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/*
* dga.c
*
* Copyright (C) 2019-20 - ntop.org
*
* nDPI is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nDPI is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with nDPI. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdint.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <ndpi_api.h>
#include <ndpi_main.h>
#include <ndpi_typedefs.h>
#include "ndpi_config.h"
void help() {
printf("dga_evaluate <file name> [<verbose>]\n");
exit(0);
}
/* *********************************************** */
static int verbose_dga_detection = 0;
static void ndpi_dbg_fn(u_int16_t protocol,
struct ndpi_detection_module_struct *module_struct,
ndpi_log_level_t log_level, const char *file,
const char *func, unsigned line,
const char *format, ...)
{
assert(protocol == NDPI_PROTOCOL_UNKNOWN);
assert(module_struct != NULL);
/* While this program always logs at NDPI_LOG_DEBUG_EXTRA level, the
initialization of the library may log at any level */
(void)log_level;
(void)file;
(void)func;
(void)line;
if (verbose_dga_detection) {
va_list vl;
va_start(vl, format);
vprintf(format, vl);
va_end(vl);
}
}
int main(int argc, char **argv) {
FILE *fd;
char buffer[512];
int verbose = 0;
int num_detections = 0;
if(argc < 2) help();
fd = fopen(argv[1], "r");
if(fd == NULL) {
printf("Unable to open file %s\n", argv[1]);
exit(0);
}
if(argv[2] != NULL) {
verbose = 1;
if(argv[3] != NULL)
verbose_dga_detection = 1;
}
if (ndpi_get_api_version() != NDPI_API_VERSION) {
printf("nDPI Library version mismatch: please make sure this code and the nDPI library are in sync\n");
return -1;
}
/* Initialize nDPI detection module*/
NDPI_PROTOCOL_BITMASK all;
struct ndpi_detection_module_struct *ndpi_str = ndpi_init_detection_module(NULL);
assert(ndpi_str != NULL);
NDPI_BITMASK_SET_ALL(all);
ndpi_set_protocol_detection_bitmask2(ndpi_str, &all);
ndpi_set_config(ndpi_str, NULL, "log.level", "3"); /* NDPI_LOG_DEBUG_EXTRA */
set_ndpi_debug_function(ndpi_str, ndpi_dbg_fn);
ndpi_finalize_initialization(ndpi_str);
assert(ndpi_str != NULL);
while(fgets(buffer, sizeof(buffer), fd) != NULL) {
char *hostname = strtok(buffer, "\n");
if(ndpi_check_dga_name(ndpi_str, NULL, hostname, 1, 1)) {
if(verbose)
printf("%10s\t%s\n", "[DGA]", hostname);
num_detections++;
} else {
if(verbose)
printf("%10s\t%s\n", "[NON DGA]", hostname);
}
}
fclose(fd);
ndpi_exit_detection_module(ndpi_str);
printf("%i", num_detections);
return 0;
}
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