| 42 | std::list<int> dumped; |
| 43 | |
| 44 | void handleDumpByDexFile(void *dex_file) { |
| 45 | char magic[8] = {0x64, 0x65, 0x78, 0x0a, 0x30, 0x33, 0x35, 0x00}; |
| 46 | if (!PointerCheck::check(dex_file)) { |
| 47 | return; |
| 48 | } |
| 49 | auto dexFile = static_cast<art_lkchan::DexFile *>(dex_file); |
| 50 | |
| 51 | int size = dexFile->Size(); |
| 52 | list<int>::iterator iterator; |
| 53 | for (iterator = dumped.begin(); iterator != dumped.end(); ++iterator) { |
| 54 | int value = *iterator; |
| 55 | if (size == value) { |
| 56 | return; |
| 57 | } |
| 58 | } |
| 59 | void *buffer = malloc(size); |
| 60 | if (buffer) { |
| 61 | memcpy(buffer, dexFile->Begin(), size); |
| 62 | // fix magic |
| 63 | memcpy(buffer, magic, sizeof(magic)); |
| 64 | |
| 65 | const bool kVerifyChecksum = false; |
| 66 | const bool kVerify = true; |
| 67 | const art_lkchan::DexFileLoader dex_file_loader; |
| 68 | std::string error_msg; |
| 69 | std::vector<std::unique_ptr<const art_lkchan::DexFile>> dex_files; |
| 70 | if (!dex_file_loader.OpenAll(reinterpret_cast<const uint8_t *>(buffer), |
| 71 | size, |
| 72 | "", |
| 73 | kVerify, |
| 74 | kVerifyChecksum, |
| 75 | &error_msg, |
| 76 | &dex_files)) { |
| 77 | // Display returned error message to user. Note that this error behavior |
| 78 | // differs from the error messages shown by the original Dalvik dexdump. |
| 79 | ALOGE("Open dex error %s", error_msg.c_str()); |
| 80 | return; |
| 81 | } |
| 82 | |
| 83 | char path[1024]; |
| 84 | sprintf(path, "%s/hook_%d.dex", dumpPath, size); |
| 85 | auto fd = open(path, O_CREAT | O_WRONLY, 0600); |
| 86 | ssize_t w = write(fd, buffer, size); |
| 87 | fsync(fd); |
| 88 | if (w > 0) { |
| 89 | ALOGE("hook dump dex ======> %s", path); |
| 90 | } else { |
| 91 | remove(path); |
| 92 | } |
| 93 | close(fd); |
| 94 | free(buffer); |
| 95 | dumped.push_back(size); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | HOOK_JNI(int, kill, pid_t __pid, int __signal) { |
| 100 | ALOGE("hooked so kill"); |