Add Raft protocol dissector.

doc/protocols.rst

@@ -558,3 +558,12 @@ References: `Protocol Specs: <https://stomp.github.io/stomp-specification-1.2.ht
 Radmin is remote access software for the Microsoft Windows platform.
 
 References: `Main site <https://www.radmin.com/>`_
+
+
+.. _Proto 392:
+
+`NDPI_PROTOCOL_RAFT`
+====================
+Raft is a consensus algorithm and protocol for managing a replicated log.
+
+References: `C implementation <https://github.com/canonical/raft>`_ and `Paper <https://raft.github.io/raft.pdf>`_

src/include/ndpi_private.h

@@ -723,6 +723,7 @@ void init_zoom_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int
 void init_yojimbo_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
 void init_stomp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
 void init_radmin_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
+void init_raft_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
 
 #endif
 

src/include/ndpi_protocol_ids.h

@@ -420,6 +420,7 @@ typedef enum {
   NDPI_PROTOCOL_ELECTRONICARTS        = 389,
   NDPI_PROTOCOL_STOMP                 = 390,
   NDPI_PROTOCOL_RADMIN                = 391,
+  NDPI_PROTOCOL_RAFT                  = 392,
 
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_protocol_ids.h"

src/lib/ndpi_main.c

@@ -2218,6 +2218,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
 			  "Radmin", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
 			  ndpi_build_default_ports(ports_a, 4899, 0, 0, 0, 0) /* TCP */,
 			  ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
+  ndpi_set_proto_defaults(ndpi_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RAFT,
+			  "Raft", NDPI_PROTOCOL_CATEGORY_NETWORK,
+			  ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
+			  ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
 
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_main.c"
@@ -5884,6 +5888,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) {
   /* RDP */
   init_radmin_dissector(ndpi_str, &a);
 
+  /* Raft */
+  init_raft_dissector(ndpi_str, &a);
+
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_main_init.c"
 #endif

src/lib/protocols/raft.c

@@ -0,0 +1,111 @@
+/*
+ * raft.c
+ *
+ * Copyright (C) 2024 - ntop.org
+ *
+ * This file is part of nDPI, an open source deep packet inspection
+ * library based on the OpenDPI and PACE technology by ipoque GmbH
+ *
+ * nDPI is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * nDPI is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with nDPI.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include "ndpi_protocol_ids.h"
+
+#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_RAFT
+#include "ndpi_api.h"
+#include "ndpi_private.h"
+
+PACK_ON
+struct raft_header {
+  uint64_t msg_type;
+  uint64_t msg_length;
+} PACK_OFF;
+
+enum raft_header_type {
+  RAFT_IO_APPEND_ENTRIES = 1,
+  RAFT_IO_APPEND_ENTRIES_RESULT,
+  RAFT_IO_REQUEST_VOTE,
+  RAFT_IO_REQUEST_VOTE_RESULT,
+  RAFT_IO_INSTALL_SNAPSHOT,
+  RAFT_IO_TIMEOUT_NOW
+};
+
+static void ndpi_int_raft_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
+                                         struct ndpi_flow_struct *flow)
+{
+  NDPI_LOG_INFO(ndpi_struct, "found raft\n");
+  ndpi_set_detected_protocol(ndpi_struct, flow,
+                             NDPI_PROTOCOL_RAFT,
+                             NDPI_PROTOCOL_UNKNOWN,
+                             NDPI_CONFIDENCE_DPI);
+}
+
+static void ndpi_search_raft(struct ndpi_detection_module_struct *ndpi_struct,
+                             struct ndpi_flow_struct *flow)
+{
+  struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;
+  struct raft_header const * const raft_header = (struct raft_header *)packet->payload;
+
+  NDPI_LOG_DBG(ndpi_struct, "search raft\n");
+
+  if (packet->payload_packet_len < sizeof(*raft_header))
+  {
+    NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+    return;
+  }
+
+  uint64_t msg_type = le64toh(raft_header->msg_type);
+  switch (msg_type)
+  {
+    case RAFT_IO_APPEND_ENTRIES:
+    case RAFT_IO_APPEND_ENTRIES_RESULT:
+    case RAFT_IO_REQUEST_VOTE:
+    case RAFT_IO_REQUEST_VOTE_RESULT:
+    case RAFT_IO_INSTALL_SNAPSHOT:
+    case RAFT_IO_TIMEOUT_NOW:
+      break;
+
+    default:
+      NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+      return;
+  }
+
+  uint64_t msg_length = le64toh(raft_header->msg_length);
+  if (msg_length == packet->payload_packet_len - sizeof(*raft_header))
+  {
+    ndpi_int_raft_add_connection(ndpi_struct, flow);
+    return;
+  }
+
+  if (flow->packet_counter < 3)
+  {
+    return;
+  }
+
+  ndpi_int_raft_add_connection(ndpi_struct, flow);
+}
+
+void init_raft_dissector(struct ndpi_detection_module_struct *ndpi_struct,
+                         u_int32_t *id)
+{
+  ndpi_set_bitmask_protocol_detection("Raft", ndpi_struct, *id,
+                                      NDPI_PROTOCOL_RAFT,
+                                      ndpi_search_raft,
+                                      NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
+                                      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+                                      ADD_TO_DETECTION_BITMASK);
+
+  *id += 1;
+}
+

tests/cfgs/caches_cfg/result/ookla.pcap.out

@@ -3,7 +3,7 @@ Guessed flow protos:	1
 DPI Packets (TCP):	40	(6.67 pkts/flow)
 Confidence Match by port    : 1 (flows)
 Confidence DPI              : 5 (flows)
-Num dissector calls: 559 (93.17 diss/flow)
+Num dissector calls: 562 (93.67 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/caches_cfg/result/teams.pcap.out

@@ -6,7 +6,7 @@ DPI Packets (other):	1	(1.00 pkts/flow)
 Confidence Unknown          : 1 (flows)
 Confidence Match by port    : 2 (flows)
 Confidence DPI              : 80 (flows)
-Num dissector calls: 529 (6.37 diss/flow)
+Num dissector calls: 530 (6.39 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/9/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/1kxun.pcap.out

@@ -5,7 +5,7 @@ DPI Packets (UDP):	120	(1.21 pkts/flow)
 Confidence Unknown          : 14 (flows)
 Confidence Match by port    : 6 (flows)
 Confidence DPI              : 177 (flows)
-Num dissector calls: 4930 (25.03 diss/flow)
+Num dissector calls: 4933 (25.04 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/60/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/443-chrome.pcap.out

@@ -2,7 +2,7 @@ Guessed flow protos:	1
 
 DPI Packets (TCP):	1	(1.00 pkts/flow)
 Confidence Match by port    : 1 (flows)
-Num dissector calls: 141 (141.00 diss/flow)
+Num dissector calls: 142 (142.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/443-opvn.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	6	(6.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 142 (142.00 diss/flow)
+Num dissector calls: 143 (143.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/KakaoTalk_chat.pcap.out

@@ -5,7 +5,7 @@ DPI Packets (UDP):	36	(2.00 pkts/flow)
 DPI Packets (other):	1	(1.00 pkts/flow)
 Confidence Match by port    : 5 (flows)
 Confidence DPI              : 33 (flows)
-Num dissector calls: 569 (14.97 diss/flow)
+Num dissector calls: 571 (15.03 diss/flow)
 LRU cache ookla:      0/1/0 (insert/search/found)
 LRU cache bittorrent: 0/15/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/KakaoTalk_talk.pcap.out

@@ -5,7 +5,7 @@ DPI Packets (UDP):	10	(2.00 pkts/flow)
 Confidence Match by port    : 8 (flows)
 Confidence DPI              : 11 (flows)
 Confidence Match by IP      : 1 (flows)
-Num dissector calls: 1192 (59.60 diss/flow)
+Num dissector calls: 1196 (59.80 diss/flow)
 LRU cache ookla:      0/2/0 (insert/search/found)
 LRU cache bittorrent: 0/27/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/Oscar.pcap.out

@@ -2,7 +2,7 @@ Guessed flow protos:	1
 
 DPI Packets (TCP):	21	(21.00 pkts/flow)
 Confidence Match by port    : 1 (flows)
-Num dissector calls: 261 (261.00 diss/flow)
+Num dissector calls: 262 (262.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/alexa-app.pcapng.out

@@ -5,7 +5,7 @@ DPI Packets (UDP):	64	(1.94 pkts/flow)
 DPI Packets (other):	6	(1.00 pkts/flow)
 Confidence Match by port    : 14 (flows)
 Confidence DPI              : 146 (flows)
-Num dissector calls: 555 (3.47 diss/flow)
+Num dissector calls: 556 (3.47 diss/flow)
 LRU cache ookla:      0/5/0 (insert/search/found)
 LRU cache bittorrent: 0/42/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/amqp.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	9	(3.00 pkts/flow)
 Confidence DPI              : 3 (flows)
-Num dissector calls: 385 (128.33 diss/flow)
+Num dissector calls: 386 (128.67 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/anyconnect-vpn.pcap.out

@@ -6,7 +6,7 @@ DPI Packets (other):	10	(1.00 pkts/flow)
 Confidence Unknown          : 2 (flows)
 Confidence Match by port    : 6 (flows)
 Confidence DPI              : 61 (flows)
-Num dissector calls: 865 (12.54 diss/flow)
+Num dissector calls: 866 (12.55 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/24/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/bittorrent_tcp_miss.pcapng.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	10	(10.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 241 (241.00 diss/flow)
+Num dissector calls: 242 (242.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 5/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/cassandra.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	16	(5.33 pkts/flow)
 Confidence DPI              : 3 (flows)
-Num dissector calls: 285 (95.00 diss/flow)
+Num dissector calls: 287 (95.67 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/cloudflare-warp.pcap.out

@@ -4,7 +4,7 @@ DPI Packets (TCP):	41	(5.12 pkts/flow)
 Confidence Match by port    : 2 (flows)
 Confidence DPI              : 5 (flows)
 Confidence Match by IP      : 1 (flows)
-Num dissector calls: 198 (24.75 diss/flow)
+Num dissector calls: 199 (24.88 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/9/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/custom_rules_same-ip_multiple_ports.pcapng.out

@@ -27,6 +27,6 @@ CustomProtocolC	3	222	1
 
 Acceptable                       8 592           3            
 
-	1	TCP 192.168.1.245:56866 -> 3.3.3.3:443 [proto: 91.398/TLS.CustomProtocolA][IP: 398/CustomProtocolA][Encrypted][Confidence: Match by custom rule][DPI packets: 1][cat: Web/5][3 pkts/222 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][3.05 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	1	TCP 192.168.1.245:56866 -> 3.3.3.3:443 [proto: 91.399/TLS.CustomProtocolA][IP: 399/CustomProtocolA][Encrypted][Confidence: Match by custom rule][DPI packets: 1][cat: Web/5][3 pkts/222 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][3.05 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	2	TCP 192.168.1.245:58288 -> 3.3.3.3:446 [proto: 800/CustomProtocolC][IP: 800/CustomProtocolC][ClearText][Confidence: Match by custom rule][DPI packets: 1][3 pkts/222 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][3.04 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	3	TCP 192.168.1.245:59682 -> 3.3.3.3:444 [proto: 399/CustomProtocolB][IP: 399/CustomProtocolB][ClearText][Confidence: Match by custom rule][DPI packets: 1][2 pkts/148 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][1.02 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	3	TCP 192.168.1.245:59682 -> 3.3.3.3:444 [proto: 400/CustomProtocolB][IP: 400/CustomProtocolB][ClearText][Confidence: Match by custom rule][DPI packets: 1][2 pkts/148 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][1.02 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

tests/cfgs/default/result/edonkey.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	5	(5.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 144 (144.00 diss/flow)
+Num dissector calls: 145 (145.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/emotet.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	48	(8.00 pkts/flow)
 Confidence DPI              : 6 (flows)
-Num dissector calls: 216 (36.00 diss/flow)
+Num dissector calls: 217 (36.17 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/fastcgi.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	6	(6.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 167 (167.00 diss/flow)
+Num dissector calls: 168 (168.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/ftp-start-tls.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	17	(17.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 169 (169.00 diss/flow)
+Num dissector calls: 170 (170.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/ftp.pcap.out

@@ -1,7 +1,7 @@
 DPI Packets (TCP):	39	(13.00 pkts/flow)
 Confidence Unknown          : 1 (flows)
 Confidence DPI              : 2 (flows)
-Num dissector calls: 539 (179.67 diss/flow)
+Num dissector calls: 541 (180.33 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/ftp_failed.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	8	(8.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 168 (168.00 diss/flow)
+Num dissector calls: 169 (169.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/fuzz-2006-06-26-2594.pcap.out

@@ -6,7 +6,7 @@ DPI Packets (other):	5	(1.00 pkts/flow)
 Confidence Unknown          : 34 (flows)
 Confidence Match by port    : 27 (flows)
 Confidence DPI              : 190 (flows)
-Num dissector calls: 7124 (28.38 diss/flow)
+Num dissector calls: 7136 (28.43 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/189/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/fuzz-2006-09-29-28586.pcap.out

@@ -5,7 +5,7 @@ DPI Packets (other):	1	(1.00 pkts/flow)
 Confidence Unknown          : 3 (flows)
 Confidence Match by port    : 26 (flows)
 Confidence DPI              : 11 (flows)
-Num dissector calls: 1101 (27.52 diss/flow)
+Num dissector calls: 1107 (27.67 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/87/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/fuzz-2021-10-13.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	1	(1.00 pkts/flow)
 Confidence Unknown          : 1 (flows)
-Num dissector calls: 140 (140.00 diss/flow)
+Num dissector calls: 141 (141.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/google_ssl.pcap.out

@@ -2,7 +2,7 @@ Guessed flow protos:	1
 
 DPI Packets (TCP):	24	(24.00 pkts/flow)
 Confidence Match by port    : 1 (flows)
-Num dissector calls: 205 (205.00 diss/flow)
+Num dissector calls: 206 (206.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/http_guessed_host_and_guessed.pcapng.out

@@ -2,7 +2,7 @@ Guessed flow protos:	1
 
 DPI Packets (TCP):	1	(1.00 pkts/flow)
 Confidence Match by port    : 1 (flows)
-Num dissector calls: 141 (141.00 diss/flow)
+Num dissector calls: 142 (142.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/3/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)

tests/cfgs/default/result/imap-starttls.pcap.out

@@ -1,6 +1,6 @@
 DPI Packets (TCP):	19	(19.00 pkts/flow)
 Confidence DPI              : 1 (flows)
-Num dissector calls: 217 (217.00 diss/flow)
+Num dissector calls: 218 (218.00 diss/flow)
 LRU cache ookla:      0/0/0 (insert/search/found)
 LRU cache bittorrent: 0/0/0 (insert/search/found)
 LRU cache zoom:       0/0/0 (insert/search/found)