nDPI/tests/result/dtls_certificate_fragments.pcap.out
Ivan Nardi a7c2734b38
Remove classification "by-ip" from protocol stack (#1743)
Basically:
* "classification by-ip" (i.e. `flow->guessed_protocol_id_by_ip` is
NEVER returned in the protocol stack (i.e.
`flow->detected_protocol_stack[]`);
* if the application is interested into such information, it can access
`ndpi_protocol->protocol_by_ip` itself.

There are mainly 4 points in the code that set the "classification
by-ip" in the protocol stack:  the generic `ndpi_set_detected_protocol()`/
`ndpi_detection_giveup()` functions and the HTTP/STUN  dissectors.

In the unit tests output, a print about `ndpi_protocol->protocol_by_ip`
has been added for each flow: the huge diff of this commit is mainly due
to that.

Strictly speaking, this change is NOT an API/ABI breakage, but there are
important differences in the classification results. For examples:
* TLS flows without the initial handshake (or without a matching
SNI/certificate) are simply classified as `TLS`;
* similar for HTTP or QUIC flows;
* DNS flows without a matching request domain are simply classified as
`DNS`; we don't have `DNS/Google` anymore just because the server is
8.8.8.8 (that was an outrageous behaviour...);
* flows previusoly classified only "by-ip" are now classified as
`NDPI_PROTOCOL_UNKNOWN`.

See #1425 for other examples of why adding the "classification by-ip" in
the protocol stack is a bad idea.

Please, note that IPV6 is not supported :(  (long standing issue in nDPI) i.e.
`ndpi_protocol->protocol_by_ip` wil be always `NDPI_PROTOCOL_UNKNOWN` for
IPv6 flows.

Define `NDPI_CONFIDENCE_MATCH_BY_IP` has been removed.

Close #1687
2022-09-20 22:24:47 +02:00

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Text

Guessed flow protos: 0
DPI Packets (UDP): 4 (4.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 2 (2.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
LRU cache stun: 0/0/0 (insert/search/found)
LRU cache tls_cert: 0/0/0 (insert/search/found)
LRU cache mining: 0/0/0 (insert/search/found)
LRU cache msteams: 0/0/0 (insert/search/found)
Automa host: 0/0 (search/found)
Automa domain: 0/0 (search/found)
Automa tls cert: 0/0 (search/found)
Automa risk mask: 0/0 (search/found)
Automa common alpns: 0/0 (search/found)
Patricia risk mask: 2/0 (search/found)
Patricia risk: 0/0 (search/found)
Patricia protocols: 1/1 (search/found)
DTLS 20 5978 1
JA3 Host Stats:
IP Address # JA3C
1 10.186.198.149 1
1 UDP 10.186.198.149:39347 <-> 35.210.59.134:44443 [proto: 30/DTLS][IP: 284/GoogleCloud][Encrypted][Confidence: DPI][cat: Web/5][11 pkts/2624 bytes <-> 9 pkts/3354 bytes][Goodput ratio: 82/89][2.92 sec][bytes ratio: -0.122 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 324/76 2179/186 659/75][Pkt Len c2s/s2c min/avg/max/stddev: 167/90 239/373 416/1454 97/388][Risk: ** Weak TLS Cipher **** TLS (probably) Not Carrying HTTPS **** Missing SNI TLS Extn **][Risk Score: 160][Risk Info: No ALPN / Cipher TLS_RSA_WITH_AES_256_CBC_SHA][DTLSv1.2][JA3C: 3c3d129780d0066cd8936a6291a8d44f][JA3S: d45798bc098cd930de7eb2f5f866e994 (WEAK)][Firefox][Cipher: TLS_RSA_WITH_AES_256_CBC_SHA][PLAIN TEXT (Opera Software ASA1)][Plen Bins: 0,5,0,35,5,10,10,0,10,10,5,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0]