| /* |
| |
| honggfuzz - cmdline parsing |
| |
| ----------------------------------------- |
| |
| Copyright 2014 Google Inc. All Rights Reserved. |
| |
| 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. |
| |
| */ |
| |
| #include "cmdline.h" |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <getopt.h> |
| #include <inttypes.h> |
| #include <limits.h> |
| #if defined(_HF_ARCH_LINUX) |
| #include <sched.h> |
| #endif /* defined(_HF_ARCH_LINUX) */ |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/queue.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include "libcommon/common.h" |
| #include "libcommon/files.h" |
| #include "libcommon/log.h" |
| #include "libcommon/util.h" |
| |
| struct custom_option { |
| struct option opt; |
| const char* descr; |
| }; |
| |
| static bool checkFor_FILE_PLACEHOLDER(const char* const* args) { |
| for (int x = 0; args[x]; x++) { |
| if (strstr(args[x], _HF_FILE_PLACEHOLDER)) return true; |
| } |
| return false; |
| } |
| |
| static const char* cmdlineYesNo(bool yes) { return (yes ? "true" : "false"); } |
| |
| static void cmdlineHelp(const char* pname, struct custom_option* opts) { |
| LOG_HELP_BOLD("Usage: %s [options] -- path_to_command [args]", pname); |
| LOG_HELP_BOLD("Options:"); |
| for (int i = 0; opts[i].opt.name; i++) { |
| if (isprint(opts[i].opt.val) && opts[i].opt.val < 0x80) { |
| LOG_HELP_BOLD(" --%s%s%c %s", opts[i].opt.name, "|-", opts[i].opt.val, |
| opts[i].opt.has_arg == required_argument ? "VALUE" : ""); |
| } else { |
| LOG_HELP_BOLD(" --%s %s", opts[i].opt.name, |
| opts[i].opt.has_arg == required_argument ? "VALUE" : ""); |
| } |
| LOG_HELP("\t%s", opts[i].descr); |
| } |
| LOG_HELP_BOLD("\nExamples:"); |
| LOG_HELP( |
| " Run the binary over a mutated file chosen from the directory. Disable fuzzing " |
| "feedback (dry/static mode)"); |
| LOG_HELP_BOLD(" " PROG_NAME " -f input_dir -x -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| LOG_HELP(" As above, provide input over STDIN:"); |
| LOG_HELP_BOLD(" " PROG_NAME " -f input_dir -x -s -- /usr/bin/djpeg"); |
| LOG_HELP(" Use compile-time instrumentation (libhfuzz/instrument.c):"); |
| LOG_HELP_BOLD(" " PROG_NAME " -f input_dir -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| LOG_HELP(" Use SANCOV instrumentation:"); |
| LOG_HELP_BOLD(" " PROG_NAME " -f input_dir -C -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| LOG_HELP(" Use persistent mode (libhfuzz/persistent.c) w/o instrumentation:"); |
| LOG_HELP_BOLD(" " PROG_NAME " -f input_dir -P -x -- /usr/bin/djpeg_persistent_mode"); |
| LOG_HELP(" Use persistent mode (libhfuzz/persistent.c) and compile-time instrumentation:"); |
| LOG_HELP_BOLD(" " PROG_NAME " -f input_dir -P -- /usr/bin/djpeg_persistent_mode"); |
| #if defined(_HF_ARCH_LINUX) |
| LOG_HELP( |
| " Run the binary with dynamically generate inputs, maximize total no. of instructions:"); |
| LOG_HELP_BOLD(" " PROG_NAME " --linux_perf_instr -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| LOG_HELP(" As above, maximize total no. of branches:"); |
| LOG_HELP_BOLD(" " PROG_NAME " --linux_perf_branch -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| LOG_HELP(" As above, maximize unique branches (edges) via Intel BTS:"); |
| LOG_HELP_BOLD(" " PROG_NAME " --linux_perf_bts_edge -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| LOG_HELP( |
| " As above, maximize unique code blocks via Intel Processor Trace (requires libipt.so):"); |
| LOG_HELP_BOLD(" " PROG_NAME " --linux_perf_ipt_block -- /usr/bin/djpeg " _HF_FILE_PLACEHOLDER); |
| #endif /* defined(_HF_ARCH_LINUX) */ |
| } |
| |
| static void cmdlineUsage(const char* pname, struct custom_option* opts) { |
| cmdlineHelp(pname, opts); |
| exit(0); |
| } |
| |
| rlim_t cmdlineParseRLimit(int res, const char* optarg, unsigned long mul) { |
| struct rlimit cur; |
| if (getrlimit(res, &cur) == -1) { |
| PLOG_F("getrlimit(%d)", res); |
| } |
| if (strcasecmp(optarg, "max") == 0) { |
| return cur.rlim_max; |
| } |
| if (strcasecmp(optarg, "def") == 0) { |
| return cur.rlim_cur; |
| } |
| if (util_isANumber(optarg) == false) { |
| LOG_F("RLIMIT %d needs a numeric or 'max'/'def' value ('%s' provided)", res, optarg); |
| } |
| rlim_t val = strtoul(optarg, NULL, 0) * mul; |
| if ((unsigned long)val == ULONG_MAX && errno != 0) { |
| PLOG_F("strtoul('%s', 0)", optarg); |
| } |
| return val; |
| } |
| |
| static bool cmdlineVerify(honggfuzz_t* hfuzz) { |
| if (!hfuzz->exe.fuzzStdin && !hfuzz->persistent && |
| !checkFor_FILE_PLACEHOLDER(hfuzz->exe.cmdline)) { |
| LOG_E("You must specify '" _HF_FILE_PLACEHOLDER |
| "' when the -s (stdin fuzzing) or --persistent options are not set"); |
| return false; |
| } |
| |
| if (hfuzz->exe.fuzzStdin && hfuzz->persistent) { |
| LOG_E( |
| "Stdin fuzzing (-s) and persistent fuzzing (-P) cannot be specified at the same time"); |
| return false; |
| } |
| |
| if (hfuzz->threads.threadsMax >= _HF_THREAD_MAX) { |
| LOG_E("Too many fuzzing threads specified %zu (>= _HF_THREAD_MAX (%u))", |
| hfuzz->threads.threadsMax, _HF_THREAD_MAX); |
| return false; |
| } |
| |
| if (strchr(hfuzz->io.fileExtn, '/')) { |
| LOG_E("The file extension contains the '/' character: '%s'", hfuzz->io.fileExtn); |
| return false; |
| } |
| |
| if (hfuzz->io.workDir == NULL) { |
| hfuzz->io.workDir = "."; |
| } |
| if (mkdir(hfuzz->io.workDir, 0700) == -1 && errno != EEXIST) { |
| PLOG_E("Couldn't create the workspace directory '%s'", hfuzz->io.workDir); |
| return false; |
| } |
| if (hfuzz->io.crashDir == NULL) { |
| hfuzz->io.crashDir = hfuzz->io.workDir; |
| } |
| if (mkdir(hfuzz->io.crashDir, 0700) && errno != EEXIST) { |
| PLOG_E("Couldn't create the crash directory '%s'", hfuzz->io.crashDir); |
| return false; |
| } |
| |
| if (hfuzz->linux.pid > 0 || hfuzz->linux.pidFile) { |
| LOG_I("PID=%d specified, lowering maximum number of concurrent threads to 1", |
| hfuzz->linux.pid); |
| hfuzz->threads.threadsMax = 1; |
| } |
| |
| if (hfuzz->mutationsPerRun == 0U && hfuzz->useVerifier) { |
| LOG_I("Verifier enabled with mutationsPerRun == 0, activating the dry run mode"); |
| } |
| |
| /* |
| * 'enableSanitizers' can be auto enabled when 'useSanCov', although it's probably |
| * better to let user know about the features that each flag control. |
| */ |
| if (hfuzz->useSanCov == true && hfuzz->enableSanitizers == false) { |
| LOG_E("Sanitizer coverage cannot be used without enabling sanitizers '-S/--sanitizers'"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool cmdlineParse(int argc, char* argv[], honggfuzz_t* hfuzz) { |
| honggfuzz_t tmp = { |
| .io = |
| { |
| .inputDir = NULL, |
| .inputDirPtr = NULL, |
| .fileCnt = 0, |
| .fileCntDone = false, |
| .fileExtn = "fuzz", |
| .workDir = NULL, |
| .crashDir = NULL, |
| .covDirAll = NULL, |
| .covDirNew = NULL, |
| .saveUnique = true, |
| }, |
| .exe = |
| { |
| .cmdline = NULL, |
| .nullifyStdio = true, |
| .fuzzStdin = false, |
| .externalCommand = NULL, |
| .postExternalCommand = NULL, |
| .asLimit = 0U, |
| .rssLimit = 0U, |
| .dataLimit = 0U, |
| .clearEnv = false, |
| .envs[0] = NULL, |
| }, |
| .timing = |
| { |
| .timeStart = time(NULL), |
| .runEndTime = 0, |
| .tmOut = 10, |
| .tmoutVTALRM = false, |
| }, |
| .cmdline_txt[0] = '\0', |
| .useScreen = true, |
| .useVerifier = false, |
| .mutationsPerRun = 6U, |
| .blacklistFile = NULL, |
| .blacklistCnt = 0, |
| .blacklist = NULL, |
| .maxFileSz = 0UL, |
| .mutationsMax = 0, |
| .reportFile = NULL, |
| .persistent = false, |
| .skipFeedbackOnTimeout = false, |
| .enableSanitizers = false, |
| #if defined(__ANDROID__) |
| .monitorSIGABRT = false, |
| #else |
| .monitorSIGABRT = true, |
| #endif |
| .exitUponCrash = false, |
| |
| .threads = |
| { |
| .threadsFinished = 0, |
| .threadsMax = |
| (sysconf(_SC_NPROCESSORS_ONLN) <= 1) ? 1 : sysconf(_SC_NPROCESSORS_ONLN) / 2, |
| .threadsActiveCnt = 0, |
| .mainThread = pthread_self(), |
| .mainPid = getpid(), |
| }, |
| |
| .dictionaryFile = NULL, |
| .dictionaryCnt = 0, |
| .dictqCurrent = NULL, |
| |
| .state = _HF_STATE_UNSET, |
| .feedback = NULL, |
| .bbFd = -1, |
| |
| .dynfileqCnt = 0U, |
| .dynfileq_mutex = PTHREAD_RWLOCK_INITIALIZER, |
| |
| .feedback_mutex = PTHREAD_MUTEX_INITIALIZER, |
| |
| .cnts = |
| { |
| .mutationsCnt = 0, |
| .crashesCnt = 0, |
| .uniqueCrashesCnt = 0, |
| .verifiedCrashesCnt = 0, |
| .blCrashesCnt = 0, |
| .timeoutedCnt = 0, |
| }, |
| |
| .dynFileMethod = _HF_DYNFILE_SOFT, |
| .sanCovCnts = |
| { |
| .hitBBCnt = 0ULL, |
| .totalBBCnt = 0ULL, |
| .dsoCnt = 0ULL, |
| .iDsoCnt = 0ULL, |
| .newBBCnt = 0ULL, |
| .crashesCnt = 0ULL, |
| }, |
| |
| .sanCov_mutex = PTHREAD_MUTEX_INITIALIZER, |
| .sanOpts = |
| { |
| .asanOpts = NULL, |
| .msanOpts = NULL, |
| .ubsanOpts = NULL, |
| }, |
| .useSanCov = false, |
| .covMetadata = NULL, |
| |
| .report_mutex = PTHREAD_MUTEX_INITIALIZER, |
| |
| /* Linux code */ |
| .linux = |
| { |
| .exeFd = -1, |
| .hwCnts = |
| { |
| .cpuInstrCnt = 0ULL, |
| .cpuBranchCnt = 0ULL, |
| .bbCnt = 0ULL, |
| .newBBCnt = 0ULL, |
| .softCntPc = 0ULL, |
| .softCntCmp = 0ULL, |
| }, |
| .dynamicCutOffAddr = ~(0ULL), |
| .disableRandomization = true, |
| .ignoreAddr = NULL, |
| .numMajorFrames = 7, |
| .pid = 0, |
| .pidFile = NULL, |
| .pidCmd[0] = '\0', |
| .symsBlFile = NULL, |
| .symsBlCnt = 0, |
| .symsBl = NULL, |
| .symsWlFile = NULL, |
| .symsWlCnt = 0, |
| .symsWl = NULL, |
| .cloneFlags = 0, |
| .kernelOnly = false, |
| .useClone = true, |
| }, |
| }; |
| *hfuzz = tmp; |
| |
| TAILQ_INIT(&hfuzz->dynfileq); |
| TAILQ_INIT(&hfuzz->dictq); |
| |
| // clang-format off |
| struct custom_option custom_opts[] = { |
| { { "help", no_argument, NULL, 'h' }, "Help plz.." }, |
| { { "input", required_argument, NULL, 'f' }, "Path to a directory containing initial file corpus" }, |
| { { "persistent", no_argument, NULL, 'P' }, "Enable persistent fuzzing (use hfuzz_cc/hfuzz-clang to compile code)" }, |
| { { "instrument", no_argument, NULL, 'z' }, "*DEFAULT-MODE-BY-DEFAULT* Enable compile-time instrumentation (use hfuzz_cc/hfuzz-clang to compile code)" }, |
| { { "noinst", no_argument, NULL, 'x' }, "Static mode (dry-mode), disable any instrumentation (hw/sw)" }, |
| { { "sancov", no_argument, NULL, 'C' }, "Enable sanitizer coverage feedback" }, |
| { { "keep_output", no_argument, NULL, 'Q' }, "Don't close children's stdin, stdout, stderr; can be noisy" }, |
| { { "timeout", required_argument, NULL, 't' }, "Timeout in seconds (default: '10')" }, |
| { { "threads", required_argument, NULL, 'n' }, "Number of concurrent fuzzing threads (default: number of CPUs / 2)" }, |
| { { "stdin_input", no_argument, NULL, 's' }, "Provide fuzzing input on STDIN, instead of ___FILE___" }, |
| { { "mutations_per_run", required_argument, NULL, 'r' }, "Maximal number of mutations per one run (default: '6')" }, |
| { { "logfile", required_argument, NULL, 'l' }, "Log file" }, |
| { { "verbose", no_argument, NULL, 'v' }, "Disable ANSI console; use simple log output" }, |
| { { "verifier", no_argument, NULL, 'V' }, "Enable crashes verifier" }, |
| { { "debug_level", required_argument, NULL, 'd' }, "Debug level (0 - FATAL ... 4 - DEBUG), (default: '3' [INFO])" }, |
| { { "extension", required_argument, NULL, 'e' }, "Input file extension (e.g. 'swf'), (default: 'fuzz')" }, |
| { { "workspace", required_argument, NULL, 'W' }, "Workspace directory to save crashes & runtime files (default: '.')" }, |
| { { "crashdir", required_argument, NULL, 0x600 }, "Directory where crashes are saved to (default: workspace directory)" }, |
| { { "covdir_all", required_argument, NULL, 0x601 }, "Coverage is written to a separate directory (default: input directory)" }, |
| { { "covdir_new", required_argument, NULL, 0x602 }, "New coverage (beyond the dry-run fuzzing phase) is written to this separate directory" }, |
| { { "dict", required_argument, NULL, 'w' }, "Dictionary file. Format:http://llvm.org/docs/LibFuzzer.html#dictionaries" }, |
| { { "stackhash_bl", required_argument, NULL, 'B' }, "Stackhashes blacklist file (one entry per line)" }, |
| { { "mutate_cmd", required_argument, NULL, 'c' }, "External command producing fuzz files (instead of internal mutators)" }, |
| { { "pprocess_cmd", required_argument, NULL, 0x104 }, "External command postprocessing files produced by internal mutators" }, |
| { { "run_time", required_argument, NULL, 0x109 }, "Number of seconds this fuzzing session will last (default: '0' [no limit])" }, |
| { { "iterations", required_argument, NULL, 'N' }, "Number of fuzzing iterations (default: '0' [no limit])" }, |
| { { "rlimit_as", required_argument, NULL, 0x100 }, "Per process RLIMIT_AS in MiB (default: '0' [no limit])" }, |
| { { "rlimit_rss", required_argument, NULL, 0x101 }, "Per process RLIMIT_RSS in MiB (default: '0' [no limit])" }, |
| { { "rlimit_data", required_argument, NULL, 0x102 }, "Per process RLIMIT_DATA in MiB (default: '0' [no limit])" }, |
| { { "report", required_argument, NULL, 'R' }, "Write report to this file (default: '" _HF_REPORT_FILE "')" }, |
| { { "max_file_size", required_argument, NULL, 'F' }, "Maximal size of files processed by the fuzzer in bytes (default: '1048576')" }, |
| { { "clear_env", no_argument, NULL, 0x108 }, "Clear all environment variables before executing the binary" }, |
| { { "env", required_argument, NULL, 'E' }, "Pass this environment variable, can be used multiple times" }, |
| { { "save_all", no_argument, NULL, 'u' }, "Save all test-cases (not only the unique ones) by appending the current time-stamp to the filenames" }, |
| { { "tmout_sigvtalrm", no_argument, NULL, 'T' }, "Use SIGVTALRM to kill timeouting processes (default: use SIGKILL)" }, |
| { { "sanitizers", no_argument, NULL, 'S' }, "Enable sanitizers settings (default: false)" }, |
| { { "monitor_sigabrt", required_argument, NULL, 0x105 }, "Monitor SIGABRT (default: 'false for Android - 'true for other platforms)" }, |
| { { "no_fb_timeout", required_argument, NULL, 0x106 }, "Skip feedback if the process has timeouted (default: 'false')" }, |
| { { "exit_upon_crash", no_argument, NULL, 0x107 }, "Exit upon seeing the first crash (default: 'false')" }, |
| |
| #if defined(_HF_ARCH_LINUX) |
| { { "linux_symbols_bl", required_argument, NULL, 0x504 }, "Symbols blacklist filter file (one entry per line)" }, |
| { { "linux_symbols_wl", required_argument, NULL, 0x505 }, "Symbols whitelist filter file (one entry per line)" }, |
| { { "linux_pid", required_argument, NULL, 'p' }, "Attach to a pid (and its thread group)" }, |
| { { "linux_file_pid", required_argument, NULL, 0x502 }, "Attach to pid (and its thread group) read from file" }, |
| { { "linux_addr_low_limit", required_argument, NULL, 0x500 }, "Address limit (from si.si_addr) below which crashes are not reported, (default: '0')" }, |
| { { "linux_keep_aslr", no_argument, NULL, 0x501 }, "Don't disable ASLR randomization, might be useful with MSAN" }, |
| { { "linux_perf_ignore_above", required_argument, NULL, 0x503 }, "Ignore perf events which report IPs above this address" }, |
| { { "linux_perf_instr", no_argument, NULL, 0x510 }, "Use PERF_COUNT_HW_INSTRUCTIONS perf" }, |
| { { "linux_perf_branch", no_argument, NULL, 0x511 }, "Use PERF_COUNT_HW_BRANCH_INSTRUCTIONS perf" }, |
| { { "linux_perf_bts_edge", no_argument, NULL, 0x513 }, "Use Intel BTS to count unique edges" }, |
| { { "linux_perf_ipt_block", no_argument, NULL, 0x514 }, "Use Intel Processor Trace to count unique blocks (requires libipt.so)" }, |
| { { "linux_perf_kernel_only", no_argument, NULL, 0x515 }, "Gather kernel-only coverage with Intel PT and with Intel BTS" }, |
| { { "linux_ns_net", no_argument, NULL, 0x0530 }, "Use Linux NET namespace isolation" }, |
| { { "linux_ns_pid", no_argument, NULL, 0x0531 }, "Use Linux PID namespace isolation" }, |
| { { "linux_ns_ipc", no_argument, NULL, 0x0532 }, "Use Linux IPC namespace isolation" }, |
| #endif // defined(_HF_ARCH_LINUX) |
| { { 0, 0, 0, 0 }, NULL }, |
| }; |
| // clang-format on |
| |
| struct option opts[ARRAYSIZE(custom_opts)]; |
| for (unsigned i = 0; i < ARRAYSIZE(custom_opts); i++) { |
| opts[i] = custom_opts[i].opt; |
| } |
| |
| enum llevel_t ll = INFO; |
| const char* logfile = NULL; |
| int opt_index = 0; |
| for (;;) { |
| int c = getopt_long( |
| argc, argv, "-?hQvVsuPxf:d:e:W:r:c:F:t:R:n:N:l:p:g:E:w:B:CzTS", opts, &opt_index); |
| if (c < 0) break; |
| |
| switch (c) { |
| case 'h': |
| case '?': |
| cmdlineUsage(argv[0], custom_opts); |
| break; |
| case 'f': |
| hfuzz->io.inputDir = optarg; |
| if (hfuzz->io.covDirAll == NULL) { |
| hfuzz->io.covDirAll = optarg; |
| } |
| break; |
| case 'x': |
| hfuzz->dynFileMethod = _HF_DYNFILE_NONE; |
| break; |
| case 'Q': |
| hfuzz->exe.nullifyStdio = false; |
| break; |
| case 'v': |
| hfuzz->useScreen = false; |
| break; |
| case 'V': |
| hfuzz->useVerifier = true; |
| break; |
| case 's': |
| hfuzz->exe.fuzzStdin = true; |
| break; |
| case 'u': |
| hfuzz->io.saveUnique = false; |
| break; |
| case 'l': |
| logfile = optarg; |
| break; |
| case 'd': |
| ll = atoi(optarg); |
| break; |
| case 'e': |
| hfuzz->io.fileExtn = optarg; |
| break; |
| case 'W': |
| hfuzz->io.workDir = optarg; |
| break; |
| case 0x600: |
| hfuzz->io.crashDir = optarg; |
| break; |
| case 0x601: |
| hfuzz->io.covDirAll = optarg; |
| break; |
| case 0x602: |
| hfuzz->io.covDirNew = optarg; |
| break; |
| case 'r': |
| hfuzz->mutationsPerRun = strtoul(optarg, NULL, 10); |
| break; |
| case 'c': |
| hfuzz->exe.externalCommand = optarg; |
| break; |
| case 'C': |
| hfuzz->useSanCov = true; |
| break; |
| case 'S': |
| hfuzz->enableSanitizers = true; |
| break; |
| case 'z': |
| hfuzz->dynFileMethod |= _HF_DYNFILE_SOFT; |
| break; |
| case 'F': |
| hfuzz->maxFileSz = strtoul(optarg, NULL, 0); |
| break; |
| case 't': |
| hfuzz->timing.tmOut = atol(optarg); |
| break; |
| case 'R': |
| hfuzz->reportFile = optarg; |
| break; |
| case 'n': |
| hfuzz->threads.threadsMax = atol(optarg); |
| break; |
| case 0x109: { |
| time_t p = atol(optarg); |
| if (p > 0) { |
| hfuzz->timing.runEndTime = time(NULL) + p; |
| } |
| } break; |
| case 'N': |
| hfuzz->mutationsMax = atol(optarg); |
| break; |
| case 0x100: |
| hfuzz->exe.asLimit = strtoull(optarg, NULL, 0); |
| break; |
| case 0x101: |
| hfuzz->exe.rssLimit = strtoull(optarg, NULL, 0); |
| break; |
| case 0x102: |
| hfuzz->exe.dataLimit = strtoull(optarg, NULL, 0); |
| break; |
| case 0x104: |
| hfuzz->exe.postExternalCommand = optarg; |
| break; |
| case 0x105: |
| if ((strcasecmp(optarg, "0") == 0) || (strcasecmp(optarg, "false") == 0)) { |
| hfuzz->monitorSIGABRT = false; |
| } else { |
| hfuzz->monitorSIGABRT = true; |
| } |
| break; |
| case 0x106: |
| hfuzz->skipFeedbackOnTimeout = true; |
| break; |
| case 0x107: |
| hfuzz->exitUponCrash = true; |
| break; |
| case 0x108: |
| hfuzz->exe.clearEnv = true; |
| break; |
| case 'P': |
| hfuzz->persistent = true; |
| break; |
| case 'T': |
| hfuzz->timing.tmoutVTALRM = true; |
| break; |
| case 'p': |
| if (util_isANumber(optarg) == false) { |
| LOG_E("-p '%s' is not a number", optarg); |
| return false; |
| } |
| hfuzz->linux.pid = atoi(optarg); |
| if (hfuzz->linux.pid < 1) { |
| LOG_E("-p '%d' is invalid", hfuzz->linux.pid); |
| return false; |
| } |
| break; |
| case 0x502: |
| hfuzz->linux.pidFile = optarg; |
| break; |
| case 'E': |
| for (size_t i = 0; i < ARRAYSIZE(hfuzz->exe.envs); i++) { |
| if (hfuzz->exe.envs[i] == NULL) { |
| hfuzz->exe.envs[i] = optarg; |
| break; |
| } |
| } |
| break; |
| case 'w': |
| hfuzz->dictionaryFile = optarg; |
| break; |
| case 'B': |
| hfuzz->blacklistFile = optarg; |
| break; |
| #if defined(_HF_ARCH_LINUX) |
| case 0x500: |
| hfuzz->linux.ignoreAddr = (void*)strtoul(optarg, NULL, 0); |
| break; |
| case 0x501: |
| hfuzz->linux.disableRandomization = false; |
| break; |
| case 0x503: |
| hfuzz->linux.dynamicCutOffAddr = strtoull(optarg, NULL, 0); |
| break; |
| case 0x504: |
| hfuzz->linux.symsBlFile = optarg; |
| break; |
| case 0x505: |
| hfuzz->linux.symsWlFile = optarg; |
| break; |
| case 0x510: |
| hfuzz->dynFileMethod |= _HF_DYNFILE_INSTR_COUNT; |
| break; |
| case 0x511: |
| hfuzz->dynFileMethod |= _HF_DYNFILE_BRANCH_COUNT; |
| break; |
| case 0x513: |
| hfuzz->dynFileMethod |= _HF_DYNFILE_BTS_EDGE; |
| break; |
| case 0x514: |
| hfuzz->dynFileMethod |= _HF_DYNFILE_IPT_BLOCK; |
| break; |
| case 0x515: |
| hfuzz->linux.kernelOnly = true; |
| break; |
| case 0x530: |
| hfuzz->linux.cloneFlags |= (CLONE_NEWUSER | CLONE_NEWNET); |
| break; |
| case 0x531: |
| hfuzz->linux.cloneFlags |= (CLONE_NEWUSER | CLONE_NEWPID); |
| break; |
| case 0x532: |
| hfuzz->linux.cloneFlags |= (CLONE_NEWUSER | CLONE_NEWIPC); |
| break; |
| #endif /* defined(_HF_ARCH_LINUX) */ |
| default: |
| cmdlineUsage(argv[0], custom_opts); |
| return false; |
| break; |
| } |
| } |
| |
| if (!logInitLogFile(logfile, ll)) { |
| return false; |
| } |
| hfuzz->exe.cmdline = (const char* const*)&argv[optind]; |
| if (hfuzz->exe.cmdline[0] == NULL) { |
| LOG_E("No fuzz command provided"); |
| cmdlineUsage(argv[0], custom_opts); |
| return false; |
| } |
| if (!cmdlineVerify(hfuzz)) { |
| return false; |
| } |
| |
| LOG_I( |
| "PID: %d, inputDir '%s', nullifyStdio: %s, fuzzStdin: %s, saveUnique: %s, " |
| "mutationsPerRun: %u, " |
| "externalCommand: '%s', runEndTime: %d tmOut: %ld, mutationsMax: %zu, " |
| "threads.threadsMax: %zu, " |
| "fileExtn: '%s', " |
| "ASLimit: 0x%" PRIx64 "(MiB), RSSLimit: 0x%" PRIx64 ", DATALimit: 0x%" PRIx64 |
| ", fuzzExe: '%s', fuzzedPid: %d, monitorSIGABRT: '%s'", |
| (int)getpid(), hfuzz->io.inputDir, cmdlineYesNo(hfuzz->exe.nullifyStdio), |
| cmdlineYesNo(hfuzz->exe.fuzzStdin), cmdlineYesNo(hfuzz->io.saveUnique), |
| hfuzz->mutationsPerRun, |
| hfuzz->exe.externalCommand == NULL ? "NULL" : hfuzz->exe.externalCommand, |
| (int)hfuzz->timing.runEndTime, hfuzz->timing.tmOut, hfuzz->mutationsMax, |
| hfuzz->threads.threadsMax, hfuzz->io.fileExtn, hfuzz->exe.asLimit, hfuzz->exe.rssLimit, |
| hfuzz->exe.dataLimit, hfuzz->exe.cmdline[0], hfuzz->linux.pid, |
| cmdlineYesNo(hfuzz->monitorSIGABRT)); |
| |
| snprintf(hfuzz->cmdline_txt, sizeof(hfuzz->cmdline_txt), "%s", hfuzz->exe.cmdline[0]); |
| for (size_t i = 1; hfuzz->exe.cmdline[i]; i++) { |
| util_ssnprintf( |
| hfuzz->cmdline_txt, sizeof(hfuzz->cmdline_txt), " %s", hfuzz->exe.cmdline[i]); |
| if (strlen(hfuzz->cmdline_txt) == (sizeof(hfuzz->cmdline_txt) - 1)) { |
| hfuzz->cmdline_txt[sizeof(hfuzz->cmdline_txt) - 5] = ' '; |
| hfuzz->cmdline_txt[sizeof(hfuzz->cmdline_txt) - 4] = '.'; |
| hfuzz->cmdline_txt[sizeof(hfuzz->cmdline_txt) - 3] = '.'; |
| hfuzz->cmdline_txt[sizeof(hfuzz->cmdline_txt) - 2] = '.'; |
| hfuzz->cmdline_txt[sizeof(hfuzz->cmdline_txt) - 1] = '\0'; |
| } |
| } |
| |
| return true; |
| } |
