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
28 #include <stdlib.h>
29 #include <string.h>
30 #include <memory.h>
31 #include <ctype.h>
32 #include <stdint.h>
33
34 #ifndef INT32_MAX
35 #define INT32_MAX ((int32_t)(2147483647))
36 #endif
37
38 #define STRING_POOL_NOISY(x) //x
39 #define XML_NOISY(x) //x
40 #define TABLE_NOISY(x) //x
41 #define TABLE_GETENTRY(x) //x
42 #define TABLE_SUPER_NOISY(x) //x
43 #define LOAD_TABLE_NOISY(x) //x
44 #define TABLE_THEME(x) //x
45
46 namespace android {
47
48 #ifdef HAVE_WINSOCK
49 #undef nhtol
50 #undef htonl
51
52 #ifdef HAVE_LITTLE_ENDIAN
53 #define ntohl(x) ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
54 #define htonl(x) ntohl(x)
55 #define ntohs(x) ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
56 #define htons(x) ntohs(x)
57 #else
58 #define ntohl(x) (x)
59 #define htonl(x) (x)
60 #define ntohs(x) (x)
61 #define htons(x) (x)
62 #endif
63 #endif
64
65 #define IDMAP_MAGIC 0x706d6469
66 // size measured in sizeof(uint32_t)
67 #define IDMAP_HEADER_SIZE (ResTable::IDMAP_HEADER_SIZE_BYTES / sizeof(uint32_t))
68
printToLogFunc(void * cookie,const char * txt)69 static void printToLogFunc(void* cookie, const char* txt)
70 {
71 ALOGV("%s", txt);
72 }
73
74 // Standard C isspace() is only required to look at the low byte of its input, so
75 // produces incorrect results for UTF-16 characters. For safety's sake, assume that
76 // any high-byte UTF-16 code point is not whitespace.
isspace16(char16_t c)77 inline int isspace16(char16_t c) {
78 return (c < 0x0080 && isspace(c));
79 }
80
81 // range checked; guaranteed to NUL-terminate within the stated number of available slots
82 // NOTE: if this truncates the dst string due to running out of space, no attempt is
83 // made to avoid splitting surrogate pairs.
strcpy16_dtoh(uint16_t * dst,const uint16_t * src,size_t avail)84 static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail)
85 {
86 uint16_t* last = dst + avail - 1;
87 while (*src && (dst < last)) {
88 char16_t s = dtohs(*src);
89 *dst++ = s;
90 src++;
91 }
92 *dst = 0;
93 }
94
validate_chunk(const ResChunk_header * chunk,size_t minSize,const uint8_t * dataEnd,const char * name)95 static status_t validate_chunk(const ResChunk_header* chunk,
96 size_t minSize,
97 const uint8_t* dataEnd,
98 const char* name)
99 {
100 const uint16_t headerSize = dtohs(chunk->headerSize);
101 const uint32_t size = dtohl(chunk->size);
102
103 if (headerSize >= minSize) {
104 if (headerSize <= size) {
105 if (((headerSize|size)&0x3) == 0) {
106 if ((ssize_t)size <= (dataEnd-((const uint8_t*)chunk))) {
107 return NO_ERROR;
108 }
109 ALOGW("%s data size %p extends beyond resource end %p.",
110 name, (void*)size,
111 (void*)(dataEnd-((const uint8_t*)chunk)));
112 return BAD_TYPE;
113 }
114 ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
115 name, (int)size, (int)headerSize);
116 return BAD_TYPE;
117 }
118 ALOGW("%s size %p is smaller than header size %p.",
119 name, (void*)size, (void*)(int)headerSize);
120 return BAD_TYPE;
121 }
122 ALOGW("%s header size %p is too small.",
123 name, (void*)(int)headerSize);
124 return BAD_TYPE;
125 }
126
copyFrom_dtoh(const Res_value & src)127 inline void Res_value::copyFrom_dtoh(const Res_value& src)
128 {
129 size = dtohs(src.size);
130 res0 = src.res0;
131 dataType = src.dataType;
132 data = dtohl(src.data);
133 }
134
deviceToFile()135 void Res_png_9patch::deviceToFile()
136 {
137 for (int i = 0; i < numXDivs; i++) {
138 xDivs[i] = htonl(xDivs[i]);
139 }
140 for (int i = 0; i < numYDivs; i++) {
141 yDivs[i] = htonl(yDivs[i]);
142 }
143 paddingLeft = htonl(paddingLeft);
144 paddingRight = htonl(paddingRight);
145 paddingTop = htonl(paddingTop);
146 paddingBottom = htonl(paddingBottom);
147 for (int i=0; i<numColors; i++) {
148 colors[i] = htonl(colors[i]);
149 }
150 }
151
fileToDevice()152 void Res_png_9patch::fileToDevice()
153 {
154 for (int i = 0; i < numXDivs; i++) {
155 xDivs[i] = ntohl(xDivs[i]);
156 }
157 for (int i = 0; i < numYDivs; i++) {
158 yDivs[i] = ntohl(yDivs[i]);
159 }
160 paddingLeft = ntohl(paddingLeft);
161 paddingRight = ntohl(paddingRight);
162 paddingTop = ntohl(paddingTop);
163 paddingBottom = ntohl(paddingBottom);
164 for (int i=0; i<numColors; i++) {
165 colors[i] = ntohl(colors[i]);
166 }
167 }
168
serializedSize()169 size_t Res_png_9patch::serializedSize()
170 {
171 // The size of this struct is 32 bytes on the 32-bit target system
172 // 4 * int8_t
173 // 4 * int32_t
174 // 3 * pointer
175 return 32
176 + numXDivs * sizeof(int32_t)
177 + numYDivs * sizeof(int32_t)
178 + numColors * sizeof(uint32_t);
179 }
180
serialize()181 void* Res_png_9patch::serialize()
182 {
183 // Use calloc since we're going to leave a few holes in the data
184 // and want this to run cleanly under valgrind
185 void* newData = calloc(1, serializedSize());
186 serialize(newData);
187 return newData;
188 }
189
serialize(void * outData)190 void Res_png_9patch::serialize(void * outData)
191 {
192 char* data = (char*) outData;
193 memmove(data, &wasDeserialized, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors
194 memmove(data + 12, &paddingLeft, 16); // copy paddingXXXX
195 data += 32;
196
197 memmove(data, this->xDivs, numXDivs * sizeof(int32_t));
198 data += numXDivs * sizeof(int32_t);
199 memmove(data, this->yDivs, numYDivs * sizeof(int32_t));
200 data += numYDivs * sizeof(int32_t);
201 memmove(data, this->colors, numColors * sizeof(uint32_t));
202 }
203
deserializeInternal(const void * inData,Res_png_9patch * outData)204 static void deserializeInternal(const void* inData, Res_png_9patch* outData) {
205 char* patch = (char*) inData;
206 if (inData != outData) {
207 memmove(&outData->wasDeserialized, patch, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors
208 memmove(&outData->paddingLeft, patch + 12, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors
209 }
210 outData->wasDeserialized = true;
211 char* data = (char*)outData;
212 data += sizeof(Res_png_9patch);
213 outData->xDivs = (int32_t*) data;
214 data += outData->numXDivs * sizeof(int32_t);
215 outData->yDivs = (int32_t*) data;
216 data += outData->numYDivs * sizeof(int32_t);
217 outData->colors = (uint32_t*) data;
218 }
219
assertIdmapHeader(const uint32_t * map,size_t sizeBytes)220 static bool assertIdmapHeader(const uint32_t* map, size_t sizeBytes)
221 {
222 if (sizeBytes < ResTable::IDMAP_HEADER_SIZE_BYTES) {
223 ALOGW("idmap assertion failed: size=%d bytes\n", (int)sizeBytes);
224 return false;
225 }
226 if (*map != htodl(IDMAP_MAGIC)) { // htodl: map data expected to be in correct endianess
227 ALOGW("idmap assertion failed: invalid magic found (is 0x%08x, expected 0x%08x)\n",
228 *map, htodl(IDMAP_MAGIC));
229 return false;
230 }
231 return true;
232 }
233
idmapLookup(const uint32_t * map,size_t sizeBytes,uint32_t key,uint32_t * outValue)234 static status_t idmapLookup(const uint32_t* map, size_t sizeBytes, uint32_t key, uint32_t* outValue)
235 {
236 // see README for details on the format of map
237 if (!assertIdmapHeader(map, sizeBytes)) {
238 return UNKNOWN_ERROR;
239 }
240 map = map + IDMAP_HEADER_SIZE; // skip ahead to data segment
241 // size of data block, in uint32_t
242 const size_t size = (sizeBytes - ResTable::IDMAP_HEADER_SIZE_BYTES) / sizeof(uint32_t);
243 const uint32_t type = Res_GETTYPE(key) + 1; // add one, idmap stores "public" type id
244 const uint32_t entry = Res_GETENTRY(key);
245 const uint32_t typeCount = *map;
246
247 if (type > typeCount) {
248 ALOGW("Resource ID map: type=%d exceeds number of types=%d\n", type, typeCount);
249 return UNKNOWN_ERROR;
250 }
251 if (typeCount > size) {
252 ALOGW("Resource ID map: number of types=%d exceeds size of map=%d\n", typeCount, (int)size);
253 return UNKNOWN_ERROR;
254 }
255 const uint32_t typeOffset = map[type];
256 if (typeOffset == 0) {
257 *outValue = 0;
258 return NO_ERROR;
259 }
260 if (typeOffset + 1 > size) {
261 ALOGW("Resource ID map: type offset=%d exceeds reasonable value, size of map=%d\n",
262 typeOffset, (int)size);
263 return UNKNOWN_ERROR;
264 }
265 const uint32_t entryCount = map[typeOffset];
266 const uint32_t entryOffset = map[typeOffset + 1];
267 if (entryCount == 0 || entry < entryOffset || entry - entryOffset > entryCount - 1) {
268 *outValue = 0;
269 return NO_ERROR;
270 }
271 const uint32_t index = typeOffset + 2 + entry - entryOffset;
272 if (index > size) {
273 ALOGW("Resource ID map: entry index=%d exceeds size of map=%d\n", index, (int)size);
274 *outValue = 0;
275 return NO_ERROR;
276 }
277 *outValue = map[index];
278
279 return NO_ERROR;
280 }
281
getIdmapPackageId(const uint32_t * map,size_t mapSize,uint32_t * outId)282 static status_t getIdmapPackageId(const uint32_t* map, size_t mapSize, uint32_t *outId)
283 {
284 if (!assertIdmapHeader(map, mapSize)) {
285 return UNKNOWN_ERROR;
286 }
287 const uint32_t* p = map + IDMAP_HEADER_SIZE + 1;
288 while (*p == 0) {
289 ++p;
290 }
291 *outId = (map[*p + IDMAP_HEADER_SIZE + 2] >> 24) & 0x000000ff;
292 return NO_ERROR;
293 }
294
deserialize(const void * inData)295 Res_png_9patch* Res_png_9patch::deserialize(const void* inData)
296 {
297 if (sizeof(void*) != sizeof(int32_t)) {
298 ALOGE("Cannot deserialize on non 32-bit system\n");
299 return NULL;
300 }
301 deserializeInternal(inData, (Res_png_9patch*) inData);
302 return (Res_png_9patch*) inData;
303 }
304
305 // --------------------------------------------------------------------
306 // --------------------------------------------------------------------
307 // --------------------------------------------------------------------
308
ResStringPool()309 ResStringPool::ResStringPool()
310 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
311 {
312 }
313
ResStringPool(const void * data,size_t size,bool copyData)314 ResStringPool::ResStringPool(const void* data, size_t size, bool copyData)
315 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
316 {
317 setTo(data, size, copyData);
318 }
319
~ResStringPool()320 ResStringPool::~ResStringPool()
321 {
322 uninit();
323 }
324
setTo(const void * data,size_t size,bool copyData)325 status_t ResStringPool::setTo(const void* data, size_t size, bool copyData)
326 {
327 if (!data || !size) {
328 return (mError=BAD_TYPE);
329 }
330
331 uninit();
332
333 const bool notDeviceEndian = htods(0xf0) != 0xf0;
334
335 if (copyData || notDeviceEndian) {
336 mOwnedData = malloc(size);
337 if (mOwnedData == NULL) {
338 return (mError=NO_MEMORY);
339 }
340 memcpy(mOwnedData, data, size);
341 data = mOwnedData;
342 }
343
344 mHeader = (const ResStringPool_header*)data;
345
346 if (notDeviceEndian) {
347 ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader);
348 h->header.headerSize = dtohs(mHeader->header.headerSize);
349 h->header.type = dtohs(mHeader->header.type);
350 h->header.size = dtohl(mHeader->header.size);
351 h->stringCount = dtohl(mHeader->stringCount);
352 h->styleCount = dtohl(mHeader->styleCount);
353 h->flags = dtohl(mHeader->flags);
354 h->stringsStart = dtohl(mHeader->stringsStart);
355 h->stylesStart = dtohl(mHeader->stylesStart);
356 }
357
358 if (mHeader->header.headerSize > mHeader->header.size
359 || mHeader->header.size > size) {
360 ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
361 (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size);
362 return (mError=BAD_TYPE);
363 }
364 mSize = mHeader->header.size;
365 mEntries = (const uint32_t*)
366 (((const uint8_t*)data)+mHeader->header.headerSize);
367
368 if (mHeader->stringCount > 0) {
369 if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount) // uint32 overflow?
370 || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t)))
371 > size) {
372 ALOGW("Bad string block: entry of %d items extends past data size %d\n",
373 (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))),
374 (int)size);
375 return (mError=BAD_TYPE);
376 }
377
378 size_t charSize;
379 if (mHeader->flags&ResStringPool_header::UTF8_FLAG) {
380 charSize = sizeof(uint8_t);
381 } else {
382 charSize = sizeof(char16_t);
383 }
384
385 mStrings = (const void*)
386 (((const uint8_t*)data)+mHeader->stringsStart);
387 if (mHeader->stringsStart >= (mHeader->header.size-sizeof(uint16_t))) {
388 ALOGW("Bad string block: string pool starts at %d, after total size %d\n",
389 (int)mHeader->stringsStart, (int)mHeader->header.size);
390 return (mError=BAD_TYPE);
391 }
392 if (mHeader->styleCount == 0) {
393 mStringPoolSize =
394 (mHeader->header.size-mHeader->stringsStart)/charSize;
395 } else {
396 // check invariant: styles starts before end of data
397 if (mHeader->stylesStart >= (mHeader->header.size-sizeof(uint16_t))) {
398 ALOGW("Bad style block: style block starts at %d past data size of %d\n",
399 (int)mHeader->stylesStart, (int)mHeader->header.size);
400 return (mError=BAD_TYPE);
401 }
402 // check invariant: styles follow the strings
403 if (mHeader->stylesStart <= mHeader->stringsStart) {
404 ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
405 (int)mHeader->stylesStart, (int)mHeader->stringsStart);
406 return (mError=BAD_TYPE);
407 }
408 mStringPoolSize =
409 (mHeader->stylesStart-mHeader->stringsStart)/charSize;
410 }
411
412 // check invariant: stringCount > 0 requires a string pool to exist
413 if (mStringPoolSize == 0) {
414 ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
415 return (mError=BAD_TYPE);
416 }
417
418 if (notDeviceEndian) {
419 size_t i;
420 uint32_t* e = const_cast<uint32_t*>(mEntries);
421 for (i=0; i<mHeader->stringCount; i++) {
422 e[i] = dtohl(mEntries[i]);
423 }
424 if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) {
425 const char16_t* strings = (const char16_t*)mStrings;
426 char16_t* s = const_cast<char16_t*>(strings);
427 for (i=0; i<mStringPoolSize; i++) {
428 s[i] = dtohs(strings[i]);
429 }
430 }
431 }
432
433 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG &&
434 ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) ||
435 (!mHeader->flags&ResStringPool_header::UTF8_FLAG &&
436 ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) {
437 ALOGW("Bad string block: last string is not 0-terminated\n");
438 return (mError=BAD_TYPE);
439 }
440 } else {
441 mStrings = NULL;
442 mStringPoolSize = 0;
443 }
444
445 if (mHeader->styleCount > 0) {
446 mEntryStyles = mEntries + mHeader->stringCount;
447 // invariant: integer overflow in calculating mEntryStyles
448 if (mEntryStyles < mEntries) {
449 ALOGW("Bad string block: integer overflow finding styles\n");
450 return (mError=BAD_TYPE);
451 }
452
453 if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
454 ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
455 (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
456 (int)size);
457 return (mError=BAD_TYPE);
458 }
459 mStyles = (const uint32_t*)
460 (((const uint8_t*)data)+mHeader->stylesStart);
461 if (mHeader->stylesStart >= mHeader->header.size) {
462 ALOGW("Bad string block: style pool starts %d, after total size %d\n",
463 (int)mHeader->stylesStart, (int)mHeader->header.size);
464 return (mError=BAD_TYPE);
465 }
466 mStylePoolSize =
467 (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
468
469 if (notDeviceEndian) {
470 size_t i;
471 uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
472 for (i=0; i<mHeader->styleCount; i++) {
473 e[i] = dtohl(mEntryStyles[i]);
474 }
475 uint32_t* s = const_cast<uint32_t*>(mStyles);
476 for (i=0; i<mStylePoolSize; i++) {
477 s[i] = dtohl(mStyles[i]);
478 }
479 }
480
481 const ResStringPool_span endSpan = {
482 { htodl(ResStringPool_span::END) },
483 htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
484 };
485 if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
486 &endSpan, sizeof(endSpan)) != 0) {
487 ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
488 return (mError=BAD_TYPE);
489 }
490 } else {
491 mEntryStyles = NULL;
492 mStyles = NULL;
493 mStylePoolSize = 0;
494 }
495
496 return (mError=NO_ERROR);
497 }
498
getError() const499 status_t ResStringPool::getError() const
500 {
501 return mError;
502 }
503
uninit()504 void ResStringPool::uninit()
505 {
506 mError = NO_INIT;
507 if (mHeader != NULL && mCache != NULL) {
508 for (size_t x = 0; x < mHeader->stringCount; x++) {
509 if (mCache[x] != NULL) {
510 free(mCache[x]);
511 mCache[x] = NULL;
512 }
513 }
514 free(mCache);
515 mCache = NULL;
516 }
517 if (mOwnedData) {
518 free(mOwnedData);
519 mOwnedData = NULL;
520 }
521 }
522
523 /**
524 * Strings in UTF-16 format have length indicated by a length encoded in the
525 * stored data. It is either 1 or 2 characters of length data. This allows a
526 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
527 * much data in a string, you're abusing them.
528 *
529 * If the high bit is set, then there are two characters or 4 bytes of length
530 * data encoded. In that case, drop the high bit of the first character and
531 * add it together with the next character.
532 */
533 static inline size_t
decodeLength(const char16_t ** str)534 decodeLength(const char16_t** str)
535 {
536 size_t len = **str;
537 if ((len & 0x8000) != 0) {
538 (*str)++;
539 len = ((len & 0x7FFF) << 16) | **str;
540 }
541 (*str)++;
542 return len;
543 }
544
545 /**
546 * Strings in UTF-8 format have length indicated by a length encoded in the
547 * stored data. It is either 1 or 2 characters of length data. This allows a
548 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
549 * text in another way if you're using that much data in a single string.
550 *
551 * If the high bit is set, then there are two characters or 2 bytes of length
552 * data encoded. In that case, drop the high bit of the first character and
553 * add it together with the next character.
554 */
555 static inline size_t
decodeLength(const uint8_t ** str)556 decodeLength(const uint8_t** str)
557 {
558 size_t len = **str;
559 if ((len & 0x80) != 0) {
560 (*str)++;
561 len = ((len & 0x7F) << 8) | **str;
562 }
563 (*str)++;
564 return len;
565 }
566
stringAt(size_t idx,size_t * u16len) const567 const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const
568 {
569 if (mError == NO_ERROR && idx < mHeader->stringCount) {
570 const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0;
571 const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t));
572 if (off < (mStringPoolSize-1)) {
573 if (!isUTF8) {
574 const char16_t* strings = (char16_t*)mStrings;
575 const char16_t* str = strings+off;
576
577 *u16len = decodeLength(&str);
578 if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) {
579 return str;
580 } else {
581 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
582 (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize);
583 }
584 } else {
585 const uint8_t* strings = (uint8_t*)mStrings;
586 const uint8_t* u8str = strings+off;
587
588 *u16len = decodeLength(&u8str);
589 size_t u8len = decodeLength(&u8str);
590
591 // encLen must be less than 0x7FFF due to encoding.
592 if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) {
593 AutoMutex lock(mDecodeLock);
594
595 if (mCache == NULL) {
596 #ifndef HAVE_ANDROID_OS
597 STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes",
598 mHeader->stringCount*sizeof(char16_t**)));
599 #else
600 // We do not want to be in this case when actually running Android.
601 ALOGW("CREATING STRING CACHE OF %d bytes",
602 mHeader->stringCount*sizeof(char16_t**));
603 #endif
604 mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**));
605 if (mCache == NULL) {
606 ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
607 (int)(mHeader->stringCount*sizeof(char16_t**)));
608 return NULL;
609 }
610 }
611
612 if (mCache[idx] != NULL) {
613 return mCache[idx];
614 }
615
616 ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
617 if (actualLen < 0 || (size_t)actualLen != *u16len) {
618 ALOGW("Bad string block: string #%lld decoded length is not correct "
619 "%lld vs %llu\n",
620 (long long)idx, (long long)actualLen, (long long)*u16len);
621 return NULL;
622 }
623
624 char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t));
625 if (!u16str) {
626 ALOGW("No memory when trying to allocate decode cache for string #%d\n",
627 (int)idx);
628 return NULL;
629 }
630
631 STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str));
632 utf8_to_utf16(u8str, u8len, u16str);
633 mCache[idx] = u16str;
634 return u16str;
635 } else {
636 ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
637 (long long)idx, (long long)(u8str+u8len-strings),
638 (long long)mStringPoolSize);
639 }
640 }
641 } else {
642 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
643 (int)idx, (int)(off*sizeof(uint16_t)),
644 (int)(mStringPoolSize*sizeof(uint16_t)));
645 }
646 }
647 return NULL;
648 }
649
string8At(size_t idx,size_t * outLen) const650 const char* ResStringPool::string8At(size_t idx, size_t* outLen) const
651 {
652 if (mError == NO_ERROR && idx < mHeader->stringCount) {
653 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) {
654 return NULL;
655 }
656 const uint32_t off = mEntries[idx]/sizeof(char);
657 if (off < (mStringPoolSize-1)) {
658 const uint8_t* strings = (uint8_t*)mStrings;
659 const uint8_t* str = strings+off;
660 *outLen = decodeLength(&str);
661 size_t encLen = decodeLength(&str);
662 if ((uint32_t)(str+encLen-strings) < mStringPoolSize) {
663 return (const char*)str;
664 } else {
665 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
666 (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize);
667 }
668 } else {
669 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
670 (int)idx, (int)(off*sizeof(uint16_t)),
671 (int)(mStringPoolSize*sizeof(uint16_t)));
672 }
673 }
674 return NULL;
675 }
676
string8ObjectAt(size_t idx) const677 const String8 ResStringPool::string8ObjectAt(size_t idx) const
678 {
679 size_t len;
680 const char *str = (const char*)string8At(idx, &len);
681 if (str != NULL) {
682 return String8(str);
683 }
684 return String8(stringAt(idx, &len));
685 }
686
styleAt(const ResStringPool_ref & ref) const687 const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
688 {
689 return styleAt(ref.index);
690 }
691
styleAt(size_t idx) const692 const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
693 {
694 if (mError == NO_ERROR && idx < mHeader->styleCount) {
695 const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
696 if (off < mStylePoolSize) {
697 return (const ResStringPool_span*)(mStyles+off);
698 } else {
699 ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
700 (int)idx, (int)(off*sizeof(uint32_t)),
701 (int)(mStylePoolSize*sizeof(uint32_t)));
702 }
703 }
704 return NULL;
705 }
706
indexOfString(const char16_t * str,size_t strLen) const707 ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
708 {
709 if (mError != NO_ERROR) {
710 return mError;
711 }
712
713 size_t len;
714
715 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) {
716 STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()));
717
718 // The string pool contains UTF 8 strings; we don't want to cause
719 // temporary UTF-16 strings to be created as we search.
720 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
721 // Do a binary search for the string... this is a little tricky,
722 // because the strings are sorted with strzcmp16(). So to match
723 // the ordering, we need to convert strings in the pool to UTF-16.
724 // But we don't want to hit the cache, so instead we will have a
725 // local temporary allocation for the conversions.
726 char16_t* convBuffer = (char16_t*)malloc(strLen+4);
727 ssize_t l = 0;
728 ssize_t h = mHeader->stringCount-1;
729
730 ssize_t mid;
731 while (l <= h) {
732 mid = l + (h - l)/2;
733 const uint8_t* s = (const uint8_t*)string8At(mid, &len);
734 int c;
735 if (s != NULL) {
736 char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3);
737 *end = 0;
738 c = strzcmp16(convBuffer, end-convBuffer, str, strLen);
739 } else {
740 c = -1;
741 }
742 STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
743 (const char*)s, c, (int)l, (int)mid, (int)h));
744 if (c == 0) {
745 STRING_POOL_NOISY(ALOGI("MATCH!"));
746 free(convBuffer);
747 return mid;
748 } else if (c < 0) {
749 l = mid + 1;
750 } else {
751 h = mid - 1;
752 }
753 }
754 free(convBuffer);
755 } else {
756 // It is unusual to get the ID from an unsorted string block...
757 // most often this happens because we want to get IDs for style
758 // span tags; since those always appear at the end of the string
759 // block, start searching at the back.
760 String8 str8(str, strLen);
761 const size_t str8Len = str8.size();
762 for (int i=mHeader->stringCount-1; i>=0; i--) {
763 const char* s = string8At(i, &len);
764 STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
765 String8(s).string(),
766 i));
767 if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
768 STRING_POOL_NOISY(ALOGI("MATCH!"));
769 return i;
770 }
771 }
772 }
773
774 } else {
775 STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()));
776
777 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
778 // Do a binary search for the string...
779 ssize_t l = 0;
780 ssize_t h = mHeader->stringCount-1;
781
782 ssize_t mid;
783 while (l <= h) {
784 mid = l + (h - l)/2;
785 const char16_t* s = stringAt(mid, &len);
786 int c = s ? strzcmp16(s, len, str, strLen) : -1;
787 STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
788 String8(s).string(),
789 c, (int)l, (int)mid, (int)h));
790 if (c == 0) {
791 STRING_POOL_NOISY(ALOGI("MATCH!"));
792 return mid;
793 } else if (c < 0) {
794 l = mid + 1;
795 } else {
796 h = mid - 1;
797 }
798 }
799 } else {
800 // It is unusual to get the ID from an unsorted string block...
801 // most often this happens because we want to get IDs for style
802 // span tags; since those always appear at the end of the string
803 // block, start searching at the back.
804 for (int i=mHeader->stringCount-1; i>=0; i--) {
805 const char16_t* s = stringAt(i, &len);
806 STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
807 String8(s).string(),
808 i));
809 if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
810 STRING_POOL_NOISY(ALOGI("MATCH!"));
811 return i;
812 }
813 }
814 }
815 }
816
817 return NAME_NOT_FOUND;
818 }
819
size() const820 size_t ResStringPool::size() const
821 {
822 return (mError == NO_ERROR) ? mHeader->stringCount : 0;
823 }
824
styleCount() const825 size_t ResStringPool::styleCount() const
826 {
827 return (mError == NO_ERROR) ? mHeader->styleCount : 0;
828 }
829
bytes() const830 size_t ResStringPool::bytes() const
831 {
832 return (mError == NO_ERROR) ? mHeader->header.size : 0;
833 }
834
isSorted() const835 bool ResStringPool::isSorted() const
836 {
837 return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
838 }
839
isUTF8() const840 bool ResStringPool::isUTF8() const
841 {
842 return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
843 }
844
845 // --------------------------------------------------------------------
846 // --------------------------------------------------------------------
847 // --------------------------------------------------------------------
848
ResXMLParser(const ResXMLTree & tree)849 ResXMLParser::ResXMLParser(const ResXMLTree& tree)
850 : mTree(tree), mEventCode(BAD_DOCUMENT)
851 {
852 }
853
restart()854 void ResXMLParser::restart()
855 {
856 mCurNode = NULL;
857 mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
858 }
getStrings() const859 const ResStringPool& ResXMLParser::getStrings() const
860 {
861 return mTree.mStrings;
862 }
863
getEventType() const864 ResXMLParser::event_code_t ResXMLParser::getEventType() const
865 {
866 return mEventCode;
867 }
868
next()869 ResXMLParser::event_code_t ResXMLParser::next()
870 {
871 if (mEventCode == START_DOCUMENT) {
872 mCurNode = mTree.mRootNode;
873 mCurExt = mTree.mRootExt;
874 return (mEventCode=mTree.mRootCode);
875 } else if (mEventCode >= FIRST_CHUNK_CODE) {
876 return nextNode();
877 }
878 return mEventCode;
879 }
880
getCommentID() const881 int32_t ResXMLParser::getCommentID() const
882 {
883 return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
884 }
885
getComment(size_t * outLen) const886 const uint16_t* ResXMLParser::getComment(size_t* outLen) const
887 {
888 int32_t id = getCommentID();
889 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
890 }
891
getLineNumber() const892 uint32_t ResXMLParser::getLineNumber() const
893 {
894 return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
895 }
896
getTextID() const897 int32_t ResXMLParser::getTextID() const
898 {
899 if (mEventCode == TEXT) {
900 return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
901 }
902 return -1;
903 }
904
getText(size_t * outLen) const905 const uint16_t* ResXMLParser::getText(size_t* outLen) const
906 {
907 int32_t id = getTextID();
908 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
909 }
910
getTextValue(Res_value * outValue) const911 ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
912 {
913 if (mEventCode == TEXT) {
914 outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
915 return sizeof(Res_value);
916 }
917 return BAD_TYPE;
918 }
919
getNamespacePrefixID() const920 int32_t ResXMLParser::getNamespacePrefixID() const
921 {
922 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
923 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
924 }
925 return -1;
926 }
927
getNamespacePrefix(size_t * outLen) const928 const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
929 {
930 int32_t id = getNamespacePrefixID();
931 //printf("prefix=%d event=%p\n", id, mEventCode);
932 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
933 }
934
getNamespaceUriID() const935 int32_t ResXMLParser::getNamespaceUriID() const
936 {
937 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
938 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
939 }
940 return -1;
941 }
942
getNamespaceUri(size_t * outLen) const943 const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
944 {
945 int32_t id = getNamespaceUriID();
946 //printf("uri=%d event=%p\n", id, mEventCode);
947 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
948 }
949
getElementNamespaceID() const950 int32_t ResXMLParser::getElementNamespaceID() const
951 {
952 if (mEventCode == START_TAG) {
953 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
954 }
955 if (mEventCode == END_TAG) {
956 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
957 }
958 return -1;
959 }
960
getElementNamespace(size_t * outLen) const961 const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
962 {
963 int32_t id = getElementNamespaceID();
964 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
965 }
966
getElementNameID() const967 int32_t ResXMLParser::getElementNameID() const
968 {
969 if (mEventCode == START_TAG) {
970 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
971 }
972 if (mEventCode == END_TAG) {
973 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
974 }
975 return -1;
976 }
977
getElementName(size_t * outLen) const978 const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
979 {
980 int32_t id = getElementNameID();
981 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
982 }
983
getAttributeCount() const984 size_t ResXMLParser::getAttributeCount() const
985 {
986 if (mEventCode == START_TAG) {
987 return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
988 }
989 return 0;
990 }
991
getAttributeNamespaceID(size_t idx) const992 int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
993 {
994 if (mEventCode == START_TAG) {
995 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
996 if (idx < dtohs(tag->attributeCount)) {
997 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
998 (((const uint8_t*)tag)
999 + dtohs(tag->attributeStart)
1000 + (dtohs(tag->attributeSize)*idx));
1001 return dtohl(attr->ns.index);
1002 }
1003 }
1004 return -2;
1005 }
1006
getAttributeNamespace(size_t idx,size_t * outLen) const1007 const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
1008 {
1009 int32_t id = getAttributeNamespaceID(idx);
1010 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode);
1011 //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1012 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1013 }
1014
getAttributeNamespace8(size_t idx,size_t * outLen) const1015 const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const
1016 {
1017 int32_t id = getAttributeNamespaceID(idx);
1018 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode);
1019 //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1020 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1021 }
1022
getAttributeNameID(size_t idx) const1023 int32_t ResXMLParser::getAttributeNameID(size_t idx) const
1024 {
1025 if (mEventCode == START_TAG) {
1026 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1027 if (idx < dtohs(tag->attributeCount)) {
1028 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1029 (((const uint8_t*)tag)
1030 + dtohs(tag->attributeStart)
1031 + (dtohs(tag->attributeSize)*idx));
1032 return dtohl(attr->name.index);
1033 }
1034 }
1035 return -1;
1036 }
1037
getAttributeName(size_t idx,size_t * outLen) const1038 const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
1039 {
1040 int32_t id = getAttributeNameID(idx);
1041 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode);
1042 //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1043 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1044 }
1045
getAttributeName8(size_t idx,size_t * outLen) const1046 const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const
1047 {
1048 int32_t id = getAttributeNameID(idx);
1049 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode);
1050 //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1051 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1052 }
1053
getAttributeNameResID(size_t idx) const1054 uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
1055 {
1056 int32_t id = getAttributeNameID(idx);
1057 if (id >= 0 && (size_t)id < mTree.mNumResIds) {
1058 return dtohl(mTree.mResIds[id]);
1059 }
1060 return 0;
1061 }
1062
getAttributeValueStringID(size_t idx) const1063 int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const
1064 {
1065 if (mEventCode == START_TAG) {
1066 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1067 if (idx < dtohs(tag->attributeCount)) {
1068 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1069 (((const uint8_t*)tag)
1070 + dtohs(tag->attributeStart)
1071 + (dtohs(tag->attributeSize)*idx));
1072 return dtohl(attr->rawValue.index);
1073 }
1074 }
1075 return -1;
1076 }
1077
getAttributeStringValue(size_t idx,size_t * outLen) const1078 const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
1079 {
1080 int32_t id = getAttributeValueStringID(idx);
1081 //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
1082 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1083 }
1084
getAttributeDataType(size_t idx) const1085 int32_t ResXMLParser::getAttributeDataType(size_t idx) const
1086 {
1087 if (mEventCode == START_TAG) {
1088 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1089 if (idx < dtohs(tag->attributeCount)) {
1090 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1091 (((const uint8_t*)tag)
1092 + dtohs(tag->attributeStart)
1093 + (dtohs(tag->attributeSize)*idx));
1094 return attr->typedValue.dataType;
1095 }
1096 }
1097 return Res_value::TYPE_NULL;
1098 }
1099
getAttributeData(size_t idx) const1100 int32_t ResXMLParser::getAttributeData(size_t idx) const
1101 {
1102 if (mEventCode == START_TAG) {
1103 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1104 if (idx < dtohs(tag->attributeCount)) {
1105 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1106 (((const uint8_t*)tag)
1107 + dtohs(tag->attributeStart)
1108 + (dtohs(tag->attributeSize)*idx));
1109 return dtohl(attr->typedValue.data);
1110 }
1111 }
1112 return 0;
1113 }
1114
getAttributeValue(size_t idx,Res_value * outValue) const1115 ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
1116 {
1117 if (mEventCode == START_TAG) {
1118 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1119 if (idx < dtohs(tag->attributeCount)) {
1120 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1121 (((const uint8_t*)tag)
1122 + dtohs(tag->attributeStart)
1123 + (dtohs(tag->attributeSize)*idx));
1124 outValue->copyFrom_dtoh(attr->typedValue);
1125 return sizeof(Res_value);
1126 }
1127 }
1128 return BAD_TYPE;
1129 }
1130
indexOfAttribute(const char * ns,const char * attr) const1131 ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
1132 {
1133 String16 nsStr(ns != NULL ? ns : "");
1134 String16 attrStr(attr);
1135 return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
1136 attrStr.string(), attrStr.size());
1137 }
1138
indexOfAttribute(const char16_t * ns,size_t nsLen,const char16_t * attr,size_t attrLen) const1139 ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
1140 const char16_t* attr, size_t attrLen) const
1141 {
1142 if (mEventCode == START_TAG) {
1143 if (attr == NULL) {
1144 return NAME_NOT_FOUND;
1145 }
1146 const size_t N = getAttributeCount();
1147 if (mTree.mStrings.isUTF8()) {
1148 String8 ns8, attr8;
1149 if (ns != NULL) {
1150 ns8 = String8(ns, nsLen);
1151 }
1152 attr8 = String8(attr, attrLen);
1153 STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen,
1154 attr8.string(), attrLen));
1155 for (size_t i=0; i<N; i++) {
1156 size_t curNsLen = 0, curAttrLen = 0;
1157 const char* curNs = getAttributeNamespace8(i, &curNsLen);
1158 const char* curAttr = getAttributeName8(i, &curAttrLen);
1159 STRING_POOL_NOISY(ALOGI(" curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen,
1160 curAttr, curAttrLen));
1161 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1162 && memcmp(attr8.string(), curAttr, attrLen) == 0) {
1163 if (ns == NULL) {
1164 if (curNs == NULL) {
1165 STRING_POOL_NOISY(ALOGI(" FOUND!"));
1166 return i;
1167 }
1168 } else if (curNs != NULL) {
1169 //printf(" --> ns=%s, curNs=%s\n",
1170 // String8(ns).string(), String8(curNs).string());
1171 if (memcmp(ns8.string(), curNs, nsLen) == 0) {
1172 STRING_POOL_NOISY(ALOGI(" FOUND!"));
1173 return i;
1174 }
1175 }
1176 }
1177 }
1178 } else {
1179 STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)",
1180 String8(ns, nsLen).string(), nsLen,
1181 String8(attr, attrLen).string(), attrLen));
1182 for (size_t i=0; i<N; i++) {
1183 size_t curNsLen = 0, curAttrLen = 0;
1184 const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
1185 const char16_t* curAttr = getAttributeName(i, &curAttrLen);
1186 STRING_POOL_NOISY(ALOGI(" curNs=%s (%d), curAttr=%s (%d)",
1187 String8(curNs, curNsLen).string(), curNsLen,
1188 String8(curAttr, curAttrLen).string(), curAttrLen));
1189 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1190 && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) {
1191 if (ns == NULL) {
1192 if (curNs == NULL) {
1193 STRING_POOL_NOISY(ALOGI(" FOUND!"));
1194 return i;
1195 }
1196 } else if (curNs != NULL) {
1197 //printf(" --> ns=%s, curNs=%s\n",
1198 // String8(ns).string(), String8(curNs).string());
1199 if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) {
1200 STRING_POOL_NOISY(ALOGI(" FOUND!"));
1201 return i;
1202 }
1203 }
1204 }
1205 }
1206 }
1207 }
1208
1209 return NAME_NOT_FOUND;
1210 }
1211
indexOfID() const1212 ssize_t ResXMLParser::indexOfID() const
1213 {
1214 if (mEventCode == START_TAG) {
1215 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
1216 if (idx > 0) return (idx-1);
1217 }
1218 return NAME_NOT_FOUND;
1219 }
1220
indexOfClass() const1221 ssize_t ResXMLParser::indexOfClass() const
1222 {
1223 if (mEventCode == START_TAG) {
1224 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
1225 if (idx > 0) return (idx-1);
1226 }
1227 return NAME_NOT_FOUND;
1228 }
1229
indexOfStyle() const1230 ssize_t ResXMLParser::indexOfStyle() const
1231 {
1232 if (mEventCode == START_TAG) {
1233 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
1234 if (idx > 0) return (idx-1);
1235 }
1236 return NAME_NOT_FOUND;
1237 }
1238
nextNode()1239 ResXMLParser::event_code_t ResXMLParser::nextNode()
1240 {
1241 if (mEventCode < 0) {
1242 return mEventCode;
1243 }
1244
1245 do {
1246 const ResXMLTree_node* next = (const ResXMLTree_node*)
1247 (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
1248 //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
1249
1250 if (((const uint8_t*)next) >= mTree.mDataEnd) {
1251 mCurNode = NULL;
1252 return (mEventCode=END_DOCUMENT);
1253 }
1254
1255 if (mTree.validateNode(next) != NO_ERROR) {
1256 mCurNode = NULL;
1257 return (mEventCode=BAD_DOCUMENT);
1258 }
1259
1260 mCurNode = next;
1261 const uint16_t headerSize = dtohs(next->header.headerSize);
1262 const uint32_t totalSize = dtohl(next->header.size);
1263 mCurExt = ((const uint8_t*)next) + headerSize;
1264 size_t minExtSize = 0;
1265 event_code_t eventCode = (event_code_t)dtohs(next->header.type);
1266 switch ((mEventCode=eventCode)) {
1267 case RES_XML_START_NAMESPACE_TYPE:
1268 case RES_XML_END_NAMESPACE_TYPE:
1269 minExtSize = sizeof(ResXMLTree_namespaceExt);
1270 break;
1271 case RES_XML_START_ELEMENT_TYPE:
1272 minExtSize = sizeof(ResXMLTree_attrExt);
1273 break;
1274 case RES_XML_END_ELEMENT_TYPE:
1275 minExtSize = sizeof(ResXMLTree_endElementExt);
1276 break;
1277 case RES_XML_CDATA_TYPE:
1278 minExtSize = sizeof(ResXMLTree_cdataExt);
1279 break;
1280 default:
1281 ALOGW("Unknown XML block: header type %d in node at %d\n",
1282 (int)dtohs(next->header.type),
1283 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
1284 continue;
1285 }
1286
1287 if ((totalSize-headerSize) < minExtSize) {
1288 ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
1289 (int)dtohs(next->header.type),
1290 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
1291 (int)(totalSize-headerSize), (int)minExtSize);
1292 return (mEventCode=BAD_DOCUMENT);
1293 }
1294
1295 //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
1296 // mCurNode, mCurExt, headerSize, minExtSize);
1297
1298 return eventCode;
1299 } while (true);
1300 }
1301
getPosition(ResXMLParser::ResXMLPosition * pos) const1302 void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1303 {
1304 pos->eventCode = mEventCode;
1305 pos->curNode = mCurNode;
1306 pos->curExt = mCurExt;
1307 }
1308
setPosition(const ResXMLParser::ResXMLPosition & pos)1309 void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
1310 {
1311 mEventCode = pos.eventCode;
1312 mCurNode = pos.curNode;
1313 mCurExt = pos.curExt;
1314 }
1315
1316
1317 // --------------------------------------------------------------------
1318
1319 static volatile int32_t gCount = 0;
1320
ResXMLTree()1321 ResXMLTree::ResXMLTree()
1322 : ResXMLParser(*this)
1323 , mError(NO_INIT), mOwnedData(NULL)
1324 {
1325 //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1326 restart();
1327 }
1328
ResXMLTree(const void * data,size_t size,bool copyData)1329 ResXMLTree::ResXMLTree(const void* data, size_t size, bool copyData)
1330 : ResXMLParser(*this)
1331 , mError(NO_INIT), mOwnedData(NULL)
1332 {
1333 //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1334 setTo(data, size, copyData);
1335 }
1336
~ResXMLTree()1337 ResXMLTree::~ResXMLTree()
1338 {
1339 //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1340 uninit();
1341 }
1342
setTo(const void * data,size_t size,bool copyData)1343 status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1344 {
1345 uninit();
1346 mEventCode = START_DOCUMENT;
1347
1348 if (!data || !size) {
1349 return (mError=BAD_TYPE);
1350 }
1351
1352 if (copyData) {
1353 mOwnedData = malloc(size);
1354 if (mOwnedData == NULL) {
1355 return (mError=NO_MEMORY);
1356 }
1357 memcpy(mOwnedData, data, size);
1358 data = mOwnedData;
1359 }
1360
1361 mHeader = (const ResXMLTree_header*)data;
1362 mSize = dtohl(mHeader->header.size);
1363 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1364 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1365 (int)dtohs(mHeader->header.headerSize),
1366 (int)dtohl(mHeader->header.size), (int)size);
1367 mError = BAD_TYPE;
1368 restart();
1369 return mError;
1370 }
1371 mDataEnd = ((const uint8_t*)mHeader) + mSize;
1372
1373 mStrings.uninit();
1374 mRootNode = NULL;
1375 mResIds = NULL;
1376 mNumResIds = 0;
1377
1378 // First look for a couple interesting chunks: the string block
1379 // and first XML node.
1380 const ResChunk_header* chunk =
1381 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1382 const ResChunk_header* lastChunk = chunk;
1383 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1384 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1385 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1386 if (err != NO_ERROR) {
1387 mError = err;
1388 goto done;
1389 }
1390 const uint16_t type = dtohs(chunk->type);
1391 const size_t size = dtohl(chunk->size);
1392 XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1393 (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1394 if (type == RES_STRING_POOL_TYPE) {
1395 mStrings.setTo(chunk, size);
1396 } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1397 mResIds = (const uint32_t*)
1398 (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1399 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1400 } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1401 && type <= RES_XML_LAST_CHUNK_TYPE) {
1402 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1403 mError = BAD_TYPE;
1404 goto done;
1405 }
1406 mCurNode = (const ResXMLTree_node*)lastChunk;
1407 if (nextNode() == BAD_DOCUMENT) {
1408 mError = BAD_TYPE;
1409 goto done;
1410 }
1411 mRootNode = mCurNode;
1412 mRootExt = mCurExt;
1413 mRootCode = mEventCode;
1414 break;
1415 } else {
1416 XML_NOISY(printf("Skipping unknown chunk!\n"));
1417 }
1418 lastChunk = chunk;
1419 chunk = (const ResChunk_header*)
1420 (((const uint8_t*)chunk) + size);
1421 }
1422
1423 if (mRootNode == NULL) {
1424 ALOGW("Bad XML block: no root element node found\n");
1425 mError = BAD_TYPE;
1426 goto done;
1427 }
1428
1429 mError = mStrings.getError();
1430
1431 done:
1432 restart();
1433 return mError;
1434 }
1435
getError() const1436 status_t ResXMLTree::getError() const
1437 {
1438 return mError;
1439 }
1440
uninit()1441 void ResXMLTree::uninit()
1442 {
1443 mError = NO_INIT;
1444 mStrings.uninit();
1445 if (mOwnedData) {
1446 free(mOwnedData);
1447 mOwnedData = NULL;
1448 }
1449 restart();
1450 }
1451
validateNode(const ResXMLTree_node * node) const1452 status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1453 {
1454 const uint16_t eventCode = dtohs(node->header.type);
1455
1456 status_t err = validate_chunk(
1457 &node->header, sizeof(ResXMLTree_node),
1458 mDataEnd, "ResXMLTree_node");
1459
1460 if (err >= NO_ERROR) {
1461 // Only perform additional validation on START nodes
1462 if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1463 return NO_ERROR;
1464 }
1465
1466 const uint16_t headerSize = dtohs(node->header.headerSize);
1467 const uint32_t size = dtohl(node->header.size);
1468 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1469 (((const uint8_t*)node) + headerSize);
1470 // check for sensical values pulled out of the stream so far...
1471 if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1472 && ((void*)attrExt > (void*)node)) {
1473 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1474 * dtohs(attrExt->attributeCount);
1475 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1476 return NO_ERROR;
1477 }
1478 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1479 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1480 (unsigned int)(size-headerSize));
1481 }
1482 else {
1483 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1484 (unsigned int)headerSize, (unsigned int)size);
1485 }
1486 return BAD_TYPE;
1487 }
1488
1489 return err;
1490
1491 #if 0
1492 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1493
1494 const uint16_t headerSize = dtohs(node->header.headerSize);
1495 const uint32_t size = dtohl(node->header.size);
1496
1497 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1498 if (size >= headerSize) {
1499 if (((const uint8_t*)node) <= (mDataEnd-size)) {
1500 if (!isStart) {
1501 return NO_ERROR;
1502 }
1503 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1504 <= (size-headerSize)) {
1505 return NO_ERROR;
1506 }
1507 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1508 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1509 (int)(size-headerSize));
1510 return BAD_TYPE;
1511 }
1512 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1513 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1514 return BAD_TYPE;
1515 }
1516 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1517 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1518 (int)headerSize, (int)size);
1519 return BAD_TYPE;
1520 }
1521 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1522 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1523 (int)headerSize);
1524 return BAD_TYPE;
1525 #endif
1526 }
1527
1528 // --------------------------------------------------------------------
1529 // --------------------------------------------------------------------
1530 // --------------------------------------------------------------------
1531
copyFromDeviceNoSwap(const ResTable_config & o)1532 void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1533 const size_t size = dtohl(o.size);
1534 if (size >= sizeof(ResTable_config)) {
1535 *this = o;
1536 } else {
1537 memcpy(this, &o, size);
1538 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1539 }
1540 }
1541
copyFromDtoH(const ResTable_config & o)1542 void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1543 copyFromDeviceNoSwap(o);
1544 size = sizeof(ResTable_config);
1545 mcc = dtohs(mcc);
1546 mnc = dtohs(mnc);
1547 density = dtohs(density);
1548 screenWidth = dtohs(screenWidth);
1549 screenHeight = dtohs(screenHeight);
1550 sdkVersion = dtohs(sdkVersion);
1551 minorVersion = dtohs(minorVersion);
1552 smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1553 screenWidthDp = dtohs(screenWidthDp);
1554 screenHeightDp = dtohs(screenHeightDp);
1555 }
1556
swapHtoD()1557 void ResTable_config::swapHtoD() {
1558 size = htodl(size);
1559 mcc = htods(mcc);
1560 mnc = htods(mnc);
1561 density = htods(density);
1562 screenWidth = htods(screenWidth);
1563 screenHeight = htods(screenHeight);
1564 sdkVersion = htods(sdkVersion);
1565 minorVersion = htods(minorVersion);
1566 smallestScreenWidthDp = htods(smallestScreenWidthDp);
1567 screenWidthDp = htods(screenWidthDp);
1568 screenHeightDp = htods(screenHeightDp);
1569 }
1570
compare(const ResTable_config & o) const1571 int ResTable_config::compare(const ResTable_config& o) const {
1572 int32_t diff = (int32_t)(imsi - o.imsi);
1573 if (diff != 0) return diff;
1574 diff = (int32_t)(locale - o.locale);
1575 if (diff != 0) return diff;
1576 diff = (int32_t)(screenType - o.screenType);
1577 if (diff != 0) return diff;
1578 diff = (int32_t)(input - o.input);
1579 if (diff != 0) return diff;
1580 diff = (int32_t)(screenSize - o.screenSize);
1581 if (diff != 0) return diff;
1582 diff = (int32_t)(version - o.version);
1583 if (diff != 0) return diff;
1584 diff = (int32_t)(screenLayout - o.screenLayout);
1585 if (diff != 0) return diff;
1586 diff = (int32_t)(uiMode - o.uiMode);
1587 if (diff != 0) return diff;
1588 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1589 if (diff != 0) return diff;
1590 diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1591 return (int)diff;
1592 }
1593
compareLogical(const ResTable_config & o) const1594 int ResTable_config::compareLogical(const ResTable_config& o) const {
1595 if (mcc != o.mcc) {
1596 return mcc < o.mcc ? -1 : 1;
1597 }
1598 if (mnc != o.mnc) {
1599 return mnc < o.mnc ? -1 : 1;
1600 }
1601 if (language[0] != o.language[0]) {
1602 return language[0] < o.language[0] ? -1 : 1;
1603 }
1604 if (language[1] != o.language[1]) {
1605 return language[1] < o.language[1] ? -1 : 1;
1606 }
1607 if (country[0] != o.country[0]) {
1608 return country[0] < o.country[0] ? -1 : 1;
1609 }
1610 if (country[1] != o.country[1]) {
1611 return country[1] < o.country[1] ? -1 : 1;
1612 }
1613 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1614 return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1615 }
1616 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1617 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1618 }
1619 if (screenWidthDp != o.screenWidthDp) {
1620 return screenWidthDp < o.screenWidthDp ? -1 : 1;
1621 }
1622 if (screenHeightDp != o.screenHeightDp) {
1623 return screenHeightDp < o.screenHeightDp ? -1 : 1;
1624 }
1625 if (screenWidth != o.screenWidth) {
1626 return screenWidth < o.screenWidth ? -1 : 1;
1627 }
1628 if (screenHeight != o.screenHeight) {
1629 return screenHeight < o.screenHeight ? -1 : 1;
1630 }
1631 if (density != o.density) {
1632 return density < o.density ? -1 : 1;
1633 }
1634 if (orientation != o.orientation) {
1635 return orientation < o.orientation ? -1 : 1;
1636 }
1637 if (touchscreen != o.touchscreen) {
1638 return touchscreen < o.touchscreen ? -1 : 1;
1639 }
1640 if (input != o.input) {
1641 return input < o.input ? -1 : 1;
1642 }
1643 if (screenLayout != o.screenLayout) {
1644 return screenLayout < o.screenLayout ? -1 : 1;
1645 }
1646 if (uiMode != o.uiMode) {
1647 return uiMode < o.uiMode ? -1 : 1;
1648 }
1649 if (version != o.version) {
1650 return version < o.version ? -1 : 1;
1651 }
1652 return 0;
1653 }
1654
diff(const ResTable_config & o) const1655 int ResTable_config::diff(const ResTable_config& o) const {
1656 int diffs = 0;
1657 if (mcc != o.mcc) diffs |= CONFIG_MCC;
1658 if (mnc != o.mnc) diffs |= CONFIG_MNC;
1659 if (locale != o.locale) diffs |= CONFIG_LOCALE;
1660 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1661 if (density != o.density) diffs |= CONFIG_DENSITY;
1662 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1663 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1664 diffs |= CONFIG_KEYBOARD_HIDDEN;
1665 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1666 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1667 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1668 if (version != o.version) diffs |= CONFIG_VERSION;
1669 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1670 if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1671 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1672 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1673 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1674 return diffs;
1675 }
1676
isMoreSpecificThan(const ResTable_config & o) const1677 bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1678 // The order of the following tests defines the importance of one
1679 // configuration parameter over another. Those tests first are more
1680 // important, trumping any values in those following them.
1681 if (imsi || o.imsi) {
1682 if (mcc != o.mcc) {
1683 if (!mcc) return false;
1684 if (!o.mcc) return true;
1685 }
1686
1687 if (mnc != o.mnc) {
1688 if (!mnc) return false;
1689 if (!o.mnc) return true;
1690 }
1691 }
1692
1693 if (locale || o.locale) {
1694 if (language[0] != o.language[0]) {
1695 if (!language[0]) return false;
1696 if (!o.language[0]) return true;
1697 }
1698
1699 if (country[0] != o.country[0]) {
1700 if (!country[0]) return false;
1701 if (!o.country[0]) return true;
1702 }
1703 }
1704
1705 if (screenLayout || o.screenLayout) {
1706 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1707 if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1708 if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1709 }
1710 }
1711
1712 if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1713 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1714 if (!smallestScreenWidthDp) return false;
1715 if (!o.smallestScreenWidthDp) return true;
1716 }
1717 }
1718
1719 if (screenSizeDp || o.screenSizeDp) {
1720 if (screenWidthDp != o.screenWidthDp) {
1721 if (!screenWidthDp) return false;
1722 if (!o.screenWidthDp) return true;
1723 }
1724
1725 if (screenHeightDp != o.screenHeightDp) {
1726 if (!screenHeightDp) return false;
1727 if (!o.screenHeightDp) return true;
1728 }
1729 }
1730
1731 if (screenLayout || o.screenLayout) {
1732 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1733 if (!(screenLayout & MASK_SCREENSIZE)) return false;
1734 if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1735 }
1736 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1737 if (!(screenLayout & MASK_SCREENLONG)) return false;
1738 if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1739 }
1740 }
1741
1742 if (orientation != o.orientation) {
1743 if (!orientation) return false;
1744 if (!o.orientation) return true;
1745 }
1746
1747 if (uiMode || o.uiMode) {
1748 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
1749 if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
1750 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
1751 }
1752 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
1753 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
1754 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
1755 }
1756 }
1757
1758 // density is never 'more specific'
1759 // as the default just equals 160
1760
1761 if (touchscreen != o.touchscreen) {
1762 if (!touchscreen) return false;
1763 if (!o.touchscreen) return true;
1764 }
1765
1766 if (input || o.input) {
1767 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
1768 if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
1769 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
1770 }
1771
1772 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
1773 if (!(inputFlags & MASK_NAVHIDDEN)) return false;
1774 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
1775 }
1776
1777 if (keyboard != o.keyboard) {
1778 if (!keyboard) return false;
1779 if (!o.keyboard) return true;
1780 }
1781
1782 if (navigation != o.navigation) {
1783 if (!navigation) return false;
1784 if (!o.navigation) return true;
1785 }
1786 }
1787
1788 if (screenSize || o.screenSize) {
1789 if (screenWidth != o.screenWidth) {
1790 if (!screenWidth) return false;
1791 if (!o.screenWidth) return true;
1792 }
1793
1794 if (screenHeight != o.screenHeight) {
1795 if (!screenHeight) return false;
1796 if (!o.screenHeight) return true;
1797 }
1798 }
1799
1800 if (version || o.version) {
1801 if (sdkVersion != o.sdkVersion) {
1802 if (!sdkVersion) return false;
1803 if (!o.sdkVersion) return true;
1804 }
1805
1806 if (minorVersion != o.minorVersion) {
1807 if (!minorVersion) return false;
1808 if (!o.minorVersion) return true;
1809 }
1810 }
1811 return false;
1812 }
1813
isBetterThan(const ResTable_config & o,const ResTable_config * requested) const1814 bool ResTable_config::isBetterThan(const ResTable_config& o,
1815 const ResTable_config* requested) const {
1816 if (requested) {
1817 if (imsi || o.imsi) {
1818 if ((mcc != o.mcc) && requested->mcc) {
1819 return (mcc);
1820 }
1821
1822 if ((mnc != o.mnc) && requested->mnc) {
1823 return (mnc);
1824 }
1825 }
1826
1827 if (locale || o.locale) {
1828 if ((language[0] != o.language[0]) && requested->language[0]) {
1829 return (language[0]);
1830 }
1831
1832 if ((country[0] != o.country[0]) && requested->country[0]) {
1833 return (country[0]);
1834 }
1835 }
1836
1837 if (screenLayout || o.screenLayout) {
1838 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
1839 && (requested->screenLayout & MASK_LAYOUTDIR)) {
1840 int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
1841 int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
1842 return (myLayoutDir > oLayoutDir);
1843 }
1844 }
1845
1846 if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1847 // The configuration closest to the actual size is best.
1848 // We assume that larger configs have already been filtered
1849 // out at this point. That means we just want the largest one.
1850 if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1851 return smallestScreenWidthDp > o.smallestScreenWidthDp;
1852 }
1853 }
1854
1855 if (screenSizeDp || o.screenSizeDp) {
1856 // "Better" is based on the sum of the difference between both
1857 // width and height from the requested dimensions. We are
1858 // assuming the invalid configs (with smaller dimens) have
1859 // already been filtered. Note that if a particular dimension
1860 // is unspecified, we will end up with a large value (the
1861 // difference between 0 and the requested dimension), which is
1862 // good since we will prefer a config that has specified a
1863 // dimension value.
1864 int myDelta = 0, otherDelta = 0;
1865 if (requested->screenWidthDp) {
1866 myDelta += requested->screenWidthDp - screenWidthDp;
1867 otherDelta += requested->screenWidthDp - o.screenWidthDp;
1868 }
1869 if (requested->screenHeightDp) {
1870 myDelta += requested->screenHeightDp - screenHeightDp;
1871 otherDelta += requested->screenHeightDp - o.screenHeightDp;
1872 }
1873 //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
1874 // screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
1875 // requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
1876 if (myDelta != otherDelta) {
1877 return myDelta < otherDelta;
1878 }
1879 }
1880
1881 if (screenLayout || o.screenLayout) {
1882 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
1883 && (requested->screenLayout & MASK_SCREENSIZE)) {
1884 // A little backwards compatibility here: undefined is
1885 // considered equivalent to normal. But only if the
1886 // requested size is at least normal; otherwise, small
1887 // is better than the default.
1888 int mySL = (screenLayout & MASK_SCREENSIZE);
1889 int oSL = (o.screenLayout & MASK_SCREENSIZE);
1890 int fixedMySL = mySL;
1891 int fixedOSL = oSL;
1892 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
1893 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
1894 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
1895 }
1896 // For screen size, the best match is the one that is
1897 // closest to the requested screen size, but not over
1898 // (the not over part is dealt with in match() below).
1899 if (fixedMySL == fixedOSL) {
1900 // If the two are the same, but 'this' is actually
1901 // undefined, then the other is really a better match.
1902 if (mySL == 0) return false;
1903 return true;
1904 }
1905 if (fixedMySL != fixedOSL) {
1906 return fixedMySL > fixedOSL;
1907 }
1908 }
1909 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
1910 && (requested->screenLayout & MASK_SCREENLONG)) {
1911 return (screenLayout & MASK_SCREENLONG);
1912 }
1913 }
1914
1915 if ((orientation != o.orientation) && requested->orientation) {
1916 return (orientation);
1917 }
1918
1919 if (uiMode || o.uiMode) {
1920 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
1921 && (requested->uiMode & MASK_UI_MODE_TYPE)) {
1922 return (uiMode & MASK_UI_MODE_TYPE);
1923 }
1924 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
1925 && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
1926 return (uiMode & MASK_UI_MODE_NIGHT);
1927 }
1928 }
1929
1930 if (screenType || o.screenType) {
1931 if (density != o.density) {
1932 // density is tough. Any density is potentially useful
1933 // because the system will scale it. Scaling down
1934 // is generally better than scaling up.
1935 // Default density counts as 160dpi (the system default)
1936 // TODO - remove 160 constants
1937 int h = (density?density:160);
1938 int l = (o.density?o.density:160);
1939 bool bImBigger = true;
1940 if (l > h) {
1941 int t = h;
1942 h = l;
1943 l = t;
1944 bImBigger = false;
1945 }
1946
1947 int reqValue = (requested->density?requested->density:160);
1948 if (reqValue >= h) {
1949 // requested value higher than both l and h, give h
1950 return bImBigger;
1951 }
1952 if (l >= reqValue) {
1953 // requested value lower than both l and h, give l
1954 return !bImBigger;
1955 }
1956 // saying that scaling down is 2x better than up
1957 if (((2 * l) - reqValue) * h > reqValue * reqValue) {
1958 return !bImBigger;
1959 } else {
1960 return bImBigger;
1961 }
1962 }
1963
1964 if ((touchscreen != o.touchscreen) && requested->touchscreen) {
1965 return (touchscreen);
1966 }
1967 }
1968
1969 if (input || o.input) {
1970 const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
1971 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
1972 if (keysHidden != oKeysHidden) {
1973 const int reqKeysHidden =
1974 requested->inputFlags & MASK_KEYSHIDDEN;
1975 if (reqKeysHidden) {
1976
1977 if (!keysHidden) return false;
1978 if (!oKeysHidden) return true;
1979 // For compatibility, we count KEYSHIDDEN_NO as being
1980 // the same as KEYSHIDDEN_SOFT. Here we disambiguate
1981 // these by making an exact match more specific.
1982 if (reqKeysHidden == keysHidden) return true;
1983 if (reqKeysHidden == oKeysHidden) return false;
1984 }
1985 }
1986
1987 const int navHidden = inputFlags & MASK_NAVHIDDEN;
1988 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
1989 if (navHidden != oNavHidden) {
1990 const int reqNavHidden =
1991 requested->inputFlags & MASK_NAVHIDDEN;
1992 if (reqNavHidden) {
1993
1994 if (!navHidden) return false;
1995 if (!oNavHidden) return true;
1996 }
1997 }
1998
1999 if ((keyboard != o.keyboard) && requested->keyboard) {
2000 return (keyboard);
2001 }
2002
2003 if ((navigation != o.navigation) && requested->navigation) {
2004 return (navigation);
2005 }
2006 }
2007
2008 if (screenSize || o.screenSize) {
2009 // "Better" is based on the sum of the difference between both
2010 // width and height from the requested dimensions. We are
2011 // assuming the invalid configs (with smaller sizes) have
2012 // already been filtered. Note that if a particular dimension
2013 // is unspecified, we will end up with a large value (the
2014 // difference between 0 and the requested dimension), which is
2015 // good since we will prefer a config that has specified a
2016 // size value.
2017 int myDelta = 0, otherDelta = 0;
2018 if (requested->screenWidth) {
2019 myDelta += requested->screenWidth - screenWidth;
2020 otherDelta += requested->screenWidth - o.screenWidth;
2021 }
2022 if (requested->screenHeight) {
2023 myDelta += requested->screenHeight - screenHeight;
2024 otherDelta += requested->screenHeight - o.screenHeight;
2025 }
2026 if (myDelta != otherDelta) {
2027 return myDelta < otherDelta;
2028 }
2029 }
2030
2031 if (version || o.version) {
2032 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
2033 return (sdkVersion > o.sdkVersion);
2034 }
2035
2036 if ((minorVersion != o.minorVersion) &&
2037 requested->minorVersion) {
2038 return (minorVersion);
2039 }
2040 }
2041
2042 return false;
2043 }
2044 return isMoreSpecificThan(o);
2045 }
2046
match(const ResTable_config & settings) const2047 bool ResTable_config::match(const ResTable_config& settings) const {
2048 if (imsi != 0) {
2049 if (mcc != 0 && mcc != settings.mcc) {
2050 return false;
2051 }
2052 if (mnc != 0 && mnc != settings.mnc) {
2053 return false;
2054 }
2055 }
2056 if (locale != 0) {
2057 if (language[0] != 0
2058 && (language[0] != settings.language[0]
2059 || language[1] != settings.language[1])) {
2060 return false;
2061 }
2062 if (country[0] != 0
2063 && (country[0] != settings.country[0]
2064 || country[1] != settings.country[1])) {
2065 return false;
2066 }
2067 }
2068 if (screenConfig != 0) {
2069 const int layoutDir = screenLayout&MASK_LAYOUTDIR;
2070 const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
2071 if (layoutDir != 0 && layoutDir != setLayoutDir) {
2072 return false;
2073 }
2074
2075 const int screenSize = screenLayout&MASK_SCREENSIZE;
2076 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
2077 // Any screen sizes for larger screens than the setting do not
2078 // match.
2079 if (screenSize != 0 && screenSize > setScreenSize) {
2080 return false;
2081 }
2082
2083 const int screenLong = screenLayout&MASK_SCREENLONG;
2084 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
2085 if (screenLong != 0 && screenLong != setScreenLong) {
2086 return false;
2087 }
2088
2089 const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
2090 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
2091 if (uiModeType != 0 && uiModeType != setUiModeType) {
2092 return false;
2093 }
2094
2095 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
2096 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
2097 if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
2098 return false;
2099 }
2100
2101 if (smallestScreenWidthDp != 0
2102 && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
2103 return false;
2104 }
2105 }
2106 if (screenSizeDp != 0) {
2107 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
2108 //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
2109 return false;
2110 }
2111 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
2112 //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
2113 return false;
2114 }
2115 }
2116 if (screenType != 0) {
2117 if (orientation != 0 && orientation != settings.orientation) {
2118 return false;
2119 }
2120 // density always matches - we can scale it. See isBetterThan
2121 if (touchscreen != 0 && touchscreen != settings.touchscreen) {
2122 return false;
2123 }
2124 }
2125 if (input != 0) {
2126 const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
2127 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
2128 if (keysHidden != 0 && keysHidden != setKeysHidden) {
2129 // For compatibility, we count a request for KEYSHIDDEN_NO as also
2130 // matching the more recent KEYSHIDDEN_SOFT. Basically
2131 // KEYSHIDDEN_NO means there is some kind of keyboard available.
2132 //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
2133 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
2134 //ALOGI("No match!");
2135 return false;
2136 }
2137 }
2138 const int navHidden = inputFlags&MASK_NAVHIDDEN;
2139 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2140 if (navHidden != 0 && navHidden != setNavHidden) {
2141 return false;
2142 }
2143 if (keyboard != 0 && keyboard != settings.keyboard) {
2144 return false;
2145 }
2146 if (navigation != 0 && navigation != settings.navigation) {
2147 return false;
2148 }
2149 }
2150 if (screenSize != 0) {
2151 if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2152 return false;
2153 }
2154 if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2155 return false;
2156 }
2157 }
2158 if (version != 0) {
2159 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2160 return false;
2161 }
2162 if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2163 return false;
2164 }
2165 }
2166 return true;
2167 }
2168
getLocale(char str[6]) const2169 void ResTable_config::getLocale(char str[6]) const {
2170 memset(str, 0, 6);
2171 if (language[0]) {
2172 str[0] = language[0];
2173 str[1] = language[1];
2174 if (country[0]) {
2175 str[2] = '_';
2176 str[3] = country[0];
2177 str[4] = country[1];
2178 }
2179 }
2180 }
2181
toString() const2182 String8 ResTable_config::toString() const {
2183 String8 res;
2184
2185 if (mcc != 0) {
2186 if (res.size() > 0) res.append("-");
2187 res.appendFormat("%dmcc", dtohs(mcc));
2188 }
2189 if (mnc != 0) {
2190 if (res.size() > 0) res.append("-");
2191 res.appendFormat("%dmnc", dtohs(mnc));
2192 }
2193 if (language[0] != 0) {
2194 if (res.size() > 0) res.append("-");
2195 res.append(language, 2);
2196 }
2197 if (country[0] != 0) {
2198 if (res.size() > 0) res.append("-");
2199 res.append(country, 2);
2200 }
2201 if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2202 if (res.size() > 0) res.append("-");
2203 switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2204 case ResTable_config::LAYOUTDIR_LTR:
2205 res.append("ldltr");
2206 break;
2207 case ResTable_config::LAYOUTDIR_RTL:
2208 res.append("ldrtl");
2209 break;
2210 default:
2211 res.appendFormat("layoutDir=%d",
2212 dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2213 break;
2214 }
2215 }
2216 if (smallestScreenWidthDp != 0) {
2217 if (res.size() > 0) res.append("-");
2218 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2219 }
2220 if (screenWidthDp != 0) {
2221 if (res.size() > 0) res.append("-");
2222 res.appendFormat("w%ddp", dtohs(screenWidthDp));
2223 }
2224 if (screenHeightDp != 0) {
2225 if (res.size() > 0) res.append("-");
2226 res.appendFormat("h%ddp", dtohs(screenHeightDp));
2227 }
2228 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2229 if (res.size() > 0) res.append("-");
2230 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2231 case ResTable_config::SCREENSIZE_SMALL:
2232 res.append("small");
2233 break;
2234 case ResTable_config::SCREENSIZE_NORMAL:
2235 res.append("normal");
2236 break;
2237 case ResTable_config::SCREENSIZE_LARGE:
2238 res.append("large");
2239 break;
2240 case ResTable_config::SCREENSIZE_XLARGE:
2241 res.append("xlarge");
2242 break;
2243 default:
2244 res.appendFormat("screenLayoutSize=%d",
2245 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2246 break;
2247 }
2248 }
2249 if ((screenLayout&MASK_SCREENLONG) != 0) {
2250 if (res.size() > 0) res.append("-");
2251 switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2252 case ResTable_config::SCREENLONG_NO:
2253 res.append("notlong");
2254 break;
2255 case ResTable_config::SCREENLONG_YES:
2256 res.append("long");
2257 break;
2258 default:
2259 res.appendFormat("screenLayoutLong=%d",
2260 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2261 break;
2262 }
2263 }
2264 if (orientation != ORIENTATION_ANY) {
2265 if (res.size() > 0) res.append("-");
2266 switch (orientation) {
2267 case ResTable_config::ORIENTATION_PORT:
2268 res.append("port");
2269 break;
2270 case ResTable_config::ORIENTATION_LAND:
2271 res.append("land");
2272 break;
2273 case ResTable_config::ORIENTATION_SQUARE:
2274 res.append("square");
2275 break;
2276 default:
2277 res.appendFormat("orientation=%d", dtohs(orientation));
2278 break;
2279 }
2280 }
2281 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2282 if (res.size() > 0) res.append("-");
2283 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2284 case ResTable_config::UI_MODE_TYPE_DESK:
2285 res.append("desk");
2286 break;
2287 case ResTable_config::UI_MODE_TYPE_CAR:
2288 res.append("car");
2289 break;
2290 case ResTable_config::UI_MODE_TYPE_TELEVISION:
2291 res.append("television");
2292 break;
2293 case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2294 res.append("appliance");
2295 break;
2296 default:
2297 res.appendFormat("uiModeType=%d",
2298 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2299 break;
2300 }
2301 }
2302 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2303 if (res.size() > 0) res.append("-");
2304 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2305 case ResTable_config::UI_MODE_NIGHT_NO:
2306 res.append("notnight");
2307 break;
2308 case ResTable_config::UI_MODE_NIGHT_YES:
2309 res.append("night");
2310 break;
2311 default:
2312 res.appendFormat("uiModeNight=%d",
2313 dtohs(uiMode&MASK_UI_MODE_NIGHT));
2314 break;
2315 }
2316 }
2317 if (density != DENSITY_DEFAULT) {
2318 if (res.size() > 0) res.append("-");
2319 switch (density) {
2320 case ResTable_config::DENSITY_LOW:
2321 res.append("ldpi");
2322 break;
2323 case ResTable_config::DENSITY_MEDIUM:
2324 res.append("mdpi");
2325 break;
2326 case ResTable_config::DENSITY_TV:
2327 res.append("tvdpi");
2328 break;
2329 case ResTable_config::DENSITY_HIGH:
2330 res.append("hdpi");
2331 break;
2332 case ResTable_config::DENSITY_XHIGH:
2333 res.append("xhdpi");
2334 break;
2335 case ResTable_config::DENSITY_XXHIGH:
2336 res.append("xxhdpi");
2337 break;
2338 case ResTable_config::DENSITY_NONE:
2339 res.append("nodpi");
2340 break;
2341 default:
2342 res.appendFormat("%ddpi", dtohs(density));
2343 break;
2344 }
2345 }
2346 if (touchscreen != TOUCHSCREEN_ANY) {
2347 if (res.size() > 0) res.append("-");
2348 switch (touchscreen) {
2349 case ResTable_config::TOUCHSCREEN_NOTOUCH:
2350 res.append("notouch");
2351 break;
2352 case ResTable_config::TOUCHSCREEN_FINGER:
2353 res.append("finger");
2354 break;
2355 case ResTable_config::TOUCHSCREEN_STYLUS:
2356 res.append("stylus");
2357 break;
2358 default:
2359 res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2360 break;
2361 }
2362 }
2363 if (keyboard != KEYBOARD_ANY) {
2364 if (res.size() > 0) res.append("-");
2365 switch (keyboard) {
2366 case ResTable_config::KEYBOARD_NOKEYS:
2367 res.append("nokeys");
2368 break;
2369 case ResTable_config::KEYBOARD_QWERTY:
2370 res.append("qwerty");
2371 break;
2372 case ResTable_config::KEYBOARD_12KEY:
2373 res.append("12key");
2374 break;
2375 default:
2376 res.appendFormat("keyboard=%d", dtohs(keyboard));
2377 break;
2378 }
2379 }
2380 if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2381 if (res.size() > 0) res.append("-");
2382 switch (inputFlags&MASK_KEYSHIDDEN) {
2383 case ResTable_config::KEYSHIDDEN_NO:
2384 res.append("keysexposed");
2385 break;
2386 case ResTable_config::KEYSHIDDEN_YES:
2387 res.append("keyshidden");
2388 break;
2389 case ResTable_config::KEYSHIDDEN_SOFT:
2390 res.append("keyssoft");
2391 break;
2392 }
2393 }
2394 if (navigation != NAVIGATION_ANY) {
2395 if (res.size() > 0) res.append("-");
2396 switch (navigation) {
2397 case ResTable_config::NAVIGATION_NONAV:
2398 res.append("nonav");
2399 break;
2400 case ResTable_config::NAVIGATION_DPAD:
2401 res.append("dpad");
2402 break;
2403 case ResTable_config::NAVIGATION_TRACKBALL:
2404 res.append("trackball");
2405 break;
2406 case ResTable_config::NAVIGATION_WHEEL:
2407 res.append("wheel");
2408 break;
2409 default:
2410 res.appendFormat("navigation=%d", dtohs(navigation));
2411 break;
2412 }
2413 }
2414 if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2415 if (res.size() > 0) res.append("-");
2416 switch (inputFlags&MASK_NAVHIDDEN) {
2417 case ResTable_config::NAVHIDDEN_NO:
2418 res.append("navsexposed");
2419 break;
2420 case ResTable_config::NAVHIDDEN_YES:
2421 res.append("navhidden");
2422 break;
2423 default:
2424 res.appendFormat("inputFlagsNavHidden=%d",
2425 dtohs(inputFlags&MASK_NAVHIDDEN));
2426 break;
2427 }
2428 }
2429 if (screenSize != 0) {
2430 if (res.size() > 0) res.append("-");
2431 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2432 }
2433 if (version != 0) {
2434 if (res.size() > 0) res.append("-");
2435 res.appendFormat("v%d", dtohs(sdkVersion));
2436 if (minorVersion != 0) {
2437 res.appendFormat(".%d", dtohs(minorVersion));
2438 }
2439 }
2440
2441 return res;
2442 }
2443
2444 // --------------------------------------------------------------------
2445 // --------------------------------------------------------------------
2446 // --------------------------------------------------------------------
2447
2448 struct ResTable::Header
2449 {
Headerandroid::ResTable::Header2450 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2451 resourceIDMap(NULL), resourceIDMapSize(0) { }
2452
~Headerandroid::ResTable::Header2453 ~Header()
2454 {
2455 free(resourceIDMap);
2456 }
2457
2458 ResTable* const owner;
2459 void* ownedData;
2460 const ResTable_header* header;
2461 size_t size;
2462 const uint8_t* dataEnd;
2463 size_t index;
2464 void* cookie;
2465
2466 ResStringPool values;
2467 uint32_t* resourceIDMap;
2468 size_t resourceIDMapSize;
2469 };
2470
2471 struct ResTable::Type
2472 {
Typeandroid::ResTable::Type2473 Type(const Header* _header, const Package* _package, size_t count)
2474 : header(_header), package(_package), entryCount(count),
2475 typeSpec(NULL), typeSpecFlags(NULL) { }
2476 const Header* const header;
2477 const Package* const package;
2478 const size_t entryCount;
2479 const ResTable_typeSpec* typeSpec;
2480 const uint32_t* typeSpecFlags;
2481 Vector<const ResTable_type*> configs;
2482 };
2483
2484 struct ResTable::Package
2485 {
Packageandroid::ResTable::Package2486 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2487 : owner(_owner), header(_header), package(_package) { }
~Packageandroid::ResTable::Package2488 ~Package()
2489 {
2490 size_t i = types.size();
2491 while (i > 0) {
2492 i--;
2493 delete types[i];
2494 }
2495 }
2496
2497 ResTable* const owner;
2498 const Header* const header;
2499 const ResTable_package* const package;
2500 Vector<Type*> types;
2501
2502 ResStringPool typeStrings;
2503 ResStringPool keyStrings;
2504
getTypeandroid::ResTable::Package2505 const Type* getType(size_t idx) const {
2506 return idx < types.size() ? types[idx] : NULL;
2507 }
2508 };
2509
2510 // A group of objects describing a particular resource package.
2511 // The first in 'package' is always the root object (from the resource
2512 // table that defined the package); the ones after are skins on top of it.
2513 struct ResTable::PackageGroup
2514 {
PackageGroupandroid::ResTable::PackageGroup2515 PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2516 : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { }
~PackageGroupandroid::ResTable::PackageGroup2517 ~PackageGroup() {
2518 clearBagCache();
2519 const size_t N = packages.size();
2520 for (size_t i=0; i<N; i++) {
2521 Package* pkg = packages[i];
2522 if (pkg->owner == owner) {
2523 delete pkg;
2524 }
2525 }
2526 }
2527
clearBagCacheandroid::ResTable::PackageGroup2528 void clearBagCache() {
2529 if (bags) {
2530 TABLE_NOISY(printf("bags=%p\n", bags));
2531 Package* pkg = packages[0];
2532 TABLE_NOISY(printf("typeCount=%x\n", typeCount));
2533 for (size_t i=0; i<typeCount; i++) {
2534 TABLE_NOISY(printf("type=%d\n", i));
2535 const Type* type = pkg->getType(i);
2536 if (type != NULL) {
2537 bag_set** typeBags = bags[i];
2538 TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2539 if (typeBags) {
2540 TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
2541 const size_t N = type->entryCount;
2542 for (size_t j=0; j<N; j++) {
2543 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2544 free(typeBags[j]);
2545 }
2546 free(typeBags);
2547 }
2548 }
2549 }
2550 free(bags);
2551 bags = NULL;
2552 }
2553 }
2554
2555 ResTable* const owner;
2556 String16 const name;
2557 uint32_t const id;
2558 Vector<Package*> packages;
2559
2560 // This is for finding typeStrings and other common package stuff.
2561 Package* basePackage;
2562
2563 // For quick access.
2564 size_t typeCount;
2565
2566 // Computed attribute bags, first indexed by the type and second
2567 // by the entry in that type.
2568 bag_set*** bags;
2569 };
2570
2571 struct ResTable::bag_set
2572 {
2573 size_t numAttrs; // number in array
2574 size_t availAttrs; // total space in array
2575 uint32_t typeSpecFlags;
2576 // Followed by 'numAttr' bag_entry structures.
2577 };
2578
Theme(const ResTable & table)2579 ResTable::Theme::Theme(const ResTable& table)
2580 : mTable(table)
2581 {
2582 memset(mPackages, 0, sizeof(mPackages));
2583 }
2584
~Theme()2585 ResTable::Theme::~Theme()
2586 {
2587 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2588 package_info* pi = mPackages[i];
2589 if (pi != NULL) {
2590 free_package(pi);
2591 }
2592 }
2593 }
2594
free_package(package_info * pi)2595 void ResTable::Theme::free_package(package_info* pi)
2596 {
2597 for (size_t j=0; j<pi->numTypes; j++) {
2598 theme_entry* te = pi->types[j].entries;
2599 if (te != NULL) {
2600 free(te);
2601 }
2602 }
2603 free(pi);
2604 }
2605
copy_package(package_info * pi)2606 ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
2607 {
2608 package_info* newpi = (package_info*)malloc(
2609 sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
2610 newpi->numTypes = pi->numTypes;
2611 for (size_t j=0; j<newpi->numTypes; j++) {
2612 size_t cnt = pi->types[j].numEntries;
2613 newpi->types[j].numEntries = cnt;
2614 theme_entry* te = pi->types[j].entries;
2615 if (te != NULL) {
2616 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2617 newpi->types[j].entries = newte;
2618 memcpy(newte, te, cnt*sizeof(theme_entry));
2619 } else {
2620 newpi->types[j].entries = NULL;
2621 }
2622 }
2623 return newpi;
2624 }
2625
applyStyle(uint32_t resID,bool force)2626 status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
2627 {
2628 const bag_entry* bag;
2629 uint32_t bagTypeSpecFlags = 0;
2630 mTable.lock();
2631 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
2632 TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
2633 if (N < 0) {
2634 mTable.unlock();
2635 return N;
2636 }
2637
2638 uint32_t curPackage = 0xffffffff;
2639 ssize_t curPackageIndex = 0;
2640 package_info* curPI = NULL;
2641 uint32_t curType = 0xffffffff;
2642 size_t numEntries = 0;
2643 theme_entry* curEntries = NULL;
2644
2645 const bag_entry* end = bag + N;
2646 while (bag < end) {
2647 const uint32_t attrRes = bag->map.name.ident;
2648 const uint32_t p = Res_GETPACKAGE(attrRes);
2649 const uint32_t t = Res_GETTYPE(attrRes);
2650 const uint32_t e = Res_GETENTRY(attrRes);
2651
2652 if (curPackage != p) {
2653 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
2654 if (pidx < 0) {
2655 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
2656 bag++;
2657 continue;
2658 }
2659 curPackage = p;
2660 curPackageIndex = pidx;
2661 curPI = mPackages[pidx];
2662 if (curPI == NULL) {
2663 PackageGroup* const grp = mTable.mPackageGroups[pidx];
2664 int cnt = grp->typeCount;
2665 curPI = (package_info*)malloc(
2666 sizeof(package_info) + (cnt*sizeof(type_info)));
2667 curPI->numTypes = cnt;
2668 memset(curPI->types, 0, cnt*sizeof(type_info));
2669 mPackages[pidx] = curPI;
2670 }
2671 curType = 0xffffffff;
2672 }
2673 if (curType != t) {
2674 if (t >= curPI->numTypes) {
2675 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
2676 bag++;
2677 continue;
2678 }
2679 curType = t;
2680 curEntries = curPI->types[t].entries;
2681 if (curEntries == NULL) {
2682 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
2683 const Type* type = grp->packages[0]->getType(t);
2684 int cnt = type != NULL ? type->entryCount : 0;
2685 curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2686 memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
2687 curPI->types[t].numEntries = cnt;
2688 curPI->types[t].entries = curEntries;
2689 }
2690 numEntries = curPI->types[t].numEntries;
2691 }
2692 if (e >= numEntries) {
2693 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
2694 bag++;
2695 continue;
2696 }
2697 theme_entry* curEntry = curEntries + e;
2698 TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
2699 attrRes, bag->map.value.dataType, bag->map.value.data,
2700 curEntry->value.dataType));
2701 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
2702 curEntry->stringBlock = bag->stringBlock;
2703 curEntry->typeSpecFlags |= bagTypeSpecFlags;
2704 curEntry->value = bag->map.value;
2705 }
2706
2707 bag++;
2708 }
2709
2710 mTable.unlock();
2711
2712 //ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this);
2713 //dumpToLog();
2714
2715 return NO_ERROR;
2716 }
2717
setTo(const Theme & other)2718 status_t ResTable::Theme::setTo(const Theme& other)
2719 {
2720 //ALOGI("Setting theme %p from theme %p...\n", this, &other);
2721 //dumpToLog();
2722 //other.dumpToLog();
2723
2724 if (&mTable == &other.mTable) {
2725 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2726 if (mPackages[i] != NULL) {
2727 free_package(mPackages[i]);
2728 }
2729 if (other.mPackages[i] != NULL) {
2730 mPackages[i] = copy_package(other.mPackages[i]);
2731 } else {
2732 mPackages[i] = NULL;
2733 }
2734 }
2735 } else {
2736 // @todo: need to really implement this, not just copy
2737 // the system package (which is still wrong because it isn't
2738 // fixing up resource references).
2739 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2740 if (mPackages[i] != NULL) {
2741 free_package(mPackages[i]);
2742 }
2743 if (i == 0 && other.mPackages[i] != NULL) {
2744 mPackages[i] = copy_package(other.mPackages[i]);
2745 } else {
2746 mPackages[i] = NULL;
2747 }
2748 }
2749 }
2750
2751 //ALOGI("Final theme:");
2752 //dumpToLog();
2753
2754 return NO_ERROR;
2755 }
2756
getAttribute(uint32_t resID,Res_value * outValue,uint32_t * outTypeSpecFlags) const2757 ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
2758 uint32_t* outTypeSpecFlags) const
2759 {
2760 int cnt = 20;
2761
2762 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
2763
2764 do {
2765 const ssize_t p = mTable.getResourcePackageIndex(resID);
2766 const uint32_t t = Res_GETTYPE(resID);
2767 const uint32_t e = Res_GETENTRY(resID);
2768
2769 TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
2770
2771 if (p >= 0) {
2772 const package_info* const pi = mPackages[p];
2773 TABLE_THEME(ALOGI("Found package: %p", pi));
2774 if (pi != NULL) {
2775 TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes));
2776 if (t < pi->numTypes) {
2777 const type_info& ti = pi->types[t];
2778 TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
2779 if (e < ti.numEntries) {
2780 const theme_entry& te = ti.entries[e];
2781 if (outTypeSpecFlags != NULL) {
2782 *outTypeSpecFlags |= te.typeSpecFlags;
2783 }
2784 TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
2785 te.value.dataType, te.value.data));
2786 const uint8_t type = te.value.dataType;
2787 if (type == Res_value::TYPE_ATTRIBUTE) {
2788 if (cnt > 0) {
2789 cnt--;
2790 resID = te.value.data;
2791 continue;
2792 }
2793 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
2794 return BAD_INDEX;
2795 } else if (type != Res_value::TYPE_NULL) {
2796 *outValue = te.value;
2797 return te.stringBlock;
2798 }
2799 return BAD_INDEX;
2800 }
2801 }
2802 }
2803 }
2804 break;
2805
2806 } while (true);
2807
2808 return BAD_INDEX;
2809 }
2810
resolveAttributeReference(Res_value * inOutValue,ssize_t blockIndex,uint32_t * outLastRef,uint32_t * inoutTypeSpecFlags,ResTable_config * inoutConfig) const2811 ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
2812 ssize_t blockIndex, uint32_t* outLastRef,
2813 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
2814 {
2815 //printf("Resolving type=0x%x\n", inOutValue->dataType);
2816 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
2817 uint32_t newTypeSpecFlags;
2818 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
2819 TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
2820 (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
2821 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
2822 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
2823 if (blockIndex < 0) {
2824 return blockIndex;
2825 }
2826 }
2827 return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
2828 inoutTypeSpecFlags, inoutConfig);
2829 }
2830
dumpToLog() const2831 void ResTable::Theme::dumpToLog() const
2832 {
2833 ALOGI("Theme %p:\n", this);
2834 for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2835 package_info* pi = mPackages[i];
2836 if (pi == NULL) continue;
2837
2838 ALOGI(" Package #0x%02x:\n", (int)(i+1));
2839 for (size_t j=0; j<pi->numTypes; j++) {
2840 type_info& ti = pi->types[j];
2841 if (ti.numEntries == 0) continue;
2842
2843 ALOGI(" Type #0x%02x:\n", (int)(j+1));
2844 for (size_t k=0; k<ti.numEntries; k++) {
2845 theme_entry& te = ti.entries[k];
2846 if (te.value.dataType == Res_value::TYPE_NULL) continue;
2847 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
2848 (int)Res_MAKEID(i, j, k),
2849 te.value.dataType, (int)te.value.data, (int)te.stringBlock);
2850 }
2851 }
2852 }
2853 }
2854
ResTable()2855 ResTable::ResTable()
2856 : mError(NO_INIT)
2857 {
2858 memset(&mParams, 0, sizeof(mParams));
2859 memset(mPackageMap, 0, sizeof(mPackageMap));
2860 //ALOGI("Creating ResTable %p\n", this);
2861 }
2862
ResTable(const void * data,size_t size,void * cookie,bool copyData)2863 ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData)
2864 : mError(NO_INIT)
2865 {
2866 memset(&mParams, 0, sizeof(mParams));
2867 memset(mPackageMap, 0, sizeof(mPackageMap));
2868 add(data, size, cookie, copyData);
2869 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
2870 //ALOGI("Creating ResTable %p\n", this);
2871 }
2872
~ResTable()2873 ResTable::~ResTable()
2874 {
2875 //ALOGI("Destroying ResTable in %p\n", this);
2876 uninit();
2877 }
2878
getResourcePackageIndex(uint32_t resID) const2879 inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
2880 {
2881 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
2882 }
2883
add(const void * data,size_t size,void * cookie,bool copyData,const void * idmap)2884 status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData,
2885 const void* idmap)
2886 {
2887 return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap));
2888 }
2889
add(Asset * asset,void * cookie,bool copyData,const void * idmap)2890 status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap)
2891 {
2892 const void* data = asset->getBuffer(true);
2893 if (data == NULL) {
2894 ALOGW("Unable to get buffer of resource asset file");
2895 return UNKNOWN_ERROR;
2896 }
2897 size_t size = (size_t)asset->getLength();
2898 return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap));
2899 }
2900
add(ResTable * src)2901 status_t ResTable::add(ResTable* src)
2902 {
2903 mError = src->mError;
2904
2905 for (size_t i=0; i<src->mHeaders.size(); i++) {
2906 mHeaders.add(src->mHeaders[i]);
2907 }
2908
2909 for (size_t i=0; i<src->mPackageGroups.size(); i++) {
2910 PackageGroup* srcPg = src->mPackageGroups[i];
2911 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
2912 for (size_t j=0; j<srcPg->packages.size(); j++) {
2913 pg->packages.add(srcPg->packages[j]);
2914 }
2915 pg->basePackage = srcPg->basePackage;
2916 pg->typeCount = srcPg->typeCount;
2917 mPackageGroups.add(pg);
2918 }
2919
2920 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
2921
2922 return mError;
2923 }
2924
add(const void * data,size_t size,void * cookie,Asset * asset,bool copyData,const Asset * idmap)2925 status_t ResTable::add(const void* data, size_t size, void* cookie,
2926 Asset* asset, bool copyData, const Asset* idmap)
2927 {
2928 if (!data) return NO_ERROR;
2929 Header* header = new Header(this);
2930 header->index = mHeaders.size();
2931 header->cookie = cookie;
2932 if (idmap != NULL) {
2933 const size_t idmap_size = idmap->getLength();
2934 const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
2935 header->resourceIDMap = (uint32_t*)malloc(idmap_size);
2936 if (header->resourceIDMap == NULL) {
2937 delete header;
2938 return (mError = NO_MEMORY);
2939 }
2940 memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
2941 header->resourceIDMapSize = idmap_size;
2942 }
2943 mHeaders.add(header);
2944
2945 const bool notDeviceEndian = htods(0xf0) != 0xf0;
2946
2947 LOAD_TABLE_NOISY(
2948 ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d "
2949 "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
2950
2951 if (copyData || notDeviceEndian) {
2952 header->ownedData = malloc(size);
2953 if (header->ownedData == NULL) {
2954 return (mError=NO_MEMORY);
2955 }
2956 memcpy(header->ownedData, data, size);
2957 data = header->ownedData;
2958 }
2959
2960 header->header = (const ResTable_header*)data;
2961 header->size = dtohl(header->header->header.size);
2962 //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
2963 // dtohl(header->header->header.size), header->header->header.size);
2964 LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
2965 LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256,
2966 16, 16, 0, false, printToLogFunc));
2967 if (dtohs(header->header->header.headerSize) > header->size
2968 || header->size > size) {
2969 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
2970 (int)dtohs(header->header->header.headerSize),
2971 (int)header->size, (int)size);
2972 return (mError=BAD_TYPE);
2973 }
2974 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
2975 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
2976 (int)dtohs(header->header->header.headerSize),
2977 (int)header->size);
2978 return (mError=BAD_TYPE);
2979 }
2980 header->dataEnd = ((const uint8_t*)header->header) + header->size;
2981
2982 // Iterate through all chunks.
2983 size_t curPackage = 0;
2984
2985 const ResChunk_header* chunk =
2986 (const ResChunk_header*)(((const uint8_t*)header->header)
2987 + dtohs(header->header->header.headerSize));
2988 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
2989 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
2990 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
2991 if (err != NO_ERROR) {
2992 return (mError=err);
2993 }
2994 TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
2995 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
2996 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
2997 const size_t csize = dtohl(chunk->size);
2998 const uint16_t ctype = dtohs(chunk->type);
2999 if (ctype == RES_STRING_POOL_TYPE) {
3000 if (header->values.getError() != NO_ERROR) {
3001 // Only use the first string chunk; ignore any others that
3002 // may appear.
3003 status_t err = header->values.setTo(chunk, csize);
3004 if (err != NO_ERROR) {
3005 return (mError=err);
3006 }
3007 } else {
3008 ALOGW("Multiple string chunks found in resource table.");
3009 }
3010 } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3011 if (curPackage >= dtohl(header->header->packageCount)) {
3012 ALOGW("More package chunks were found than the %d declared in the header.",
3013 dtohl(header->header->packageCount));
3014 return (mError=BAD_TYPE);
3015 }
3016 uint32_t idmap_id = 0;
3017 if (idmap != NULL) {
3018 uint32_t tmp;
3019 if (getIdmapPackageId(header->resourceIDMap,
3020 header->resourceIDMapSize,
3021 &tmp) == NO_ERROR) {
3022 idmap_id = tmp;
3023 }
3024 }
3025 if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
3026 return mError;
3027 }
3028 curPackage++;
3029 } else {
3030 ALOGW("Unknown chunk type %p in table at %p.\n",
3031 (void*)(int)(ctype),
3032 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3033 }
3034 chunk = (const ResChunk_header*)
3035 (((const uint8_t*)chunk) + csize);
3036 }
3037
3038 if (curPackage < dtohl(header->header->packageCount)) {
3039 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3040 (int)curPackage, dtohl(header->header->packageCount));
3041 return (mError=BAD_TYPE);
3042 }
3043 mError = header->values.getError();
3044 if (mError != NO_ERROR) {
3045 ALOGW("No string values found in resource table!");
3046 }
3047
3048 TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3049 return mError;
3050 }
3051
getError() const3052 status_t ResTable::getError() const
3053 {
3054 return mError;
3055 }
3056
uninit()3057 void ResTable::uninit()
3058 {
3059 mError = NO_INIT;
3060 size_t N = mPackageGroups.size();
3061 for (size_t i=0; i<N; i++) {
3062 PackageGroup* g = mPackageGroups[i];
3063 delete g;
3064 }
3065 N = mHeaders.size();
3066 for (size_t i=0; i<N; i++) {
3067 Header* header = mHeaders[i];
3068 if (header->owner == this) {
3069 if (header->ownedData) {
3070 free(header->ownedData);
3071 }
3072 delete header;
3073 }
3074 }
3075
3076 mPackageGroups.clear();
3077 mHeaders.clear();
3078 }
3079
getResourceName(uint32_t resID,bool allowUtf8,resource_name * outName) const3080 bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3081 {
3082 if (mError != NO_ERROR) {
3083 return false;
3084 }
3085
3086 const ssize_t p = getResourcePackageIndex(resID);
3087 const int t = Res_GETTYPE(resID);
3088 const int e = Res_GETENTRY(resID);
3089
3090 if (p < 0) {
3091 if (Res_GETPACKAGE(resID)+1 == 0) {
3092 ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3093 } else {
3094 ALOGW("No known package when getting name for resource number 0x%08x", resID);
3095 }
3096 return false;
3097 }
3098 if (t < 0) {
3099 ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3100 return false;
3101 }
3102
3103 const PackageGroup* const grp = mPackageGroups[p];
3104 if (grp == NULL) {
3105 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3106 return false;
3107 }
3108 if (grp->packages.size() > 0) {
3109 const Package* const package = grp->packages[0];
3110
3111 const ResTable_type* type;
3112 const ResTable_entry* entry;
3113 ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
3114 if (offset <= 0) {
3115 return false;
3116 }
3117
3118 outName->package = grp->name.string();
3119 outName->packageLen = grp->name.size();
3120 if (allowUtf8) {
3121 outName->type8 = grp->basePackage->typeStrings.string8At(t, &outName->typeLen);
3122 outName->name8 = grp->basePackage->keyStrings.string8At(
3123 dtohl(entry->key.index), &outName->nameLen);
3124 } else {
3125 outName->type8 = NULL;
3126 outName->name8 = NULL;
3127 }
3128 if (outName->type8 == NULL) {
3129 outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
3130 // If we have a bad index for some reason, we should abort.
3131 if (outName->type == NULL) {
3132 return false;
3133 }
3134 }
3135 if (outName->name8 == NULL) {
3136 outName->name = grp->basePackage->keyStrings.stringAt(
3137 dtohl(entry->key.index), &outName->nameLen);
3138 // If we have a bad index for some reason, we should abort.
3139 if (outName->name == NULL) {
3140 return false;
3141 }
3142 }
3143
3144 return true;
3145 }
3146
3147 return false;
3148 }
3149
getResource(uint32_t resID,Res_value * outValue,bool mayBeBag,uint16_t density,uint32_t * outSpecFlags,ResTable_config * outConfig) const3150 ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3151 uint32_t* outSpecFlags, ResTable_config* outConfig) const
3152 {
3153 if (mError != NO_ERROR) {
3154 return mError;
3155 }
3156
3157 const ssize_t p = getResourcePackageIndex(resID);
3158 const int t = Res_GETTYPE(resID);
3159 const int e = Res_GETENTRY(resID);
3160
3161 if (p < 0) {
3162 if (Res_GETPACKAGE(resID)+1 == 0) {
3163 ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3164 } else {
3165 ALOGW("No known package when getting value for resource number 0x%08x", resID);
3166 }
3167 return BAD_INDEX;
3168 }
3169 if (t < 0) {
3170 ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3171 return BAD_INDEX;
3172 }
3173
3174 const Res_value* bestValue = NULL;
3175 const Package* bestPackage = NULL;
3176 ResTable_config bestItem;
3177 memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
3178
3179 if (outSpecFlags != NULL) *outSpecFlags = 0;
3180
3181 // Look through all resource packages, starting with the most
3182 // recently added.
3183 const PackageGroup* const grp = mPackageGroups[p];
3184 if (grp == NULL) {
3185 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3186 return BAD_INDEX;
3187 }
3188
3189 // Allow overriding density
3190 const ResTable_config* desiredConfig = &mParams;
3191 ResTable_config* overrideConfig = NULL;
3192 if (density > 0) {
3193 overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config));
3194 if (overrideConfig == NULL) {
3195 ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno));
3196 return BAD_INDEX;
3197 }
3198 memcpy(overrideConfig, &mParams, sizeof(ResTable_config));
3199 overrideConfig->density = density;
3200 desiredConfig = overrideConfig;
3201 }
3202
3203 ssize_t rc = BAD_VALUE;
3204 size_t ip = grp->packages.size();
3205 while (ip > 0) {
3206 ip--;
3207 int T = t;
3208 int E = e;
3209
3210 const Package* const package = grp->packages[ip];
3211 if (package->header->resourceIDMap) {
3212 uint32_t overlayResID = 0x0;
3213 status_t retval = idmapLookup(package->header->resourceIDMap,
3214 package->header->resourceIDMapSize,
3215 resID, &overlayResID);
3216 if (retval == NO_ERROR && overlayResID != 0x0) {
3217 // for this loop iteration, this is the type and entry we really want
3218 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3219 T = Res_GETTYPE(overlayResID);
3220 E = Res_GETENTRY(overlayResID);
3221 } else {
3222 // resource not present in overlay package, continue with the next package
3223 continue;
3224 }
3225 }
3226
3227 const ResTable_type* type;
3228 const ResTable_entry* entry;
3229 const Type* typeClass;
3230 ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
3231 if (offset <= 0) {
3232 // No {entry, appropriate config} pair found in package. If this
3233 // package is an overlay package (ip != 0), this simply means the
3234 // overlay package did not specify a default.
3235 // Non-overlay packages are still required to provide a default.
3236 if (offset < 0 && ip == 0) {
3237 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
3238 resID, T, E, ip, (int)offset);
3239 rc = offset;
3240 goto out;
3241 }
3242 continue;
3243 }
3244
3245 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
3246 if (!mayBeBag) {
3247 ALOGW("Requesting resource %p failed because it is complex\n",
3248 (void*)resID);
3249 }
3250 continue;
3251 }
3252
3253 TABLE_NOISY(aout << "Resource type data: "
3254 << HexDump(type, dtohl(type->header.size)) << endl);
3255
3256 if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
3257 ALOGW("ResTable_item at %d is beyond type chunk data %d",
3258 (int)offset, dtohl(type->header.size));
3259 rc = BAD_TYPE;
3260 goto out;
3261 }
3262
3263 const Res_value* item =
3264 (const Res_value*)(((const uint8_t*)type) + offset);
3265 ResTable_config thisConfig;
3266 thisConfig.copyFromDtoH(type->config);
3267
3268 if (outSpecFlags != NULL) {
3269 if (typeClass->typeSpecFlags != NULL) {
3270 *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3271 } else {
3272 *outSpecFlags = -1;
3273 }
3274 }
3275
3276 if (bestPackage != NULL &&
3277 (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
3278 // Discard thisConfig not only if bestItem is more specific, but also if the two configs
3279 // are identical (diff == 0), or overlay packages will not take effect.
3280 continue;
3281 }
3282
3283 bestItem = thisConfig;
3284 bestValue = item;
3285 bestPackage = package;
3286 }
3287
3288 TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
3289
3290 if (bestValue) {
3291 outValue->size = dtohs(bestValue->size);
3292 outValue->res0 = bestValue->res0;
3293 outValue->dataType = bestValue->dataType;
3294 outValue->data = dtohl(bestValue->data);
3295 if (outConfig != NULL) {
3296 *outConfig = bestItem;
3297 }
3298 TABLE_NOISY(size_t len;
3299 printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3300 bestPackage->header->index,
3301 outValue->dataType,
3302 outValue->dataType == bestValue->TYPE_STRING
3303 ? String8(bestPackage->header->values.stringAt(
3304 outValue->data, &len)).string()
3305 : "",
3306 outValue->data));
3307 rc = bestPackage->header->index;
3308 goto out;
3309 }
3310
3311 out:
3312 if (overrideConfig != NULL) {
3313 free(overrideConfig);
3314 }
3315
3316 return rc;
3317 }
3318
resolveReference(Res_value * value,ssize_t blockIndex,uint32_t * outLastRef,uint32_t * inoutTypeSpecFlags,ResTable_config * outConfig) const3319 ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3320 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3321 ResTable_config* outConfig) const
3322 {
3323 int count=0;
3324 while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE
3325 && value->data != 0 && count < 20) {
3326 if (outLastRef) *outLastRef = value->data;
3327 uint32_t lastRef = value->data;
3328 uint32_t newFlags = 0;
3329 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3330 outConfig);
3331 if (newIndex == BAD_INDEX) {
3332 return BAD_INDEX;
3333 }
3334 TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3335 (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3336 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3337 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3338 if (newIndex < 0) {
3339 // This can fail if the resource being referenced is a style...
3340 // in this case, just return the reference, and expect the
3341 // caller to deal with.
3342 return blockIndex;
3343 }
3344 blockIndex = newIndex;
3345 count++;
3346 }
3347 return blockIndex;
3348 }
3349
valueToString(const Res_value * value,size_t stringBlock,char16_t tmpBuffer[TMP_BUFFER_SIZE],size_t * outLen)3350 const char16_t* ResTable::valueToString(
3351 const Res_value* value, size_t stringBlock,
3352 char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen)
3353 {
3354 if (!value) {
3355 return NULL;
3356 }
3357 if (value->dataType == value->TYPE_STRING) {
3358 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3359 }
3360 // XXX do int to string conversions.
3361 return NULL;
3362 }
3363
lockBag(uint32_t resID,const bag_entry ** outBag) const3364 ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3365 {
3366 mLock.lock();
3367 ssize_t err = getBagLocked(resID, outBag);
3368 if (err < NO_ERROR) {
3369 //printf("*** get failed! unlocking\n");
3370 mLock.unlock();
3371 }
3372 return err;
3373 }
3374
unlockBag(const bag_entry * bag) const3375 void ResTable::unlockBag(const bag_entry* bag) const
3376 {
3377 //printf("<<< unlockBag %p\n", this);
3378 mLock.unlock();
3379 }
3380
lock() const3381 void ResTable::lock() const
3382 {
3383 mLock.lock();
3384 }
3385
unlock() const3386 void ResTable::unlock() const
3387 {
3388 mLock.unlock();
3389 }
3390
getBagLocked(uint32_t resID,const bag_entry ** outBag,uint32_t * outTypeSpecFlags) const3391 ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3392 uint32_t* outTypeSpecFlags) const
3393 {
3394 if (mError != NO_ERROR) {
3395 return mError;
3396 }
3397
3398 const ssize_t p = getResourcePackageIndex(resID);
3399 const int t = Res_GETTYPE(resID);
3400 const int e = Res_GETENTRY(resID);
3401
3402 if (p < 0) {
3403 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3404 return BAD_INDEX;
3405 }
3406 if (t < 0) {
3407 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3408 return BAD_INDEX;
3409 }
3410
3411 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3412 PackageGroup* const grp = mPackageGroups[p];
3413 if (grp == NULL) {
3414 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3415 return false;
3416 }
3417
3418 if (t >= (int)grp->typeCount) {
3419 ALOGW("Type identifier 0x%x is larger than type count 0x%x",
3420 t+1, (int)grp->typeCount);
3421 return BAD_INDEX;
3422 }
3423
3424 const Package* const basePackage = grp->packages[0];
3425
3426 const Type* const typeConfigs = basePackage->getType(t);
3427
3428 const size_t NENTRY = typeConfigs->entryCount;
3429 if (e >= (int)NENTRY) {
3430 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3431 e, (int)typeConfigs->entryCount);
3432 return BAD_INDEX;
3433 }
3434
3435 // First see if we've already computed this bag...
3436 if (grp->bags) {
3437 bag_set** typeSet = grp->bags[t];
3438 if (typeSet) {
3439 bag_set* set = typeSet[e];
3440 if (set) {
3441 if (set != (bag_set*)0xFFFFFFFF) {
3442 if (outTypeSpecFlags != NULL) {
3443 *outTypeSpecFlags = set->typeSpecFlags;
3444 }
3445 *outBag = (bag_entry*)(set+1);
3446 //ALOGI("Found existing bag for: %p\n", (void*)resID);
3447 return set->numAttrs;
3448 }
3449 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3450 resID);
3451 return BAD_INDEX;
3452 }
3453 }
3454 }
3455
3456 // Bag not found, we need to compute it!
3457 if (!grp->bags) {
3458 grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*));
3459 if (!grp->bags) return NO_MEMORY;
3460 }
3461
3462 bag_set** typeSet = grp->bags[t];
3463 if (!typeSet) {
3464 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3465 if (!typeSet) return NO_MEMORY;
3466 grp->bags[t] = typeSet;
3467 }
3468
3469 // Mark that we are currently working on this one.
3470 typeSet[e] = (bag_set*)0xFFFFFFFF;
3471
3472 // This is what we are building.
3473 bag_set* set = NULL;
3474
3475 TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3476
3477 ResTable_config bestConfig;
3478 memset(&bestConfig, 0, sizeof(bestConfig));
3479
3480 // Now collect all bag attributes from all packages.
3481 size_t ip = grp->packages.size();
3482 while (ip > 0) {
3483 ip--;
3484 int T = t;
3485 int E = e;
3486
3487 const Package* const package = grp->packages[ip];
3488 if (package->header->resourceIDMap) {
3489 uint32_t overlayResID = 0x0;
3490 status_t retval = idmapLookup(package->header->resourceIDMap,
3491 package->header->resourceIDMapSize,
3492 resID, &overlayResID);
3493 if (retval == NO_ERROR && overlayResID != 0x0) {
3494 // for this loop iteration, this is the type and entry we really want
3495 ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3496 T = Res_GETTYPE(overlayResID);
3497 E = Res_GETENTRY(overlayResID);
3498 } else {
3499 // resource not present in overlay package, continue with the next package
3500 continue;
3501 }
3502 }
3503
3504 const ResTable_type* type;
3505 const ResTable_entry* entry;
3506 const Type* typeClass;
3507 ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
3508 ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
3509 ALOGV("Resulting offset=%d\n", offset);
3510 if (offset <= 0) {
3511 // No {entry, appropriate config} pair found in package. If this
3512 // package is an overlay package (ip != 0), this simply means the
3513 // overlay package did not specify a default.
3514 // Non-overlay packages are still required to provide a default.
3515 if (offset < 0 && ip == 0) {
3516 if (set) free(set);
3517 return offset;
3518 }
3519 continue;
3520 }
3521
3522 if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
3523 ALOGW("Skipping entry %p in package table %d because it is not complex!\n",
3524 (void*)resID, (int)ip);
3525 continue;
3526 }
3527
3528 if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
3529 continue;
3530 }
3531 bestConfig = type->config;
3532 if (set) {
3533 free(set);
3534 set = NULL;
3535 }
3536
3537 const uint16_t entrySize = dtohs(entry->size);
3538 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3539 ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
3540 const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3541 ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
3542
3543 size_t N = count;
3544
3545 TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3546 entrySize, parent, count));
3547
3548 // If this map inherits from another, we need to start
3549 // with its parent's values. Otherwise start out empty.
3550 TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3551 entrySize, parent));
3552 if (parent) {
3553 const bag_entry* parentBag;
3554 uint32_t parentTypeSpecFlags = 0;
3555 const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
3556 const size_t NT = ((NP >= 0) ? NP : 0) + N;
3557 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3558 if (set == NULL) {
3559 return NO_MEMORY;
3560 }
3561 if (NP > 0) {
3562 memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3563 set->numAttrs = NP;
3564 TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3565 } else {
3566 TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3567 set->numAttrs = 0;
3568 }
3569 set->availAttrs = NT;
3570 set->typeSpecFlags = parentTypeSpecFlags;
3571 } else {
3572 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3573 if (set == NULL) {
3574 return NO_MEMORY;
3575 }
3576 set->numAttrs = 0;
3577 set->availAttrs = N;
3578 set->typeSpecFlags = 0;
3579 }
3580
3581 if (typeClass->typeSpecFlags != NULL) {
3582 set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3583 } else {
3584 set->typeSpecFlags = -1;
3585 }
3586
3587 // Now merge in the new attributes...
3588 ssize_t curOff = offset;
3589 const ResTable_map* map;
3590 bag_entry* entries = (bag_entry*)(set+1);
3591 size_t curEntry = 0;
3592 uint32_t pos = 0;
3593 TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3594 set, entries, set->availAttrs));
3595 while (pos < count) {
3596 TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3597
3598 if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
3599 ALOGW("ResTable_map at %d is beyond type chunk data %d",
3600 (int)curOff, dtohl(type->header.size));
3601 return BAD_TYPE;
3602 }
3603 map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
3604 N++;
3605
3606 const uint32_t newName = htodl(map->name.ident);
3607 bool isInside;
3608 uint32_t oldName = 0;
3609 while ((isInside=(curEntry < set->numAttrs))
3610 && (oldName=entries[curEntry].map.name.ident) < newName) {
3611 TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3612 curEntry, entries[curEntry].map.name.ident));
3613 curEntry++;
3614 }
3615
3616 if ((!isInside) || oldName != newName) {
3617 // This is a new attribute... figure out what to do with it.
3618 if (set->numAttrs >= set->availAttrs) {
3619 // Need to alloc more memory...
3620 const size_t newAvail = set->availAttrs+N;
3621 set = (bag_set*)realloc(set,
3622 sizeof(bag_set)
3623 + sizeof(bag_entry)*newAvail);
3624 if (set == NULL) {
3625 return NO_MEMORY;
3626 }
3627 set->availAttrs = newAvail;
3628 entries = (bag_entry*)(set+1);
3629 TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3630 set, entries, set->availAttrs));
3631 }
3632 if (isInside) {
3633 // Going in the middle, need to make space.
3634 memmove(entries+curEntry+1, entries+curEntry,
3635 sizeof(bag_entry)*(set->numAttrs-curEntry));
3636 set->numAttrs++;
3637 }
3638 TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3639 curEntry, newName));
3640 } else {
3641 TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3642 curEntry, oldName));
3643 }
3644
3645 bag_entry* cur = entries+curEntry;
3646
3647 cur->stringBlock = package->header->index;
3648 cur->map.name.ident = newName;
3649 cur->map.value.copyFrom_dtoh(map->value);
3650 TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3651 curEntry, cur, cur->stringBlock, cur->map.name.ident,
3652 cur->map.value.dataType, cur->map.value.data));
3653
3654 // On to the next!
3655 curEntry++;
3656 pos++;
3657 const size_t size = dtohs(map->value.size);
3658 curOff += size + sizeof(*map)-sizeof(map->value);
3659 };
3660 if (curEntry > set->numAttrs) {
3661 set->numAttrs = curEntry;
3662 }
3663 }
3664
3665 // And this is it...
3666 typeSet[e] = set;
3667 if (set) {
3668 if (outTypeSpecFlags != NULL) {
3669 *outTypeSpecFlags = set->typeSpecFlags;
3670 }
3671 *outBag = (bag_entry*)(set+1);
3672 TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3673 return set->numAttrs;
3674 }
3675 return BAD_INDEX;
3676 }
3677
setParameters(const ResTable_config * params)3678 void ResTable::setParameters(const ResTable_config* params)
3679 {
3680 mLock.lock();
3681 TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
3682 mParams = *params;
3683 for (size_t i=0; i<mPackageGroups.size(); i++) {
3684 TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
3685 mPackageGroups[i]->clearBagCache();
3686 }
3687 mLock.unlock();
3688 }
3689
getParameters(ResTable_config * params) const3690 void ResTable::getParameters(ResTable_config* params) const
3691 {
3692 mLock.lock();
3693 *params = mParams;
3694 mLock.unlock();
3695 }
3696
3697 struct id_name_map {
3698 uint32_t id;
3699 size_t len;
3700 char16_t name[6];
3701 };
3702
3703 const static id_name_map ID_NAMES[] = {
3704 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } },
3705 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } },
3706 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } },
3707 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } },
3708 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
3709 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } },
3710 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } },
3711 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } },
3712 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } },
3713 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } },
3714 };
3715
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) const3716 uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
3717 const char16_t* type, size_t typeLen,
3718 const char16_t* package,
3719 size_t packageLen,
3720 uint32_t* outTypeSpecFlags) const
3721 {
3722 TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
3723
3724 // Check for internal resource identifier as the very first thing, so
3725 // that we will always find them even when there are no resources.
3726 if (name[0] == '^') {
3727 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
3728 size_t len;
3729 for (int i=0; i<N; i++) {
3730 const id_name_map* m = ID_NAMES + i;
3731 len = m->len;
3732 if (len != nameLen) {
3733 continue;
3734 }
3735 for (size_t j=1; j<len; j++) {
3736 if (m->name[j] != name[j]) {
3737 goto nope;
3738 }
3739 }
3740 if (outTypeSpecFlags) {
3741 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3742 }
3743 return m->id;
3744 nope:
3745 ;
3746 }
3747 if (nameLen > 7) {
3748 if (name[1] == 'i' && name[2] == 'n'
3749 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
3750 && name[6] == '_') {
3751 int index = atoi(String8(name + 7, nameLen - 7).string());
3752 if (Res_CHECKID(index)) {
3753 ALOGW("Array resource index: %d is too large.",
3754 index);
3755 return 0;
3756 }
3757 if (outTypeSpecFlags) {
3758 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3759 }
3760 return Res_MAKEARRAY(index);
3761 }
3762 }
3763 return 0;
3764 }
3765
3766 if (mError != NO_ERROR) {
3767 return 0;
3768 }
3769
3770 bool fakePublic = false;
3771
3772 // Figure out the package and type we are looking in...
3773
3774 const char16_t* packageEnd = NULL;
3775 const char16_t* typeEnd = NULL;
3776 const char16_t* const nameEnd = name+nameLen;
3777 const char16_t* p = name;
3778 while (p < nameEnd) {
3779 if (*p == ':') packageEnd = p;
3780 else if (*p == '/') typeEnd = p;
3781 p++;
3782 }
3783 if (*name == '@') {
3784 name++;
3785 if (*name == '*') {
3786 fakePublic = true;
3787 name++;
3788 }
3789 }
3790 if (name >= nameEnd) {
3791 return 0;
3792 }
3793
3794 if (packageEnd) {
3795 package = name;
3796 packageLen = packageEnd-name;
3797 name = packageEnd+1;
3798 } else if (!package) {
3799 return 0;
3800 }
3801
3802 if (typeEnd) {
3803 type = name;
3804 typeLen = typeEnd-name;
3805 name = typeEnd+1;
3806 } else if (!type) {
3807 return 0;
3808 }
3809
3810 if (name >= nameEnd) {
3811 return 0;
3812 }
3813 nameLen = nameEnd-name;
3814
3815 TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
3816 String8(type, typeLen).string(),
3817 String8(name, nameLen).string(),
3818 String8(package, packageLen).string()));
3819
3820 const size_t NG = mPackageGroups.size();
3821 for (size_t ig=0; ig<NG; ig++) {
3822 const PackageGroup* group = mPackageGroups[ig];
3823
3824 if (strzcmp16(package, packageLen,
3825 group->name.string(), group->name.size())) {
3826 TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
3827 continue;
3828 }
3829
3830 const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
3831 if (ti < 0) {
3832 TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
3833 continue;
3834 }
3835
3836 const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
3837 if (ei < 0) {
3838 TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
3839 continue;
3840 }
3841
3842 TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
3843
3844 const Type* const typeConfigs = group->packages[0]->getType(ti);
3845 if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
3846 TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
3847 String8(group->name).string(), ti));
3848 }
3849
3850 size_t NTC = typeConfigs->configs.size();
3851 for (size_t tci=0; tci<NTC; tci++) {
3852 const ResTable_type* const ty = typeConfigs->configs[tci];
3853 const uint32_t typeOffset = dtohl(ty->entriesStart);
3854
3855 const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
3856 const uint32_t* const eindex = (const uint32_t*)
3857 (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
3858
3859 const size_t NE = dtohl(ty->entryCount);
3860 for (size_t i=0; i<NE; i++) {
3861 uint32_t offset = dtohl(eindex[i]);
3862 if (offset == ResTable_type::NO_ENTRY) {
3863 continue;
3864 }
3865
3866 offset += typeOffset;
3867
3868 if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
3869 ALOGW("ResTable_entry at %d is beyond type chunk data %d",
3870 offset, dtohl(ty->header.size));
3871 return 0;
3872 }
3873 if ((offset&0x3) != 0) {
3874 ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
3875 (int)offset, (int)group->id, (int)ti+1, (int)i,
3876 String8(package, packageLen).string(),
3877 String8(type, typeLen).string(),
3878 String8(name, nameLen).string());
3879 return 0;
3880 }
3881
3882 const ResTable_entry* const entry = (const ResTable_entry*)
3883 (((const uint8_t*)ty) + offset);
3884 if (dtohs(entry->size) < sizeof(*entry)) {
3885 ALOGW("ResTable_entry size %d is too small", dtohs(entry->size));
3886 return BAD_TYPE;
3887 }
3888
3889 TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
3890 i, ei, dtohl(entry->key.index)));
3891 if (dtohl(entry->key.index) == (size_t)ei) {
3892 if (outTypeSpecFlags) {
3893 *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
3894 if (fakePublic) {
3895 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
3896 }
3897 }
3898 return Res_MAKEID(group->id-1, ti, i);
3899 }
3900 }
3901 }
3902 }
3903
3904 return 0;
3905 }
3906
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)3907 bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
3908 String16* outPackage,
3909 String16* outType,
3910 String16* outName,
3911 const String16* defType,
3912 const String16* defPackage,
3913 const char** outErrorMsg,
3914 bool* outPublicOnly)
3915 {
3916 const char16_t* packageEnd = NULL;
3917 const char16_t* typeEnd = NULL;
3918 const char16_t* p = refStr;
3919 const char16_t* const end = p + refLen;
3920 while (p < end) {
3921 if (*p == ':') packageEnd = p;
3922 else if (*p == '/') {
3923 typeEnd = p;
3924 break;
3925 }
3926 p++;
3927 }
3928 p = refStr;
3929 if (*p == '@') p++;
3930
3931 if (outPublicOnly != NULL) {
3932 *outPublicOnly = true;
3933 }
3934 if (*p == '*') {
3935 p++;
3936 if (outPublicOnly != NULL) {
3937 *outPublicOnly = false;
3938 }
3939 }
3940
3941 if (packageEnd) {
3942 *outPackage = String16(p, packageEnd-p);
3943 p = packageEnd+1;
3944 } else {
3945 if (!defPackage) {
3946 if (outErrorMsg) {
3947 *outErrorMsg = "No resource package specified";
3948 }
3949 return false;
3950 }
3951 *outPackage = *defPackage;
3952 }
3953 if (typeEnd) {
3954 *outType = String16(p, typeEnd-p);
3955 p = typeEnd+1;
3956 } else {
3957 if (!defType) {
3958 if (outErrorMsg) {
3959 *outErrorMsg = "No resource type specified";
3960 }
3961 return false;
3962 }
3963 *outType = *defType;
3964 }
3965 *outName = String16(p, end-p);
3966 if(**outPackage == 0) {
3967 if(outErrorMsg) {
3968 *outErrorMsg = "Resource package cannot be an empty string";
3969 }
3970 return false;
3971 }
3972 if(**outType == 0) {
3973 if(outErrorMsg) {
3974 *outErrorMsg = "Resource type cannot be an empty string";
3975 }
3976 return false;
3977 }
3978 if(**outName == 0) {
3979 if(outErrorMsg) {
3980 *outErrorMsg = "Resource id cannot be an empty string";
3981 }
3982 return false;
3983 }
3984 return true;
3985 }
3986
get_hex(char c,bool * outError)3987 static uint32_t get_hex(char c, bool* outError)
3988 {
3989 if (c >= '0' && c <= '9') {
3990 return c - '0';
3991 } else if (c >= 'a' && c <= 'f') {
3992 return c - 'a' + 0xa;
3993 } else if (c >= 'A' && c <= 'F') {
3994 return c - 'A' + 0xa;
3995 }
3996 *outError = true;
3997 return 0;
3998 }
3999
4000 struct unit_entry
4001 {
4002 const char* name;
4003 size_t len;
4004 uint8_t type;
4005 uint32_t unit;
4006 float scale;
4007 };
4008
4009 static const unit_entry unitNames[] = {
4010 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4011 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4012 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4013 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4014 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4015 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4016 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4017 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4018 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4019 { NULL, 0, 0, 0, 0 }
4020 };
4021
parse_unit(const char * str,Res_value * outValue,float * outScale,const char ** outEnd)4022 static bool parse_unit(const char* str, Res_value* outValue,
4023 float* outScale, const char** outEnd)
4024 {
4025 const char* end = str;
4026 while (*end != 0 && !isspace((unsigned char)*end)) {
4027 end++;
4028 }
4029 const size_t len = end-str;
4030
4031 const char* realEnd = end;
4032 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4033 realEnd++;
4034 }
4035 if (*realEnd != 0) {
4036 return false;
4037 }
4038
4039 const unit_entry* cur = unitNames;
4040 while (cur->name) {
4041 if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4042 outValue->dataType = cur->type;
4043 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4044 *outScale = cur->scale;
4045 *outEnd = end;
4046 //printf("Found unit %s for %s\n", cur->name, str);
4047 return true;
4048 }
4049 cur++;
4050 }
4051
4052 return false;
4053 }
4054
4055
stringToInt(const char16_t * s,size_t len,Res_value * outValue)4056 bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4057 {
4058 while (len > 0 && isspace16(*s)) {
4059 s++;
4060 len--;
4061 }
4062
4063 if (len <= 0) {
4064 return false;
4065 }
4066
4067 size_t i = 0;
4068 int32_t val = 0;
4069 bool neg = false;
4070
4071 if (*s == '-') {
4072 neg = true;
4073 i++;
4074 }
4075
4076 if (s[i] < '0' || s[i] > '9') {
4077 return false;
4078 }
4079
4080 // Decimal or hex?
4081 if (s[i] == '0' && s[i+1] == 'x') {
4082 if (outValue)
4083 outValue->dataType = outValue->TYPE_INT_HEX;
4084 i += 2;
4085 bool error = false;
4086 while (i < len && !error) {
4087 val = (val*16) + get_hex(s[i], &error);
4088 i++;
4089 }
4090 if (error) {
4091 return false;
4092 }
4093 } else {
4094 if (outValue)
4095 outValue->dataType = outValue->TYPE_INT_DEC;
4096 while (i < len) {
4097 if (s[i] < '0' || s[i] > '9') {
4098 return false;
4099 }
4100 val = (val*10) + s[i]-'0';
4101 i++;
4102 }
4103 }
4104
4105 if (neg) val = -val;
4106
4107 while (i < len && isspace16(s[i])) {
4108 i++;
4109 }
4110
4111 if (i == len) {
4112 if (outValue)
4113 outValue->data = val;
4114 return true;
4115 }
4116
4117 return false;
4118 }
4119
stringToFloat(const char16_t * s,size_t len,Res_value * outValue)4120 bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4121 {
4122 while (len > 0 && isspace16(*s)) {
4123 s++;
4124 len--;
4125 }
4126
4127 if (len <= 0) {
4128 return false;
4129 }
4130
4131 char buf[128];
4132 int i=0;
4133 while (len > 0 && *s != 0 && i < 126) {
4134 if (*s > 255) {
4135 return false;
4136 }
4137 buf[i++] = *s++;
4138 len--;
4139 }
4140
4141 if (len > 0) {
4142 return false;
4143 }
4144 if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4145 return false;
4146 }
4147
4148 buf[i] = 0;
4149 const char* end;
4150 float f = strtof(buf, (char**)&end);
4151
4152 if (*end != 0 && !isspace((unsigned char)*end)) {
4153 // Might be a unit...
4154 float scale;
4155 if (parse_unit(end, outValue, &scale, &end)) {
4156 f *= scale;
4157 const bool neg = f < 0;
4158 if (neg) f = -f;
4159 uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4160 uint32_t radix;
4161 uint32_t shift;
4162 if ((bits&0x7fffff) == 0) {
4163 // Always use 23p0 if there is no fraction, just to make
4164 // things easier to read.
4165 radix = Res_value::COMPLEX_RADIX_23p0;
4166 shift = 23;
4167 } else if ((bits&0xffffffffff800000LL) == 0) {
4168 // Magnitude is zero -- can fit in 0 bits of precision.
4169 radix = Res_value::COMPLEX_RADIX_0p23;
4170 shift = 0;
4171 } else if ((bits&0xffffffff80000000LL) == 0) {
4172 // Magnitude can fit in 8 bits of precision.
4173 radix = Res_value::COMPLEX_RADIX_8p15;
4174 shift = 8;
4175 } else if ((bits&0xffffff8000000000LL) == 0) {
4176 // Magnitude can fit in 16 bits of precision.
4177 radix = Res_value::COMPLEX_RADIX_16p7;
4178 shift = 16;
4179 } else {
4180 // Magnitude needs entire range, so no fractional part.
4181 radix = Res_value::COMPLEX_RADIX_23p0;
4182 shift = 23;
4183 }
4184 int32_t mantissa = (int32_t)(
4185 (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4186 if (neg) {
4187 mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4188 }
4189 outValue->data |=
4190 (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4191 | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4192 //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4193 // f * (neg ? -1 : 1), bits, f*(1<<23),
4194 // radix, shift, outValue->data);
4195 return true;
4196 }
4197 return false;
4198 }
4199
4200 while (*end != 0 && isspace((unsigned char)*end)) {
4201 end++;
4202 }
4203
4204 if (*end == 0) {
4205 if (outValue) {
4206 outValue->dataType = outValue->TYPE_FLOAT;
4207 *(float*)(&outValue->data) = f;
4208 return true;
4209 }
4210 }
4211
4212 return false;
4213 }
4214
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) const4215 bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4216 const char16_t* s, size_t len,
4217 bool preserveSpaces, bool coerceType,
4218 uint32_t attrID,
4219 const String16* defType,
4220 const String16* defPackage,
4221 Accessor* accessor,
4222 void* accessorCookie,
4223 uint32_t attrType,
4224 bool enforcePrivate) const
4225 {
4226 bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4227 const char* errorMsg = NULL;
4228
4229 outValue->size = sizeof(Res_value);
4230 outValue->res0 = 0;
4231
4232 // First strip leading/trailing whitespace. Do this before handling
4233 // escapes, so they can be used to force whitespace into the string.
4234 if (!preserveSpaces) {
4235 while (len > 0 && isspace16(*s)) {
4236 s++;
4237 len--;
4238 }
4239 while (len > 0 && isspace16(s[len-1])) {
4240 len--;
4241 }
4242 // If the string ends with '\', then we keep the space after it.
4243 if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4244 len++;
4245 }
4246 }
4247
4248 //printf("Value for: %s\n", String8(s, len).string());
4249
4250 uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4251 uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4252 bool fromAccessor = false;
4253 if (attrID != 0 && !Res_INTERNALID(attrID)) {
4254 const ssize_t p = getResourcePackageIndex(attrID);
4255 const bag_entry* bag;
4256 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4257 //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4258 if (cnt >= 0) {
4259 while (cnt > 0) {
4260 //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4261 switch (bag->map.name.ident) {
4262 case ResTable_map::ATTR_TYPE:
4263 attrType = bag->map.value.data;
4264 break;
4265 case ResTable_map::ATTR_MIN:
4266 attrMin = bag->map.value.data;
4267 break;
4268 case ResTable_map::ATTR_MAX:
4269 attrMax = bag->map.value.data;
4270 break;
4271 case ResTable_map::ATTR_L10N:
4272 l10nReq = bag->map.value.data;
4273 break;
4274 }
4275 bag++;
4276 cnt--;
4277 }
4278 unlockBag(bag);
4279 } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4280 fromAccessor = true;
4281 if (attrType == ResTable_map::TYPE_ENUM
4282 || attrType == ResTable_map::TYPE_FLAGS
4283 || attrType == ResTable_map::TYPE_INTEGER) {
4284 accessor->getAttributeMin(attrID, &attrMin);
4285 accessor->getAttributeMax(attrID, &attrMax);
4286 }
4287 if (localizationSetting) {
4288 l10nReq = accessor->getAttributeL10N(attrID);
4289 }
4290 }
4291 }
4292
4293 const bool canStringCoerce =
4294 coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4295
4296 if (*s == '@') {
4297 outValue->dataType = outValue->TYPE_REFERENCE;
4298
4299 // Note: we don't check attrType here because the reference can
4300 // be to any other type; we just need to count on the client making
4301 // sure the referenced type is correct.
4302
4303 //printf("Looking up ref: %s\n", String8(s, len).string());
4304
4305 // It's a reference!
4306 if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4307 outValue->data = 0;
4308 return true;
4309 } else {
4310 bool createIfNotFound = false;
4311 const char16_t* resourceRefName;
4312 int resourceNameLen;
4313 if (len > 2 && s[1] == '+') {
4314 createIfNotFound = true;
4315 resourceRefName = s + 2;
4316 resourceNameLen = len - 2;
4317 } else if (len > 2 && s[1] == '*') {
4318 enforcePrivate = false;
4319 resourceRefName = s + 2;
4320 resourceNameLen = len - 2;
4321 } else {
4322 createIfNotFound = false;
4323 resourceRefName = s + 1;
4324 resourceNameLen = len - 1;
4325 }
4326 String16 package, type, name;
4327 if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4328 defType, defPackage, &errorMsg)) {
4329 if (accessor != NULL) {
4330 accessor->reportError(accessorCookie, errorMsg);
4331 }
4332 return false;
4333 }
4334
4335 uint32_t specFlags = 0;
4336 uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4337 type.size(), package.string(), package.size(), &specFlags);
4338 if (rid != 0) {
4339 if (enforcePrivate) {
4340 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4341 if (accessor != NULL) {
4342 accessor->reportError(accessorCookie, "Resource is not public.");
4343 }
4344 return false;
4345 }
4346 }
4347 if (!accessor) {
4348 outValue->data = rid;
4349 return true;
4350 }
4351 rid = Res_MAKEID(
4352 accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4353 Res_GETTYPE(rid), Res_GETENTRY(rid));
4354 TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4355 String8(package).string(), String8(type).string(),
4356 String8(name).string(), rid));
4357 outValue->data = rid;
4358 return true;
4359 }
4360
4361 if (accessor) {
4362 uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4363 createIfNotFound);
4364 if (rid != 0) {
4365 TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4366 String8(package).string(), String8(type).string(),
4367 String8(name).string(), rid));
4368 outValue->data = rid;
4369 return true;
4370 }
4371 }
4372 }
4373
4374 if (accessor != NULL) {
4375 accessor->reportError(accessorCookie, "No resource found that matches the given name");
4376 }
4377 return false;
4378 }
4379
4380 // if we got to here, and localization is required and it's not a reference,
4381 // complain and bail.
4382 if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4383 if (localizationSetting) {
4384 if (accessor != NULL) {
4385 accessor->reportError(accessorCookie, "This attribute must be localized.");
4386 }
4387 }
4388 }
4389
4390 if (*s == '#') {
4391 // It's a color! Convert to an integer of the form 0xaarrggbb.
4392 uint32_t color = 0;
4393 bool error = false;
4394 if (len == 4) {
4395 outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4396 color |= 0xFF000000;
4397 color |= get_hex(s[1], &error) << 20;
4398 color |= get_hex(s[1], &error) << 16;
4399 color |= get_hex(s[2], &error) << 12;
4400 color |= get_hex(s[2], &error) << 8;
4401 color |= get_hex(s[3], &error) << 4;
4402 color |= get_hex(s[3], &error);
4403 } else if (len == 5) {
4404 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4405 color |= get_hex(s[1], &error) << 28;
4406 color |= get_hex(s[1], &error) << 24;
4407 color |= get_hex(s[2], &error) << 20;
4408 color |= get_hex(s[2], &error) << 16;
4409 color |= get_hex(s[3], &error) << 12;
4410 color |= get_hex(s[3], &error) << 8;
4411 color |= get_hex(s[4], &error) << 4;
4412 color |= get_hex(s[4], &error);
4413 } else if (len == 7) {
4414 outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4415 color |= 0xFF000000;
4416 color |= get_hex(s[1], &error) << 20;
4417 color |= get_hex(s[2], &error) << 16;
4418 color |= get_hex(s[3], &error) << 12;
4419 color |= get_hex(s[4], &error) << 8;
4420 color |= get_hex(s[5], &error) << 4;
4421 color |= get_hex(s[6], &error);
4422 } else if (len == 9) {
4423 outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4424 color |= get_hex(s[1], &error) << 28;
4425 color |= get_hex(s[2], &error) << 24;
4426 color |= get_hex(s[3], &error) << 20;
4427 color |= get_hex(s[4], &error) << 16;
4428 color |= get_hex(s[5], &error) << 12;
4429 color |= get_hex(s[6], &error) << 8;
4430 color |= get_hex(s[7], &error) << 4;
4431 color |= get_hex(s[8], &error);
4432 } else {
4433 error = true;
4434 }
4435 if (!error) {
4436 if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4437 if (!canStringCoerce) {
4438 if (accessor != NULL) {
4439 accessor->reportError(accessorCookie,
4440 "Color types not allowed");
4441 }
4442 return false;
4443 }
4444 } else {
4445 outValue->data = color;
4446 //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4447 return true;
4448 }
4449 } else {
4450 if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4451 if (accessor != NULL) {
4452 accessor->reportError(accessorCookie, "Color value not valid --"
4453 " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4454 }
4455 #if 0
4456 fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4457 "Resource File", //(const char*)in->getPrintableSource(),
4458 String8(*curTag).string(),
4459 String8(s, len).string());
4460 #endif
4461 return false;
4462 }
4463 }
4464 }
4465
4466 if (*s == '?') {
4467 outValue->dataType = outValue->TYPE_ATTRIBUTE;
4468
4469 // Note: we don't check attrType here because the reference can
4470 // be to any other type; we just need to count on the client making
4471 // sure the referenced type is correct.
4472
4473 //printf("Looking up attr: %s\n", String8(s, len).string());
4474
4475 static const String16 attr16("attr");
4476 String16 package, type, name;
4477 if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4478 &attr16, defPackage, &errorMsg)) {
4479 if (accessor != NULL) {
4480 accessor->reportError(accessorCookie, errorMsg);
4481 }
4482 return false;
4483 }
4484
4485 //printf("Pkg: %s, Type: %s, Name: %s\n",
4486 // String8(package).string(), String8(type).string(),
4487 // String8(name).string());
4488 uint32_t specFlags = 0;
4489 uint32_t rid =
4490 identifierForName(name.string(), name.size(),
4491 type.string(), type.size(),
4492 package.string(), package.size(), &specFlags);
4493 if (rid != 0) {
4494 if (enforcePrivate) {
4495 if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4496 if (accessor != NULL) {
4497 accessor->reportError(accessorCookie, "Attribute is not public.");
4498 }
4499 return false;
4500 }
4501 }
4502 if (!accessor) {
4503 outValue->data = rid;
4504 return true;
4505 }
4506 rid = Res_MAKEID(
4507 accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4508 Res_GETTYPE(rid), Res_GETENTRY(rid));
4509 //printf("Incl %s:%s/%s: 0x%08x\n",
4510 // String8(package).string(), String8(type).string(),
4511 // String8(name).string(), rid);
4512 outValue->data = rid;
4513 return true;
4514 }
4515
4516 if (accessor) {
4517 uint32_t rid = accessor->getCustomResource(package, type, name);
4518 if (rid != 0) {
4519 //printf("Mine %s:%s/%s: 0x%08x\n",
4520 // String8(package).string(), String8(type).string(),
4521 // String8(name).string(), rid);
4522 outValue->data = rid;
4523 return true;
4524 }
4525 }
4526
4527 if (accessor != NULL) {
4528 accessor->reportError(accessorCookie, "No resource found that matches the given name");
4529 }
4530 return false;
4531 }
4532
4533 if (stringToInt(s, len, outValue)) {
4534 if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4535 // If this type does not allow integers, but does allow floats,
4536 // fall through on this error case because the float type should
4537 // be able to accept any integer value.
4538 if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4539 if (accessor != NULL) {
4540 accessor->reportError(accessorCookie, "Integer types not allowed");
4541 }
4542 return false;
4543 }
4544 } else {
4545 if (((int32_t)outValue->data) < ((int32_t)attrMin)
4546 || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4547 if (accessor != NULL) {
4548 accessor->reportError(accessorCookie, "Integer value out of range");
4549 }
4550 return false;
4551 }
4552 return true;
4553 }
4554 }
4555
4556 if (stringToFloat(s, len, outValue)) {
4557 if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4558 if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4559 return true;
4560 }
4561 if (!canStringCoerce) {
4562 if (accessor != NULL) {
4563 accessor->reportError(accessorCookie, "Dimension types not allowed");
4564 }
4565 return false;
4566 }
4567 } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4568 if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4569 return true;
4570 }
4571 if (!canStringCoerce) {
4572 if (accessor != NULL) {
4573 accessor->reportError(accessorCookie, "Fraction types not allowed");
4574 }
4575 return false;
4576 }
4577 } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4578 if (!canStringCoerce) {
4579 if (accessor != NULL) {
4580 accessor->reportError(accessorCookie, "Float types not allowed");
4581 }
4582 return false;
4583 }
4584 } else {
4585 return true;
4586 }
4587 }
4588
4589 if (len == 4) {
4590 if ((s[0] == 't' || s[0] == 'T') &&
4591 (s[1] == 'r' || s[1] == 'R') &&
4592 (s[2] == 'u' || s[2] == 'U') &&
4593 (s[3] == 'e' || s[3] == 'E')) {
4594 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4595 if (!canStringCoerce) {
4596 if (accessor != NULL) {
4597 accessor->reportError(accessorCookie, "Boolean types not allowed");
4598 }
4599 return false;
4600 }
4601 } else {
4602 outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4603 outValue->data = (uint32_t)-1;
4604 return true;
4605 }
4606 }
4607 }
4608
4609 if (len == 5) {
4610 if ((s[0] == 'f' || s[0] == 'F') &&
4611 (s[1] == 'a' || s[1] == 'A') &&
4612 (s[2] == 'l' || s[2] == 'L') &&
4613 (s[3] == 's' || s[3] == 'S') &&
4614 (s[4] == 'e' || s[4] == 'E')) {
4615 if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4616 if (!canStringCoerce) {
4617 if (accessor != NULL) {
4618 accessor->reportError(accessorCookie, "Boolean types not allowed");
4619 }
4620 return false;
4621 }
4622 } else {
4623 outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4624 outValue->data = 0;
4625 return true;
4626 }
4627 }
4628 }
4629
4630 if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4631 const ssize_t p = getResourcePackageIndex(attrID);
4632 const bag_entry* bag;
4633 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4634 //printf("Got %d for enum\n", cnt);
4635 if (cnt >= 0) {
4636 resource_name rname;
4637 while (cnt > 0) {
4638 if (!Res_INTERNALID(bag->map.name.ident)) {
4639 //printf("Trying attr #%08x\n", bag->map.name.ident);
4640 if (getResourceName(bag->map.name.ident, false, &rname)) {
4641 #if 0
4642 printf("Matching %s against %s (0x%08x)\n",
4643 String8(s, len).string(),
4644 String8(rname.name, rname.nameLen).string(),
4645 bag->map.name.ident);
4646 #endif
4647 if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4648 outValue->dataType = bag->map.value.dataType;
4649 outValue->data = bag->map.value.data;
4650 unlockBag(bag);
4651 return true;
4652 }
4653 }
4654
4655 }
4656 bag++;
4657 cnt--;
4658 }
4659 unlockBag(bag);
4660 }
4661
4662 if (fromAccessor) {
4663 if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4664 return true;
4665 }
4666 }
4667 }
4668
4669 if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4670 const ssize_t p = getResourcePackageIndex(attrID);
4671 const bag_entry* bag;
4672 ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4673 //printf("Got %d for flags\n", cnt);
4674 if (cnt >= 0) {
4675 bool failed = false;
4676 resource_name rname;
4677 outValue->dataType = Res_value::TYPE_INT_HEX;
4678 outValue->data = 0;
4679 const char16_t* end = s + len;
4680 const char16_t* pos = s;
4681 while (pos < end && !failed) {
4682 const char16_t* start = pos;
4683 pos++;
4684 while (pos < end && *pos != '|') {
4685 pos++;
4686 }
4687 //printf("Looking for: %s\n", String8(start, pos-start).string());
4688 const bag_entry* bagi = bag;
4689 ssize_t i;
4690 for (i=0; i<cnt; i++, bagi++) {
4691 if (!Res_INTERNALID(bagi->map.name.ident)) {
4692 //printf("Trying attr #%08x\n", bagi->map.name.ident);
4693 if (getResourceName(bagi->map.name.ident, false, &rname)) {
4694 #if 0
4695 printf("Matching %s against %s (0x%08x)\n",
4696 String8(start,pos-start).string(),
4697 String8(rname.name, rname.nameLen).string(),
4698 bagi->map.name.ident);
4699 #endif
4700 if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
4701 outValue->data |= bagi->map.value.data;
4702 break;
4703 }
4704 }
4705 }
4706 }
4707 if (i >= cnt) {
4708 // Didn't find this flag identifier.
4709 failed = true;
4710 }
4711 if (pos < end) {
4712 pos++;
4713 }
4714 }
4715 unlockBag(bag);
4716 if (!failed) {
4717 //printf("Final flag value: 0x%lx\n", outValue->data);
4718 return true;
4719 }
4720 }
4721
4722
4723 if (fromAccessor) {
4724 if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
4725 //printf("Final flag value: 0x%lx\n", outValue->data);
4726 return true;
4727 }
4728 }
4729 }
4730
4731 if ((attrType&ResTable_map::TYPE_STRING) == 0) {
4732 if (accessor != NULL) {
4733 accessor->reportError(accessorCookie, "String types not allowed");
4734 }
4735 return false;
4736 }
4737
4738 // Generic string handling...
4739 outValue->dataType = outValue->TYPE_STRING;
4740 if (outString) {
4741 bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
4742 if (accessor != NULL) {
4743 accessor->reportError(accessorCookie, errorMsg);
4744 }
4745 return failed;
4746 }
4747
4748 return true;
4749 }
4750
collectString(String16 * outString,const char16_t * s,size_t len,bool preserveSpaces,const char ** outErrorMsg,bool append)4751 bool ResTable::collectString(String16* outString,
4752 const char16_t* s, size_t len,
4753 bool preserveSpaces,
4754 const char** outErrorMsg,
4755 bool append)
4756 {
4757 String16 tmp;
4758
4759 char quoted = 0;
4760 const char16_t* p = s;
4761 while (p < (s+len)) {
4762 while (p < (s+len)) {
4763 const char16_t c = *p;
4764 if (c == '\\') {
4765 break;
4766 }
4767 if (!preserveSpaces) {
4768 if (quoted == 0 && isspace16(c)
4769 && (c != ' ' || isspace16(*(p+1)))) {
4770 break;
4771 }
4772 if (c == '"' && (quoted == 0 || quoted == '"')) {
4773 break;
4774 }
4775 if (c == '\'' && (quoted == 0 || quoted == '\'')) {
4776 /*
4777 * In practice, when people write ' instead of \'
4778 * in a string, they are doing it by accident
4779 * instead of really meaning to use ' as a quoting
4780 * character. Warn them so they don't lose it.
4781 */
4782 if (outErrorMsg) {
4783 *outErrorMsg = "Apostrophe not preceded by \\";
4784 }
4785 return false;
4786 }
4787 }
4788 p++;
4789 }
4790 if (p < (s+len)) {
4791 if (p > s) {
4792 tmp.append(String16(s, p-s));
4793 }
4794 if (!preserveSpaces && (*p == '"' || *p == '\'')) {
4795 if (quoted == 0) {
4796 quoted = *p;
4797 } else {
4798 quoted = 0;
4799 }
4800 p++;
4801 } else if (!preserveSpaces && isspace16(*p)) {
4802 // Space outside of a quote -- consume all spaces and
4803 // leave a single plain space char.
4804 tmp.append(String16(" "));
4805 p++;
4806 while (p < (s+len) && isspace16(*p)) {
4807 p++;
4808 }
4809 } else if (*p == '\\') {
4810 p++;
4811 if (p < (s+len)) {
4812 switch (*p) {
4813 case 't':
4814 tmp.append(String16("\t"));
4815 break;
4816 case 'n':
4817 tmp.append(String16("\n"));
4818 break;
4819 case '#':
4820 tmp.append(String16("#"));
4821 break;
4822 case '@':
4823 tmp.append(String16("@"));
4824 break;
4825 case '?':
4826 tmp.append(String16("?"));
4827 break;
4828 case '"':
4829 tmp.append(String16("\""));
4830 break;
4831 case '\'':
4832 tmp.append(String16("'"));
4833 break;
4834 case '\\':
4835 tmp.append(String16("\\"));
4836 break;
4837 case 'u':
4838 {
4839 char16_t chr = 0;
4840 int i = 0;
4841 while (i < 4 && p[1] != 0) {
4842 p++;
4843 i++;
4844 int c;
4845 if (*p >= '0' && *p <= '9') {
4846 c = *p - '0';
4847 } else if (*p >= 'a' && *p <= 'f') {
4848 c = *p - 'a' + 10;
4849 } else if (*p >= 'A' && *p <= 'F') {
4850 c = *p - 'A' + 10;
4851 } else {
4852 if (outErrorMsg) {
4853 *outErrorMsg = "Bad character in \\u unicode escape sequence";
4854 }
4855 return false;
4856 }
4857 chr = (chr<<4) | c;
4858 }
4859 tmp.append(String16(&chr, 1));
4860 } break;
4861 default:
4862 // ignore unknown escape chars.
4863 break;
4864 }
4865 p++;
4866 }
4867 }
4868 len -= (p-s);
4869 s = p;
4870 }
4871 }
4872
4873 if (tmp.size() != 0) {
4874 if (len > 0) {
4875 tmp.append(String16(s, len));
4876 }
4877 if (append) {
4878 outString->append(tmp);
4879 } else {
4880 outString->setTo(tmp);
4881 }
4882 } else {
4883 if (append) {
4884 outString->append(String16(s, len));
4885 } else {
4886 outString->setTo(s, len);
4887 }
4888 }
4889
4890 return true;
4891 }
4892
getBasePackageCount() const4893 size_t ResTable::getBasePackageCount() const
4894 {
4895 if (mError != NO_ERROR) {
4896 return 0;
4897 }
4898 return mPackageGroups.size();
4899 }
4900
getBasePackageName(size_t idx) const4901 const char16_t* ResTable::getBasePackageName(size_t idx) const
4902 {
4903 if (mError != NO_ERROR) {
4904 return 0;
4905 }
4906 LOG_FATAL_IF(idx >= mPackageGroups.size(),
4907 "Requested package index %d past package count %d",
4908 (int)idx, (int)mPackageGroups.size());
4909 return mPackageGroups[idx]->name.string();
4910 }
4911
getBasePackageId(size_t idx) const4912 uint32_t ResTable::getBasePackageId(size_t idx) const
4913 {
4914 if (mError != NO_ERROR) {
4915 return 0;
4916 }
4917 LOG_FATAL_IF(idx >= mPackageGroups.size(),
4918 "Requested package index %d past package count %d",
4919 (int)idx, (int)mPackageGroups.size());
4920 return mPackageGroups[idx]->id;
4921 }
4922
getTableCount() const4923 size_t ResTable::getTableCount() const
4924 {
4925 return mHeaders.size();
4926 }
4927
getTableStringBlock(size_t index) const4928 const ResStringPool* ResTable::getTableStringBlock(size_t index) const
4929 {
4930 return &mHeaders[index]->values;
4931 }
4932
getTableCookie(size_t index) const4933 void* ResTable::getTableCookie(size_t index) const
4934 {
4935 return mHeaders[index]->cookie;
4936 }
4937
getConfigurations(Vector<ResTable_config> * configs) const4938 void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
4939 {
4940 const size_t I = mPackageGroups.size();
4941 for (size_t i=0; i<I; i++) {
4942 const PackageGroup* packageGroup = mPackageGroups[i];
4943 const size_t J = packageGroup->packages.size();
4944 for (size_t j=0; j<J; j++) {
4945 const Package* package = packageGroup->packages[j];
4946 const size_t K = package->types.size();
4947 for (size_t k=0; k<K; k++) {
4948 const Type* type = package->types[k];
4949 if (type == NULL) continue;
4950 const size_t L = type->configs.size();
4951 for (size_t l=0; l<L; l++) {
4952 const ResTable_type* config = type->configs[l];
4953 const ResTable_config* cfg = &config->config;
4954 // only insert unique
4955 const size_t M = configs->size();
4956 size_t m;
4957 for (m=0; m<M; m++) {
4958 if (0 == (*configs)[m].compare(*cfg)) {
4959 break;
4960 }
4961 }
4962 // if we didn't find it
4963 if (m == M) {
4964 configs->add(*cfg);
4965 }
4966 }
4967 }
4968 }
4969 }
4970 }
4971
getLocales(Vector<String8> * locales) const4972 void ResTable::getLocales(Vector<String8>* locales) const
4973 {
4974 Vector<ResTable_config> configs;
4975 ALOGV("calling getConfigurations");
4976 getConfigurations(&configs);
4977 ALOGV("called getConfigurations size=%d", (int)configs.size());
4978 const size_t I = configs.size();
4979 for (size_t i=0; i<I; i++) {
4980 char locale[6];
4981 configs[i].getLocale(locale);
4982 const size_t J = locales->size();
4983 size_t j;
4984 for (j=0; j<J; j++) {
4985 if (0 == strcmp(locale, (*locales)[j].string())) {
4986 break;
4987 }
4988 }
4989 if (j == J) {
4990 locales->add(String8(locale));
4991 }
4992 }
4993 }
4994
getEntry(const Package * package,int typeIndex,int entryIndex,const ResTable_config * config,const ResTable_type ** outType,const ResTable_entry ** outEntry,const Type ** outTypeClass) const4995 ssize_t ResTable::getEntry(
4996 const Package* package, int typeIndex, int entryIndex,
4997 const ResTable_config* config,
4998 const ResTable_type** outType, const ResTable_entry** outEntry,
4999 const Type** outTypeClass) const
5000 {
5001 ALOGV("Getting entry from package %p\n", package);
5002 const ResTable_package* const pkg = package->package;
5003
5004 const Type* allTypes = package->getType(typeIndex);
5005 ALOGV("allTypes=%p\n", allTypes);
5006 if (allTypes == NULL) {
5007 ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5008 return 0;
5009 }
5010
5011 if ((size_t)entryIndex >= allTypes->entryCount) {
5012 ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
5013 entryIndex, (int)allTypes->entryCount);
5014 return BAD_TYPE;
5015 }
5016
5017 const ResTable_type* type = NULL;
5018 uint32_t offset = ResTable_type::NO_ENTRY;
5019 ResTable_config bestConfig;
5020 memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
5021
5022 const size_t NT = allTypes->configs.size();
5023 for (size_t i=0; i<NT; i++) {
5024 const ResTable_type* const thisType = allTypes->configs[i];
5025 if (thisType == NULL) continue;
5026
5027 ResTable_config thisConfig;
5028 thisConfig.copyFromDtoH(thisType->config);
5029
5030 TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n",
5031 entryIndex, typeIndex+1, dtohl(thisType->config.size),
5032 thisConfig.toString().string()));
5033
5034 // Check to make sure this one is valid for the current parameters.
5035 if (config && !thisConfig.match(*config)) {
5036 TABLE_GETENTRY(ALOGI("Does not match config!\n"));
5037 continue;
5038 }
5039
5040 // Check if there is the desired entry in this type.
5041
5042 const uint8_t* const end = ((const uint8_t*)thisType)
5043 + dtohl(thisType->header.size);
5044 const uint32_t* const eindex = (const uint32_t*)
5045 (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
5046
5047 uint32_t thisOffset = dtohl(eindex[entryIndex]);
5048 if (thisOffset == ResTable_type::NO_ENTRY) {
5049 TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n"));
5050 continue;
5051 }
5052
5053 if (type != NULL) {
5054 // Check if this one is less specific than the last found. If so,
5055 // we will skip it. We check starting with things we most care
5056 // about to those we least care about.
5057 if (!thisConfig.isBetterThan(bestConfig, config)) {
5058 TABLE_GETENTRY(ALOGI("This config is worse than last!\n"));
5059 continue;
5060 }
5061 }
5062
5063 type = thisType;
5064 offset = thisOffset;
5065 bestConfig = thisConfig;
5066 TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n"));
5067 if (!config) break;
5068 }
5069
5070 if (type == NULL) {
5071 TABLE_GETENTRY(ALOGI("No value found for requested entry!\n"));
5072 return BAD_INDEX;
5073 }
5074
5075 offset += dtohl(type->entriesStart);
5076 TABLE_NOISY(aout << "Looking in resource table " << package->header->header
5077 << ", typeOff="
5078 << (void*)(((const char*)type)-((const char*)package->header->header))
5079 << ", offset=" << (void*)offset << endl);
5080
5081 if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
5082 ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5083 offset, dtohl(type->header.size));
5084 return BAD_TYPE;
5085 }
5086 if ((offset&0x3) != 0) {
5087 ALOGW("ResTable_entry at 0x%x is not on an integer boundary",
5088 offset);
5089 return BAD_TYPE;
5090 }
5091
5092 const ResTable_entry* const entry = (const ResTable_entry*)
5093 (((const uint8_t*)type) + offset);
5094 if (dtohs(entry->size) < sizeof(*entry)) {
5095 ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5096 return BAD_TYPE;
5097 }
5098
5099 *outType = type;
5100 *outEntry = entry;
5101 if (outTypeClass != NULL) {
5102 *outTypeClass = allTypes;
5103 }
5104 return offset + dtohs(entry->size);
5105 }
5106
parsePackage(const ResTable_package * const pkg,const Header * const header,uint32_t idmap_id)5107 status_t ResTable::parsePackage(const ResTable_package* const pkg,
5108 const Header* const header, uint32_t idmap_id)
5109 {
5110 const uint8_t* base = (const uint8_t*)pkg;
5111 status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
5112 header->dataEnd, "ResTable_package");
5113 if (err != NO_ERROR) {
5114 return (mError=err);
5115 }
5116
5117 const size_t pkgSize = dtohl(pkg->header.size);
5118
5119 if (dtohl(pkg->typeStrings) >= pkgSize) {
5120 ALOGW("ResTable_package type strings at %p are past chunk size %p.",
5121 (void*)dtohl(pkg->typeStrings), (void*)pkgSize);
5122 return (mError=BAD_TYPE);
5123 }
5124 if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5125 ALOGW("ResTable_package type strings at %p is not on an integer boundary.",
5126 (void*)dtohl(pkg->typeStrings));
5127 return (mError=BAD_TYPE);
5128 }
5129 if (dtohl(pkg->keyStrings) >= pkgSize) {
5130 ALOGW("ResTable_package key strings at %p are past chunk size %p.",
5131 (void*)dtohl(pkg->keyStrings), (void*)pkgSize);
5132 return (mError=BAD_TYPE);
5133 }
5134 if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5135 ALOGW("ResTable_package key strings at %p is not on an integer boundary.",
5136 (void*)dtohl(pkg->keyStrings));
5137 return (mError=BAD_TYPE);
5138 }
5139
5140 Package* package = NULL;
5141 PackageGroup* group = NULL;
5142 uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
5143 // If at this point id == 0, pkg is an overlay package without a
5144 // corresponding idmap. During regular usage, overlay packages are
5145 // always loaded alongside their idmaps, but during idmap creation
5146 // the package is temporarily loaded by itself.
5147 if (id < 256) {
5148
5149 package = new Package(this, header, pkg);
5150 if (package == NULL) {
5151 return (mError=NO_MEMORY);
5152 }
5153
5154 size_t idx = mPackageMap[id];
5155 if (idx == 0) {
5156 idx = mPackageGroups.size()+1;
5157
5158 char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5159 strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5160 group = new PackageGroup(this, String16(tmpName), id);
5161 if (group == NULL) {
5162 delete package;
5163 return (mError=NO_MEMORY);
5164 }
5165
5166 err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5167 header->dataEnd-(base+dtohl(pkg->typeStrings)));
5168 if (err != NO_ERROR) {
5169 delete group;
5170 delete package;
5171 return (mError=err);
5172 }
5173 err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5174 header->dataEnd-(base+dtohl(pkg->keyStrings)));
5175 if (err != NO_ERROR) {
5176 delete group;
5177 delete package;
5178 return (mError=err);
5179 }
5180
5181 //printf("Adding new package id %d at index %d\n", id, idx);
5182 err = mPackageGroups.add(group);
5183 if (err < NO_ERROR) {
5184 return (mError=err);
5185 }
5186 group->basePackage = package;
5187
5188 mPackageMap[id] = (uint8_t)idx;
5189 } else {
5190 group = mPackageGroups.itemAt(idx-1);
5191 if (group == NULL) {
5192 return (mError=UNKNOWN_ERROR);
5193 }
5194 }
5195 err = group->packages.add(package);
5196 if (err < NO_ERROR) {
5197 return (mError=err);
5198 }
5199 } else {
5200 LOG_ALWAYS_FATAL("Package id out of range");
5201 return NO_ERROR;
5202 }
5203
5204
5205 // Iterate through all chunks.
5206 size_t curPackage = 0;
5207
5208 const ResChunk_header* chunk =
5209 (const ResChunk_header*)(((const uint8_t*)pkg)
5210 + dtohs(pkg->header.headerSize));
5211 const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5212 while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5213 ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5214 TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5215 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5216 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5217 const size_t csize = dtohl(chunk->size);
5218 const uint16_t ctype = dtohs(chunk->type);
5219 if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5220 const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5221 err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5222 endPos, "ResTable_typeSpec");
5223 if (err != NO_ERROR) {
5224 return (mError=err);
5225 }
5226
5227 const size_t typeSpecSize = dtohl(typeSpec->header.size);
5228
5229 LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5230 (void*)(base-(const uint8_t*)chunk),
5231 dtohs(typeSpec->header.type),
5232 dtohs(typeSpec->header.headerSize),
5233 (void*)typeSize));
5234 // look for block overrun or int overflow when multiplying by 4
5235 if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5236 || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
5237 > typeSpecSize)) {
5238 ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5239 (void*)(dtohs(typeSpec->header.headerSize)
5240 +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
5241 (void*)typeSpecSize);
5242 return (mError=BAD_TYPE);
5243 }
5244
5245 if (typeSpec->id == 0) {
5246 ALOGW("ResTable_type has an id of 0.");
5247 return (mError=BAD_TYPE);
5248 }
5249
5250 while (package->types.size() < typeSpec->id) {
5251 package->types.add(NULL);
5252 }
5253 Type* t = package->types[typeSpec->id-1];
5254 if (t == NULL) {
5255 t = new Type(header, package, dtohl(typeSpec->entryCount));
5256 package->types.editItemAt(typeSpec->id-1) = t;
5257 } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
5258 ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5259 (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
5260 return (mError=BAD_TYPE);
5261 }
5262 t->typeSpecFlags = (const uint32_t*)(
5263 ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5264 t->typeSpec = typeSpec;
5265
5266 } else if (ctype == RES_TABLE_TYPE_TYPE) {
5267 const ResTable_type* type = (const ResTable_type*)(chunk);
5268 err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5269 endPos, "ResTable_type");
5270 if (err != NO_ERROR) {
5271 return (mError=err);
5272 }
5273
5274 const size_t typeSize = dtohl(type->header.size);
5275
5276 LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5277 (void*)(base-(const uint8_t*)chunk),
5278 dtohs(type->header.type),
5279 dtohs(type->header.headerSize),
5280 (void*)typeSize));
5281 if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
5282 > typeSize) {
5283 ALOGW("ResTable_type entry index to %p extends beyond chunk end %p.",
5284 (void*)(dtohs(type->header.headerSize)
5285 +(sizeof(uint32_t)*dtohl(type->entryCount))),
5286 (void*)typeSize);
5287 return (mError=BAD_TYPE);
5288 }
5289 if (dtohl(type->entryCount) != 0
5290 && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5291 ALOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.",
5292 (void*)dtohl(type->entriesStart), (void*)typeSize);
5293 return (mError=BAD_TYPE);
5294 }
5295 if (type->id == 0) {
5296 ALOGW("ResTable_type has an id of 0.");
5297 return (mError=BAD_TYPE);
5298 }
5299
5300 while (package->types.size() < type->id) {
5301 package->types.add(NULL);
5302 }
5303 Type* t = package->types[type->id-1];
5304 if (t == NULL) {
5305 t = new Type(header, package, dtohl(type->entryCount));
5306 package->types.editItemAt(type->id-1) = t;
5307 } else if (dtohl(type->entryCount) != t->entryCount) {
5308 ALOGW("ResTable_type entry count inconsistent: given %d, previously %d",
5309 (int)dtohl(type->entryCount), (int)t->entryCount);
5310 return (mError=BAD_TYPE);
5311 }
5312
5313 TABLE_GETENTRY(
5314 ResTable_config thisConfig;
5315 thisConfig.copyFromDtoH(type->config);
5316 ALOGI("Adding config to type %d: %s\n",
5317 type->id, thisConfig.toString().string()));
5318 t->configs.add(type);
5319 } else {
5320 status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5321 endPos, "ResTable_package:unknown");
5322 if (err != NO_ERROR) {
5323 return (mError=err);
5324 }
5325 }
5326 chunk = (const ResChunk_header*)
5327 (((const uint8_t*)chunk) + csize);
5328 }
5329
5330 if (group->typeCount == 0) {
5331 group->typeCount = package->types.size();
5332 }
5333
5334 return NO_ERROR;
5335 }
5336
createIdmap(const ResTable & overlay,uint32_t originalCrc,uint32_t overlayCrc,void ** outData,size_t * outSize) const5337 status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
5338 void** outData, size_t* outSize) const
5339 {
5340 // see README for details on the format of map
5341 if (mPackageGroups.size() == 0) {
5342 return UNKNOWN_ERROR;
5343 }
5344 if (mPackageGroups[0]->packages.size() == 0) {
5345 return UNKNOWN_ERROR;
5346 }
5347
5348 Vector<Vector<uint32_t> > map;
5349 const PackageGroup* pg = mPackageGroups[0];
5350 const Package* pkg = pg->packages[0];
5351 size_t typeCount = pkg->types.size();
5352 // starting size is header + first item (number of types in map)
5353 *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
5354 const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5355 const uint32_t pkg_id = pkg->package->id << 24;
5356
5357 for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
5358 ssize_t first = -1;
5359 ssize_t last = -1;
5360 const Type* typeConfigs = pkg->getType(typeIndex);
5361 ssize_t mapIndex = map.add();
5362 if (mapIndex < 0) {
5363 return NO_MEMORY;
5364 }
5365 Vector<uint32_t>& vector = map.editItemAt(mapIndex);
5366 for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5367 uint32_t resID = pkg_id
5368 | (0x00ff0000 & ((typeIndex+1)<<16))
5369 | (0x0000ffff & (entryIndex));
5370 resource_name resName;
5371 if (!this->getResourceName(resID, true, &resName)) {
5372 ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID);
5373 // add dummy value, or trimming leading/trailing zeroes later will fail
5374 vector.push(0);
5375 continue;
5376 }
5377
5378 const String16 overlayType(resName.type, resName.typeLen);
5379 const String16 overlayName(resName.name, resName.nameLen);
5380 uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5381 overlayName.size(),
5382 overlayType.string(),
5383 overlayType.size(),
5384 overlayPackage.string(),
5385 overlayPackage.size());
5386 if (overlayResID != 0) {
5387 overlayResID = pkg_id | (0x00ffffff & overlayResID);
5388 last = Res_GETENTRY(resID);
5389 if (first == -1) {
5390 first = Res_GETENTRY(resID);
5391 }
5392 }
5393 vector.push(overlayResID);
5394 #if 0
5395 if (overlayResID != 0) {
5396 ALOGD("%s/%s 0x%08x -> 0x%08x\n",
5397 String8(String16(resName.type)).string(),
5398 String8(String16(resName.name)).string(),
5399 resID, overlayResID);
5400 }
5401 #endif
5402 }
5403
5404 if (first != -1) {
5405 // shave off trailing entries which lack overlay values
5406 const size_t last_past_one = last + 1;
5407 if (last_past_one < vector.size()) {
5408 vector.removeItemsAt(last_past_one, vector.size() - last_past_one);
5409 }
5410 // shave off leading entries which lack overlay values
5411 vector.removeItemsAt(0, first);
5412 // store offset to first overlaid resource ID of this type
5413 vector.insertAt((uint32_t)first, 0, 1);
5414 // reserve space for number and offset of entries, and the actual entries
5415 *outSize += (2 + vector.size()) * sizeof(uint32_t);
5416 } else {
5417 // no entries of current type defined in overlay package
5418 vector.clear();
5419 // reserve space for type offset
5420 *outSize += 1 * sizeof(uint32_t);
5421 }
5422 }
5423
5424 if ((*outData = malloc(*outSize)) == NULL) {
5425 return NO_MEMORY;
5426 }
5427 uint32_t* data = (uint32_t*)*outData;
5428 *data++ = htodl(IDMAP_MAGIC);
5429 *data++ = htodl(originalCrc);
5430 *data++ = htodl(overlayCrc);
5431 const size_t mapSize = map.size();
5432 *data++ = htodl(mapSize);
5433 size_t offset = mapSize;
5434 for (size_t i = 0; i < mapSize; ++i) {
5435 const Vector<uint32_t>& vector = map.itemAt(i);
5436 const size_t N = vector.size();
5437 if (N == 0) {
5438 *data++ = htodl(0);
5439 } else {
5440 offset++;
5441 *data++ = htodl(offset);
5442 offset += N;
5443 }
5444 }
5445 for (size_t i = 0; i < mapSize; ++i) {
5446 const Vector<uint32_t>& vector = map.itemAt(i);
5447 const size_t N = vector.size();
5448 if (N == 0) {
5449 continue;
5450 }
5451 if (N == 1) { // vector expected to hold (offset) + (N > 0 entries)
5452 ALOGW("idmap: type %d supposedly has entries, but no entries found\n", i);
5453 return UNKNOWN_ERROR;
5454 }
5455 *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
5456 for (size_t j = 0; j < N; ++j) {
5457 const uint32_t& overlayResID = vector.itemAt(j);
5458 *data++ = htodl(overlayResID);
5459 }
5460 }
5461
5462 return NO_ERROR;
5463 }
5464
getIdmapInfo(const void * idmap,size_t sizeBytes,uint32_t * pOriginalCrc,uint32_t * pOverlayCrc)5465 bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
5466 uint32_t* pOriginalCrc, uint32_t* pOverlayCrc)
5467 {
5468 const uint32_t* map = (const uint32_t*)idmap;
5469 if (!assertIdmapHeader(map, sizeBytes)) {
5470 return false;
5471 }
5472 *pOriginalCrc = map[1];
5473 *pOverlayCrc = map[2];
5474 return true;
5475 }
5476
5477
5478 #define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
5479
5480 #define CHAR16_ARRAY_EQ(constant, var, len) \
5481 ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
5482
print_complex(uint32_t complex,bool isFraction)5483 static void print_complex(uint32_t complex, bool isFraction)
5484 {
5485 const float MANTISSA_MULT =
5486 1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
5487 const float RADIX_MULTS[] = {
5488 1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
5489 1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
5490 };
5491
5492 float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
5493 <<Res_value::COMPLEX_MANTISSA_SHIFT))
5494 * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
5495 & Res_value::COMPLEX_RADIX_MASK];
5496 printf("%f", value);
5497
5498 if (!isFraction) {
5499 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5500 case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
5501 case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
5502 case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
5503 case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
5504 case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
5505 case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
5506 default: printf(" (unknown unit)"); break;
5507 }
5508 } else {
5509 switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5510 case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
5511 case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
5512 default: printf(" (unknown unit)"); break;
5513 }
5514 }
5515 }
5516
5517 // Normalize a string for output
normalizeForOutput(const char * input)5518 String8 ResTable::normalizeForOutput( const char *input )
5519 {
5520 String8 ret;
5521 char buff[2];
5522 buff[1] = '\0';
5523
5524 while (*input != '\0') {
5525 switch (*input) {
5526 // All interesting characters are in the ASCII zone, so we are making our own lives
5527 // easier by scanning the string one byte at a time.
5528 case '\\':
5529 ret += "\\\\";
5530 break;
5531 case '\n':
5532 ret += "\\n";
5533 break;
5534 case '"':
5535 ret += "\\\"";
5536 break;
5537 default:
5538 buff[0] = *input;
5539 ret += buff;
5540 break;
5541 }
5542
5543 input++;
5544 }
5545
5546 return ret;
5547 }
5548
print_value(const Package * pkg,const Res_value & value) const5549 void ResTable::print_value(const Package* pkg, const Res_value& value) const
5550 {
5551 if (value.dataType == Res_value::TYPE_NULL) {
5552 printf("(null)\n");
5553 } else if (value.dataType == Res_value::TYPE_REFERENCE) {
5554 printf("(reference) 0x%08x\n", value.data);
5555 } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
5556 printf("(attribute) 0x%08x\n", value.data);
5557 } else if (value.dataType == Res_value::TYPE_STRING) {
5558 size_t len;
5559 const char* str8 = pkg->header->values.string8At(
5560 value.data, &len);
5561 if (str8 != NULL) {
5562 printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
5563 } else {
5564 const char16_t* str16 = pkg->header->values.stringAt(
5565 value.data, &len);
5566 if (str16 != NULL) {
5567 printf("(string16) \"%s\"\n",
5568 normalizeForOutput(String8(str16, len).string()).string());
5569 } else {
5570 printf("(string) null\n");
5571 }
5572 }
5573 } else if (value.dataType == Res_value::TYPE_FLOAT) {
5574 printf("(float) %g\n", *(const float*)&value.data);
5575 } else if (value.dataType == Res_value::TYPE_DIMENSION) {
5576 printf("(dimension) ");
5577 print_complex(value.data, false);
5578 printf("\n");
5579 } else if (value.dataType == Res_value::TYPE_FRACTION) {
5580 printf("(fraction) ");
5581 print_complex(value.data, true);
5582 printf("\n");
5583 } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
5584 || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
5585 printf("(color) #%08x\n", value.data);
5586 } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
5587 printf("(boolean) %s\n", value.data ? "true" : "false");
5588 } else if (value.dataType >= Res_value::TYPE_FIRST_INT
5589 || value.dataType <= Res_value::TYPE_LAST_INT) {
5590 printf("(int) 0x%08x or %d\n", value.data, value.data);
5591 } else {
5592 printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
5593 (int)value.dataType, (int)value.data,
5594 (int)value.size, (int)value.res0);
5595 }
5596 }
5597
print(bool inclValues) const5598 void ResTable::print(bool inclValues) const
5599 {
5600 if (mError != 0) {
5601 printf("mError=0x%x (%s)\n", mError, strerror(mError));
5602 }
5603 #if 0
5604 printf("mParams=%c%c-%c%c,\n",
5605 mParams.language[0], mParams.language[1],
5606 mParams.country[0], mParams.country[1]);
5607 #endif
5608 size_t pgCount = mPackageGroups.size();
5609 printf("Package Groups (%d)\n", (int)pgCount);
5610 for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
5611 const PackageGroup* pg = mPackageGroups[pgIndex];
5612 printf("Package Group %d id=%d packageCount=%d name=%s\n",
5613 (int)pgIndex, pg->id, (int)pg->packages.size(),
5614 String8(pg->name).string());
5615
5616 size_t pkgCount = pg->packages.size();
5617 for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
5618 const Package* pkg = pg->packages[pkgIndex];
5619 size_t typeCount = pkg->types.size();
5620 printf(" Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
5621 pkg->package->id, String8(String16(pkg->package->name)).string(),
5622 (int)typeCount);
5623 for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
5624 const Type* typeConfigs = pkg->getType(typeIndex);
5625 if (typeConfigs == NULL) {
5626 printf(" type %d NULL\n", (int)typeIndex);
5627 continue;
5628 }
5629 const size_t NTC = typeConfigs->configs.size();
5630 printf(" type %d configCount=%d entryCount=%d\n",
5631 (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
5632 if (typeConfigs->typeSpecFlags != NULL) {
5633 for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
5634 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5635 | (0x00ff0000 & ((typeIndex+1)<<16))
5636 | (0x0000ffff & (entryIndex));
5637 resource_name resName;
5638 if (this->getResourceName(resID, true, &resName)) {
5639 String8 type8;
5640 String8 name8;
5641 if (resName.type8 != NULL) {
5642 type8 = String8(resName.type8, resName.typeLen);
5643 } else {
5644 type8 = String8(resName.type, resName.typeLen);
5645 }
5646 if (resName.name8 != NULL) {
5647 name8 = String8(resName.name8, resName.nameLen);
5648 } else {
5649 name8 = String8(resName.name, resName.nameLen);
5650 }
5651 printf(" spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
5652 resID,
5653 CHAR16_TO_CSTR(resName.package, resName.packageLen),
5654 type8.string(), name8.string(),
5655 dtohl(typeConfigs->typeSpecFlags[entryIndex]));
5656 } else {
5657 printf(" INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
5658 }
5659 }
5660 }
5661 for (size_t configIndex=0; configIndex<NTC; configIndex++) {
5662 const ResTable_type* type = typeConfigs->configs[configIndex];
5663 if ((((uint64_t)type)&0x3) != 0) {
5664 printf(" NON-INTEGER ResTable_type ADDRESS: %p\n", type);
5665 continue;
5666 }
5667 String8 configStr = type->config.toString();
5668 printf(" config %s:\n", configStr.size() > 0
5669 ? configStr.string() : "(default)");
5670 size_t entryCount = dtohl(type->entryCount);
5671 uint32_t entriesStart = dtohl(type->entriesStart);
5672 if ((entriesStart&0x3) != 0) {
5673 printf(" NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart);
5674 continue;
5675 }
5676 uint32_t typeSize = dtohl(type->header.size);
5677 if ((typeSize&0x3) != 0) {
5678 printf(" NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize);
5679 continue;
5680 }
5681 for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
5682
5683 const uint8_t* const end = ((const uint8_t*)type)
5684 + dtohl(type->header.size);
5685 const uint32_t* const eindex = (const uint32_t*)
5686 (((const uint8_t*)type) + dtohs(type->header.headerSize));
5687
5688 uint32_t thisOffset = dtohl(eindex[entryIndex]);
5689 if (thisOffset == ResTable_type::NO_ENTRY) {
5690 continue;
5691 }
5692
5693 uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5694 | (0x00ff0000 & ((typeIndex+1)<<16))
5695 | (0x0000ffff & (entryIndex));
5696 resource_name resName;
5697 if (this->getResourceName(resID, true, &resName)) {
5698 String8 type8;
5699 String8 name8;
5700 if (resName.type8 != NULL) {
5701 type8 = String8(resName.type8, resName.typeLen);
5702 } else {
5703 type8 = String8(resName.type, resName.typeLen);
5704 }
5705 if (resName.name8 != NULL) {
5706 name8 = String8(resName.name8, resName.nameLen);
5707 } else {
5708 name8 = String8(resName.name, resName.nameLen);
5709 }
5710 printf(" resource 0x%08x %s:%s/%s: ", resID,
5711 CHAR16_TO_CSTR(resName.package, resName.packageLen),
5712 type8.string(), name8.string());
5713 } else {
5714 printf(" INVALID RESOURCE 0x%08x: ", resID);
5715 }
5716 if ((thisOffset&0x3) != 0) {
5717 printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset);
5718 continue;
5719 }
5720 if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
5721 printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n",
5722 (void*)entriesStart, (void*)thisOffset,
5723 (void*)typeSize);
5724 continue;
5725 }
5726
5727 const ResTable_entry* ent = (const ResTable_entry*)
5728 (((const uint8_t*)type) + entriesStart + thisOffset);
5729 if (((entriesStart + thisOffset)&0x3) != 0) {
5730 printf("NON-INTEGER ResTable_entry OFFSET: %p\n",
5731 (void*)(entriesStart + thisOffset));
5732 continue;
5733 }
5734
5735 uint16_t esize = dtohs(ent->size);
5736 if ((esize&0x3) != 0) {
5737 printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize);
5738 continue;
5739 }
5740 if ((thisOffset+esize) > typeSize) {
5741 printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n",
5742 (void*)entriesStart, (void*)thisOffset,
5743 (void*)esize, (void*)typeSize);
5744 continue;
5745 }
5746
5747 const Res_value* valuePtr = NULL;
5748 const ResTable_map_entry* bagPtr = NULL;
5749 Res_value value;
5750 if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
5751 printf("<bag>");
5752 bagPtr = (const ResTable_map_entry*)ent;
5753 } else {
5754 valuePtr = (const Res_value*)
5755 (((const uint8_t*)ent) + esize);
5756 value.copyFrom_dtoh(*valuePtr);
5757 printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
5758 (int)value.dataType, (int)value.data,
5759 (int)value.size, (int)value.res0);
5760 }
5761
5762 if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
5763 printf(" (PUBLIC)");
5764 }
5765 printf("\n");
5766
5767 if (inclValues) {
5768 if (valuePtr != NULL) {
5769 printf(" ");
5770 print_value(pkg, value);
5771 } else if (bagPtr != NULL) {
5772 const int N = dtohl(bagPtr->count);
5773 const uint8_t* baseMapPtr = (const uint8_t*)ent;
5774 size_t mapOffset = esize;
5775 const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5776 printf(" Parent=0x%08x, Count=%d\n",
5777 dtohl(bagPtr->parent.ident), N);
5778 for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
5779 printf(" #%i (Key=0x%08x): ",
5780 i, dtohl(mapPtr->name.ident));
5781 value.copyFrom_dtoh(mapPtr->value);
5782 print_value(pkg, value);
5783 const size_t size = dtohs(mapPtr->value.size);
5784 mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
5785 mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5786 }
5787 }
5788 }
5789 }
5790 }
5791 }
5792 }
5793 }
5794 }
5795
5796 } // namespace android
5797