mirror of
https://github.com/hashcat/hashcat.git
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221 lines
7.3 KiB
C
221 lines
7.3 KiB
C
/*
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* Main program to benchmark hash functions
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* Part of the xxHash project
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* Copyright (C) 2019-2020 Yann Collet
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* GPL v2 License
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* You can contact the author at:
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* - xxHash homepage: https://www.xxhash.com
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* - xxHash source repository: https://github.com/Cyan4973/xxHash
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*/
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/* === dependencies === */
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#include <stdio.h> /* printf */
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#include <limits.h> /* INT_MAX */
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#include "bhDisplay.h" /* bench_x */
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/* === defines list of hashes `hashCandidates` and NB_HASHES *** */
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#include "hashes.h"
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/* === parse command line === */
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#undef NDEBUG
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#include <assert.h>
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/*!
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* readIntFromChar():
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* Allows and interprets K, KB, KiB, M, MB and MiB suffix.
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* Will also modify `*stringPtr`, advancing it to position where it stopped reading.
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*/
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static int readIntFromChar(const char** stringPtr)
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{
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static int const max = (INT_MAX / 10) - 1;
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int result = 0;
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while ((**stringPtr >='0') && (**stringPtr <='9')) {
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assert(result < max);
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result *= 10;
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result += (unsigned)(**stringPtr - '0');
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(*stringPtr)++ ;
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}
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if ((**stringPtr=='K') || (**stringPtr=='M')) {
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int const maxK = INT_MAX >> 10;
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assert(result < maxK);
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result <<= 10;
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if (**stringPtr=='M') {
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assert(result < maxK);
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result <<= 10;
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}
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(*stringPtr)++; /* skip `K` or `M` */
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if (**stringPtr=='i') (*stringPtr)++;
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if (**stringPtr=='B') (*stringPtr)++;
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}
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return result;
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}
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/**
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* longCommand():
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* Checks if string is the same as longCommand.
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* If yes, @return 1, otherwise @return 0
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*/
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static int isCommand(const char* string, const char* longCommand)
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{
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assert(string);
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assert(longCommand);
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size_t const comSize = strlen(longCommand);
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return !strncmp(string, longCommand, comSize);
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}
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/*
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* longCommandWArg():
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* Checks if *stringPtr is the same as longCommand.
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* If yes, @return 1 and advances *stringPtr to the position which immediately
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* follows longCommand.
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* @return 0 and doesn't modify *stringPtr otherwise.
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*/
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static int longCommandWArg(const char** stringPtr, const char* longCommand)
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{
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assert(stringPtr);
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assert(longCommand);
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size_t const comSize = strlen(longCommand);
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int const result = isCommand(*stringPtr, longCommand);
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if (result) *stringPtr += comSize;
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return result;
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}
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/* === default values - can be redefined at compilation time === */
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#ifndef SMALL_SIZE_MIN_DEFAULT
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# define SMALL_SIZE_MIN_DEFAULT 1
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#endif
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#ifndef SMALL_SIZE_MAX_DEFAULT
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# define SMALL_SIZE_MAX_DEFAULT 127
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#endif
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#ifndef LARGE_SIZELOG_MIN_DEFAULT
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# define LARGE_SIZELOG_MIN_DEFAULT 9
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#endif
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#ifndef LARGE_SIZELOG_MAX_DEFAULT
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# define LARGE_SIZELOG_MAX_DEFAULT 27
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#endif
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static int display_hash_names(void)
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{
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int i;
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printf("available hashes : \n");
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for (i=0; i<NB_HASHES; i++) {
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printf("%s, ", hashCandidates[i].name);
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}
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printf("\b\b \n");
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return 0;
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}
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/*
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* @return: hashID (necessarily between 0 and NB_HASHES) if present
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* -1 on error (hname not present)
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*/
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static int hashID(const char* hname)
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{
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int id;
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assert(hname);
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for (id=0; id < NB_HASHES; id++) {
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assert(hashCandidates[id].name);
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if (strlen(hname) != strlen(hashCandidates[id].name)) continue;
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if (isCommand(hname, hashCandidates[id].name)) return id;
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}
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return -1;
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}
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static int help(const char* exename)
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{
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printf("Usage: %s [options]... [hash]\n", exename);
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printf("Runs various benchmarks at various lengths for the listed hash functions\n");
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printf("and outputs them in a CSV format.\n\n");
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printf("Options: \n");
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printf(" --list Name available hash algorithms and exit \n");
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printf(" --mins=LEN Starting length for small size bench (default: %i) \n", SMALL_SIZE_MIN_DEFAULT);
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printf(" --maxs=LEN End length for small size bench (default: %i) \n", SMALL_SIZE_MAX_DEFAULT);
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printf(" --minl=LEN Starting log2(length) for large size bench (default: %i) \n", LARGE_SIZELOG_MIN_DEFAULT);
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printf(" --maxl=LEN End log2(length) for large size bench (default: %i) \n", LARGE_SIZELOG_MAX_DEFAULT);
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printf(" [hash] Optional, bench all available hashes if not provided \n");
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return 0;
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}
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static int badusage(const char* exename)
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{
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printf("Bad command ... \n");
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help(exename);
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return 1;
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}
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int main(int argc, const char** argv)
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{
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const char* const exename = argv[0];
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int hashNb = 0;
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int nb_h_test = NB_HASHES;
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int largeTest_log_min = LARGE_SIZELOG_MIN_DEFAULT;
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int largeTest_log_max = LARGE_SIZELOG_MAX_DEFAULT;
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size_t smallTest_size_min = SMALL_SIZE_MIN_DEFAULT;
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size_t smallTest_size_max = SMALL_SIZE_MAX_DEFAULT;
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int arg_nb;
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for (arg_nb = 1; arg_nb < argc; arg_nb++) {
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const char** arg = argv + arg_nb;
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if (isCommand(*arg, "-h")) { assert(argc >= 1); return help(exename); }
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if (isCommand(*arg, "--list")) { return display_hash_names(); }
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if (longCommandWArg(arg, "--n=")) { nb_h_test = readIntFromChar(arg); continue; } /* hidden command */
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if (longCommandWArg(arg, "--minl=")) { largeTest_log_min = readIntFromChar(arg); continue; }
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if (longCommandWArg(arg, "--maxl=")) { largeTest_log_max = readIntFromChar(arg); continue; }
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if (longCommandWArg(arg, "--mins=")) { smallTest_size_min = (size_t)readIntFromChar(arg); continue; }
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if (longCommandWArg(arg, "--maxs=")) { smallTest_size_max = (size_t)readIntFromChar(arg); continue; }
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/* not a command: must be a hash name */
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hashNb = hashID(*arg);
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if (hashNb >= 0) {
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nb_h_test = 1;
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} else {
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/* not a hash name: error */
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return badusage(exename);
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}
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}
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/* border case (requires (mis)using hidden command `--n=#`) */
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if (hashNb + nb_h_test > NB_HASHES) {
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printf("wrong hash selection \n");
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return 1;
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}
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printf(" === benchmarking %i hash functions === \n", nb_h_test);
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if (largeTest_log_max >= largeTest_log_min) {
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bench_largeInput(hashCandidates+hashNb, nb_h_test, largeTest_log_min, largeTest_log_max);
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}
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if (smallTest_size_max >= smallTest_size_min) {
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bench_throughput_smallInputs(hashCandidates+hashNb, nb_h_test, smallTest_size_min, smallTest_size_max);
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bench_throughput_randomInputLength(hashCandidates+hashNb, nb_h_test, smallTest_size_min, smallTest_size_max);
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bench_latency_smallInputs(hashCandidates+hashNb, nb_h_test, smallTest_size_min, smallTest_size_max);
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bench_latency_randomInputLength(hashCandidates+hashNb, nb_h_test, smallTest_size_min, smallTest_size_max);
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}
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return 0;
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}
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