1    :  // Copyright 2014 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  //
  15    :  // Defines the list of functions to be intercepted by Asan instrumentation.
  16    :  
  17    :  #include "syzygy/instrument/transforms/asan_intercepts.h"
  18    :  
  19    :  #include <stddef.h>
  20    :  
  21  m :  namespace instrument {
  22  m :  namespace transforms {
  23    :  
  24  m :  const MD5Hash kHashes_memchr[] = {
  25  m :      {"3549cc2f365403c679287c34325b8925"},  // VS2010, VS2013, VS2015.
  26  m :      {""} };
  27  m :  const MD5Hash kHashes_strcspn[] = {
  28  m :      {"c2e8480d30ceeeb2e9e39b545c82c98c"},  // VS2010 and VS2013.
  29  m :      {""} };
  30  m :  const MD5Hash kHashes_strlen[] = {
  31  m :      {"20e07f6e772c47e6cbfc13db5eafa757"},  // VS2010 and VS2013.
  32  m :      {""} };
  33  m :  const MD5Hash kHashes_strnlen[] = {
  34  m :      {"09d4062ec47f5e7fd25a19bc60c4bd8e"},  // VS2013.
  35  m :      {"7f4492174275ca903993fef8d7f8ef77"},  // VS2015.
  36  m :      {""} };
  37  m :  const MD5Hash kHashes_strpbrk[] = {
  38  m :      {"9af2e6d499d25ad4628c58a25dbcde1e"},  // VS2010 and VS2013.
  39  m :      {""} };
  40  m :  const MD5Hash kHashes_strspn[] = {
  41  m :      {"79b6a33a1b03b482be14afff061d7c68"},  // VS2010 and VS2013.
  42  m :      {""} };
  43  m :  const MD5Hash kHashes_strncpy[] = {
  44  m :      {"aed1dd2372364f66f4d126eefb073070"},  // VS2010, VS2013, VS2015.
  45  m :      {""} };
  46  m :  const MD5Hash kHashes_strncat[] = {
  47  m :      {"9cc9e9a57cdd695606caf6cbf532d88e"},  // VS2010, VS2013, VS2015.
  48  m :      {""} };
  49  m :  const MD5Hash kHashes_memcpy[] = {
  50  m :      {"da1805f40d6e92f6ac497c66ac969e61"},  // VS2010.
  51  m :      {"270406ea8a9e931f2c0db8a7f0b5d698"},  // VS2013.
  52  m :      {"efbdeed39029c2d07800b504e28b5df6"},  // VS2015.
  53  m :      {""} };
  54  m :  const MD5Hash kHashes_memmove[] = {
  55  m :      {"da1805f40d6e92f6ac497c66ac969e61"},  // VS2010.
  56  m :      {"270406ea8a9e931f2c0db8a7f0b5d698"},  // VS2013.
  57  m :      {"efbdeed39029c2d07800b504e28b5df6"},  // VS2015.
  58  m :      {""} };
  59  m :  const MD5Hash kHashes_memset[] = {
  60  m :      {"5fcb11b79692c753845cf26dfa42e74c"},  // VS2010.
  61  m :      {"4900d834c35bb195ab8af6f91d648d6d"},  // VS2013.
  62  m :      {"2e1f679969390b71b0b28ae4153b53df"},  // VS2015.
  63  m :      {""} };
  64  m :  const MD5Hash kHashes_strrchr[] = {
  65  m :      {"f849347be44ddb17a4fc3c64b90f8cca"},  // VS2010.
  66  m :      {"17575b2dc3a7fd3b277d0cd798f507df"},  // VS2013, VS2015.
  67  m :      {""} };
  68  m :  const MD5Hash kHashes_strcmp[] = {
  69  m :      {"865502e059de8a9dc6cee8ef05b1a586"},  // VS2010.
  70  m :      {"3de87a84bf545bd485f846c1b9456bcb"},  // VS2013.
  71  m :      {""} };
  72  m :  const MD5Hash kHashes_strstr[] = {
  73  m :      {"cdfbaae199dcc8272681c021fab9d664"},  // VS2010.
  74  m :      {"1926bd8c94118f97819d604ec5afee30"},  // VS2013.
  75  m :      {""} };
  76  m :  const MD5Hash kHashes_wcsnlen[] = {
  77  m :      {"3764327beb7392f3b841b72b89f94af5"},  // VS2013.
  78  m :      {"2059f3897a59cf8a0fe6d1803c90af77"},  // VS2015.
  79  m :      {""} };
  80  m :  const MD5Hash kHashes_wcsrchr[] = {
  81  m :      {"dc474260def9e341659230dc2edd13e6"},  // VS2013.
  82  m :      {"bfb15ac56c29c1dd8c68e9ba25d264a8"},  // VS2015.
  83  m :      {""} };
  84  m :  const MD5Hash kHashes_wcschr[] = {
  85  m :      {"3fae79785ec4de9951eac512bc62a27e"},  // VS2013.
  86  m :      {"941bb6826538a1a40f055cb28c7b3695"},  // VS2015.
  87  m :      {""} };
  88  m :  const MD5Hash kHashes_wcsstr[] = {
  89  m :      {"2301f403b55567eae76f3dc58dd777f4"},  // VS2013.
  90  m :      {"01fb77e5eeab6ae224a705aa6ad5117d"},  // VS2015.
  91  m :      {""} };
  92    :  
  93    :  // List of module names.
  94  m :  const char kKernel32[] = "kernel32.dll";
  95    :  
  96    :  // Functions with the same value for |module| must be consecutive in this
  97    :  // array.
  98  m :  const AsanIntercept kAsanIntercepts[] = {
  99    :    // Heap related kernel32 functions.
 100  m :    { "HeapCreate", "_HeapCreate@12", kKernel32, NULL, false },
 101  m :    { "HeapDestroy", "_HeapDestroy@4", kKernel32, NULL, false },
 102  m :    { "HeapAlloc",  "_HeapAlloc@12", kKernel32, NULL, false },
 103  m :    { "HeapReAlloc", "_HeapReAlloc@16", kKernel32, NULL, false },
 104  m :    { "HeapFree", "_HeapFree@12", kKernel32, NULL, false },
 105  m :    { "HeapSize", "_HeapSize@12", kKernel32, NULL, false },
 106  m :    { "HeapValidate", "_HeapValidate@12", kKernel32, NULL, false },
 107  m :    { "HeapCompact", "_HeapCompact@8", kKernel32, NULL, false },
 108  m :    { "HeapLock", "_HeapLock@4", kKernel32, NULL, false },
 109  m :    { "HeapUnlock", "_HeapUnlock@4", kKernel32, NULL, false },
 110  m :    { "HeapWalk", "_HeapWalk@8", kKernel32, NULL, false },
 111  m :    { "HeapSetInformation", "_HeapSetInformation@16", kKernel32, NULL, false },
 112  m :    { "HeapQueryInformation", "_HeapQueryInformation@20", kKernel32, NULL,
 113  m :      false },
 114    :  
 115    :  // Bring in the list of system interceptors that have been automatically
 116    :  // generated.
 117    :  #include "syzygy/agent/asan/gen/system_interceptors_instrumentation_filter.gen"
 118    :  
 119    :    // C-runtime functions. For Chrome these are always statically linked, but
 120    :    // they *could* be imported from one of several different versions of the
 121    :    // runtime library.
 122    :    // TODO(chrisha): Add support for intercepting these via import redirection?
 123    :    //     This might involve handling multiple possible module names per
 124    :    //     function.
 125  m :    { "memchr", "_memchr", NULL, kHashes_memchr, true },
 126  m :    { "memcpy", "_memcpy", NULL, kHashes_memcpy, true },
 127  m :    { "memmove", "_memmove", NULL, kHashes_memmove, true },
 128  m :    { "memset", "_memset", NULL, kHashes_memset, true },
 129  m :    { "strlen", "_strlen", NULL, kHashes_strlen, true },
 130  m :    { "strnlen", "_strnlen", NULL, kHashes_strnlen, true },
 131  m :    { "strncpy", "_strncpy", NULL, kHashes_strncpy, true },
 132  m :    { "strncat", "_strncat", NULL, kHashes_strncat, true },
 133  m :    { "strrchr", "_strrchr", NULL, kHashes_strrchr, true },
 134  m :    { "wcsnlen", "_wcsnlen", NULL, kHashes_wcsnlen, true },
 135  m :    { "wcsrchr", "_wcsrchr", NULL, kHashes_wcsrchr, true },
 136  m :    { "wcschr", "_wcschr", NULL, kHashes_wcschr, true },
 137  m :    { "wcsstr", "_wcsstr", NULL, kHashes_wcsstr, true },
 138    :  
 139    :    // Terminating entry.
 140  m :    { NULL, NULL, NULL, NULL, false },
 141  m :  };
 142    :  
 143  m :  const char kUndecoratedAsanInterceptPrefix[] = "asan_";
 144  m :  const char kDecoratedAsanInterceptPrefix[] = "_asan";
 145  m :  const char kDecoratedImportPrefix[] = "__imp_";
 146    :  
 147  m :  const char kUndecoratedHotPatchingAsanInterceptPrefix[] = "hp_asan_";
 148    :  
 149  m :  }  // namespace transforms
 150  m :  }  // namespace instrument