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nfqws: QUIC protocol recognition

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bol-van
2022-03-20 20:46:39 +03:00
parent 38dca7da70
commit 0a5ffc1a54
10 changed files with 140 additions and 62 deletions
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18
nfq/desync.c
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@@ -656,8 +656,19 @@ packet_process_result dpi_desync_udp_packet(uint8_t *data_pkt, size_t len_pkt, s
size_t fake_size;
bool b;
if (!params.desync_any_proto) return res;
DLOG("applying tampering to unknown protocol\n")
if (IsQUICInitial(data_payload,len_payload))
{
DLOG("packet contains QUIC initial\n")
fake = params.fake_quic;
fake_size = params.fake_quic_size;
}
else
{
if (!params.desync_any_proto) return res;
DLOG("applying tampering to unknown protocol\n")
fake = params.fake_unknown_udp;
fake_size = params.fake_unknown_udp_size;
}
enum dpi_desync_mode desync_mode = params.desync_mode;
uint8_t fooling_orig = FOOL_NONE;
@@ -667,9 +678,6 @@ packet_process_result dpi_desync_udp_packet(uint8_t *data_pkt, size_t len_pkt, s
else ttl_fake = params.desync_ttl ? params.desync_ttl : ttl_orig;
extract_endpoints(ip, ip6hdr, NULL, udphdr, &src, &dst);
fake = params.fake_unknown_udp;
fake_size = params.fake_unknown_udp_size;
if (params.debug)
{
printf("dpi desync src=");