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.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/protocols/viber.c b/src/lib/protocols/viber.c
index 929a8589f..6b263fc93 100644
--- a/src/lib/protocols/viber.c
+++ b/src/lib/protocols/viber.c
@@ -41,7 +41,7 @@ void ndpi_search_viber(struct ndpi_detection_module_struct *ndpi_struct, struct
        || (packet->payload_packet_len == 34 && packet->payload[2] == 0x1b && packet->payload[3] == 0x00)
        ) {
       NDPI_LOG_DBG(ndpi_struct, "found VIBER\n");
-      ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_VIBER, NDPI_PROTOCOL_UNKNOWN);
+      ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_VIBER, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
       return;
     } 
   }