robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 1 | /* |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 2 | * |
robert.swiecki@gmail.com | 90e9911 | 2015-02-15 02:05:14 +0000 | [diff] [blame] | 3 | * honggfuzz - fuzzing routines |
| 4 | * ----------------------------------------- |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 5 | * |
robert.swiecki@gmail.com | 8531f69 | 2015-02-17 12:25:36 +0000 | [diff] [blame] | 6 | * Author: |
| 7 | * Robert Swiecki <swiecki@google.com> |
| 8 | * Felix Gröbert <groebert@google.com> |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 9 | * |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 10 | * Copyright 2010-2015 by Google Inc. All Rights Reserved. |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 11 | * |
| 12 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 13 | * not use this file except in compliance with the License. You may obtain |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 14 | * a copy of the License at |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 15 | * |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 16 | * http://www.apache.org/licenses/LICENSE-2.0 |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 17 | * |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 18 | * Unless required by applicable law or agreed to in writing, software |
| 19 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 20 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| 21 | * implied. See the License for the specific language governing |
| 22 | * permissions and limitations under the License. |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 23 | * |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 24 | */ |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 25 | |
robert.swiecki@gmail.com | ba85c3e | 2015-02-02 14:55:16 +0000 | [diff] [blame] | 26 | #include "common.h" |
| 27 | #include "fuzz.h" |
| 28 | |
| 29 | #include <errno.h> |
| 30 | #include <fcntl.h> |
robert.swiecki@gmail.com | 90e9911 | 2015-02-15 02:05:14 +0000 | [diff] [blame] | 31 | #include <inttypes.h> |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 32 | #include <pthread.h> |
robert.swiecki@gmail.com | ba85c3e | 2015-02-02 14:55:16 +0000 | [diff] [blame] | 33 | #include <signal.h> |
| 34 | #include <stddef.h> |
| 35 | #include <stdint.h> |
| 36 | #include <stdio.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <string.h> |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 39 | #include <sys/mman.h> |
| 40 | #include <sys/param.h> |
| 41 | #include <sys/stat.h> |
robert.swiecki@gmail.com | ba85c3e | 2015-02-02 14:55:16 +0000 | [diff] [blame] | 42 | #include <sys/time.h> |
| 43 | #include <sys/types.h> |
| 44 | #include <sys/wait.h> |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 45 | #include <time.h> |
robert.swiecki@gmail.com | ba85c3e | 2015-02-02 14:55:16 +0000 | [diff] [blame] | 46 | #include <unistd.h> |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 47 | |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 48 | #include "arch.h" |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 49 | #include "files.h" |
robert.swiecki@gmail.com | e7190b9 | 2015-02-14 23:05:42 +0000 | [diff] [blame] | 50 | #include "log.h" |
robert.swiecki@gmail.com | 36700b5 | 2015-02-22 05:03:16 +0000 | [diff] [blame] | 51 | #include "mangle.h" |
robert.swiecki@gmail.com | e7190b9 | 2015-02-14 23:05:42 +0000 | [diff] [blame] | 52 | #include "report.h" |
| 53 | #include "util.h" |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 54 | |
Anestis Bechtsoudis | cfc39fb | 2015-08-06 10:31:36 +0300 | [diff] [blame^] | 55 | #if defined(__ANDROID__) |
| 56 | #if defined(__aarch64__) && !defined(__NR_fork) |
| 57 | #include <sys/syscall.h> |
| 58 | |
| 59 | pid_t honggfuzz_aarch64_fork(void) |
| 60 | { |
| 61 | return syscall(__NR_clone, SIGCHLD, NULL); |
| 62 | } |
| 63 | # define fork honggfuzz_aarch64_fork |
| 64 | #endif |
| 65 | #endif |
| 66 | |
robert.swiecki@gmail.com | cf4e8d0 | 2015-04-23 15:53:39 +0000 | [diff] [blame] | 67 | static int fuzz_sigReceived = 0; |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 68 | |
robert.swiecki@gmail.com | 7729450 | 2015-04-23 15:41:15 +0000 | [diff] [blame] | 69 | static void fuzz_sigHandler(int sig, siginfo_t * si, void *v) |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 70 | { |
robert.swiecki@gmail.com | cf4e8d0 | 2015-04-23 15:53:39 +0000 | [diff] [blame] | 71 | fuzz_sigReceived = sig; |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 72 | return; |
robert.swiecki@gmail.com | 7729450 | 2015-04-23 15:41:15 +0000 | [diff] [blame] | 73 | if (si == NULL) { |
| 74 | return; |
| 75 | } |
| 76 | if (v == NULL) { |
| 77 | return; |
| 78 | } |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 79 | } |
| 80 | |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 81 | static void fuzz_getFileName(honggfuzz_t * hfuzz, char *fileName) |
| 82 | { |
robert.swiecki | ba51263 | 2011-01-28 11:57:26 +0000 | [diff] [blame] | 83 | struct timeval tv; |
| 84 | gettimeofday(&tv, NULL); |
| 85 | |
robert.swiecki@gmail.com | 6f31991 | 2015-02-28 05:01:37 +0000 | [diff] [blame] | 86 | snprintf(fileName, PATH_MAX, ".honggfuzz.%d.%lu.%llx.%s", (int)getpid(), |
| 87 | (unsigned long int)tv.tv_sec, (unsigned long long int)util_rndGet(0, 1ULL << 62), |
robert.swiecki@gmail.com | bb5d264 | 2015-02-25 20:00:00 +0000 | [diff] [blame] | 88 | hfuzz->fileExtn); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 89 | |
| 90 | return; |
| 91 | } |
| 92 | |
robert.swiecki@gmail.com | 624233e | 2015-02-18 10:26:05 +0000 | [diff] [blame] | 93 | static bool fuzz_prepareFileDynamically(honggfuzz_t * hfuzz, fuzzer_t * fuzzer, int rnd_index) |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 94 | { |
robert.swiecki@gmail.com | 41d8e05 | 2015-02-19 01:10:41 +0000 | [diff] [blame] | 95 | while (pthread_mutex_lock(&hfuzz->dynamicFile_mutex)) ; |
| 96 | |
robert.swiecki@gmail.com | 7aad717 | 2015-03-03 04:34:15 +0000 | [diff] [blame] | 97 | if (hfuzz->inputFile && hfuzz->branchBestCnt[0] == 0 && hfuzz->branchBestCnt[1] == 0 |
robert.swiecki | 7185c26 | 2015-03-20 17:21:28 +0000 | [diff] [blame] | 98 | && hfuzz->branchBestCnt[2] == 0 && hfuzz->branchBestCnt[3] == 0) { |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 99 | size_t fileSz = files_readFileToBufMax(hfuzz->files[rnd_index], hfuzz->dynamicFileBest, |
| 100 | hfuzz->maxFileSz); |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 101 | if (fileSz == 0) { |
robert.swiecki@gmail.com | 41d8e05 | 2015-02-19 01:10:41 +0000 | [diff] [blame] | 102 | while (pthread_mutex_unlock(&hfuzz->dynamicFile_mutex)) ; |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 103 | LOGMSG(l_ERROR, "Couldn't read '%s'", hfuzz->files[rnd_index]); |
robert.swiecki@gmail.com | 624233e | 2015-02-18 10:26:05 +0000 | [diff] [blame] | 104 | return false; |
| 105 | } |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 106 | hfuzz->dynamicFileBestSz = fileSz; |
robert.swiecki@gmail.com | 624233e | 2015-02-18 10:26:05 +0000 | [diff] [blame] | 107 | } |
| 108 | |
robert.swiecki@gmail.com | 060a9dd | 2015-02-28 06:37:27 +0000 | [diff] [blame] | 109 | if (hfuzz->dynamicFileBestSz > hfuzz->maxFileSz) { |
| 110 | LOGMSG(l_FATAL, "Current BEST file Sz > maxFileSz (%zu > %zu)", hfuzz->dynamicFileBestSz, |
| 111 | hfuzz->maxFileSz); |
| 112 | } |
| 113 | |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 114 | fuzzer->dynamicFileSz = hfuzz->dynamicFileBestSz; |
robert.swiecki@gmail.com | 3b6c629 | 2015-02-26 11:48:46 +0000 | [diff] [blame] | 115 | memcpy(fuzzer->dynamicFile, hfuzz->dynamicFileBest, hfuzz->dynamicFileBestSz); |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 116 | |
robert.swiecki@gmail.com | 41d8e05 | 2015-02-19 01:10:41 +0000 | [diff] [blame] | 117 | while (pthread_mutex_unlock(&hfuzz->dynamicFile_mutex)) ; |
| 118 | |
robert.swiecki@gmail.com | 141c452 | 2015-02-19 15:49:23 +0000 | [diff] [blame] | 119 | /* The first pass should be on an empty/initial file */ |
robert.swiecki | 2a95369 | 2015-03-16 19:33:37 +0000 | [diff] [blame] | 120 | if (hfuzz->branchBestCnt[0] > 0 || hfuzz->branchBestCnt[1] > 0 || hfuzz->branchBestCnt[2] > 0 |
| 121 | || hfuzz->branchBestCnt[3] > 0) { |
robert.swiecki@gmail.com | ace4086 | 2015-03-08 07:09:56 +0000 | [diff] [blame] | 122 | mangle_Resize(hfuzz, fuzzer->dynamicFile, &fuzzer->dynamicFileSz); |
robert.swiecki@gmail.com | 36700b5 | 2015-02-22 05:03:16 +0000 | [diff] [blame] | 123 | mangle_mangleContent(hfuzz, fuzzer->dynamicFile, fuzzer->dynamicFileSz); |
robert.swiecki@gmail.com | 141c452 | 2015-02-19 15:49:23 +0000 | [diff] [blame] | 124 | } |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 125 | |
robert.swiecki@gmail.com | dc8403e | 2015-03-01 01:33:00 +0000 | [diff] [blame] | 126 | if (files_writeBufToFile |
robert.swiecki@gmail.com | 62e34ae | 2015-03-05 03:39:32 +0000 | [diff] [blame] | 127 | (fuzzer->fileName, fuzzer->dynamicFile, fuzzer->dynamicFileSz, |
| 128 | O_WRONLY | O_CREAT | O_EXCL | O_TRUNC) == false) { |
robert.swiecki@gmail.com | dc8403e | 2015-03-01 01:33:00 +0000 | [diff] [blame] | 129 | LOGMSG(l_ERROR, "Couldn't write buffer to file '%s'", fuzzer->fileName); |
robert.swiecki@gmail.com | 3b6c629 | 2015-02-26 11:48:46 +0000 | [diff] [blame] | 130 | return false; |
| 131 | } |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 132 | |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 133 | return true; |
robert.swiecki@gmail.com | d7aed31 | 2015-02-03 21:26:37 +0000 | [diff] [blame] | 134 | } |
| 135 | |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 136 | static bool fuzz_prepareFile(honggfuzz_t * hfuzz, fuzzer_t * fuzzer, int rnd_index) |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 137 | { |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 138 | size_t fileSz = |
| 139 | files_readFileToBufMax(hfuzz->files[rnd_index], fuzzer->dynamicFile, hfuzz->maxFileSz); |
| 140 | if (fileSz == 0UL) { |
| 141 | LOGMSG(l_ERROR, "Couldn't read contents of '%s'", hfuzz->files[rnd_index]); |
robert.swiecki@gmail.com | bb5d264 | 2015-02-25 20:00:00 +0000 | [diff] [blame] | 142 | return false; |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 143 | } |
| 144 | |
robert.swiecki@gmail.com | ace4086 | 2015-03-08 07:09:56 +0000 | [diff] [blame] | 145 | mangle_Resize(hfuzz, fuzzer->dynamicFile, &fileSz); |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 146 | mangle_mangleContent(hfuzz, fuzzer->dynamicFile, fileSz); |
robert.swiecki@gmail.com | c070b94 | 2015-02-25 18:29:19 +0000 | [diff] [blame] | 147 | |
robert.swiecki@gmail.com | dc8403e | 2015-03-01 01:33:00 +0000 | [diff] [blame] | 148 | if (files_writeBufToFile |
robert.swiecki@gmail.com | 62e34ae | 2015-03-05 03:39:32 +0000 | [diff] [blame] | 149 | (fuzzer->fileName, fuzzer->dynamicFile, fileSz, O_WRONLY | O_CREAT | O_EXCL) == false) { |
robert.swiecki@gmail.com | dc8403e | 2015-03-01 01:33:00 +0000 | [diff] [blame] | 150 | LOGMSG(l_ERROR, "Couldn't write buffer to file '%s'", fuzzer->fileName); |
robert.swiecki@gmail.com | e768052 | 2015-02-22 22:22:37 +0000 | [diff] [blame] | 151 | return false; |
| 152 | } |
| 153 | |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 154 | return true; |
| 155 | } |
| 156 | |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 157 | static bool fuzz_prepareFileExternally(honggfuzz_t * hfuzz, fuzzer_t * fuzzer, int rnd_index) |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 158 | { |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 159 | int dstfd = open(fuzzer->fileName, O_CREAT | O_EXCL | O_RDWR, 0644); |
robert.swiecki | 3d505e2 | 2010-10-14 01:17:17 +0000 | [diff] [blame] | 160 | if (dstfd == -1) { |
robert.swiecki@gmail.com | bb5d264 | 2015-02-25 20:00:00 +0000 | [diff] [blame] | 161 | LOGMSG_P(l_ERROR, "Couldn't create a temporary file '%s' in the current directory", |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 162 | fuzzer->fileName); |
robert.swiecki@gmail.com | ebc1cac | 2011-07-02 03:15:51 +0000 | [diff] [blame] | 163 | return false; |
| 164 | } |
| 165 | |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 166 | LOGMSG(l_DEBUG, "Created '%f' as an input file", fuzzer->fileName); |
robert.swiecki@gmail.com | ebc1cac | 2011-07-02 03:15:51 +0000 | [diff] [blame] | 167 | |
| 168 | if (hfuzz->inputFile) { |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 169 | size_t fileSz = |
| 170 | files_readFileToBufMax(hfuzz->files[rnd_index], fuzzer->dynamicFile, hfuzz->maxFileSz); |
| 171 | if (fileSz == 0UL) { |
| 172 | LOGMSG(l_ERROR, "Couldn't read '%s'", hfuzz->files[rnd_index]); |
| 173 | unlink(fuzzer->fileName); |
robert.swiecki@gmail.com | ebc1cac | 2011-07-02 03:15:51 +0000 | [diff] [blame] | 174 | return false; |
| 175 | } |
| 176 | |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 177 | if (files_writeToFd(dstfd, fuzzer->dynamicFile, fileSz) == false) { |
robert.swiecki@gmail.com | ebc1cac | 2011-07-02 03:15:51 +0000 | [diff] [blame] | 178 | close(dstfd); |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 179 | unlink(fuzzer->fileName); |
robert.swiecki@gmail.com | ebc1cac | 2011-07-02 03:15:51 +0000 | [diff] [blame] | 180 | return false; |
| 181 | } |
robert.swiecki | 3d505e2 | 2010-10-14 01:17:17 +0000 | [diff] [blame] | 182 | } |
| 183 | |
robert.swiecki | 3d505e2 | 2010-10-14 01:17:17 +0000 | [diff] [blame] | 184 | close(dstfd); |
| 185 | |
robert.swiecki@gmail.com | bb2b4aa | 2015-03-05 01:48:46 +0000 | [diff] [blame] | 186 | pid_t pid = fork(); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 187 | if (pid == -1) { |
robert.swiecki@gmail.com | 8a9df0e | 2015-02-13 17:08:06 +0000 | [diff] [blame] | 188 | LOGMSG_P(l_ERROR, "Couldn't vfork"); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 189 | return false; |
| 190 | } |
| 191 | |
| 192 | if (!pid) { |
| 193 | /* |
robert.swiecki@gmail.com | cdf18f9 | 2015-02-11 22:22:18 +0000 | [diff] [blame] | 194 | * child performs the external file modifications |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 195 | */ |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 196 | execl(hfuzz->externalCommand, hfuzz->externalCommand, fuzzer->fileName, NULL); |
| 197 | LOGMSG_P(l_FATAL, "Couldn't execute '%s %s'", hfuzz->externalCommand, fuzzer->fileName); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 198 | return false; |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 199 | } |
robert.swiecki@gmail.com | 8a9df0e | 2015-02-13 17:08:06 +0000 | [diff] [blame] | 200 | |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 201 | /* |
| 202 | * parent waits until child is done fuzzing the input file |
| 203 | */ |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 204 | int childStatus; |
| 205 | int flags = 0; |
robert.swiecki@gmail.com | a229118 | 2015-02-13 16:56:27 +0000 | [diff] [blame] | 206 | #if defined(__WNOTHREAD) |
| 207 | flags |= __WNOTHREAD; |
robert.swiecki@gmail.com | 8a9df0e | 2015-02-13 17:08:06 +0000 | [diff] [blame] | 208 | #endif /* defined(__WNOTHREAD) */ |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 209 | while (wait4(pid, &childStatus, flags, NULL) != pid) ; |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 210 | if (WIFEXITED(childStatus)) { |
| 211 | LOGMSG(l_DEBUG, "External command exited with status %d", WEXITSTATUS(childStatus)); |
| 212 | return true; |
| 213 | } |
| 214 | if (WIFSIGNALED(childStatus)) { |
robert.swiecki@gmail.com | a229118 | 2015-02-13 16:56:27 +0000 | [diff] [blame] | 215 | LOGMSG(l_ERROR, "External command terminated with signal %d", WTERMSIG(childStatus)); |
robert.swiecki | 3d505e2 | 2010-10-14 01:17:17 +0000 | [diff] [blame] | 216 | return false; |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 217 | } |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 218 | LOGMSG(l_FATAL, "External command terminated abnormally, status: %d", childStatus); |
| 219 | return false; |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 220 | |
| 221 | abort(); /* NOTREACHED */ |
| 222 | } |
| 223 | |
robert.swiecki@gmail.com | 6ff9af8 | 2015-02-11 18:52:05 +0000 | [diff] [blame] | 224 | static int fuzz_numOfProc(honggfuzz_t * hfuzz) |
| 225 | { |
| 226 | int i; |
tlogic@gmail.com | cae80fe | 2015-05-01 06:17:50 +0000 | [diff] [blame] | 227 | if (sem_getvalue(hfuzz->sem, &i) == -1) { |
| 228 | return 0; |
| 229 | } |
robert.swiecki@gmail.com | 6ff9af8 | 2015-02-11 18:52:05 +0000 | [diff] [blame] | 230 | return hfuzz->threadsMax - i; |
| 231 | } |
| 232 | |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 233 | static void *fuzz_threadNew(void *arg) |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 234 | { |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 235 | honggfuzz_t *hfuzz = (honggfuzz_t *) arg; |
| 236 | fuzzer_t fuzzer = { |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 237 | .pid = 0, |
robert.swiecki@gmail.com | 3213a11 | 2015-03-12 01:42:02 +0000 | [diff] [blame] | 238 | .timeStartedMillis = util_timeNowMillis(), |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 239 | .pc = 0ULL, |
| 240 | .backtrace = 0ULL, |
| 241 | .access = 0ULL, |
| 242 | .exception = 0, |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 243 | .dynamicFileSz = 0, |
robert.swiecki@gmail.com | 441089a | 2015-02-23 13:14:07 +0000 | [diff] [blame] | 244 | .dynamicFile = malloc(hfuzz->maxFileSz), |
robert.swiecki@gmail.com | 4be2667 | 2015-03-05 03:36:50 +0000 | [diff] [blame] | 245 | .branchCnt = {[0 ... (ARRAYSIZE(fuzzer.branchCnt) - 1)] = 0}, |
robert.swiecki@gmail.com | d4dd4df | 2015-02-18 00:50:12 +0000 | [diff] [blame] | 246 | .report = {'\0'} |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 247 | }; |
robert.swiecki@gmail.com | 441089a | 2015-02-23 13:14:07 +0000 | [diff] [blame] | 248 | if (fuzzer.dynamicFile == NULL) { |
| 249 | LOGMSG(l_FATAL, "malloc(%zu) failed", hfuzz->maxFileSz); |
| 250 | } |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 251 | |
groebert@google.com | 1c7e3b0 | 2013-06-19 09:27:38 +0000 | [diff] [blame] | 252 | int rnd_index = util_rndGet(0, hfuzz->fileCnt - 1); |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 253 | strncpy(fuzzer.origFileName, files_basename(hfuzz->files[rnd_index]), PATH_MAX); |
| 254 | fuzz_getFileName(hfuzz, fuzzer.fileName); |
groebert@google.com | 1c7e3b0 | 2013-06-19 09:27:38 +0000 | [diff] [blame] | 255 | |
robert.swiecki@gmail.com | cac22fd | 2015-02-19 14:03:28 +0000 | [diff] [blame] | 256 | if (hfuzz->dynFileMethod != _HF_DYNFILE_NONE) { |
robert.swiecki@gmail.com | 624233e | 2015-02-18 10:26:05 +0000 | [diff] [blame] | 257 | if (!fuzz_prepareFileDynamically(hfuzz, &fuzzer, rnd_index)) { |
robert.swiecki@gmail.com | 6d6f756 | 2015-02-17 22:18:51 +0000 | [diff] [blame] | 258 | exit(EXIT_FAILURE); |
| 259 | } |
| 260 | } else if (hfuzz->externalCommand != NULL) { |
robert.swiecki@gmail.com | 2085120 | 2015-03-01 01:48:15 +0000 | [diff] [blame] | 261 | if (!fuzz_prepareFileExternally(hfuzz, &fuzzer, rnd_index)) { |
robert.swiecki@gmail.com | 6ff9af8 | 2015-02-11 18:52:05 +0000 | [diff] [blame] | 262 | exit(EXIT_FAILURE); |
| 263 | } |
| 264 | } else { |
robert.swiecki@gmail.com | 4a7a9d8 | 2015-03-01 01:25:16 +0000 | [diff] [blame] | 265 | if (!fuzz_prepareFile(hfuzz, &fuzzer, rnd_index)) { |
robert.swiecki@gmail.com | 6ff9af8 | 2015-02-11 18:52:05 +0000 | [diff] [blame] | 266 | exit(EXIT_FAILURE); |
| 267 | } |
robert.swiecki@gmail.com | 1f98a16 | 2015-02-11 15:09:22 +0000 | [diff] [blame] | 268 | } |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 269 | |
Anestis Bechtsoudis | cfc39fb | 2015-08-06 10:31:36 +0300 | [diff] [blame^] | 270 | #if defined(_HF_ARCH_LINUX) && defined(__NR_fork) |
robert.swiecki@gmail.com | dfde1c7 | 2015-02-18 13:22:55 +0000 | [diff] [blame] | 271 | #include <unistd.h> |
| 272 | #include <sys/syscall.h> |
| 273 | fuzzer.pid = syscall(__NR_fork); |
robert.swiecki@gmail.com | 4fc1969 | 2015-02-25 15:45:11 +0000 | [diff] [blame] | 274 | #else /* defined(_HF_ARCH_LINUX) */ |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 275 | fuzzer.pid = fork(); |
robert.swiecki | 5fa9d90 | 2015-02-25 15:31:56 +0000 | [diff] [blame] | 276 | #endif /* defined(_HF_ARCH_LINUX) */ |
robert.swiecki@gmail.com | dfde1c7 | 2015-02-18 13:22:55 +0000 | [diff] [blame] | 277 | |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 278 | if (fuzzer.pid == -1) { |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 279 | LOGMSG_P(l_FATAL, "Couldn't fork"); |
| 280 | exit(EXIT_FAILURE); |
| 281 | } |
| 282 | |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 283 | if (!fuzzer.pid) { |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 284 | /* |
robert.swiecki@gmail.com | 6ff9af8 | 2015-02-11 18:52:05 +0000 | [diff] [blame] | 285 | * Ok, kill the parent if this fails |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 286 | */ |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 287 | if (!arch_launchChild(hfuzz, fuzzer.fileName)) { |
robert.swiecki@gmail.com | 6f5c239 | 2015-02-16 18:13:09 +0000 | [diff] [blame] | 288 | LOGMSG(l_ERROR, "Error launching child process, killing parent"); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 289 | exit(EXIT_FAILURE); |
| 290 | } |
| 291 | } |
| 292 | |
robert.swiecki@gmail.com | bb5d264 | 2015-02-25 20:00:00 +0000 | [diff] [blame] | 293 | LOGMSG(l_INFO, "Launched new process, pid: %d, (%d/%d)", fuzzer.pid, fuzz_numOfProc(hfuzz), |
| 294 | hfuzz->threadsMax); |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 295 | |
| 296 | arch_reapChild(hfuzz, &fuzzer); |
| 297 | unlink(fuzzer.fileName); |
robert.swiecki@gmail.com | d4dd4df | 2015-02-18 00:50:12 +0000 | [diff] [blame] | 298 | |
robert.swiecki@gmail.com | cac22fd | 2015-02-19 14:03:28 +0000 | [diff] [blame] | 299 | if (hfuzz->dynFileMethod != _HF_DYNFILE_NONE) { |
robert.swiecki@gmail.com | 41d8e05 | 2015-02-19 01:10:41 +0000 | [diff] [blame] | 300 | while (pthread_mutex_lock(&hfuzz->dynamicFile_mutex)) ; |
robert.swiecki@gmail.com | 90f36e6 | 2015-03-01 15:13:54 +0000 | [diff] [blame] | 301 | |
robert.swiecki | 2a95369 | 2015-03-16 19:33:37 +0000 | [diff] [blame] | 302 | LOGMSG(l_INFO, |
| 303 | "File size (New/Best): %zu/%zu, Perf feedback (instr/branch/block-edge/custom): Best: [%" |
| 304 | PRIu64 ",%" PRIu64 ",%" PRIu64 ",%" PRIu64 "] / New: [%" PRIu64 ",%" PRIu64 ",%" |
| 305 | PRIu64 ",%" PRIu64 "]", fuzzer.dynamicFileSz, hfuzz->dynamicFileBestSz, |
| 306 | hfuzz->branchBestCnt[0], hfuzz->branchBestCnt[1], hfuzz->branchBestCnt[2], |
| 307 | hfuzz->branchBestCnt[3], fuzzer.branchCnt[0], fuzzer.branchCnt[1], |
| 308 | fuzzer.branchCnt[2], fuzzer.branchCnt[3]); |
| 309 | |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 310 | int64_t diff0 = hfuzz->branchBestCnt[0] - fuzzer.branchCnt[0]; |
| 311 | int64_t diff1 = hfuzz->branchBestCnt[1] - fuzzer.branchCnt[1]; |
| 312 | int64_t diff2 = hfuzz->branchBestCnt[2] - fuzzer.branchCnt[2]; |
robert.swiecki | 2a95369 | 2015-03-16 19:33:37 +0000 | [diff] [blame] | 313 | int64_t diff3 = hfuzz->branchBestCnt[3] - fuzzer.branchCnt[3]; |
robert.swiecki | 2590ff7 | 2015-03-11 17:53:33 +0000 | [diff] [blame] | 314 | |
robert.swiecki@gmail.com | e6b1552 | 2015-03-27 00:33:42 +0000 | [diff] [blame] | 315 | if (diff2 < 0) { |
| 316 | diff0 = hfuzz->branchBestCnt[0] = fuzzer.branchCnt[0] = 0; |
| 317 | diff1 = hfuzz->branchBestCnt[1] = fuzzer.branchCnt[1] = 0; |
| 318 | diff3 = hfuzz->branchBestCnt[3] = fuzzer.branchCnt[3] = 0; |
| 319 | } |
| 320 | |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 321 | if (diff0 <= hfuzz->dynamicRegressionCnt && diff1 <= hfuzz->dynamicRegressionCnt |
robert.swiecki | 2a95369 | 2015-03-16 19:33:37 +0000 | [diff] [blame] | 322 | && diff2 <= hfuzz->dynamicRegressionCnt && diff3 <= hfuzz->dynamicRegressionCnt) { |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 323 | |
Jagger | a5a5c7b | 2015-06-28 16:39:46 +0200 | [diff] [blame] | 324 | LOGMSG(l_WARN, |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 325 | "New BEST feedback: File Size (New/Old): %zu/%zu', Perf feedback (Curr, High): %" |
robert.swiecki | 2a95369 | 2015-03-16 19:33:37 +0000 | [diff] [blame] | 326 | PRId64 "/%" PRId64 "/%" PRId64 "/%" PRId64 ",%" PRId64 "/%" PRId64 "/%" PRId64 |
| 327 | "/%" PRId64, fuzzer.dynamicFileSz, hfuzz->dynamicFileBestSz, fuzzer.branchCnt[0], |
| 328 | fuzzer.branchCnt[1], fuzzer.branchCnt[2], fuzzer.branchCnt[3], |
| 329 | hfuzz->branchBestCnt[0], hfuzz->branchBestCnt[1], hfuzz->branchBestCnt[2], |
| 330 | hfuzz->branchBestCnt[3]); |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 331 | |
robert.swiecki@gmail.com | d4dd4df | 2015-02-18 00:50:12 +0000 | [diff] [blame] | 332 | memcpy(hfuzz->dynamicFileBest, fuzzer.dynamicFile, fuzzer.dynamicFileSz); |
robert.swiecki@gmail.com | 90f36e6 | 2015-03-01 15:13:54 +0000 | [diff] [blame] | 333 | |
robert.swiecki@gmail.com | d4dd4df | 2015-02-18 00:50:12 +0000 | [diff] [blame] | 334 | hfuzz->dynamicFileBestSz = fuzzer.dynamicFileSz; |
robert.swiecki@gmail.com | 81e26dc | 2015-03-03 04:26:04 +0000 | [diff] [blame] | 335 | hfuzz->branchBestCnt[0] = |
| 336 | fuzzer.branchCnt[0] > |
| 337 | hfuzz->branchBestCnt[0] ? fuzzer.branchCnt[0] : hfuzz->branchBestCnt[0]; |
| 338 | hfuzz->branchBestCnt[1] = |
| 339 | fuzzer.branchCnt[1] > |
| 340 | hfuzz->branchBestCnt[1] ? fuzzer.branchCnt[1] : hfuzz->branchBestCnt[1]; |
| 341 | hfuzz->branchBestCnt[2] = |
| 342 | fuzzer.branchCnt[2] > |
| 343 | hfuzz->branchBestCnt[2] ? fuzzer.branchCnt[2] : hfuzz->branchBestCnt[2]; |
robert.swiecki | 2a95369 | 2015-03-16 19:33:37 +0000 | [diff] [blame] | 344 | hfuzz->branchBestCnt[3] = |
| 345 | fuzzer.branchCnt[3] > |
| 346 | hfuzz->branchBestCnt[3] ? fuzzer.branchCnt[3] : hfuzz->branchBestCnt[3]; |
robert.swiecki@gmail.com | 85a0a95 | 2015-02-19 01:58:39 +0000 | [diff] [blame] | 347 | |
robert.swiecki@gmail.com | ba92e19 | 2015-02-21 02:14:07 +0000 | [diff] [blame] | 348 | #define _HF_CURRENT_BEST "CURRENT_BEST" |
| 349 | #define _HF_CURRENT_BEST_TMP ".tmp.CURRENT_BEST" |
robert.swiecki@gmail.com | f3fbf03 | 2015-03-01 01:52:11 +0000 | [diff] [blame] | 350 | if (files_writeBufToFile |
robert.swiecki@gmail.com | 62e34ae | 2015-03-05 03:39:32 +0000 | [diff] [blame] | 351 | (_HF_CURRENT_BEST_TMP, fuzzer.dynamicFile, fuzzer.dynamicFileSz, |
| 352 | O_WRONLY | O_CREAT | O_TRUNC)) { |
robert.swiecki@gmail.com | f3fbf03 | 2015-03-01 01:52:11 +0000 | [diff] [blame] | 353 | rename(_HF_CURRENT_BEST_TMP, _HF_CURRENT_BEST); |
robert.swiecki@gmail.com | ba92e19 | 2015-02-21 02:14:07 +0000 | [diff] [blame] | 354 | } |
robert.swiecki@gmail.com | d4dd4df | 2015-02-18 00:50:12 +0000 | [diff] [blame] | 355 | } |
robert.swiecki@gmail.com | 41d8e05 | 2015-02-19 01:10:41 +0000 | [diff] [blame] | 356 | while (pthread_mutex_unlock(&hfuzz->dynamicFile_mutex)) ; |
robert.swiecki@gmail.com | d4dd4df | 2015-02-18 00:50:12 +0000 | [diff] [blame] | 357 | } |
| 358 | |
robert.swiecki@gmail.com | e7190b9 | 2015-02-14 23:05:42 +0000 | [diff] [blame] | 359 | report_Report(hfuzz, fuzzer.report); |
robert.swiecki@gmail.com | 441089a | 2015-02-23 13:14:07 +0000 | [diff] [blame] | 360 | free(fuzzer.dynamicFile); |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 361 | |
robert.swiecki@gmail.com | 9bc725e | 2015-02-13 12:40:06 +0000 | [diff] [blame] | 362 | sem_post(hfuzz->sem); |
robert.swiecki@gmail.com | 882900b | 2015-02-11 13:56:22 +0000 | [diff] [blame] | 363 | |
| 364 | return NULL; |
| 365 | } |
| 366 | |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 367 | static void fuzz_runThread(honggfuzz_t * hfuzz, void *(*thread) (void *)) |
| 368 | { |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 369 | pthread_attr_t attr; |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 370 | |
robert.swiecki@gmail.com | 6f5c239 | 2015-02-16 18:13:09 +0000 | [diff] [blame] | 371 | pthread_attr_init(&attr); |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 372 | pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
robert.swiecki@gmail.com | 441089a | 2015-02-23 13:14:07 +0000 | [diff] [blame] | 373 | pthread_attr_setstacksize(&attr, _HF_PTHREAD_STACKSIZE); |
robert.swiecki@gmail.com | 011981f | 2015-02-17 19:06:44 +0000 | [diff] [blame] | 374 | pthread_attr_setguardsize(&attr, (size_t) sysconf(_SC_PAGESIZE)); |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 375 | |
robert.swiecki@gmail.com | 01b6dd4 | 2015-02-16 18:11:28 +0000 | [diff] [blame] | 376 | pthread_t t; |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 377 | if (pthread_create(&t, &attr, thread, (void *)hfuzz) < 0) { |
| 378 | LOGMSG_P(l_FATAL, "Couldn't create a new thread"); |
| 379 | } |
| 380 | |
| 381 | return; |
| 382 | } |
| 383 | |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 384 | void fuzz_main(honggfuzz_t * hfuzz) |
| 385 | { |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 386 | struct sigaction sa = { |
robert.swiecki@gmail.com | 7729450 | 2015-04-23 15:41:15 +0000 | [diff] [blame] | 387 | .sa_sigaction = fuzz_sigHandler, |
| 388 | .sa_flags = SA_SIGINFO, |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 389 | }; |
| 390 | sigemptyset(&sa.sa_mask); |
| 391 | if (sigaction(SIGTERM, &sa, NULL) == -1) { |
| 392 | LOGMSG(l_FATAL, "sigaction(SIGTERM) failed"); |
| 393 | } |
| 394 | if (sigaction(SIGINT, &sa, NULL) == -1) { |
robert.swiecki@gmail.com | 92fe8cd | 2015-04-25 01:33:33 +0000 | [diff] [blame] | 395 | LOGMSG(l_FATAL, "sigaction(SIGINT) failed"); |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 396 | } |
| 397 | if (sigaction(SIGQUIT, &sa, NULL) == -1) { |
robert.swiecki@gmail.com | 92fe8cd | 2015-04-25 01:33:33 +0000 | [diff] [blame] | 398 | LOGMSG(l_FATAL, "sigaction(SIGQUIT) failed"); |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 399 | } |
| 400 | |
Anestis Bechtsoudis | c1f6faa | 2015-07-31 05:32:19 +0300 | [diff] [blame] | 401 | // Android doesn't support named semaphores |
| 402 | #if !defined(__ANDROID__) |
tlogic@gmail.com | 479f0f9 | 2015-04-15 18:03:16 +0000 | [diff] [blame] | 403 | /* |
| 404 | * In OS X semName cannot exceed SEM_NAME_LEN characters otherwise |
| 405 | * sem_open() will fail with ENAMETOOLONG. Apple, doesn't define |
| 406 | * SEM_NAME_LEN in any header file so we define it here using the value |
| 407 | * of PSEMNAMLEN from bsd/kern/posix_sem.c. |
| 408 | */ |
robert.swiecki@gmail.com | df28694 | 2015-04-15 21:45:25 +0000 | [diff] [blame] | 409 | #define _HF_SEM_NAME_LEN 31 |
| 410 | char semName[_HF_SEM_NAME_LEN]; |
| 411 | snprintf(semName, sizeof(semName), "/hgfz.%d.%" PRIx64, getpid(), util_rndGet(1, 1ULL << 62)); |
robert.swiecki@gmail.com | 9bc725e | 2015-02-13 12:40:06 +0000 | [diff] [blame] | 412 | |
robert.swiecki@gmail.com | 757ee19 | 2015-02-13 16:54:02 +0000 | [diff] [blame] | 413 | hfuzz->sem = sem_open(semName, O_CREAT, 0644, hfuzz->threadsMax); |
Anestis Bechtsoudis | c1f6faa | 2015-07-31 05:32:19 +0300 | [diff] [blame] | 414 | |
| 415 | #else /* !defined(__ANDROID__) */ |
| 416 | sem_t semName; |
| 417 | if (sem_init(&semName, 1, hfuzz->threadsMax)) { |
| 418 | LOGMSG(l_FATAL, "sem_init() failed"); |
| 419 | } |
| 420 | hfuzz->sem = &semName; |
| 421 | #endif /* defined(__ANDROID__) */ |
Anestis Bechtsoudis | cfc39fb | 2015-08-06 10:31:36 +0300 | [diff] [blame^] | 422 | |
robert.swiecki@gmail.com | 9bc725e | 2015-02-13 12:40:06 +0000 | [diff] [blame] | 423 | if (hfuzz->sem == SEM_FAILED) { |
| 424 | LOGMSG_P(l_FATAL, "sem_open() failed"); |
robert.swiecki@gmail.com | e763539 | 2015-02-11 16:17:49 +0000 | [diff] [blame] | 425 | } |
robert.swiecki@gmail.com | e468320 | 2015-04-02 00:10:52 +0000 | [diff] [blame] | 426 | |
robert.swiecki@gmail.com | 956276a | 2015-04-16 16:51:52 +0000 | [diff] [blame] | 427 | if (!arch_archInit(hfuzz)) { |
| 428 | LOGMSG(l_FATAL, "Couldn't prepare arch for fuzzing"); |
robert.swiecki@gmail.com | ef829fa | 2011-06-22 13:51:57 +0000 | [diff] [blame] | 429 | } |
| 430 | |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 431 | for (;;) { |
robert.swiecki@gmail.com | cf4e8d0 | 2015-04-23 15:53:39 +0000 | [diff] [blame] | 432 | if (fuzz_sigReceived > 0) { |
robert.swiecki@gmail.com | 587bed7 | 2015-04-23 15:46:24 +0000 | [diff] [blame] | 433 | break; |
| 434 | } |
robert.swiecki@gmail.com | 9bc725e | 2015-02-13 12:40:06 +0000 | [diff] [blame] | 435 | if (sem_wait(hfuzz->sem) == -1) { |
robert.swiecki@gmail.com | 587bed7 | 2015-04-23 15:46:24 +0000 | [diff] [blame] | 436 | if (errno == EINTR) { |
robert.swiecki@gmail.com | cf4e8d0 | 2015-04-23 15:53:39 +0000 | [diff] [blame] | 437 | continue; |
robert.swiecki@gmail.com | 587bed7 | 2015-04-23 15:46:24 +0000 | [diff] [blame] | 438 | } |
robert.swiecki@gmail.com | e507cb6 | 2015-02-11 17:14:49 +0000 | [diff] [blame] | 439 | LOGMSG_P(l_FATAL, "sem_wait() failed"); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 440 | } |
robert.swiecki@gmail.com | e507cb6 | 2015-02-11 17:14:49 +0000 | [diff] [blame] | 441 | |
| 442 | if (hfuzz->mutationsMax && (hfuzz->mutationsCnt >= hfuzz->mutationsMax)) { |
robert.swiecki@gmail.com | 8906855 | 2015-02-28 05:18:25 +0000 | [diff] [blame] | 443 | #if defined(_HF_ARCH_DARWIN) |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 444 | /* |
robert.swiecki@gmail.com | 3b630b4 | 2015-02-16 10:53:53 +0000 | [diff] [blame] | 445 | * Sleep a bit to let any running fuzzers terminate |
robert.swiecki@gmail.com | 772b33d | 2015-02-14 20:35:00 +0000 | [diff] [blame] | 446 | */ |
groebert@google.com | 20e368f | 2015-02-13 14:19:25 +0000 | [diff] [blame] | 447 | usleep(1.2 * hfuzz->tmOut * 1000000); |
robert.swiecki@gmail.com | 8906855 | 2015-02-28 05:18:25 +0000 | [diff] [blame] | 448 | #else /* defined(_HF_ARCH_DARWIN) */ |
| 449 | while (fuzz_numOfProc(hfuzz) > 1) { |
robert.swiecki@gmail.com | c1fdcfb | 2015-02-28 05:26:38 +0000 | [diff] [blame] | 450 | usleep(10000); |
robert.swiecki@gmail.com | 8906855 | 2015-02-28 05:18:25 +0000 | [diff] [blame] | 451 | } |
Anestis Bechtsoudis | c1f6faa | 2015-07-31 05:32:19 +0300 | [diff] [blame] | 452 | #endif /* !defined(_HF_ARCH_DARWIN) */ |
robert.swiecki@gmail.com | e507cb6 | 2015-02-11 17:14:49 +0000 | [diff] [blame] | 453 | LOGMSG(l_INFO, "Finished fuzzing %ld times.", hfuzz->mutationsMax); |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 454 | break; |
robert.swiecki@gmail.com | e507cb6 | 2015-02-11 17:14:49 +0000 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | hfuzz->mutationsCnt++; |
robert.swiecki@gmail.com | c844314 | 2015-02-13 13:46:40 +0000 | [diff] [blame] | 458 | fuzz_runThread(hfuzz, fuzz_threadNew); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 459 | } |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 460 | |
Anestis Bechtsoudis | c1f6faa | 2015-07-31 05:32:19 +0300 | [diff] [blame] | 461 | #ifdef __ANDROID__ |
| 462 | sem_destroy(&semName); |
| 463 | #else |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 464 | sem_unlink(semName); |
Anestis Bechtsoudis | c1f6faa | 2015-07-31 05:32:19 +0300 | [diff] [blame] | 465 | #endif |
robert.swiecki@gmail.com | cf4e8d0 | 2015-04-23 15:53:39 +0000 | [diff] [blame] | 466 | |
| 467 | if (fuzz_sigReceived > 0) { |
robert.swiecki@gmail.com | 92fe8cd | 2015-04-25 01:33:33 +0000 | [diff] [blame] | 468 | LOGMSG(l_INFO, "Signal %d received, terminating", fuzz_sigReceived); |
robert.swiecki@gmail.com | cf4e8d0 | 2015-04-23 15:53:39 +0000 | [diff] [blame] | 469 | signal(SIGTERM, SIG_DFL); |
| 470 | signal(SIGINT, SIG_DFL); |
| 471 | signal(SIGQUIT, SIG_DFL); |
| 472 | raise(fuzz_sigReceived); |
| 473 | } |
robert.swiecki@gmail.com | 9c77bb1 | 2015-04-23 15:35:28 +0000 | [diff] [blame] | 474 | exit(EXIT_SUCCESS); |
robert.swiecki | 3bb518c | 2010-10-14 00:48:24 +0000 | [diff] [blame] | 475 | } |