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| author | Ivan Nardi <12729895+IvanNardi@users.noreply.github.com> | 2022-01-11 15:23:39 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-01-11 15:23:39 +0100 |
| commit | 3a087e951d96f509c75344ad6791591e10e4f1cd (patch) | |
| tree | e1c83179768f1445610bf060917700f17fce908f /src/lib/protocols/gtp.c | |
| parent | a2916d2e4c19aff56979b1dafa7edd0c7d3c17fe (diff) | |
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.
Diffstat (limited to 'src/lib/protocols/gtp.c')
| -rw-r--r-- | src/lib/protocols/gtp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/lib/protocols/gtp.c b/src/lib/protocols/gtp.c index 8fd85f755..1a40784ef 100644 --- a/src/lib/protocols/gtp.c +++ b/src/lib/protocols/gtp.c @@ -82,7 +82,7 @@ static void ndpi_check_gtp(struct ndpi_detection_module_struct *ndpi_struct, str (payload_len >= HEADER_LEN_GTP_U) && (message_len <= (payload_len - HEADER_LEN_GTP_U))) { NDPI_LOG_INFO(ndpi_struct, "found gtp-u\n"); - ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_GTP_U, NDPI_PROTOCOL_GTP); + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_GTP_U, NDPI_PROTOCOL_GTP, NDPI_CONFIDENCE_DPI); return; } } @@ -96,7 +96,7 @@ static void ndpi_check_gtp(struct ndpi_detection_module_struct *ndpi_struct, str /* payload_len is always valid, because HEADER_LEN_GTP_C_V2 == sizeof(struct gtp_header_generic) */ (message_len == (payload_len - HEADER_LEN_GTP_C_V2)))) { NDPI_LOG_INFO(ndpi_struct, "found gtp-c\n"); - ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_GTP_C, NDPI_PROTOCOL_GTP); + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_GTP_C, NDPI_PROTOCOL_GTP, NDPI_CONFIDENCE_DPI); return; } } @@ -108,7 +108,7 @@ static void ndpi_check_gtp(struct ndpi_detection_module_struct *ndpi_struct, str ((gtp->message_type > 0 && gtp->message_type <= 7) || /* Check based on TS 32.295 6.2.1 */ gtp->message_type == 240 || gtp->message_type == 241)) { NDPI_LOG_INFO(ndpi_struct, "found gtp-prime\n"); - ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_GTP_PRIME, NDPI_PROTOCOL_GTP); + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_GTP_PRIME, NDPI_PROTOCOL_GTP, NDPI_CONFIDENCE_DPI); return; } } |