diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/protocols/quic.c | 51 |
1 files changed, 1 insertions, 50 deletions
diff --git a/src/lib/protocols/quic.c b/src/lib/protocols/quic.c index 103a8e817..b67aa991c 100644 --- a/src/lib/protocols/quic.c +++ b/src/lib/protocols/quic.c @@ -69,39 +69,6 @@ static int connect_id(const unsigned char pflags) return cid_len + 1; } -static int sequence(const unsigned char *payload) -{ - unsigned char conv[6] = {0}; - u_int seq_value = -1; - int seq_lens; - int cid_offs; - int i; - - // Search SEQ bytes length. - switch (payload[0] & QUIC_SEQ_MASK) - { - case SEQ_LEN_6: seq_lens = 6; break; - case SEQ_LEN_4: seq_lens = 4; break; - case SEQ_LEN_2: seq_lens = 2; break; - case SEQ_LEN_1: seq_lens = 1; break; - default: - return -1; - } - // Retrieve SEQ offset. - cid_offs = connect_id(payload[0]); - - if (cid_offs >= 0 && seq_lens > 0) - { - for (i = 0; i < seq_lens; i++) - conv[i] = payload[cid_offs + i]; - - seq_value = SEQ_CONV(conv); - } - - // Return SEQ dec value; - return seq_value; -} - void ndpi_search_quic(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { struct ndpi_packet_struct *packet = &flow->packet; @@ -118,23 +85,7 @@ void ndpi_search_quic(struct ndpi_detection_module_struct *ndpi_struct, struct n NDPI_LOG(NDPI_PROTOCOL_QUIC, ndpi_struct, NDPI_LOG_DEBUG, "exclude quic.\n"); NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_QUIC); - - // Settings without version. First check if PUBLIC FLAGS & SEQ bytes are 0x0. SEQ must be 1 at least. - if ((packet->payload[0] == 0x00 && packet->payload[1] != 0x00) || ((packet->payload[0] & QUIC_NO_V_RES_RSV) == 0)) - { - if (sequence(packet->payload) < 1) - { - - NDPI_LOG(NDPI_PROTOCOL_QUIC, ndpi_struct, NDPI_LOG_DEBUG, "exclude quic.\n"); - NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_QUIC); - } - - NDPI_LOG(NDPI_PROTOCOL_QUIC, ndpi_struct, NDPI_LOG_DEBUG, "found quic.\n"); - ndpi_int_quic_add_connection(ndpi_struct, flow); - } - - // Check if version, than the CID length. - else if (packet->payload[0] & QUIC_VER_MASK) + if (packet->payload[0] & QUIC_VER_MASK) { // Skip CID length. ver_offs = connect_id(packet->payload[0]); |