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https://github.com/vel21ripn/nDPI.git
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a7c2734b38
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
24 lines
1.4 KiB
Text
24 lines
1.4 KiB
Text
Guessed flow protos: 0
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DPI Packets (UDP): 20 (20.00 pkts/flow)
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Confidence DPI : 1 (flows)
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Num dissector calls: 1 (1.00 diss/flow)
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LRU cache ookla: 0/0/0 (insert/search/found)
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LRU cache bittorrent: 0/0/0 (insert/search/found)
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LRU cache zoom: 0/0/0 (insert/search/found)
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LRU cache stun: 0/0/0 (insert/search/found)
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LRU cache tls_cert: 0/0/0 (insert/search/found)
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LRU cache mining: 0/0/0 (insert/search/found)
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LRU cache msteams: 0/0/0 (insert/search/found)
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Automa host: 0/0 (search/found)
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Automa domain: 0/0 (search/found)
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Automa tls cert: 0/0 (search/found)
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Automa risk mask: 0/0 (search/found)
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Automa common alpns: 0/0 (search/found)
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Patricia risk mask: 2/0 (search/found)
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Patricia risk: 0/0 (search/found)
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Patricia protocols: 1/1 (search/found)
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SnapchatCall 50 12772 1
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1 UDP 192.168.12.169:42083 <-> 18.184.138.142:443 [proto: 188.255/QUIC.SnapchatCall][IP: 265/AmazonAWS][Encrypted][Confidence: DPI][cat: VoIP/10][25 pkts/5295 bytes <-> 25 pkts/7477 bytes][Goodput ratio: 80/86][8.29 sec][bytes ratio: -0.171 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 288/246 1313/1315 376/342][Pkt Len c2s/s2c min/avg/max/stddev: 65/62 212/299 1392/1392 365/419][Risk: ** Missing SNI TLS Extn **][Risk Score: 50][PLAIN TEXT (AESGCC20)][Plen Bins: 28,44,0,2,2,0,0,2,4,4,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0]
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