nDPI/tests/result/syncthing.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 (1.00 pkts/flow)
Confidence DPI : 4 (flows)
Num dissector calls: 412 (103.00 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: 0/0 (search/found)
Patricia risk: 0/0 (search/found)
Patricia protocols: 8/0 (search/found)
Syncthing 34 15680 4
1 UDP [fe80::6238:e0ff:fec5:35a0]:47077 -> [ff12::8384]:21027 [proto: 313/Syncthing][IP: 0/Unknown][Encrypted][Confidence: DPI][cat: Download/7][15 pkts/7450 bytes -> 0 pkts/0 bytes][Goodput ratio: 88/0][419.99 sec][bytes ratio: 1.000 (Upload)][IAT c2s/s2c min/avg/max/stddev: 29994/0 30000/0 30004/0 0/0][Pkt Len c2s/s2c min/avg/max/stddev: 267/0 497/0 530/0 85/0][PLAIN TEXT (//192.168.2.100)][Plen Bins: 0,0,0,0,0,0,6,6,0,0,0,0,0,0,87,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
2 UDP 192.168.2.100:54977 -> 192.168.2.255:21027 [proto: 313/Syncthing][IP: 0/Unknown][Encrypted][Confidence: DPI][cat: Download/7][15 pkts/7150 bytes -> 0 pkts/0 bytes][Goodput ratio: 91/0][0.00 sec][bytes ratio: 1.000 (Upload)][IAT c2s/s2c min/avg/max/stddev: 29994/0 30000/0 30005/0 0/0][Pkt Len c2s/s2c min/avg/max/stddev: 247/0 477/0 510/0 85/0][PLAIN TEXT (//192.168.2.100)][Plen Bins: 0,0,0,0,0,0,6,6,0,0,0,0,0,0,87,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
3 UDP [fe80::6238:e0ff:fec5:35a0]:42370 -> [ff12::8384]:21027 [proto: 313/Syncthing][IP: 0/Unknown][Encrypted][Confidence: DPI][cat: Download/7][2 pkts/560 bytes -> 0 pkts/0 bytes][Goodput ratio: 78/0][29.99 sec][PLAIN TEXT (//192.168.2.100)][Plen Bins: 0,0,0,0,0,0,50,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
4 UDP 192.168.2.100:33927 -> 192.168.2.255:21027 [proto: 313/Syncthing][IP: 0/Unknown][Encrypted][Confidence: DPI][cat: Download/7][2 pkts/520 bytes -> 0 pkts/0 bytes][Goodput ratio: 84/0][0.01 sec][PLAIN TEXT (//192.168.2.100)][Plen Bins: 0,0,0,0,0,0,50,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]