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Replaced ndpiReader's libjson-c support with libnDPI's internal serialization interface. (#1535)

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* Fixes #1528
 * Serialization Interface should also fuzzed
 * libjson-c may only be used in the unit test to verify the internal serialization interface
 * Serialization Interface supports tlv(broken), csv and json
 * Unit test does work again and requires libjson-c

Signed-off-by: lns <matzeton@googlemail.com>
This commit is contained in:
Toni 2022-05-07 09:26:09 +02:00 • committed by GitHub
parent 2e0dedbaae
commit 87f93ea4fd
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 591 additions and 1123 deletions
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21
fuzz/fuzz_process_packet.c
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@ -4,6 +4,8 @@
#include <stdio.h>
struct ndpi_detection_module_struct *ndpi_info_mod = NULL;
static ndpi_serializer json_serializer = {};
static ndpi_serializer csv_serializer = {};
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
uint8_t protocol_was_guessed;
@ -17,12 +19,27 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
ndpi_set_log_level(ndpi_info_mod, 4);
ndpi_set_debug_bitmask(ndpi_info_mod, debug_bitmask);
ndpi_finalize_initialization(ndpi_info_mod);
ndpi_init_serializer(&json_serializer, ndpi_serialization_format_json);
ndpi_init_serializer(&csv_serializer, ndpi_serialization_format_csv);
}
struct ndpi_flow_struct *ndpi_flow = ndpi_flow_malloc(SIZEOF_FLOW_STRUCT);
memset(ndpi_flow, 0, SIZEOF_FLOW_STRUCT);
ndpi_detection_process_packet(ndpi_info_mod, ndpi_flow, Data, Size, 0);
ndpi_detection_giveup(ndpi_info_mod, ndpi_flow, 1, &protocol_was_guessed);
ndpi_protocol detected_protocol =
ndpi_detection_process_packet(ndpi_info_mod, ndpi_flow, Data, Size, 0);
ndpi_protocol guessed_protocol =
ndpi_detection_giveup(ndpi_info_mod, ndpi_flow, 1, &protocol_was_guessed);
ndpi_reset_serializer(&json_serializer);
ndpi_reset_serializer(&csv_serializer);
if (protocol_was_guessed == 0)
{
ndpi_dpi2json(ndpi_info_mod, ndpi_flow, detected_protocol, &json_serializer);
ndpi_dpi2json(ndpi_info_mod, ndpi_flow, detected_protocol, &csv_serializer);
} else {
ndpi_dpi2json(ndpi_info_mod, ndpi_flow, guessed_protocol, &json_serializer);
ndpi_dpi2json(ndpi_info_mod, ndpi_flow, guessed_protocol, &csv_serializer);
}
ndpi_free_flow(ndpi_flow);
return 0;