diff options
| author | Nardi Ivan <nardi.ivan@gmail.com> | 2024-08-05 11:26:08 +0200 |
|---|---|---|
| committer | Ivan Nardi <12729895+IvanNardi@users.noreply.github.com> | 2024-09-03 12:39:07 +0200 |
| commit | 5d8edccef8adcbf05bb5b01bd78b44ed2e80694e (patch) | |
| tree | 591f91fd6da3997589c4e912d308b83baa990d7b /src | |
| parent | 91531ed040933ea96eaa4c3f3cd9d11159acf586 (diff) | |
Bittorrent: improve detection of UTPv1 and avoid false positives
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/protocols/bittorrent.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/protocols/bittorrent.c b/src/lib/protocols/bittorrent.c index c0f5955c9..01080906f 100644 --- a/src/lib/protocols/bittorrent.c +++ b/src/lib/protocols/bittorrent.c @@ -104,6 +104,8 @@ static u_int8_t is_utpv1_pkt(const u_int8_t *payload, u_int payload_len) { if(h->next_extension > 2) return(0); if(h->h_type == 4 /* SYN */ && (h->tdiff_usec != 0 || payload_len != (u_int)h_length)) return(0); + if(h->h_type == 2 /* STATE */ && + payload_len != (u_int)h_length) return(0); if(h->h_type == 0 /* DATA */ && payload_len == (u_int)h_length) return(0); if(h->connection_id == 0) return(0); |