Remove some old protocols (#1832)

These protocols:
* have been addeded in the OpenDPI era
* have never been updated since then
* we don't have any pcap examples [*]

If (and it is a big if...) some of these protocols are still somehow
used and if someone is still interested in them, we can probably
re-add them starting from scratch (because the current detection
rules are probably outdated)

Protocols removed: DIRECT_DOWNLOAD_LINK, APPLEJUICE, DIRECTCONNECT,
OPENFT, FASTTRACK, SHOUTCAST, THUNDER, AYIYA, STEALTHNET, FIESTA,
FLORENSIA, AIMINI, SOPCAST

PPSTREAM dissector works (...) only on UDP.

[*]: with do have an AIMINI test pcap but it was some trivial http
traffic detected only by hostname matching, on domains no more
available...

1 files changed, 0 insertions, 207 deletions

diff --git a/src/lib/protocols/directconnect.c b/src/lib/protocols/directconnect.c
deleted file mode 100644
index 01caf79ff..000000000
--- a/src/lib/protocols/directconnect.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * directconnect.c
- *
- * Copyright (C) 2009-11 - ipoque GmbH
- * Copyright (C) 2011-22 - 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_DIRECTCONNECT
-
-#include "ndpi_api.h"
-
-
-//#define NDPI_DEBUG_DIRECTCONNECT
-//#define NDPI_DIRECTCONNECT_PORT_DEBUG
-//#define NDPI_DEBUG_DIRECTCONNECT_CONN
-
-
-#define DIRECT_CONNECT_TYPE_HUB  0
-#define DIRECT_CONNECT_TYPE_PEER 1
-#define DIRECT_CONNECT_ADC_PEER  2
-
-static u_int32_t skip_unknown_headers(const u_int8_t * payload, u_int32_t payload_len, u_int32_t pos)
-{
-  u_int32_t i = pos;
-  while (i < payload_len && payload[i] != 0x0a)
-    i++;
-
-  i++;
-  return i;
-
-}
-
-static u_int16_t parse_binf_message(struct ndpi_detection_module_struct
-				    *ndpi_struct, const u_int8_t * payload, uint32_t payload_len)
-{
-  u_int32_t i = 4;
-  u_int16_t bytes_read = 0;
-  u_int16_t ssl_port = 0;
-  while (i < payload_len) {
-    i = skip_unknown_headers(payload, payload_len, i);
-    if((i + 30) < payload_len) {
-      if(memcmp(&payload[i], "DCTM", 4) == 0) {
-	if(memcmp(&payload[i + 15], "ADCS", 4) == 0) {
-	  ssl_port = ntohs_ndpi_bytestream_to_number(&payload[i + 25], 5, &bytes_read);
-	  NDPI_LOG_DBG2(ndpi_struct, "DC ssl port parsed %d\n", ssl_port);
-	}
-      }
-    } else {
-      break;
-    }
-
-  }
-  return ssl_port;
-}
-
-static void ndpi_int_directconnect_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
-						  struct ndpi_flow_struct *flow,
-						  const u_int8_t connection_type)
-{
-  ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_DIRECTCONNECT, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
-}
-
-static void ndpi_search_directconnect_tcp(struct ndpi_detection_module_struct *ndpi_struct,
-					  struct ndpi_flow_struct *flow) {
-  struct ndpi_packet_struct *packet = &ndpi_struct->packet;
-	
-  if(flow->detected_protocol_stack[0] == NDPI_PROTOCOL_DIRECTCONNECT) {
-    if(packet->payload_packet_len >= 40 && memcmp(&packet->payload[0], "BINF", 4) == 0) {
-      parse_binf_message(ndpi_struct,
-			 &packet->payload[4],
-			 packet->payload_packet_len - 4);
-    }
-    
-    return;
-
-  }
-
-  if(flow->directconnect_stage == 0) {
-
-    if(packet->payload_packet_len > 6) {
-      if(packet->payload[0] == '$'
-	  && packet->payload[packet->payload_packet_len - 1] == '|'
-	  && (memcmp(&packet->payload[1], "Lock ", 5) == 0)) {
-	NDPI_LOG_DBG2(ndpi_struct, "maybe first dc connect to hub  detected\n");
-	flow->directconnect_stage = 1;
-	return;
-      }
-      if(packet->payload_packet_len > 7
-	  && packet->payload[0] == '$'
-	  && packet->payload[packet->payload_packet_len - 1] == '|'
-	  && (memcmp(&packet->payload[1], "MyNick ", 7) == 0)) {
-	NDPI_LOG_DBG2(ndpi_struct, "maybe first dc connect between peers  detected\n");
-	flow->directconnect_stage = 2;
-	return;
-      }
-
-    }
-    if(packet->payload_packet_len >= 11) {
-      /* did not see this pattern in any trace */
-      if(memcmp(&packet->payload[0], "HSUP ADBAS0", 11) == 0
-	  || memcmp(&packet->payload[0], "HSUP ADBASE", 11) == 0) {
-	NDPI_LOG_INFO(ndpi_struct, "found DC HSUP ADBAS0 E\n");
-	ndpi_int_directconnect_add_connection(ndpi_struct, flow, DIRECT_CONNECT_TYPE_HUB);
-	return;
-	/* did not see this pattern in any trace */
-      } else if(memcmp(&packet->payload[0], "CSUP ADBAS0", 11) == 0 ||
-		 memcmp(&packet->payload[0], "CSUP ADBASE", 11) == 0) {
-	NDPI_LOG_INFO(ndpi_struct, "found DC CSUP ADBAS0 E\n");
-	ndpi_int_directconnect_add_connection(ndpi_struct, flow, DIRECT_CONNECT_ADC_PEER);
-	return;
-
-      }
-
-    }
-
-  } else if(flow->directconnect_stage == 1) {
-    if(packet->payload_packet_len >= 11) {
-      /* did not see this pattern in any trace */
-      if(memcmp(&packet->payload[0], "HSUP ADBAS0", 11) == 0
-	  || memcmp(&packet->payload[0], "HSUP ADBASE", 11) == 0) {
-	NDPI_LOG_INFO(ndpi_struct, "found DC HSUP ADBAS E in second packet\n");
-	ndpi_int_directconnect_add_connection(ndpi_struct, flow, DIRECT_CONNECT_TYPE_HUB);
-	return;
-	/* did not see this pattern in any trace */
-      } else if(memcmp(&packet->payload[0], "CSUP ADBAS0", 11) == 0 ||
-		 memcmp(&packet->payload[0], "CSUP ADBASE", 11) == 0) {
-	NDPI_LOG_INFO(ndpi_struct, "found DC HSUP ADBAS0 E in second packet\n");
-	ndpi_int_directconnect_add_connection(ndpi_struct, flow, DIRECT_CONNECT_ADC_PEER);
-	return;
-
-      }
-    }
-    /* get client hello answer or server message */
-    if(packet->payload_packet_len > 6) {
-      if((packet->payload[0] == '$' || packet->payload[0] == '<')
-	  && packet->payload[packet->payload_packet_len - 1] == '|') {
-	NDPI_LOG_INFO(ndpi_struct, "found DC second\n");
-	ndpi_int_directconnect_add_connection(ndpi_struct, flow, DIRECT_CONNECT_TYPE_HUB);
-	return;
-      } else {
-	NDPI_LOG_DBG2(ndpi_struct, "second dc not detected\n");
-      }
-
-    }
-  } else if(flow->directconnect_stage == 2) {
-    /* get client hello answer or server message */
-    if(packet->payload_packet_len > 6) {
-      if(packet->payload[0] == '$' && packet->payload[packet->payload_packet_len - 1] == '|') {
-	NDPI_LOG_INFO(ndpi_struct, "found DC between peers\n");
-	ndpi_int_directconnect_add_connection(ndpi_struct, flow, DIRECT_CONNECT_TYPE_PEER);
-	return;
-      } else {
-	NDPI_LOG_DBG2(ndpi_struct, "second dc between peers not detected\n");
-      }
-    }
-
-  }
-
-  NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
-
-}
-
-void ndpi_search_directconnect(struct ndpi_detection_module_struct
-			       *ndpi_struct, struct ndpi_flow_struct *flow)
-{
-  struct ndpi_packet_struct *packet = &ndpi_struct->packet;
-
-  NDPI_LOG_DBG(ndpi_struct, "search DC\n");
-
-  if(packet->tcp != NULL) {
-    ndpi_search_directconnect_tcp(ndpi_struct, flow);
-  }
-}
-
-
-void init_directconnect_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id)
-{
-  ndpi_set_bitmask_protocol_detection("DirectConnect", ndpi_struct, *id,
-				      NDPI_PROTOCOL_DIRECTCONNECT,
-				      ndpi_search_directconnect,
-				      /* TODO: UDP?*/
-				      NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
-				      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
-				      ADD_TO_DETECTION_BITMASK);
-
-  *id += 1;
-}