diff options
| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:14 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:14 -0800 |
| commit | f72d5de56a522ac3be03873bdde26f23a5eeeb3c (patch) | |
| tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /libdex | |
| parent | 31e30105703263782efd450d356cd67ea01af3b7 (diff) | |
| download | android_dalvik-f72d5de56a522ac3be03873bdde26f23a5eeeb3c.tar.gz android_dalvik-f72d5de56a522ac3be03873bdde26f23a5eeeb3c.tar.bz2 android_dalvik-f72d5de56a522ac3be03873bdde26f23a5eeeb3c.zip | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'libdex')
| -rw-r--r-- | libdex/Android.mk | 64 | ||||
| -rw-r--r-- | libdex/CmdUtils.c | 184 | ||||
| -rw-r--r-- | libdex/CmdUtils.h | 66 | ||||
| -rw-r--r-- | libdex/DexCatch.c | 90 | ||||
| -rw-r--r-- | libdex/DexCatch.h | 162 | ||||
| -rw-r--r-- | libdex/DexClass.c | 192 | ||||
| -rw-r--r-- | libdex/DexClass.h | 162 | ||||
| -rw-r--r-- | libdex/DexDataMap.c | 141 | ||||
| -rw-r--r-- | libdex/DexDataMap.h | 73 | ||||
| -rw-r--r-- | libdex/DexFile.c | 1183 | ||||
| -rw-r--r-- | libdex/DexFile.h | 1054 | ||||
| -rw-r--r-- | libdex/DexInlines.c | 31 | ||||
| -rw-r--r-- | libdex/DexProto.c | 534 | ||||
| -rw-r--r-- | libdex/DexProto.h | 216 | ||||
| -rw-r--r-- | libdex/DexSwapVerify.c | 2851 | ||||
| -rw-r--r-- | libdex/InstrUtils.c | 1234 | ||||
| -rw-r--r-- | libdex/InstrUtils.h | 177 | ||||
| -rw-r--r-- | libdex/Leb128.c | 65 | ||||
| -rw-r--r-- | libdex/Leb128.h | 127 | ||||
| -rw-r--r-- | libdex/OpCode.h | 653 | ||||
| -rw-r--r-- | libdex/OptInvocation.c | 143 | ||||
| -rw-r--r-- | libdex/OptInvocation.h | 50 | ||||
| -rw-r--r-- | libdex/SysUtil.c | 286 | ||||
| -rw-r--r-- | libdex/SysUtil.h | 72 | ||||
| -rw-r--r-- | libdex/ZipArchive.c | 643 | ||||
| -rw-r--r-- | libdex/ZipArchive.h | 173 | ||||
| -rw-r--r-- | libdex/sha1.c | 514 | ||||
| -rw-r--r-- | libdex/sha1.h | 20 |
28 files changed, 0 insertions, 11160 deletions
diff --git a/libdex/Android.mk b/libdex/Android.mk deleted file mode 100644 index df45f045a..000000000 --- a/libdex/Android.mk +++ /dev/null @@ -1,64 +0,0 @@ -# Copyright (C) 2008 The Android Open Source Project -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -LOCAL_PATH:= $(call my-dir) - -dex_src_files := \ - CmdUtils.c \ - DexCatch.c \ - DexClass.c \ - DexDataMap.c \ - DexFile.c \ - DexInlines.c \ - DexProto.c \ - DexSwapVerify.c \ - InstrUtils.c \ - Leb128.c \ - OptInvocation.c \ - sha1.c \ - SysUtil.c \ - ZipArchive.c - -dex_include_files := \ - dalvik \ - $(JNI_H_INCLUDE) \ - external/zlib \ - external/safe-iop/include - -## -## -## Build the device version of libdex -## -## -ifneq ($(SDK_ONLY),true) # SDK_only doesn't need device version - -include $(CLEAR_VARS) -LOCAL_SRC_FILES := $(dex_src_files) -LOCAL_C_INCLUDES += $(dex_include_files) -LOCAL_MODULE := libdex -include $(BUILD_STATIC_LIBRARY) - -endif # !SDK_ONLY - - -## -## -## Build the host version of libdex -## -## -include $(CLEAR_VARS) -LOCAL_SRC_FILES := $(dex_src_files) -LOCAL_C_INCLUDES += $(dex_include_files) -LOCAL_MODULE := libdex -include $(BUILD_HOST_STATIC_LIBRARY) diff --git a/libdex/CmdUtils.c b/libdex/CmdUtils.c deleted file mode 100644 index ca1054c7f..000000000 --- a/libdex/CmdUtils.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Some utility functions for use with command-line utilities. - */ -#include "DexFile.h" -#include "ZipArchive.h" -#include "CmdUtils.h" - -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <errno.h> - - -/* - * Extract "classes.dex" from archive file. - * - * If "quiet" is set, don't report common errors. - */ -UnzipToFileResult dexUnzipToFile(const char* zipFileName, - const char* outFileName, bool quiet) -{ - UnzipToFileResult result = kUTFRSuccess; - static const char* kFileToExtract = "classes.dex"; - ZipArchive archive; - ZipEntry entry; - bool unlinkOnFailure = false; - int fd = -1; - - if (dexZipOpenArchive(zipFileName, &archive) != 0) { - if (!quiet) { - fprintf(stderr, "Unable to open '%s' as zip archive\n", - zipFileName); - } - result = kUTFRNotZip; - goto bail; - } - - fd = open(outFileName, O_WRONLY | O_CREAT | O_EXCL, 0600); - if (fd < 0) { - fprintf(stderr, "Unable to create output file '%s': %s\n", - outFileName, strerror(errno)); - result = kUTFROutputFileProblem; - goto bail; - } - - unlinkOnFailure = true; - - entry = dexZipFindEntry(&archive, kFileToExtract); - if (entry == NULL) { - if (!quiet) { - fprintf(stderr, "Unable to find '%s' in '%s'\n", - kFileToExtract, zipFileName); - } - result = kUTFRNoClassesDex; - goto bail; - } - - if (!dexZipExtractEntryToFile(&archive, entry, fd)) { - fprintf(stderr, "Extract of '%s' from '%s' failed\n", - kFileToExtract, zipFileName); - result = kUTFRBadZip; - goto bail; - } - -bail: - if (fd >= 0) - close(fd); - if (unlinkOnFailure && result != kUTFRSuccess) - unlink(outFileName); - dexZipCloseArchive(&archive); - return result; -} - -/* - * Map the specified DEX file read-only (possibly after expanding it into a - * temp file from a Jar). Pass in a MemMapping struct to hold the info. - * - * The temp file is deleted after the map succeeds. - * - * This is intended for use by tools (e.g. dexdump) that need to get a - * read-only copy of a DEX file that could be in a number of different states. - * - * If "quiet" is set, don't report common errors. - * - * Returns 0 on success. - */ -UnzipToFileResult dexOpenAndMap(const char* fileName, const char* tempFileName, - MemMapping* pMap, bool quiet) -{ - UnzipToFileResult result = kUTFRSuccess; - int len = strlen(fileName); - char tempName[32]; - bool removeTemp = false; - int fd = -1; - - if (len < 5) { - if (!quiet) { - fprintf(stderr, - "ERROR: filename must end in .dex, .zip, .jar, or .apk\n"); - } - result = kUTFRBadArgs; - goto bail; - } - - if (strcasecmp(fileName + len -3, "dex") != 0) { - if (tempFileName == NULL) { - /* - * Try .zip/.jar/.apk, all of which are Zip archives with - * "classes.dex" inside. We need to extract the compressed - * data to a temp file, the location of which varies. - */ - if (access("/tmp", W_OK) == 0) - sprintf(tempName, "/tmp/dex-temp-%d", getpid()); - else - sprintf(tempName, "/sdcard/dex-temp-%d", getpid()); - - tempFileName = tempName; - } - - result = dexUnzipToFile(fileName, tempName, quiet); - - if (result == kUTFRSuccess) { - //printf("+++ Good unzip to '%s'\n", tempName); - fileName = tempName; - removeTemp = true; - } else if (result == kUTFRNotZip) { - if (!quiet) { - fprintf(stderr, "Not Zip, retrying as DEX\n"); - } - } else { - if (!quiet && result == kUTFRNoClassesDex) { - fprintf(stderr, "Zip has no classes.dex\n"); - } - goto bail; - } - } - - /* - * Pop open the (presumed) DEX file. - */ - fd = open(fileName, O_RDONLY); - if (fd < 0) { - if (!quiet) { - fprintf(stderr, "ERROR: unable to open '%s': %s\n", - fileName, strerror(errno)); - } - goto bail; - } - - if (sysMapFileInShmem(fd, pMap) != 0) { - fprintf(stderr, "ERROR: Unable to map %s\n", fileName); - close(fd); - goto bail; - } - - /* - * Success! Close the file and return with the start/length in pMap. - */ - result = 0; - -bail: - if (fd >= 0) - close(fd); - if (removeTemp) { - if (unlink(tempName) != 0) - fprintf(stderr, "Warning: unable to remove temp '%s'\n", tempName); - } - return result; -} diff --git a/libdex/CmdUtils.h b/libdex/CmdUtils.h deleted file mode 100644 index fa354a9d9..000000000 --- a/libdex/CmdUtils.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Access .dex (Dalvik Executable Format) files. The code here assumes that - * the DEX file has been rewritten (byte-swapped, word-aligned) and that - * the contents can be directly accessed as a collection of C arrays. Please - * see docs/dalvik/dex-format.html for a detailed description. - * - * The structure and field names were chosen to match those in the DEX spec. - * - * It's generally assumed that the DEX file will be stored in shared memory, - * obviating the need to copy code and constant pool entries into newly - * allocated storage. Maintaining local pointers to items in the shared area - * is valid and encouraged. - * - * All memory-mapped structures are 32-bit aligned unless otherwise noted. - */ -#ifndef _LIBDEX_CMDUTILS -#define _LIBDEX_CMDUTILS - -/* encode the result of unzipping to a file */ -typedef enum UnzipToFileResult { - kUTFRSuccess = 0, - kUTFRBadArgs, - kUTFRNotZip, - kUTFRNoClassesDex, - kUTFROutputFileProblem, - kUTFRBadZip, -} UnzipToFileResult; - -/* - * Map the specified DEX file, possibly after expanding it into a temp file - * from a Jar. Pass in a MemMapping struct to hold the info. - * - * This is intended for use by tools (e.g. dexdump) that need to get a - * read-only copy of a DEX file that could be in a number of different states. - * - * If "tempFileName" is NULL, a default value is used. The temp file is - * deleted after the map succeeds. - * - * Returns 0 on success. - */ -UnzipToFileResult dexOpenAndMap(const char* fileName, const char* tempFileName, - MemMapping* pMap, bool quiet); - -/* - * Utility function to open a Zip archive, find "classes.dex", and extract - * it to a file. - */ -UnzipToFileResult dexUnzipToFile(const char* zipFileName, - const char* outFileName, bool quiet); - -#endif /*_LIBDEX_CMDUTILS*/ diff --git a/libdex/DexCatch.c b/libdex/DexCatch.c deleted file mode 100644 index 5eae17a66..000000000 --- a/libdex/DexCatch.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions for dealing with try-catch info. - */ - -#include "DexCatch.h" - -/* Get the first handler offset for the given DexCode. - * It's not 0 because the handlers list is prefixed with its size - * (in entries) as a uleb128. */ -u4 dexGetFirstHandlerOffset(const DexCode* pCode) { - if (pCode->triesSize == 0) { - return 0; - } - - const u1* baseData = dexGetCatchHandlerData(pCode); - const u1* data = baseData; - - readUnsignedLeb128(&data); - - return data - baseData; -} - -/* Get count of handler lists for the given DexCode. */ -u4 dexGetHandlersSize(const DexCode* pCode) { - if (pCode->triesSize == 0) { - return 0; - } - - const u1* data = dexGetCatchHandlerData(pCode); - - return readUnsignedLeb128(&data); -} - -/* Helper for dexFindCatchHandlerOffset(), which does an actual search - * in the tries table. Returns -1 if there is no applicable handler. */ -int dexFindCatchHandlerOffset0(u2 triesSize, const DexTry* pTries, - u4 address) { - // Note: Signed type is important for max and min. - int min = 0; - int max = triesSize - 1; - - while (max >= min) { - int guess = (min + max) >> 1; - const DexTry* pTry = &pTries[guess]; - u4 start = pTry->startAddr; - - if (address < start) { - max = guess - 1; - continue; - } - - u4 end = start + pTry->insnCount; - - if (address >= end) { - min = guess + 1; - continue; - } - - // We have a winner! - return (int) pTry->handlerOff; - } - - // No match. - return -1; -} - -/* Get the handler offset just past the end of the one just iterated over. - * This ends the iteration if it wasn't already. */ -u4 dexCatchIteratorGetEndOffset(DexCatchIterator* pIterator, - const DexCode* pCode) { - while (dexCatchIteratorNext(pIterator) != NULL) /* empty */ ; - - return (u4) (pIterator->pEncodedData - dexGetCatchHandlerData(pCode)); -} diff --git a/libdex/DexCatch.h b/libdex/DexCatch.h deleted file mode 100644 index f928144aa..000000000 --- a/libdex/DexCatch.h +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions for dealing with try-catch info. - */ - -#ifndef _LIBDEX_DEXCATCH -#define _LIBDEX_DEXCATCH - -#include "DexFile.h" -#include "Leb128.h" - -/* - * Catch handler entry, used while iterating over catch_handler_items. - */ -typedef struct DexCatchHandler { - u4 typeIdx; /* type index of the caught exception type */ - u4 address; /* handler address */ -} DexCatchHandler; - -/* Get the first handler offset for the given DexCode. - * It's not 0 because the handlers list is prefixed with its size - * (in entries) as a uleb128. */ -u4 dexGetFirstHandlerOffset(const DexCode* pCode); - -/* Get count of handler lists for the given DexCode. */ -u4 dexGetHandlersSize(const DexCode* pCode); - -/* - * Iterator over catch handler data. This structure should be treated as - * opaque. - */ -typedef struct DexCatchIterator { - const u1* pEncodedData; - bool catchesAll; - u4 countRemaining; - DexCatchHandler handler; -} DexCatchIterator; - -/* Initialize a DexCatchIterator to emptiness. This mostly exists to - * squelch innocuous warnings. */ -DEX_INLINE void dexCatchIteratorClear(DexCatchIterator* pIterator) { - pIterator->pEncodedData = NULL; - pIterator->catchesAll = false; - pIterator->countRemaining = 0; - pIterator->handler.typeIdx = 0; - pIterator->handler.address = 0; -} - -/* Initialize a DexCatchIterator with a direct pointer to encoded handlers. */ -DEX_INLINE void dexCatchIteratorInitToPointer(DexCatchIterator* pIterator, - const u1* pEncodedData) -{ - s4 count = readSignedLeb128(&pEncodedData); - - if (count <= 0) { - pIterator->catchesAll = true; - count = -count; - } else { - pIterator->catchesAll = false; - } - - pIterator->pEncodedData = pEncodedData; - pIterator->countRemaining = count; -} - -/* Initialize a DexCatchIterator to a particular handler offset. */ -DEX_INLINE void dexCatchIteratorInit(DexCatchIterator* pIterator, - const DexCode* pCode, u4 offset) -{ - dexCatchIteratorInitToPointer(pIterator, - dexGetCatchHandlerData(pCode) + offset); -} - -/* Get the next item from a DexCatchIterator. Returns NULL if at end. */ -DEX_INLINE DexCatchHandler* dexCatchIteratorNext(DexCatchIterator* pIterator) { - if (pIterator->countRemaining == 0) { - if (! pIterator->catchesAll) { - return NULL; - } - - pIterator->catchesAll = false; - pIterator->handler.typeIdx = kDexNoIndex; - } else { - u4 typeIdx = readUnsignedLeb128(&pIterator->pEncodedData); - pIterator->handler.typeIdx = typeIdx; - pIterator->countRemaining--; - } - - pIterator->handler.address = readUnsignedLeb128(&pIterator->pEncodedData); - return &pIterator->handler; -} - -/* Get the handler offset just past the end of the one just iterated over. - * This ends the iteration if it wasn't already. */ -u4 dexCatchIteratorGetEndOffset(DexCatchIterator* pIterator, - const DexCode* pCode); - -/* Helper for dexFindCatchHandler(). Do not call directly. */ -int dexFindCatchHandlerOffset0(u2 triesSize, const DexTry* pTries, - u4 address); - -/* Find the handler associated with a given address, if any. - * Initializes the given iterator and returns true if a match is - * found. Returns false if there is no applicable handler. */ -DEX_INLINE bool dexFindCatchHandler(DexCatchIterator *pIterator, - const DexCode* pCode, u4 address) { - u2 triesSize = pCode->triesSize; - int offset = -1; - - // Short-circuit the overwhelmingly common cases. - switch (triesSize) { - case 0: { - break; - } - case 1: { - const DexTry* tries = dexGetTries(pCode); - u4 start = tries[0].startAddr; - - if (address < start) { - break; - } - - u4 end = start + tries[0].insnCount; - - if (address >= end) { - break; - } - - offset = tries[0].handlerOff; - break; - } - default: { - offset = dexFindCatchHandlerOffset0(triesSize, dexGetTries(pCode), - address); - } - } - - if (offset < 0) { - dexCatchIteratorClear(pIterator); // This squelches warnings. - return false; - } else { - dexCatchIteratorInit(pIterator, pCode, offset); - return true; - } -} - -#endif diff --git a/libdex/DexClass.c b/libdex/DexClass.c deleted file mode 100644 index 126813016..000000000 --- a/libdex/DexClass.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions to deal with class definition structures in DEX files - */ - -#include <stdlib.h> -#include <string.h> -#include "DexClass.h" -#include "Leb128.h" - -/* Helper for verification which reads and verifies a given number - * of uleb128 values. */ -static bool verifyUlebs(const u1* pData, const u1* pLimit, u4 count) { - bool okay = true; - u4 i; - - while (okay && (count-- != 0)) { - readAndVerifyUnsignedLeb128(&pData, pLimit, &okay); - } - - return okay; -} - -/* Read and verify the header of a class_data_item. This updates the - * given data pointer to point past the end of the read data and - * returns an "okay" flag (that is, false == failure). */ -bool dexReadAndVerifyClassDataHeader(const u1** pData, const u1* pLimit, - DexClassDataHeader *pHeader) { - if (! verifyUlebs(*pData, pLimit, 4)) { - return false; - } - - dexReadClassDataHeader(pData, pHeader); - return true; -} - -/* Read and verify an encoded_field. This updates the - * given data pointer to point past the end of the read data and - * returns an "okay" flag (that is, false == failure). - * - * The lastIndex value should be set to 0 before the first field in - * a list is read. It is updated as fields are read and used in the - * decode process. - * - * The verification done by this function is of the raw data format - * only; it does not verify that access flags or indices - * are valid. */ -bool dexReadAndVerifyClassDataField(const u1** pData, const u1* pLimit, - DexField* pField, u4* lastIndex) { - if (! verifyUlebs(*pData, pLimit, 2)) { - return false; - } - - dexReadClassDataField(pData, pField, lastIndex); - return true; -} - -/* Read and verify an encoded_method. This updates the - * given data pointer to point past the end of the read data and - * returns an "okay" flag (that is, false == failure). - * - * The lastIndex value should be set to 0 before the first method in - * a list is read. It is updated as fields are read and used in the - * decode process. - * - * The verification done by this function is of the raw data format - * only; it does not verify that access flags, indices, or offsets - * are valid. */ -bool dexReadAndVerifyClassDataMethod(const u1** pData, const u1* pLimit, - DexMethod* pMethod, u4* lastIndex) { - if (! verifyUlebs(*pData, pLimit, 3)) { - return false; - } - - dexReadClassDataMethod(pData, pMethod, lastIndex); - return true; -} - -/* Read, verify, and return an entire class_data_item. This updates - * the given data pointer to point past the end of the read data. This - * function allocates a single chunk of memory for the result, which - * must subsequently be free()d. This function returns NULL if there - * was trouble parsing the data. If this function is passed NULL, it - * returns an initialized empty DexClassData structure. - * - * The verification done by this function is of the raw data format - * only; it does not verify that access flags, indices, or offsets - * are valid. */ -DexClassData* dexReadAndVerifyClassData(const u1** pData, const u1* pLimit) { - DexClassDataHeader header; - u4 lastIndex; - - if (*pData == NULL) { - DexClassData* result = malloc(sizeof(DexClassData)); - memset(result, 0, sizeof(*result)); - return result; - } - - if (! dexReadAndVerifyClassDataHeader(pData, pLimit, &header)) { - return NULL; - } - - size_t resultSize = sizeof(DexClassData) + - (header.staticFieldsSize * sizeof(DexField)) + - (header.instanceFieldsSize * sizeof(DexField)) + - (header.directMethodsSize * sizeof(DexMethod)) + - (header.virtualMethodsSize * sizeof(DexMethod)); - - DexClassData* result = malloc(resultSize); - u1* ptr = ((u1*) result) + sizeof(DexClassData); - bool okay = true; - u4 i; - - if (result == NULL) { - return NULL; - } - - result->header = header; - - if (header.staticFieldsSize != 0) { - result->staticFields = (DexField*) ptr; - ptr += header.staticFieldsSize * sizeof(DexField); - } else { - result->staticFields = NULL; - } - - if (header.instanceFieldsSize != 0) { - result->instanceFields = (DexField*) ptr; - ptr += header.instanceFieldsSize * sizeof(DexField); - } else { - result->instanceFields = NULL; - } - - if (header.directMethodsSize != 0) { - result->directMethods = (DexMethod*) ptr; - ptr += header.directMethodsSize * sizeof(DexMethod); - } else { - result->directMethods = NULL; - } - - if (header.virtualMethodsSize != 0) { - result->virtualMethods = (DexMethod*) ptr; - } else { - result->virtualMethods = NULL; - } - - lastIndex = 0; - for (i = 0; okay && (i < header.staticFieldsSize); i++) { - okay = dexReadAndVerifyClassDataField(pData, pLimit, - &result->staticFields[i], &lastIndex); - } - - lastIndex = 0; - for (i = 0; okay && (i < header.instanceFieldsSize); i++) { - okay = dexReadAndVerifyClassDataField(pData, pLimit, - &result->instanceFields[i], &lastIndex); - } - - lastIndex = 0; - for (i = 0; okay && (i < header.directMethodsSize); i++) { - okay = dexReadAndVerifyClassDataMethod(pData, pLimit, - &result->directMethods[i], &lastIndex); - } - - lastIndex = 0; - for (i = 0; okay && (i < header.virtualMethodsSize); i++) { - okay = dexReadAndVerifyClassDataMethod(pData, pLimit, - &result->virtualMethods[i], &lastIndex); - } - - if (! okay) { - free(result); - return NULL; - } - - return result; -} diff --git a/libdex/DexClass.h b/libdex/DexClass.h deleted file mode 100644 index ce41e8bb3..000000000 --- a/libdex/DexClass.h +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions to deal with class definition structures in DEX files - */ - -#ifndef _LIBDEX_DEXCLASS -#define _LIBDEX_DEXCLASS - -#include "DexFile.h" -#include "Leb128.h" - -/* expanded form of a class_data_item header */ -typedef struct DexClassDataHeader { - u4 staticFieldsSize; - u4 instanceFieldsSize; - u4 directMethodsSize; - u4 virtualMethodsSize; -} DexClassDataHeader; - -/* expanded form of encoded_field */ -typedef struct DexField { - u4 fieldIdx; /* index to a field_id_item */ - u4 accessFlags; -} DexField; - -/* expanded form of encoded_method */ -typedef struct DexMethod { - u4 methodIdx; /* index to a method_id_item */ - u4 accessFlags; - u4 codeOff; /* file offset to a code_item */ -} DexMethod; - -/* expanded form of class_data_item. Note: If a particular item is - * absent (e.g., no static fields), then the corresponding pointer - * is set to NULL. */ -typedef struct DexClassData { - DexClassDataHeader header; - DexField* staticFields; - DexField* instanceFields; - DexMethod* directMethods; - DexMethod* virtualMethods; -} DexClassData; - -/* Read and verify the header of a class_data_item. This updates the - * given data pointer to point past the end of the read data and - * returns an "okay" flag (that is, false == failure). */ -bool dexReadAndVerifyClassDataHeader(const u1** pData, const u1* pLimit, - DexClassDataHeader *pHeader); - -/* Read and verify an encoded_field. This updates the - * given data pointer to point past the end of the read data and - * returns an "okay" flag (that is, false == failure). - * - * The lastIndex value should be set to 0 before the first field in - * a list is read. It is updated as fields are read and used in the - * decode process. - * - * The verification done by this function is of the raw data format - * only; it does not verify that access flags or indices - * are valid. */ -bool dexReadAndVerifyClassDataField(const u1** pData, const u1* pLimit, - DexField* pField, u4* lastIndex); - -/* Read and verify an encoded_method. This updates the - * given data pointer to point past the end of the read data and - * returns an "okay" flag (that is, false == failure). - * - * The lastIndex value should be set to 0 before the first method in - * a list is read. It is updated as fields are read and used in the - * decode process. - * - * The verification done by this function is of the raw data format - * only; it does not verify that access flags, indices, or offsets - * are valid. */ -bool dexReadAndVerifyClassDataMethod(const u1** pData, const u1* pLimit, - DexMethod* pMethod, u4* lastIndex); - -/* Read, verify, and return an entire class_data_item. This updates - * the given data pointer to point past the end of the read data. This - * function allocates a single chunk of memory for the result, which - * must subsequently be free()d. This function returns NULL if there - * was trouble parsing the data. If this function is passed NULL, it - * returns an initialized empty DexClassData structure. - * - * The verification done by this function is of the raw data format - * only; it does not verify that access flags, indices, or offsets - * are valid. */ -DexClassData* dexReadAndVerifyClassData(const u1** pData, const u1* pLimit); - -/* - * Get the DexCode for a DexMethod. Returns NULL if the class is native - * or abstract. - */ -DEX_INLINE const DexCode* dexGetCode(const DexFile* pDexFile, - const DexMethod* pDexMethod) -{ - if (pDexMethod->codeOff == 0) - return NULL; - return (const DexCode*) (pDexFile->baseAddr + pDexMethod->codeOff); -} - - -/* Read the header of a class_data_item without verification. This - * updates the given data pointer to point past the end of the read - * data. */ -DEX_INLINE void dexReadClassDataHeader(const u1** pData, - DexClassDataHeader *pHeader) { - pHeader->staticFieldsSize = readUnsignedLeb128(pData); - pHeader->instanceFieldsSize = readUnsignedLeb128(pData); - pHeader->directMethodsSize = readUnsignedLeb128(pData); - pHeader->virtualMethodsSize = readUnsignedLeb128(pData); -} - -/* Read an encoded_field without verification. This updates the - * given data pointer to point past the end of the read data. - * - * The lastIndex value should be set to 0 before the first field in - * a list is read. It is updated as fields are read and used in the - * decode process. - */ -DEX_INLINE void dexReadClassDataField(const u1** pData, DexField* pField, - u4* lastIndex) { - u4 index = *lastIndex + readUnsignedLeb128(pData); - - pField->accessFlags = readUnsignedLeb128(pData); - pField->fieldIdx = index; - *lastIndex = index; -} - -/* Read an encoded_method without verification. This updates the - * given data pointer to point past the end of the read data. - * - * The lastIndex value should be set to 0 before the first method in - * a list is read. It is updated as fields are read and used in the - * decode process. - */ -DEX_INLINE void dexReadClassDataMethod(const u1** pData, DexMethod* pMethod, - u4* lastIndex) { - u4 index = *lastIndex + readUnsignedLeb128(pData); - - pMethod->accessFlags = readUnsignedLeb128(pData); - pMethod->codeOff = readUnsignedLeb128(pData); - pMethod->methodIdx = index; - *lastIndex = index; -} - -#endif diff --git a/libdex/DexDataMap.c b/libdex/DexDataMap.c deleted file mode 100644 index a9d429e18..000000000 --- a/libdex/DexDataMap.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Verification-time map of data section items - */ - -#include "DexDataMap.h" -#include <safe_iop.h> -#include <stdlib.h> - -/* - * Allocate and initialize a DexDataMap. Returns NULL on failure. - */ -DexDataMap* dexDataMapAlloc(u4 maxCount) { - /* - * Allocate a single chunk for the DexDataMap per se as well as the - * two arrays. - */ - size_t size = 0; - DexDataMap* map = NULL; - - /* - * Avoiding pulling in safe_iop for safe_iopf. - */ - if (!safe_mul(&size, maxCount, sizeof(u4) + sizeof(u2)) || - !safe_add(&size, size, sizeof(DexDataMap))) { - return NULL; - } - - map = malloc(size); - - if (map == NULL) { - return NULL; - } - - map->count = 0; - map->max = maxCount; - map->offsets = (u4*) (map + 1); - map->types = (u2*) (map->offsets + maxCount); - - return map; -} - -/* - * Free a DexDataMap. - */ -void dexDataMapFree(DexDataMap* map) { - /* - * Since everything got allocated together, everything can be freed - * in one fell swoop. Also, free(NULL) is a nop (per spec), so we - * don't have to worry about an explicit test for that. - */ - free(map); -} - -/* - * Add a new element to the map. The offset must be greater than the - * all previously added offsets. - */ -void dexDataMapAdd(DexDataMap* map, u4 offset, u2 type) { - assert(map != NULL); - assert(map->count < map->max); - - if ((map->count != 0) && - (map->offsets[map->count - 1] >= offset)) { - LOGE("Out-of-order data map offset: 0x%x then 0x%x\n", - map->offsets[map->count - 1], offset); - return; - } - - map->offsets[map->count] = offset; - map->types[map->count] = type; - map->count++; -} - -/* - * Get the type associated with the given offset. This returns -1 if - * there is no entry for the given offset. - */ -int dexDataMapGet(DexDataMap* map, u4 offset) { - assert(map != NULL); - - // Note: Signed type is important for max and min. - int min = 0; - int max = map->count - 1; - u4* offsets = map->offsets; - - while (max >= min) { - int guessIdx = (min + max) >> 1; - u4 guess = offsets[guessIdx]; - - if (offset < guess) { - max = guessIdx - 1; - } else if (offset > guess) { - min = guessIdx + 1; - } else { - // We have a winner! - return map->types[guessIdx]; - } - } - - // No match. - return -1; -} - -/* - * Verify that there is an entry in the map, mapping the given offset to - * the given type. This will return true if such an entry exists and - * return false as well as log an error if not. - */ -bool dexDataMapVerify(DexDataMap* map, u4 offset, u2 type) { - int found = dexDataMapGet(map, offset); - - if (found == type) { - return true; - } - - if (found < 0) { - LOGE("No data map entry found @ 0x%x; expected %x\n", - offset, type); - } else { - LOGE("Unexpected data map entry @ 0x%x: expected %x, found %x\n", - offset, type, found); - } - - return false; -} diff --git a/libdex/DexDataMap.h b/libdex/DexDataMap.h deleted file mode 100644 index fa556d5aa..000000000 --- a/libdex/DexDataMap.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Verification-time map of data section items - */ - -#ifndef _LIBDEX_DEXDATAMAP -#define _LIBDEX_DEXDATAMAP - -#include "DexFile.h" - -typedef struct DexDataMap { - u4 count; /* number of items currently in the map */ - u4 max; /* maximum number of items that may be held */ - u4* offsets; /* array of item offsets */ - u2* types; /* corresponding array of item types */ -} DexDataMap; - -/* - * Allocate and initialize a DexDataMap. Returns NULL on failure. - */ -DexDataMap* dexDataMapAlloc(u4 maxCount); - -/* - * Free a DexDataMap. - */ -void dexDataMapFree(DexDataMap* map); - -/* - * Add a new element to the map. The offset must be greater than the - * all previously added offsets. - */ -void dexDataMapAdd(DexDataMap* map, u4 offset, u2 type); - -/* - * Get the type associated with the given offset. This returns -1 if - * there is no entry for the given offset. - */ -int dexDataMapGet(DexDataMap* map, u4 offset); - -/* - * Verify that there is an entry in the map, mapping the given offset to - * the given type. This will return true if such an entry exists and - * return false as well as log an error if not. - */ -bool dexDataMapVerify(DexDataMap* map, u4 offset, u2 type); - -/* - * Like dexDataMapVerify(), but also accept a 0 offset as valid. - */ -DEX_INLINE bool dexDataMapVerify0Ok(DexDataMap* map, u4 offset, u2 type) { - if (offset == 0) { - return true; - } - - return dexDataMapVerify(map, offset, type); -} - -#endif /*_LIBDEX_DEXDATAMAP*/ diff --git a/libdex/DexFile.c b/libdex/DexFile.c deleted file mode 100644 index 2639d7bdb..000000000 --- a/libdex/DexFile.c +++ /dev/null @@ -1,1183 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Access the contents of a .dex file. - */ - -#include "DexFile.h" -#include "DexProto.h" -#include "Leb128.h" -#include "sha1.h" -#include "ZipArchive.h" - -#include <zlib.h> - -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <fcntl.h> -#include <errno.h> - -/* - * Verifying checksums is good, but it slows things down and causes us to - * touch every page. In the "optimized" world, it doesn't work at all, - * because we rewrite the contents. - */ -static const bool kVerifyChecksum = false; -static const bool kVerifySignature = false; - - -/* Compare two '\0'-terminated modified UTF-8 strings, using Unicode - * code point values for comparison. This treats different encodings - * for the same code point as equivalent, except that only a real '\0' - * byte is considered the string terminator. The return value is as - * for strcmp(). */ -int dexUtf8Cmp(const char* s1, const char* s2) { - for (;;) { - if (*s1 == '\0') { - if (*s2 == '\0') { - return 0; - } - return -1; - } else if (*s2 == '\0') { - return 1; - } - - int utf1 = dexGetUtf16FromUtf8(&s1); - int utf2 = dexGetUtf16FromUtf8(&s2); - int diff = utf1 - utf2; - - if (diff != 0) { - return diff; - } - } -} - -/* for dexIsValidMemberNameUtf8(), a bit vector indicating valid low ascii */ -u4 DEX_MEMBER_VALID_LOW_ASCII[4] = { - 0x00000000, // 00..1f low control characters; nothing valid - 0x03ff2010, // 20..3f digits and symbols; valid: '0'..'9', '$', '-' - 0x87fffffe, // 40..5f uppercase etc.; valid: 'A'..'Z', '_' - 0x07fffffe // 60..7f lowercase etc.; valid: 'a'..'z' -}; - -/* Helper for dexIsValidMemberNameUtf8(); do not call directly. */ -bool dexIsValidMemberNameUtf8_0(const char** pUtf8Ptr) { - /* - * It's a multibyte encoded character. Decode it and analyze. We - * accept anything that isn't (a) an improperly encoded low value, - * (b) an improper surrogate pair, (c) an encoded '\0', (d) a high - * control character, or (e) a high space, layout, or special - * character (U+00a0, U+2000..U+200f, U+2028..U+202f, - * U+fff0..U+ffff). - */ - - u2 utf16 = dexGetUtf16FromUtf8(pUtf8Ptr); - - // Perform follow-up tests based on the high 8 bits. - switch (utf16 >> 8) { - case 0x00: { - // It's only valid if it's above the ISO-8859-1 high space (0xa0). - return (utf16 > 0x00a0); - } - case 0xd8: - case 0xd9: - case 0xda: - case 0xdb: { - /* - * It's a leading surrogate. Check to see that a trailing - * surrogate follows. - */ - utf16 = dexGetUtf16FromUtf8(pUtf8Ptr); - return (utf16 >= 0xdc00) && (utf16 <= 0xdfff); - } - case 0xdc: - case 0xdd: - case 0xde: - case 0xdf: { - // It's a trailing surrogate, which is not valid at this point. - return false; - } - case 0x20: - case 0xff: { - // It's in the range that has spaces, controls, and specials. - switch (utf16 & 0xfff8) { - case 0x2000: - case 0x2008: - case 0x2028: - case 0xfff0: - case 0xfff8: { - return false; - } - } - break; - } - } - - return true; -} - -/* Return whether the given string is a valid field or method name. */ -bool dexIsValidMemberName(const char* s) { - bool angleName = false; - - switch (*s) { - case '\0': { - // The empty string is not a valid name. - return false; - } - case '<': { - /* - * '<' is allowed only at the start of a name, and if present, - * means that the name must end with '>'. - */ - angleName = true; - s++; - break; - } - } - - for (;;) { - switch (*s) { - case '\0': { - return !angleName; - } - case '>': { - return angleName && s[1] == '\0'; - } - } - if (!dexIsValidMemberNameUtf8(&s)) { - return false; - } - } -} - -/* Return whether the given string is a valid type descriptor. */ -bool dexIsValidTypeDescriptor(const char* s) { - int arrayCount = 0; - - while (*s == '[') { - arrayCount++; - s++; - } - - if (arrayCount > 255) { - // Arrays may have no more than 255 dimensions. - return false; - } - - switch (*(s++)) { - case 'B': - case 'C': - case 'D': - case 'F': - case 'I': - case 'J': - case 'S': - case 'Z': { - // These are all single-character descriptors for primitive types. - return (*s == '\0'); - } - case 'V': { - // You can't have an array of void. - return (arrayCount == 0) && (*s == '\0'); - } - case 'L': { - // Break out and continue below. - break; - } - default: { - // Oddball descriptor character. - return false; - } - } - - // We just consumed the 'L' that introduces a class name. - - bool slashOrFirst = true; // first character or just encountered a slash - for (;;) { - u1 c = (u1) *s; - switch (c) { - case '\0': { - // Premature end. - return false; - } - case ';': { - /* - * Make sure that this is the end of the string and that - * it doesn't end with an empty component (including the - * degenerate case of "L;"). - */ - return (s[1] == '\0') && !slashOrFirst; - } - case '/': { - if (slashOrFirst) { - // Slash at start or two slashes in a row. - return false; - } - slashOrFirst = true; - s++; - break; - } - default: { - if (!dexIsValidMemberNameUtf8(&s)) { - return false; - } - slashOrFirst = false; - break; - } - } - } -} - -/* Return whether the given string is a valid reference descriptor. This - * is true if dexIsValidTypeDescriptor() returns true and the descriptor - * is for a class or array and not a primitive type. */ -bool dexIsReferenceDescriptor(const char* s) { - if (!dexIsValidTypeDescriptor(s)) { - return false; - } - - return (s[0] == 'L') || (s[0] == '['); -} - -/* Return whether the given string is a valid class descriptor. This - * is true if dexIsValidTypeDescriptor() returns true and the descriptor - * is for a class and not an array or primitive type. */ -bool dexIsClassDescriptor(const char* s) { - if (!dexIsValidTypeDescriptor(s)) { - return false; - } - - return s[0] == 'L'; -} - -/* Return whether the given string is a valid field type descriptor. This - * is true if dexIsValidTypeDescriptor() returns true and the descriptor - * is for anything but "void". */ -bool dexIsFieldDescriptor(const char* s) { - if (!dexIsValidTypeDescriptor(s)) { - return false; - } - - return s[0] != 'V'; -} - -/* Return the UTF-8 encoded string with the specified string_id index, - * also filling in the UTF-16 size (number of 16-bit code points).*/ -const char* dexStringAndSizeById(const DexFile* pDexFile, u4 idx, - u4* utf16Size) { - const DexStringId* pStringId = dexGetStringId(pDexFile, idx); - const u1* ptr = pDexFile->baseAddr + pStringId->stringDataOff; - - *utf16Size = readUnsignedLeb128(&ptr); - return (const char*) ptr; -} - -/* - * Format an SHA-1 digest for printing. tmpBuf must be able to hold at - * least kSHA1DigestOutputLen bytes. - */ -const char* dvmSHA1DigestToStr(const unsigned char digest[], char* tmpBuf); - -/* - * Compute a SHA-1 digest on a range of bytes. - */ -static void dexComputeSHA1Digest(const unsigned char* data, size_t length, - unsigned char digest[]) -{ - SHA1_CTX context; - SHA1Init(&context); - SHA1Update(&context, data, length); - SHA1Final(digest, &context); -} - -/* - * Format the SHA-1 digest into the buffer, which must be able to hold at - * least kSHA1DigestOutputLen bytes. Returns a pointer to the buffer, - */ -static const char* dexSHA1DigestToStr(const unsigned char digest[],char* tmpBuf) -{ - static const char hexDigit[] = "0123456789abcdef"; - char* cp; - int i; - - cp = tmpBuf; - for (i = 0; i < kSHA1DigestLen; i++) { - *cp++ = hexDigit[digest[i] >> 4]; - *cp++ = hexDigit[digest[i] & 0x0f]; - } - *cp++ = '\0'; - - assert(cp == tmpBuf + kSHA1DigestOutputLen); - - return tmpBuf; -} - -/* - * Compute a hash code on a UTF-8 string, for use with internal hash tables. - * - * This may or may not be compatible with UTF-8 hash functions used inside - * the Dalvik VM. - * - * The basic "multiply by 31 and add" approach does better on class names - * than most other things tried (e.g. adler32). - */ -static u4 classDescriptorHash(const char* str) -{ - u4 hash = 1; - - while (*str != '\0') - hash = hash * 31 + *str++; - - return hash; -} - -/* - * Add an entry to the class lookup table. We hash the string and probe - * until we find an open slot. - */ -static void classLookupAdd(DexFile* pDexFile, DexClassLookup* pLookup, - int stringOff, int classDefOff, int* pNumProbes) -{ - const char* classDescriptor = - (const char*) (pDexFile->baseAddr + stringOff); - const DexClassDef* pClassDef = - (const DexClassDef*) (pDexFile->baseAddr + classDefOff); - u4 hash = classDescriptorHash(classDescriptor); - int mask = pLookup->numEntries-1; - int idx = hash & mask; - - /* - * Find the first empty slot. We oversized the table, so this is - * guaranteed to finish. - */ - int probes = 0; - while (pLookup->table[idx].classDescriptorOffset != 0) { - idx = (idx + 1) & mask; - probes++; - } - //if (probes > 1) - // LOGW("classLookupAdd: probes=%d\n", probes); - - pLookup->table[idx].classDescriptorHash = hash; - pLookup->table[idx].classDescriptorOffset = stringOff; - pLookup->table[idx].classDefOffset = classDefOff; - *pNumProbes = probes; -} - -/* - * Round up to the next highest power of 2. - * - * Found on http://graphics.stanford.edu/~seander/bithacks.html. - */ -u4 dexRoundUpPower2(u4 val) -{ - val--; - val |= val >> 1; - val |= val >> 2; - val |= val >> 4; - val |= val >> 8; - val |= val >> 16; - val++; - - return val; -} - -/* - * Create the class lookup hash table. - * - * Returns newly-allocated storage. - */ -DexClassLookup* dexCreateClassLookup(DexFile* pDexFile) -{ - DexClassLookup* pLookup; - int allocSize; - int i, numEntries; - int numProbes, totalProbes, maxProbes; - - numProbes = totalProbes = maxProbes = 0; - - assert(pDexFile != NULL); - - /* - * Using a factor of 3 results in far less probing than a factor of 2, - * but almost doubles the flash storage requirements for the bootstrap - * DEX files. The overall impact on class loading performance seems - * to be minor. We could probably get some performance improvement by - * using a secondary hash. - */ - numEntries = dexRoundUpPower2(pDexFile->pHeader->classDefsSize * 2); - allocSize = offsetof(DexClassLookup, table) - + numEntries * sizeof(pLookup->table[0]); - - pLookup = (DexClassLookup*) calloc(1, allocSize); - if (pLookup == NULL) - return NULL; - pLookup->size = allocSize; - pLookup->numEntries = numEntries; - - for (i = 0; i < (int)pDexFile->pHeader->classDefsSize; i++) { - const DexClassDef* pClassDef; - const char* pString; - - pClassDef = dexGetClassDef(pDexFile, i); - pString = dexStringByTypeIdx(pDexFile, pClassDef->classIdx); - - classLookupAdd(pDexFile, pLookup, - (u1*)pString - pDexFile->baseAddr, - (u1*)pClassDef - pDexFile->baseAddr, &numProbes); - - if (numProbes > maxProbes) - maxProbes = numProbes; - totalProbes += numProbes; - } - - LOGV("Class lookup: classes=%d slots=%d (%d%% occ) alloc=%d" - " total=%d max=%d\n", - pDexFile->pHeader->classDefsSize, numEntries, - (100 * pDexFile->pHeader->classDefsSize) / numEntries, - allocSize, totalProbes, maxProbes); - - return pLookup; -} - - -/* - * Set up the basic raw data pointers of a DexFile. This function isn't - * meant for general use. - */ -void dexFileSetupBasicPointers(DexFile* pDexFile, const u1* data) { - DexHeader *pHeader = (DexHeader*) data; - - pDexFile->baseAddr = data; - pDexFile->pHeader = pHeader; - pDexFile->pStringIds = (const DexStringId*) (data + pHeader->stringIdsOff); - pDexFile->pTypeIds = (const DexTypeId*) (data + pHeader->typeIdsOff); - pDexFile->pFieldIds = (const DexFieldId*) (data + pHeader->fieldIdsOff); - pDexFile->pMethodIds = (const DexMethodId*) (data + pHeader->methodIdsOff); - pDexFile->pProtoIds = (const DexProtoId*) (data + pHeader->protoIdsOff); - pDexFile->pClassDefs = (const DexClassDef*) (data + pHeader->classDefsOff); - pDexFile->pLinkData = (const DexLink*) (data + pHeader->linkOff); -} - - -/* - * Parse out an index map entry, advancing "*pData" and reducing "*pSize". - */ -static bool parseIndexMapEntry(const u1** pData, u4* pSize, bool expanding, - u4* pFullCount, u4* pReducedCount, const u2** pMap) -{ - const u4* wordPtr = (const u4*) *pData; - u4 size = *pSize; - u4 mapCount; - - if (expanding) { - if (size < 4) - return false; - mapCount = *pReducedCount = *wordPtr++; - *pFullCount = (u4) -1; - size -= sizeof(u4); - } else { - if (size < 8) - return false; - mapCount = *pFullCount = *wordPtr++; - *pReducedCount = *wordPtr++; - size -= sizeof(u4) * 2; - } - - u4 mapSize = mapCount * sizeof(u2); - - if (size < mapSize) - return false; - *pMap = (const u2*) wordPtr; - size -= mapSize; - - /* advance the pointer */ - const u1* ptr = (const u1*) wordPtr; - ptr += (mapSize + 3) & ~0x3; - - /* update pass-by-reference values */ - *pData = (const u1*) ptr; - *pSize = size; - - return true; -} - -/* - * Set up some pointers into the mapped data. - * - * See analysis/ReduceConstants.c for the data layout description. - */ -static bool parseIndexMap(DexFile* pDexFile, const u1* data, u4 size, - bool expanding) -{ - if (!parseIndexMapEntry(&data, &size, expanding, - &pDexFile->indexMap.classFullCount, - &pDexFile->indexMap.classReducedCount, - &pDexFile->indexMap.classMap)) - { - return false; - } - - if (!parseIndexMapEntry(&data, &size, expanding, - &pDexFile->indexMap.methodFullCount, - &pDexFile->indexMap.methodReducedCount, - &pDexFile->indexMap.methodMap)) - { - return false; - } - - if (!parseIndexMapEntry(&data, &size, expanding, - &pDexFile->indexMap.fieldFullCount, - &pDexFile->indexMap.fieldReducedCount, - &pDexFile->indexMap.fieldMap)) - { - return false; - } - - if (!parseIndexMapEntry(&data, &size, expanding, - &pDexFile->indexMap.stringFullCount, - &pDexFile->indexMap.stringReducedCount, - &pDexFile->indexMap.stringMap)) - { - return false; - } - - if (expanding) { - /* - * The map includes the "reduced" counts; pull the original counts - * out of the DexFile so that code has a consistent source. - */ - assert(pDexFile->indexMap.classFullCount == (u4) -1); - assert(pDexFile->indexMap.methodFullCount == (u4) -1); - assert(pDexFile->indexMap.fieldFullCount == (u4) -1); - assert(pDexFile->indexMap.stringFullCount == (u4) -1); - -#if 0 // TODO: not available yet -- do later or just skip this - pDexFile->indexMap.classFullCount = - pDexFile->pHeader->typeIdsSize; - pDexFile->indexMap.methodFullCount = - pDexFile->pHeader->methodIdsSize; - pDexFile->indexMap.fieldFullCount = - pDexFile->pHeader->fieldIdsSize; - pDexFile->indexMap.stringFullCount = - pDexFile->pHeader->stringIdsSize; -#endif - } - - LOGI("Class : %u %u %u\n", - pDexFile->indexMap.classFullCount, - pDexFile->indexMap.classReducedCount, - pDexFile->indexMap.classMap[0]); - LOGI("Method: %u %u %u\n", - pDexFile->indexMap.methodFullCount, - pDexFile->indexMap.methodReducedCount, - pDexFile->indexMap.methodMap[0]); - LOGI("Field : %u %u %u\n", - pDexFile->indexMap.fieldFullCount, - pDexFile->indexMap.fieldReducedCount, - pDexFile->indexMap.fieldMap[0]); - LOGI("String: %u %u %u\n", - pDexFile->indexMap.stringFullCount, - pDexFile->indexMap.stringReducedCount, - pDexFile->indexMap.stringMap[0]); - - return true; -} - -/* - * Parse some auxillary data tables. - * - * v1.0 wrote a zero in the first 32 bits, followed by the DexClassLookup - * table. Subsequent versions switched to the "chunk" format. - */ -static bool parseAuxData(const u1* data, DexFile* pDexFile) -{ - const u4* pAux = (const u4*) (data + pDexFile->pOptHeader->auxOffset); - u4 indexMapType = 0; - - /* v1.0 format? */ - if (*pAux == 0) { - LOGV("+++ found OLD dex format\n"); - pDexFile->pClassLookup = (const DexClassLookup*) (pAux+1); - return true; - } - LOGV("+++ found NEW dex format\n"); - - /* process chunks until we see the end marker */ - while (*pAux != kDexChunkEnd) { - u4 size = *(pAux+1); - u1* data = (u1*) (pAux + 2); - - switch (*pAux) { - case kDexChunkClassLookup: - pDexFile->pClassLookup = (const DexClassLookup*) data; - break; - case kDexChunkReducingIndexMap: - LOGI("+++ found reducing index map, size=%u\n", size); - if (!parseIndexMap(pDexFile, data, size, false)) { - LOGE("Failed parsing reducing index map\n"); - return false; - } - indexMapType = *pAux; - break; - case kDexChunkExpandingIndexMap: - LOGI("+++ found expanding index map, size=%u\n", size); - if (!parseIndexMap(pDexFile, data, size, true)) { - LOGE("Failed parsing expanding index map\n"); - return false; - } - indexMapType = *pAux; - break; - default: - LOGI("Unknown chunk 0x%08x (%c%c%c%c), size=%d in aux data area\n", - *pAux, - (char) ((*pAux) >> 24), (char) ((*pAux) >> 16), - (char) ((*pAux) >> 8), (char) (*pAux), - size); - break; - } - - /* - * Advance pointer, padding to 64-bit boundary. The extra "+8" is - * for the type/size header. - */ - size = (size + 8 + 7) & ~7; - pAux += size / sizeof(u4); - } - -#if 0 // TODO: propagate expected map type from the VM through the API - /* - * If we're configured to expect an index map, and we don't find one, - * reject this DEX so we'll regenerate it. Also, if we found an - * "expanding" map but we're not configured to use it, we have to fail - * because the constants aren't usable without translation. - */ - if (indexMapType != expectedIndexMapType) { - LOGW("Incompatible index map configuration: found 0x%04x, need %d\n", - indexMapType, DVM_REDUCE_CONSTANTS); - return false; - } -#endif - - return true; -} - -/* - * Parse an optimized or unoptimized .dex file sitting in memory. This is - * called after the byte-ordering and structure alignment has been fixed up. - * - * On success, return a newly-allocated DexFile. - */ -DexFile* dexFileParse(const u1* data, size_t length, int flags) -{ - DexFile* pDexFile = NULL; - const DexHeader* pHeader; - const u1* magic; - int result = -1; - - if (length < sizeof(DexHeader)) { - LOGE("too short to be a valid .dex\n"); - goto bail; /* bad file format */ - } - - pDexFile = (DexFile*) malloc(sizeof(DexFile)); - if (pDexFile == NULL) - goto bail; /* alloc failure */ - memset(pDexFile, 0, sizeof(DexFile)); - - /* - * Peel off the optimized header. - */ - if (memcmp(data, DEX_OPT_MAGIC, 4) == 0) { - magic = data; - if (memcmp(magic+4, DEX_OPT_MAGIC_VERS, 4) != 0) { - LOGE("bad opt version (0x%02x %02x %02x %02x)\n", - magic[4], magic[5], magic[6], magic[7]); - goto bail; - } - - pDexFile->pOptHeader = (const DexOptHeader*) data; - LOGV("Good opt header, DEX offset is %d, flags=0x%02x\n", - pDexFile->pOptHeader->dexOffset, pDexFile->pOptHeader->flags); - - /* locate some auxillary data tables */ - if (!parseAuxData(data, pDexFile)) - goto bail; - - /* ignore the opt header and appended data from here on out */ - data += pDexFile->pOptHeader->dexOffset; - length -= pDexFile->pOptHeader->dexOffset; - if (pDexFile->pOptHeader->dexLength > length) { - LOGE("File truncated? stored len=%d, rem len=%d\n", - pDexFile->pOptHeader->dexLength, (int) length); - goto bail; - } - length = pDexFile->pOptHeader->dexLength; - } - - dexFileSetupBasicPointers(pDexFile, data); - pHeader = pDexFile->pHeader; - - magic = pHeader->magic; - if (memcmp(magic, DEX_MAGIC, 4) != 0) { - /* not expected */ - LOGE("bad magic number (0x%02x %02x %02x %02x)\n", - magic[0], magic[1], magic[2], magic[3]); - goto bail; - } - if (memcmp(magic+4, DEX_MAGIC_VERS, 4) != 0) { - LOGE("bad dex version (0x%02x %02x %02x %02x)\n", - magic[4], magic[5], magic[6], magic[7]); - goto bail; - } - - /* - * Verify the checksum. This is reasonably quick, but does require - * touching every byte in the DEX file. The checksum changes after - * byte-swapping and DEX optimization. - */ - if (flags & kDexParseVerifyChecksum) { - u4 adler = dexComputeChecksum(pHeader); - if (adler != pHeader->checksum) { - LOGE("ERROR: bad checksum (%08x vs %08x)\n", - adler, pHeader->checksum); - if (!(flags & kDexParseContinueOnError)) - goto bail; - } else { - LOGV("+++ adler32 checksum (%08x) verified\n", adler); - } - } - - /* - * Verify the SHA-1 digest. (Normally we don't want to do this -- - * the digest is used to uniquely identify a DEX file, and can't be - * computed post-optimization.) - * - * The digest will be invalid after byte swapping and DEX optimization. - */ - if (kVerifySignature) { - unsigned char sha1Digest[kSHA1DigestLen]; - const int nonSum = sizeof(pHeader->magic) + sizeof(pHeader->checksum) + - kSHA1DigestLen; - - dexComputeSHA1Digest(data + nonSum, length - nonSum, sha1Digest); - if (memcmp(sha1Digest, pHeader->signature, kSHA1DigestLen) != 0) { - char tmpBuf1[kSHA1DigestOutputLen]; - char tmpBuf2[kSHA1DigestOutputLen]; - LOGE("ERROR: bad SHA1 digest (%s vs %s)\n", - dexSHA1DigestToStr(sha1Digest, tmpBuf1), - dexSHA1DigestToStr(pHeader->signature, tmpBuf2)); - if (!(flags & kDexParseContinueOnError)) - goto bail; - } else { - LOGV("+++ sha1 digest verified\n"); - } - } - - if (pHeader->fileSize != length) { - LOGE("ERROR: stored file size (%d) != expected (%d)\n", - (int) pHeader->fileSize, (int) length); - if (!(flags & kDexParseContinueOnError)) - goto bail; - } - - if (pHeader->classDefsSize == 0) { - LOGE("ERROR: DEX file has no classes in it, failing\n"); - goto bail; - } - - /* - * Success! - */ - result = 0; - -bail: - if (result != 0 && pDexFile != NULL) { - dexFileFree(pDexFile); - pDexFile = NULL; - } - return pDexFile; -} - -/* - * Free up the DexFile and any associated data structures. - * - * Note we may be called with a partially-initialized DexFile. - */ -void dexFileFree(DexFile* pDexFile) -{ - if (pDexFile == NULL) - return; - - free(pDexFile); -} - -/* - * Look up a class definition entry by descriptor. - * - * "descriptor" should look like "Landroid/debug/Stuff;". - */ -const DexClassDef* dexFindClass(const DexFile* pDexFile, - const char* descriptor) -{ - const DexClassLookup* pLookup = pDexFile->pClassLookup; - u4 hash; - int idx, mask; - - hash = classDescriptorHash(descriptor); - mask = pLookup->numEntries - 1; - idx = hash & mask; - - /* - * Search until we find a matching entry or an empty slot. - */ - while (true) { - int offset; - - offset = pLookup->table[idx].classDescriptorOffset; - if (offset == 0) - return NULL; - - if (pLookup->table[idx].classDescriptorHash == hash) { - const char* str; - - str = (const char*) (pDexFile->baseAddr + offset); - if (strcmp(str, descriptor) == 0) { - return (const DexClassDef*) - (pDexFile->baseAddr + pLookup->table[idx].classDefOffset); - } - } - - idx = (idx + 1) & mask; - } -} - - -/* - * Compute the DEX file checksum for a memory-mapped DEX file. - */ -u4 dexComputeChecksum(const DexHeader* pHeader) -{ - const u1* start = (const u1*) pHeader; - - uLong adler = adler32(0L, Z_NULL, 0); - const int nonSum = sizeof(pHeader->magic) + sizeof(pHeader->checksum); - - return (u4) adler32(adler, start + nonSum, pHeader->fileSize - nonSum); -} - - -/* - * =========================================================================== - * Debug info - * =========================================================================== - */ - -/* - * Decode the arguments in a method signature, which looks something - * like "(ID[Ljava/lang/String;)V". - * - * Returns the type signature letter for the next argument, or ')' if - * there are no more args. Advances "pSig" to point to the character - * after the one returned. - */ -static char decodeSignature(const char** pSig) -{ - const char* sig = *pSig; - - if (*sig == '(') - sig++; - - if (*sig == 'L') { - /* object ref */ - while (*++sig != ';') - ; - *pSig = sig+1; - return 'L'; - } - if (*sig == '[') { - /* array; advance past array type */ - while (*++sig == '[') - ; - if (*sig == 'L') { - while (*++sig != ';') - ; - } - *pSig = sig+1; - return '['; - } - if (*sig == '\0') - return *sig; /* don't advance further */ - - *pSig = sig+1; - return *sig; -} - -/* - * returns the length of a type string, given the start of the - * type string. Used for the case where the debug info format - * references types that are inside a method type signature. - */ -static int typeLength (const char *type) { - // Assumes any leading '(' has already been gobbled - const char *end = type; - decodeSignature(&end); - return end - type; -} - -/* - * Reads a string index as encoded for the debug info format, - * returning a string pointer or NULL as appropriate. - */ -static const char* readStringIdx(const DexFile* pDexFile, - const u1** pStream) { - u4 stringIdx = readUnsignedLeb128(pStream); - - // Remember, encoded string indicies have 1 added to them. - if (stringIdx == 0) { - return NULL; - } else { - return dexStringById(pDexFile, stringIdx - 1); - } -} - -/* - * Reads a type index as encoded for the debug info format, returning - * a string pointer for its descriptor or NULL as appropriate. - */ -static const char* readTypeIdx(const DexFile* pDexFile, - const u1** pStream) { - u4 typeIdx = readUnsignedLeb128(pStream); - - // Remember, encoded type indicies have 1 added to them. - if (typeIdx == 0) { - return NULL; - } else { - return dexStringByTypeIdx(pDexFile, typeIdx - 1); - } -} - -/* access_flag value indicating that a method is static */ -#define ACC_STATIC 0x0008 - -typedef struct LocalInfo { - const char *name; - const char *descriptor; - const char *signature; - u2 startAddress; - bool live; -} LocalInfo; - -static void emitLocalCbIfLive (void *cnxt, int reg, u4 endAddress, - LocalInfo *localInReg, DexDebugNewLocalCb localCb) -{ - if (localCb != NULL && localInReg[reg].live) { - localCb(cnxt, reg, localInReg[reg].startAddress, endAddress, - localInReg[reg].name, - localInReg[reg].descriptor, - localInReg[reg].signature == NULL - ? "" : localInReg[reg].signature ); - } -} - -// TODO optimize localCb == NULL case -void dexDecodeDebugInfo( - const DexFile* pDexFile, - const DexCode* pCode, - const char* classDescriptor, - u4 protoIdx, - u4 accessFlags, - DexDebugNewPositionCb posCb, DexDebugNewLocalCb localCb, - void* cnxt) -{ - const u1 *stream = dexGetDebugInfoStream(pDexFile, pCode); - u4 line; - u4 parametersSize; - u4 address = 0; - LocalInfo localInReg[pCode->registersSize]; - u4 insnsSize = pCode->insnsSize; - DexProto proto = { pDexFile, protoIdx }; - - memset(localInReg, 0, sizeof(LocalInfo) * pCode->registersSize); - - if (stream == NULL) { - goto end; - } - - line = readUnsignedLeb128(&stream); - parametersSize = readUnsignedLeb128(&stream); - - u2 argReg = pCode->registersSize - pCode->insSize; - - if ((accessFlags & ACC_STATIC) == 0) { - /* - * The code is an instance method, which means that there is - * an initial this parameter. Also, the proto list should - * contain exactly one fewer argument word than the insSize - * indicates. - */ - assert(pCode->insSize == (dexProtoComputeArgsSize(&proto) + 1)); - localInReg[argReg].name = "this"; - localInReg[argReg].descriptor = classDescriptor; - localInReg[argReg].startAddress = 0; - localInReg[argReg].live = true; - argReg++; - } else { - assert(pCode->insSize == dexProtoComputeArgsSize(&proto)); - } - - DexParameterIterator iterator; - dexParameterIteratorInit(&iterator, &proto); - - while (parametersSize-- != 0) { - const char* descriptor = dexParameterIteratorNextDescriptor(&iterator); - const char *name; - int reg; - - if ((argReg >= pCode->registersSize) || (descriptor == NULL)) { - goto invalid_stream; - } - - name = readStringIdx(pDexFile, &stream); - reg = argReg; - - switch (descriptor[0]) { - case 'D': - case 'J': - argReg += 2; - break; - default: - argReg += 1; - break; - } - - if (name != NULL) { - localInReg[reg].name = name; - localInReg[reg].descriptor = descriptor; - localInReg[reg].signature = NULL; - localInReg[reg].startAddress = address; - localInReg[reg].live = true; - } - } - - for (;;) { - u1 opcode = *stream++; - u2 reg; - - switch (opcode) { - case DBG_END_SEQUENCE: - goto end; - - case DBG_ADVANCE_PC: - address += readUnsignedLeb128(&stream); - break; - - case DBG_ADVANCE_LINE: - line += readSignedLeb128(&stream); - break; - - case DBG_START_LOCAL: - case DBG_START_LOCAL_EXTENDED: - reg = readUnsignedLeb128(&stream); - if (reg > pCode->registersSize) goto invalid_stream; - - // Emit what was previously there, if anything - emitLocalCbIfLive (cnxt, reg, address, - localInReg, localCb); - - localInReg[reg].name = readStringIdx(pDexFile, &stream); - localInReg[reg].descriptor = readTypeIdx(pDexFile, &stream); - if (opcode == DBG_START_LOCAL_EXTENDED) { - localInReg[reg].signature - = readStringIdx(pDexFile, &stream); - } else { - localInReg[reg].signature = NULL; - } - localInReg[reg].startAddress = address; - localInReg[reg].live = true; - break; - - case DBG_END_LOCAL: - reg = readUnsignedLeb128(&stream); - if (reg > pCode->registersSize) goto invalid_stream; - - emitLocalCbIfLive (cnxt, reg, address, localInReg, localCb); - localInReg[reg].live = false; - break; - - case DBG_RESTART_LOCAL: - reg = readUnsignedLeb128(&stream); - if (reg > pCode->registersSize) goto invalid_stream; - - if (localInReg[reg].name == NULL - || localInReg[reg].descriptor == NULL) { - goto invalid_stream; - } - - /* - * If the register is live, the "restart" is superfluous, - * and we don't want to mess with the existing start address. - */ - if (!localInReg[reg].live) { - localInReg[reg].startAddress = address; - localInReg[reg].live = true; - } - break; - - case DBG_SET_PROLOGUE_END: - case DBG_SET_EPILOGUE_BEGIN: - case DBG_SET_FILE: - break; - - default: { - int adjopcode = opcode - DBG_FIRST_SPECIAL; - - address += adjopcode / DBG_LINE_RANGE; - line += DBG_LINE_BASE + (adjopcode % DBG_LINE_RANGE); - - if (posCb != NULL) { - int done; - done = posCb(cnxt, address, line); - - if (done) { - // early exit - goto end; - } - } - break; - } - } - } - -end: - { - int reg; - for (reg = 0; reg < pCode->registersSize; reg++) { - emitLocalCbIfLive (cnxt, reg, insnsSize, localInReg, localCb); - } - } - return; - -invalid_stream: - IF_LOGE() { - char* methodDescriptor = dexProtoCopyMethodDescriptor(&proto); - LOGE("Invalid debug info stream. class %s; proto %s", - classDescriptor, methodDescriptor); - free(methodDescriptor); - } -} diff --git a/libdex/DexFile.h b/libdex/DexFile.h deleted file mode 100644 index d1ea5ebb2..000000000 --- a/libdex/DexFile.h +++ /dev/null @@ -1,1054 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Access .dex (Dalvik Executable Format) files. The code here assumes that - * the DEX file has been rewritten (byte-swapped, word-aligned) and that - * the contents can be directly accessed as a collection of C arrays. Please - * see docs/dalvik/dex-format.html for a detailed description. - * - * The structure and field names were chosen to match those in the DEX spec. - * - * It's generally assumed that the DEX file will be stored in shared memory, - * obviating the need to copy code and constant pool entries into newly - * allocated storage. Maintaining local pointers to items in the shared area - * is valid and encouraged. - * - * All memory-mapped structures are 32-bit aligned unless otherwise noted. - */ -#ifndef _LIBDEX_DEXFILE -#define _LIBDEX_DEXFILE - -#include "vm/Common.h" // basic type defs, e.g. u1/u2/u4/u8, and LOG -#include "libdex/SysUtil.h" - -/* - * gcc-style inline management -- ensures we have a copy of all functions - * in the library, so code that links against us will work whether or not - * it was built with optimizations enabled. - */ -#ifndef _DEX_GEN_INLINES /* only defined by DexInlines.c */ -# define DEX_INLINE extern __inline__ -#else -# define DEX_INLINE -#endif - -/* DEX file magic number */ -#define DEX_MAGIC "dex\n" -/* version, encoded in 4 bytes of ASCII */ -#define DEX_MAGIC_VERS "035\0" - -/* same, but for optimized DEX header */ -#define DEX_OPT_MAGIC "dey\n" -#define DEX_OPT_MAGIC_VERS "035\0" - -#define DEX_DEP_MAGIC "deps" - -/* - * 160-bit SHA-1 digest. - */ -enum { kSHA1DigestLen = 20, - kSHA1DigestOutputLen = kSHA1DigestLen*2 +1 }; - -/* general constants */ -enum { - kDexEndianConstant = 0x12345678, /* the endianness indicator */ - kDexNoIndex = 0xffffffff, /* not a valid index value */ -}; - -/* - * access flags and masks; the "standard" ones are all <= 0x4000 - * - * Note: There are related declarations in vm/oo/Object.h in the ClassFlags - * enum. - */ -enum { - ACC_PUBLIC = 0x00000001, // class, field, method, ic - ACC_PRIVATE = 0x00000002, // field, method, ic - ACC_PROTECTED = 0x00000004, // field, method, ic - ACC_STATIC = 0x00000008, // field, method, ic - ACC_FINAL = 0x00000010, // class, field, method, ic - ACC_SYNCHRONIZED = 0x00000020, // method (only allowed on natives) - ACC_SUPER = 0x00000020, // class (not used in Dalvik) - ACC_VOLATILE = 0x00000040, // field - ACC_BRIDGE = 0x00000040, // method (1.5) - ACC_TRANSIENT = 0x00000080, // field - ACC_VARARGS = 0x00000080, // method (1.5) - ACC_NATIVE = 0x00000100, // method - ACC_INTERFACE = 0x00000200, // class, ic - ACC_ABSTRACT = 0x00000400, // class, method, ic - ACC_STRICT = 0x00000800, // method - ACC_SYNTHETIC = 0x00001000, // field, method, ic - ACC_ANNOTATION = 0x00002000, // class, ic (1.5) - ACC_ENUM = 0x00004000, // class, field, ic (1.5) - ACC_CONSTRUCTOR = 0x00010000, // method (Dalvik only) - ACC_DECLARED_SYNCHRONIZED = - 0x00020000, // method (Dalvik only) - ACC_CLASS_MASK = - (ACC_PUBLIC | ACC_FINAL | ACC_INTERFACE | ACC_ABSTRACT - | ACC_SYNTHETIC | ACC_ANNOTATION | ACC_ENUM), - ACC_INNER_CLASS_MASK = - (ACC_CLASS_MASK | ACC_PRIVATE | ACC_PROTECTED | ACC_STATIC), - ACC_FIELD_MASK = - (ACC_PUBLIC | ACC_PRIVATE | ACC_PROTECTED | ACC_STATIC | ACC_FINAL - | ACC_VOLATILE | ACC_TRANSIENT | ACC_SYNTHETIC | ACC_ENUM), - ACC_METHOD_MASK = - (ACC_PUBLIC | ACC_PRIVATE | ACC_PROTECTED | ACC_STATIC | ACC_FINAL - | ACC_SYNCHRONIZED | ACC_BRIDGE | ACC_VARARGS | ACC_NATIVE - | ACC_ABSTRACT | ACC_STRICT | ACC_SYNTHETIC | ACC_CONSTRUCTOR - | ACC_DECLARED_SYNCHRONIZED), -}; - -/* annotation constants */ -enum { - kDexVisibilityBuild = 0x00, /* annotation visibility */ - kDexVisibilityRuntime = 0x01, - kDexVisibilitySystem = 0x02, - - kDexAnnotationByte = 0x00, - kDexAnnotationShort = 0x02, - kDexAnnotationChar = 0x03, - kDexAnnotationInt = 0x04, - kDexAnnotationLong = 0x06, - kDexAnnotationFloat = 0x10, - kDexAnnotationDouble = 0x11, - kDexAnnotationString = 0x17, - kDexAnnotationType = 0x18, - kDexAnnotationField = 0x19, - kDexAnnotationMethod = 0x1a, - kDexAnnotationEnum = 0x1b, - kDexAnnotationArray = 0x1c, - kDexAnnotationAnnotation = 0x1d, - kDexAnnotationNull = 0x1e, - kDexAnnotationBoolean = 0x1f, - - kDexAnnotationValueTypeMask = 0x1f, /* low 5 bits */ - kDexAnnotationValueArgShift = 5, -}; - -/* map item type codes */ -enum { - kDexTypeHeaderItem = 0x0000, - kDexTypeStringIdItem = 0x0001, - kDexTypeTypeIdItem = 0x0002, - kDexTypeProtoIdItem = 0x0003, - kDexTypeFieldIdItem = 0x0004, - kDexTypeMethodIdItem = 0x0005, - kDexTypeClassDefItem = 0x0006, - kDexTypeMapList = 0x1000, - kDexTypeTypeList = 0x1001, - kDexTypeAnnotationSetRefList = 0x1002, - kDexTypeAnnotationSetItem = 0x1003, - kDexTypeClassDataItem = 0x2000, - kDexTypeCodeItem = 0x2001, - kDexTypeStringDataItem = 0x2002, - kDexTypeDebugInfoItem = 0x2003, - kDexTypeAnnotationItem = 0x2004, - kDexTypeEncodedArrayItem = 0x2005, - kDexTypeAnnotationsDirectoryItem = 0x2006, -}; - -/* auxillary data section chunk codes */ -enum { - kDexChunkClassLookup = 0x434c4b50, /* CLKP */ - - kDexChunkReducingIndexMap = 0x5249584d, /* RIXM */ - kDexChunkExpandingIndexMap = 0x4549584d, /* EIXM */ - - kDexChunkEnd = 0x41454e44, /* AEND */ -}; - -/* debug info opcodes and constants */ -enum { - DBG_END_SEQUENCE = 0x00, - DBG_ADVANCE_PC = 0x01, - DBG_ADVANCE_LINE = 0x02, - DBG_START_LOCAL = 0x03, - DBG_START_LOCAL_EXTENDED = 0x04, - DBG_END_LOCAL = 0x05, - DBG_RESTART_LOCAL = 0x06, - DBG_SET_PROLOGUE_END = 0x07, - DBG_SET_EPILOGUE_BEGIN = 0x08, - DBG_SET_FILE = 0x09, - DBG_FIRST_SPECIAL = 0x0a, - DBG_LINE_BASE = -4, - DBG_LINE_RANGE = 15, -}; - -/* - * Direct-mapped "header_item" struct. - */ -typedef struct DexHeader { - u1 magic[8]; /* includes version number */ - u4 checksum; /* adler32 checksum */ - u1 signature[kSHA1DigestLen]; /* SHA-1 hash */ - u4 fileSize; /* length of entire file */ - u4 headerSize; /* offset to start of next section */ - u4 endianTag; - u4 linkSize; - u4 linkOff; - u4 mapOff; - u4 stringIdsSize; - u4 stringIdsOff; - u4 typeIdsSize; - u4 typeIdsOff; - u4 protoIdsSize; - u4 protoIdsOff; - u4 fieldIdsSize; - u4 fieldIdsOff; - u4 methodIdsSize; - u4 methodIdsOff; - u4 classDefsSize; - u4 classDefsOff; - u4 dataSize; - u4 dataOff; -} DexHeader; - -/* - * Direct-mapped "map_item". - */ -typedef struct DexMapItem { - u2 type; /* type code (see kDexType* above) */ - u2 unused; - u4 size; /* count of items of the indicated type */ - u4 offset; /* file offset to the start of data */ -} DexMapItem; - -/* - * Direct-mapped "map_list". - */ -typedef struct DexMapList { - u4 size; /* #of entries in list */ - DexMapItem list[1]; /* entries */ -} DexMapList; - -/* - * Direct-mapped "string_id_item". - */ -typedef struct DexStringId { - u4 stringDataOff; /* file offset to string_data_item */ -} DexStringId; - -/* - * Direct-mapped "type_id_item". - */ -typedef struct DexTypeId { - u4 descriptorIdx; /* index into stringIds list for type descriptor */ -} DexTypeId; - -/* - * Direct-mapped "field_id_item". - */ -typedef struct DexFieldId { - u2 classIdx; /* index into typeIds list for defining class */ - u2 typeIdx; /* index into typeIds for field type */ - u4 nameIdx; /* index into stringIds for field name */ -} DexFieldId; - -/* - * Direct-mapped "method_id_item". - */ -typedef struct DexMethodId { - u2 classIdx; /* index into typeIds list for defining class */ - u2 protoIdx; /* index into protoIds for method prototype */ - u4 nameIdx; /* index into stringIds for method name */ -} DexMethodId; - -/* - * Direct-mapped "proto_id_item". - */ -typedef struct DexProtoId { - u4 shortyIdx; /* index into stringIds for shorty descriptor */ - u4 returnTypeIdx; /* index into typeIds list for return type */ - u4 parametersOff; /* file offset to type_list for parameter types */ -} DexProtoId; - -/* - * Direct-mapped "class_def_item". - */ -typedef struct DexClassDef { - u4 classIdx; /* index into typeIds for this class */ - u4 accessFlags; - u4 superclassIdx; /* index into typeIds for superclass */ - u4 interfacesOff; /* file offset to DexTypeList */ - u4 sourceFileIdx; /* index into stringIds for source file name */ - u4 annotationsOff; /* file offset to annotations_directory_item */ - u4 classDataOff; /* file offset to class_data_item */ - u4 staticValuesOff; /* file offset to DexEncodedArray */ -} DexClassDef; - -/* - * Direct-mapped "type_item". - */ -typedef struct DexTypeItem { - u2 typeIdx; /* index into typeIds */ -} DexTypeItem; - -/* - * Direct-mapped "type_list". - */ -typedef struct DexTypeList { - u4 size; /* #of entries in list */ - DexTypeItem list[1]; /* entries */ -} DexTypeList; - -/* - * Direct-mapped "code_item". - * - * The "catches" table is used when throwing an exception, - * "debugInfo" is used when displaying an exception stack trace or - * debugging. An offset of zero indicates that there are no entries. - */ -typedef struct DexCode { - u2 registersSize; - u2 insSize; - u2 outsSize; - u2 triesSize; - u4 debugInfoOff; /* file offset to debug info stream */ - u4 insnsSize; /* size of the insns array, in u2 units */ - u2 insns[1]; - /* followed by optional u2 padding */ - /* followed by try_item[triesSize] */ - /* followed by uleb128 handlersSize */ - /* followed by catch_handler_item[handlersSize] */ -} DexCode; - -/* - * Direct-mapped "try_item". - */ -typedef struct DexTry { - u4 startAddr; /* start address, in 16-bit code units */ - u2 insnCount; /* instruction count, in 16-bit code units */ - u2 handlerOff; /* offset in encoded handler data to handlers */ -} DexTry; - -/* - * Link table. Currently undefined. - */ -typedef struct DexLink { - u1 bleargh; -} DexLink; - - -/* - * Direct-mapped "annotations_directory_item". - */ -typedef struct DexAnnotationsDirectoryItem { - u4 classAnnotationsOff; /* offset to DexAnnotationSetItem */ - u4 fieldsSize; /* count of DexFieldAnnotationsItem */ - u4 methodsSize; /* count of DexMethodAnnotationsItem */ - u4 parametersSize; /* count of DexParameterAnnotationsItem */ - /* followed by DexFieldAnnotationsItem[fieldsSize] */ - /* followed by DexMethodAnnotationsItem[methodsSize] */ - /* followed by DexParameterAnnotationsItem[parametersSize] */ -} DexAnnotationsDirectoryItem; - -/* - * Direct-mapped "field_annotations_item". - */ -typedef struct DexFieldAnnotationsItem { - u4 fieldIdx; - u4 annotationsOff; /* offset to DexAnnotationSetItem */ -} DexFieldAnnotationsItem; - -/* - * Direct-mapped "method_annotations_item". - */ -typedef struct DexMethodAnnotationsItem { - u4 methodIdx; - u4 annotationsOff; /* offset to DexAnnotationSetItem */ -} DexMethodAnnotationsItem; - -/* - * Direct-mapped "parameter_annotations_item". - */ -typedef struct DexParameterAnnotationsItem { - u4 methodIdx; - u4 annotationsOff; /* offset to DexAnotationSetRefList */ -} DexParameterAnnotationsItem; - -/* - * Direct-mapped "annotation_set_ref_item". - */ -typedef struct DexAnnotationSetRefItem { - u4 annotationsOff; /* offset to DexAnnotationSetItem */ -} DexAnnotationSetRefItem; - -/* - * Direct-mapped "annotation_set_ref_list". - */ -typedef struct DexAnnotationSetRefList { - u4 size; - DexAnnotationSetRefItem list[1]; -} DexAnnotationSetRefList; - -/* - * Direct-mapped "anotation_set_item". - */ -typedef struct DexAnnotationSetItem { - u4 size; - u4 entries[1]; /* offset to DexAnnotationItem */ -} DexAnnotationSetItem; - -/* - * Direct-mapped "annotation_item". - * - * NOTE: this structure is byte-aligned. - */ -typedef struct DexAnnotationItem { - u1 visibility; - u1 annotation[1]; /* data in encoded_annotation format */ -} DexAnnotationItem; - -/* - * Direct-mapped "encoded_array". - * - * NOTE: this structure is byte-aligned. - */ -typedef struct DexEncodedArray { - u1 array[1]; /* data in encoded_array format */ -} DexEncodedArray; - -/* - * Lookup table for classes. It provides a mapping from class name to - * class definition. Used by dexFindClass(). - * - * We calculate this at DEX optimization time and embed it in the file so we - * don't need the same hash table in every VM. This is slightly slower than - * a hash table with direct pointers to the items, but because it's shared - * there's less of a penalty for using a fairly sparse table. - */ -typedef struct DexClassLookup { - int size; // total size, including "size" - int numEntries; // size of table[]; always power of 2 - struct { - u4 classDescriptorHash; // class descriptor hash code - int classDescriptorOffset; // in bytes, from start of DEX - int classDefOffset; // in bytes, from start of DEX - } table[1]; -} DexClassLookup; - -/* - * Map constant pool indices from one form to another. Some or all of these - * may be NULL. - * - * The map values are 16-bit unsigned values. If the values we map to - * require a larger range, we omit the mapping for that category (which - * requires that the lookup code recognize that the data will not be - * there for all DEX files in all categories.) - */ -typedef struct DexIndexMap { - const u2* classMap; /* map, either expanding or reducing */ - u4 classFullCount; /* same as typeIdsSize */ - u4 classReducedCount; /* post-reduction count */ - const u2* methodMap; - u4 methodFullCount; - u4 methodReducedCount; - const u2* fieldMap; - u4 fieldFullCount; - u4 fieldReducedCount; - const u2* stringMap; - u4 stringFullCount; - u4 stringReducedCount; -} DexIndexMap; - -/* - * Header added by DEX optimization pass. Values are always written in - * local byte and structure padding. The first field (magic + version) - * is guaranteed to be present and directly readable for all expected - * compiler configurations; the rest is version-dependent. - * - * Try to keep this simple and fixed-size. - */ -typedef struct DexOptHeader { - u1 magic[8]; /* includes version number */ - - u4 dexOffset; /* file offset of DEX header */ - u4 dexLength; - u4 depsOffset; /* offset of optimized DEX dependency table */ - u4 depsLength; - u4 auxOffset; /* file offset of pre-calc auxillary data */ - u4 auxLength; - - u4 flags; /* some info flags */ - - u4 padding; /* induce 64-bit alignment */ -} DexOptHeader; - -#define DEX_FLAG_VERIFIED (1) /* tried to verify all classes */ -#define DEX_OPT_FLAG_BIG (1<<1) /* swapped to big-endian */ -#define DEX_OPT_FLAG_FIELDS (1<<2) /* field access optimized */ -#define DEX_OPT_FLAG_INVOCATIONS (1<<3) /* method calls optimized */ - -#define DEX_INTERFACE_CACHE_SIZE 128 /* must be power of 2 */ - -/* - * Structure representing a DEX file. - * - * Code should regard DexFile as opaque, using the API calls provided here - * to access specific structures. - */ -typedef struct DexFile { - /* directly-mapped "opt" header */ - const DexOptHeader* pOptHeader; - - /* pointers to directly-mapped structs and arrays in base DEX */ - const DexHeader* pHeader; - const DexStringId* pStringIds; - const DexTypeId* pTypeIds; - const DexFieldId* pFieldIds; - const DexMethodId* pMethodIds; - const DexProtoId* pProtoIds; - const DexClassDef* pClassDefs; - const DexLink* pLinkData; - - /* mapped in "auxillary" section */ - const DexClassLookup* pClassLookup; - - /* mapped in "auxillary" section */ - DexIndexMap indexMap; - - /* points to start of DEX file data */ - const u1* baseAddr; - - /* track memory overhead for auxillary structures */ - int overhead; - - /* additional app-specific data structures associated with the DEX */ - //void* auxData; -} DexFile; - -/* - * Utility function -- rounds up to the nearest power of 2. - */ -u4 dexRoundUpPower2(u4 val); - -/* - * Parse an optimized or unoptimized .dex file sitting in memory. - * - * On success, return a newly-allocated DexFile. - */ -DexFile* dexFileParse(const u1* data, size_t length, int flags); - -/* bit values for "flags" argument to dexFileParse */ -enum { - kDexParseDefault = 0, - kDexParseVerifyChecksum = 1, - kDexParseContinueOnError = (1 << 1), -}; - -/* - * Correct the byte ordering in a memory-mapped DEX file. This is only - * required for code that opens "raw" DEX files, such as the DEX optimizer. - * - * Return 0 on success. - */ -int dexFixByteOrdering(u1* addr, int len); - -/* - * Compute DEX checksum. - */ -u4 dexComputeChecksum(const DexHeader* pHeader); - -/* - * Free a DexFile structure, along with any associated structures. - */ -void dexFileFree(DexFile* pDexFile); - -/* - * Create class lookup table. - */ -DexClassLookup* dexCreateClassLookup(DexFile* pDexFile); - -/* - * Find a class definition by descriptor. - */ -const DexClassDef* dexFindClass(const DexFile* pFile, const char* descriptor); - -/* - * Set up the basic raw data pointers of a DexFile. This function isn't - * meant for general use. - */ -void dexFileSetupBasicPointers(DexFile* pDexFile, const u1* data); - -/* return the DexMapList of the file, if any */ -DEX_INLINE const DexMapList* dexGetMap(const DexFile* pDexFile) { - u4 mapOff = pDexFile->pHeader->mapOff; - - if (mapOff == 0) { - return NULL; - } else { - return (const DexMapList*) (pDexFile->baseAddr + mapOff); - } -} - -/* return the const char* string data referred to by the given string_id */ -DEX_INLINE const char* dexGetStringData(const DexFile* pDexFile, - const DexStringId* pStringId) { - const u1* ptr = pDexFile->baseAddr + pStringId->stringDataOff; - - // Skip the uleb128 length. - while (*(ptr++) > 0x7f) /* empty */ ; - - return (const char*) ptr; -} -/* return the StringId with the specified index */ -DEX_INLINE const DexStringId* dexGetStringId(const DexFile* pDexFile, u4 idx) { - assert(idx < pDexFile->pHeader->stringIdsSize); - return &pDexFile->pStringIds[idx]; -} -/* return the UTF-8 encoded string with the specified string_id index */ -DEX_INLINE const char* dexStringById(const DexFile* pDexFile, u4 idx) { - const DexStringId* pStringId = dexGetStringId(pDexFile, idx); - return dexGetStringData(pDexFile, pStringId); -} - -/* Return the UTF-8 encoded string with the specified string_id index, - * also filling in the UTF-16 size (number of 16-bit code points).*/ -const char* dexStringAndSizeById(const DexFile* pDexFile, u4 idx, - u4* utf16Size); - -/* return the TypeId with the specified index */ -DEX_INLINE const DexTypeId* dexGetTypeId(const DexFile* pDexFile, u4 idx) { - assert(idx < pDexFile->pHeader->typeIdsSize); - return &pDexFile->pTypeIds[idx]; -} - -/* - * Get the descriptor string associated with a given type index. - * The caller should not free() the returned string. - */ -DEX_INLINE const char* dexStringByTypeIdx(const DexFile* pDexFile, u4 idx) { - const DexTypeId* typeId = dexGetTypeId(pDexFile, idx); - return dexStringById(pDexFile, typeId->descriptorIdx); -} - -/* return the MethodId with the specified index */ -DEX_INLINE const DexMethodId* dexGetMethodId(const DexFile* pDexFile, u4 idx) { - assert(idx < pDexFile->pHeader->methodIdsSize); - return &pDexFile->pMethodIds[idx]; -} - -/* return the FieldId with the specified index */ -DEX_INLINE const DexFieldId* dexGetFieldId(const DexFile* pDexFile, u4 idx) { - assert(idx < pDexFile->pHeader->fieldIdsSize); - return &pDexFile->pFieldIds[idx]; -} - -/* return the ProtoId with the specified index */ -DEX_INLINE const DexProtoId* dexGetProtoId(const DexFile* pDexFile, u4 idx) { - assert(idx < pDexFile->pHeader->protoIdsSize); - return &pDexFile->pProtoIds[idx]; -} - -/* - * Get the parameter list from a ProtoId. The returns NULL if the ProtoId - * does not have a parameter list. - */ -DEX_INLINE const DexTypeList* dexGetProtoParameters( - const DexFile *pDexFile, const DexProtoId* pProtoId) { - if (pProtoId->parametersOff == 0) { - return NULL; - } - return (const DexTypeList*) - (pDexFile->baseAddr + pProtoId->parametersOff); -} - -/* return the ClassDef with the specified index */ -DEX_INLINE const DexClassDef* dexGetClassDef(const DexFile* pDexFile, u4 idx) { - assert(idx < pDexFile->pHeader->classDefsSize); - return &pDexFile->pClassDefs[idx]; -} - -/* get the interface list for a DexClass */ -DEX_INLINE const DexTypeList* dexGetInterfacesList(const DexFile* pDexFile, - const DexClassDef* pClassDef) -{ - if (pClassDef->interfacesOff == 0) - return NULL; - return (const DexTypeList*) - (pDexFile->baseAddr + pClassDef->interfacesOff); -} -/* return the Nth entry in a DexTypeList. */ -DEX_INLINE const DexTypeItem* dexGetTypeItem(const DexTypeList* pList, - u4 idx) -{ - assert(idx < pList->size); - return &pList->list[idx]; -} -/* return the type_idx for the Nth entry in a TypeList */ -DEX_INLINE u4 dexTypeListGetIdx(const DexTypeList* pList, u4 idx) { - const DexTypeItem* pItem = dexGetTypeItem(pList, idx); - return pItem->typeIdx; -} - -/* get the static values list for a DexClass */ -DEX_INLINE const DexEncodedArray* dexGetStaticValuesList( - const DexFile* pDexFile, const DexClassDef* pClassDef) -{ - if (pClassDef->staticValuesOff == 0) - return NULL; - return (const DexEncodedArray*) - (pDexFile->baseAddr + pClassDef->staticValuesOff); -} - -/* get the annotations directory item for a DexClass */ -DEX_INLINE const DexAnnotationsDirectoryItem* dexGetAnnotationsDirectoryItem( - const DexFile* pDexFile, const DexClassDef* pClassDef) -{ - if (pClassDef->annotationsOff == 0) - return NULL; - return (const DexAnnotationsDirectoryItem*) - (pDexFile->baseAddr + pClassDef->annotationsOff); -} - -/* get the source file string */ -DEX_INLINE const char* dexGetSourceFile( - const DexFile* pDexFile, const DexClassDef* pClassDef) -{ - if (pClassDef->sourceFileIdx == 0xffffffff) - return NULL; - return dexStringById(pDexFile, pClassDef->sourceFileIdx); -} - -/* Get the list of "tries" for the given DexCode. */ -DEX_INLINE const DexTry* dexGetTries(const DexCode* pCode) { - const u2* insnsEnd = &pCode->insns[pCode->insnsSize]; - - // Round to four bytes. - if ((((u4) insnsEnd) & 3) != 0) { - insnsEnd++; - } - - return (const DexTry*) insnsEnd; -} - -/* Get the base of the encoded data for the given DexCode. */ -DEX_INLINE const u1* dexGetCatchHandlerData(const DexCode* pCode) { - const DexTry* pTries = dexGetTries(pCode); - return (const u1*) &pTries[pCode->triesSize]; -} - -DEX_INLINE const u1* dexGetDebugInfoStream(const DexFile* pDexFile, - const DexCode* pCode) -{ - if (pCode->debugInfoOff == 0) { - return NULL; - } else { - return pDexFile->baseAddr + pCode->debugInfoOff; - } -} - -/* - * Callback for "new position table entry". - * Returning non-0 causes the decoder to stop early. - */ -typedef int (*DexDebugNewPositionCb)(void *cnxt, u4 address, u4 lineNum); - -/* - * Callback for "new locals table entry". "signature" is an empty string - * if no signature is available for an entry. - */ -typedef void (*DexDebugNewLocalCb)(void *cnxt, u2 reg, u4 startAddress, - u4 endAddress, const char *name, const char *descriptor, - const char *signature); - -/* - * Decode debug info for method. - * - * posCb is called in ascending address order. - * localCb is called in order of ascending end address. - */ -void dexDecodeDebugInfo( - const DexFile* pDexFile, - const DexCode* pDexCode, - const char* classDescriptor, - u4 protoIdx, - u4 accessFlags, - DexDebugNewPositionCb posCb, DexDebugNewLocalCb localCb, - void* cnxt); - -/* DexClassDef convenience - get class descriptor */ -DEX_INLINE const char* dexGetClassDescriptor(const DexFile* pDexFile, - const DexClassDef* pClassDef) -{ - return dexStringByTypeIdx(pDexFile, pClassDef->classIdx); -} - -/* DexClassDef convenience - get superclass descriptor */ -DEX_INLINE const char* dexGetSuperClassDescriptor(const DexFile* pDexFile, - const DexClassDef* pClassDef) -{ - if (pClassDef->superclassIdx == 0) - return NULL; - return dexStringByTypeIdx(pDexFile, pClassDef->superclassIdx); -} - -/* DexClassDef convenience - get class_data_item pointer */ -DEX_INLINE const u1* dexGetClassData(const DexFile* pDexFile, - const DexClassDef* pClassDef) -{ - if (pClassDef->classDataOff == 0) - return NULL; - return (const u1*) (pDexFile->baseAddr + pClassDef->classDataOff); -} - -/* Get an annotation set at a particular offset. */ -DEX_INLINE const DexAnnotationSetItem* dexGetAnnotationSetItem( - const DexFile* pDexFile, u4 offset) -{ - return (const DexAnnotationSetItem*) (pDexFile->baseAddr + offset); -} -/* get the class' annotation set */ -DEX_INLINE const DexAnnotationSetItem* dexGetClassAnnotationSet( - const DexFile* pDexFile, const DexAnnotationsDirectoryItem* pAnnoDir) -{ - if (pAnnoDir->classAnnotationsOff == 0) - return NULL; - return dexGetAnnotationSetItem(pDexFile, pAnnoDir->classAnnotationsOff); -} - -/* get the class' field annotation list */ -DEX_INLINE const DexFieldAnnotationsItem* dexGetFieldAnnotations( - const DexFile* pDexFile, const DexAnnotationsDirectoryItem* pAnnoDir) -{ - if (pAnnoDir->fieldsSize == 0) - return NULL; - - // Skip past the header to the start of the field annotations. - return (const DexFieldAnnotationsItem*) &pAnnoDir[1]; -} - -/* get field annotation list size */ -DEX_INLINE int dexGetFieldAnnotationsSize(const DexFile* pDexFile, - const DexAnnotationsDirectoryItem* pAnnoDir) -{ - return pAnnoDir->fieldsSize; -} - -/* return a pointer to the field's annotation set */ -DEX_INLINE const DexAnnotationSetItem* dexGetFieldAnnotationSetItem( - const DexFile* pDexFile, const DexFieldAnnotationsItem* pItem) -{ - return dexGetAnnotationSetItem(pDexFile, pItem->annotationsOff); -} - -/* get the class' method annotation list */ -DEX_INLINE const DexMethodAnnotationsItem* dexGetMethodAnnotations( - const DexFile* pDexFile, const DexAnnotationsDirectoryItem* pAnnoDir) -{ - if (pAnnoDir->methodsSize == 0) - return NULL; - - /* - * Skip past the header and field annotations to the start of the - * method annotations. - */ - const u1* addr = (const u1*) &pAnnoDir[1]; - addr += pAnnoDir->fieldsSize * sizeof (DexFieldAnnotationsItem); - return (const DexMethodAnnotationsItem*) addr; -} - -/* get method annotation list size */ -DEX_INLINE int dexGetMethodAnnotationsSize(const DexFile* pDexFile, - const DexAnnotationsDirectoryItem* pAnnoDir) -{ - return pAnnoDir->methodsSize; -} - -/* return a pointer to the method's annotation set */ -DEX_INLINE const DexAnnotationSetItem* dexGetMethodAnnotationSetItem( - const DexFile* pDexFile, const DexMethodAnnotationsItem* pItem) -{ - return dexGetAnnotationSetItem(pDexFile, pItem->annotationsOff); -} - -/* get the class' parameter annotation list */ -DEX_INLINE const DexParameterAnnotationsItem* dexGetParameterAnnotations( - const DexFile* pDexFile, const DexAnnotationsDirectoryItem* pAnnoDir) -{ - if (pAnnoDir->parametersSize == 0) - return NULL; - - /* - * Skip past the header, field annotations, and method annotations - * to the start of the parameter annotations. - */ - const u1* addr = (const u1*) &pAnnoDir[1]; - addr += pAnnoDir->fieldsSize * sizeof (DexFieldAnnotationsItem); - addr += pAnnoDir->methodsSize * sizeof (DexMethodAnnotationsItem); - return (const DexParameterAnnotationsItem*) addr; -} - -/* get method annotation list size */ -DEX_INLINE int dexGetParameterAnnotationsSize(const DexFile* pDexFile, - const DexAnnotationsDirectoryItem* pAnnoDir) -{ - return pAnnoDir->parametersSize; -} - -/* return the parameter annotation ref list */ -DEX_INLINE const DexAnnotationSetRefList* dexGetParameterAnnotationSetRefList( - const DexFile* pDexFile, const DexParameterAnnotationsItem* pItem) -{ - return (const DexAnnotationSetRefList*) - (pDexFile->baseAddr + pItem->annotationsOff); -} - -/* get method annotation list size */ -DEX_INLINE int dexGetParameterAnnotationSetRefSize(const DexFile* pDexFile, - const DexParameterAnnotationsItem* pItem) -{ - if (pItem->annotationsOff == 0) - return 0; - return dexGetParameterAnnotationSetRefList(pDexFile, pItem)->size; -} - -/* return the Nth entry from an annotation set ref list */ -DEX_INLINE const DexAnnotationSetRefItem* dexGetParameterAnnotationSetRef( - const DexAnnotationSetRefList* pList, u4 idx) -{ - assert(idx < pList->size); - return &pList->list[idx]; -} - -/* given a DexAnnotationSetRefItem, return the DexAnnotationSetItem */ -DEX_INLINE const DexAnnotationSetItem* dexGetSetRefItemItem( - const DexFile* pDexFile, const DexAnnotationSetRefItem* pItem) -{ - return dexGetAnnotationSetItem(pDexFile, pItem->annotationsOff); -} - -/* return the Nth annotation offset from a DexAnnotationSetItem */ -DEX_INLINE u4 dexGetAnnotationOff( - const DexAnnotationSetItem* pAnnoSet, u4 idx) -{ - assert(idx < pAnnoSet->size); - return pAnnoSet->entries[idx]; -} - -/* return the Nth annotation item from a DexAnnotationSetItem */ -DEX_INLINE const DexAnnotationItem* dexGetAnnotationItem( - const DexFile* pDexFile, const DexAnnotationSetItem* pAnnoSet, u4 idx) -{ - return (const DexAnnotationItem*) - (pDexFile->baseAddr + dexGetAnnotationOff(pAnnoSet, idx)); -} - - -/* - * =========================================================================== - * Utility Functions - * =========================================================================== - */ - -/* - * Retrieve the next UTF-16 character from a UTF-8 string. - * - * Advances "*pUtf8Ptr" to the start of the next character. - * - * WARNING: If a string is corrupted by dropping a '\0' in the middle - * of a 3-byte sequence, you can end up overrunning the buffer with - * reads (and possibly with the writes if the length was computed and - * cached before the damage). For performance reasons, this function - * assumes that the string being parsed is known to be valid (e.g., by - * already being verified). Most strings we process here are coming - * out of dex files or other internal translations, so the only real - * risk comes from the JNI NewStringUTF call. - */ -DEX_INLINE u2 dexGetUtf16FromUtf8(const char** pUtf8Ptr) -{ - unsigned int one, two, three; - - one = *(*pUtf8Ptr)++; - if ((one & 0x80) != 0) { - /* two- or three-byte encoding */ - two = *(*pUtf8Ptr)++; - if ((one & 0x20) != 0) { - /* three-byte encoding */ - three = *(*pUtf8Ptr)++; - return ((one & 0x0f) << 12) | - ((two & 0x3f) << 6) | - (three & 0x3f); - } else { - /* two-byte encoding */ - return ((one & 0x1f) << 6) | - (two & 0x3f); - } - } else { - /* one-byte encoding */ - return one; - } -} - -/* Compare two '\0'-terminated modified UTF-8 strings, using Unicode - * code point values for comparison. This treats different encodings - * for the same code point as equivalent, except that only a real '\0' - * byte is considered the string terminator. The return value is as - * for strcmp(). */ -int dexUtf8Cmp(const char* s1, const char* s2); - - -/* for dexIsValidMemberNameUtf8(), a bit vector indicating valid low ascii */ -extern u4 DEX_MEMBER_VALID_LOW_ASCII[4]; - -/* Helper for dexIsValidMemberUtf8(); do not call directly. */ -bool dexIsValidMemberNameUtf8_0(const char** pUtf8Ptr); - -/* Return whether the pointed-at modified-UTF-8 encoded character is - * valid as part of a member name, updating the pointer to point past - * the consumed character. This will consume two encoded UTF-16 code - * points if the character is encoded as a surrogate pair. Also, if - * this function returns false, then the given pointer may only have - * been partially advanced. */ -DEX_INLINE bool dexIsValidMemberNameUtf8(const char** pUtf8Ptr) { - u1 c = (u1) **pUtf8Ptr; - if (c <= 0x7f) { - // It's low-ascii, so check the table. - u4 wordIdx = c >> 5; - u4 bitIdx = c & 0x1f; - (*pUtf8Ptr)++; - return (DEX_MEMBER_VALID_LOW_ASCII[wordIdx] & (1 << bitIdx)) != 0; - } - - /* - * It's a multibyte encoded character. Call a non-inline function - * for the heavy lifting. - */ - return dexIsValidMemberNameUtf8_0(pUtf8Ptr); -} - -/* Return whether the given string is a valid field or method name. */ -bool dexIsValidMemberName(const char* s); - -/* Return whether the given string is a valid type descriptor. */ -bool dexIsValidTypeDescriptor(const char* s); - -/* Return whether the given string is a valid reference descriptor. This - * is true if dexIsValidTypeDescriptor() returns true and the descriptor - * is for a class or array and not a primitive type. */ -bool dexIsReferenceDescriptor(const char* s); - -/* Return whether the given string is a valid class descriptor. This - * is true if dexIsValidTypeDescriptor() returns true and the descriptor - * is for a class and not an array or primitive type. */ -bool dexIsClassDescriptor(const char* s); - -/* Return whether the given string is a valid field type descriptor. This - * is true if dexIsValidTypeDescriptor() returns true and the descriptor - * is for anything but "void". */ -bool dexIsFieldDescriptor(const char* s); - -#endif /*_LIBDEX_DEXFILE*/ diff --git a/libdex/DexInlines.c b/libdex/DexInlines.c deleted file mode 100644 index ac0262f4e..000000000 --- a/libdex/DexInlines.c +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Generate non-inline copies of inline functions in header files. - */ - -#define _DEX_GEN_INLINES - -#include "DexFile.h" - -#include "DexCatch.h" -#include "DexClass.h" -#include "DexDataMap.h" -#include "DexProto.h" -#include "InstrUtils.h" -#include "Leb128.h" -#include "ZipArchive.h" - diff --git a/libdex/DexProto.c b/libdex/DexProto.c deleted file mode 100644 index c8f1b3edb..000000000 --- a/libdex/DexProto.c +++ /dev/null @@ -1,534 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions for dealing with method prototypes - */ - -#include "DexProto.h" - -#include <stdlib.h> -#include <string.h> - -/* - * =========================================================================== - * String Cache - * =========================================================================== - */ - -/* - * Make sure that the given cache can hold a string of the given length, - * including the final '\0' byte. - */ -static void dexStringCacheAlloc(DexStringCache* pCache, size_t length) { - if (pCache->allocatedSize != 0) { - if (pCache->allocatedSize >= length) { - return; - } - free((void*) pCache->value); - } - - if (length <= sizeof(pCache->buffer)) { - pCache->value = pCache->buffer; - pCache->allocatedSize = 0; - } else { - pCache->value = malloc(length); - pCache->allocatedSize = length; - } -} - -/* - * Initialize the given DexStringCache. Use this function before passing - * one into any other function. - */ -void dexStringCacheInit(DexStringCache* pCache) { - pCache->value = pCache->buffer; - pCache->allocatedSize = 0; - pCache->buffer[0] = '\0'; -} - -/* - * Release the allocated contents of the given DexStringCache, if any. - * Use this function after your last use of a DexStringCache. - */ -void dexStringCacheRelease(DexStringCache* pCache) { - if (pCache->allocatedSize != 0) { - free((void*) pCache->value); - pCache->value = pCache->buffer; - pCache->allocatedSize = 0; - } -} - -/* - * If the given DexStringCache doesn't already point at the given value, - * make a copy of it into the cache. This always returns a writable - * pointer to the contents (whether or not a copy had to be made). This - * function is intended to be used after making a call that at least - * sometimes doesn't populate a DexStringCache. - */ -char* dexStringCacheEnsureCopy(DexStringCache* pCache, const char* value) { - if (value != pCache->value) { - size_t length = strlen(value) + 1; - dexStringCacheAlloc(pCache, length); - memcpy(pCache->value, value, length); - } - - return pCache->value; -} - -/* - * Abandon the given DexStringCache, and return a writable copy of the - * given value (reusing the string cache's allocation if possible). - * The return value must be free()d by the caller. Use this instead of - * dexStringCacheRelease() if you want the buffer to survive past the - * scope of the DexStringCache. - */ -char* dexStringCacheAbandon(DexStringCache* pCache, const char* value) { - if ((value == pCache->value) && (pCache->allocatedSize != 0)) { - char* result = pCache->value; - pCache->allocatedSize = 0; - pCache->value = pCache->buffer; - return result; - } else { - return strdup(value); - } -} - - -/* - * =========================================================================== - * Method Prototypes - * =========================================================================== - */ - -/* - * Return the DexProtoId from the given DexProto. The DexProto must - * actually refer to a DexProtoId. - */ -static inline const DexProtoId* getProtoId(const DexProto* pProto) { - return dexGetProtoId(pProto->dexFile, pProto->protoIdx); -} - -/* - * Get the short-form method descriptor for the given prototype. The - * prototype must be protoIdx-based. - */ -const char* dexProtoGetShorty(const DexProto* pProto) { - const DexProtoId* protoId = getProtoId(pProto); - - return dexStringById(pProto->dexFile, protoId->shortyIdx); -} - -/* - * Get the full method descriptor for the given prototype. - */ -const char* dexProtoGetMethodDescriptor(const DexProto* pProto, - DexStringCache* pCache) { - const DexFile* dexFile = pProto->dexFile; - const DexProtoId* protoId = getProtoId(pProto); - const DexTypeList* typeList = dexGetProtoParameters(dexFile, protoId); - size_t length = 3; // parens and terminating '\0' - u4 paramCount = (typeList == NULL) ? 0 : typeList->size; - u4 i; - - for (i = 0; i < paramCount; i++) { - u4 idx = dexTypeListGetIdx(typeList, i); - length += strlen(dexStringByTypeIdx(dexFile, idx)); - } - - length += strlen(dexStringByTypeIdx(dexFile, protoId->returnTypeIdx)); - - dexStringCacheAlloc(pCache, length); - - char *at = (char*) pCache->value; - *(at++) = '('; - - for (i = 0; i < paramCount; i++) { - u4 idx = dexTypeListGetIdx(typeList, i); - const char* desc = dexStringByTypeIdx(dexFile, idx); - strcpy(at, desc); - at += strlen(desc); - } - - *(at++) = ')'; - - strcpy(at, dexStringByTypeIdx(dexFile, protoId->returnTypeIdx)); - return pCache->value; -} - -/* - * Get a copy of the descriptor string associated with the given prototype. - * The returned pointer must be free()ed by the caller. - */ -char* dexProtoCopyMethodDescriptor(const DexProto* pProto) { - DexStringCache cache; - - dexStringCacheInit(&cache); - return dexStringCacheAbandon(&cache, - dexProtoGetMethodDescriptor(pProto, &cache)); -} - -/* - * Get the parameter descriptors for the given prototype. This is the - * concatenation of all the descriptors for all the parameters, in - * order, with no other adornment. - */ -const char* dexProtoGetParameterDescriptors(const DexProto* pProto, - DexStringCache* pCache) { - DexParameterIterator iterator; - size_t length = 1; /* +1 for the terminating '\0' */ - - dexParameterIteratorInit(&iterator, pProto); - - for (;;) { - const char* descriptor = dexParameterIteratorNextDescriptor(&iterator); - if (descriptor == NULL) { - break; - } - - length += strlen(descriptor); - } - - dexParameterIteratorInit(&iterator, pProto); - - dexStringCacheAlloc(pCache, length); - char *at = (char*) pCache->value; - - for (;;) { - const char* descriptor = dexParameterIteratorNextDescriptor(&iterator); - if (descriptor == NULL) { - break; - } - - strcpy(at, descriptor); - at += strlen(descriptor); - } - - return pCache->value; -} - -/* - * Get the type descriptor for the return type of the given prototype. - */ -const char* dexProtoGetReturnType(const DexProto* pProto) { - const DexProtoId* protoId = getProtoId(pProto); - return dexStringByTypeIdx(pProto->dexFile, protoId->returnTypeIdx); -} - -/* - * Get the parameter count of the given prototype. - */ -size_t dexProtoGetParameterCount(const DexProto* pProto) { - const DexProtoId* protoId = getProtoId(pProto); - const DexTypeList* typeList = - dexGetProtoParameters(pProto->dexFile, protoId); - return (typeList == NULL) ? 0 : typeList->size; -} - -/* - * Compute the number of parameter words (u4 units) required by the - * given prototype. For example, if the method takes (int, long) and - * returns double, this would return 3 (one for the int, two for the - * long, and the return type isn't relevant). - */ -int dexProtoComputeArgsSize(const DexProto* pProto) { - const char* shorty = dexProtoGetShorty(pProto); - int count = 0; - - /* Skip the return type. */ - shorty++; - - for (;;) { - switch (*(shorty++)) { - case '\0': { - return count; - } - case 'D': - case 'J': { - count += 2; - break; - } - default: { - count++; - break; - } - } - } -} - -/* - * Common implementation for dexProtoCompare() and dexProtoCompareParameters(). - */ -static int protoCompare(const DexProto* pProto1, const DexProto* pProto2, - bool compareReturnType) { - - if (pProto1 == pProto2) { - // Easy out. - return 0; - } else { - const DexFile* dexFile1 = pProto1->dexFile; - const DexProtoId* protoId1 = getProtoId(pProto1); - const DexTypeList* typeList1 = - dexGetProtoParameters(dexFile1, protoId1); - int paramCount1 = (typeList1 == NULL) ? 0 : typeList1->size; - - const DexFile* dexFile2 = pProto2->dexFile; - const DexProtoId* protoId2 = getProtoId(pProto2); - const DexTypeList* typeList2 = - dexGetProtoParameters(dexFile2, protoId2); - int paramCount2 = (typeList2 == NULL) ? 0 : typeList2->size; - - if (protoId1 == protoId2) { - // Another easy out. - return 0; - } - - // Compare return types. - - if (compareReturnType) { - int result = - strcmp(dexStringByTypeIdx(dexFile1, protoId1->returnTypeIdx), - dexStringByTypeIdx(dexFile2, protoId2->returnTypeIdx)); - - if (result != 0) { - return result; - } - } - - // Compare parameters. - - int minParam = (paramCount1 > paramCount2) ? paramCount2 : paramCount1; - int i; - - for (i = 0; i < minParam; i++) { - u4 idx1 = dexTypeListGetIdx(typeList1, i); - u4 idx2 = dexTypeListGetIdx(typeList2, i); - int result = - strcmp(dexStringByTypeIdx(dexFile1, idx1), - dexStringByTypeIdx(dexFile2, idx2)); - - if (result != 0) { - return result; - } - } - - if (paramCount1 < paramCount2) { - return -1; - } else if (paramCount1 > paramCount2) { - return 1; - } else { - return 0; - } - } -} - -/* - * Compare the two prototypes. The two prototypes are compared - * with the return type as the major order, then the first arguments, - * then second, etc. If two prototypes are identical except that one - * has extra arguments, then the shorter argument is considered the - * earlier one in sort order (similar to strcmp()). - */ -int dexProtoCompare(const DexProto* pProto1, const DexProto* pProto2) { - return protoCompare(pProto1, pProto2, true); -} - -/* - * Compare the two prototypes. The two prototypes are compared - * with the first argument as the major order, then second, etc. If two - * prototypes are identical except that one has extra arguments, then the - * shorter argument is considered the earlier one in sort order (similar - * to strcmp()). - */ -int dexProtoCompareParameters(const DexProto* pProto1, const DexProto* pProto2){ - return protoCompare(pProto1, pProto2, false); -} - - -/* - * Helper for dexProtoCompareToDescriptor(), which gets the return type - * descriptor from a method descriptor string. - */ -static const char* methodDescriptorReturnType(const char* descriptor) { - const char* result = strchr(descriptor, ')'); - - if (result == NULL) { - return NULL; - } - - // The return type is the character just past the ')'. - return result + 1; -} - -/* - * Helper for dexProtoCompareToDescriptor(), which indicates the end - * of an embedded argument type descriptor, which is also the - * beginning of the next argument type descriptor. Since this is for - * argument types, it doesn't accept 'V' as a valid type descriptor. - */ -static const char* methodDescriptorNextType(const char* descriptor) { - // Skip any array references. - - while (*descriptor == '[') { - descriptor++; - } - - switch (*descriptor) { - case 'B': case 'C': case 'D': case 'F': - case 'I': case 'J': case 'S': case 'Z': { - return descriptor + 1; - } - case 'L': { - const char* result = strchr(descriptor + 1, ';'); - if (result != NULL) { - // The type ends just past the ';'. - return result + 1; - } - } - } - - return NULL; -} - -/* - * Compare a prototype and a string method descriptor. The comparison - * is done as if the descriptor were converted to a prototype and compared - * with dexProtoCompare(). - */ -int dexProtoCompareToDescriptor(const DexProto* proto, - const char* descriptor) { - // First compare the return types. - - int result = strcmp(dexProtoGetReturnType(proto), - methodDescriptorReturnType(descriptor)); - - if (result != 0) { - return result; - } - - // The return types match, so we have to check arguments. - - DexParameterIterator iterator; - dexParameterIteratorInit(&iterator, proto); - - // Skip the '('. - assert (*descriptor == '('); - descriptor++; - - for (;;) { - const char* protoDesc = dexParameterIteratorNextDescriptor(&iterator); - - if (*descriptor == ')') { - // It's the end of the descriptor string. - if (protoDesc == NULL) { - // It's also the end of the prototype's arguments. - return 0; - } else { - // The prototype still has more arguments. - return 1; - } - } - - if (protoDesc == NULL) { - /* - * The prototype doesn't have arguments left, but the - * descriptor string does. - */ - return -1; - } - - // Both prototype and descriptor have arguments. Compare them. - - const char* nextDesc = methodDescriptorNextType(descriptor); - - for (;;) { - char c1 = *(protoDesc++); - char c2 = (descriptor < nextDesc) ? *(descriptor++) : '\0'; - - if (c1 < c2) { - // This includes the case where the proto is shorter. - return -1; - } else if (c1 > c2) { - // This includes the case where the desc is shorter. - return 1; - } else if (c1 == '\0') { - // The two types are equal in length. (c2 necessarily == '\0'.) - break; - } - } - - /* - * If we made it here, the two arguments matched, and - * descriptor == nextDesc. - */ - } -} - - -/* - * =========================================================================== - * Parameter Iterators - * =========================================================================== - */ - -/* - * Initialize the given DexParameterIterator to be at the start of the - * parameters of the given prototype. - */ -void dexParameterIteratorInit(DexParameterIterator* pIterator, - const DexProto* pProto) { - pIterator->proto = pProto; - pIterator->cursor = 0; - - pIterator->parameters = - dexGetProtoParameters(pProto->dexFile, getProtoId(pProto)); - pIterator->parameterCount = (pIterator->parameters == NULL) ? 0 - : pIterator->parameters->size; -} - -/* - * Get the type_id index for the next parameter, if any. This returns - * kDexNoIndex if the last parameter has already been consumed. - */ -u4 dexParameterIteratorNextIndex(DexParameterIterator* pIterator) { - int cursor = pIterator->cursor; - int parameterCount = pIterator->parameterCount; - - if (cursor >= parameterCount) { - // The iteration is complete. - return kDexNoIndex; - } else { - u4 idx = dexTypeListGetIdx(pIterator->parameters, cursor); - pIterator->cursor++; - return idx; - } -} - -/* - * Get the type descriptor for the next parameter, if any. This returns - * NULL if the last parameter has already been consumed. - */ -const char* dexParameterIteratorNextDescriptor( - DexParameterIterator* pIterator) { - u4 idx = dexParameterIteratorNextIndex(pIterator); - - if (idx == kDexNoIndex) { - return NULL; - } - - return dexStringByTypeIdx(pIterator->proto->dexFile, idx); -} - diff --git a/libdex/DexProto.h b/libdex/DexProto.h deleted file mode 100644 index 1ef577b5b..000000000 --- a/libdex/DexProto.h +++ /dev/null @@ -1,216 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions for dealing with method prototypes - */ - -#ifndef _LIBDEX_DEXPROTO -#define _LIBDEX_DEXPROTO - -#include "DexFile.h" - -/* - * Single-thread single-string cache. This structure holds a pointer to - * a string which is semi-automatically manipulated by some of the - * method prototype functions. Functions which use in this struct - * generally return a string that is valid until the next - * time the same DexStringCache is used. - */ -typedef struct DexStringCache { - char* value; /* the latest value */ - size_t allocatedSize; /* size of the allocated buffer, if allocated */ - char buffer[120]; /* buffer used to hold small-enough results */ -} DexStringCache; - -/* - * Initialize the given DexStringCache. Use this function before passing - * one into any other function. - */ -void dexStringCacheInit(DexStringCache* pCache); - -/* - * Release the allocated contents of the given DexStringCache, if any. - * Use this function after your last use of a DexStringCache. - */ -void dexStringCacheRelease(DexStringCache* pCache); - -/* - * If the given DexStringCache doesn't already point at the given value, - * make a copy of it into the cache. This always returns a writable - * pointer to the contents (whether or not a copy had to be made). This - * function is intended to be used after making a call that at least - * sometimes doesn't populate a DexStringCache. - */ -char* dexStringCacheEnsureCopy(DexStringCache* pCache, const char* value); - -/* - * Abandon the given DexStringCache, and return a writable copy of the - * given value (reusing the string cache's allocation if possible). - * The return value must be free()d by the caller. Use this instead of - * dexStringCacheRelease() if you want the buffer to survive past the - * scope of the DexStringCache. - */ -char* dexStringCacheAbandon(DexStringCache* pCache, const char* value); - -/* - * Method prototype structure, which refers to a protoIdx in a - * particular DexFile. - */ -typedef struct DexProto { - const DexFile* dexFile; /* file the idx refers to */ - u4 protoIdx; /* index into proto_ids table of dexFile */ -} DexProto; - -/* - * Set the given DexProto to refer to the prototype of the given MethodId. - */ -DEX_INLINE void dexProtoSetFromMethodId(DexProto* pProto, - const DexFile* pDexFile, const DexMethodId* pMethodId) -{ - pProto->dexFile = pDexFile; - pProto->protoIdx = pMethodId->protoIdx; -} - -/* - * Get the short-form method descriptor for the given prototype. The - * prototype must be protoIdx-based. - */ -const char* dexProtoGetShorty(const DexProto* pProto); - -/* - * Get the full method descriptor for the given prototype. - */ -const char* dexProtoGetMethodDescriptor(const DexProto* pProto, - DexStringCache* pCache); - -/* - * Get a copy of the descriptor string associated with the given prototype. - * The returned pointer must be free()ed by the caller. - */ -char* dexProtoCopyMethodDescriptor(const DexProto* pProto); - -/* - * Get the parameter descriptors for the given prototype. This is the - * concatenation of all the descriptors for all the parameters, in - * order, with no other adornment. - */ -const char* dexProtoGetParameterDescriptors(const DexProto* pProto, - DexStringCache* pCache); - -/* - * Return the utf-8 encoded descriptor string from the proto of a MethodId. - */ -DEX_INLINE const char* dexGetDescriptorFromMethodId(const DexFile* pDexFile, - const DexMethodId* pMethodId, DexStringCache* pCache) -{ - DexProto proto; - - dexProtoSetFromMethodId(&proto, pDexFile, pMethodId); - return dexProtoGetMethodDescriptor(&proto, pCache); -} - -/* - * Get a copy of the utf-8 encoded method descriptor string from the - * proto of a MethodId. The returned pointer must be free()ed by the - * caller. - */ -DEX_INLINE char* dexCopyDescriptorFromMethodId(const DexFile* pDexFile, - const DexMethodId* pMethodId) -{ - DexProto proto; - - dexProtoSetFromMethodId(&proto, pDexFile, pMethodId); - return dexProtoCopyMethodDescriptor(&proto); -} - -/* - * Get the type descriptor for the return type of the given prototype. - */ -const char* dexProtoGetReturnType(const DexProto* pProto); - -/* - * Get the parameter count of the given prototype. - */ -size_t dexProtoGetParameterCount(const DexProto* pProto); - -/* - * Compute the number of parameter words (u4 units) required by the - * given prototype. For example, if the method takes (int, long) and - * returns double, this would return 3 (one for the int, two for the - * long, and the return type isn't relevant). - */ -int dexProtoComputeArgsSize(const DexProto* pProto); - -/* - * Compare the two prototypes. The two prototypes are compared - * with the return type as the major order, then the first arguments, - * then second, etc. If two prototypes are identical except that one - * has extra arguments, then the shorter argument is considered the - * earlier one in sort order (similar to strcmp()). - */ -int dexProtoCompare(const DexProto* pProto1, const DexProto* pProto2); - -/* - * Compare the two prototypes. The two prototypes are compared - * with the first argument as the major order, then second, etc. If two - * prototypes are identical except that one has extra arguments, then the - * shorter argument is considered the earlier one in sort order (similar - * to strcmp()). - */ -int dexProtoCompareParameters(const DexProto* pProto1, const DexProto* pProto2); - -/* - * Compare a prototype and a string method descriptor. The comparison - * is done as if the descriptor were converted to a prototype and compared - * with dexProtoCompare(). - */ -int dexProtoCompareToDescriptor(const DexProto* proto, const char* descriptor); - -/* - * Single-thread prototype parameter iterator. This structure holds a - * pointer to a prototype and its parts, along with a cursor. - */ -typedef struct DexParameterIterator { - const DexProto* proto; - const DexTypeList* parameters; - int parameterCount; - int cursor; -} DexParameterIterator; - -/* - * Initialize the given DexParameterIterator to be at the start of the - * parameters of the given prototype. - */ -void dexParameterIteratorInit(DexParameterIterator* pIterator, - const DexProto* pProto); - -/* - * Get the type_id index for the next parameter, if any. This returns - * kDexNoIndex if the last parameter has already been consumed. - */ -u4 dexParameterIteratorNextIndex(DexParameterIterator* pIterator); - -/* - * Get the type descriptor for the next parameter, if any. This returns - * NULL if the last parameter has already been consumed. - */ -const char* dexParameterIteratorNextDescriptor( - DexParameterIterator* pIterator); - - - -#endif /*_LIBDEX_DEXPROTO*/ diff --git a/libdex/DexSwapVerify.c b/libdex/DexSwapVerify.c deleted file mode 100644 index 5ecda9ff0..000000000 --- a/libdex/DexSwapVerify.c +++ /dev/null @@ -1,2851 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Byte-swapping and verification of dex files. - */ - -#include "DexFile.h" -#include "DexClass.h" -#include "DexDataMap.h" -#include "DexProto.h" -#include "Leb128.h" - -#include <safe_iop.h> -#include <zlib.h> - -#include <stdlib.h> -#include <string.h> - -#ifndef __BYTE_ORDER -# error "byte ordering not defined" -#endif - -#if __BYTE_ORDER == __LITTLE_ENDIAN -# define SWAP2(_value) (_value) -# define SWAP4(_value) (_value) -# define SWAP8(_value) (_value) -#else -# define SWAP2(_value) endianSwapU2((_value)) -# define SWAP4(_value) endianSwapU4((_value)) -# define SWAP8(_value) endianSwapU8((_value)) -static u2 endianSwapU2(u2 value) { - return (value >> 8) | (value << 8); -} -static u4 endianSwapU4(u4 value) { - /* ABCD --> CDAB --> DCBA */ - value = (value >> 16) | (value << 16); - return ((value & 0xff00ff00) >> 8) | ((value << 8) & 0xff00ff00); -} -static u8 endianSwapU8(u8 value) { - /* ABCDEFGH --> EFGHABCD --> GHEFCDAB --> HGFEDCBA */ - value = (value >> 32) | (value << 32); - value = ((value & 0xffff0000ffff0000ULL) >> 16) | - ((value << 16) & 0xffff0000ffff0000ULL); - return ((value & 0xff00ff00ff00ff00ULL) >> 8) | - ((value << 8) & 0xff00ff00ff00ff00ULL); -} -#endif - -#define SWAP_FIELD2(_field) (_field) = SWAP2(_field) -#define SWAP_FIELD4(_field) (_field) = SWAP4(_field) -#define SWAP_FIELD8(_field) (_field) = SWAP8(_field) - -/* - * Some information we pass around to help verify values. - */ -typedef struct CheckState { - const DexHeader* pHeader; - const u1* fileStart; - const u1* fileEnd; // points to fileStart + fileLen - u4 fileLen; - DexDataMap* pDataMap; // set after map verification - const DexFile* pDexFile; // set after intraitem verification - const void* previousItem; // set during section iteration -} CheckState; - -/* - * Return the file offset of the given pointer. - */ -static inline u4 fileOffset(const CheckState* state, const void* ptr) { - return ((const u1*) ptr) - state->fileStart; -} - -/* - * Return a pointer for the given file offset. - */ -static inline void* filePointer(const CheckState* state, u4 offset) { - return (void*) (state->fileStart + offset); -} - -/* - * Verify that a pointer range, start inclusive to end exclusive, only - * covers bytes in the file and doesn't point beyond the end of the - * file. That is, the start must indicate a valid byte or may point at - * the byte just past the end of the file (but no further), and the - * end must be no less than the start and must also not point beyond - * the byte just past the end of the file. - */ -static inline bool checkPtrRange(const CheckState* state, - const void* start, const void* end, const char* label) { - const void* fileStart = state->fileStart; - const void* fileEnd = state->fileEnd; - if ((start < fileStart) || (start > fileEnd) - || (end < start) || (end > fileEnd)) { - LOGW("Bad offset range for %s: 0x%x..0x%x\n", label, - fileOffset(state, start), fileOffset(state, end)); - return false; - } - return true; -} - -/* - * Verify that a range of offsets, start inclusive to end exclusive, - * are all valid. That is, the start must indicate a valid byte or may - * point at the byte just past the end of the file (but no further), - * and the end must be no less than the start and must also not point - * beyond the byte just past the end of the file. - * - * Assumes "const CheckState* state". - */ -#define CHECK_OFFSET_RANGE(_start, _end) { \ - const u1* _startPtr = filePointer(state, (_start)); \ - const u1* _endPtr = filePointer(state, (_end)); \ - if (!checkPtrRange(state, _startPtr, _endPtr, \ - #_start ".." #_end)) { \ - return 0; \ - } \ - } - -/* - * Verify that a pointer range, start inclusive to end exclusive, only - * covers bytes in the file and doesn't point beyond the end of the - * file. That is, the start must indicate a valid byte or may point at - * the byte just past the end of the file (but no further), and the - * end must be no less than the start and must also not point beyond - * the byte just past the end of the file. - * - * Assumes "const CheckState* state". - */ -#define CHECK_PTR_RANGE(_start, _end) { \ - if (!checkPtrRange(state, (_start), (_end), #_start ".." #_end)) { \ - return 0; \ - } \ - } - -/* - * Make sure a list of items fits entirely within the file. - * - * Assumes "const CheckState* state" and "typeof(_count) == typeof(_elemSize)" - * If the type sizes or signs are mismatched, this will return 0. - */ -#define CHECK_LIST_SIZE(_ptr, _count, _elemSize) { \ - const u1* _start = (const u1*) (_ptr); \ - const u1* _end = _start + ((_count) * (_elemSize)); \ - if (!safe_mul(NULL, (_count), (_elemSize)) || \ - !checkPtrRange(state, _start, _end, #_ptr)) { \ - return 0; \ - } \ - } - -/* - * Swap a field that is known to hold an absolute DEX file offset. Note: - * This does not check to see that the swapped offset points within the - * mapped file, since that should be handled (with even more rigor) by - * the cross-verification phase. - * - * Assumes "const CheckState* state". - */ -#define SWAP_OFFSET4(_field) { \ - SWAP_FIELD4((_field)); \ - } - -/* - * Verify that an index falls in a valid range. - */ -#define CHECK_INDEX(_field, _limit) { \ - if ((_field) >= (_limit)) { \ - LOGW("Bad index: %s(%u) > %s(%u)\n", \ - #_field, (u4)(_field), #_limit, (u4)(_limit)); \ - return 0; \ - } \ - } - -/* - * Swap an index, and verify that it falls in a valid range. - */ -#define SWAP_INDEX2(_field, _limit) { \ - SWAP_FIELD2((_field)); \ - CHECK_INDEX((_field), (_limit)); \ - } - -/* - * Verify that an index falls in a valid range or is kDexNoIndex. - */ -#define CHECK_INDEX_OR_NOINDEX(_field, _limit) { \ - if ((_field) != kDexNoIndex && (_field) >= (_limit)) { \ - LOGW("Bad index: %s(%u) > %s(%u)\n", \ - #_field, (u4)(_field), #_limit, (u4)(_limit)); \ - return 0; \ - } \ - } - -/* - * Swap an index, and verify that it falls in a valid range. - */ -#define SWAP_INDEX4(_field, _limit) { \ - SWAP_FIELD4((_field)); \ - CHECK_INDEX((_field), (_limit)); \ - } - -/* - * Swap an index, and verify that it falls in a valid range or is - * kDexNoIndex. - */ -#define SWAP_INDEX4_OR_NOINDEX(_field, _limit) { \ - SWAP_FIELD4((_field)); \ - CHECK_INDEX_OR_NOINDEX((_field), (_limit)); \ - } - -/* Verify the definer of a given field_idx. */ -static bool verifyFieldDefiner(const CheckState* state, u4 definingClass, - u4 fieldIdx) { - const DexFieldId* field = dexGetFieldId(state->pDexFile, fieldIdx); - return field->classIdx == definingClass; -} - -/* Verify the definer of a given method_idx. */ -static bool verifyMethodDefiner(const CheckState* state, u4 definingClass, - u4 methodIdx) { - const DexMethodId* meth = dexGetMethodId(state->pDexFile, methodIdx); - return meth->classIdx == definingClass; -} - -/* - * Swap the header_item. - */ -static bool swapDexHeader(const CheckState* state, DexHeader* pHeader) -{ - CHECK_PTR_RANGE(pHeader, pHeader + 1); - - // magic is ok - SWAP_FIELD4(pHeader->checksum); - // signature is ok - SWAP_FIELD4(pHeader->fileSize); - SWAP_FIELD4(pHeader->headerSize); - SWAP_FIELD4(pHeader->endianTag); - SWAP_FIELD4(pHeader->linkSize); - SWAP_OFFSET4(pHeader->linkOff); - SWAP_OFFSET4(pHeader->mapOff); - SWAP_FIELD4(pHeader->stringIdsSize); - SWAP_OFFSET4(pHeader->stringIdsOff); - SWAP_FIELD4(pHeader->typeIdsSize); - SWAP_OFFSET4(pHeader->typeIdsOff); - SWAP_FIELD4(pHeader->fieldIdsSize); - SWAP_OFFSET4(pHeader->fieldIdsOff); - SWAP_FIELD4(pHeader->methodIdsSize); - SWAP_OFFSET4(pHeader->methodIdsOff); - SWAP_FIELD4(pHeader->protoIdsSize); - SWAP_OFFSET4(pHeader->protoIdsOff); - SWAP_FIELD4(pHeader->classDefsSize); - SWAP_OFFSET4(pHeader->classDefsOff); - SWAP_FIELD4(pHeader->dataSize); - SWAP_OFFSET4(pHeader->dataOff); - - if (pHeader->endianTag != kDexEndianConstant) { - LOGE("Unexpected endian_tag: 0x%x\n", pHeader->endianTag); - return false; - } - - // Assign variables so the diagnostic is prettier. (Hooray for macros.) - u4 linkOff = pHeader->linkOff; - u4 linkEnd = linkOff + pHeader->linkSize; - u4 dataOff = pHeader->dataOff; - u4 dataEnd = dataOff + pHeader->dataSize; - CHECK_OFFSET_RANGE(linkOff, linkEnd); - CHECK_OFFSET_RANGE(dataOff, dataEnd); - - /* - * Note: The offsets and ranges of the other header items end up getting - * checked during the first iteration over the map. - */ - - return true; -} - -/* Check the header section for sanity. */ -static bool checkHeaderSection(const CheckState* state, u4 sectionOffset, - u4 sectionCount, u4* endOffset) { - if (sectionCount != 1) { - LOGE("Multiple header items\n"); - return false; - } - - if (sectionOffset != 0) { - LOGE("Header at 0x%x; not at start of file\n", sectionOffset); - return false; - } - - const DexHeader* pHeader = filePointer(state, 0); - *endOffset = pHeader->headerSize; - return true; -} - -/* - * Helper for swapMap(), which turns a map type constant into a small - * one-bit-on integer, suitable for use in an int-sized bit set. - */ -static u4 mapTypeToBitMask(int mapType) { - switch (mapType) { - case kDexTypeHeaderItem: return 1 << 0; - case kDexTypeStringIdItem: return 1 << 1; - case kDexTypeTypeIdItem: return 1 << 2; - case kDexTypeProtoIdItem: return 1 << 3; - case kDexTypeFieldIdItem: return 1 << 4; - case kDexTypeMethodIdItem: return 1 << 5; - case kDexTypeClassDefItem: return 1 << 6; - case kDexTypeMapList: return 1 << 7; - case kDexTypeTypeList: return 1 << 8; - case kDexTypeAnnotationSetRefList: return 1 << 9; - case kDexTypeAnnotationSetItem: return 1 << 10; - case kDexTypeClassDataItem: return 1 << 11; - case kDexTypeCodeItem: return 1 << 12; - case kDexTypeStringDataItem: return 1 << 13; - case kDexTypeDebugInfoItem: return 1 << 14; - case kDexTypeAnnotationItem: return 1 << 15; - case kDexTypeEncodedArrayItem: return 1 << 16; - case kDexTypeAnnotationsDirectoryItem: return 1 << 17; - default: { - LOGE("Unknown map item type %04x\n", mapType); - return 0; - } - } -} - -/* - * Helper for swapMap(), which indicates if an item type should appear - * in the data section. - */ -static bool isDataSectionType(int mapType) { - switch (mapType) { - case kDexTypeHeaderItem: - case kDexTypeStringIdItem: - case kDexTypeTypeIdItem: - case kDexTypeProtoIdItem: - case kDexTypeFieldIdItem: - case kDexTypeMethodIdItem: - case kDexTypeClassDefItem: { - return false; - } - } - - return true; -} - -/* - * Swap the map_list and verify what we can about it. Also, if verification - * passes, allocate the state's DexDataMap. - */ -static bool swapMap(CheckState* state, DexMapList* pMap) -{ - DexMapItem* item = pMap->list; - u4 count = pMap->size; - u4 dataItemCount = 0; // Total count of items in the data section. - u4 dataItemsLeft = state->pHeader->dataSize; // See use below. - u4 usedBits = 0; // Bit set: one bit per section - bool first = true; - u4 lastOffset = 0; - - CHECK_LIST_SIZE(item, count, sizeof(DexMapItem)); - - while (count--) { - SWAP_FIELD2(item->type); - SWAP_FIELD2(item->unused); - SWAP_FIELD4(item->size); - SWAP_OFFSET4(item->offset); - - if (first) { - first = false; - } else if (lastOffset >= item->offset) { - LOGE("Out-of-order map item: 0x%x then 0x%x\n", - lastOffset, item->offset); - return false; - } - - if (item->offset >= state->pHeader->fileSize) { - LOGE("Map item after end of file: %x, size 0x%x\n", - item->offset, state->pHeader->fileSize); - return false; - } - - if (isDataSectionType(item->type)) { - u4 count = item->size; - - /* - * This sanity check on the data section items ensures that - * there are no more items than the number of bytes in - * the data section. - */ - if (count > dataItemsLeft) { - LOGE("Unrealistically many items in the data section: " - "at least %d\n", dataItemCount + count); - return false; - } - - dataItemsLeft -= count; - dataItemCount += count; - } - - u4 bit = mapTypeToBitMask(item->type); - - if (bit == 0) { - return false; - } - - if ((usedBits & bit) != 0) { - LOGE("Duplicate map section of type 0x%x\n", item->type); - return false; - } - - usedBits |= bit; - lastOffset = item->offset; - item++; - } - - if ((usedBits & mapTypeToBitMask(kDexTypeHeaderItem)) == 0) { - LOGE("Map is missing header entry\n"); - return false; - } - - if ((usedBits & mapTypeToBitMask(kDexTypeMapList)) == 0) { - LOGE("Map is missing map_list entry\n"); - return false; - } - - if (((usedBits & mapTypeToBitMask(kDexTypeStringIdItem)) == 0) - && ((state->pHeader->stringIdsOff != 0) - || (state->pHeader->stringIdsSize != 0))) { - LOGE("Map is missing string_ids entry\n"); - return false; - } - - if (((usedBits & mapTypeToBitMask(kDexTypeTypeIdItem)) == 0) - && ((state->pHeader->typeIdsOff != 0) - || (state->pHeader->typeIdsSize != 0))) { - LOGE("Map is missing type_ids entry\n"); - return false; - } - - if (((usedBits & mapTypeToBitMask(kDexTypeProtoIdItem)) == 0) - && ((state->pHeader->protoIdsOff != 0) - || (state->pHeader->protoIdsSize != 0))) { - LOGE("Map is missing proto_ids entry\n"); - return false; - } - - if (((usedBits & mapTypeToBitMask(kDexTypeFieldIdItem)) == 0) - && ((state->pHeader->fieldIdsOff != 0) - || (state->pHeader->fieldIdsSize != 0))) { - LOGE("Map is missing field_ids entry\n"); - return false; - } - - if (((usedBits & mapTypeToBitMask(kDexTypeMethodIdItem)) == 0) - && ((state->pHeader->methodIdsOff != 0) - || (state->pHeader->methodIdsSize != 0))) { - LOGE("Map is missing method_ids entry\n"); - return false; - } - - if (((usedBits & mapTypeToBitMask(kDexTypeClassDefItem)) == 0) - && ((state->pHeader->classDefsOff != 0) - || (state->pHeader->classDefsSize != 0))) { - LOGE("Map is missing class_defs entry\n"); - return false; - } - - state->pDataMap = dexDataMapAlloc(dataItemCount); - if (state->pDataMap == NULL) { - LOGE("Unable to allocate data map (size 0x%x)\n", dataItemCount); - return false; - } - - return true; -} - -/* Check the map section for sanity. */ -static bool checkMapSection(const CheckState* state, u4 sectionOffset, - u4 sectionCount, u4* endOffset) { - if (sectionCount != 1) { - LOGE("Multiple map list items"); - return false; - } - - if (sectionOffset != state->pHeader->mapOff) { - LOGE("Map not at header-defined offset: 0x%x, expected 0x%x\n", - sectionOffset, state->pHeader->mapOff); - return false; - } - - const DexMapList* pMap = filePointer(state, sectionOffset); - - *endOffset = - sectionOffset + sizeof(u4) + (pMap->size * sizeof(DexMapItem)); - return true; -} - -/* Perform byte-swapping and intra-item verification on string_id_item. */ -static void* swapStringIdItem(const CheckState* state, void* ptr) { - DexStringId* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_OFFSET4(item->stringDataOff); - - return item + 1; -} - -/* Perform cross-item verification of string_id_item. */ -static void* crossVerifyStringIdItem(const CheckState* state, void* ptr) { - const DexStringId* item = ptr; - - if (!dexDataMapVerify(state->pDataMap, - item->stringDataOff, kDexTypeStringDataItem)) { - return NULL; - } - - const DexStringId* item0 = state->previousItem; - if (item0 != NULL) { - // Check ordering. - const char* s0 = dexGetStringData(state->pDexFile, item0); - const char* s1 = dexGetStringData(state->pDexFile, item); - if (dexUtf8Cmp(s0, s1) >= 0) { - LOGE("Out-of-order string_ids: '%s' then '%s'\n", s0, s1); - return NULL; - } - } - - return (void*) (item + 1); -} - -/* Perform byte-swapping and intra-item verification on type_id_item. */ -static void* swapTypeIdItem(const CheckState* state, void* ptr) { - DexTypeId* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_INDEX4(item->descriptorIdx, state->pHeader->stringIdsSize); - - return item + 1; -} - -/* Perform cross-item verification of type_id_item. */ -static void* crossVerifyTypeIdItem(const CheckState* state, void* ptr) { - const DexTypeId* item = ptr; - const char* descriptor = - dexStringById(state->pDexFile, item->descriptorIdx); - - if (!dexIsValidTypeDescriptor(descriptor)) { - LOGE("Invalid type descriptor: '%s'\n", descriptor); - return NULL; - } - - const DexTypeId* item0 = state->previousItem; - if (item0 != NULL) { - // Check ordering. This relies on string_ids being in order. - if (item0->descriptorIdx >= item->descriptorIdx) { - LOGE("Out-of-order type_ids: 0x%x then 0x%x\n", - item0->descriptorIdx, item->descriptorIdx); - return NULL; - } - } - - return (void*) (item + 1); -} - -/* Perform byte-swapping and intra-item verification on proto_id_item. */ -static void* swapProtoIdItem(const CheckState* state, void* ptr) { - DexProtoId* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_INDEX4(item->shortyIdx, state->pHeader->stringIdsSize); - SWAP_INDEX4(item->returnTypeIdx, state->pHeader->typeIdsSize); - SWAP_OFFSET4(item->parametersOff); - - return item + 1; -} - -/* Helper for crossVerifyProtoIdItem(), which checks a shorty character - * to see if it is compatible with a type descriptor. Returns true if - * so, false if not. */ -static bool shortyDescMatch(char shorty, const char* descriptor, bool - isReturnType) { - switch (shorty) { - case 'V': { - if (!isReturnType) { - LOGE("Invalid use of void\n"); - return false; - } - // Fall through. - } - case 'B': - case 'C': - case 'D': - case 'F': - case 'I': - case 'J': - case 'S': - case 'Z': { - if ((descriptor[0] != shorty) || (descriptor[1] != '\0')) { - LOGE("Shorty vs. primitive type mismatch: '%c', '%s'\n", - shorty, descriptor); - return false; - } - break; - } - case 'L': { - if ((descriptor[0] != 'L') && (descriptor[0] != '[')) { - LOGE("Shorty vs. type mismatch: '%c', '%s'\n", - shorty, descriptor); - return false; - } - break; - } - default: { - LOGE("Bogus shorty: '%c'\n", shorty); - return false; - } - } - - return true; -} - -/* Perform cross-item verification of proto_id_item. */ -static void* crossVerifyProtoIdItem(const CheckState* state, void* ptr) { - const DexProtoId* item = ptr; - const char* shorty = - dexStringById(state->pDexFile, item->shortyIdx); - - if (!dexDataMapVerify0Ok(state->pDataMap, - item->parametersOff, kDexTypeTypeList)) { - return NULL; - } - - if (!shortyDescMatch(*shorty, - dexStringByTypeIdx(state->pDexFile, item->returnTypeIdx), - true)) { - return NULL; - } - - u4 protoIdx = item - state->pDexFile->pProtoIds; - DexProto proto = { state->pDexFile, protoIdx }; - DexParameterIterator iterator; - - dexParameterIteratorInit(&iterator, &proto); - shorty++; // Skip the return type. - - for (;;) { - const char *desc = dexParameterIteratorNextDescriptor(&iterator); - - if (desc == NULL) { - break; - } - - if (*shorty == '\0') { - LOGE("Shorty is too short\n"); - return NULL; - } - - if (!shortyDescMatch(*shorty, desc, false)) { - return NULL; - } - - shorty++; - } - - if (*shorty != '\0') { - LOGE("Shorty is too long\n"); - return NULL; - } - - const DexProtoId* item0 = state->previousItem; - if (item0 != NULL) { - // Check ordering. This relies on type_ids being in order. - if (item0->returnTypeIdx > item->returnTypeIdx) { - LOGE("Out-of-order proto_id return types\n"); - return NULL; - } else if (item0->returnTypeIdx == item->returnTypeIdx) { - bool badOrder = false; - DexProto proto0 = { state->pDexFile, protoIdx - 1 }; - DexParameterIterator iterator0; - - dexParameterIteratorInit(&iterator, &proto); - dexParameterIteratorInit(&iterator0, &proto0); - - for (;;) { - u4 idx0 = dexParameterIteratorNextIndex(&iterator0); - u4 idx1 = dexParameterIteratorNextIndex(&iterator); - - if (idx1 == kDexNoIndex) { - badOrder = true; - break; - } - - if (idx0 == kDexNoIndex) { - break; - } - - if (idx0 < idx1) { - break; - } else if (idx0 > idx1) { - badOrder = true; - break; - } - } - - if (badOrder) { - LOGE("Out-of-order proto_id arguments\n"); - return NULL; - } - } - } - - return (void*) (item + 1); -} - -/* Perform byte-swapping and intra-item verification on field_id_item. */ -static void* swapFieldIdItem(const CheckState* state, void* ptr) { - DexFieldId* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_INDEX2(item->classIdx, state->pHeader->typeIdsSize); - SWAP_INDEX2(item->typeIdx, state->pHeader->typeIdsSize); - SWAP_INDEX4(item->nameIdx, state->pHeader->stringIdsSize); - - return item + 1; -} - -/* Perform cross-item verification of field_id_item. */ -static void* crossVerifyFieldIdItem(const CheckState* state, void* ptr) { - const DexFieldId* item = ptr; - const char* s; - - s = dexStringByTypeIdx(state->pDexFile, item->classIdx); - if (!dexIsClassDescriptor(s)) { - LOGE("Invalid descriptor for class_idx: '%s'\n", s); - return NULL; - } - - s = dexStringByTypeIdx(state->pDexFile, item->typeIdx); - if (!dexIsFieldDescriptor(s)) { - LOGE("Invalid descriptor for type_idx: '%s'\n", s); - return NULL; - } - - s = dexStringById(state->pDexFile, item->nameIdx); - if (!dexIsValidMemberName(s)) { - LOGE("Invalid name: '%s'\n", s); - return NULL; - } - - const DexFieldId* item0 = state->previousItem; - if (item0 != NULL) { - // Check ordering. This relies on the other sections being in order. - bool done = false; - bool bogus = false; - - if (item0->classIdx > item->classIdx) { - bogus = true; - done = true; - } else if (item0->classIdx < item->classIdx) { - done = true; - } - - if (!done) { - if (item0->nameIdx > item->nameIdx) { - bogus = true; - done = true; - } else if (item0->nameIdx < item->nameIdx) { - done = true; - } - } - - if (!done) { - if (item0->typeIdx >= item->typeIdx) { - bogus = true; - } - } - - if (bogus) { - LOGE("Out-of-order field_ids\n"); - return NULL; - } - } - - return (void*) (item + 1); -} - -/* Perform byte-swapping and intra-item verification on method_id_item. */ -static void* swapMethodIdItem(const CheckState* state, void* ptr) { - DexMethodId* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_INDEX2(item->classIdx, state->pHeader->typeIdsSize); - SWAP_INDEX2(item->protoIdx, state->pHeader->protoIdsSize); - SWAP_INDEX4(item->nameIdx, state->pHeader->stringIdsSize); - - return item + 1; -} - -/* Perform cross-item verification of method_id_item. */ -static void* crossVerifyMethodIdItem(const CheckState* state, void* ptr) { - const DexMethodId* item = ptr; - const char* s; - - s = dexStringByTypeIdx(state->pDexFile, item->classIdx); - if (!dexIsReferenceDescriptor(s)) { - LOGE("Invalid descriptor for class_idx: '%s'\n", s); - return NULL; - } - - s = dexStringById(state->pDexFile, item->nameIdx); - if (!dexIsValidMemberName(s)) { - LOGE("Invalid name: '%s'\n", s); - return NULL; - } - - const DexMethodId* item0 = state->previousItem; - if (item0 != NULL) { - // Check ordering. This relies on the other sections being in order. - bool done = false; - bool bogus = false; - - if (item0->classIdx > item->classIdx) { - bogus = true; - done = true; - } else if (item0->classIdx < item->classIdx) { - done = true; - } - - if (!done) { - if (item0->nameIdx > item->nameIdx) { - bogus = true; - done = true; - } else if (item0->nameIdx < item->nameIdx) { - done = true; - } - } - - if (!done) { - if (item0->protoIdx >= item->protoIdx) { - bogus = true; - } - } - - if (bogus) { - LOGE("Out-of-order method_ids\n"); - return NULL; - } - } - - return (void*) (item + 1); -} - -/* Perform byte-swapping and intra-item verification on class_def_item. */ -static void* swapClassDefItem(const CheckState* state, void* ptr) { - DexClassDef* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_INDEX4(item->classIdx, state->pHeader->typeIdsSize); - SWAP_FIELD4(item->accessFlags); - SWAP_INDEX4_OR_NOINDEX(item->superclassIdx, state->pHeader->typeIdsSize); - SWAP_OFFSET4(item->interfacesOff); - SWAP_INDEX4_OR_NOINDEX(item->sourceFileIdx, state->pHeader->stringIdsSize); - SWAP_OFFSET4(item->annotationsOff); - SWAP_OFFSET4(item->classDataOff); - - return item + 1; -} - -/* defined below */ -static u4 findFirstClassDataDefiner(const CheckState* state, - DexClassData* classData); -static u4 findFirstAnnotationsDirectoryDefiner(const CheckState* state, - const DexAnnotationsDirectoryItem* dir); - -/* Helper for crossVerifyClassDefItem(), which checks a class_data_item to - * make sure all its references are to a given class. */ -static bool verifyClassDataIsForDef(const CheckState* state, u4 offset, - u4 definerIdx) { - if (offset == 0) { - return true; - } - - const u1* data = filePointer(state, offset); - DexClassData* classData = dexReadAndVerifyClassData(&data, NULL); - - if (classData == NULL) { - // Shouldn't happen, but bail here just in case. - return false; - } - - /* - * The class_data_item verification ensures that - * it consistently refers to the same definer, so all we need to - * do is check the first one. - */ - u4 dataDefiner = findFirstClassDataDefiner(state, classData); - bool result = (dataDefiner == definerIdx) || (dataDefiner == kDexNoIndex); - - free(classData); - return result; -} - -/* Helper for crossVerifyClassDefItem(), which checks an - * annotations_directory_item to make sure all its references are to a - * given class. */ -static bool verifyAnnotationsDirectoryIsForDef(const CheckState* state, - u4 offset, u4 definerIdx) { - if (offset == 0) { - return true; - } - - const DexAnnotationsDirectoryItem* dir = filePointer(state, offset); - u4 annoDefiner = findFirstAnnotationsDirectoryDefiner(state, dir); - - return (annoDefiner == definerIdx) || (annoDefiner == kDexNoIndex); -} - -/* Perform cross-item verification of class_def_item. */ -static void* crossVerifyClassDefItem(const CheckState* state, void* ptr) { - const DexClassDef* item = ptr; - const char* descriptor = - dexStringByTypeIdx(state->pDexFile, item->classIdx); - - if (!dexIsClassDescriptor(descriptor)) { - LOGE("Invalid class: '%s'\n", descriptor); - return NULL; - } - - bool okay = - dexDataMapVerify0Ok(state->pDataMap, - item->interfacesOff, kDexTypeTypeList) - && dexDataMapVerify0Ok(state->pDataMap, - item->annotationsOff, kDexTypeAnnotationsDirectoryItem) - && dexDataMapVerify0Ok(state->pDataMap, - item->classDataOff, kDexTypeClassDataItem) - && dexDataMapVerify0Ok(state->pDataMap, - item->staticValuesOff, kDexTypeEncodedArrayItem); - - if (!okay) { - return NULL; - } - - if (item->superclassIdx != kDexNoIndex) { - descriptor = dexStringByTypeIdx(state->pDexFile, item->superclassIdx); - if (!dexIsClassDescriptor(descriptor)) { - LOGE("Invalid superclass: '%s'\n", descriptor); - return NULL; - } - } - - const DexTypeList* interfaces = - dexGetInterfacesList(state->pDexFile, item); - if (interfaces != NULL) { - u4 size = interfaces->size; - u4 i; - - /* - * Ensure that all interfaces refer to classes (not arrays or - * primitives). - */ - for (i = 0; i < size; i++) { - descriptor = dexStringByTypeIdx(state->pDexFile, - dexTypeListGetIdx(interfaces, i)); - if (!dexIsClassDescriptor(descriptor)) { - LOGE("Invalid interface: '%s'\n", descriptor); - return NULL; - } - } - - /* - * Ensure that there are no duplicates. This is an O(N^2) test, - * but in practice the number of interfaces implemented by any - * given class is low. I will buy a milkshake for the - * first person to show me a realistic case for which this test - * would be unacceptably slow. - */ - for (i = 1; i < size; i++) { - u4 idx1 = dexTypeListGetIdx(interfaces, i); - u4 j; - for (j = 0; j < i; j++) { - u4 idx2 = dexTypeListGetIdx(interfaces, j); - if (idx1 == idx2) { - LOGE("Duplicate interface: '%s'\n", - dexStringByTypeIdx(state->pDexFile, idx1)); - return NULL; - } - } - } - } - - if (!verifyClassDataIsForDef(state, item->classDataOff, item->classIdx)) { - LOGE("Invalid class_data_item\n"); - return NULL; - } - - if (!verifyAnnotationsDirectoryIsForDef(state, item->annotationsOff, - item->classIdx)) { - LOGE("Invalid annotations_directory_item\n"); - return NULL; - } - - return (void*) (item + 1); -} - -/* Helper for swapAnnotationsDirectoryItem(), which performs - * byte-swapping and intra-item verification on an - * annotation_directory_item's field elements. */ -static u1* swapFieldAnnotations(const CheckState* state, u4 count, u1* addr) { - DexFieldAnnotationsItem* item = (DexFieldAnnotationsItem*) addr; - bool first = true; - u4 lastIdx = 0; - - CHECK_LIST_SIZE(item, count, sizeof(DexFieldAnnotationsItem)); - - while (count--) { - SWAP_INDEX4(item->fieldIdx, state->pHeader->fieldIdsSize); - SWAP_OFFSET4(item->annotationsOff); - - if (first) { - first = false; - } else if (lastIdx >= item->fieldIdx) { - LOGE("Out-of-order field_idx: 0x%x then 0x%x\n", lastIdx, - item->fieldIdx); - return NULL; - } - - lastIdx = item->fieldIdx; - item++; - } - - return (u1*) item; -} - -/* Helper for swapAnnotationsDirectoryItem(), which performs - * byte-swapping and intra-item verification on an - * annotation_directory_item's method elements. */ -static u1* swapMethodAnnotations(const CheckState* state, u4 count, u1* addr) { - DexMethodAnnotationsItem* item = (DexMethodAnnotationsItem*) addr; - bool first = true; - u4 lastIdx = 0; - - CHECK_LIST_SIZE(item, count, sizeof(DexMethodAnnotationsItem)); - - while (count--) { - SWAP_INDEX4(item->methodIdx, state->pHeader->methodIdsSize); - SWAP_OFFSET4(item->annotationsOff); - - if (first) { - first = false; - } else if (lastIdx >= item->methodIdx) { - LOGE("Out-of-order method_idx: 0x%x then 0x%x\n", lastIdx, - item->methodIdx); - return NULL; - } - - lastIdx = item->methodIdx; - item++; - } - - return (u1*) item; -} - -/* Helper for swapAnnotationsDirectoryItem(), which performs - * byte-swapping and intra-item verification on an - * annotation_directory_item's parameter elements. */ -static u1* swapParameterAnnotations(const CheckState* state, u4 count, - u1* addr) { - DexParameterAnnotationsItem* item = (DexParameterAnnotationsItem*) addr; - bool first = true; - u4 lastIdx = 0; - - CHECK_LIST_SIZE(item, count, sizeof(DexParameterAnnotationsItem)); - - while (count--) { - SWAP_INDEX4(item->methodIdx, state->pHeader->methodIdsSize); - SWAP_OFFSET4(item->annotationsOff); - - if (first) { - first = false; - } else if (lastIdx >= item->methodIdx) { - LOGE("Out-of-order method_idx: 0x%x then 0x%x\n", lastIdx, - item->methodIdx); - return NULL; - } - - lastIdx = item->methodIdx; - item++; - } - - return (u1*) item; -} - -/* Perform byte-swapping and intra-item verification on - * annotations_directory_item. */ -static void* swapAnnotationsDirectoryItem(const CheckState* state, void* ptr) { - DexAnnotationsDirectoryItem* item = ptr; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_OFFSET4(item->classAnnotationsOff); - SWAP_FIELD4(item->fieldsSize); - SWAP_FIELD4(item->methodsSize); - SWAP_FIELD4(item->parametersSize); - - u1* addr = (u1*) (item + 1); - - if (item->fieldsSize != 0) { - addr = swapFieldAnnotations(state, item->fieldsSize, addr); - if (addr == NULL) { - return NULL; - } - } - - if (item->methodsSize != 0) { - addr = swapMethodAnnotations(state, item->methodsSize, addr); - if (addr == NULL) { - return NULL; - } - } - - if (item->parametersSize != 0) { - addr = swapParameterAnnotations(state, item->parametersSize, addr); - if (addr == NULL) { - return NULL; - } - } - - return addr; -} - -/* Helper for crossVerifyAnnotationsDirectoryItem(), which checks the - * field elements. */ -static const u1* crossVerifyFieldAnnotations(const CheckState* state, u4 count, - const u1* addr, u4 definingClass) { - const DexFieldAnnotationsItem* item = (DexFieldAnnotationsItem*) addr; - - while (count--) { - if (!verifyFieldDefiner(state, definingClass, item->fieldIdx)) { - return NULL; - } - if (!dexDataMapVerify(state->pDataMap, item->annotationsOff, - kDexTypeAnnotationSetItem)) { - return NULL; - } - item++; - } - - return (const u1*) item; -} - -/* Helper for crossVerifyAnnotationsDirectoryItem(), which checks the - * method elements. */ -static const u1* crossVerifyMethodAnnotations(const CheckState* state, - u4 count, const u1* addr, u4 definingClass) { - const DexMethodAnnotationsItem* item = (DexMethodAnnotationsItem*) addr; - - while (count--) { - if (!verifyMethodDefiner(state, definingClass, item->methodIdx)) { - return NULL; - } - if (!dexDataMapVerify(state->pDataMap, item->annotationsOff, - kDexTypeAnnotationSetItem)) { - return NULL; - } - item++; - } - - return (const u1*) item; -} - -/* Helper for crossVerifyAnnotationsDirectoryItem(), which checks the - * parameter elements. */ -static const u1* crossVerifyParameterAnnotations(const CheckState* state, - u4 count, const u1* addr, u4 definingClass) { - const DexParameterAnnotationsItem* item = - (DexParameterAnnotationsItem*) addr; - - while (count--) { - if (!verifyMethodDefiner(state, definingClass, item->methodIdx)) { - return NULL; - } - if (!dexDataMapVerify(state->pDataMap, item->annotationsOff, - kDexTypeAnnotationSetRefList)) { - return NULL; - } - item++; - } - - return (const u1*) item; -} - -/* Helper for crossVerifyClassDefItem() and - * crossVerifyAnnotationsDirectoryItem(), which finds the type_idx of - * the definer of the first item in the data. */ -static u4 findFirstAnnotationsDirectoryDefiner(const CheckState* state, - const DexAnnotationsDirectoryItem* dir) { - if (dir->fieldsSize != 0) { - const DexFieldAnnotationsItem* fields = - dexGetFieldAnnotations(state->pDexFile, dir); - const DexFieldId* field = - dexGetFieldId(state->pDexFile, fields[0].fieldIdx); - return field->classIdx; - } - - if (dir->methodsSize != 0) { - const DexMethodAnnotationsItem* methods = - dexGetMethodAnnotations(state->pDexFile, dir); - const DexMethodId* method = - dexGetMethodId(state->pDexFile, methods[0].methodIdx); - return method->classIdx; - } - - if (dir->parametersSize != 0) { - const DexParameterAnnotationsItem* parameters = - dexGetParameterAnnotations(state->pDexFile, dir); - const DexMethodId* method = - dexGetMethodId(state->pDexFile, parameters[0].methodIdx); - return method->classIdx; - } - - return kDexNoIndex; -} - -/* Perform cross-item verification of annotations_directory_item. */ -static void* crossVerifyAnnotationsDirectoryItem(const CheckState* state, - void* ptr) { - const DexAnnotationsDirectoryItem* item = ptr; - u4 definingClass = findFirstAnnotationsDirectoryDefiner(state, item); - - if (!dexDataMapVerify0Ok(state->pDataMap, - item->classAnnotationsOff, kDexTypeAnnotationSetItem)) { - return NULL; - } - - const u1* addr = (const u1*) (item + 1); - - if (item->fieldsSize != 0) { - addr = crossVerifyFieldAnnotations(state, item->fieldsSize, addr, - definingClass); - if (addr == NULL) { - return NULL; - } - } - - if (item->methodsSize != 0) { - addr = crossVerifyMethodAnnotations(state, item->methodsSize, addr, - definingClass); - if (addr == NULL) { - return NULL; - } - } - - if (item->parametersSize != 0) { - addr = crossVerifyParameterAnnotations(state, item->parametersSize, - addr, definingClass); - if (addr == NULL) { - return NULL; - } - } - - return (void*) addr; -} - -/* Perform byte-swapping and intra-item verification on type_list. */ -static void* swapTypeList(const CheckState* state, void* ptr) -{ - DexTypeList* pTypeList = ptr; - DexTypeItem* pType; - u4 count; - - CHECK_PTR_RANGE(pTypeList, pTypeList + 1); - SWAP_FIELD4(pTypeList->size); - count = pTypeList->size; - pType = pTypeList->list; - CHECK_LIST_SIZE(pType, count, sizeof(DexTypeItem)); - - while (count--) { - SWAP_INDEX2(pType->typeIdx, state->pHeader->typeIdsSize); - pType++; - } - - return pType; -} - -/* Perform byte-swapping and intra-item verification on - * annotation_set_ref_list. */ -static void* swapAnnotationSetRefList(const CheckState* state, void* ptr) { - DexAnnotationSetRefList* list = ptr; - DexAnnotationSetRefItem* item; - u4 count; - - CHECK_PTR_RANGE(list, list + 1); - SWAP_FIELD4(list->size); - count = list->size; - item = list->list; - CHECK_LIST_SIZE(item, count, sizeof(DexAnnotationSetRefItem)); - - while (count--) { - SWAP_OFFSET4(item->annotationsOff); - item++; - } - - return item; -} - -/* Perform cross-item verification of annotation_set_ref_list. */ -static void* crossVerifyAnnotationSetRefList(const CheckState* state, - void* ptr) { - const DexAnnotationSetRefList* list = ptr; - const DexAnnotationSetRefItem* item = list->list; - int count = list->size; - - while (count--) { - if (!dexDataMapVerify0Ok(state->pDataMap, - item->annotationsOff, kDexTypeAnnotationSetItem)) { - return NULL; - } - item++; - } - - return (void*) item; -} - -/* Perform byte-swapping and intra-item verification on - * annotation_set_item. */ -static void* swapAnnotationSetItem(const CheckState* state, void* ptr) { - DexAnnotationSetItem* set = ptr; - u4* item; - u4 count; - - CHECK_PTR_RANGE(set, set + 1); - SWAP_FIELD4(set->size); - count = set->size; - item = set->entries; - CHECK_LIST_SIZE(item, count, sizeof(u4)); - - while (count--) { - SWAP_OFFSET4(*item); - item++; - } - - return item; -} - -/* Helper for crossVerifyAnnotationSetItem(), which extracts the type_idx - * out of an annotation_item. */ -static u4 annotationItemTypeIdx(const DexAnnotationItem* item) { - const u1* data = item->annotation; - return readUnsignedLeb128(&data); -} - -/* Perform cross-item verification of annotation_set_item. */ -static void* crossVerifyAnnotationSetItem(const CheckState* state, void* ptr) { - const DexAnnotationSetItem* set = ptr; - int count = set->size; - u4 lastIdx = 0; - bool first = true; - int i; - - for (i = 0; i < count; i++) { - if (!dexDataMapVerify0Ok(state->pDataMap, - dexGetAnnotationOff(set, i), kDexTypeAnnotationItem)) { - return NULL; - } - - const DexAnnotationItem* annotation = - dexGetAnnotationItem(state->pDexFile, set, i); - u4 idx = annotationItemTypeIdx(annotation); - - if (first) { - first = false; - } else if (lastIdx >= idx) { - LOGE("Out-of-order entry types: 0x%x then 0x%x\n", - lastIdx, idx); - return NULL; - } - - lastIdx = idx; - } - - return (void*) (set->entries + count); -} - -/* Helper for verifyClassDataItem(), which checks a list of fields. */ -static bool verifyFields(const CheckState* state, u4 size, - DexField* fields, bool expectStatic) { - u4 i; - - for (i = 0; i < size; i++) { - DexField* field = &fields[i]; - u4 accessFlags = field->accessFlags; - bool isStatic = (accessFlags & ACC_STATIC) != 0; - - CHECK_INDEX(field->fieldIdx, state->pHeader->fieldIdsSize); - - if (isStatic != expectStatic) { - LOGE("Field in wrong list @ %d\n", i); - return false; - } - - if ((accessFlags & ~ACC_FIELD_MASK) != 0) { - LOGE("Bogus field access flags %x @ %d\n", accessFlags, i); - return false; - } - } - - return true; -} - -/* Helper for verifyClassDataItem(), which checks a list of methods. */ -static bool verifyMethods(const CheckState* state, u4 size, - DexMethod* methods, bool expectDirect) { - u4 i; - - for (i = 0; i < size; i++) { - DexMethod* method = &methods[i]; - - CHECK_INDEX(method->methodIdx, state->pHeader->methodIdsSize); - - u4 accessFlags = method->accessFlags; - bool isDirect = - (accessFlags & (ACC_STATIC | ACC_PRIVATE | ACC_CONSTRUCTOR)) != 0; - bool expectCode = (accessFlags & (ACC_NATIVE | ACC_ABSTRACT)) == 0; - bool isSynchronized = (accessFlags & ACC_SYNCHRONIZED) != 0; - bool allowSynchronized = (accessFlags & ACC_NATIVE) != 0; - - if (isDirect != expectDirect) { - LOGE("Method in wrong list @ %d\n", i); - return false; - } - - if (((accessFlags & ~ACC_METHOD_MASK) != 0) - || (isSynchronized && !allowSynchronized)) { - LOGE("Bogus method access flags %x @ %d\n", accessFlags, i); - return false; - } - - if (expectCode) { - if (method->codeOff == 0) { - LOGE("Unexpected zero code_off for access_flags %x\n", - accessFlags); - return false; - } - } else if (method->codeOff != 0) { - LOGE("Unexpected non-zero code_off 0x%x for access_flags %x\n", - method->codeOff, accessFlags); - return false; - } - } - - return true; -} - -/* Helper for verifyClassDataItem(), which does most of the work. */ -static bool verifyClassDataItem0(const CheckState* state, - DexClassData* classData) { - bool okay; - - okay = verifyFields(state, classData->header.staticFieldsSize, - classData->staticFields, true); - - if (!okay) { - LOGE("Trouble with static fields\n"); - return false; - } - - verifyFields(state, classData->header.instanceFieldsSize, - classData->instanceFields, false); - - if (!okay) { - LOGE("Trouble with instance fields\n"); - return false; - } - - okay = verifyMethods(state, classData->header.directMethodsSize, - classData->directMethods, true); - - if (!okay) { - LOGE("Trouble with direct methods\n"); - return false; - } - - okay = verifyMethods(state, classData->header.virtualMethodsSize, - classData->virtualMethods, false); - - if (!okay) { - LOGE("Trouble with virtual methods\n"); - return false; - } - - return true; -} - -/* Perform intra-item verification on class_data_item. */ -static void* intraVerifyClassDataItem(const CheckState* state, void* ptr) { - const u1* data = ptr; - DexClassData* classData = dexReadAndVerifyClassData(&data, state->fileEnd); - - if (classData == NULL) { - LOGE("Unable to parse class_data_item\n"); - return NULL; - } - - bool okay = verifyClassDataItem0(state, classData); - - free(classData); - - if (!okay) { - return NULL; - } - - return (void*) data; -} - -/* Helper for crossVerifyClassDefItem() and - * crossVerifyClassDataItem(), which finds the type_idx of the definer - * of the first item in the data. */ -static u4 findFirstClassDataDefiner(const CheckState* state, - DexClassData* classData) { - if (classData->header.staticFieldsSize != 0) { - u4 fieldIdx = classData->staticFields[0].fieldIdx; - const DexFieldId* field = dexGetFieldId(state->pDexFile, fieldIdx); - return field->classIdx; - } - - if (classData->header.instanceFieldsSize != 0) { - u4 fieldIdx = classData->instanceFields[0].fieldIdx; - const DexFieldId* field = dexGetFieldId(state->pDexFile, fieldIdx); - return field->classIdx; - } - - if (classData->header.directMethodsSize != 0) { - u4 methodIdx = classData->directMethods[0].methodIdx; - const DexMethodId* meth = dexGetMethodId(state->pDexFile, methodIdx); - return meth->classIdx; - } - - if (classData->header.virtualMethodsSize != 0) { - u4 methodIdx = classData->virtualMethods[0].methodIdx; - const DexMethodId* meth = dexGetMethodId(state->pDexFile, methodIdx); - return meth->classIdx; - } - - return kDexNoIndex; -} - -/* Perform cross-item verification of class_data_item. */ -static void* crossVerifyClassDataItem(const CheckState* state, void* ptr) { - const u1* data = ptr; - DexClassData* classData = dexReadAndVerifyClassData(&data, state->fileEnd); - u4 definingClass = findFirstClassDataDefiner(state, classData); - bool okay = true; - u4 i; - - for (i = classData->header.staticFieldsSize; okay && (i > 0); /*i*/) { - i--; - const DexField* field = &classData->staticFields[i]; - okay = verifyFieldDefiner(state, definingClass, field->fieldIdx); - } - - for (i = classData->header.instanceFieldsSize; okay && (i > 0); /*i*/) { - i--; - const DexField* field = &classData->instanceFields[i]; - okay = verifyFieldDefiner(state, definingClass, field->fieldIdx); - } - - for (i = classData->header.directMethodsSize; okay && (i > 0); /*i*/) { - i--; - const DexMethod* meth = &classData->directMethods[i]; - okay = dexDataMapVerify0Ok(state->pDataMap, meth->codeOff, - kDexTypeCodeItem) - && verifyMethodDefiner(state, definingClass, meth->methodIdx); - } - - for (i = classData->header.virtualMethodsSize; okay && (i > 0); /*i*/) { - i--; - const DexMethod* meth = &classData->virtualMethods[i]; - okay = dexDataMapVerify0Ok(state->pDataMap, meth->codeOff, - kDexTypeCodeItem) - && verifyMethodDefiner(state, definingClass, meth->methodIdx); - } - - free(classData); - - if (!okay) { - return NULL; - } - - return (void*) data; -} - -/* Helper for swapCodeItem(), which fills an array with all the valid - * handlerOff values for catch handlers and also verifies the handler - * contents. */ -static u4 setHandlerOffsAndVerify(const CheckState* state, - DexCode* code, u4 firstOffset, u4 handlersSize, u4* handlerOffs) { - const u1* fileEnd = state->fileEnd; - const u1* handlersBase = dexGetCatchHandlerData(code); - u4 offset = firstOffset; - bool okay = true; - u4 i; - - for (i = 0; i < handlersSize; i++) { - const u1* ptr = handlersBase + offset; - int size = readAndVerifySignedLeb128(&ptr, fileEnd, &okay); - bool catchAll; - - if (!okay) { - LOGE("Bogus size\n"); - return 0; - } - - if ((size < -65536) || (size > 65536)) { - LOGE("Invalid size: %d\n", size); - return 0; - } - - if (size <= 0) { - catchAll = true; - size = -size; - } else { - catchAll = false; - } - - handlerOffs[i] = offset; - - while (size-- > 0) { - u4 typeIdx = - readAndVerifyUnsignedLeb128(&ptr, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus type_idx"); - return 0; - } - - CHECK_INDEX(typeIdx, state->pHeader->typeIdsSize); - - u4 addr = readAndVerifyUnsignedLeb128(&ptr, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus addr"); - return 0; - } - - if (addr >= code->insnsSize) { - LOGE("Invalid addr: 0x%x", addr); - return 0; - } - } - - if (catchAll) { - u4 addr = readAndVerifyUnsignedLeb128(&ptr, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus catch_all_addr"); - return 0; - } - - if (addr >= code->insnsSize) { - LOGE("Invalid catch_all_addr: 0x%x", addr); - return 0; - } - } - - offset = ptr - handlersBase; - } - - return offset; -} - -/* Helper for swapCodeItem(), which does all the try-catch related - * swapping and verification. */ -static void* swapTriesAndCatches(const CheckState* state, DexCode* code) { - const u1* encodedHandlers = dexGetCatchHandlerData(code); - const u1* encodedPtr = encodedHandlers; - bool okay = true; - u4 handlersSize = - readAndVerifyUnsignedLeb128(&encodedPtr, state->fileEnd, &okay); - - if (!okay) { - LOGE("Bogus handlers_size\n"); - return NULL; - } - - if ((handlersSize == 0) || (handlersSize >= 65536)) { - LOGE("Invalid handlers_size: %d\n", handlersSize); - return NULL; - } - - u4 handlerOffs[handlersSize]; // list of valid handlerOff values - u4 endOffset = setHandlerOffsAndVerify(state, code, - encodedPtr - encodedHandlers, - handlersSize, handlerOffs); - - if (endOffset == 0) { - return NULL; - } - - DexTry* tries = (DexTry*) dexGetTries(code); - u4 count = code->triesSize; - u4 lastEnd = 0; - - CHECK_LIST_SIZE(tries, count, sizeof(DexTry)); - - while (count--) { - u4 i; - - SWAP_FIELD4(tries->startAddr); - SWAP_FIELD2(tries->insnCount); - SWAP_FIELD2(tries->handlerOff); - - if (tries->startAddr < lastEnd) { - LOGE("Out-of-order try\n"); - return NULL; - } - - if (tries->startAddr >= code->insnsSize) { - LOGE("Invalid start_addr: 0x%x\n", tries->startAddr); - return NULL; - } - - for (i = 0; i < handlersSize; i++) { - if (tries->handlerOff == handlerOffs[i]) { - break; - } - } - - if (i == handlersSize) { - LOGE("Bogus handler offset: 0x%x\n", tries->handlerOff); - return NULL; - } - - lastEnd = tries->startAddr + tries->insnCount; - - if (lastEnd > code->insnsSize) { - LOGE("Invalid insn_count: 0x%x (end addr 0x%x)\n", - tries->insnCount, lastEnd); - return NULL; - } - - tries++; - } - - return (u1*) encodedHandlers + endOffset; -} - -/* Perform byte-swapping and intra-item verification on code_item. */ -static void* swapCodeItem(const CheckState* state, void* ptr) { - DexCode* item = ptr; - u2* insns; - u4 count; - - CHECK_PTR_RANGE(item, item + 1); - SWAP_FIELD2(item->registersSize); - SWAP_FIELD2(item->insSize); - SWAP_FIELD2(item->outsSize); - SWAP_FIELD2(item->triesSize); - SWAP_OFFSET4(item->debugInfoOff); - SWAP_FIELD4(item->insnsSize); - - count = item->insnsSize; - insns = item->insns; - CHECK_LIST_SIZE(insns, count, sizeof(u2)); - - while (count--) { - *insns = SWAP2(*insns); - insns++; - } - - if (item->triesSize == 0) { - ptr = insns; - } else { - if ((((u4) insns) & 3) != 0) { - // Four-byte alignment for the tries. Verify the spacer is a 0. - if (*insns != 0) { - LOGE("Non-zero padding: 0x%x\n", (u4) *insns); - return NULL; - } - } - - ptr = swapTriesAndCatches(state, item); - } - - return ptr; -} - -/* Perform intra-item verification on string_data_item. */ -static void* intraVerifyStringDataItem(const CheckState* state, void* ptr) { - const u1* fileEnd = state->fileEnd; - const u1* data = ptr; - bool okay = true; - u4 utf16Size = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - u4 i; - - if (!okay) { - LOGE("Bogus utf16_size\n"); - return NULL; - } - - for (i = 0; i < utf16Size; i++) { - if (data >= fileEnd) { - LOGE("String data would go beyond end-of-file\n"); - return NULL; - } - - u1 byte1 = *(data++); - - // Switch on the high four bits. - switch (byte1 >> 4) { - case 0x00: { - // Special case of bit pattern 0xxx. - if (byte1 == 0) { - LOGE("String shorter than indicated utf16_size 0x%x\n", - utf16Size); - return NULL; - } - break; - } - case 0x01: - case 0x02: - case 0x03: - case 0x04: - case 0x05: - case 0x06: - case 0x07: { - // Bit pattern 0xxx. No need for any extra bytes or checks. - break; - } - case 0x08: - case 0x09: - case 0x0a: - case 0x0b: - case 0x0f: { - /* - * Bit pattern 10xx or 1111, which are illegal start bytes. - * Note: 1111 is valid for normal UTF-8, but not the - * modified UTF-8 used here. - */ - LOGE("Illegal start byte 0x%x\n", byte1); - return NULL; - } - case 0x0e: { - // Bit pattern 1110, so there are two additional bytes. - u1 byte2 = *(data++); - if ((byte2 & 0xc0) != 0x80) { - LOGE("Illegal continuation byte 0x%x\n", byte2); - return NULL; - } - u1 byte3 = *(data++); - if ((byte3 & 0xc0) != 0x80) { - LOGE("Illegal continuation byte 0x%x\n", byte3); - return NULL; - } - u2 value = ((byte1 & 0x0f) << 12) | ((byte2 & 0x3f) << 6) - | (byte3 & 0x3f); - if (value < 0x800) { - LOGE("Illegal representation for value %x\n", value); - return NULL; - } - break; - } - case 0x0c: - case 0x0d: { - // Bit pattern 110x, so there is one additional byte. - u1 byte2 = *(data++); - if ((byte2 & 0xc0) != 0x80) { - LOGE("Illegal continuation byte 0x%x\n", byte2); - return NULL; - } - u2 value = ((byte1 & 0x1f) << 6) | (byte2 & 0x3f); - if ((value != 0) && (value < 0x80)) { - LOGE("Illegal representation for value %x\n", value); - return NULL; - } - break; - } - } - } - - if (*(data++) != '\0') { - LOGE("String longer than indicated utf16_size 0x%x\n", utf16Size); - return NULL; - } - - return (void*) data; -} - -/* Perform intra-item verification on debug_info_item. */ -static void* intraVerifyDebugInfoItem(const CheckState* state, void* ptr) { - const u1* fileEnd = state->fileEnd; - const u1* data = ptr; - bool okay = true; - u4 i; - - readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus line_start\n"); - return NULL; - } - - u4 parametersSize = - readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus parameters_size\n"); - return NULL; - } - - if (parametersSize > 65536) { - LOGE("Invalid parameters_size: 0x%x\n", parametersSize); - return NULL; - } - - for (i = 0; i < parametersSize; i++) { - u4 parameterName = - readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus parameter_name\n"); - return NULL; - } - - if (parameterName != 0) { - parameterName--; - CHECK_INDEX(parameterName, state->pHeader->stringIdsSize); - } - } - - bool done = false; - while (!done) { - u1 opcode = *(data++); - - switch (opcode) { - case DBG_END_SEQUENCE: { - done = true; - break; - } - case DBG_ADVANCE_PC: { - readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - break; - } - case DBG_ADVANCE_LINE: { - readAndVerifySignedLeb128(&data, fileEnd, &okay); - break; - } - case DBG_START_LOCAL: { - u4 idx; - u4 regNum = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (regNum >= 65536) { - okay = false; - break; - } - idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (idx != 0) { - idx--; - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - } - idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (idx != 0) { - idx--; - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - } - break; - } - case DBG_END_LOCAL: - case DBG_RESTART_LOCAL: { - u4 regNum = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (regNum >= 65536) { - okay = false; - break; - } - break; - } - case DBG_START_LOCAL_EXTENDED: { - u4 idx; - u4 regNum = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (regNum >= 65536) { - okay = false; - break; - } - idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (idx != 0) { - idx--; - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - } - idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (idx != 0) { - idx--; - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - } - idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (idx != 0) { - idx--; - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - } - break; - } - case DBG_SET_FILE: { - u4 idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - if (!okay) break; - if (idx != 0) { - idx--; - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - } - break; - } - default: { - // No arguments to parse for anything else. - } - } - - if (!okay) { - LOGE("Bogus syntax for opcode %02x\n", opcode); - return NULL; - } - } - - return (void*) data; -} - -/* defined below */ -static const u1* verifyEncodedValue(const CheckState* state, const u1* data, - bool crossVerify); -static const u1* verifyEncodedAnnotation(const CheckState* state, - const u1* data, bool crossVerify); - -/* Helper for verifyEncodedValue(), which reads a 1- to 4- byte unsigned - * little endian value. */ -static u4 readUnsignedLittleEndian(const CheckState* state, const u1** pData, - u4 size) { - const u1* data = *pData; - u4 result = 0; - u4 i; - - CHECK_PTR_RANGE(data, data + size); - - for (i = 0; i < size; i++) { - result |= ((u4) *(data++)) << (i * 8); - } - - *pData = data; - return result; -} - -/* Helper for *VerifyAnnotationItem() and *VerifyEncodedArrayItem(), which - * verifies an encoded_array. */ -static const u1* verifyEncodedArray(const CheckState* state, - const u1* data, bool crossVerify) { - bool okay = true; - u4 size = readAndVerifyUnsignedLeb128(&data, state->fileEnd, &okay); - - if (!okay) { - LOGE("Bogus encoded_array size\n"); - return NULL; - } - - while (size--) { - data = verifyEncodedValue(state, data, crossVerify); - if (data == NULL) { - return NULL; - } - } - - return data; -} - -/* Helper for *VerifyAnnotationItem() and *VerifyEncodedArrayItem(), which - * verifies an encoded_value. */ -static const u1* verifyEncodedValue(const CheckState* state, - const u1* data, bool crossVerify) { - CHECK_PTR_RANGE(data, data + 1); - - u1 headerByte = *(data++); - u4 valueType = headerByte & kDexAnnotationValueTypeMask; - u4 valueArg = headerByte >> kDexAnnotationValueArgShift; - - switch (valueType) { - case kDexAnnotationByte: { - if (valueArg != 0) { - LOGE("Bogus byte size 0x%x\n", valueArg); - return NULL; - } - data++; - break; - } - case kDexAnnotationShort: - case kDexAnnotationChar: { - if (valueArg > 1) { - LOGE("Bogus char/short size 0x%x\n", valueArg); - return NULL; - } - data += valueArg + 1; - break; - } - case kDexAnnotationInt: - case kDexAnnotationFloat: { - if (valueArg > 3) { - LOGE("Bogus int/float size 0x%x\n", valueArg); - return NULL; - } - data += valueArg + 1; - break; - } - case kDexAnnotationLong: - case kDexAnnotationDouble: { - data += valueArg + 1; - break; - } - case kDexAnnotationString: { - if (valueArg > 3) { - LOGE("Bogus string size 0x%x\n", valueArg); - return NULL; - } - u4 idx = readUnsignedLittleEndian(state, &data, valueArg + 1); - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - break; - } - case kDexAnnotationType: { - if (valueArg > 3) { - LOGE("Bogus type size 0x%x\n", valueArg); - return NULL; - } - u4 idx = readUnsignedLittleEndian(state, &data, valueArg + 1); - CHECK_INDEX(idx, state->pHeader->typeIdsSize); - break; - } - case kDexAnnotationField: - case kDexAnnotationEnum: { - if (valueArg > 3) { - LOGE("Bogus field/enum size 0x%x\n", valueArg); - return NULL; - } - u4 idx = readUnsignedLittleEndian(state, &data, valueArg + 1); - CHECK_INDEX(idx, state->pHeader->fieldIdsSize); - break; - } - case kDexAnnotationMethod: { - if (valueArg > 3) { - LOGE("Bogus method size 0x%x\n", valueArg); - return NULL; - } - u4 idx = readUnsignedLittleEndian(state, &data, valueArg + 1); - CHECK_INDEX(idx, state->pHeader->methodIdsSize); - break; - } - case kDexAnnotationArray: { - if (valueArg != 0) { - LOGE("Bogus array value_arg 0x%x\n", valueArg); - return NULL; - } - data = verifyEncodedArray(state, data, crossVerify); - break; - } - case kDexAnnotationAnnotation: { - if (valueArg != 0) { - LOGE("Bogus annotation value_arg 0x%x\n", valueArg); - return NULL; - } - data = verifyEncodedAnnotation(state, data, crossVerify); - break; - } - case kDexAnnotationNull: { - if (valueArg != 0) { - LOGE("Bogus null value_arg 0x%x\n", valueArg); - return NULL; - } - // Nothing else to do for this type. - break; - } - case kDexAnnotationBoolean: { - if (valueArg > 1) { - LOGE("Bogus boolean value_arg 0x%x\n", valueArg); - return NULL; - } - // Nothing else to do for this type. - break; - } - default: { - LOGE("Bogus value_type 0x%x\n", valueType); - return NULL; - } - } - - return data; -} - -/* Helper for *VerifyAnnotationItem() and *VerifyEncodedArrayItem(), which - * verifies an encoded_annotation. */ -static const u1* verifyEncodedAnnotation(const CheckState* state, - const u1* data, bool crossVerify) { - const u1* fileEnd = state->fileEnd; - bool okay = true; - u4 idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus encoded_annotation type_idx\n"); - return NULL; - } - - CHECK_INDEX(idx, state->pHeader->typeIdsSize); - - if (crossVerify) { - const char* descriptor = dexStringByTypeIdx(state->pDexFile, idx); - if (!dexIsClassDescriptor(descriptor)) { - LOGE("Bogus annotation type: '%s'\n", descriptor); - return NULL; - } - } - - u4 size = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - u4 lastIdx = 0; - bool first = true; - - if (!okay) { - LOGE("Bogus encoded_annotation size\n"); - return NULL; - } - - while (size--) { - idx = readAndVerifyUnsignedLeb128(&data, fileEnd, &okay); - - if (!okay) { - LOGE("Bogus encoded_annotation name_idx\n"); - return NULL; - } - - CHECK_INDEX(idx, state->pHeader->stringIdsSize); - - if (crossVerify) { - const char* name = dexStringById(state->pDexFile, idx); - if (!dexIsValidMemberName(name)) { - LOGE("Bogus annotation member name: '%s'\n", name); - return NULL; - } - } - - if (first) { - first = false; - } else if (lastIdx >= idx) { - LOGE("Out-of-order encoded_annotation name_idx: 0x%x then 0x%x\n", - lastIdx, idx); - return NULL; - } - - data = verifyEncodedValue(state, data, crossVerify); - lastIdx = idx; - - if (data == NULL) { - return NULL; - } - } - - return data; -} - -/* Perform intra-item verification on encoded_array_item. */ -static void* intraVerifyEncodedArrayItem(const CheckState* state, void* ptr) { - return (void*) verifyEncodedArray(state, (const u1*) ptr, false); -} - -/* Perform intra-item verification on annotation_item. */ -static void* intraVerifyAnnotationItem(const CheckState* state, void* ptr) { - const u1* data = ptr; - - CHECK_PTR_RANGE(data, data + 1); - - switch (*(data++)) { - case kDexVisibilityBuild: - case kDexVisibilityRuntime: - case kDexVisibilitySystem: { - break; - } - default: { - LOGE("Bogus annotation visibility: 0x%x\n", *data); - return NULL; - } - } - - return (void*) verifyEncodedAnnotation(state, data, false); -} - -/* Perform cross-item verification on annotation_item. */ -static void* crossVerifyAnnotationItem(const CheckState* state, void* ptr) { - const u1* data = ptr; - - // Skip the visibility byte. - data++; - - return (void*) verifyEncodedAnnotation(state, data, true); -} - - - - -/* - * Function to visit an individual top-level item type. - */ -typedef void* ItemVisitorFunction(const CheckState* state, void* ptr); - -/* - * Iterate over all the items in a section, optionally updating the - * data map (done if mapType is passed as non-negative). The section - * must consist of concatenated items of the same type. - */ -static bool iterateSectionWithOptionalUpdate(CheckState* state, - u4 offset, u4 count, ItemVisitorFunction* func, u4 alignment, - u4* nextOffset, int mapType) { - u4 alignmentMask = alignment - 1; - u4 i; - - state->previousItem = NULL; - - for (i = 0; i < count; i++) { - u4 newOffset = (offset + alignmentMask) & ~alignmentMask; - u1* ptr = filePointer(state, newOffset); - - if (offset < newOffset) { - ptr = filePointer(state, offset); - if (offset < newOffset) { - CHECK_OFFSET_RANGE(offset, newOffset); - while (offset < newOffset) { - if (*ptr != '\0') { - LOGE("Non-zero padding 0x%02x @ %x\n", *ptr, offset); - return false; - } - ptr++; - offset++; - } - } - } - - u1* newPtr = (u1*) func(state, ptr); - newOffset = fileOffset(state, newPtr); - - if (newPtr == NULL) { - LOGE("Trouble with item %d @ offset 0x%x\n", i, offset); - return false; - } - - if (newOffset > state->fileLen) { - LOGE("Item %d @ offset 0x%x ends out of bounds\n", i, offset); - return false; - } - - if (mapType >= 0) { - dexDataMapAdd(state->pDataMap, offset, mapType); - } - - state->previousItem = ptr; - offset = newOffset; - } - - if (nextOffset != NULL) { - *nextOffset = offset; - } - - return true; -} - -/* - * Iterate over all the items in a section. The section must consist of - * concatenated items of the same type. This variant will not update the data - * map. - */ -static bool iterateSection(CheckState* state, u4 offset, u4 count, - ItemVisitorFunction* func, u4 alignment, u4* nextOffset) { - return iterateSectionWithOptionalUpdate(state, offset, count, func, - alignment, nextOffset, -1); -} - -/* - * Like iterateSection(), but also check that the offset and count match - * a given pair of expected values. - */ -static bool checkBoundsAndIterateSection(CheckState* state, - u4 offset, u4 count, u4 expectedOffset, u4 expectedCount, - ItemVisitorFunction* func, u4 alignment, u4* nextOffset) { - if (offset != expectedOffset) { - LOGE("Bogus offset for section: got 0x%x; expected 0x%x\n", - offset, expectedOffset); - return false; - } - - if (count != expectedCount) { - LOGE("Bogus size for section: got 0x%x; expected 0x%x\n", - count, expectedCount); - return false; - } - - return iterateSection(state, offset, count, func, alignment, nextOffset); -} - -/* - * Like iterateSection(), but also update the data section map and - * check that all the items fall within the data section. - */ -static bool iterateDataSection(CheckState* state, u4 offset, u4 count, - ItemVisitorFunction* func, u4 alignment, u4* nextOffset, int mapType) { - u4 dataStart = state->pHeader->dataOff; - u4 dataEnd = dataStart + state->pHeader->dataSize; - - assert(nextOffset != NULL); - - if ((offset < dataStart) || (offset >= dataEnd)) { - LOGE("Bogus offset for data subsection: 0x%x\n", offset); - return false; - } - - if (!iterateSectionWithOptionalUpdate(state, offset, count, func, - alignment, nextOffset, mapType)) { - return false; - } - - if (*nextOffset > dataEnd) { - LOGE("Out-of-bounds end of data subsection: 0x%x\n", *nextOffset); - return false; - } - - return true; -} - -/* - * Byte-swap all items in the given map except the header and the map - * itself, both of which should have already gotten swapped. This also - * does all possible intra-item verification, that is, verification - * that doesn't need to assume the sanctity of the contents of *other* - * items. The intra-item limitation is because at the time an item is - * asked to verify itself, it can't assume that the items it refers to - * have been byte-swapped and verified. - */ -static bool swapEverythingButHeaderAndMap(CheckState* state, - DexMapList* pMap) { - const DexMapItem* item = pMap->list; - u4 lastOffset = 0; - u4 count = pMap->size; - bool okay = true; - - while (okay && count--) { - u4 sectionOffset = item->offset; - u4 sectionCount = item->size; - u2 type = item->type; - - if (lastOffset < sectionOffset) { - CHECK_OFFSET_RANGE(lastOffset, sectionOffset); - const u1* ptr = filePointer(state, lastOffset); - while (lastOffset < sectionOffset) { - if (*ptr != '\0') { - LOGE("Non-zero padding 0x%02x before section start @ %x\n", - *ptr, lastOffset); - okay = false; - break; - } - ptr++; - lastOffset++; - } - } else if (lastOffset > sectionOffset) { - LOGE("Section overlap or out-of-order map: %x, %x\n", - lastOffset, sectionOffset); - okay = false; - } - - if (!okay) { - break; - } - - switch (type) { - case kDexTypeHeaderItem: { - /* - * The header got swapped very early on, but do some - * additional sanity checking here. - */ - okay = checkHeaderSection(state, sectionOffset, sectionCount, - &lastOffset); - break; - } - case kDexTypeStringIdItem: { - okay = checkBoundsAndIterateSection(state, sectionOffset, - sectionCount, state->pHeader->stringIdsOff, - state->pHeader->stringIdsSize, swapStringIdItem, - sizeof(u4), &lastOffset); - break; - } - case kDexTypeTypeIdItem: { - okay = checkBoundsAndIterateSection(state, sectionOffset, - sectionCount, state->pHeader->typeIdsOff, - state->pHeader->typeIdsSize, swapTypeIdItem, - sizeof(u4), &lastOffset); - break; - } - case kDexTypeProtoIdItem: { - okay = checkBoundsAndIterateSection(state, sectionOffset, - sectionCount, state->pHeader->protoIdsOff, - state->pHeader->protoIdsSize, swapProtoIdItem, - sizeof(u4), &lastOffset); - break; - } - case kDexTypeFieldIdItem: { - okay = checkBoundsAndIterateSection(state, sectionOffset, - sectionCount, state->pHeader->fieldIdsOff, - state->pHeader->fieldIdsSize, swapFieldIdItem, - sizeof(u4), &lastOffset); - break; - } - case kDexTypeMethodIdItem: { - okay = checkBoundsAndIterateSection(state, sectionOffset, - sectionCount, state->pHeader->methodIdsOff, - state->pHeader->methodIdsSize, swapMethodIdItem, - sizeof(u4), &lastOffset); - break; - } - case kDexTypeClassDefItem: { - okay = checkBoundsAndIterateSection(state, sectionOffset, - sectionCount, state->pHeader->classDefsOff, - state->pHeader->classDefsSize, swapClassDefItem, - sizeof(u4), &lastOffset); - break; - } - case kDexTypeMapList: { - /* - * The map section was swapped early on, but do some - * additional sanity checking here. - */ - okay = checkMapSection(state, sectionOffset, sectionCount, - &lastOffset); - break; - } - case kDexTypeTypeList: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - swapTypeList, sizeof(u4), &lastOffset, type); - break; - } - case kDexTypeAnnotationSetRefList: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - swapAnnotationSetRefList, sizeof(u4), &lastOffset, - type); - break; - } - case kDexTypeAnnotationSetItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - swapAnnotationSetItem, sizeof(u4), &lastOffset, type); - break; - } - case kDexTypeClassDataItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - intraVerifyClassDataItem, sizeof(u1), &lastOffset, - type); - break; - } - case kDexTypeCodeItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - swapCodeItem, sizeof(u4), &lastOffset, type); - break; - } - case kDexTypeStringDataItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - intraVerifyStringDataItem, sizeof(u1), &lastOffset, - type); - break; - } - case kDexTypeDebugInfoItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - intraVerifyDebugInfoItem, sizeof(u1), &lastOffset, - type); - break; - } - case kDexTypeAnnotationItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - intraVerifyAnnotationItem, sizeof(u1), &lastOffset, - type); - break; - } - case kDexTypeEncodedArrayItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - intraVerifyEncodedArrayItem, sizeof(u1), &lastOffset, - type); - break; - } - case kDexTypeAnnotationsDirectoryItem: { - okay = iterateDataSection(state, sectionOffset, sectionCount, - swapAnnotationsDirectoryItem, sizeof(u4), &lastOffset, - type); - break; - } - default: { - LOGE("Unknown map item type %04x\n", type); - return false; - } - } - - if (!okay) { - LOGE("Swap of section type %04x failed\n", type); - } - - item++; - } - - return okay; -} - -/* - * Perform cross-item verification on everything that needs it. This - * pass is only called after all items are byte-swapped and - * intra-verified (checked for internal consistency). - */ -static bool crossVerifyEverything(CheckState* state, DexMapList* pMap) -{ - const DexMapItem* item = pMap->list; - u4 count = pMap->size; - bool okay = true; - - while (okay && count--) { - u4 sectionOffset = item->offset; - u4 sectionCount = item->size; - - switch (item->type) { - case kDexTypeHeaderItem: - case kDexTypeMapList: - case kDexTypeTypeList: - case kDexTypeCodeItem: - case kDexTypeStringDataItem: - case kDexTypeDebugInfoItem: - case kDexTypeAnnotationItem: - case kDexTypeEncodedArrayItem: { - // There is no need for cross-item verification for these. - break; - } - case kDexTypeStringIdItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyStringIdItem, sizeof(u4), NULL); - break; - } - case kDexTypeTypeIdItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyTypeIdItem, sizeof(u4), NULL); - break; - } - case kDexTypeProtoIdItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyProtoIdItem, sizeof(u4), NULL); - break; - } - case kDexTypeFieldIdItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyFieldIdItem, sizeof(u4), NULL); - break; - } - case kDexTypeMethodIdItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyMethodIdItem, sizeof(u4), NULL); - break; - } - case kDexTypeClassDefItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyClassDefItem, sizeof(u4), NULL); - break; - } - case kDexTypeAnnotationSetRefList: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyAnnotationSetRefList, sizeof(u4), NULL); - break; - } - case kDexTypeAnnotationSetItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyAnnotationSetItem, sizeof(u4), NULL); - break; - } - case kDexTypeClassDataItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyClassDataItem, sizeof(u1), NULL); - break; - } - case kDexTypeAnnotationsDirectoryItem: { - okay = iterateSection(state, sectionOffset, sectionCount, - crossVerifyAnnotationsDirectoryItem, sizeof(u4), NULL); - break; - } - default: { - LOGE("Unknown map item type %04x\n", item->type); - return false; - } - } - - if (!okay) { - LOGE("Cross-item verify of section type %04x failed\n", - item->type); - } - - item++; - } - - return okay; -} - -/* - * Fix the byte ordering of all fields in the DEX file, and do structural - * verification. - * - * While we're at it, make sure that the file offsets all refer to locations - * within the file. - * - * Returns 0 on success, nonzero on failure. - */ -int dexFixByteOrdering(u1* addr, int len) -{ - DexHeader* pHeader; - CheckState state; - bool okay = true; - - memset(&state, 0, sizeof(state)); - LOGV("+++ swapping and verifying\n"); - - /* - * Start by verifying the magic number. The caller verified that "len" - * says we have at least a header's worth of data. - */ - pHeader = (DexHeader*) addr; - if (memcmp(pHeader->magic, DEX_MAGIC, 4) != 0) { - /* really shouldn't be here -- this is weird */ - LOGE("ERROR: Can't byte swap: bad magic number " - "(0x%02x %02x %02x %02x)\n", - pHeader->magic[0], pHeader->magic[1], - pHeader->magic[2], pHeader->magic[3]); - okay = false; - } - - if (okay && memcmp(pHeader->magic+4, DEX_MAGIC_VERS, 4) != 0) { - /* older or newer version we don't know how to read */ - LOGE("ERROR: Can't byte swap: bad dex version " - "(0x%02x %02x %02x %02x)\n", - pHeader->magic[4], pHeader->magic[5], - pHeader->magic[6], pHeader->magic[7]); - okay = false; - } - - if (okay) { - int expectedLen = (int) SWAP4(pHeader->fileSize); - if (len < expectedLen) { - LOGE("ERROR: Bad length: expected %d, got %d\n", expectedLen, len); - okay = false; - } else if (len != expectedLen) { - LOGW("WARNING: Odd length: expected %d, got %d\n", expectedLen, - len); - // keep going - } - } - - if (okay) { - /* - * Compute the adler32 checksum and compare it to what's stored in - * the file. This isn't free, but chances are good that we just - * unpacked this from a jar file and have all of the pages sitting - * in memory, so it's pretty quick. - * - * This might be a big-endian system, so we need to do this before - * we byte-swap the header. - */ - uLong adler = adler32(0L, Z_NULL, 0); - const int nonSum = sizeof(pHeader->magic) + sizeof(pHeader->checksum); - u4 storedFileSize = SWAP4(pHeader->fileSize); - u4 expectedChecksum = SWAP4(pHeader->checksum); - - adler = adler32(adler, ((const u1*) pHeader) + nonSum, - storedFileSize - nonSum); - - if (adler != expectedChecksum) { - LOGE("ERROR: bad checksum (%08lx, expected %08x)\n", - adler, expectedChecksum); - okay = false; - } - } - - if (okay) { - state.fileStart = addr; - state.fileEnd = addr + len; - state.fileLen = len; - state.pDexFile = NULL; - state.pDataMap = NULL; - state.previousItem = NULL; - - /* - * Swap the header and check the contents. - */ - okay = swapDexHeader(&state, pHeader); - } - - if (okay) { - state.pHeader = pHeader; - - if (pHeader->headerSize < sizeof(DexHeader)) { - LOGE("ERROR: Small header size %d, struct %d\n", - pHeader->headerSize, (int) sizeof(DexHeader)); - okay = false; - } else if (pHeader->headerSize > sizeof(DexHeader)) { - LOGW("WARNING: Large header size %d, struct %d\n", - pHeader->headerSize, (int) sizeof(DexHeader)); - // keep going? - } - } - - if (okay) { - /* - * Look for the map. Swap it and then use it to find and swap - * everything else. - */ - if (pHeader->mapOff != 0) { - DexFile dexFile; - DexMapList* pDexMap = (DexMapList*) (addr + pHeader->mapOff); - - okay = okay && swapMap(&state, pDexMap); - okay = okay && swapEverythingButHeaderAndMap(&state, pDexMap); - - dexFileSetupBasicPointers(&dexFile, addr); - state.pDexFile = &dexFile; - - okay = okay && crossVerifyEverything(&state, pDexMap); - } else { - LOGE("ERROR: No map found; impossible to byte-swap and verify"); - okay = false; - } - } - - if (!okay) { - LOGE("ERROR: Byte swap + verify failed\n"); - } - - if (state.pDataMap != NULL) { - dexDataMapFree(state.pDataMap); - } - - return !okay; // 0 == success -} diff --git a/libdex/InstrUtils.c b/libdex/InstrUtils.c deleted file mode 100644 index b0718f386..000000000 --- a/libdex/InstrUtils.c +++ /dev/null @@ -1,1234 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Dalvik instruction utility functions. - */ -#include "InstrUtils.h" - -#include <stdlib.h> - - -/* - * Generate a table that holds the width of all instructions. - * - * Standard instructions have positive values, optimizer instructions - * have negative values, unimplemented instructions have a width of zero. - * - * I'm doing it with a giant switch statement because it's easier to - * maintain and update than a static table with 256 unadorned integers, - * and if we're missing a case gcc emits a "warning: enumeration value not - * handled" message. - * - * (To save space in the binary we could generate a static table with a - * command-line utility.) - */ -InstructionWidth* dexCreateInstrWidthTable(void) -{ - InstructionWidth* instrWidth; - int i; - - instrWidth = malloc(sizeof(InstructionWidth) * kNumDalvikInstructions); - if (instrWidth == NULL) - return NULL; - - for (i = 0; i < kNumDalvikInstructions; i++) { - OpCode opc = (OpCode) i; - int width = 0; - - switch (opc) { - case OP_NOP: /* switch-statement data is a special case of NOP */ - case OP_MOVE: - case OP_MOVE_WIDE: - case OP_MOVE_OBJECT: - case OP_MOVE_RESULT: - case OP_MOVE_RESULT_WIDE: - case OP_MOVE_RESULT_OBJECT: - case OP_MOVE_EXCEPTION: - case OP_RETURN_VOID: - case OP_RETURN: - case OP_RETURN_WIDE: - case OP_RETURN_OBJECT: - case OP_CONST_4: - case OP_MONITOR_ENTER: - case OP_MONITOR_EXIT: - case OP_ARRAY_LENGTH: - case OP_THROW: - case OP_GOTO: - case OP_NEG_INT: - case OP_NOT_INT: - case OP_NEG_LONG: - case OP_NOT_LONG: - case OP_NEG_FLOAT: - case OP_NEG_DOUBLE: - case OP_INT_TO_LONG: - case OP_INT_TO_FLOAT: - case OP_INT_TO_DOUBLE: - case OP_LONG_TO_INT: - case OP_LONG_TO_FLOAT: - case OP_LONG_TO_DOUBLE: - case OP_FLOAT_TO_INT: - case OP_FLOAT_TO_LONG: - case OP_FLOAT_TO_DOUBLE: - case OP_DOUBLE_TO_INT: - case OP_DOUBLE_TO_LONG: - case OP_DOUBLE_TO_FLOAT: - case OP_INT_TO_BYTE: - case OP_INT_TO_CHAR: - case OP_INT_TO_SHORT: - case OP_ADD_INT_2ADDR: - case OP_SUB_INT_2ADDR: - case OP_MUL_INT_2ADDR: - case OP_DIV_INT_2ADDR: - case OP_REM_INT_2ADDR: - case OP_AND_INT_2ADDR: - case OP_OR_INT_2ADDR: - case OP_XOR_INT_2ADDR: - case OP_SHL_INT_2ADDR: - case OP_SHR_INT_2ADDR: - case OP_USHR_INT_2ADDR: - case OP_ADD_LONG_2ADDR: - case OP_SUB_LONG_2ADDR: - case OP_MUL_LONG_2ADDR: - case OP_DIV_LONG_2ADDR: - case OP_REM_LONG_2ADDR: - case OP_AND_LONG_2ADDR: - case OP_OR_LONG_2ADDR: - case OP_XOR_LONG_2ADDR: - case OP_SHL_LONG_2ADDR: - case OP_SHR_LONG_2ADDR: - case OP_USHR_LONG_2ADDR: - case OP_ADD_FLOAT_2ADDR: - case OP_SUB_FLOAT_2ADDR: - case OP_MUL_FLOAT_2ADDR: - case OP_DIV_FLOAT_2ADDR: - case OP_REM_FLOAT_2ADDR: - case OP_ADD_DOUBLE_2ADDR: - case OP_SUB_DOUBLE_2ADDR: - case OP_MUL_DOUBLE_2ADDR: - case OP_DIV_DOUBLE_2ADDR: - case OP_REM_DOUBLE_2ADDR: - width = 1; - break; - - case OP_MOVE_FROM16: - case OP_MOVE_WIDE_FROM16: - case OP_MOVE_OBJECT_FROM16: - case OP_CONST_16: - case OP_CONST_HIGH16: - case OP_CONST_WIDE_16: - case OP_CONST_WIDE_HIGH16: - case OP_CONST_STRING: - case OP_CONST_CLASS: - case OP_CHECK_CAST: - case OP_INSTANCE_OF: - case OP_NEW_INSTANCE: - case OP_NEW_ARRAY: - case OP_CMPL_FLOAT: - case OP_CMPG_FLOAT: - case OP_CMPL_DOUBLE: - case OP_CMPG_DOUBLE: - case OP_CMP_LONG: - case OP_GOTO_16: - case OP_IF_EQ: - case OP_IF_NE: - case OP_IF_LT: - case OP_IF_GE: - case OP_IF_GT: - case OP_IF_LE: - case OP_IF_EQZ: - case OP_IF_NEZ: - case OP_IF_LTZ: - case OP_IF_GEZ: - case OP_IF_GTZ: - case OP_IF_LEZ: - case OP_AGET: - case OP_AGET_WIDE: - case OP_AGET_OBJECT: - case OP_AGET_BOOLEAN: - case OP_AGET_BYTE: - case OP_AGET_CHAR: - case OP_AGET_SHORT: - case OP_APUT: - case OP_APUT_WIDE: - case OP_APUT_OBJECT: - case OP_APUT_BOOLEAN: - case OP_APUT_BYTE: - case OP_APUT_CHAR: - case OP_APUT_SHORT: - case OP_IGET: - case OP_IGET_WIDE: - case OP_IGET_OBJECT: - case OP_IGET_BOOLEAN: - case OP_IGET_BYTE: - case OP_IGET_CHAR: - case OP_IGET_SHORT: - case OP_IPUT: - case OP_IPUT_WIDE: - case OP_IPUT_OBJECT: - case OP_IPUT_BOOLEAN: - case OP_IPUT_BYTE: - case OP_IPUT_CHAR: - case OP_IPUT_SHORT: - case OP_SGET: - case OP_SGET_WIDE: - case OP_SGET_OBJECT: - case OP_SGET_BOOLEAN: - case OP_SGET_BYTE: - case OP_SGET_CHAR: - case OP_SGET_SHORT: - case OP_SPUT: - case OP_SPUT_WIDE: - case OP_SPUT_OBJECT: - case OP_SPUT_BOOLEAN: - case OP_SPUT_BYTE: - case OP_SPUT_CHAR: - case OP_SPUT_SHORT: - case OP_ADD_INT: - case OP_SUB_INT: - case OP_MUL_INT: - case OP_DIV_INT: - case OP_REM_INT: - case OP_AND_INT: - case OP_OR_INT: - case OP_XOR_INT: - case OP_SHL_INT: - case OP_SHR_INT: - case OP_USHR_INT: - case OP_ADD_LONG: - case OP_SUB_LONG: - case OP_MUL_LONG: - case OP_DIV_LONG: - case OP_REM_LONG: - case OP_AND_LONG: - case OP_OR_LONG: - case OP_XOR_LONG: - case OP_SHL_LONG: - case OP_SHR_LONG: - case OP_USHR_LONG: - case OP_ADD_FLOAT: - case OP_SUB_FLOAT: - case OP_MUL_FLOAT: - case OP_DIV_FLOAT: - case OP_REM_FLOAT: - case OP_ADD_DOUBLE: - case OP_SUB_DOUBLE: - case OP_MUL_DOUBLE: - case OP_DIV_DOUBLE: - case OP_REM_DOUBLE: - case OP_ADD_INT_LIT16: - case OP_RSUB_INT: - case OP_MUL_INT_LIT16: - case OP_DIV_INT_LIT16: - case OP_REM_INT_LIT16: - case OP_AND_INT_LIT16: - case OP_OR_INT_LIT16: - case OP_XOR_INT_LIT16: - case OP_ADD_INT_LIT8: - case OP_RSUB_INT_LIT8: - case OP_MUL_INT_LIT8: - case OP_DIV_INT_LIT8: - case OP_REM_INT_LIT8: - case OP_AND_INT_LIT8: - case OP_OR_INT_LIT8: - case OP_XOR_INT_LIT8: - case OP_SHL_INT_LIT8: - case OP_SHR_INT_LIT8: - case OP_USHR_INT_LIT8: - width = 2; - break; - - case OP_MOVE_16: - case OP_MOVE_WIDE_16: - case OP_MOVE_OBJECT_16: - case OP_CONST: - case OP_CONST_WIDE_32: - case OP_CONST_STRING_JUMBO: - case OP_GOTO_32: - case OP_FILLED_NEW_ARRAY: - case OP_FILLED_NEW_ARRAY_RANGE: - case OP_FILL_ARRAY_DATA: - case OP_PACKED_SWITCH: - case OP_SPARSE_SWITCH: - case OP_INVOKE_VIRTUAL: - case OP_INVOKE_SUPER: - case OP_INVOKE_DIRECT: - case OP_INVOKE_STATIC: - case OP_INVOKE_INTERFACE: - case OP_INVOKE_VIRTUAL_RANGE: - case OP_INVOKE_SUPER_RANGE: - case OP_INVOKE_DIRECT_RANGE: - case OP_INVOKE_STATIC_RANGE: - case OP_INVOKE_INTERFACE_RANGE: - width = 3; - break; - - case OP_CONST_WIDE: - width = 5; - break; - - /* - * Optimized instructions. We return negative size values for these - * to distinguish them. - */ - case OP_IGET_QUICK: - case OP_IGET_WIDE_QUICK: - case OP_IGET_OBJECT_QUICK: - case OP_IPUT_QUICK: - case OP_IPUT_WIDE_QUICK: - case OP_IPUT_OBJECT_QUICK: - width = -2; - break; - case OP_INVOKE_VIRTUAL_QUICK: - case OP_INVOKE_VIRTUAL_QUICK_RANGE: - case OP_INVOKE_SUPER_QUICK: - case OP_INVOKE_SUPER_QUICK_RANGE: - case OP_EXECUTE_INLINE: - case OP_INVOKE_DIRECT_EMPTY: - width = -3; - break; - - /* these should never appear */ - case OP_UNUSED_3E: - case OP_UNUSED_3F: - case OP_UNUSED_40: - case OP_UNUSED_41: - case OP_UNUSED_42: - case OP_UNUSED_43: - case OP_UNUSED_73: - case OP_UNUSED_79: - case OP_UNUSED_7A: - case OP_UNUSED_E3: - case OP_UNUSED_E4: - case OP_UNUSED_E5: - case OP_UNUSED_E6: - case OP_UNUSED_E7: - case OP_UNUSED_E8: - case OP_UNUSED_E9: - case OP_UNUSED_EA: - case OP_UNUSED_EB: - case OP_UNUSED_EC: - case OP_UNUSED_ED: - case OP_UNUSED_EF: - case OP_UNUSED_F1: - case OP_UNUSED_FC: - case OP_UNUSED_FD: - case OP_UNUSED_FE: - case OP_UNUSED_FF: - assert(width == 0); - break; - - /* - * DO NOT add a "default" clause here. Without it the compiler will - * complain if an instruction is missing (which is desirable). - */ - } - - instrWidth[opc] = width; - } - - return instrWidth; -} - -/* - * Generate a table that holds instruction flags. - */ -InstructionFlags* dexCreateInstrFlagsTable(void) -{ - InstructionFlags* instrFlags; - int i; - - instrFlags = malloc(sizeof(InstructionFlags) * kNumDalvikInstructions); - if (instrFlags == NULL) - return NULL; - - for (i = 0; i < kNumDalvikInstructions; i++) { - OpCode opc = (OpCode) i; - InstructionFlags flags = 0; - - switch (opc) { - /* these don't affect the PC and can't cause an exception */ - case OP_NOP: - case OP_MOVE: - case OP_MOVE_FROM16: - case OP_MOVE_16: - case OP_MOVE_WIDE: - case OP_MOVE_WIDE_FROM16: - case OP_MOVE_WIDE_16: - case OP_MOVE_OBJECT: - case OP_MOVE_OBJECT_FROM16: - case OP_MOVE_OBJECT_16: - case OP_MOVE_RESULT: - case OP_MOVE_RESULT_WIDE: - case OP_MOVE_RESULT_OBJECT: - case OP_MOVE_EXCEPTION: - case OP_CONST_4: - case OP_CONST_16: - case OP_CONST: - case OP_CONST_HIGH16: - case OP_CONST_WIDE_16: - case OP_CONST_WIDE_32: - case OP_CONST_WIDE: - case OP_CONST_WIDE_HIGH16: - case OP_FILL_ARRAY_DATA: - case OP_CMPL_FLOAT: - case OP_CMPG_FLOAT: - case OP_CMPL_DOUBLE: - case OP_CMPG_DOUBLE: - case OP_CMP_LONG: - case OP_NEG_INT: - case OP_NOT_INT: - case OP_NEG_LONG: - case OP_NOT_LONG: - case OP_NEG_FLOAT: - case OP_NEG_DOUBLE: - case OP_INT_TO_LONG: - case OP_INT_TO_FLOAT: - case OP_INT_TO_DOUBLE: - case OP_LONG_TO_INT: - case OP_LONG_TO_FLOAT: - case OP_LONG_TO_DOUBLE: - case OP_FLOAT_TO_INT: - case OP_FLOAT_TO_LONG: - case OP_FLOAT_TO_DOUBLE: - case OP_DOUBLE_TO_INT: - case OP_DOUBLE_TO_LONG: - case OP_DOUBLE_TO_FLOAT: - case OP_INT_TO_BYTE: - case OP_INT_TO_CHAR: - case OP_INT_TO_SHORT: - case OP_ADD_INT: - case OP_SUB_INT: - case OP_MUL_INT: - case OP_AND_INT: - case OP_OR_INT: - case OP_XOR_INT: - case OP_SHL_INT: - case OP_SHR_INT: - case OP_USHR_INT: - case OP_ADD_LONG: - case OP_SUB_LONG: - case OP_MUL_LONG: - case OP_AND_LONG: - case OP_OR_LONG: - case OP_XOR_LONG: - case OP_SHL_LONG: - case OP_SHR_LONG: - case OP_USHR_LONG: - case OP_ADD_FLOAT: - case OP_SUB_FLOAT: - case OP_MUL_FLOAT: - case OP_DIV_FLOAT: - case OP_REM_FLOAT: - case OP_ADD_DOUBLE: - case OP_SUB_DOUBLE: - case OP_MUL_DOUBLE: - case OP_DIV_DOUBLE: // div by zero just returns NaN - case OP_REM_DOUBLE: - case OP_ADD_INT_2ADDR: - case OP_SUB_INT_2ADDR: - case OP_MUL_INT_2ADDR: - case OP_AND_INT_2ADDR: - case OP_OR_INT_2ADDR: - case OP_XOR_INT_2ADDR: - case OP_SHL_INT_2ADDR: - case OP_SHR_INT_2ADDR: - case OP_USHR_INT_2ADDR: - case OP_ADD_LONG_2ADDR: - case OP_SUB_LONG_2ADDR: - case OP_MUL_LONG_2ADDR: - case OP_AND_LONG_2ADDR: - case OP_OR_LONG_2ADDR: - case OP_XOR_LONG_2ADDR: - case OP_SHL_LONG_2ADDR: - case OP_SHR_LONG_2ADDR: - case OP_USHR_LONG_2ADDR: - case OP_ADD_FLOAT_2ADDR: - case OP_SUB_FLOAT_2ADDR: - case OP_MUL_FLOAT_2ADDR: - case OP_DIV_FLOAT_2ADDR: - case OP_REM_FLOAT_2ADDR: - case OP_ADD_DOUBLE_2ADDR: - case OP_SUB_DOUBLE_2ADDR: - case OP_MUL_DOUBLE_2ADDR: - case OP_DIV_DOUBLE_2ADDR: - case OP_REM_DOUBLE_2ADDR: - case OP_ADD_INT_LIT16: - case OP_RSUB_INT: - case OP_MUL_INT_LIT16: - case OP_AND_INT_LIT16: - case OP_OR_INT_LIT16: - case OP_XOR_INT_LIT16: - case OP_ADD_INT_LIT8: - case OP_RSUB_INT_LIT8: - case OP_MUL_INT_LIT8: - case OP_AND_INT_LIT8: - case OP_OR_INT_LIT8: - case OP_XOR_INT_LIT8: - case OP_SHL_INT_LIT8: - case OP_SHR_INT_LIT8: - case OP_USHR_INT_LIT8: - flags = kInstrCanContinue; - break; - - /* these don't affect the PC, but can cause exceptions */ - case OP_CONST_STRING: - case OP_CONST_STRING_JUMBO: - case OP_CONST_CLASS: - case OP_MONITOR_ENTER: - case OP_MONITOR_EXIT: - case OP_CHECK_CAST: - case OP_INSTANCE_OF: - case OP_ARRAY_LENGTH: - case OP_NEW_INSTANCE: - case OP_NEW_ARRAY: - case OP_FILLED_NEW_ARRAY: - case OP_FILLED_NEW_ARRAY_RANGE: - case OP_AGET: - case OP_AGET_BOOLEAN: - case OP_AGET_BYTE: - case OP_AGET_CHAR: - case OP_AGET_SHORT: - case OP_AGET_WIDE: - case OP_AGET_OBJECT: - case OP_APUT: - case OP_APUT_BOOLEAN: - case OP_APUT_BYTE: - case OP_APUT_CHAR: - case OP_APUT_SHORT: - case OP_APUT_WIDE: - case OP_APUT_OBJECT: - case OP_IGET: - case OP_IGET_BOOLEAN: - case OP_IGET_BYTE: - case OP_IGET_CHAR: - case OP_IGET_SHORT: - case OP_IGET_WIDE: - case OP_IGET_OBJECT: - case OP_IPUT: - case OP_IPUT_BOOLEAN: - case OP_IPUT_BYTE: - case OP_IPUT_CHAR: - case OP_IPUT_SHORT: - case OP_IPUT_WIDE: - case OP_IPUT_OBJECT: - case OP_SGET: - case OP_SGET_BOOLEAN: - case OP_SGET_BYTE: - case OP_SGET_CHAR: - case OP_SGET_SHORT: - case OP_SGET_WIDE: - case OP_SGET_OBJECT: - case OP_SPUT: - case OP_SPUT_BOOLEAN: - case OP_SPUT_BYTE: - case OP_SPUT_CHAR: - case OP_SPUT_SHORT: - case OP_SPUT_WIDE: - case OP_SPUT_OBJECT: - case OP_INVOKE_VIRTUAL: - case OP_INVOKE_VIRTUAL_RANGE: - case OP_INVOKE_SUPER: - case OP_INVOKE_SUPER_RANGE: - case OP_INVOKE_DIRECT: - case OP_INVOKE_DIRECT_RANGE: - case OP_INVOKE_STATIC: - case OP_INVOKE_STATIC_RANGE: - case OP_INVOKE_INTERFACE: - case OP_INVOKE_INTERFACE_RANGE: - case OP_DIV_INT: - case OP_REM_INT: - case OP_DIV_LONG: - case OP_REM_LONG: - case OP_DIV_INT_2ADDR: - case OP_REM_INT_2ADDR: - case OP_DIV_LONG_2ADDR: - case OP_REM_LONG_2ADDR: - case OP_DIV_INT_LIT16: - case OP_REM_INT_LIT16: - case OP_DIV_INT_LIT8: - case OP_REM_INT_LIT8: - flags = kInstrCanContinue | kInstrCanThrow; - break; - - case OP_RETURN_VOID: - case OP_RETURN: - case OP_RETURN_WIDE: - case OP_RETURN_OBJECT: - flags = kInstrCanReturn; - break; - - case OP_THROW: - flags = kInstrCanThrow; - break; - - /* unconditional branches */ - case OP_GOTO: - case OP_GOTO_16: - case OP_GOTO_32: - flags = kInstrCanBranch; - break; - - /* conditional branches */ - case OP_IF_EQ: - case OP_IF_NE: - case OP_IF_LT: - case OP_IF_GE: - case OP_IF_GT: - case OP_IF_LE: - case OP_IF_EQZ: - case OP_IF_NEZ: - case OP_IF_LTZ: - case OP_IF_GEZ: - case OP_IF_GTZ: - case OP_IF_LEZ: - flags = kInstrCanBranch | kInstrCanContinue; - break; - - /* switch statements; if value not in switch, it continues */ - case OP_PACKED_SWITCH: - case OP_SPARSE_SWITCH: - flags = kInstrCanSwitch | kInstrCanContinue; - break; - - /* optimizer-generated instructions */ - case OP_EXECUTE_INLINE: - flags = kInstrCanContinue; - break; - case OP_IGET_QUICK: - case OP_IGET_WIDE_QUICK: - case OP_IGET_OBJECT_QUICK: - case OP_IPUT_QUICK: - case OP_IPUT_WIDE_QUICK: - case OP_IPUT_OBJECT_QUICK: - case OP_INVOKE_VIRTUAL_QUICK: - case OP_INVOKE_VIRTUAL_QUICK_RANGE: - case OP_INVOKE_SUPER_QUICK: - case OP_INVOKE_SUPER_QUICK_RANGE: - case OP_INVOKE_DIRECT_EMPTY: - flags = kInstrCanContinue | kInstrCanThrow; - break; - - /* these should never appear */ - case OP_UNUSED_3E: - case OP_UNUSED_3F: - case OP_UNUSED_40: - case OP_UNUSED_41: - case OP_UNUSED_42: - case OP_UNUSED_43: - case OP_UNUSED_73: - case OP_UNUSED_79: - case OP_UNUSED_7A: - case OP_UNUSED_E3: - case OP_UNUSED_E4: - case OP_UNUSED_E5: - case OP_UNUSED_E6: - case OP_UNUSED_E7: - case OP_UNUSED_E8: - case OP_UNUSED_E9: - case OP_UNUSED_EA: - case OP_UNUSED_EB: - case OP_UNUSED_EC: - case OP_UNUSED_ED: - case OP_UNUSED_EF: - case OP_UNUSED_F1: - case OP_UNUSED_FC: - case OP_UNUSED_FD: - case OP_UNUSED_FE: - case OP_UNUSED_FF: - break; - - /* - * DO NOT add a "default" clause here. Without it the compiler will - * complain if an instruction is missing (which is desirable). - */ - } - - instrFlags[opc] = flags; - } - - return instrFlags; -} - -/* - * Allocate and populate a 256-element array with instruction formats. - * Used in conjunction with dexDecodeInstruction. - */ -InstructionFormat* dexCreateInstrFormatTable(void) -{ - InstructionFormat* instFmt; - int i; - - instFmt = malloc(sizeof(InstructionFormat) * kNumDalvikInstructions); - if (instFmt == NULL) - return NULL; - - for (i = 0; i < kNumDalvikInstructions; i++) { - OpCode opc = (OpCode) i; - InstructionFormat fmt = kFmtUnknown; - - switch (opc) { - case OP_GOTO: - fmt = kFmt10t; - break; - case OP_NOP: - case OP_RETURN_VOID: - fmt = kFmt10x; - break; - case OP_CONST_4: - fmt = kFmt11n; - break; - case OP_CONST_HIGH16: - case OP_CONST_WIDE_HIGH16: - fmt = kFmt21h; - break; - case OP_MOVE_RESULT: - case OP_MOVE_RESULT_WIDE: - case OP_MOVE_RESULT_OBJECT: - case OP_MOVE_EXCEPTION: - case OP_RETURN: - case OP_RETURN_WIDE: - case OP_RETURN_OBJECT: - case OP_MONITOR_ENTER: - case OP_MONITOR_EXIT: - case OP_THROW: - fmt = kFmt11x; - break; - case OP_MOVE: - case OP_MOVE_WIDE: - case OP_MOVE_OBJECT: - case OP_ARRAY_LENGTH: - case OP_NEG_INT: - case OP_NOT_INT: - case OP_NEG_LONG: - case OP_NOT_LONG: - case OP_NEG_FLOAT: - case OP_NEG_DOUBLE: - case OP_INT_TO_LONG: - case OP_INT_TO_FLOAT: - case OP_INT_TO_DOUBLE: - case OP_LONG_TO_INT: - case OP_LONG_TO_FLOAT: - case OP_LONG_TO_DOUBLE: - case OP_FLOAT_TO_INT: - case OP_FLOAT_TO_LONG: - case OP_FLOAT_TO_DOUBLE: - case OP_DOUBLE_TO_INT: - case OP_DOUBLE_TO_LONG: - case OP_DOUBLE_TO_FLOAT: - case OP_INT_TO_BYTE: - case OP_INT_TO_CHAR: - case OP_INT_TO_SHORT: - case OP_ADD_INT_2ADDR: - case OP_SUB_INT_2ADDR: - case OP_MUL_INT_2ADDR: - case OP_DIV_INT_2ADDR: - case OP_REM_INT_2ADDR: - case OP_AND_INT_2ADDR: - case OP_OR_INT_2ADDR: - case OP_XOR_INT_2ADDR: - case OP_SHL_INT_2ADDR: - case OP_SHR_INT_2ADDR: - case OP_USHR_INT_2ADDR: - case OP_ADD_LONG_2ADDR: - case OP_SUB_LONG_2ADDR: - case OP_MUL_LONG_2ADDR: - case OP_DIV_LONG_2ADDR: - case OP_REM_LONG_2ADDR: - case OP_AND_LONG_2ADDR: - case OP_OR_LONG_2ADDR: - case OP_XOR_LONG_2ADDR: - case OP_SHL_LONG_2ADDR: - case OP_SHR_LONG_2ADDR: - case OP_USHR_LONG_2ADDR: - case OP_ADD_FLOAT_2ADDR: - case OP_SUB_FLOAT_2ADDR: - case OP_MUL_FLOAT_2ADDR: - case OP_DIV_FLOAT_2ADDR: - case OP_REM_FLOAT_2ADDR: - case OP_ADD_DOUBLE_2ADDR: - case OP_SUB_DOUBLE_2ADDR: - case OP_MUL_DOUBLE_2ADDR: - case OP_DIV_DOUBLE_2ADDR: - case OP_REM_DOUBLE_2ADDR: - fmt = kFmt12x; - break; - case OP_GOTO_16: - fmt = kFmt20t; - break; - case OP_GOTO_32: - fmt = kFmt30t; - break; - case OP_CONST_STRING: - case OP_CONST_CLASS: - case OP_CHECK_CAST: - case OP_NEW_INSTANCE: - case OP_SGET: - case OP_SGET_WIDE: - case OP_SGET_OBJECT: - case OP_SGET_BOOLEAN: - case OP_SGET_BYTE: - case OP_SGET_CHAR: - case OP_SGET_SHORT: - case OP_SPUT: - case OP_SPUT_WIDE: - case OP_SPUT_OBJECT: - case OP_SPUT_BOOLEAN: - case OP_SPUT_BYTE: - case OP_SPUT_CHAR: - case OP_SPUT_SHORT: - fmt = kFmt21c; - break; - case OP_CONST_16: - case OP_CONST_WIDE_16: - fmt = kFmt21s; - break; - case OP_IF_EQZ: - case OP_IF_NEZ: - case OP_IF_LTZ: - case OP_IF_GEZ: - case OP_IF_GTZ: - case OP_IF_LEZ: - fmt = kFmt21t; - break; - case OP_FILL_ARRAY_DATA: - case OP_PACKED_SWITCH: - case OP_SPARSE_SWITCH: - fmt = kFmt31t; - break; - case OP_ADD_INT_LIT8: - case OP_RSUB_INT_LIT8: - case OP_MUL_INT_LIT8: - case OP_DIV_INT_LIT8: - case OP_REM_INT_LIT8: - case OP_AND_INT_LIT8: - case OP_OR_INT_LIT8: - case OP_XOR_INT_LIT8: - case OP_SHL_INT_LIT8: - case OP_SHR_INT_LIT8: - case OP_USHR_INT_LIT8: - fmt = kFmt22b; - break; - case OP_INSTANCE_OF: - case OP_NEW_ARRAY: - case OP_IGET: - case OP_IGET_WIDE: - case OP_IGET_OBJECT: - case OP_IGET_BOOLEAN: - case OP_IGET_BYTE: - case OP_IGET_CHAR: - case OP_IGET_SHORT: - case OP_IPUT: - case OP_IPUT_WIDE: - case OP_IPUT_OBJECT: - case OP_IPUT_BOOLEAN: - case OP_IPUT_BYTE: - case OP_IPUT_CHAR: - case OP_IPUT_SHORT: - fmt = kFmt22c; - break; - case OP_ADD_INT_LIT16: - case OP_RSUB_INT: - case OP_MUL_INT_LIT16: - case OP_DIV_INT_LIT16: - case OP_REM_INT_LIT16: - case OP_AND_INT_LIT16: - case OP_OR_INT_LIT16: - case OP_XOR_INT_LIT16: - fmt = kFmt22s; - break; - case OP_IF_EQ: - case OP_IF_NE: - case OP_IF_LT: - case OP_IF_GE: - case OP_IF_GT: - case OP_IF_LE: - fmt = kFmt22t; - break; - case OP_MOVE_FROM16: - case OP_MOVE_WIDE_FROM16: - case OP_MOVE_OBJECT_FROM16: - fmt = kFmt22x; - break; - case OP_CMPL_FLOAT: - case OP_CMPG_FLOAT: - case OP_CMPL_DOUBLE: - case OP_CMPG_DOUBLE: - case OP_CMP_LONG: - case OP_AGET: - case OP_AGET_WIDE: - case OP_AGET_OBJECT: - case OP_AGET_BOOLEAN: - case OP_AGET_BYTE: - case OP_AGET_CHAR: - case OP_AGET_SHORT: - case OP_APUT: - case OP_APUT_WIDE: - case OP_APUT_OBJECT: - case OP_APUT_BOOLEAN: - case OP_APUT_BYTE: - case OP_APUT_CHAR: - case OP_APUT_SHORT: - case OP_ADD_INT: - case OP_SUB_INT: - case OP_MUL_INT: - case OP_DIV_INT: - case OP_REM_INT: - case OP_AND_INT: - case OP_OR_INT: - case OP_XOR_INT: - case OP_SHL_INT: - case OP_SHR_INT: - case OP_USHR_INT: - case OP_ADD_LONG: - case OP_SUB_LONG: - case OP_MUL_LONG: - case OP_DIV_LONG: - case OP_REM_LONG: - case OP_AND_LONG: - case OP_OR_LONG: - case OP_XOR_LONG: - case OP_SHL_LONG: - case OP_SHR_LONG: - case OP_USHR_LONG: - case OP_ADD_FLOAT: - case OP_SUB_FLOAT: - case OP_MUL_FLOAT: - case OP_DIV_FLOAT: - case OP_REM_FLOAT: - case OP_ADD_DOUBLE: - case OP_SUB_DOUBLE: - case OP_MUL_DOUBLE: - case OP_DIV_DOUBLE: - case OP_REM_DOUBLE: - fmt = kFmt23x; - break; - case OP_CONST: - case OP_CONST_WIDE_32: - fmt = kFmt31i; - break; - case OP_CONST_STRING_JUMBO: - fmt = kFmt31c; - break; - case OP_MOVE_16: - case OP_MOVE_WIDE_16: - case OP_MOVE_OBJECT_16: - fmt = kFmt32x; - break; - case OP_FILLED_NEW_ARRAY: - case OP_INVOKE_VIRTUAL: - case OP_INVOKE_SUPER: - case OP_INVOKE_DIRECT: - case OP_INVOKE_STATIC: - case OP_INVOKE_INTERFACE: - fmt = kFmt35c; - break; - case OP_FILLED_NEW_ARRAY_RANGE: - case OP_INVOKE_VIRTUAL_RANGE: - case OP_INVOKE_SUPER_RANGE: - case OP_INVOKE_DIRECT_RANGE: - case OP_INVOKE_STATIC_RANGE: - case OP_INVOKE_INTERFACE_RANGE: - fmt = kFmt3rc; - break; - case OP_CONST_WIDE: - fmt = kFmt51l; - break; - - /* - * Optimized instructions. - */ - case OP_IGET_QUICK: - case OP_IGET_WIDE_QUICK: - case OP_IGET_OBJECT_QUICK: - case OP_IPUT_QUICK: - case OP_IPUT_WIDE_QUICK: - case OP_IPUT_OBJECT_QUICK: - fmt = kFmt22cs; - break; - case OP_INVOKE_VIRTUAL_QUICK: - case OP_INVOKE_SUPER_QUICK: - fmt = kFmt35ms; - break; - case OP_INVOKE_VIRTUAL_QUICK_RANGE: - case OP_INVOKE_SUPER_QUICK_RANGE: - fmt = kFmt3rms; - break; - case OP_EXECUTE_INLINE: - fmt = kFmt3inline; - break; - case OP_INVOKE_DIRECT_EMPTY: - fmt = kFmt35c; - break; - - /* these should never appear */ - case OP_UNUSED_3E: - case OP_UNUSED_3F: - case OP_UNUSED_40: - case OP_UNUSED_41: - case OP_UNUSED_42: - case OP_UNUSED_43: - case OP_UNUSED_73: - case OP_UNUSED_79: - case OP_UNUSED_7A: - case OP_UNUSED_E3: - case OP_UNUSED_E4: - case OP_UNUSED_E5: - case OP_UNUSED_E6: - case OP_UNUSED_E7: - case OP_UNUSED_E8: - case OP_UNUSED_E9: - case OP_UNUSED_EA: - case OP_UNUSED_EB: - case OP_UNUSED_EC: - case OP_UNUSED_ED: - case OP_UNUSED_EF: - case OP_UNUSED_F1: - case OP_UNUSED_FC: - case OP_UNUSED_FD: - case OP_UNUSED_FE: - case OP_UNUSED_FF: - fmt = kFmtUnknown; - break; - - /* - * DO NOT add a "default" clause here. Without it the compiler will - * complain if an instruction is missing (which is desirable). - */ - } - - instFmt[opc] = fmt; - } - - return instFmt; -} - -/* - * Copied from InterpCore.h. Used for instruction decoding. - */ -#define FETCH(_offset) (insns[(_offset)]) -#define INST_INST(_inst) ((_inst) & 0xff) -#define INST_A(_inst) (((u2)(_inst) >> 8) & 0x0f) -#define INST_B(_inst) ((u2)(_inst) >> 12) -#define INST_AA(_inst) ((_inst) >> 8) - -/* - * Decode the instruction pointed to by "insns". - * - * Fills out the pieces of "pDec" that are affected by the current - * instruction. Does not touch anything else. - */ -void dexDecodeInstruction(const InstructionFormat* fmts, const u2* insns, - DecodedInstruction* pDec) -{ - u2 inst = *insns; - - pDec->opCode = (OpCode) INST_INST(inst); - - switch (dexGetInstrFormat(fmts, pDec->opCode)) { - case kFmt10x: // op - /* nothing to do; copy the AA bits out for the verifier */ - pDec->vA = INST_AA(inst); - break; - case kFmt12x: // op vA, vB - pDec->vA = INST_A(inst); - pDec->vB = INST_B(inst); - break; - case kFmt11n: // op vA, #+B - pDec->vA = INST_A(inst); - pDec->vB = (s4) (INST_B(inst) << 28) >> 28; // sign extend 4-bit value - break; - case kFmt11x: // op vAA - pDec->vA = INST_AA(inst); - break; - case kFmt10t: // op +AA - pDec->vA = (s1) INST_AA(inst); // sign-extend 8-bit value - break; - case kFmt20t: // op +AAAA - pDec->vA = (s2) FETCH(1); // sign-extend 16-bit value - break; - case kFmt21c: // op vAA, thing@BBBB - case kFmt22x: // op vAA, vBBBB - pDec->vA = INST_AA(inst); - pDec->vB = FETCH(1); - break; - case kFmt21s: // op vAA, #+BBBB - case kFmt21t: // op vAA, +BBBB - pDec->vA = INST_AA(inst); - pDec->vB = (s2) FETCH(1); // sign-extend 16-bit value - break; - case kFmt21h: // op vAA, #+BBBB0000[00000000] - pDec->vA = INST_AA(inst); - /* - * The value should be treated as right-zero-extended, but we don't - * actually do that here. Among other things, we don't know if it's - * the top bits of a 32- or 64-bit value. - */ - pDec->vB = FETCH(1); - break; - case kFmt23x: // op vAA, vBB, vCC - pDec->vA = INST_AA(inst); - pDec->vB = FETCH(1) & 0xff; - pDec->vC = FETCH(1) >> 8; - break; - case kFmt22b: // op vAA, vBB, #+CC - pDec->vA = INST_AA(inst); - pDec->vB = FETCH(1) & 0xff; - pDec->vC = (s1) (FETCH(1) >> 8); // sign-extend 8-bit value - break; - case kFmt22s: // op vA, vB, #+CCCC - case kFmt22t: // op vA, vB, +CCCC - pDec->vA = INST_A(inst); - pDec->vB = INST_B(inst); - pDec->vC = (s2) FETCH(1); // sign-extend 16-bit value - break; - case kFmt22c: // op vA, vB, thing@CCCC - case kFmt22cs: // [opt] op vA, vB, field offset CCCC - pDec->vA = INST_A(inst); - pDec->vB = INST_B(inst); - pDec->vC = FETCH(1); - break; - case kFmt30t: // op +AAAAAAAA - pDec->vA = FETCH(1) | ((u4) FETCH(2) << 16); // signed 32-bit value - break; - case kFmt31t: // op vAA, +BBBBBBBB - case kFmt31c: // op vAA, thing@BBBBBBBB - pDec->vA = INST_AA(inst); - pDec->vB = FETCH(1) | ((u4) FETCH(2) << 16); // 32-bit value - break; - case kFmt32x: // op vAAAA, vBBBB - pDec->vA = FETCH(1); - pDec->vB = FETCH(2); - break; - case kFmt31i: // op vAA, #+BBBBBBBB - pDec->vA = INST_AA(inst); - pDec->vB = FETCH(1) | ((u4) FETCH(2) << 16); - break; - case kFmt35c: // op vB, {vD..vG,vA}, thing@CCCC - case kFmt35ms: // [opt] invoke-virtual+super - { - /* - * The lettering changes that came about when we went from 4 args - * to 5 made the "range" versions of the calls different from - * the non-range versions. We have the choice between decoding - * them the way the spec shows and having lots of conditionals - * in the verifier, or mapping the values onto their original - * registers and leaving the verifier intact. - * - * Current plan is to leave the verifier alone. We can fix it - * later if it's architecturally unbearable. - * - * Bottom line: method constant is always in vB. - */ - u2 regList; - int i, count; - - pDec->vA = INST_B(inst); - pDec->vB = FETCH(1); - regList = FETCH(2); - - if (pDec->vA > 5) { - LOGW("Invalid arg count in 35c/35ms (%d)\n", pDec->vA); - goto bail; - } - count = pDec->vA; - if (count == 5) { - /* 5th arg comes from A field in instruction */ - pDec->arg[4] = INST_A(inst); - count--; - } - for (i = 0; i < count; i++) { - pDec->arg[i] = regList & 0x0f; - regList >>= 4; - } - /* copy arg[0] to vC; we don't have vD/vE/vF, so ignore those */ - if (pDec->vA > 0) - pDec->vC = pDec->arg[0]; - } - break; - case kFmt3inline: // [opt] inline invoke - { - u2 regList; - int i; - - pDec->vA = INST_B(inst); - pDec->vB = FETCH(1); - regList = FETCH(2); - - if (pDec->vA > 4) { - LOGW("Invalid arg count in 3inline (%d)\n", pDec->vA); - goto bail; - } - for (i = 0; i < (int) pDec->vA; i++) { - pDec->arg[i] = regList & 0x0f; - regList >>= 4; - } - /* copy arg[0] to vC; we don't have vD/vE/vF, so ignore those */ - if (pDec->vA > 0) - pDec->vC = pDec->arg[0]; - } - break; - case kFmt35fs: // [opt] invoke-interface - assert(false); // TODO - break; - case kFmt3rc: // op {vCCCC .. v(CCCC+AA-1)}, meth@BBBB - case kFmt3rms: // [opt] invoke-virtual+super/range - pDec->vA = INST_AA(inst); - pDec->vB = FETCH(1); - pDec->vC = FETCH(2); - break; - case kFmt3rfs: // [opt] invoke-interface/range - assert(false); // TODO - break; - case kFmt51l: // op vAA, #+BBBBBBBBBBBBBBBB - pDec->vA = INST_AA(inst); - pDec->vB_wide = FETCH(1); - pDec->vB_wide |= (u8)FETCH(2) << 16; - pDec->vB_wide |= (u8)FETCH(3) << 32; - pDec->vB_wide |= (u8)FETCH(4) << 48; - break; - default: - LOGW("Can't decode unexpected format %d (op=%d)\n", - dexGetInstrFormat(fmts, pDec->opCode), pDec->opCode); - assert(false); - break; - } - -bail: - ; -} - -/* - * Return the width of the specified instruction, or 0 if not defined. Also - * works for special OP_NOP entries, including switch statement data tables - * and array data. - */ -int dexGetInstrOrTableWidthAbs(const InstructionWidth* widths, const u2* insns) -{ - int width; - - if (*insns == kPackedSwitchSignature) { - width = 4 + insns[1] * 2; - } else if (*insns == kSparseSwitchSignature) { - width = 2 + insns[1] * 4; - } else if (*insns == kArrayDataSignature) { - u2 elemWidth = insns[1]; - u4 len = insns[2] | (((u4)insns[3]) << 16); - width = 4 + (elemWidth * len + 1) / 2; - } else { - width = dexGetInstrWidthAbs(widths, INST_INST(insns[0])); - } - return width; -} diff --git a/libdex/InstrUtils.h b/libdex/InstrUtils.h deleted file mode 100644 index 9d8e5c37a..000000000 --- a/libdex/InstrUtils.h +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Dalvik instruction utility functions. - */ -#ifndef _LIBDEX_INSTRUTILS -#define _LIBDEX_INSTRUTILS - -#include "DexFile.h" -#include "OpCode.h" - -/* - * Dalvik-defined instruction formats. - * - * (This defines InstructionFormat as an unsigned char to reduce the size - * of the table. This isn't necessary with some compilers, which use an - * integer width appropriate for the number of enum values.) - * - * If you add or delete a format, you have to change some or all of: - * - this enum - * - the switch inside dexDecodeInstruction() in InstrUtils.c - * - the switch inside dumpInstruction() in DexDump.c - */ -typedef unsigned char InstructionFormat; -enum InstructionFormat { - kFmtUnknown = 0, - kFmt10x, // op - kFmt12x, // op vA, vB - kFmt11n, // op vA, #+B - kFmt11x, // op vAA - kFmt10t, // op +AA - kFmt20t, // op +AAAA - kFmt22x, // op vAA, vBBBB - kFmt21t, // op vAA, +BBBB - kFmt21s, // op vAA, #+BBBB - kFmt21h, // op vAA, #+BBBB00000[00000000] - kFmt21c, // op vAA, thing@BBBB - kFmt23x, // op vAA, vBB, vCC - kFmt22b, // op vAA, vBB, #+CC - kFmt22t, // op vA, vB, +CCCC - kFmt22s, // op vA, vB, #+CCCC - kFmt22c, // op vA, vB, thing@CCCC - kFmt22cs, // [opt] op vA, vB, field offset CCCC - kFmt32x, // op vAAAA, vBBBB - kFmt30t, // op +AAAAAAAA - kFmt31t, // op vAA, +BBBBBBBB - kFmt31i, // op vAA, #+BBBBBBBB - kFmt31c, // op vAA, thing@BBBBBBBB - kFmt35c, // op {vC, vD, vE, vF, vG}, thing@BBBB (B: count, A: vG) - kFmt35ms, // [opt] invoke-virtual+super - kFmt35fs, // [opt] invoke-interface - kFmt3rc, // op {vCCCC .. v(CCCC+AA-1)}, meth@BBBB - kFmt3rms, // [opt] invoke-virtual+super/range - kFmt3rfs, // [opt] invoke-interface/range - kFmt3inline, // [opt] inline invoke - kFmt51l, // op vAA, #+BBBBBBBBBBBBBBBB -}; - -/* - * Holds the contents of a decoded instruction. - */ -typedef struct DecodedInstruction { - u4 vA; - u4 vB; - u8 vB_wide; /* for kFmt51l */ - u4 vC; - u4 arg[5]; /* vC/D/E/F/G in invoke or filled-new-array */ - OpCode opCode; -} DecodedInstruction; - -/* - * Instruction width, a value in the range -3 to 5. - */ -typedef signed char InstructionWidth; - -/* - * Instruction flags, used by the verifier to determine where control - * can flow to next. - */ -typedef unsigned char InstructionFlags; -enum InstructionFlags { - kInstrCanBranch = 1, // conditional or unconditional branch - kInstrCanContinue = 1 << 1, // flow can continue to next statement - kInstrCanSwitch = 1 << 2, // switch statement - kInstrCanThrow = 1 << 3, // could cause an exception to be thrown - kInstrCanReturn = 1 << 4, // returns, no additional statements -}; - - -/* - * Allocate and populate a 256-element array with instruction widths. A - * width of zero means the entry does not exist. - */ -InstructionWidth* dexCreateInstrWidthTable(void); - -/* - * Returns the width of the specified instruction, or 0 if not defined. - * Optimized instructions use negative values. - */ -DEX_INLINE int dexGetInstrWidth(const InstructionWidth* widths, OpCode opCode) -{ - // assert(/*opCode >= 0 &&*/ opCode < kNumDalvikInstructions); - return widths[opCode]; -} - -/* - * Return the width of the specified instruction, or 0 if not defined. - */ -DEX_INLINE int dexGetInstrWidthAbs(const InstructionWidth* widths,OpCode opCode) -{ - //assert(/*opCode >= 0 &&*/ opCode < kNumDalvikInstructions); - - int val = dexGetInstrWidth(widths, opCode); - if (val < 0) - val = -val; - /* XXX - the no-compare trick may be a cycle slower on ARM */ - return val; -} - -/* - * Return the width of the specified instruction, or 0 if not defined. Also - * works for special OP_NOP entries, including switch statement data tables - * and array data. - */ -int dexGetInstrOrTableWidthAbs(const InstructionWidth* widths, const u2* insns); - - -/* - * Allocate and populate a 256-element array with instruction flags. - */ -InstructionFlags* dexCreateInstrFlagsTable(void); - -/* - * Returns the flags for the specified opcode. - */ -DEX_INLINE int dexGetInstrFlags(const InstructionFlags* flags, OpCode opCode) -{ - //assert(/*opCode >= 0 &&*/ opCode < kNumDalvikInstructions); - return flags[opCode]; -} - - -/* - * Allocate and populate a 256-element array with instruction formats. - */ -InstructionFormat* dexCreateInstrFormatTable(void); - -/* - * Return the instruction format for the specified opcode. - */ -DEX_INLINE InstructionFormat dexGetInstrFormat(const InstructionFormat* fmts, - OpCode opCode) -{ - //assert(/*opCode >= 0 &&*/ opCode < kNumDalvikInstructions); - return fmts[opCode]; -} - -/* - * Decode the instruction pointed to by "insns". - */ -void dexDecodeInstruction(const InstructionFormat* fmts, const u2* insns, - DecodedInstruction* pDec); - -#endif /*_LIBDEX_INSTRUTILS*/ diff --git a/libdex/Leb128.c b/libdex/Leb128.c deleted file mode 100644 index ed09e19aa..000000000 --- a/libdex/Leb128.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions for interpreting LEB128 (little endian base 128) values - */ - -#include "Leb128.h" - -/* - * Reads an unsigned LEB128 value, updating the given pointer to point - * just past the end of the read value and also indicating whether the - * value was syntactically valid. The only syntactically *invalid* - * values are ones that are five bytes long where the final byte has - * any but the low-order four bits set. Additionally, if the limit is - * passed as non-NULL and bytes would need to be read past the limit, - * then the read is considered invalid. - */ -int readAndVerifyUnsignedLeb128(const u1** pStream, const u1* limit, - bool* okay) { - const u1* ptr = *pStream; - int result = readUnsignedLeb128(pStream); - - if (((limit != NULL) && (*pStream > limit)) - || (((*pStream - ptr) == 5) && (ptr[4] > 0x0f))) { - *okay = false; - } - - return result; -} - -/* - * Reads a signed LEB128 value, updating the given pointer to point - * just past the end of the read value and also indicating whether the - * value was syntactically valid. The only syntactically *invalid* - * values are ones that are five bytes long where the final byte has - * any but the low-order four bits set. Additionally, if the limit is - * passed as non-NULL and bytes would need to be read past the limit, - * then the read is considered invalid. - */ -int readAndVerifySignedLeb128(const u1** pStream, const u1* limit, - bool* okay) { - const u1* ptr = *pStream; - int result = readSignedLeb128(pStream); - - if (((limit != NULL) && (*pStream > limit)) - || (((*pStream - ptr) == 5) && (ptr[4] > 0x0f))) { - *okay = false; - } - - return result; -} diff --git a/libdex/Leb128.h b/libdex/Leb128.h deleted file mode 100644 index 215ae3025..000000000 --- a/libdex/Leb128.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Functions for interpreting LEB128 (little endian base 128) values - */ - -#ifndef _LIBDEX_LEB128 -#define _LIBDEX_LEB128 - -#include "DexFile.h" - -/* - * Reads an unsigned LEB128 value, updating the given pointer to point - * just past the end of the read value. This function tolerates - * non-zero high-order bits in the fifth encoded byte. - */ -DEX_INLINE int readUnsignedLeb128(const u1** pStream) { - const u1* ptr = *pStream; - int result = *(ptr++); - - if (result > 0x7f) { - int cur = *(ptr++); - result = (result & 0x7f) | ((cur & 0x7f) << 7); - if (cur > 0x7f) { - cur = *(ptr++); - result |= (cur & 0x7f) << 14; - if (cur > 0x7f) { - cur = *(ptr++); - result |= (cur & 0x7f) << 21; - if (cur > 0x7f) { - /* - * Note: We don't check to see if cur is out of - * range here, meaning we tolerate garbage in the - * high four-order bits. - */ - cur = *(ptr++); - result |= cur << 28; - } - } - } - } - - *pStream = ptr; - return result; -} - -/* - * Reads a signed LEB128 value, updating the given pointer to point - * just past the end of the read value. This function tolerates - * non-zero high-order bits in the fifth encoded byte. - */ -DEX_INLINE int readSignedLeb128(const u1** pStream) { - const u1* ptr = *pStream; - int result = *(ptr++); - - if (result <= 0x7f) { - result = (result << 25) >> 25; - } else { - int cur = *(ptr++); - result = (result & 0x7f) | ((cur & 0x7f) << 7); - if (cur <= 0x7f) { - result = (result << 18) >> 18; - } else { - cur = *(ptr++); - result |= (cur & 0x7f) << 14; - if (cur <= 0x7f) { - result = (result << 11) >> 11; - } else { - cur = *(ptr++); - result |= (cur & 0x7f) << 21; - if (cur <= 0x7f) { - result = (result << 4) >> 4; - } else { - /* - * Note: We don't check to see if cur is out of - * range here, meaning we tolerate garbage in the - * high four-order bits. - */ - cur = *(ptr++); - result |= cur << 28; - } - } - } - } - - *pStream = ptr; - return result; -} - -/* - * Reads an unsigned LEB128 value, updating the given pointer to point - * just past the end of the read value and also indicating whether the - * value was syntactically valid. The only syntactically *invalid* - * values are ones that are five bytes long where the final byte has - * any but the low-order four bits set. Additionally, if the limit is - * passed as non-NULL and bytes would need to be read past the limit, - * then the read is considered invalid. - */ -int readAndVerifyUnsignedLeb128(const u1** pStream, const u1* limit, - bool* okay); - -/* - * Reads a signed LEB128 value, updating the given pointer to point - * just past the end of the read value and also indicating whether the - * value was syntactically valid. The only syntactically *invalid* - * values are ones that are five bytes long where the final byte has - * any but the low-order four bits set. Additionally, if the limit is - * passed as non-NULL and bytes would need to be read past the limit, - * then the read is considered invalid. - */ -int readAndVerifySignedLeb128(const u1** pStream, const u1* limit, bool* okay); - -#endif diff --git a/libdex/OpCode.h b/libdex/OpCode.h deleted file mode 100644 index d38947290..000000000 --- a/libdex/OpCode.h +++ /dev/null @@ -1,653 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Dalvik opcode enumeration. - */ -#ifndef _LIBDEX_OPCODE -#define _LIBDEX_OPCODE - -/* - * If you add, delete, or renumber instructions, you need to change things - * in various places. Renumbering really only affects the "unused" opcodes, - * which are given explicit enumeration values to make it easier to find - * the places in the code that need to be updated when making changes -- - * if you replace "OP_UNUSED_2D" and neglect to update a switch statement, - * the compiler will complain about an unknown value. - * - * Opcode definitions and attributes: - * - update the OpCode enum below - * - update the "goto table" definition macro, DEFINE_GOTO_TABLE(), below - * - update the instruction info table generators and (if you changed an - * instruction format) instruction decoder in InstrUtils.c - * - update the instruction format list in InstrUtils.h, if necessary - * - update the parallel definitions in the class dalvik.bytecode.Opcodes - * - * Interpreter: - * - implement/update the instruction in C in mterp/c/... - * - verify new code by running with "dalvik.vm.execution-mode = - * int:portable" or "-Xint:portable" - * - implement/update the instruction in ARM in mterp/armv5/... - * - verify by enabling ARM handler for that instruction in mterp config - * and running int:fast as above - * - repeat for other platforms (x86, ...) - * (see notes in mterp/ReadMe.txt for rebuilding instructions) - * - * Verifier / optimizer: - * - update some stuff in analysis/DexOptimize.c, analysis/DexVerify.c, - * and/or analysis/CodeVerify.c as needed - * - verify by running with verifier enabled (it's on by default) - * - * Tools: - * - update the OpCodeNames table in dexdump/OpCodeNames.c - * - update dexdump/DexDump.c if an instruction format has changed - * - * Note: The Dalvik VM tests (in the tests subdirectory) provide a convenient - * way to test most of the above without doing any rebuilds. In particular, - * test 003-omnibus-opcodes will exercise most of the opcodes. - */ - -/* - * Dalvik opcode list. - */ -typedef enum OpCode { - OP_NOP = 0x00, - - OP_MOVE = 0x01, - OP_MOVE_FROM16 = 0x02, - OP_MOVE_16 = 0x03, - OP_MOVE_WIDE = 0x04, - OP_MOVE_WIDE_FROM16 = 0x05, - OP_MOVE_WIDE_16 = 0x06, - OP_MOVE_OBJECT = 0x07, - OP_MOVE_OBJECT_FROM16 = 0x08, - OP_MOVE_OBJECT_16 = 0x09, - - OP_MOVE_RESULT = 0x0a, - OP_MOVE_RESULT_WIDE = 0x0b, - OP_MOVE_RESULT_OBJECT = 0x0c, - OP_MOVE_EXCEPTION = 0x0d, - - OP_RETURN_VOID = 0x0e, - OP_RETURN = 0x0f, - OP_RETURN_WIDE = 0x10, - OP_RETURN_OBJECT = 0x11, - - OP_CONST_4 = 0x12, - OP_CONST_16 = 0x13, - OP_CONST = 0x14, - OP_CONST_HIGH16 = 0x15, - OP_CONST_WIDE_16 = 0x16, - OP_CONST_WIDE_32 = 0x17, - OP_CONST_WIDE = 0x18, - OP_CONST_WIDE_HIGH16 = 0x19, - OP_CONST_STRING = 0x1a, - OP_CONST_STRING_JUMBO = 0x1b, - OP_CONST_CLASS = 0x1c, - - OP_MONITOR_ENTER = 0x1d, - OP_MONITOR_EXIT = 0x1e, - - OP_CHECK_CAST = 0x1f, - OP_INSTANCE_OF = 0x20, - - OP_ARRAY_LENGTH = 0x21, - - OP_NEW_INSTANCE = 0x22, - OP_NEW_ARRAY = 0x23, - - OP_FILLED_NEW_ARRAY = 0x24, - OP_FILLED_NEW_ARRAY_RANGE = 0x25, - OP_FILL_ARRAY_DATA = 0x26, - - OP_THROW = 0x27, - OP_GOTO = 0x28, - OP_GOTO_16 = 0x29, - OP_GOTO_32 = 0x2a, - OP_PACKED_SWITCH = 0x2b, - OP_SPARSE_SWITCH = 0x2c, - - OP_CMPL_FLOAT = 0x2d, - OP_CMPG_FLOAT = 0x2e, - OP_CMPL_DOUBLE = 0x2f, - OP_CMPG_DOUBLE = 0x30, - OP_CMP_LONG = 0x31, - - OP_IF_EQ = 0x32, - OP_IF_NE = 0x33, - OP_IF_LT = 0x34, - OP_IF_GE = 0x35, - OP_IF_GT = 0x36, - OP_IF_LE = 0x37, - OP_IF_EQZ = 0x38, - OP_IF_NEZ = 0x39, - OP_IF_LTZ = 0x3a, - OP_IF_GEZ = 0x3b, - OP_IF_GTZ = 0x3c, - OP_IF_LEZ = 0x3d, - - OP_UNUSED_3E = 0x3e, - OP_UNUSED_3F = 0x3f, - OP_UNUSED_40 = 0x40, - OP_UNUSED_41 = 0x41, - OP_UNUSED_42 = 0x42, - OP_UNUSED_43 = 0x43, - - OP_AGET = 0x44, - OP_AGET_WIDE = 0x45, - OP_AGET_OBJECT = 0x46, - OP_AGET_BOOLEAN = 0x47, - OP_AGET_BYTE = 0x48, - OP_AGET_CHAR = 0x49, - OP_AGET_SHORT = 0x4a, - OP_APUT = 0x4b, - OP_APUT_WIDE = 0x4c, - OP_APUT_OBJECT = 0x4d, - OP_APUT_BOOLEAN = 0x4e, - OP_APUT_BYTE = 0x4f, - OP_APUT_CHAR = 0x50, - OP_APUT_SHORT = 0x51, - - OP_IGET = 0x52, - OP_IGET_WIDE = 0x53, - OP_IGET_OBJECT = 0x54, - OP_IGET_BOOLEAN = 0x55, - OP_IGET_BYTE = 0x56, - OP_IGET_CHAR = 0x57, - OP_IGET_SHORT = 0x58, - OP_IPUT = 0x59, - OP_IPUT_WIDE = 0x5a, - OP_IPUT_OBJECT = 0x5b, - OP_IPUT_BOOLEAN = 0x5c, - OP_IPUT_BYTE = 0x5d, - OP_IPUT_CHAR = 0x5e, - OP_IPUT_SHORT = 0x5f, - - OP_SGET = 0x60, - OP_SGET_WIDE = 0x61, - OP_SGET_OBJECT = 0x62, - OP_SGET_BOOLEAN = 0x63, - OP_SGET_BYTE = 0x64, - OP_SGET_CHAR = 0x65, - OP_SGET_SHORT = 0x66, - OP_SPUT = 0x67, - OP_SPUT_WIDE = 0x68, - OP_SPUT_OBJECT = 0x69, - OP_SPUT_BOOLEAN = 0x6a, - OP_SPUT_BYTE = 0x6b, - OP_SPUT_CHAR = 0x6c, - OP_SPUT_SHORT = 0x6d, - - OP_INVOKE_VIRTUAL = 0x6e, - OP_INVOKE_SUPER = 0x6f, - OP_INVOKE_DIRECT = 0x70, - OP_INVOKE_STATIC = 0x71, - OP_INVOKE_INTERFACE = 0x72, - - OP_UNUSED_73 = 0x73, - - OP_INVOKE_VIRTUAL_RANGE = 0x74, - OP_INVOKE_SUPER_RANGE = 0x75, - OP_INVOKE_DIRECT_RANGE = 0x76, - OP_INVOKE_STATIC_RANGE = 0x77, - OP_INVOKE_INTERFACE_RANGE = 0x78, - - OP_UNUSED_79 = 0x79, - OP_UNUSED_7A = 0x7a, - - OP_NEG_INT = 0x7b, - OP_NOT_INT = 0x7c, - OP_NEG_LONG = 0x7d, - OP_NOT_LONG = 0x7e, - OP_NEG_FLOAT = 0x7f, - OP_NEG_DOUBLE = 0x80, - OP_INT_TO_LONG = 0x81, - OP_INT_TO_FLOAT = 0x82, - OP_INT_TO_DOUBLE = 0x83, - OP_LONG_TO_INT = 0x84, - OP_LONG_TO_FLOAT = 0x85, - OP_LONG_TO_DOUBLE = 0x86, - OP_FLOAT_TO_INT = 0x87, - OP_FLOAT_TO_LONG = 0x88, - OP_FLOAT_TO_DOUBLE = 0x89, - OP_DOUBLE_TO_INT = 0x8a, - OP_DOUBLE_TO_LONG = 0x8b, - OP_DOUBLE_TO_FLOAT = 0x8c, - OP_INT_TO_BYTE = 0x8d, - OP_INT_TO_CHAR = 0x8e, - OP_INT_TO_SHORT = 0x8f, - - OP_ADD_INT = 0x90, - OP_SUB_INT = 0x91, - OP_MUL_INT = 0x92, - OP_DIV_INT = 0x93, - OP_REM_INT = 0x94, - OP_AND_INT = 0x95, - OP_OR_INT = 0x96, - OP_XOR_INT = 0x97, - OP_SHL_INT = 0x98, - OP_SHR_INT = 0x99, - OP_USHR_INT = 0x9a, - - OP_ADD_LONG = 0x9b, - OP_SUB_LONG = 0x9c, - OP_MUL_LONG = 0x9d, - OP_DIV_LONG = 0x9e, - OP_REM_LONG = 0x9f, - OP_AND_LONG = 0xa0, - OP_OR_LONG = 0xa1, - OP_XOR_LONG = 0xa2, - OP_SHL_LONG = 0xa3, - OP_SHR_LONG = 0xa4, - OP_USHR_LONG = 0xa5, - - OP_ADD_FLOAT = 0xa6, - OP_SUB_FLOAT = 0xa7, - OP_MUL_FLOAT = 0xa8, - OP_DIV_FLOAT = 0xa9, - OP_REM_FLOAT = 0xaa, - OP_ADD_DOUBLE = 0xab, - OP_SUB_DOUBLE = 0xac, - OP_MUL_DOUBLE = 0xad, - OP_DIV_DOUBLE = 0xae, - OP_REM_DOUBLE = 0xaf, - - OP_ADD_INT_2ADDR = 0xb0, - OP_SUB_INT_2ADDR = 0xb1, - OP_MUL_INT_2ADDR = 0xb2, - OP_DIV_INT_2ADDR = 0xb3, - OP_REM_INT_2ADDR = 0xb4, - OP_AND_INT_2ADDR = 0xb5, - OP_OR_INT_2ADDR = 0xb6, - OP_XOR_INT_2ADDR = 0xb7, - OP_SHL_INT_2ADDR = 0xb8, - OP_SHR_INT_2ADDR = 0xb9, - OP_USHR_INT_2ADDR = 0xba, - - OP_ADD_LONG_2ADDR = 0xbb, - OP_SUB_LONG_2ADDR = 0xbc, - OP_MUL_LONG_2ADDR = 0xbd, - OP_DIV_LONG_2ADDR = 0xbe, - OP_REM_LONG_2ADDR = 0xbf, - OP_AND_LONG_2ADDR = 0xc0, - OP_OR_LONG_2ADDR = 0xc1, - OP_XOR_LONG_2ADDR = 0xc2, - OP_SHL_LONG_2ADDR = 0xc3, - OP_SHR_LONG_2ADDR = 0xc4, - OP_USHR_LONG_2ADDR = 0xc5, - - OP_ADD_FLOAT_2ADDR = 0xc6, - OP_SUB_FLOAT_2ADDR = 0xc7, - OP_MUL_FLOAT_2ADDR = 0xc8, - OP_DIV_FLOAT_2ADDR = 0xc9, - OP_REM_FLOAT_2ADDR = 0xca, - OP_ADD_DOUBLE_2ADDR = 0xcb, - OP_SUB_DOUBLE_2ADDR = 0xcc, - OP_MUL_DOUBLE_2ADDR = 0xcd, - OP_DIV_DOUBLE_2ADDR = 0xce, - OP_REM_DOUBLE_2ADDR = 0xcf, - - OP_ADD_INT_LIT16 = 0xd0, - OP_RSUB_INT = 0xd1, /* no _LIT16 suffix for this */ - OP_MUL_INT_LIT16 = 0xd2, - OP_DIV_INT_LIT16 = 0xd3, - OP_REM_INT_LIT16 = 0xd4, - OP_AND_INT_LIT16 = 0xd5, - OP_OR_INT_LIT16 = 0xd6, - OP_XOR_INT_LIT16 = 0xd7, - - OP_ADD_INT_LIT8 = 0xd8, - OP_RSUB_INT_LIT8 = 0xd9, - OP_MUL_INT_LIT8 = 0xda, - OP_DIV_INT_LIT8 = 0xdb, - OP_REM_INT_LIT8 = 0xdc, - OP_AND_INT_LIT8 = 0xdd, - OP_OR_INT_LIT8 = 0xde, - OP_XOR_INT_LIT8 = 0xdf, - OP_SHL_INT_LIT8 = 0xe0, - OP_SHR_INT_LIT8 = 0xe1, - OP_USHR_INT_LIT8 = 0xe2, - - OP_UNUSED_E3 = 0xe3, - OP_UNUSED_E4 = 0xe4, - OP_UNUSED_E5 = 0xe5, - OP_UNUSED_E6 = 0xe6, - OP_UNUSED_E7 = 0xe7, - OP_UNUSED_E8 = 0xe8, - OP_UNUSED_E9 = 0xe9, - OP_UNUSED_EA = 0xea, - OP_UNUSED_EB = 0xeb, - OP_UNUSED_EC = 0xec, - OP_UNUSED_ED = 0xed, - - /* optimizer output -- these are never generated by "dx" */ - OP_EXECUTE_INLINE = 0xee, - OP_UNUSED_EF = 0xef, /* OP_EXECUTE_INLINE_RANGE? */ - - OP_INVOKE_DIRECT_EMPTY = 0xf0, - OP_UNUSED_F1 = 0xf1, /* OP_INVOKE_DIRECT_EMPTY_RANGE? */ - OP_IGET_QUICK = 0xf2, - OP_IGET_WIDE_QUICK = 0xf3, - OP_IGET_OBJECT_QUICK = 0xf4, - OP_IPUT_QUICK = 0xf5, - OP_IPUT_WIDE_QUICK = 0xf6, - OP_IPUT_OBJECT_QUICK = 0xf7, - - OP_INVOKE_VIRTUAL_QUICK = 0xf8, - OP_INVOKE_VIRTUAL_QUICK_RANGE = 0xf9, - OP_INVOKE_SUPER_QUICK = 0xfa, - OP_INVOKE_SUPER_QUICK_RANGE = 0xfb, - OP_UNUSED_FC = 0xfc, /* OP_INVOKE_DIRECT_QUICK? */ - OP_UNUSED_FD = 0xfd, /* OP_INVOKE_DIRECT_QUICK_RANGE? */ - OP_UNUSED_FE = 0xfe, /* OP_INVOKE_INTERFACE_QUICK? */ - OP_UNUSED_FF = 0xff, /* OP_INVOKE_INTERFACE_QUICK_RANGE*/ -} OpCode; - -#define kNumDalvikInstructions 256 - -/* - * Switch-statement signatures are a "NOP" followed by a code. (A true NOP - * is 0x0000.) - */ -#define kPackedSwitchSignature 0x0100 -#define kSparseSwitchSignature 0x0200 -#define kArrayDataSignature 0x0300 - -/* - * Macro used to generate computed goto tables for the C interpreter. - * - * The labels here must match up with the labels in the interpreter - * implementation. There is no direct connection between these and the - * numeric definitions above, but if the two get out of sync strange things - * will happen. - */ -#define DEFINE_GOTO_TABLE(_name) \ - static const void* _name[kNumDalvikInstructions] = { \ - /* 00..0f */ \ - H(OP_NOP), \ - H(OP_MOVE), \ - H(OP_MOVE_FROM16), \ - H(OP_MOVE_16), \ - H(OP_MOVE_WIDE), \ - H(OP_MOVE_WIDE_FROM16), \ - H(OP_MOVE_WIDE_16), \ - H(OP_MOVE_OBJECT), \ - H(OP_MOVE_OBJECT_FROM16), \ - H(OP_MOVE_OBJECT_16), \ - H(OP_MOVE_RESULT), \ - H(OP_MOVE_RESULT_WIDE), \ - H(OP_MOVE_RESULT_OBJECT), \ - H(OP_MOVE_EXCEPTION), \ - H(OP_RETURN_VOID), \ - H(OP_RETURN), \ - /* 10..1f */ \ - H(OP_RETURN_WIDE), \ - H(OP_RETURN_OBJECT), \ - H(OP_CONST_4), \ - H(OP_CONST_16), \ - H(OP_CONST), \ - H(OP_CONST_HIGH16), \ - H(OP_CONST_WIDE_16), \ - H(OP_CONST_WIDE_32), \ - H(OP_CONST_WIDE), \ - H(OP_CONST_WIDE_HIGH16), \ - H(OP_CONST_STRING), \ - H(OP_CONST_STRING_JUMBO), \ - H(OP_CONST_CLASS), \ - H(OP_MONITOR_ENTER), \ - H(OP_MONITOR_EXIT), \ - H(OP_CHECK_CAST), \ - /* 20..2f */ \ - H(OP_INSTANCE_OF), \ - H(OP_ARRAY_LENGTH), \ - H(OP_NEW_INSTANCE), \ - H(OP_NEW_ARRAY), \ - H(OP_FILLED_NEW_ARRAY), \ - H(OP_FILLED_NEW_ARRAY_RANGE), \ - H(OP_FILL_ARRAY_DATA), \ - H(OP_THROW), \ - H(OP_GOTO), \ - H(OP_GOTO_16), \ - H(OP_GOTO_32), \ - H(OP_PACKED_SWITCH), \ - H(OP_SPARSE_SWITCH), \ - H(OP_CMPL_FLOAT), \ - H(OP_CMPG_FLOAT), \ - H(OP_CMPL_DOUBLE), \ - /* 30..3f */ \ - H(OP_CMPG_DOUBLE), \ - H(OP_CMP_LONG), \ - H(OP_IF_EQ), \ - H(OP_IF_NE), \ - H(OP_IF_LT), \ - H(OP_IF_GE), \ - H(OP_IF_GT), \ - H(OP_IF_LE), \ - H(OP_IF_EQZ), \ - H(OP_IF_NEZ), \ - H(OP_IF_LTZ), \ - H(OP_IF_GEZ), \ - H(OP_IF_GTZ), \ - H(OP_IF_LEZ), \ - H(OP_UNUSED_3E), \ - H(OP_UNUSED_3F), \ - /* 40..4f */ \ - H(OP_UNUSED_40), \ - H(OP_UNUSED_41), \ - H(OP_UNUSED_42), \ - H(OP_UNUSED_43), \ - H(OP_AGET), \ - H(OP_AGET_WIDE), \ - H(OP_AGET_OBJECT), \ - H(OP_AGET_BOOLEAN), \ - H(OP_AGET_BYTE), \ - H(OP_AGET_CHAR), \ - H(OP_AGET_SHORT), \ - H(OP_APUT), \ - H(OP_APUT_WIDE), \ - H(OP_APUT_OBJECT), \ - H(OP_APUT_BOOLEAN), \ - H(OP_APUT_BYTE), \ - /* 50..5f */ \ - H(OP_APUT_CHAR), \ - H(OP_APUT_SHORT), \ - H(OP_IGET), \ - H(OP_IGET_WIDE), \ - H(OP_IGET_OBJECT), \ - H(OP_IGET_BOOLEAN), \ - H(OP_IGET_BYTE), \ - H(OP_IGET_CHAR), \ - H(OP_IGET_SHORT), \ - H(OP_IPUT), \ - H(OP_IPUT_WIDE), \ - H(OP_IPUT_OBJECT), \ - H(OP_IPUT_BOOLEAN), \ - H(OP_IPUT_BYTE), \ - H(OP_IPUT_CHAR), \ - H(OP_IPUT_SHORT), \ - /* 60..6f */ \ - H(OP_SGET), \ - H(OP_SGET_WIDE), \ - H(OP_SGET_OBJECT), \ - H(OP_SGET_BOOLEAN), \ - H(OP_SGET_BYTE), \ - H(OP_SGET_CHAR), \ - H(OP_SGET_SHORT), \ - H(OP_SPUT), \ - H(OP_SPUT_WIDE), \ - H(OP_SPUT_OBJECT), \ - H(OP_SPUT_BOOLEAN), \ - H(OP_SPUT_BYTE), \ - H(OP_SPUT_CHAR), \ - H(OP_SPUT_SHORT), \ - H(OP_INVOKE_VIRTUAL), \ - H(OP_INVOKE_SUPER), \ - /* 70..7f */ \ - H(OP_INVOKE_DIRECT), \ - H(OP_INVOKE_STATIC), \ - H(OP_INVOKE_INTERFACE), \ - H(OP_UNUSED_73), \ - H(OP_INVOKE_VIRTUAL_RANGE), \ - H(OP_INVOKE_SUPER_RANGE), \ - H(OP_INVOKE_DIRECT_RANGE), \ - H(OP_INVOKE_STATIC_RANGE), \ - H(OP_INVOKE_INTERFACE_RANGE), \ - H(OP_UNUSED_79), \ - H(OP_UNUSED_7A), \ - H(OP_NEG_INT), \ - H(OP_NOT_INT), \ - H(OP_NEG_LONG), \ - H(OP_NOT_LONG), \ - H(OP_NEG_FLOAT), \ - /* 80..8f */ \ - H(OP_NEG_DOUBLE), \ - H(OP_INT_TO_LONG), \ - H(OP_INT_TO_FLOAT), \ - H(OP_INT_TO_DOUBLE), \ - H(OP_LONG_TO_INT), \ - H(OP_LONG_TO_FLOAT), \ - H(OP_LONG_TO_DOUBLE), \ - H(OP_FLOAT_TO_INT), \ - H(OP_FLOAT_TO_LONG), \ - H(OP_FLOAT_TO_DOUBLE), \ - H(OP_DOUBLE_TO_INT), \ - H(OP_DOUBLE_TO_LONG), \ - H(OP_DOUBLE_TO_FLOAT), \ - H(OP_INT_TO_BYTE), \ - H(OP_INT_TO_CHAR), \ - H(OP_INT_TO_SHORT), \ - /* 90..9f */ \ - H(OP_ADD_INT), \ - H(OP_SUB_INT), \ - H(OP_MUL_INT), \ - H(OP_DIV_INT), \ - H(OP_REM_INT), \ - H(OP_AND_INT), \ - H(OP_OR_INT), \ - H(OP_XOR_INT), \ - H(OP_SHL_INT), \ - H(OP_SHR_INT), \ - H(OP_USHR_INT), \ - H(OP_ADD_LONG), \ - H(OP_SUB_LONG), \ - H(OP_MUL_LONG), \ - H(OP_DIV_LONG), \ - H(OP_REM_LONG), \ - /* a0..af */ \ - H(OP_AND_LONG), \ - H(OP_OR_LONG), \ - H(OP_XOR_LONG), \ - H(OP_SHL_LONG), \ - H(OP_SHR_LONG), \ - H(OP_USHR_LONG), \ - H(OP_ADD_FLOAT), \ - H(OP_SUB_FLOAT), \ - H(OP_MUL_FLOAT), \ - H(OP_DIV_FLOAT), \ - H(OP_REM_FLOAT), \ - H(OP_ADD_DOUBLE), \ - H(OP_SUB_DOUBLE), \ - H(OP_MUL_DOUBLE), \ - H(OP_DIV_DOUBLE), \ - H(OP_REM_DOUBLE), \ - /* b0..bf */ \ - H(OP_ADD_INT_2ADDR), \ - H(OP_SUB_INT_2ADDR), \ - H(OP_MUL_INT_2ADDR), \ - H(OP_DIV_INT_2ADDR), \ - H(OP_REM_INT_2ADDR), \ - H(OP_AND_INT_2ADDR), \ - H(OP_OR_INT_2ADDR), \ - H(OP_XOR_INT_2ADDR), \ - H(OP_SHL_INT_2ADDR), \ - H(OP_SHR_INT_2ADDR), \ - H(OP_USHR_INT_2ADDR), \ - H(OP_ADD_LONG_2ADDR), \ - H(OP_SUB_LONG_2ADDR), \ - H(OP_MUL_LONG_2ADDR), \ - H(OP_DIV_LONG_2ADDR), \ - H(OP_REM_LONG_2ADDR), \ - /* c0..cf */ \ - H(OP_AND_LONG_2ADDR), \ - H(OP_OR_LONG_2ADDR), \ - H(OP_XOR_LONG_2ADDR), \ - H(OP_SHL_LONG_2ADDR), \ - H(OP_SHR_LONG_2ADDR), \ - H(OP_USHR_LONG_2ADDR), \ - H(OP_ADD_FLOAT_2ADDR), \ - H(OP_SUB_FLOAT_2ADDR), \ - H(OP_MUL_FLOAT_2ADDR), \ - H(OP_DIV_FLOAT_2ADDR), \ - H(OP_REM_FLOAT_2ADDR), \ - H(OP_ADD_DOUBLE_2ADDR), \ - H(OP_SUB_DOUBLE_2ADDR), \ - H(OP_MUL_DOUBLE_2ADDR), \ - H(OP_DIV_DOUBLE_2ADDR), \ - H(OP_REM_DOUBLE_2ADDR), \ - /* d0..df */ \ - H(OP_ADD_INT_LIT16), \ - H(OP_RSUB_INT), \ - H(OP_MUL_INT_LIT16), \ - H(OP_DIV_INT_LIT16), \ - H(OP_REM_INT_LIT16), \ - H(OP_AND_INT_LIT16), \ - H(OP_OR_INT_LIT16), \ - H(OP_XOR_INT_LIT16), \ - H(OP_ADD_INT_LIT8), \ - H(OP_RSUB_INT_LIT8), \ - H(OP_MUL_INT_LIT8), \ - H(OP_DIV_INT_LIT8), \ - H(OP_REM_INT_LIT8), \ - H(OP_AND_INT_LIT8), \ - H(OP_OR_INT_LIT8), \ - H(OP_XOR_INT_LIT8), \ - /* e0..ef */ \ - H(OP_SHL_INT_LIT8), \ - H(OP_SHR_INT_LIT8), \ - H(OP_USHR_INT_LIT8), \ - H(OP_UNUSED_E3), \ - H(OP_UNUSED_E4), \ - H(OP_UNUSED_E5), \ - H(OP_UNUSED_E6), \ - H(OP_UNUSED_E7), \ - H(OP_UNUSED_E8), \ - H(OP_UNUSED_E9), \ - H(OP_UNUSED_EA), \ - H(OP_UNUSED_EB), \ - H(OP_UNUSED_EC), \ - H(OP_UNUSED_ED), \ - H(OP_EXECUTE_INLINE), \ - H(OP_UNUSED_EF), \ - /* f0..ff */ \ - H(OP_INVOKE_DIRECT_EMPTY), \ - H(OP_UNUSED_F1), \ - H(OP_IGET_QUICK), \ - H(OP_IGET_WIDE_QUICK), \ - H(OP_IGET_OBJECT_QUICK), \ - H(OP_IPUT_QUICK), \ - H(OP_IPUT_WIDE_QUICK), \ - H(OP_IPUT_OBJECT_QUICK), \ - H(OP_INVOKE_VIRTUAL_QUICK), \ - H(OP_INVOKE_VIRTUAL_QUICK_RANGE), \ - H(OP_INVOKE_SUPER_QUICK), \ - H(OP_INVOKE_SUPER_QUICK_RANGE), \ - H(OP_UNUSED_FC), \ - H(OP_UNUSED_FD), \ - H(OP_UNUSED_FE), \ - H(OP_UNUSED_FF), \ - }; - -#endif /*_LIBDEX_OPCODE*/ diff --git a/libdex/OptInvocation.c b/libdex/OptInvocation.c deleted file mode 100644 index 8ce918b97..000000000 --- a/libdex/OptInvocation.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Utility functions for managing an invocation of "dexopt". - */ -#include "vm/DalvikVersion.h" - -#include <stdint.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/file.h> -#include <errno.h> - -#include "OptInvocation.h" -#include "DexFile.h" - -static const char* kClassesDex = "classes.dex"; - - -/* - * Given the filename of a .jar or .dex file, construct the DEX file cache - * name. - * - * For a Jar, "subFileName" is the name of the entry (usually "classes.dex"). - * For a DEX, it may be NULL. - * - * Returns a newly-allocated string, or NULL on failure. - */ -char* dexOptGenerateCacheFileName(const char* fileName, const char* subFileName) -{ - char nameBuf[512]; - static const char kDexCachePath[] = "dalvik-cache"; - char absoluteFile[sizeof(nameBuf)]; - const size_t kBufLen = sizeof(nameBuf) - 1; - const char* dataRoot; - char* cp; - - /* - * Get the absolute path of the Jar or DEX file. - */ - absoluteFile[0] = '\0'; - if (fileName[0] != '/') { - /* - * Generate the absolute path. This doesn't do everything it - * should, e.g. if filename is "./out/whatever" it doesn't crunch - * the leading "./" out, but it'll do. - */ - if (getcwd(absoluteFile, kBufLen) == NULL) { - LOGE("Can't get CWD while opening jar file\n"); - return NULL; - } - strncat(absoluteFile, "/", kBufLen); - } - strncat(absoluteFile, fileName, kBufLen); - - /* - * Append the name of the Jar file entry, if any. This is not currently - * required, but will be if we start putting more than one DEX file - * in a Jar. - */ - if (subFileName != NULL) { - strncat(absoluteFile, "/", kBufLen); - strncat(absoluteFile, subFileName, kBufLen); - } - - /* Turn the path into a flat filename by replacing - * any slashes after the first one with '@' characters. - */ - cp = absoluteFile + 1; - while (*cp != '\0') { - if (*cp == '/') { - *cp = '@'; - } - cp++; - } - - /* Build the name of the cache directory. - */ - dataRoot = getenv("ANDROID_DATA"); - if (dataRoot == NULL) - dataRoot = "/data"; - snprintf(nameBuf, kBufLen, "%s/%s", dataRoot, kDexCachePath); - - /* Tack on the file name for the actual cache file path. - */ - strncat(nameBuf, absoluteFile, kBufLen); - - LOGV("Cache file for '%s' '%s' is '%s'\n", fileName, subFileName, nameBuf); - return strdup(nameBuf); -} - -/* - * Create a skeletal "opt" header in a new file. Most of the fields are - * initialized to garbage, but we fill in "dexOffset" so others can - * see how large the header is. - * - * "fd" must be positioned at the start of the file. On return, it will - * be positioned just past the header, and the place where the DEX data - * should go. - * - * Returns 0 on success, errno on failure. - */ -int dexOptCreateEmptyHeader(int fd) -{ - DexOptHeader optHdr; - ssize_t actual; - - assert(lseek(fd, 0, SEEK_CUR) == 0); - - /* - * The data is only expected to be readable on the current system, so - * we just write the structure. We do need the file offset to be 64-bit - * aligned to fulfill a DEX requirement. - */ - assert((sizeof(optHdr) & 0x07) == 0); - memset(&optHdr, 0xff, sizeof(optHdr)); - optHdr.dexOffset = sizeof(optHdr); - actual = write(fd, &optHdr, sizeof(optHdr)); - if (actual != sizeof(optHdr)) { - int err = errno ? errno : -1; - LOGE("opt header write failed: %s", strerror(errno)); - return errno; - } - - return 0; -} - diff --git a/libdex/OptInvocation.h b/libdex/OptInvocation.h deleted file mode 100644 index d9708caed..000000000 --- a/libdex/OptInvocation.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Utility functions related to "dexopt". - */ -#ifndef _LIBDEX_OPTINVOCATION -#define _LIBDEX_OPTINVOCATION - -#include <stdint.h> -#include <unistd.h> - -#ifdef __cplusplus -extern "C" { -#endif - - -/* - * Utility routines, used by the VM. - */ -char* dexOptGenerateCacheFileName(const char* fileName, - const char* subFileName); -int dexOptCreateEmptyHeader(int fd); - -/* some flags that get passed through to "dexopt" command */ -#define DEXOPT_OPT_ENABLED (1) -#define DEXOPT_OPT_ALL (1 << 1) -#define DEXOPT_VERIFY_ENABLED (1 << 2) -#define DEXOPT_VERIFY_ALL (1 << 3) -#define DEXOPT_IS_BOOTSTRAP (1 << 4) -#define DEXOPT_GEN_REGISTER_MAP (1 << 5) - - -#ifdef __cplusplus -}; -#endif - -#endif /*_LIBDEX_OPTINVOCATION*/ diff --git a/libdex/SysUtil.c b/libdex/SysUtil.c deleted file mode 100644 index 530ac2eeb..000000000 --- a/libdex/SysUtil.c +++ /dev/null @@ -1,286 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * System utilities. - */ -#include "DexFile.h" -#include "SysUtil.h" - -#include <stdlib.h> -#include <stdio.h> -#include <unistd.h> -#include <string.h> - -#ifdef HAVE_POSIX_FILEMAP -#include <sys/mman.h> -#endif - -#include <limits.h> -#include <errno.h> - -/* - * Having trouble finding a portable way to get this. sysconf(_SC_PAGE_SIZE) - * seems appropriate, but we don't have that on the device. Some systems - * have getpagesize(2), though the linux man page has some odd cautions. - */ -#define DEFAULT_PAGE_SIZE 4096 - - -/* - * Create an anonymous shared memory segment large enough to hold "length" - * bytes. The actual segment may be larger because mmap() operates on - * page boundaries (usually 4K). - */ -static void* sysCreateAnonShmem(size_t length) -{ -#ifdef HAVE_POSIX_FILEMAP - void* ptr; - - ptr = mmap(NULL, length, PROT_READ | PROT_WRITE, - MAP_SHARED | MAP_ANON, -1, 0); - if (ptr == MAP_FAILED) { - LOGW("mmap(%d, RW, SHARED|ANON) failed: %s\n", (int) length, - strerror(errno)); - return NULL; - } - - return ptr; -#else - LOGE("sysCreateAnonShmem not implemented.\n"); - return NULL; -#endif -} - -static int getFileStartAndLength(int fd, off_t *start_, size_t *length_) -{ - off_t start, end; - size_t length; - - assert(start_ != NULL); - assert(length_ != NULL); - - start = lseek(fd, 0L, SEEK_CUR); - end = lseek(fd, 0L, SEEK_END); - (void) lseek(fd, start, SEEK_SET); - - if (start == (off_t) -1 || end == (off_t) -1) { - LOGE("could not determine length of file\n"); - return -1; - } - - length = end - start; - if (length == 0) { - LOGE("file is empty\n"); - return -1; - } - - *start_ = start; - *length_ = length; - - return 0; -} - -/* - * Pull the contents of a file into an new shared memory segment. We grab - * everything from fd's current offset on. - * - * We need to know the length ahead of time so we can allocate a segment - * of sufficient size. - */ -int sysLoadFileInShmem(int fd, MemMapping* pMap) -{ -#ifdef HAVE_POSIX_FILEMAP - off_t start; - size_t length, actual; - void* memPtr; - - assert(pMap != NULL); - - if (getFileStartAndLength(fd, &start, &length) < 0) - return -1; - - memPtr = sysCreateAnonShmem(length); - if (memPtr == NULL) - return -1; - - actual = read(fd, memPtr, length); - if (actual != length) { - LOGE("only read %d of %d bytes\n", (int) actual, (int) length); - sysReleaseShmem(pMap); - return -1; - } - - pMap->baseAddr = pMap->addr = memPtr; - pMap->baseLength = pMap->length = length; - - return 0; -#else - LOGE("sysLoadFileInShmem not implemented.\n"); - return -1; -#endif -} - -/* - * Map a file (from fd's current offset) into a shared, read-only memory - * segment. The file offset must be a multiple of the page size. - * - * On success, returns 0 and fills out "pMap". On failure, returns a nonzero - * value and does not disturb "pMap". - */ -int sysMapFileInShmem(int fd, MemMapping* pMap) -{ -#ifdef HAVE_POSIX_FILEMAP - off_t start; - size_t length; - void* memPtr; - - assert(pMap != NULL); - - if (getFileStartAndLength(fd, &start, &length) < 0) - return -1; - - memPtr = mmap(NULL, length, PROT_READ, MAP_FILE | MAP_SHARED, fd, start); - if (memPtr == MAP_FAILED) { - LOGW("mmap(%d, R, FILE|SHARED, %d, %d) failed: %s\n", (int) length, - fd, (int) start, strerror(errno)); - return -1; - } - - pMap->baseAddr = pMap->addr = memPtr; - pMap->baseLength = pMap->length = length; - - return 0; -#else - /* No MMAP, just fake it by copying the bits. - For Win32 we could use MapViewOfFile if really necessary - (see libs/utils/FileMap.cpp). - */ - off_t start; - size_t length; - void* memPtr; - - assert(pMap != NULL); - - if (getFileStartAndLength(fd, &start, &length) < 0) - return -1; - - memPtr = malloc(length); - if (read(fd, memPtr, length) < 0) { - LOGW("read(fd=%d, start=%d, length=%d) failed: %s\n", (int) length, - fd, (int) start, strerror(errno)); - return -1; - } - - pMap->baseAddr = pMap->addr = memPtr; - pMap->baseLength = pMap->length = length; - - return 0; -#endif -} - -/* - * Map part of a file (from fd's current offset) into a shared, read-only - * memory segment. - * - * On success, returns 0 and fills out "pMap". On failure, returns a nonzero - * value and does not disturb "pMap". - */ -int sysMapFileSegmentInShmem(int fd, off_t start, long length, - MemMapping* pMap) -{ -#ifdef HAVE_POSIX_FILEMAP - off_t dummy; - size_t fileLength, actualLength; - off_t actualStart; - int adjust; - void* memPtr; - - assert(pMap != NULL); - - if (getFileStartAndLength(fd, &dummy, &fileLength) < 0) - return -1; - - if (start + length > (long)fileLength) { - LOGW("bad segment: st=%d len=%ld flen=%d\n", - (int) start, length, (int) fileLength); - return -1; - } - - /* adjust to be page-aligned */ - adjust = start % DEFAULT_PAGE_SIZE; - actualStart = start - adjust; - actualLength = length + adjust; - - memPtr = mmap(NULL, actualLength, PROT_READ, MAP_FILE | MAP_SHARED, - fd, actualStart); - if (memPtr == MAP_FAILED) { - LOGW("mmap(%d, R, FILE|SHARED, %d, %d) failed: %s\n", - (int) actualLength, fd, (int) actualStart, strerror(errno)); - return -1; - } - - pMap->baseAddr = memPtr; - pMap->baseLength = actualLength; - pMap->addr = (char*)memPtr + adjust; - pMap->length = length; - - LOGVV("mmap seg (st=%d ln=%d): bp=%p bl=%d ad=%p ln=%d\n", - (int) start, (int) length, - pMap->baseAddr, (int) pMap->baseLength, - pMap->addr, (int) pMap->length); - - return 0; -#else - LOGE("sysMapFileSegmentInShmem not implemented.\n"); - return -1; -#endif -} - -/* - * Release a memory mapping. - */ -void sysReleaseShmem(MemMapping* pMap) -{ -#ifdef HAVE_POSIX_FILEMAP - if (pMap->baseAddr == NULL && pMap->baseLength == 0) - return; - - if (munmap(pMap->baseAddr, pMap->baseLength) < 0) { - LOGW("munmap(%p, %d) failed: %s\n", - pMap->baseAddr, (int)pMap->baseLength, strerror(errno)); - } else { - LOGV("munmap(%p, %d) succeeded\n", pMap->baseAddr, pMap->baseLength); - pMap->baseAddr = NULL; - pMap->baseLength = 0; - } -#else - /* Free the bits allocated by sysMapFileInShmem. */ - if (pMap->baseAddr != NULL) { - free(pMap->baseAddr); - pMap->baseAddr = NULL; - } - pMap->baseLength = 0; -#endif -} - -/* - * Make a copy of a MemMapping. - */ -void sysCopyMap(MemMapping* dst, const MemMapping* src) -{ - memcpy(dst, src, sizeof(MemMapping)); -} - diff --git a/libdex/SysUtil.h b/libdex/SysUtil.h deleted file mode 100644 index 8d85efa8a..000000000 --- a/libdex/SysUtil.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * System utilities. - */ -#ifndef _LIBDEX_SYSUTIL -#define _LIBDEX_SYSUTIL - -#include <sys/types.h> - -/* - * Use this to keep track of mapped segments. - */ -typedef struct MemMapping { - void* addr; /* start of data */ - size_t length; /* length of data */ - - void* baseAddr; /* page-aligned base address */ - size_t baseLength; /* length of mapping */ -} MemMapping; - -/* - * Copy a map. - */ -void sysCopyMap(MemMapping* dst, const MemMapping* src); - -/* - * Load a file into a new shared memory segment. All data from the current - * offset to the end of the file is pulled in. - * - * The segment is read-write, allowing VM fixups. (It should be modified - * to support .gz/.zip compressed data.) - * - * On success, "pMap" is filled in, and zero is returned. - */ -int sysLoadFileInShmem(int fd, MemMapping* pMap); - -/* - * Map a file (from fd's current offset) into a shared, - * read-only memory segment. - * - * On success, "pMap" is filled in, and zero is returned. - */ -int sysMapFileInShmem(int fd, MemMapping* pMap); - -/* - * Like sysMapFileInShmem, but on only part of a file. - */ -int sysMapFileSegmentInShmem(int fd, off_t start, long length, - MemMapping* pMap); - -/* - * Release the pages associated with a shared memory segment. - * - * This does not free "pMap"; it just releases the memory. - */ -void sysReleaseShmem(MemMapping* pMap); - -#endif /*_DALVIK_SYSUTIL*/ diff --git a/libdex/ZipArchive.c b/libdex/ZipArchive.c deleted file mode 100644 index a75a85b84..000000000 --- a/libdex/ZipArchive.c +++ /dev/null @@ -1,643 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Read-only access to Zip archives, with minimal heap allocation. - */ -#include "ZipArchive.h" - -#include <zlib.h> - -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <errno.h> - - -/* - * Zip file constants. - */ -#define kEOCDSignature 0x06054b50 -#define kEOCDLen 22 -#define kEOCDNumEntries 8 // offset to #of entries in file -#define kEOCDFileOffset 16 // offset to central directory - -#define kMaxCommentLen 65535 // longest possible in ushort -#define kMaxEOCDSearch (kMaxCommentLen + kEOCDLen) - -#define kLFHSignature 0x04034b50 -#define kLFHLen 30 // excluding variable-len fields -#define kLFHNameLen 26 // offset to filename length -#define kLFHExtraLen 28 // offset to extra length - -#define kCDESignature 0x02014b50 -#define kCDELen 46 // excluding variable-len fields -#define kCDEMethod 10 // offset to compression method -#define kCDEModWhen 12 // offset to modification timestamp -#define kCDECRC 16 // offset to entry CRC -#define kCDECompLen 20 // offset to compressed length -#define kCDEUncompLen 24 // offset to uncompressed length -#define kCDENameLen 28 // offset to filename length -#define kCDEExtraLen 30 // offset to extra length -#define kCDECommentLen 32 // offset to comment length -#define kCDELocalOffset 42 // offset to local hdr - -/* - * The values we return for ZipEntry use 0 as an invalid value, so we - * want to adjust the hash table index by a fixed amount. Using a large - * value helps insure that people don't mix & match arguments, e.g. with - * entry indices. - */ -#define kZipEntryAdj 10000 - -/* - * Convert a ZipEntry to a hash table index, verifying that it's in a - * valid range. - */ -static int entryToIndex(const ZipArchive* pArchive, const ZipEntry entry) -{ - long ent = ((long) entry) - kZipEntryAdj; - if (ent < 0 || ent >= pArchive->mHashTableSize || - pArchive->mHashTable[ent].name == NULL) - { - LOGW("Invalid ZipEntry %p (%ld)\n", entry, ent); - return -1; - } - return ent; -} - -/* - * Simple string hash function for non-null-terminated strings. - */ -static unsigned int computeHash(const char* str, int len) -{ - unsigned int hash = 0; - - while (len--) - hash = hash * 31 + *str++; - - return hash; -} - -/* - * Add a new entry to the hash table. - */ -static void addToHash(ZipArchive* pArchive, const char* str, int strLen, - unsigned int hash) -{ - const int hashTableSize = pArchive->mHashTableSize; - int ent = hash & (hashTableSize - 1); - - /* - * We over-allocated the table, so we're guaranteed to find an empty slot. - */ - while (pArchive->mHashTable[ent].name != NULL) - ent = (ent + 1) & (hashTableSize-1); - - pArchive->mHashTable[ent].name = str; - pArchive->mHashTable[ent].nameLen = strLen; -} - -/* - * Get 2 little-endian bytes. - */ -static u2 get2LE(unsigned char const* pSrc) -{ - return pSrc[0] | (pSrc[1] << 8); -} - -/* - * Get 4 little-endian bytes. - */ -static u4 get4LE(unsigned char const* pSrc) -{ - u4 result; - - result = pSrc[0]; - result |= pSrc[1] << 8; - result |= pSrc[2] << 16; - result |= pSrc[3] << 24; - - return result; -} - -/* - * Parse the Zip archive, verifying its contents and initializing internal - * data structures. - */ -static bool parseZipArchive(ZipArchive* pArchive, const MemMapping* pMap) -{ -#define CHECK_OFFSET(_off) { \ - if ((unsigned int) (_off) >= maxOffset) { \ - LOGE("ERROR: bad offset %u (max %d): %s\n", \ - (unsigned int) (_off), maxOffset, #_off); \ - goto bail; \ - } \ - } - bool result = false; - const unsigned char* basePtr = (const unsigned char*)pMap->addr; - const unsigned char* ptr; - size_t length = pMap->length; - unsigned int i, numEntries, cdOffset; - unsigned int val; - - /* - * The first 4 bytes of the file will either be the local header - * signature for the first file (kLFHSignature) or, if the archive doesn't - * have any files in it, the end-of-central-directory signature - * (kEOCDSignature). - */ - val = get4LE(basePtr); - if (val == kEOCDSignature) { - LOGI("Found Zip archive, but it looks empty\n"); - goto bail; - } else if (val != kLFHSignature) { - LOGV("Not a Zip archive (found 0x%08x)\n", val); - goto bail; - } - - /* - * Find the EOCD. We'll find it immediately unless they have a file - * comment. - */ - ptr = basePtr + length - kEOCDLen; - - while (ptr >= basePtr) { - if (*ptr == (kEOCDSignature & 0xff) && get4LE(ptr) == kEOCDSignature) - break; - ptr--; - } - if (ptr < basePtr) { - LOGI("Could not find end-of-central-directory in Zip\n"); - goto bail; - } - - /* - * There are two interesting items in the EOCD block: the number of - * entries in the file, and the file offset of the start of the - * central directory. - * - * (There's actually a count of the #of entries in this file, and for - * all files which comprise a spanned archive, but for our purposes - * we're only interested in the current file. Besides, we expect the - * two to be equivalent for our stuff.) - */ - numEntries = get2LE(ptr + kEOCDNumEntries); - cdOffset = get4LE(ptr + kEOCDFileOffset); - - /* valid offsets are [0,EOCD] */ - unsigned int maxOffset; - maxOffset = (ptr - basePtr) +1; - - LOGV("+++ numEntries=%d cdOffset=%d\n", numEntries, cdOffset); - if (numEntries == 0 || cdOffset >= length) { - LOGW("Invalid entries=%d offset=%d (len=%zd)\n", - numEntries, cdOffset, length); - goto bail; - } - - /* - * Create hash table. We have a minimum 75% load factor, possibly as - * low as 50% after we round off to a power of 2. There must be at - * least one unused entry to avoid an infinite loop during creation. - */ - pArchive->mNumEntries = numEntries; - pArchive->mHashTableSize = dexRoundUpPower2(1 + (numEntries * 4) / 3); - pArchive->mHashTable = (ZipHashEntry*) - calloc(pArchive->mHashTableSize, sizeof(ZipHashEntry)); - - /* - * Walk through the central directory, adding entries to the hash - * table. - */ - ptr = basePtr + cdOffset; - for (i = 0; i < numEntries; i++) { - unsigned int fileNameLen, extraLen, commentLen, localHdrOffset; - const unsigned char* localHdr; - unsigned int hash; - - if (get4LE(ptr) != kCDESignature) { - LOGW("Missed a central dir sig (at %d)\n", i); - goto bail; - } - if (ptr + kCDELen > basePtr + length) { - LOGW("Ran off the end (at %d)\n", i); - goto bail; - } - - localHdrOffset = get4LE(ptr + kCDELocalOffset); - CHECK_OFFSET(localHdrOffset); - fileNameLen = get2LE(ptr + kCDENameLen); - extraLen = get2LE(ptr + kCDEExtraLen); - commentLen = get2LE(ptr + kCDECommentLen); - - //LOGV("+++ %d: localHdr=%d fnl=%d el=%d cl=%d\n", - // i, localHdrOffset, fileNameLen, extraLen, commentLen); - //LOGV(" '%.*s'\n", fileNameLen, ptr + kCDELen); - - /* add the CDE filename to the hash table */ - hash = computeHash((const char*)ptr + kCDELen, fileNameLen); - addToHash(pArchive, (const char*)ptr + kCDELen, fileNameLen, hash); - - localHdr = basePtr + localHdrOffset; - if (get4LE(localHdr) != kLFHSignature) { - LOGW("Bad offset to local header: %d (at %d)\n", - localHdrOffset, i); - goto bail; - } - - ptr += kCDELen + fileNameLen + extraLen + commentLen; - CHECK_OFFSET(ptr - basePtr); - } - - result = true; - -bail: - return result; -#undef CHECK_OFFSET -} - -/* - * Open the specified file read-only. We memory-map the entire thing and - * parse the contents. - * - * This will be called on non-Zip files, especially during VM startup, so - * we don't want to be too noisy about certain types of failure. (Do - * we want a "quiet" flag?) - * - * On success, we fill out the contents of "pArchive" and return 0. - */ -int dexZipOpenArchive(const char* fileName, ZipArchive* pArchive) -{ - int fd, err; - - LOGV("Opening archive '%s' %p\n", fileName, pArchive); - - fd = open(fileName, O_RDONLY, 0); - if (fd < 0) { - err = errno ? errno : -1; - LOGV("Unable to open '%s': %s\n", fileName, strerror(err)); - return err; - } - - return dexZipPrepArchive(fd, fileName, pArchive); -} - -/* - * Prepare to access a ZipArchive in an open file descriptor. - */ -int dexZipPrepArchive(int fd, const char* debugFileName, ZipArchive* pArchive) -{ - MemMapping map; - int err; - - map.addr = NULL; - memset(pArchive, 0, sizeof(*pArchive)); - - pArchive->mFd = fd; - - if (sysMapFileInShmem(pArchive->mFd, &map) != 0) { - err = -1; - LOGW("Map of '%s' failed\n", debugFileName); - goto bail; - } - - if (map.length < kEOCDLen) { - err = -1; - LOGV("File '%s' too small to be zip (%zd)\n", debugFileName,map.length); - goto bail; - } - - if (!parseZipArchive(pArchive, &map)) { - err = -1; - LOGV("Parsing '%s' failed\n", debugFileName); - goto bail; - } - - /* success */ - err = 0; - sysCopyMap(&pArchive->mMap, &map); - map.addr = NULL; - -bail: - if (err != 0) - dexZipCloseArchive(pArchive); - if (map.addr != NULL) - sysReleaseShmem(&map); - return err; -} - - -/* - * Close a ZipArchive, closing the file and freeing the contents. - * - * NOTE: the ZipArchive may not have been fully created. - */ -void dexZipCloseArchive(ZipArchive* pArchive) -{ - LOGV("Closing archive %p\n", pArchive); - - if (pArchive->mFd >= 0) - close(pArchive->mFd); - - sysReleaseShmem(&pArchive->mMap); - - free(pArchive->mHashTable); - - pArchive->mFd = -1; - pArchive->mNumEntries = -1; - pArchive->mHashTableSize = -1; - pArchive->mHashTable = NULL; -} - - -/* - * Find a matching entry. - * - * Returns 0 if not found. - */ -ZipEntry dexZipFindEntry(const ZipArchive* pArchive, const char* entryName) -{ - int nameLen = strlen(entryName); - unsigned int hash = computeHash(entryName, nameLen); - const int hashTableSize = pArchive->mHashTableSize; - int ent = hash & (hashTableSize-1); - - while (pArchive->mHashTable[ent].name != NULL) { - if (pArchive->mHashTable[ent].nameLen == nameLen && - memcmp(pArchive->mHashTable[ent].name, entryName, nameLen) == 0) - { - /* match */ - return (ZipEntry) (ent + kZipEntryAdj); - } - - ent = (ent + 1) & (hashTableSize-1); - } - - return NULL; -} - -#if 0 -/* - * Find the Nth entry. - * - * This currently involves walking through the sparse hash table, counting - * non-empty entries. If we need to speed this up we can either allocate - * a parallel lookup table or (perhaps better) provide an iterator interface. - */ -ZipEntry findEntryByIndex(ZipArchive* pArchive, int idx) -{ - if (idx < 0 || idx >= pArchive->mNumEntries) { - LOGW("Invalid index %d\n", idx); - return NULL; - } - - int ent; - for (ent = 0; ent < pArchive->mHashTableSize; ent++) { - if (pArchive->mHashTable[ent].name != NULL) { - if (idx-- == 0) - return (ZipEntry) (ent + kZipEntryAdj); - } - } - - return NULL; -} -#endif - -/* - * Get the useful fields from the zip entry. - * - * Returns "false" if the offsets to the fields or the contents of the fields - * appear to be bogus. - */ -bool dexZipGetEntryInfo(const ZipArchive* pArchive, ZipEntry entry, - int* pMethod, long* pUncompLen, long* pCompLen, off_t* pOffset, - long* pModWhen, long* pCrc32) -{ - int ent = entryToIndex(pArchive, entry); - if (ent < 0) - return false; - - /* - * Recover the start of the central directory entry from the filename - * pointer. - */ - const unsigned char* basePtr = (const unsigned char*) - pArchive->mMap.addr; - const unsigned char* ptr = (const unsigned char*) - pArchive->mHashTable[ent].name; - size_t zipLength = - pArchive->mMap.length; - - ptr -= kCDELen; - - int method = get2LE(ptr + kCDEMethod); - if (pMethod != NULL) - *pMethod = method; - - if (pModWhen != NULL) - *pModWhen = get4LE(ptr + kCDEModWhen); - if (pCrc32 != NULL) - *pCrc32 = get4LE(ptr + kCDECRC); - - /* - * We need to make sure that the lengths are not so large that somebody - * trying to map the compressed or uncompressed data runs off the end - * of the mapped region. - */ - unsigned long localHdrOffset = get4LE(ptr + kCDELocalOffset); - if (localHdrOffset + kLFHLen >= zipLength) { - LOGE("ERROR: bad local hdr offset in zip\n"); - return false; - } - const unsigned char* localHdr = basePtr + localHdrOffset; - off_t dataOffset = localHdrOffset + kLFHLen - + get2LE(localHdr + kLFHNameLen) + get2LE(localHdr + kLFHExtraLen); - if ((unsigned long) dataOffset >= zipLength) { - LOGE("ERROR: bad data offset in zip\n"); - return false; - } - - if (pCompLen != NULL) { - *pCompLen = get4LE(ptr + kCDECompLen); - if (*pCompLen < 0 || (size_t)(dataOffset + *pCompLen) >= zipLength) { - LOGE("ERROR: bad compressed length in zip\n"); - return false; - } - } - if (pUncompLen != NULL) { - *pUncompLen = get4LE(ptr + kCDEUncompLen); - if (*pUncompLen < 0) { - LOGE("ERROR: negative uncompressed length in zip\n"); - return false; - } - if (method == kCompressStored && - (size_t)(dataOffset + *pUncompLen) >= zipLength) - { - LOGE("ERROR: bad uncompressed length in zip\n"); - return false; - } - } - - if (pOffset != NULL) { - *pOffset = dataOffset; - } - return true; -} - -/* - * Uncompress "deflate" data from one buffer to an open file descriptor. - */ -static bool inflateToFile(int fd, const void* inBuf, long uncompLen, - long compLen) -{ - bool result = false; - const int kWriteBufSize = 32768; - unsigned char writeBuf[kWriteBufSize]; - z_stream zstream; - int zerr; - - /* - * Initialize the zlib stream struct. - */ - memset(&zstream, 0, sizeof(zstream)); - zstream.zalloc = Z_NULL; - zstream.zfree = Z_NULL; - zstream.opaque = Z_NULL; - zstream.next_in = (Bytef*)inBuf; - zstream.avail_in = compLen; - zstream.next_out = (Bytef*) writeBuf; - zstream.avail_out = sizeof(writeBuf); - zstream.data_type = Z_UNKNOWN; - - /* - * Use the undocumented "negative window bits" feature to tell zlib - * that there's no zlib header waiting for it. - */ - zerr = inflateInit2(&zstream, -MAX_WBITS); - if (zerr != Z_OK) { - if (zerr == Z_VERSION_ERROR) { - LOGE("Installed zlib is not compatible with linked version (%s)\n", - ZLIB_VERSION); - } else { - LOGE("Call to inflateInit2 failed (zerr=%d)\n", zerr); - } - goto bail; - } - - /* - * Loop while we have more to do. - */ - do { - /* - * Expand data. - */ - zerr = inflate(&zstream, Z_NO_FLUSH); - if (zerr != Z_OK && zerr != Z_STREAM_END) { - LOGW("zlib inflate: zerr=%d (nIn=%p aIn=%u nOut=%p aOut=%u)\n", - zerr, zstream.next_in, zstream.avail_in, - zstream.next_out, zstream.avail_out); - goto z_bail; - } - - /* write when we're full or when we're done */ - if (zstream.avail_out == 0 || - (zerr == Z_STREAM_END && zstream.avail_out != sizeof(writeBuf))) - { - long writeSize = zstream.next_out - writeBuf; - int cc = write(fd, writeBuf, writeSize); - if (cc != (int) writeSize) { - if (cc < 0) { - LOGW("write failed in inflate: %s\n", strerror(errno)); - } else { - LOGW("partial write in inflate (%d vs %ld)\n", - cc, writeSize); - } - goto z_bail; - } - - zstream.next_out = writeBuf; - zstream.avail_out = sizeof(writeBuf); - } - } while (zerr == Z_OK); - - assert(zerr == Z_STREAM_END); /* other errors should've been caught */ - - /* paranoia */ - if ((long) zstream.total_out != uncompLen) { - LOGW("Size mismatch on inflated file (%ld vs %ld)\n", - zstream.total_out, uncompLen); - goto z_bail; - } - - result = true; - -z_bail: - inflateEnd(&zstream); /* free up any allocated structures */ - -bail: - return result; -} - -/* - * Uncompress an entry, in its entirety, to an open file descriptor. - * - * TODO: this doesn't verify the data's CRC, but probably should (especially - * for uncompressed data). - */ -bool dexZipExtractEntryToFile(const ZipArchive* pArchive, - const ZipEntry entry, int fd) -{ - bool result = false; - int ent = entryToIndex(pArchive, entry); - if (ent < 0) - return -1; - - const unsigned char* basePtr = (const unsigned char*)pArchive->mMap.addr; - int method; - long uncompLen, compLen; - off_t offset; - - if (!dexZipGetEntryInfo(pArchive, entry, &method, &uncompLen, &compLen, - &offset, NULL, NULL)) - { - goto bail; - } - - if (method == kCompressStored) { - ssize_t actual; - - actual = write(fd, basePtr + offset, uncompLen); - if (actual < 0) { - LOGE("Write failed: %s\n", strerror(errno)); - goto bail; - } else if (actual != uncompLen) { - LOGE("Partial write during uncompress (%d of %ld)\n", - (int) actual, uncompLen); - goto bail; - } else { - LOGI("+++ successful write\n"); - } - } else { - if (!inflateToFile(fd, basePtr+offset, uncompLen, compLen)) - goto bail; - } - - result = true; - -bail: - return result; -} - diff --git a/libdex/ZipArchive.h b/libdex/ZipArchive.h deleted file mode 100644 index 0cd98b221..000000000 --- a/libdex/ZipArchive.h +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Read-only access to Zip archives, with minimal heap allocation. - */ -#ifndef _LIBDEX_ZIPARCHIVE -#define _LIBDEX_ZIPARCHIVE - -#include "SysUtil.h" -#include "DexFile.h" // need DEX_INLINE - - -/* - * Trivial typedef to ensure that ZipEntry is not treated as a simple - * integer. We use NULL to indicate an invalid value. - */ -typedef void* ZipEntry; - -/* - * One entry in the hash table. - */ -typedef struct ZipHashEntry { - const char* name; - unsigned short nameLen; - //unsigned int hash; -} ZipHashEntry; - -/* - * Read-only Zip archive. - * - * We want "open" and "find entry by name" to be fast operations, and we - * want to use as little memory as possible. We memory-map the file, - * and load a hash table with pointers to the filenames (which aren't - * null-terminated). The other fields are at a fixed offset from the - * filename, so we don't need to extract those (but we do need to byte-read - * and endian-swap them every time we want them). - * - * To speed comparisons when doing a lookup by name, we could make the mapping - * "private" (copy-on-write) and null-terminate the filenames after verifying - * the record structure. However, this requires a private mapping of - * every page that the Central Directory touches. Easier to tuck a copy - * of the string length into the hash table entry. - */ -typedef struct ZipArchive { - /* open Zip archive */ - int mFd; - - /* mapped file */ - MemMapping mMap; - - /* number of entries in the Zip archive */ - int mNumEntries; - - /* - * We know how many entries are in the Zip archive, so we can have a - * fixed-size hash table. We probe on collisions. - */ - int mHashTableSize; - ZipHashEntry* mHashTable; -} ZipArchive; - -/* Zip compression methods we support */ -enum { - kCompressStored = 0, // no compression - kCompressDeflated = 8, // standard deflate -}; - - -/* - * Open a Zip archive. - * - * On success, returns 0 and populates "pArchive". Returns nonzero errno - * value on failure. - */ -int dexZipOpenArchive(const char* fileName, ZipArchive* pArchive); - -/* - * Like dexZipOpenArchive, but takes a file descriptor open for reading - * at the start of the file. The descriptor must be mappable (this does - * not allow access to a stream). - * - * "debugFileName" will appear in error messages, but is not otherwise used. - */ -int dexZipPrepArchive(int fd, const char* debugFileName, ZipArchive* pArchive); - -/* - * Close archive, releasing resources associated with it. - * - * Depending on the implementation this could unmap pages used by classes - * stored in a Jar. This should only be done after unloading classes. - */ -void dexZipCloseArchive(ZipArchive* pArchive); - -/* - * Return the archive's file descriptor. - */ -DEX_INLINE int dexZipGetArchiveFd(const ZipArchive* pArchive) { - return pArchive->mFd; -} - -/* - * Find an entry in the Zip archive, by name. Returns NULL if the entry - * was not found. - */ -ZipEntry dexZipFindEntry(const ZipArchive* pArchive, - const char* entryName); - -/* - * Retrieve one or more of the "interesting" fields. Non-NULL pointers - * are filled in. - */ -bool dexZipGetEntryInfo(const ZipArchive* pArchive, ZipEntry entry, - int* pMethod, long* pUncompLen, long* pCompLen, off_t* pOffset, - long* pModWhen, long* pCrc32); - -/* - * Simple accessors. - */ -DEX_INLINE long dexGetZipEntryOffset(const ZipArchive* pArchive, - const ZipEntry entry) -{ - off_t val = 0; - dexZipGetEntryInfo(pArchive, entry, NULL, NULL, NULL, &val, NULL, NULL); - return (long) val; -} -DEX_INLINE long dexGetZipEntryUncompLen(const ZipArchive* pArchive, - const ZipEntry entry) -{ - long val = 0; - dexZipGetEntryInfo(pArchive, entry, NULL, &val, NULL, NULL, NULL, NULL); - return val; -} -DEX_INLINE long dexGetZipEntryModTime(const ZipArchive* pArchive, - const ZipEntry entry) -{ - long val = 0; - dexZipGetEntryInfo(pArchive, entry, NULL, NULL, NULL, NULL, &val, NULL); - return val; -} -DEX_INLINE long dexGetZipEntryCrc32(const ZipArchive* pArchive, - const ZipEntry entry) -{ - long val = 0; - dexZipGetEntryInfo(pArchive, entry, NULL, NULL, NULL, NULL, NULL, &val); - return val; -} - -/* - * Uncompress and write an entry to a file descriptor. - */ -bool dexZipExtractEntryToFile(const ZipArchive* pArchive, - const ZipEntry entry, int fd); - -/* - * Utility function to compute a CRC-32. - */ -u4 dexInitCrc32(void); -u4 dexComputeCrc32(u4 crc, const void* buf, size_t len); - -#endif /*_LIBDEX_ZIPARCHIVE*/ diff --git a/libdex/sha1.c b/libdex/sha1.c deleted file mode 100644 index 62892488a..000000000 --- a/libdex/sha1.c +++ /dev/null @@ -1,514 +0,0 @@ -/* - * Tweaked in various ways for Google/Android: - * - Changed from .cpp to .c. - * - Made argument to SHA1Update a const pointer, and enabled - * SHA1HANDSOFF. This incurs a speed penalty but prevents us from - * trashing the input. - * - Include <endian.h> to get endian info. - * - Split a small piece into a header file. - */ - -/* -sha1sum: inspired by md5sum. - -SHA-1 in C -By Steve Reid <steve@edmweb.com> -100% Public Domain - ------------------ -Modified 7/98 -By James H. Brown <jbrown@burgoyne.com> -Still 100% Public Domain - -bit machines -Routine SHA1Update changed from - void SHA1Update(SHA1_CTX* context, unsigned char* data, - unsigned int len) -to - void SHA1Update(SHA1_CTX* context, unsigned char* data, - unsigned long len) - -The 'len' parameter was declared an int which works fine on 32 -bit machines. However, on 16 bit machines an int is too small -for the shifts being done against it. This caused the hash -function to generate incorrect values if len was greater than -8191 (8K - 1) due to the 'len << 3' on line 3 of SHA1Update(). - -Since the file IO in main() reads 16K at a time, any file 8K or -larger would be guaranteed to generate the wrong hash (e.g. -Test Vector #3, a million "a"s). - -I also changed the declaration of variables i & j in SHA1Update -to unsigned long from unsigned int for the same reason. - -These changes should make no difference to any 32 bit -implementations since an int and a long are the same size in -those environments. - --- -I also corrected a few compiler warnings generated by Borland -C. -1. Added #include <process.h> for exit() prototype -2. Removed unused variable 'j' in SHA1Final -3. Changed exit(0) to return(0) at end of main. - -ALL changes I made can be located by searching for comments -containing 'JHB' - ------------------ -Modified 13 August 2000 -By Michael Paul Johnson <mpj@cryptography.org> -Still 100% Public Domain - -Changed command line syntax, added feature to automatically -check files against their previous SHA-1 check values, kind of -like md5sum does. Added functions hexval, verifyfile, -and sha1file. Rewrote main(). ------------------ - -Test Vectors (from FIPS PUB 180-1) -"abc" - A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D -"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" - 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 -A million repetitions of "a" - 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F -*/ - -#define SHA1HANDSOFF /*Copies data before messing with it.*/ - -/*#define CMDLINE * include main() and file processing */ - -#include "sha1.h" - -#include <stdio.h> -#include <string.h> -#ifdef __BORLANDC__ -#include <dir.h> -#include <dos.h> -#include <process.h> /* prototype for exit() - JHB - needed for Win32, but chokes Linux - MPJ */ -#define X_LITTLE_ENDIAN /* This should be #define'd if true.*/ -#else -# include <unistd.h> -# include <stdlib.h> -//# include <endian.h> - -#include "DexFile.h" // want common byte ordering def - -# if __BYTE_ORDER == __LITTLE_ENDIAN -# define X_LITTLE_ENDIAN -# endif -#endif -#include <ctype.h> - -#define LINESIZE 2048 - -static void SHA1Transform(unsigned long state[5], - const unsigned char buffer[64]); - -#define rol(value,bits) \ - (((value)<<(bits))|((value)>>(32-(bits)))) - -/* blk0() and blk() perform the initial expand. */ -/* I got the idea of expanding during the round function from - SSLeay */ -#ifdef X_LITTLE_ENDIAN -#define blk0(i) (block->l[i]=(rol(block->l[i],24)&0xFF00FF00) \ - |(rol(block->l[i],8)&0x00FF00FF)) -#else -#define blk0(i) block->l[i] -#endif -#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ - ^block->l[(i+2)&15]^block->l[i&15],1)) - -/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ -#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); -#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); -#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); -#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); -#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); - - -/* Hash a single 512-bit block. This is the core of the algorithm. */ - -static void SHA1Transform(unsigned long state[5], - const unsigned char buffer[64]) -{ -unsigned long a, b, c, d, e; -typedef union { - unsigned char c[64]; - unsigned long l[16]; -} CHAR64LONG16; -CHAR64LONG16* block; -#ifdef SHA1HANDSOFF -static unsigned char workspace[64]; - block = (CHAR64LONG16*)workspace; - memcpy(block, buffer, 64); -#else - block = (CHAR64LONG16*)buffer; -#endif - /* Copy context->state[] to working vars */ - a = state[0]; - b = state[1]; - c = state[2]; - d = state[3]; - e = state[4]; - /* 4 rounds of 20 operations each. Loop unrolled. */ - R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); - R0(c,d,e,a,b, 3); R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); - R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); R0(c,d,e,a,b, 8); - R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); - R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); - R0(a,b,c,d,e,15); R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); - R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); R2(a,b,c,d,e,20); - R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); - R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); - R2(d,e,a,b,c,27); R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); - R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); R2(d,e,a,b,c,32); - R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); - R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); - R2(b,c,d,e,a,39); R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); - R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); R3(b,c,d,e,a,44); - R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); - R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); - R3(e,a,b,c,d,51); R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); - R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); R3(e,a,b,c,d,56); - R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); - R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); - R4(c,d,e,a,b,63); R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); - R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); R4(c,d,e,a,b,68); - R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); - R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); - R4(a,b,c,d,e,75); R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); - R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); - - /* Add the working vars back into context.state[] */ - state[0] += a; - state[1] += b; - state[2] += c; - state[3] += d; - state[4] += e; - /* Wipe variables */ -/* a = b = c = d = e = 0; Nice try, but the compiler -optimizes this out, anyway, and it produces an annoying -warning. */ -} - - -/* SHA1Init - Initialize new context */ - -void SHA1Init(SHA1_CTX* context) -{ - /* SHA1 initialization constants */ - context->state[0] = 0x67452301; - context->state[1] = 0xEFCDAB89; - context->state[2] = 0x98BADCFE; - context->state[3] = 0x10325476; - context->state[4] = 0xC3D2E1F0; - context->count[0] = context->count[1] = 0; -} - - -/* Run your data through this. */ - -void SHA1Update(SHA1_CTX* context, const unsigned char* data, - unsigned long len) /* JHB */ -{ - unsigned long i, j; /* JHB */ - - j = (context->count[0] >> 3) & 63; - if ((context->count[0] += len << 3) < (len << 3)) - context->count[1]++; - context->count[1] += (len >> 29); - if ((j + len) > 63) - { - memcpy(&context->buffer[j], data, (i = 64-j)); - SHA1Transform(context->state, context->buffer); - for ( ; i + 63 < len; i += 64) { - SHA1Transform(context->state, &data[i]); - } - j = 0; - } - else - i = 0; - memcpy(&context->buffer[j], &data[i], len - i); -} - - -/* Add padding and return the message digest. */ - -void SHA1Final(unsigned char digest[HASHSIZE], SHA1_CTX* -context) -{ -unsigned long i; /* JHB */ -unsigned char finalcount[8]; - - for (i = 0; i < 8; i++) - { - finalcount[i] = (unsigned char)((context->count[(i>=4? - 0:1)]>>((3-(i&3))*8))&255); - /* Endian independent */ - } - SHA1Update(context, (unsigned char *)"\200", 1); - while ((context->count[0] & 504) != 448) { - SHA1Update(context, (unsigned char *)"\0", 1); - } - SHA1Update(context, finalcount, 8); - /* Should cause a SHA1Transform() */ - for (i = 0; i < HASHSIZE; i++) { - digest[i] = (unsigned char) - ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); - } - /* Wipe variables */ - memset(context->buffer, 0, 64); - memset(context->state, 0, HASHSIZE); - memset(context->count, 0, 8); - memset(&finalcount, 0, 8); -#ifdef SHA1HANDSOFF - /* make SHA1Transform overwrite it's own static vars */ - SHA1Transform(context->state, context->buffer); -#endif -} - - - -#ifdef CMDLINE - -/* sha1file computes the SHA-1 hash of the named file and puts - it in the 20-byte array digest. If fname is NULL, stdin is - assumed. -*/ -void sha1file(char *fname, unsigned char* digest) -{ - int bytesread; - SHA1_CTX context; - unsigned char buffer[16384]; - FILE* f; - - if (fname) - { - f = fopen(fname, "rb"); - if (!f) - { - fprintf(stderr, "Can't open %s\n", fname); - memset(digest, 0, HASHSIZE); - return; - } - } - else - { - f = stdin; - } - SHA1Init(&context); - while (!feof(f)) - { - bytesread = fread(buffer, 1, 16384, f); - SHA1Update(&context, buffer, bytesread); - } - SHA1Final(digest, &context); - if (fname) - fclose(f); -} - -/* Convert ASCII hexidecimal digit to 4-bit value. */ -unsigned char hexval(char c) -{ - unsigned char h; - - c = toupper(c); - if (c >= 'A') - h = c - 'A' + 10; - else - h = c - '0'; - return h; -} - -/* Verify a file created with sha1sum by redirecting output - to a file. */ -int verifyfile(char *fname) -{ - int j, k; - int found = 0; - unsigned char digest[HASHSIZE]; - unsigned char expected_digest[HASHSIZE]; - FILE *checkfile; - char checkline[LINESIZE]; - char *s; - unsigned char err; - - checkfile = fopen(fname, "rt"); - if (!checkfile) - { - fprintf(stderr, "Can't open %s\n", fname); - return(0); - } - do - { - s = fgets(checkline, LINESIZE, checkfile); - if (s) - { - if ((strlen(checkline)>26)&& - 1 /*(!strncmp(checkline,"SHA1=", 5))*/) - { - /* Overwrite newline. */ - checkline[strlen(checkline)-1]=0; - found = 1; - - /* Read expected check value. */ - for (k=0, j=5; k < HASHSIZE; k++) - { - expected_digest[k]=hexval(checkline[j++]); - expected_digest[k]=(expected_digest[k]<<4) - +hexval(checkline[j++]); - } - - /* Compute fingerprints */ - s = checkline+46; - sha1file(s, digest); - - /* Compare fingerprints */ - err = 0; - for (k=0; k<HASHSIZE; k++) - err |= digest[k]- - expected_digest[k]; - if (err) - { - fprintf(stderr, "FAILED: %s\n" - " EXPECTED: ", s); - for (k=0; k<HASHSIZE; k++) - fprintf(stderr, "%02X", - expected_digest[k]); - fprintf(stderr,"\n FOUND: "); - for (k=0; k<HASHSIZE; k++) - fprintf(stderr, "%02X", digest[k]); - fprintf(stderr, "\n"); - } - else - { - printf("OK: %s\n", s); - } - } - } - } while (s); - return found; -} - - - -void syntax(char *progname) -{ - printf("\nsyntax:\n" - "%s [-c|-h][-q] file name[s]\n" - " -c = check files against previous check values\n" - " -g = generate SHA-1 check values (default action)\n" - " -h = display this help\n" - "For example,\n" - "sha1sum test.txt > check.txt\n" - "generates check value for test.txt in check.txt, and\n" - "sha1sum -c check.txt\n" - "checks test.txt against the check value in check.txt\n", - progname); - exit(1); -} - - -/**********************************************************/ - -int main(int argc, char** argv) -{ - int i, j, k; - int check = 0; - int found = 0; - unsigned char digest[HASHSIZE]; - unsigned char expected_digest[HASHSIZE]; - FILE *checkfile; - char checkline[LINESIZE]; - char *s; -#ifdef __BORLANDC__ - struct ffblk f; - int done; - char path[MAXPATH]; - char drive[MAXDRIVE]; - char dir[MAXDIR]; - char name[MAXFILE]; - char ext[MAXEXT]; -#endif - unsigned char err; - - for (i = 1; i < argc; i++) - { - if (argv[i][0] == '-') - { - switch (argv[i][1]) - { - case 'c': - case 'C': - check = 1; - break; - case 'g': - case 'G': - check = 0; - break; - default: - syntax(argv[0]); - } - } - } - - for (i=1; i<argc; i++) - { - if (argv[i][0] != '-') - { -#ifdef __BORLANDC__ - fnsplit(argv[i], drive, dir, name, ext); - done = findfirst(argv[i], &f, FA_RDONLY | - FA_HIDDEN|FA_SYSTEM|FA_ARCH); - while (!done) - { - sprintf(path, "%s%s%s", drive, dir, f.ff_name); - s = path; -#else - s = argv[i]; -#endif - - if (check) - { /* Check fingerprint file. */ - found |= verifyfile(s); - } - else - { /* Generate fingerprints & write to - stdout. */ - sha1file(s, digest); - //printf("SHA1="); - for (j=0; j<HASHSIZE; j++) - printf("%02x", digest[j]); - printf(" %s\n", s); - found = 1; - } - -#ifdef __BORLANDC__ - done = findnext(&f); - } -#endif - - } - } - if (!found) - { - if (check) - { - fprintf(stderr, - "No SHA1 lines found in %s\n", - argv[i]); - } - else - { - fprintf(stderr, "No files checked.\n"); - syntax(argv[0]); - } - } - return(0); /* JHB */ -} - -#endif /*CMDLINE*/ diff --git a/libdex/sha1.h b/libdex/sha1.h deleted file mode 100644 index 65cf667cd..000000000 --- a/libdex/sha1.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * See "sha1.c" for author info. - */ -#ifndef _DALVIK_SHA1 -#define _DALVIK_SHA1 - -typedef struct { - unsigned long state[5]; - unsigned long count[2]; - unsigned char buffer[64]; -} SHA1_CTX; - -#define HASHSIZE 20 - -void SHA1Init(SHA1_CTX* context); -void SHA1Update(SHA1_CTX* context, const unsigned char* data, - unsigned long len); -void SHA1Final(unsigned char digest[HASHSIZE], SHA1_CTX* context); - -#endif /*_DALVIK_SHA1*/ |
