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nDPI/tests/unit/unit.c
Toni Uhlig c3df3a12aa Fixed msys2 build warnings and re-activated CI Mingw64 build. 
* Removed Visual Studio leftovers. Maintaining an autotools project with VS integration requires some additional overhead.

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
Signed-off-by: lns <matzeton@googlemail.com>
2022-04-14 19:17:48 +02:00

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/*
* unit.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/>.
*
*/
#ifdef linux
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <sched.h>
#endif /* linux */
#ifdef WIN32
#include <winsock2.h>
#include <process.h>
#include <io.h>
#else
#include <getopt.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/mman.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <search.h>
#include <pcap.h>
#include <signal.h>
#include <pthread.h>
#include <assert.h>
#include <math.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libgen.h>
#include "ndpi_config.h"
#include "ndpi_api.h"
#include "ndpi_define.h"
#ifdef HAVE_LIBJSON_C
#include "json.h" /* JSON-C */
#endif
static struct ndpi_detection_module_struct *ndpi_info_mod = NULL;
static int verbose = 0;
/* *********************************************** */
int serializerUnitTest() {
#ifdef HAVE_LIBJSON_C
ndpi_serializer serializer, deserializer;
int i, loop_id;
ndpi_serialization_format fmt = {0};
u_int32_t buffer_len;
char *buffer;
enum json_tokener_error jerr;
json_object *j;
for(loop_id=0; loop_id<3; loop_id++) {
switch(loop_id) {
case 0:
if (verbose) printf("--- TLV test ---\n");
fmt = ndpi_serialization_format_tlv;
break;
case 1:
if (verbose) printf("--- JSON test ---\n");
fmt = ndpi_serialization_format_json;
break;
case 2:
if (verbose) printf("--- CSV test ---\n");
fmt = ndpi_serialization_format_csv;
break;
}
assert(ndpi_init_serializer(&serializer, fmt) != -1);
for(i=0; i<16; i++) {
char kbuf[32], vbuf[32];
ndpi_snprintf(kbuf, sizeof(kbuf), "Key %d", i);
ndpi_snprintf(vbuf, sizeof(vbuf), "Value %d", i);
assert(ndpi_serialize_uint32_uint32(&serializer, i, i*i) != -1);
assert(ndpi_serialize_uint32_string(&serializer, i, "Data") != -1);
assert(ndpi_serialize_string_string(&serializer, kbuf, vbuf) != -1);
assert(ndpi_serialize_string_uint32(&serializer, kbuf, i*i) != -1);
assert(ndpi_serialize_string_float(&serializer, kbuf, (float)(i*i), "%f") != -1);
assert(ndpi_serialize_string_int64(&serializer, kbuf, INT64_MAX) != -1);
if ((i&0x3) == 0x3) ndpi_serialize_end_of_record(&serializer);
}
if (fmt == ndpi_serialization_format_json) {
assert(ndpi_serialize_start_of_list(&serializer, "List") != -1);
for(i=0; i<4; i++) {
char kbuf[32], vbuf[32];
ndpi_snprintf(kbuf, sizeof(kbuf), "Ignored");
ndpi_snprintf(vbuf, sizeof(vbuf), "Item %d", i);
assert(ndpi_serialize_uint32_uint32(&serializer, i, i*i) != -1);
assert(ndpi_serialize_string_string(&serializer, kbuf, vbuf) != -1);
assert(ndpi_serialize_string_float(&serializer, kbuf, (float)(i*i), "%f") != -1);
}
assert(ndpi_serialize_end_of_list(&serializer) != -1);
assert(ndpi_serialize_string_string(&serializer, "Last", "Ok") != -1);
buffer = ndpi_serializer_get_buffer(&serializer, &buffer_len);
if(verbose)
printf("%s\n", buffer);
/* Decoding JSON to validate syntax */
jerr = json_tokener_success;
j = json_tokener_parse_verbose(buffer, &jerr);
if (j == NULL) {
printf("%s: ERROR (json validation failed)\n", __FUNCTION__);
return -1;
} else {
/* Validation ok */
json_object_put(j);
}
} else if (fmt == ndpi_serialization_format_csv) {
if(verbose) {
buffer_len = 0;
buffer = ndpi_serializer_get_header(&serializer, &buffer_len);
printf("%s\n", buffer);
buffer_len = 0;
buffer = ndpi_serializer_get_buffer(&serializer, &buffer_len);
printf("%s\n", buffer);
}
} else {
if(verbose)
printf("Serialization size: %u\n", ndpi_serializer_get_buffer_len(&serializer));
assert(ndpi_init_deserializer(&deserializer, &serializer) != -1);
while(1) {
ndpi_serialization_type kt, et;
et = ndpi_deserialize_get_item_type(&deserializer, &kt);
if(et == ndpi_serialization_unknown) {
break;
} else if(et == ndpi_serialization_end_of_record) {
if (verbose) printf("EOR\n");
} else {
u_int32_t k32, v32;
int64_t v64;
ndpi_string ks, vs;
float vf;
switch(kt) {
case ndpi_serialization_uint32:
ndpi_deserialize_key_uint32(&deserializer, &k32);
if(verbose) printf("%u=", k32);
break;
case ndpi_serialization_string:
ndpi_deserialize_key_string(&deserializer, &ks);
if (verbose) {
u_int8_t bkp = ks.str[ks.str_len];
ks.str[ks.str_len] = '\0';
printf("%s=", ks.str);
ks.str[ks.str_len] = bkp;
}
break;
default:
printf("%s: ERROR (unsupported TLV key type %u)\n", __FUNCTION__, kt);
return -1;
}
switch(et) {
case ndpi_serialization_uint32:
assert(ndpi_deserialize_value_uint32(&deserializer, &v32) != -1);
if(verbose) printf("%u\n", v32);
break;
case ndpi_serialization_int64:
assert(ndpi_deserialize_value_int64(&deserializer, &v64) != -1);
if(verbose) printf("%" PRId64 "\n", v64);
break;
case ndpi_serialization_string:
assert(ndpi_deserialize_value_string(&deserializer, &vs) != -1);
if(verbose) {
u_int8_t bkp = vs.str[vs.str_len];
vs.str[vs.str_len] = '\0';
printf("%s\n", vs.str);
vs.str[vs.str_len] = bkp;
}
break;
case ndpi_serialization_float:
assert(ndpi_deserialize_value_float(&deserializer, &vf) != -1);
if(verbose) printf("%f\n", vf);
break;
default:
if (verbose) printf("\n");
printf("%s: ERROR (unsupported type %u detected)\n", __FUNCTION__, et);
return -1;
}
}
ndpi_deserialize_next(&deserializer);
}
}
ndpi_term_serializer(&serializer);
}
printf("%30s OK\n", __FUNCTION__);
#endif
return 0;
}
/* *********************************************** */
int serializeProtoUnitTest(void)
{
#ifdef HAVE_LIBJSON_C
ndpi_serializer serializer;
int loop_id;
ndpi_serialization_format fmt = {0};
u_int32_t buffer_len;
char * buffer;
for(loop_id=0; loop_id<3; loop_id++) {
switch(loop_id) {
case 0:
if (verbose) printf("--- TLV test ---\n");
fmt = ndpi_serialization_format_tlv;
break;
case 1:
if (verbose) printf("--- JSON test ---\n");
fmt = ndpi_serialization_format_json;
break;
case 2:
if (verbose) printf("--- CSV test ---\n");
fmt = ndpi_serialization_format_csv;
break;
}
assert(ndpi_init_serializer(&serializer, fmt) != -1);
ndpi_protocol ndpi_proto = { .master_protocol = NDPI_PROTOCOL_TLS,
.app_protocol = NDPI_PROTOCOL_FACEBOOK,
.category = NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK };
ndpi_risk risks = 0;
NDPI_SET_BIT(risks, NDPI_MALFORMED_PACKET);
NDPI_SET_BIT(risks, NDPI_TLS_WEAK_CIPHER);
NDPI_SET_BIT(risks, NDPI_TLS_OBSOLETE_VERSION);
NDPI_SET_BIT(risks, NDPI_TLS_SELFSIGNED_CERTIFICATE);
ndpi_serialize_proto(ndpi_info_mod, &serializer, risks, NDPI_CONFIDENCE_DPI, ndpi_proto);
if (fmt == ndpi_serialization_format_json)
{
buffer_len = 0;
buffer = ndpi_serializer_get_buffer(&serializer, &buffer_len);
char const * const expected_json_str = "{\"ndpi\": {\"flow_risk\": {\"6\": {\"risk\":\"Self-signed Certificate\",\"severity\":\"High\",\"risk_score\": {\"total\":500,\"client\":450,\"server\":50}},\"7\": {\"risk\":\"Obsolete TLS Version (1.1 or older)\",\"severity\":\"High\",\"risk_score\": {\"total\":510,\"client\":455,\"server\":55}},\"8\": {\"risk\":\"Weak TLS Cipher\",\"severity\":\"High\",\"risk_score\": {\"total\":250,\"client\":225,\"server\":25}},\"17\": {\"risk\":\"Malformed Packet\",\"severity\":\"Low\",\"risk_score\": {\"total\":260,\"client\":130,\"server\":130}}},\"confidence\": {\"4\":\"DPI\"},\"proto\":\"TLS.Facebook\",\"breed\":\"Fun\",\"category\":\"SocialNetwork\"}}";
if (strncmp(buffer, expected_json_str, buffer_len) != 0)
{
printf("%s: ERROR: expected JSON str: \"%s\"\n", __FUNCTION__, expected_json_str);
printf("%s: ERROR: got JSON str: \"%.*s\"\n", __FUNCTION__, (int)buffer_len, buffer);
return -1;
}
if(verbose)
printf("%s\n", buffer);
/* Decoding JSON to validate syntax */
enum json_tokener_error jerr = json_tokener_success;
json_object * const j = json_tokener_parse_verbose(buffer, &jerr);
if (j == NULL) {
printf("%s: ERROR (json validation failed)\n", __FUNCTION__);
return -1;
} else {
/* Validation ok */
json_object_put(j);
}
} else if (fmt == ndpi_serialization_format_csv)
{
if(verbose) {
buffer_len = 0;
buffer = ndpi_serializer_get_header(&serializer, &buffer_len);
printf("%s\n", buffer);
buffer_len = 0;
buffer = ndpi_serializer_get_buffer(&serializer, &buffer_len);
printf("%s\n", buffer);
}
}
ndpi_term_serializer(&serializer);
}
printf("%30s OK\n", __FUNCTION__);
#endif
return 0;
}
/* *********************************************** */
int main(int argc, char **argv) {
#ifndef WIN32
int c;
#endif
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;
}
ndpi_info_mod = ndpi_init_detection_module(ndpi_no_prefs);
if (ndpi_info_mod == NULL)
return -1;
/*
* If we want argument parsing on Windows,
* we need to re-implement it as Windows has no such function.
*/
#ifndef WIN32
while((c = getopt(argc, argv, "vh")) != -1) {
switch(c) {
case 'v':
verbose = 1;
break;
default:
printf("Usage: unit [-v] [-h]\n");
return(0);
}
}
#else
verbose = 0;
#endif
/* Tests */
if (serializerUnitTest() != 0) return -1;
if (serializeProtoUnitTest() != 0) return -1;
return 0;
}
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