From 3a087e951d96f509c75344ad6791591e10e4f1cd Mon Sep 17 00:00:00 2001
From: Ivan Nardi <12729895+IvanNardi@users.noreply.github.com>
Date: Tue, 11 Jan 2022 15:23:39 +0100
Subject: Add a "confidence" field about the reliability of the classification.
 (#1395)

As a general rule, the higher the confidence value, the higher the
"reliability/precision" of the classification.

In other words, this new field provides an hint about "how" the flow
classification has been obtained.
For example, the application may want to ignore classification "by-port"
(they are not real DPI classifications, after all) or give a second
glance at flows classified via LRU caches (because of false positives).

Setting only one value for the confidence field is a bit tricky: more
work is probably needed in the next future to tweak/fix/improve the logic.
---
 example/reader_util.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'example/reader_util.c')

diff --git a/example/reader_util.c b/example/reader_util.c
index 7a2649da4..76729c4c6 100644
--- a/example/reader_util.c
+++ b/example/reader_util.c
@@ -1065,6 +1065,8 @@ void process_ndpi_collected_info(struct ndpi_workflow * workflow, struct ndpi_fl
 
   if(!flow->ndpi_flow) return;
 
+  flow->confidence = flow->ndpi_flow->confidence;
+
   snprintf(flow->host_server_name, sizeof(flow->host_server_name), "%s",
 	   flow->ndpi_flow->host_server_name);
 
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