in package. If this
3316 // package is an overlay package (ip != 0), this simply means the
3317 // overlay package did not specify a default.
3318 // Non-overlay packages are still required to provide a default.
3319 if (offset < 0 && ip == 0) {
3320 if (set) free(set);
3321 return offset;
3322 }
3323 continue;
3324 }
3325
3326 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
3327 ALOGW("Skipping entry %p in package table %d because it is not complex!\n",
3328 (void*)resID, (int)ip);
3329 continue;
3330 }
3331
3332 if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
3333 continue;
3334 }
3335 bestConfig = type->config;
3336 if (set) {
3337 free(set);
3338 set = NULL;
3339 }
3340
3341 const uint16_t entrySize = dtohs(entry->size);
3342 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3343 ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
3344 const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3345 ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
3346
3347 size_t N = count;
3348
3349 TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3350 entrySize, parent, count));
3351
3352 // If this map inherits from another, we need to start
3353 // with its parent's values. Otherwise start out empty.
3354 TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3355 entrySize, parent));
3356 if (parent) {
3357 const bag_entry* parentBag;
3358 uint32_t parentTypeSpecFlags = 0;
3359 const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
3360 const size_t NT = ((NP >= 0) ? NP : 0) + N;
3361 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3362 if (set == NULL) {
3363 return NO_MEMORY;
3364 }
3365 if (NP > 0) {
3366 memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3367 set->numAttrs = NP;
3368 TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3369 } else {
3370 TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3371 set->numAttrs = 0;
3372 }
3373 set->availAttrs = NT;
3374 set->typeSpecFlags = parentTypeSpecFlags;
3375 } else {
3376 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3377 if (set == NULL) {
3378 return NO_MEMORY;
3379 }
3380 set->numAttrs = 0;
3381 set->availAttrs = N;
3382 set->typeSpecFlags = 0;
3383 }
3384
3385 if (typeClass->typeSpecFlags != NULL) {
3386 set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3387 } else {
3388 set->typeSpecFlags = -1;
3389 }
3390
3391 // Now merge in the new attributes...
3392 ssize_t curOff = offset;
3393 const ResTable_map* map;
3394 bag_entry* entries = (bag_entry*)(set+1);
3395 size_t curEntry = 0;
3396 uint32_t pos = 0;
3397 TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3398 set, entries, set->availAttrs));
3399 while (pos < count) {
3400 TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3401
3402 if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
3403 ALOGW("ResTable_map at %d is beyond type chunk data %d",
3404 (int)curOff, dtohl(type->header.size));
3405 return BAD_TYPE;
3406 }
3407 map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
3408 N++;
3409
3410 const uint32_t newName = htodl(map->name.ident);
3411 bool isInside;
3412 uint32_t oldName = 0;
3413 while ((isInside=(curEntry < set->numAttrs))
3414 && (oldName=entries[curEntry].map.name.ident) < newName) {
3415 TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3416 curEntry, entries[curEntry].map.name.ident));
3417 curEntry++;
3418 }
3419
3420 if ((!isInside) || oldName != newName) {
3421 // This is a new attribute... figure out what to do with it.
3422 if (set->numAttrs >= set->availAttrs) {
3423 // Need to alloc more memory...
3424 const size_t newAvail = set->availAttrs+N;
3425 set = (bag_set*)realloc(set,
3426 sizeof(bag_set)
3427 + sizeof(bag_entry)*newAvail);
3428 if (set == NULL) {
3429 return NO_MEMORY;
3430 }
3431 set->availAttrs = newAvail;
3432 entries = (bag_entry*)(set+1);
3433 TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3434 set, entries, set->availAttrs));
3435 }
3436 if (isInside) {
3437 // Going in the middle, need to make space.
3438 memmove(entries+curEntry+1, entries+curEntry,
3439 sizeof(bag_entry)*(set->numAttrs-curEntry));
3440 set->numAttrs++;
3441 }
3442 TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3443 curEntry, newName));
3444 } else {
3445 TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3446 curEntry, oldName));
3447 }
3448
3449 bag_entry* cur = entries+curEntry;
3450
3451 cur->stringBlock = package->header->index;
3452 cur->map.name.ident = newName;
3453 cur->map.value.copyFrom_dtoh(map->value);
3454 TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3455 curEntry, cur, cur->stringBlock, cur->map.name.ident,
3456 cur->map.value.dataType, cur->map.value.data));
3457
3458 // On to the next!
3459 curEntry++;
3460 pos++;
3461 const size_t size = dtohs(map->value.size);
3462 curOff += size + sizeof(*map)-sizeof(map->value);
3463 };
3464 if (curEntry > set->numAttrs) {
3465 set->numAttrs = curEntry;
3466 }
3467 }
3468
3469 // And this is it...
3470 typeSet[e] = set;
3471 if (set) {
3472 if (outTypeSpecFlags != NULL) {
3473 *outTypeSpecFlags = set->typeSpecFlags;
3474 }
3475 *outBag = (bag_entry*)(set+1);
3476 TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3477 return set->numAttrs;
3478 }
3479 return BAD_INDEX;
3480 }
3481
setParameters(const ResTable_config * params)3482 void ResTable::setParameters(const ResTable_config* params)
3483 {
3484 mLock.lock();
3485 TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
3486 mParams = *params;
3487 for (size_t i=0; i<mPackageGroups.size(); i++) {
3488 TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
3489 mPackageGroups[i]->clearBagCache();
3490 }
3491 mLock.unlock();
3492 }
3493
getParameters(ResTable_config * params) const3494 void ResTable::getParameters(ResTable_config* params) const
3495 {
3496 mLock.lock();
3497 *params = mParams;
3498 mLock.unlock();
3499 }
3500
3501 struct id_name_map {
3502 uint32_t id;
3503 size_t len;
3504 char16_t name[6];
3505 };
3506
3507 const static id_name_map ID_NAMES[] = {
3508 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } },
3509 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } },
3510 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } },
3511 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } },
3512 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
3513 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } },
3514 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } },
3515 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } },
3516 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } },
3517 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } },
3518 };
3519
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) const3520 uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
3521 const char16_t* type, size_t typeLen,
3522 const char16_t* package,
3523 size_t packageLen,
3524 uint32_t* outTypeSpecFlags) const
3525 {
3526 TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
3527
3528 // Check for internal resource identifier as the very first thing, so
3529 // that we will always find them even when there are no resources.
3530 if (name[0] == '^') {
3531 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
3532 size_t len;
3533 for (int i=0; i<N; i++) {
3534 const id_name_map* m = ID_NAMES + i;
3535 len = m->len;
3536 if (len != nameLen) {
3537 continue;
3538 }
3539 for (size_t j=1; j<len; j++) {
3540 if (m->name[j] != name[j]) {
3541 goto nope;
3542 }
3543 }
3544 if (outTypeSpecFlags) {
3545 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3546 }
3547 return m->id;
3548 nope:
3549 ;
3550 }
3551 if (nameLen > 7) {
3552 if (name[1] == 'i' && name[2] == 'n'
3553 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
3554 && name[6] == '_') {
3555 int index = atoi(String8(name + 7, nameLen - 7).string());
3556 if (Res_CHECKID(index)) {
3557 ALOGW("Array resource index: %d is too large.",
3558 index);
3559 return 0;
3560 }
3561 if (outTypeSpecFlags) {
3562 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3563 }
3564 return Res_MAKEARRAY(index);
3565 }
3566 }
3567 return 0;
3568 }
3569
3570 if (mError != NO_ERROR) {
3571 return 0;
3572 }
3573
3574 bool fakePublic = false;
3575
3576 // Figure out the package and type we are looking in...
3577
3578 const char16_t* packageEnd = NULL;
3579 const char16_t* typeEnd = NULL;
3580 const char16_t* const nameEnd = name+nameLen;
3581 const char16_t* p = name;
3582 while (p < nameEnd) {
3583 if (*p == ':') packageEnd = p;
3584 else if (*p == '/') typeEnd = p;
3585 p++;
3586 }
3587 if (*name == '@') {
3588 name++;
3589 if (*name == '*') {
3590 fakePublic = true;
3591 name++;
3592 }
3593 }
3594 if (name >= nameEnd) {
3595 return 0;
3596 }
3597
3598 if (packageEnd) {
3599 package = name;
3600 packageLen = packageEnd-name;
3601 name = packageEnd+1;
3602 } else if (!package) {
3603 return 0;
3604 }
3605
3606 if (typeEnd) {
3607 type = name;
3608 typeLen = typeEnd-name;
3609 name = typeEnd+1;
3610 } else if (!type) {
3611 return 0;
3612 }
3613
3614 if (name >= nameEnd) {
3615 return 0;
3616 }
3617 nameLen = nameEnd-name;
3618
3619 TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
3620 String8(type, typeLen).string(),
3621 String8(name, nameLen).string(),
3622 String8(package, packageLen).string()));
3623
3624 const size_t NG = mPackageGroups.size();
3625 for (size_t ig=0; ig<NG; ig++) {
3626 const PackageGroup* group = mPackageGroups[ig];
3627
3628 if (strzcmp16(package, packageLen,
3629 group->name.string(), group->name.size())) {
3630 TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
3631 continue;
3632 }
3633
3634 const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
3635 if (ti < 0) {
3636 TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
3637 continue;
3638 }
3639
3640 const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
3641 if (ei < 0) {
3642 TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
3643 continue;
3644 }
3645
3646 TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
3647
3648 const Type* const typeConfigs = group->packages[0]->getType(ti);
3649 if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
3650 TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
3651 String8(group->name).string(), ti));
3652 }
3653
3654 size_t NTC = typeConfigs->configs.size();
3655 for (size_t tci=0; tci<NTC; tci++) {
3656 const ResTable_type* const ty = typeConfigs->configs[tci];
3657 const uint32_t typeOffset = dtohl(ty->entriesStart);
3658
3659 const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
3660 const uint32_t* const eindex = (const uint32_t*)
3661 (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
3662
3663 const size_t NE = dtohl(ty->entryCount);
3664 for (size_t i=0; i<NE; i++) {
3665 uint32_t offset = dtohl(eindex[i]);
3666 if (offset == ResTable_type::NO_ENTRY) {
3667 continue;
3668 }
3669
3670 offset += typeOffset;
3671
3672 if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
3673 ALOGW("ResTable_entry at %d is beyond type chunk data %d",
3674 offset, dtohl(ty->header.size));
3675 return 0;
3676 }
3677 if ((offset&0x3) != 0) {
3678 ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
3679 (int)offset, (int)group->id, (int)ti+1, (int)i,
3680 String8(package, packageLen).string(),
3681 String8(type, typeLen).string(),
3682 String8(name, nameLen).string());
3683 return 0;
3684 }
3685
3686 const ResTable_entry* const entry = (const ResTable_entry*)
3687 (((const uint8_t*)ty) + offset);
3688 if (dtohs(entry->size) < sizeof(*entry)) {
3689 ALOGW("ResTable_entry size %d is too small", dtohs(entry->size));
3690 return BAD_TYPE;
3691 }
3692
3693 TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
3694 i, ei, dtohl(entry->key.index)));
3695 if (dtohl(entry->key.index) == (size_t)ei) {
3696 if (outTypeSpecFlags) {
3697 *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
3698 if (fakePublic) {
3699 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
3700 }
3701 }
3702 return Res_MAKEID(group->id-1, ti, i);
3703 }
3704 }
3705 }
3706 }
3707
3708 return 0;
3709 }
3710
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)3711 bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
3712 String16* outPackage,
3713 String16* outType,
3714 String16* outName,
3715 const String16* defType,
3716 const String16* defPackage,
3717 const char** outErrorMsg,
3718 bool* outPublicOnly)
3719 {
3720 const char16_t* packageEnd = NULL;
3721 const char16_t* typeEnd = NULL;
3722 const char16_t* p = refStr;
3723 const char16_t* const end = p + refLen;
3724 while (p < end) {
3725 if (*p == ':') packageEnd = p;
3726 else if (*p == '/') {
3727 typeEnd = p;
3728 break;
3729 }
3730 p++;
3731 }
3732 p = refStr;
3733 if (*p == '@') p++;
3734
3735 if (outPublicOnly != NULL) {
3736 *outPublicOnly = true;
3737 }
3738 if (*p == '*') {
3739 p++;
3740 if (outPublicOnly != NULL) {
3741 *outPublicOnly = false;
3742 }
3743 }
3744
3745 if (packageEnd) {
3746 *outPackage = String16(p, packageEnd-p);
3747 p = packageEnd+1;
3748 } else {
3749 if (!defPackage) {
3750 if (outErrorMsg) {
3751 *outErrorMsg = "No resource package specified";
3752 }
3753 return false;
3754 }
3755 *outPackage = *defPackage;
3756 }
3757 if (typeEnd) {
3758 *outType = String16(p, typeEnd-p);
3759 p = typeEnd+1;
3760 } else {
3761 if (!defType) {
3762 if (outErrorMsg) {
3763 *outErrorMsg = "No resource type specified";
3764 }
3765 return false;
3766 }
3767 *outType = *defType;
3768 }
3769 *outName = String16(p, end-p);
3770 if(**outPackage == 0) {
3771 if(outErrorMsg) {
3772 *outErrorMsg = "Resource package cannot be an empty string";
3773 }
3774 return false;
3775 }
3776 if(**outType == 0) {
3777 if(outErrorMsg) {
3778 *outErrorMsg = "Resource type cannot be an empty string";
3779 }
3780 return false;
3781 }
3782 if(**outName == 0) {
3783 if(outErrorMsg) {
3784 *outErrorMsg = "Resource id cannot be an empty string";
3785 }
3786 return false;
3787 }
3788 return true;
3789 }
3790
get_hex(char c,bool * outError)3791 static uint32_t get_hex(char c, bool* outError)
3792 {
3793 if (c >= '0' && c <= '9') {
3794 return c - '0';
3795 } else if (c >= 'a' && c <= 'f') {
3796 return c - 'a' + 0xa;
3797 } else if (c >= 'A' && c <= 'F') {
3798 return c - 'A' + 0xa;
3799 }
3800 *outError = true;
3801 return 0;
3802 }
3803
3804 struct unit_entry
3805 {
3806 const char* name;
3807 size_t len;
3808 uint8_t type;
3809 uint32_t unit;
3810 float scale;
3811 };
3812
3813 static const unit_entry unitNames[] = {
3814 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
3815 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
3816 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
3817 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
3818 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
3819 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
3820 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
3821 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
3822 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
3823 { NULL, 0, 0, 0, 0 }
3824 };
3825
parse_unit(const char * str,Res_value * outValue,float * outScale,const char ** outEnd)3826 static bool parse_unit(const char* str, Res_value* outValue,
3827 float* outScale, const char** outEnd)
3828 {
3829 const char* end = str;
3830 while (*end != 0 && !isspace((unsigned char)*end)) {
3831 end++;
3832 }
3833 const size_t len = end-str;
3834
3835 const char* realEnd = end;
3836 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
3837 realEnd++;
3838 }
3839 if (*realEnd != 0) {
3840 return false;
3841 }
3842
3843 const unit_entry* cur = unitNames;
3844 while (cur->name) {
3845 if (len == cur->len && strncmp(cur->name, str, len) == 0) {
3846 outValue->dataType = cur->type;
3847 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
3848 *outScale = cur->scale;
3849 *outEnd = end;
3850 //printf("Found unit %s for %s\n", cur->name, str);
3851 return true;
3852 }
3853 cur++;
3854 }
3855
3856 return false;
3857 }
3858
3859
stringToInt(const char16_t * s,size_t len,Res_value * outValue)3860 bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
3861 {
3862 while (len > 0 && isspace16(*s)) {
3863 s++;
3864 len--;
3865 }
3866
3867 if (len <= 0) {
3868 return false;
3869 }
3870
3871 size_t i = 0;
3872 int32_t val = 0;
3873 bool neg = false;
3874
3875 if (*s == '-') {
3876 neg = true;
3877 i++;
3878 }
3879
3880 if (s[i] < '0' || s[i] > '9') {
3881 return false;
3882 }
3883
3884 // Decimal or hex?
3885 if (s[i] == '0' && s[i+1] == 'x') {
3886 if (outValue)
3887 outValue->dataType = outValue->TYPE_INT_HEX;
3888 i += 2;
3889 bool error = false;
3890 while (i < len && !error) {
3891 val = (val*16) + get_hex(s[i], &error);
3892 i++;
3893 }
3894 if (error) {
3895 return false;
3896 }
3897 } else {
3898 if (outValue)
3899 outValue->dataType = outValue->TYPE_INT_DEC;
3900 while (i < len) {
3901 if (s[i] < '0' || s[i] > '9') {
3902 return false;
3903 }
3904 val = (val*10) + s[i]-'0';
3905 i++;
3906 }
3907 }
3908
3909 if (neg) val = -val;
3910
3911 while (i < len && isspace16(s[i])) {
3912 i++;
3913 }
3914
3915 if (i == len) {
3916 if (outValue)
3917 outValue->data = val;
3918 return true;
3919 }
3920
3921 return false;
3922 }
3923
stringToFloat(const char16_t * s,size_t len,Res_value * outValue)3924 bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
3925 {
3926 while (len > 0 && isspace16(*s)) {
3927 s++;
3928 len--;
3929 }
3930
3931 if (len <= 0) {
3932 return false;
3933 }
3934
3935 char buf[128];
3936 int i=0;
3937 while (len > 0 && *s != 0 && i < 126) {
3938 if (*s > 255) {
3939 return false;
3940 }
3941 buf[i++] = *s++;
3942 len--;
3943 }
3944
3945 if (len > 0) {
3946 return false;
3947 }
3948 if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
3949 return false;
3950 }
3951
3952 buf[i] = 0;
3953 const char* end;
3954 float f = strtof(buf, (char**)&end);
3955
3956 if (*end != 0 && !isspace((unsigned char)*end)) {
3957 // Might be a unit...
3958 float scale;
3959 if (parse_unit(end, outValue, &scale, &end)) {
3960 f *= scale;
3961 const bool neg = f < 0;
3962 if (neg) f = -f;
3963 uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
3964 uint32_t radix;
3965 uint32_t shift;
3966 if ((bits&0x7fffff) == 0) {
3967 // Always use 23p0 if there is no fraction, just to make
3968 // things easier to read.
3969 radix = Res_value::COMPLEX_RADIX_23p0;
3970 shift = 23;
3971 } else if ((bits&0xffffffffff800000LL) == 0) {
3972 // Magnitude is zero -- can fit in 0 bits of precision.
3973 radix = Res_value::COMPLEX_RADIX_0p23;
3974 shift = 0;
3975 } else if ((bits&0xffffffff80000000LL) == 0) {
3976 // Magnitude can fit in 8 bits of precision.
3977 radix = Res_value::COMPLEX_RADIX_8p15;
3978 shift = 8;
3979 } else if ((bits&0xffffff8000000000LL) == 0) {
3980 // Magnitude can fit in 16 bits of precision.
3981 radix = Res_value::COMPLEX_RADIX_16p7;
3982 shift = 16;
3983 } else {
3984 // Magnitude needs entire range, so no fractional part.
3985 radix = Res_value::COMPLEX_RADIX_23p0;
3986 shift = 23;
3987 }
3988 int32_t mantissa = (int32_t)(
3989 (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
3990 if (neg) {
3991 mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
3992 }
3993 outValue->data |=
3994 (radix<<Res_value::COMPLEX_RADIX_SHIFT)
3995 | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
3996 //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
3997 // f * (neg ? -1 : 1), bits, f*(1<<23),
3998 // radix, shift, outValue->data);
3999 return true;
4000 }
4001 return false;
4002 }
4003
4004 while (*end != 0 && isspace((unsigned char)*end)) {
4005 end++;
4006 }
4007
4008 if (*end == 0) {
4009 if (outValue) {
4010 outValue->dataType = outValue->TYPE_FLOAT;
4011 *(float*)(&outValue->data) = f;
4012 return true;
4013 }
4014 }
4015
4016 return false;
4017 }
4018
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) const4019 bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4020 const char16_t* s, size_t len,
4021 bool preserveSpaces, bool coerceType,
4022 uint32_t attrID,
4023 const String16* defType,
4024 const String16* defPackage,
4025 Accessor* accessor,
4026 void* accessorCookie,
4027 uint32_t attrType,
4028 bool enforcePrivate) const
4029 {
4030 bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4031 const char* errorMsg = NULL;
4032
4033 outValue->size = sizeof(Res_value);
4034 outValue->res0 = 0;
4035
4036 // First strip leading/trailing whitespace. Do this before handling
4037 // escapes, so they can be used to force whitespace into the string.
4038 if (!preserveSpaces) {
4039 while (len > 0 && isspace16(*s)) {
4040 s++;
4041 len--;
4042 }
4043 while (len > 0 && isspace16(s[len-1])) {
4044 len--;
4045 }
4046 // If the string ends with '\', then we keep the space after it.
4047 if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4048 len++;
4049 }
4050 }
4051
4052 //printf("Value for: %s\n", String8(s, len).string());
4053
4054 uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4055 uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4056 bool fromAccessor = false;
4057 if (attrID != 0 && !Res_INTERNALID(attrID)) {
4058 const ssize_t p = getResourcePackageIndex(attrID);
4059 const bag_entry* bag;
4060 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4061 //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4062 if (cnt >= 0) {
4063 while (cnt > 0) {
4064 //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4065 switch (bag->map.name.ident) {
4066 case ResTable_map::ATTR_TYPE:
4067 attrType = bag->map.value.data;
4068 break;
4069 case ResTable_map::ATTR_MIN:
4070 attrMin = bag->map.value.data;
4071 break;
4072 case ResTable_map::ATTR_MAX:
4073 attrMax = bag->map.value.data;
4074 break;
4075 case ResTable_map::ATTR_L10N:
4076 l10nReq = bag->map.value.data;
4077 break;
4078 }
4079 bag++;
4080 cnt--;
4081 }
4082 unlockBag(bag);
4083 } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4084 fromAccessor = true;
4085 if (attrType == ResTable_map::TYPE_ENUM
4086 || attrType == ResTable_map::TYPE_FLAGS
4087 || attrType == ResTable_map::TYPE_INTEGER) {
4088 accessor->getAttributeMin(attrID, &attrMin);
4089 accessor->getAttributeMax(attrID, &attrMax);
4090 }
4091 if (localizationSetting) {
4092 l10nReq = accessor->getAttributeL10N(attrID);
4093 }
4094 }
4095 }
4096
4097 const bool canStringCoerce =
4098 coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4099
4100 if (*s == '@') {
4101 outValue->dataType = outValue->TYPE_REFERENCE;
4102
4103 // Note: we don't check attrType here because the reference can
4104 // be to any other type; we just need to count on the client making
4105 // sure the referenced type is correct.
4106
4107 //printf("Looking up ref: %s\n", String8(s, len).string());
4108
4109 // It's a reference!
4110 if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4111 outValue->data = 0;
4112 return true;
4113 } else {
4114 bool createIfNotFound = false;
4115 const char16_t* resourceRefName;
4116 int resourceNameLen;
4117 if (len > 2 && s[1] == '+') {
4118 createIfNotFound = true;
4119 resourceRefName = s + 2;
4120 resourceNameLen = len - 2;
4121 } else if (len > 2 && s[1] == '*') {
4122 enforcePrivate = false;
4123 resourceRefName = s + 2;
4124 resourceNameLen = len - 2;
4125 } else {
4126 createIfNotFound = false;
4127 resourceRefName = s + 1;
4128 resourceNameLen = len - 1;
4129 }
4130 String16 package, type, name;
4131 if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4132 defType, defPackage, &errorMsg)) {
4133 if (accessor != NULL) {
4134 accessor->reportError(accessorCookie, errorMsg);
4135 }
4136 return false;
4137 }
4138
4139 uint32_t specFlags = 0;
4140 uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4141 type.size(), package.string(), package.size(), &specFlags);
4142 if (rid != 0) {
4143 if (enforcePrivate) {
4144 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4145 if (accessor != NULL) {
4146 accessor->reportError(accessorCookie, "Resource is not public.");
4147 }
4148 return false;
4149 }
4150 }
4151 if (!accessor) {
4152 outValue->data = rid;
4153 return true;
4154 }
4155 rid = Res_MAKEID(
4156 accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4157 Res_GETTYPE(rid), Res_GETENTRY(rid));
4158 TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4159 String8(package).string(), String8(type).string(),
4160 String8(name).string(), rid));
4161 outValue->data = rid;
4162 return true;
4163 }
4164
4165 if (accessor) {
4166 uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4167 createIfNotFound);
4168 if (rid != 0) {
4169 TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4170 String8(package).string(), String8(type).string(),
4171 String8(name).string(), rid));
4172 outValue->data = rid;
4173 return true;
4174 }
4175 }
4176 }
4177
4178 if (accessor != NULL) {
4179 accessor->reportError(accessorCookie, "No resource found that matches the given name");
4180 }
4181 return false;
4182 }
4183
4184 // if we got to here, and localization is required and it's not a reference,
4185 // complain and bail.
4186 if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4187 if (localizationSetting) {
4188 if (accessor != NULL) {
4189 accessor->reportError(accessorCookie, "This attribute must be localized.");
4190 }
4191 }
4192 }
4193
4194 if (*s == '#') {
4195 // It's a color! Convert to an integer of the form 0xaarrggbb.
4196 uint32_t color = 0;
4197 bool error = false;
4198 if (len == 4) {
4199 outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4200 color |= 0xFF000000;
4201 color |= get_hex(s[1], &error) << 20;
4202 color |= get_hex(s[1], &error) << 16;
4203 color |= get_hex(s[2], &error) << 12;
4204 color |= get_hex(s[2], &error) << 8;
4205 color |= get_hex(s[3], &error) << 4;
4206 color |= get_hex(s[3], &error);
4207 } else if (len == 5) {
4208 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4209 color |= get_hex(s[1], &error) << 28;
4210 color |= get_hex(s[1], &error) << 24;
4211 color |= get_hex(s[2], &error) << 20;
4212 color |= get_hex(s[2], &error) << 16;
4213 color |= get_hex(s[3], &error) << 12;
4214 color |= get_hex(s[3], &error) << 8;
4215 color |= get_hex(s[4], &error) << 4;
4216 color |= get_hex(s[4], &error);
4217 } else if (len == 7) {
4218 outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4219 color |= 0xFF000000;
4220 color |= get_hex(s[1], &error) << 20;
4221 color |= get_hex(s[2], &error) << 16;
4222 color |= get_hex(s[3], &error) << 12;
4223 color |= get_hex(s[4], &error) << 8;
4224 color |= get_hex(s[5], &error) << 4;
4225 color |= get_hex(s[6], &error);
4226 } else if (len == 9) {
4227 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4228 color |= get_hex(s[1], &error) << 28;
4229 color |= get_hex(s[2], &error) << 24;
4230 color |= get_hex(s[3], &error) << 20;
4231 color |= get_hex(s[4], &error) << 16;
4232 color |= get_hex(s[5], &error) << 12;
4233 color |= get_hex(s[6], &error) << 8;
4234 color |= get_hex(s[7], &error) << 4;
4235 color |= get_hex(s[8], &error);
4236 } else {
4237 error = true;
4238 }
4239 if (!error) {
4240 if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4241 if (!canStringCoerce) {
4242 if (accessor != NULL) {
4243 accessor->reportError(accessorCookie,
4244 "Color types not allowed");
4245 }
4246 return false;
4247 }
4248 } else {
4249 outValue->data = color;
4250 //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4251 return true;
4252 }
4253 } else {
4254 if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4255 if (accessor != NULL) {
4256 accessor->reportError(accessorCookie, "Color value not valid --"
4257 " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4258 }
4259 #if 0
4260 fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4261 "Resource File", //(const char*)in->getPrintableSource(),
4262 String8(*curTag).string(),
4263 String8(s, len).string());
4264 #endif
4265 return false;
4266 }
4267 }
4268 }
4269
4270 if (*s == '?') {
4271 outValue->dataType = outValue->TYPE_ATTRIBUTE;
4272
4273 // Note: we don't check attrType here because the reference can
4274 // be to any other type; we just need to count on the client making
4275 // sure the referenced type is correct.
4276
4277 //printf("Looking up attr: %s\n", String8(s, len).string());
4278
4279 static const String16 attr16("attr");
4280 String16 package, type, name;
4281 if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4282 &attr16, defPackage, &errorMsg)) {
4283 if (accessor != NULL) {
4284 accessor->reportError(accessorCookie, errorMsg);
4285 }
4286 return false;
4287 }
4288
4289 //printf("Pkg: %s, Type: %s, Name: %s\n",
4290 // String8(package).string(), String8(type).string(),
4291 // String8(name).string());
4292 uint32_t specFlags = 0;
4293 uint32_t rid =
4294 identifierForName(name.string(), name.size(),
4295 type.string(), type.size(),
4296 package.string(), package.size(), &specFlags);
4297 if (rid != 0) {
4298 if (enforcePrivate) {
4299 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4300 if (accessor != NULL) {
4301 accessor->reportError(accessorCookie, "Attribute is not public.");
4302 }
4303 return false;
4304 }
4305 }
4306 if (!accessor) {
4307 outValue->data = rid;
4308 return true;
4309 }
4310 rid = Res_MAKEID(
4311 accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4312 Res_GETTYPE(rid), Res_GETENTRY(rid));
4313 //printf("Incl %s:%s/%s: 0x%08x\n",
4314 // String8(package).string(), String8(type).string(),
4315 // String8(name).string(), rid);
4316 outValue->data = rid;
4317 return true;
4318 }
4319
4320 if (accessor) {
4321 uint32_t rid = accessor->getCustomResource(package, type, name);
4322 if (rid != 0) {
4323 //printf("Mine %s:%s/%s: 0x%08x\n",
4324 // String8(package).string(), String8(type).string(),
4325 // String8(name).string(), rid);
4326 outValue->data = rid;
4327 return true;
4328 }
4329 }
4330
4331 if (accessor != NULL) {
4332 accessor->reportError(accessorCookie, "No resource found that matches the given name");
4333 }
4334 return false;
4335 }
4336
4337 if (stringToInt(s, len, outValue)) {
4338 if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4339 // If this type does not allow integers, but does allow floats,
4340 // fall through on this error case because the float type should
4341 // be able to accept any integer value.
4342 if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4343 if (accessor != NULL) {
4344 accessor->reportError(accessorCookie, "Integer types not allowed");
4345 }
4346 return false;
4347 }
4348 } else {
4349 if (((int32_t)outValue->data) < ((int32_t)attrMin)
4350 || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4351 if (accessor != NULL) {
4352 accessor->reportError(accessorCookie, "Integer value out of range");
4353 }
4354 return false;
4355 }
4356 return true;
4357 }
4358 }
4359
4360 if (stringToFloat(s, len, outValue)) {
4361 if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4362 if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4363 return true;
4364 }
4365 if (!canStringCoerce) {
4366 if (accessor != NULL) {
4367 accessor->reportError(accessorCookie, "Dimension types not allowed");
4368 }
4369 return false;
4370 }
4371 } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4372 if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4373 return true;
4374 }
4375 if (!canStringCoerce) {
4376 if (accessor != NULL) {
4377 accessor->reportError(accessorCookie, "Fraction types not allowed");
4378 }
4379 return false;
4380 }
4381 } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4382 if (!canStringCoerce) {
4383 if (accessor != NULL) {
4384 accessor->reportError(accessorCookie, "Float types not allowed");
4385 }
4386 return false;
4387 }
4388 } else {
4389 return true;
4390 }
4391 }
4392
4393 if (len == 4) {
4394 if ((s[0] == 't' || s[0] == 'T') &&
4395 (s[1] == 'r' || s[1] == 'R') &&
4396 (s[2] == 'u' || s[2] == 'U') &&
4397 (s[3] == 'e' || s[3] == 'E')) {
4398 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4399 if (!canStringCoerce) {
4400 if (accessor != NULL) {
4401 accessor->reportError(accessorCookie, "Boolean types not allowed");
4402 }
4403 return false;
4404 }
4405 } else {
4406 outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4407 outValue->data = (uint32_t)-1;
4408 return true;
4409 }
4410 }
4411 }
4412
4413 if (len == 5) {
4414 if ((s[0] == 'f' || s[0] == 'F') &&
4415 (s[1] == 'a' || s[1] == 'A') &&
4416 (s[2] == 'l' || s[2] == 'L') &&
4417 (s[3] == 's' || s[3] == 'S') &&
4418 (s[4] == 'e' || s[4] == 'E')) {
4419 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4420 if (!canStringCoerce) {
4421 if (accessor != NULL) {
4422 accessor->reportError(accessorCookie, "Boolean types not allowed");
4423 }
4424 return false;
4425 }
4426 } else {
4427 outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4428 outValue->data = 0;
4429 return true;
4430 }
4431 }
4432 }
4433
4434 if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4435 const ssize_t p = getResourcePackageIndex(attrID);
4436 const bag_entry* bag;
4437 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4438 //printf("Got %d for enum\n", cnt);
4439 if (cnt >= 0) {
4440 resource_name rname;
4441 while (cnt > 0) {
4442 if (!Res_INTERNALID(bag->map.name.ident)) {
4443 //printf("Trying attr #%08x\n", bag->map.name.ident);
4444 if (getResourceName(bag->map.name.ident, &rname)) {
4445 #if 0
4446 printf("Matching %s against %s (0x%08x)\n",
4447 String8(s, len).string(),
4448 String8(rname.name, rname.nameLen).string(),
4449 bag->map.name.ident);
4450 #endif
4451 if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4452 outValue->dataType = bag->map.value.dataType;
4453 outValue->data = bag->map.value.data;
4454 unlockBag(bag);
4455 return true;
4456 }
4457 }
4458
4459 }
4460 bag++;
4461 cnt--;
4462 }
4463 unlockBag(bag);
4464 }
4465
4466 if (fromAccessor) {
4467 if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4468 return true;
4469 }
4470 }
4471 }
4472
4473 if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4474 const ssize_t p = getResourcePackageIndex(attrID);
4475 const bag_entry* bag;
4476 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4477 //printf("Got %d for flags\n", cnt);
4478 if (cnt >= 0) {
4479 bool failed = false;
4480 resource_name rname;
4481 outValue->dataType = Res_value::TYPE_INT_HEX;
4482 outValue->data = 0;
4483 const char16_t* end = s + len;
4484 const char16_t* pos = s;
4485 while (pos < end && !failed) {
4486 const char16_t* start = pos;
4487 pos++;
4488 while (pos < end && *pos != '|') {
4489 pos++;
4490 }
4491 //printf("Looking for: %s\n", String8(start, pos-start).string());
4492 const bag_entry* bagi = bag;
4493 ssize_t i;
4494 for (i=0; i<cnt; i++, bagi++) {
4495 if (!Res_INTERNALID(bagi->map.name.ident)) {
4496 //printf("Trying attr #%08x\n", bagi->map.name.ident);
4497 if (getResourceName(bagi->map.name.ident, &rname)) {
4498 #if 0
4499 printf("Matching %s against %s (0x%08x)\n",
4500 String8(start,pos-start).string(),
4501 String8(rname.name, rname.nameLen).string(),
4502 bagi->map.name.ident);
4503 #endif
4504 if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
4505 outValue->data |= bagi->map.value.data;
4506 break;
4507 }
4508 }
4509 }
4510 }
4511 if (i >= cnt) {
4512 // Didn't find this flag identifier.
4513 failed = true;
4514 }
4515 if (pos < end) {
4516 pos++;
4517 }
4518 }
4519 unlockBag(bag);
4520 if (!failed) {
4521 //printf("Final flag value: 0x%lx\n", outValue->data);
4522 return true;
4523 }
4524 }
4525
4526
4527 if (fromAccessor) {
4528 if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
4529 //printf("Final flag value: 0x%lx\n", outValue->data);
4530 return true;
4531 }
4532 }
4533 }
4534
4535 if ((attrType&ResTable_map::TYPE_STRING) == 0) {
4536 if (accessor != NULL) {
4537 accessor->reportError(accessorCookie, "String types not allowed");
4538 }
4539 return false;
4540 }
4541
4542 // Generic string handling...
4543 outValue->dataType = outValue->TYPE_STRING;
4544 if (outString) {
4545 bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
4546 if (accessor != NULL) {
4547 accessor->reportError(accessorCookie, errorMsg);
4548 }
4549 return failed;
4550 }
4551
4552 return true;
4553 }
4554
collectString(String16 * outString,const char16_t * s,size_t len,bool preserveSpaces,const char ** outErrorMsg,bool append)4555 bool ResTable::collectString(String16* outString,
4556 const char16_t* s, size_t len,
4557 bool preserveSpaces,
4558 const char** outErrorMsg,
4559 bool append)
4560 {
4561 String16 tmp;
4562
4563 char quoted = 0;
4564 const char16_t* p = s;
4565 while (p < (s+len)) {
4566 while (p < (s+len)) {
4567 const char16_t c = *p;
4568 if (c == '\\') {
4569 break;
4570 }
4571 if (!preserveSpaces) {
4572 if (quoted == 0 && isspace16(c)
4573 && (c != ' ' || isspace16(*(p+1)))) {
4574 break;
4575 }
4576 if (c == '"' && (quoted == 0 || quoted == '"')) {
4577 break;
4578 }
4579 if (c == '\'' && (quoted == 0 || quoted == '\'')) {
4580 /*
4581 * In practice, when people write ' instead of \'
4582 * in a string, they are doing it by accident
4583 * instead of really meaning to use ' as a quoting
4584 * character. Warn them so they don't lose it.
4585 */
4586 if (outErrorMsg) {
4587 *outErrorMsg = "Apostrophe not preceded by \\";
4588 }
4589 return false;
4590 }
4591 }
4592 p++;
4593 }
4594 if (p < (s+len)) {
4595 if (p > s) {
4596 tmp.append(String16(s, p-s));
4597 }
4598 if (!preserveSpaces && (*p == '"' || *p == '\'')) {
4599 if (quoted == 0) {
4600 quoted = *p;
4601 } else {
4602 quoted = 0;
4603 }
4604 p++;
4605 } else if (!preserveSpaces && isspace16(*p)) {
4606 // Space outside of a quote -- consume all spaces and
4607 // leave a single plain space char.
4608 tmp.append(String16(" "));
4609 p++;
4610 while (p < (s+len) && isspace16(*p)) {
4611 p++;
4612 }
4613 } else if (*p == '\\') {
4614 p++;
4615 if (p < (s+len)) {
4616 switch (*p) {
4617 case 't':
4618 tmp.append(String16("\t"));
4619 break;
4620 case 'n':
4621 tmp.append(String16("\n"));
4622 break;
4623 case '#':
4624 tmp.append(String16("#"));
4625 break;
4626 case '@':
4627 tmp.append(String16("@"));
4628 break;
4629 case '?':
4630 tmp.append(String16("?"));
4631 break;
4632 case '"':
4633 tmp.append(String16("\""));
4634 break;
4635 case '\'':
4636 tmp.append(String16("'"));
4637 break;
4638 case '\\':
4639 tmp.append(String16("\\"));
4640 break;
4641 case 'u':
4642 {
4643 char16_t chr = 0;
4644 int i = 0;
4645 while (i < 4 && p[1] != 0) {
4646 p++;
4647 i++;
4648 int c;
4649 if (*p >= '0' && *p <= '9') {
4650 c = *p - '0';
4651 } else if (*p >= 'a' && *p <= 'f') {
4652 c = *p - 'a' + 10;
4653 } else if (*p >= 'A' && *p <= 'F') {
4654 c = *p - 'A' + 10;
4655 } else {
4656 if (outErrorMsg) {
4657 *outErrorMsg = "Bad character in \\u unicode escape sequence";
4658 }
4659 return false;
4660 }
4661 chr = (chr<<4) | c;
4662 }
4663 tmp.append(String16(&chr, 1));
4664 } break;
4665 default:
4666 // ignore unknown escape chars.
4667 break;
4668 }
4669 p++;
4670 }
4671 }
4672 len -= (p-s);
4673 s = p;
4674 }
4675 }
4676
4677 if (tmp.size() != 0) {
4678 if (len > 0) {
4679 tmp.append(String16(s, len));
4680 }
4681 if (append) {
4682 outString->append(tmp);
4683 } else {
4684 outString->setTo(tmp);
4685 }
4686 } else {
4687 if (append) {
4688 outString->append(String16(s, len));
4689 } else {
4690 outString->setTo(s, len);
4691 }
4692 }
4693
4694 return true;
4695 }
4696
getBasePackageCount() const4697 size_t ResTable::getBasePackageCount() const
4698 {
4699 if (mError != NO_ERROR) {
4700 return 0;
4701 }
4702 return mPackageGroups.size();
4703 }
4704
getBasePackageName(size_t idx) const4705 const char16_t* ResTable::getBasePackageName(size_t idx) const
4706 {
4707 if (mError != NO_ERROR) {
4708 return 0;
4709 }
4710 LOG_FATAL_IF(idx >= mPackageGroups.size(),
4711 "Requested package index %d past package count %d",
4712 (int)idx, (int)mPackageGroups.size());
4713 return mPackageGroups[idx]->name.string();
4714 }
4715
getBasePackageId(size_t idx) const4716 uint32_t ResTable::getBasePackageId(size_t idx) const
4717 {
4718 if (mError != NO_ERROR) {
4719 return 0;
4720 }
4721 LOG_FATAL_IF(idx >= mPackageGroups.size(),
4722 "Requested package index %d past package count %d",
4723 (int)idx, (int)mPackageGroups.size());
4724 return mPackageGroups[idx]->id;
4725 }
4726
getTableCount() const4727 size_t ResTable::getTableCount() const
4728 {
4729 return mHeaders.size();
4730 }
4731
getTableStringBlock(size_t index) const4732 const ResStringPool* ResTable::getTableStringBlock(size_t index) const
4733 {
4734 return &mHeaders[index]->values;
4735 }
4736
getTableCookie(size_t index) const4737 void* ResTable::getTableCookie(size_t index) const
4738 {
4739 return mHeaders[index]->cookie;
4740 }
4741
getConfigurations(Vector<ResTable_config> * configs) const4742 void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
4743 {
4744 const size_t I = mPackageGroups.size();
4745 for (size_t i=0; i<I; i++) {
4746 const PackageGroup* packageGroup = mPackageGroups[i];
4747 const size_t J = packageGroup->packages.size();
4748 for (size_t j=0; j<J; j++) {
4749 const Package* package = packageGroup->packages[j];
4750 const size_t K = package->types.size();
4751 for (size_t k=0; k<K; k++) {
4752 const Type* type = package->types[k];
4753 if (type == NULL) continue;
4754 const size_t L = type->configs.size();
4755 for (size_t l=0; l<L; l++) {
4756 const ResTable_type* config = type->configs[l];
4757 const ResTable_config* cfg = &config->config;
4758 // only insert unique
4759 const size_t M = configs->size();
4760 size_t m;
4761 for (m=0; m<M; m++) {
4762 if (0 == (*configs)[m].compare(*cfg)) {
4763 break;
4764 }
4765 }
4766 // if we didn't find it
4767 if (m == M) {
4768 configs->add(*cfg);
4769 }
4770 }
4771 }
4772 }
4773 }
4774 }
4775
getLocales(Vector<String8> * locales) const4776 void ResTable::getLocales(Vector<String8>* locales) const
4777 {
4778 Vector<ResTable_config> configs;
4779 ALOGV("calling getConfigurations");
4780 getConfigurations(&configs);
4781 ALOGV("called getConfigurations size=%d", (int)configs.size());
4782 const size_t I = configs.size();
4783 for (size_t i=0; i<I; i++) {
4784 char locale[6];
4785 configs[i].getLocale(locale);
4786 const size_t J = locales->size();
4787 size_t j;
4788 for (j=0; j<J; j++) {
4789 if (0 == strcmp(locale, (*locales)[j].string())) {
4790 break;
4791 }
4792 }
4793 if (j == J) {
4794 locales->add(String8(locale));
4795 }
4796 }
4797 }
4798
getEntry(const Package * package,int typeIndex,int entryIndex,const ResTable_config * config,const ResTable_type ** outType,const ResTable_entry ** outEntry,const Type ** outTypeClass) const4799 ssize_t ResTable::getEntry(
4800 const Package* package, int typeIndex, int entryIndex,
4801 const ResTable_config* config,
4802 const ResTable_type** outType, const ResTable_entry** outEntry,
4803 const Type** outTypeClass) const
4804 {
4805 ALOGV("Getting entry from package %p\n", package);
4806 const ResTable_package* const pkg = package->package;
4807
4808 const Type* allTypes = package->getType(typeIndex);
4809 ALOGV("allTypes=%p\n", allTypes);
4810 if (allTypes == NULL) {
4811 ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
4812 return 0;
4813 }
4814
4815 if ((size_t)entryIndex >= allTypes->entryCount) {
4816 ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
4817 entryIndex, (int)allTypes->entryCount);
4818 return BAD_TYPE;
4819 }
4820
4821 const ResTable_type* type = NULL;
4822 uint32_t offset = ResTable_type::NO_ENTRY;
4823 ResTable_config bestConfig;
4824 memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
4825
4826 const size_t NT = allTypes->configs.size();
4827 for (size_t i=0; i<NT; i++) {
4828 const ResTable_type* const thisType = allTypes->configs[i];
4829 if (thisType == NULL) continue;
4830
4831 ResTable_config thisConfig;
4832 thisConfig.copyFromDtoH(thisType->config);
4833
4834 TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n",
4835 entryIndex, typeIndex+1, dtohl(thisType->config.size),
4836 thisConfig.toString().string()));
4837
4838 // Check to make sure this one is valid for the current parameters.
4839 if (config && !thisConfig.match(*config)) {
4840 TABLE_GETENTRY(ALOGI("Does not match config!\n"));
4841 continue;
4842 }
4843
4844 // Check if there is the desired entry in this type.
4845
4846 const uint8_t* const end = ((const uint8_t*)thisType)
4847 + dtohl(thisType->header.size);
4848 const uint32_t* const eindex = (const uint32_t*)
4849 (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
4850
4851 uint32_t thisOffset = dtohl(eindex[entryIndex]);
4852 if (thisOffset == ResTable_type::NO_ENTRY) {
4853 TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n"));
4854 continue;
4855 }
4856
4857 if (type != NULL) {
4858 // Check if this one is less specific than the last found. If so,
4859 // we will skip it. We check starting with things we most care
4860 // about to those we least care about.
4861 if (!thisConfig.isBetterThan(bestConfig, config)) {
4862 TABLE_GETENTRY(ALOGI("This config is worse than last!\n"));
4863 continue;
4864 }
4865 }
4866
4867 type = thisType;
4868 offset = thisOffset;
4869 bestConfig = thisConfig;
4870 TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n"));
4871 if (!config) break;
4872 }
4873
4874 if (type == NULL) {
4875 TABLE_GETENTRY(ALOGI("No value found for requested entry!\n"));
4876 return BAD_INDEX;
4877 }
4878
4879 offset += dtohl(type->entriesStart);
4880 TABLE_NOISY(aout << "Looking in resource table " << package->header->header
4881 << ", typeOff="
4882 << (void*)(((const char*)type)-((const char*)package->header->header))
4883 << ", offset=" << (void*)offset << endl);
4884
4885 if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
4886 ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
4887 offset, dtohl(type->header.size));
4888 return BAD_TYPE;
4889 }
4890 if ((offset&0x3) != 0) {
4891 ALOGW("ResTable_entry at 0x%x is not on an integer boundary",
4892 offset);
4893 return BAD_TYPE;
4894 }
4895
4896 const ResTable_entry* const entry = (const ResTable_entry*)
4897 (((const uint8_t*)type) + offset);
4898 if (dtohs(entry->size) < sizeof(*entry)) {
4899 ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
4900 return BAD_TYPE;
4901 }
4902
4903 *outType = type;
4904 *outEntry = entry;
4905 if (outTypeClass != NULL) {
4906 *outTypeClass = allTypes;
4907 }
4908 return offset + dtohs(entry->size);
4909 }
4910
parsePackage(const ResTable_package * const pkg,const Header * const header,uint32_t idmap_id)4911 status_t ResTable::parsePackage(const ResTable_package* const pkg,
4912 const Header* const header, uint32_t idmap_id)
4913 {
4914 const uint8_t* base = (const uint8_t*)pkg;
4915 status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
4916 header->dataEnd, "ResTable_package");
4917 if (err != NO_ERROR) {
4918 return (mError=err);
4919 }
4920
4921 const size_t pkgSize = dtohl(pkg->header.size);
4922
4923 if (dtohl(pkg->typeStrings) >= pkgSize) {
4924 ALOGW("ResTable_package type strings at %p are past chunk size %p.",
4925 (void*)dtohl(pkg->typeStrings), (void*)pkgSize);
4926 return (mError=BAD_TYPE);
4927 }
4928 if ((dtohl(pkg->typeStrings)&0x3) != 0) {
4929 ALOGW("ResTable_package type strings at %p is not on an integer boundary.",
4930 (void*)dtohl(pkg->typeStrings));
4931 return (mError=BAD_TYPE);
4932 }
4933 if (dtohl(pkg->keyStrings) >= pkgSize) {
4934 ALOGW("ResTable_package key strings at %p are past chunk size %p.",
4935 (void*)dtohl(pkg->keyStrings), (void*)pkgSize);
4936 return (mError=BAD_TYPE);
4937 }
4938 if ((dtohl(pkg->keyStrings)&0x3) != 0) {
4939 ALOGW("ResTable_package key strings at %p is not on an integer boundary.",
4940 (void*)dtohl(pkg->keyStrings));
4941 return (mError=BAD_TYPE);
4942 }
4943
4944 Package* package = NULL;
4945 PackageGroup* group = NULL;
4946 uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
4947 // If at this point id == 0, pkg is an overlay package without a
4948 // corresponding idmap. During regular usage, overlay packages are
4949 // always loaded alongside their idmaps, but during idmap creation
4950 // the package is temporarily loaded by itself.
4951 if (id < 256) {
4952
4953 package = new Package(this, header, pkg);
4954 if (package == NULL) {
4955 return (mError=NO_MEMORY);
4956 }
4957
4958 size_t idx = mPackageMap[id];
4959 if (idx == 0) {
4960 idx = mPackageGroups.size()+1;
4961
4962 char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
4963 strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
4964 group = new PackageGroup(this, String16(tmpName), id);
4965 if (group == NULL) {
4966 delete package;
4967 return (mError=NO_MEMORY);
4968 }
4969
4970 err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
4971 header->dataEnd-(base+dtohl(pkg->typeStrings)));
4972 if (err != NO_ERROR) {
4973 delete group;
4974 delete package;
4975 return (mError=err);
4976 }
4977 err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
4978 header->dataEnd-(base+dtohl(pkg->keyStrings)));
4979 if (err != NO_ERROR) {
4980 delete group;
4981 delete package;
4982 return (mError=err);
4983 }
4984
4985 //printf("Adding new package id %d at index %d\n", id, idx);
4986 err = mPackageGroups.add(group);
4987 if (err < NO_ERROR) {
4988 return (mError=err);
4989 }
4990 group->basePackage = package;
4991
4992 mPackageMap[id] = (uint8_t)idx;
4993 } else {
4994 group = mPackageGroups.itemAt(idx-1);
4995 if (group == NULL) {
4996 return (mError=UNKNOWN_ERROR);
4997 }
4998 }
4999 err = group->packages.add(package);
5000 if (err < NO_ERROR) {
5001 return (mError=err);
5002 }
5003 } else {
5004 LOG_ALWAYS_FATAL("Package id out of range");
5005 return NO_ERROR;
5006 }
5007
5008
5009 // Iterate through all chunks.
5010 size_t curPackage = 0;
5011
5012 const ResChunk_header* chunk =
5013 (const ResChunk_header*)(((const uint8_t*)pkg)
5014 + dtohs(pkg->header.headerSize));
5015 const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5016 while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5017 ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5018 TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5019 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5020 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5021 const size_t csize = dtohl(chunk->size);
5022 const uint16_t ctype = dtohs(chunk->type);
5023 if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5024 const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5025 err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5026 endPos, "ResTable_typeSpec");
5027 if (err != NO_ERROR) {
5028 return (mError=err);
5029 }
5030
5031 const size_t typeSpecSize = dtohl(typeSpec->header.size);
5032
5033 LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5034 (void*)(base-(const uint8_t*)chunk),
5035 dtohs(typeSpec->header.type),
5036 dtohs(typeSpec->header.headerSize),
5037 (void*)typeSize));
5038 // look for block overrun or int overflow when multiplying by 4
5039 if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5040 || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
5041 > typeSpecSize)) {
5042 ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5043 (void*)(dtohs(typeSpec->header.headerSize)
5044 +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
5045 (void*)typeSpecSize);
5046 return (mError=BAD_TYPE);
5047 }
5048
5049 if (typeSpec->id == 0) {
5050 ALOGW("ResTable_type has an id of 0.");
5051 return (mError=BAD_TYPE);
5052 }
5053
5054 while (package->types.size() < typeSpec->id) {
5055 package->types.add(NULL);
5056 }
5057 Type* t = package->types[typeSpec->id-1];
5058 if (t == NULL) {
5059 t = new Type(header, package, dtohl(typeSpec->entryCount));
5060 package->types.editItemAt(typeSpec->id-1) = t;
5061 } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
5062 ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5063 (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
5064 return (mError=BAD_TYPE);
5065 }
5066 t->typeSpecFlags = (const uint32_t*)(
5067 ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5068 t->typeSpec = typeSpec;
5069
5070 } else if (ctype == RES_TABLE_TYPE_TYPE) {
5071 const ResTable_type* type = (const ResTable_type*)(chunk);
5072 err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5073 endPos, "ResTable_type");
5074 if (err != NO_ERROR) {
5075 return (mError=err);
5076 }
5077
5078 const size_t typeSize = dtohl(type->header.size);
5079
5080 LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5081 (void*)(base-(const uint8_t*)chunk),
5082 dtohs(type->header.type),
5083 dtohs(type->header.headerSize),
5084 (void*)typeSize));
5085 if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
5086 > typeSize) {
5087 ALOGW("ResTable_type entry index to %p extends beyond chunk end %p.",
5088 (void*)(dtohs(type->header.headerSize)
5089 +(sizeof(uint32_t)*dtohl(type->entryCount))),
5090 (void*)typeSize);
5091 return (mError=BAD_TYPE);
5092 }
5093 if (dtohl(type->entryCount) != 0
5094 && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5095 ALOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.",
5096 (void*)dtohl(type->entriesStart), (void*)typeSize);
5097 return (mError=BAD_TYPE);
5098 }
5099 if (type->id == 0) {
5100 ALOGW("ResTable_type has an id of 0.");
5101 return (mError=BAD_TYPE);
5102 }
5103
5104 while (package->types.size() < type->id) {
5105 package->types.add(NULL);
5106 }
5107 Type* t = package->types[type->id-1];
5108 if (t == NULL) {
5109 t = new Type(header, package, dtohl(type->entryCount));
5110 package->types.editItemAt(type->id-1) = t;
5111 } else if (dtohl(type->entryCount) != t->entryCount) {
5112 ALOGW("ResTable_type entry count inconsistent: given %d, previously %d",
5113 (int)dtohl(type->entryCount), (int)t->entryCount);
5114 return (mError=BAD_TYPE);
5115 }
5116
5117 TABLE_GETENTRY(
5118 ResTable_config thisConfig;
5119 thisConfig.copyFromDtoH(type->config);
5120 ALOGI("Adding config to type %d: %s\n",
5121 type->id, thisConfig.toString().string()));
5122 t->configs.add(type);
5123 } else {
5124 status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5125 endPos, "ResTable_package:unknown");
5126 if (err != NO_ERROR) {
5127 return (mError=err);
5128 }
5129 }
5130 chunk = (const ResChunk_header*)
5131 (((const uint8_t*)chunk) + csize);
5132 }
5133
5134 if (group->typeCount == 0) {
5135 group->typeCount = package->types.size();
5136 }
5137
5138 return NO_ERROR;
5139 }
5140
createIdmap(const ResTable & overlay,uint32_t originalCrc,uint32_t overlayCrc,void ** outData,size_t * outSize) const5141 status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
5142 void** outData, size_t* outSize) const
5143 {
5144 // see README for details on the format of map
5145 if (mPackageGroups.size() == 0) {
5146 return UNKNOWN_ERROR;
5147 }
5148 if (mPackageGroups[0]->packages.size() == 0) {
5149 return UNKNOWN_ERROR;
5150 }
5151
5152 Vector<Vector<uint32_t> > map;
5153 const PackageGroup* pg = mPackageGroups[0];
5154 const Package* pkg = pg->packages[0];
5155 size_t typeCount = pkg->types.size();
5156 // starting size is header + first item (number of types in map)
5157 *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
5158 const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5159 const uint32_t pkg_id = pkg->package->id << 24;
5160
5161 for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
5162 ssize_t offset = -1;
5163 const Type* typeConfigs = pkg->getType(typeIndex);
5164 ssize_t mapIndex = map.add();
5165 if (mapIndex < 0) {
5166 return NO_MEMORY;
5167 }
5168 Vector<uint32_t>& vector = map.editItemAt(mapIndex);
5169 for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5170 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5171 | (0x00ff0000 & ((typeIndex+1)<<16))
5172 | (0x0000ffff & (entryIndex));
5173 resource_name resName;
5174 if (!this->getResourceName(resID, &resName)) {
5175 ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID);
5176 continue;
5177 }
5178
5179 const String16 overlayType(resName.type, resName.typeLen);
5180 const String16 overlayName(resName.name, resName.nameLen);
5181 uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5182 overlayName.size(),
5183 overlayType.string(),
5184 overlayType.size(),
5185 overlayPackage.string(),
5186 overlayPackage.size());
5187 if (overlayResID != 0) {
5188 // overlay package has package ID == 0, use original package's ID instead
5189 overlayResID |= pkg_id;
5190 }
5191 vector.push(overlayResID);
5192 if (overlayResID != 0 && offset == -1) {
5193 offset = Res_GETENTRY(resID);
5194 }
5195 #if 0
5196 if (overlayResID != 0) {
5197 ALOGD("%s/%s 0x%08x -> 0x%08x\n",
5198 String8(String16(resName.type)).string(),
5199 String8(String16(resName.name)).string(),
5200 resID, overlayResID);
5201 }
5202 #endif
5203 }
5204
5205 if (offset != -1) {
5206 // shave off leading and trailing entries which lack overlay values
5207 vector.removeItemsAt(0, offset);
5208 vector.insertAt((uint32_t)offset, 0, 1);
5209 while (vector.top() == 0) {
5210 vector.pop();
5211 }
5212 // reserve space for number and offset of entries, and the actual entries
5213 *outSize += (2 + vector.size()) * sizeof(uint32_t);
5214 } else {
5215 // no entries of current type defined in overlay package
5216 vector.clear();
5217 // reserve space for type offset
5218 *outSize += 1 * sizeof(uint32_t);
5219 }
5220 }
5221
5222 if ((*outData = malloc(*outSize)) == NULL) {
5223 return NO_MEMORY;
5224 }
5225 uint32_t* data = (uint32_t*)*outData;
5226 *data++ = htodl(IDMAP_MAGIC);
5227 *data++ = htodl(originalCrc);
5228 *data++ = htodl(overlayCrc);
5229 const size_t mapSize = map.size();
5230 *data++ = htodl(mapSize);
5231 size_t offset = mapSize;
5232 for (size_t i = 0; i < mapSize; ++i) {
5233 const Vector<uint32_t>& vector = map.itemAt(i);
5234 const size_t N = vector.size();
5235 if (N == 0) {
5236 *data++ = htodl(0);
5237 } else {
5238 offset++;
5239 *data++ = htodl(offset);
5240 offset += N;
5241 }
5242 }
5243 for (size_t i = 0; i < mapSize; ++i) {
5244 const Vector<uint32_t>& vector = map.itemAt(i);
5245 const size_t N = vector.size();
5246 if (N == 0) {
5247 continue;
5248 }
5249 *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
5250 for (size_t j = 0; j < N; ++j) {
5251 const uint32_t& overlayResID = vector.itemAt(j);
5252 *data++ = htodl(overlayResID);
5253 }
5254 }
5255
5256 return NO_ERROR;
5257 }
5258
getIdmapInfo(const void * idmap,size_t sizeBytes,uint32_t * pOriginalCrc,uint32_t * pOverlayCrc)5259 bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
5260 uint32_t* pOriginalCrc, uint32_t* pOverlayCrc)
5261 {
5262 const uint32_t* map = (const uint32_t*)idmap;
5263 if (!assertIdmapHeader(map, sizeBytes)) {
5264 return false;
5265 }
5266 *pOriginalCrc = map[1];
5267 *pOverlayCrc = map[2];
5268 return true;
5269 }
5270
5271
5272 #ifndef HAVE_ANDROID_OS
5273 #define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
5274
5275 #define CHAR16_ARRAY_EQ(constant, var, len) \
5276 ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
5277
print_complex(uint32_t complex,bool isFraction)5278 void print_complex(uint32_t complex, bool isFraction)
5279 {
5280 const float MANTISSA_MULT =
5281 1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
5282 const float RADIX_MULTS[] = {
5283 1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
5284 1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
5285 };
5286
5287 float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
5288 <<Res_value::COMPLEX_MANTISSA_SHIFT))
5289 * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
5290 & Res_value::COMPLEX_RADIX_MASK];
5291 printf("%f", value);
5292
5293 if (!isFraction) {
5294 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5295 case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
5296 case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
5297 case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
5298 case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
5299 case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
5300 case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
5301 default: printf(" (unknown unit)"); break;
5302 }
5303 } else {
5304 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5305 case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
5306 case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
5307 default: printf(" (unknown unit)"); break;
5308 }
5309 }
5310 }
5311
5312 // Normalize a string for output
normalizeForOutput(const char * input)5313 String8 ResTable::normalizeForOutput( const char *input )
5314 {
5315 String8 ret;
5316 char buff[2];
5317 buff[1] = '\0';
5318
5319 while (*input != '\0') {
5320 switch (*input) {
5321 // All interesting characters are in the ASCII zone, so we are making our own lives
5322 // easier by scanning the string one byte at a time.
5323 case '\\':
5324 ret += "\\\\";
5325 break;
5326 case '\n':
5327 ret += "\\n";
5328 break;
5329 case '"':
5330 ret += "\\\"";
5331 break;
5332 default:
5333 buff[0] = *input;
5334 ret += buff;
5335 break;
5336 }
5337
5338 input++;
5339 }
5340
5341 return ret;
5342 }
5343
print_value(const Package * pkg,const Res_value & value) const5344 void ResTable::print_value(const Package* pkg, const Res_value& value) const
5345 {
5346 if (value.dataType == Res_value::TYPE_NULL) {
5347 printf("(null)\n");
5348 } else if (value.dataType == Res_value::TYPE_REFERENCE) {
5349 printf("(reference) 0x%08x\n", value.data);
5350 } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
5351 printf("(attribute) 0x%08x\n", value.data);
5352 } else if (value.dataType == Res_value::TYPE_STRING) {
5353 size_t len;
5354 const char* str8 = pkg->header->values.string8At(
5355 value.data, &len);
5356 if (str8 != NULL) {
5357 printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
5358 } else {
5359 const char16_t* str16 = pkg->header->values.stringAt(
5360 value.data, &len);
5361 if (str16 != NULL) {
5362 printf("(string16) \"%s\"\n",
5363 normalizeForOutput(String8(str16, len).string()).string());
5364 } else {
5365 printf("(string) null\n");
5366 }
5367 }
5368 } else if (value.dataType == Res_value::TYPE_FLOAT) {
5369 printf("(float) %g\n", *(const float*)&value.data);
5370 } else if (value.dataType == Res_value::TYPE_DIMENSION) {
5371 printf("(dimension) ");
5372 print_complex(value.data, false);
5373 printf("\n");
5374 } else if (value.dataType == Res_value::TYPE_FRACTION) {
5375 printf("(fraction) ");
5376 print_complex(value.data, true);
5377 printf("\n");
5378 } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
5379 || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
5380 printf("(color) #%08x\n", value.data);
5381 } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
5382 printf("(boolean) %s\n", value.data ? "true" : "false");
5383 } else if (value.dataType >= Res_value::TYPE_FIRST_INT
5384 || value.dataType <= Res_value::TYPE_LAST_INT) {
5385 printf("(int) 0x%08x or %d\n", value.data, value.data);
5386 } else {
5387 printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
5388 (int)value.dataType, (int)value.data,
5389 (int)value.size, (int)value.res0);
5390 }
5391 }
5392
print(bool inclValues) const5393 void ResTable::print(bool inclValues) const
5394 {
5395 if (mError != 0) {
5396 printf("mError=0x%x (%s)\n", mError, strerror(mError));
5397 }
5398 #if 0
5399 printf("mParams=%c%c-%c%c,\n",
5400 mParams.language[0], mParams.language[1],
5401 mParams.country[0], mParams.country[1]);
5402 #endif
5403 size_t pgCount = mPackageGroups.size();
5404 printf("Package Groups (%d)\n", (int)pgCount);
5405 for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
5406 const PackageGroup* pg = mPackageGroups[pgIndex];
5407 printf("Package Group %d id=%d packageCount=%d name=%s\n",
5408 (int)pgIndex, pg->id, (int)pg->packages.size(),
5409 String8(pg->name).string());
5410
5411 size_t pkgCount = pg->packages.size();
5412 for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
5413 const Package* pkg = pg->packages[pkgIndex];
5414 size_t typeCount = pkg->types.size();
5415 printf(" Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
5416 pkg->package->id, String8(String16(pkg->package->name)).string(),
5417 (int)typeCount);
5418 for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
5419 const Type* typeConfigs = pkg->getType(typeIndex);
5420 if (typeConfigs == NULL) {
5421 printf(" type %d NULL\n", (int)typeIndex);
5422 continue;
5423 }
5424 const size_t NTC = typeConfigs->configs.size();
5425 printf(" type %d configCount=%d entryCount=%d\n",
5426 (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
5427 if (typeConfigs->typeSpecFlags != NULL) {
5428 for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
5429 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5430 | (0x00ff0000 & ((typeIndex+1)<<16))
5431 | (0x0000ffff & (entryIndex));
5432 resource_name resName;
5433 if (this->getResourceName(resID, &resName)) {
5434 printf(" spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
5435 resID,
5436 CHAR16_TO_CSTR(resName.package, resName.packageLen),
5437 CHAR16_TO_CSTR(resName.type, resName.typeLen),
5438 CHAR16_TO_CSTR(resName.name, resName.nameLen),
5439 dtohl(typeConfigs->typeSpecFlags[entryIndex]));
5440 } else {
5441 printf(" INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
5442 }
5443 }
5444 }
5445 for (size_t configIndex=0; configIndex<NTC; configIndex++) {
5446 const ResTable_type* type = typeConfigs->configs[configIndex];
5447 if ((((uint64_t)type)&0x3) != 0) {
5448 printf(" NON-INTEGER ResTable_type ADDRESS: %p\n", type);
5449 continue;
5450 }
5451 String8 configStr = type->config.toString();
5452 printf(" config %s:\n", configStr.size() > 0
5453 ? configStr.string() : "(default)");
5454 size_t entryCount = dtohl(type->entryCount);
5455 uint32_t entriesStart = dtohl(type->entriesStart);
5456 if ((entriesStart&0x3) != 0) {
5457 printf(" NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart);
5458 continue;
5459 }
5460 uint32_t typeSize = dtohl(type->header.size);
5461 if ((typeSize&0x3) != 0) {
5462 printf(" NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize);
5463 continue;
5464 }
5465 for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
5466
5467 const uint8_t* const end = ((const uint8_t*)type)
5468 + dtohl(type->header.size);
5469 const uint32_t* const eindex = (const uint32_t*)
5470 (((const uint8_t*)type) + dtohs(type->header.headerSize));
5471
5472 uint32_t thisOffset = dtohl(eindex[entryIndex]);
5473 if (thisOffset == ResTable_type::NO_ENTRY) {
5474 continue;
5475 }
5476
5477 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5478 | (0x00ff0000 & ((typeIndex+1)<<16))
5479 | (0x0000ffff & (entryIndex));
5480 resource_name resName;
5481 if (this->getResourceName(resID, &resName)) {
5482 printf(" resource 0x%08x %s:%s/%s: ", resID,
5483 CHAR16_TO_CSTR(resName.package, resName.packageLen),
5484 CHAR16_TO_CSTR(resName.type, resName.typeLen),
5485 CHAR16_TO_CSTR(resName.name, resName.nameLen));
5486 } else {
5487 printf(" INVALID RESOURCE 0x%08x: ", resID);
5488 }
5489 if ((thisOffset&0x3) != 0) {
5490 printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset);
5491 continue;
5492 }
5493 if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
5494 printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n",
5495 (void*)entriesStart, (void*)thisOffset,
5496 (void*)typeSize);
5497 continue;
5498 }
5499
5500 const ResTable_entry* ent = (const ResTable_entry*)
5501 (((const uint8_t*)type) + entriesStart + thisOffset);
5502 if (((entriesStart + thisOffset)&0x3) != 0) {
5503 printf("NON-INTEGER ResTable_entry OFFSET: %p\n",
5504 (void*)(entriesStart + thisOffset));
5505 continue;
5506 }
5507
5508 uint16_t esize = dtohs(ent->size);
5509 if ((esize&0x3) != 0) {
5510 printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize);
5511 continue;
5512 }
5513 if ((thisOffset+esize) > typeSize) {
5514 printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n",
5515 (void*)entriesStart, (void*)thisOffset,
5516 (void*)esize, (void*)typeSize);
5517 continue;
5518 }
5519
5520 const Res_value* valuePtr = NULL;
5521 const ResTable_map_entry* bagPtr = NULL;
5522 Res_value value;
5523 if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
5524 printf("<bag>");
5525 bagPtr = (const ResTable_map_entry*)ent;
5526 } else {
5527 valuePtr = (const Res_value*)
5528 (((const uint8_t*)ent) + esize);
5529 value.copyFrom_dtoh(*valuePtr);
5530 printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
5531 (int)value.dataType, (int)value.data,
5532 (int)value.size, (int)value.res0);
5533 }
5534
5535 if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
5536 printf(" (PUBLIC)");
5537 }
5538 printf("\n");
5539
5540 if (inclValues) {
5541 if (valuePtr != NULL) {
5542 printf(" ");
5543 print_value(pkg, value);
5544 } else if (bagPtr != NULL) {
5545 const int N = dtohl(bagPtr->count);
5546 const uint8_t* baseMapPtr = (const uint8_t*)ent;
5547 size_t mapOffset = esize;
5548 const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5549 printf(" Parent=0x%08x, Count=%d\n",
5550 dtohl(bagPtr->parent.ident), N);
5551 for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
5552 printf(" #%i (Key=0x%08x): ",
5553 i, dtohl(mapPtr->name.ident));
5554 value.copyFrom_dtoh(mapPtr->value);
5555 print_value(pkg, value);
5556 const size_t size = dtohs(mapPtr->value.size);
5557 mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
5558 mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5559 }
5560 }
5561 }
5562 }
5563 }
5564 }
5565 }
5566 }
5567 }
5568
5569 #endif // HAVE_ANDROID_OS
5570
5571 } // namespace android
5572