From e6b332aa4a1399e33df68998cf8351bccaee3fc4 Mon Sep 17 00:00:00 2001
From: Ivan Nardi <12729895+IvanNardi@users.noreply.github.com>
Date: Sun, 24 Jul 2022 17:46:24 +0200
Subject: Add support for flow client/server information (#1671)

In a lot of places in ndPI we use *packet* source/dest info
(address/port/direction) when we are interested in *flow* client/server
info, instead.

Add basic logic to autodetect this kind of information.

nDPI doesn't perform any "flow management" itself but this task is
delegated to the external application. It is then likely that the
application might provide more reliable hints about flow
client/server direction and about the TCP handshake presence: in that case,
these information might be (optionally) passed to the library, disabling
the internal "autodetect" logic.

These new fields have been used in some LRU caches and in the "guessing"
algorithm.
It is quite likely that some other code needs to be updated.
---
 fuzz/fuzz_process_packet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fuzz/fuzz_process_packet.c')

diff --git a/fuzz/fuzz_process_packet.c b/fuzz/fuzz_process_packet.c
index e4f4bcf78..eb5a0a281 100644
--- a/fuzz/fuzz_process_packet.c
+++ b/fuzz/fuzz_process_packet.c
@@ -26,7 +26,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
   struct ndpi_flow_struct *ndpi_flow = ndpi_flow_malloc(SIZEOF_FLOW_STRUCT);
   memset(ndpi_flow, 0, SIZEOF_FLOW_STRUCT);
   ndpi_protocol detected_protocol =
-    ndpi_detection_process_packet(ndpi_info_mod, ndpi_flow, Data, Size, 0);
+    ndpi_detection_process_packet(ndpi_info_mod, ndpi_flow, Data, Size, 0, NULL);
   ndpi_protocol guessed_protocol =
     ndpi_detection_giveup(ndpi_info_mod, ndpi_flow, 1, &protocol_was_guessed);
 
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