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authorLuca Deri <deri@ntop.org>2019-09-26 21:52:42 +0200
committerLuca Deri <deri@ntop.org>2019-09-26 21:52:42 +0200
commit0e9918464bb4e734cec0ef370ffc927926e2f810 (patch)
treec302fb790bf013c12fb49b2cdea9f70fa37ad080 /src/lib/protocols/zoom.c
parentce40155377fe7211da546c76de42d3c8024032b9 (diff)
Added Zoom protocol support removing invalid STUN/Skype detections
Diffstat (limited to 'src/lib/protocols/zoom.c')
-rw-r--r--src/lib/protocols/zoom.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/src/lib/protocols/zoom.c b/src/lib/protocols/zoom.c
deleted file mode 100644
index 341fb1c0f..000000000
--- a/src/lib/protocols/zoom.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * zoom.c
- *
- * Copyright (C) 2018 by 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_ZOOM
-
-#include "ndpi_api.h"
-
-static u_int8_t is_zoom_tcp_port(struct ndpi_flow_struct *flow) {
-
- struct ndpi_packet_struct *packet = &flow->packet;
- u_int16_t dport = ntohs(packet->tcp->dest);
-
- if((dport == 8801) || (dport == 8802) || (dport == 5090) || (dport == 5091)){
- return 1;
- }
- return 0;
-}
-
-static u_int8_t is_zoom_udp_port(struct ndpi_flow_struct *flow) {
-
- struct ndpi_packet_struct *packet = &flow->packet;
- u_int16_t dport = ntohs(packet->tcp->dest);
-
- if((dport == 3478) || (dport == 3479) || (dport == 5090) ||
- (dport >= 8801 && dport <= 8810) || (dport >= 20000 && dport <= 64000)){
- return 1;
- }
- return 0;
-}
-
-static u_int8_t zoom_ptree_match(struct ndpi_detection_module_struct *ndpi_struct, struct in_addr *pin) {
- return((ndpi_network_ptree_match(ndpi_struct, pin) == NDPI_PROTOCOL_ZOOM) ? 1 : 0);
-}
-
-/* ******************************************* */
-
-static u_int8_t is_zoom_flow(struct ndpi_detection_module_struct *ndpi_struct,
- struct ndpi_flow_struct *flow) {
- struct ndpi_packet_struct *packet = &flow->packet;
-
- if(packet->iph) {
- struct in_addr daddr;
-
- daddr.s_addr = packet->iph->daddr;
-
- if(zoom_ptree_match(ndpi_struct, &daddr)) {
- return(1);
- }
- }
-
- return(0);
-}
-
-static void ndpi_check_zoom(struct ndpi_detection_module_struct *ndpi_struct,
- struct ndpi_flow_struct *flow) {
-
- struct ndpi_packet_struct *packet = &flow->packet;
-
- NDPI_LOG_DBG(ndpi_struct, "search Zoom video \n");
-
- if(packet->tcp != NULL)
- {
- if (is_zoom_flow(ndpi_struct, flow) && is_zoom_tcp_port(flow)){
- NDPI_LOG_INFO(ndpi_struct, "found zoom on tcp\n");
-
- ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_ZOOM,
- NDPI_PROTOCOL_UNKNOWN);
- return;
- }
- }
- else if(packet->udp != NULL)
- {
- if (is_zoom_flow(ndpi_struct, flow) && is_zoom_udp_port(flow)){
- NDPI_LOG_INFO(ndpi_struct, "found zoom on udp\n");
-
- ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_ZOOM,
- NDPI_PROTOCOL_UNKNOWN);
- return;
- }
- }
- else
- {
- NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
- }
-}
-
-void ndpi_search_zoom(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
-{
- struct ndpi_packet_struct *packet = &flow->packet;
-
- NDPI_LOG_DBG(ndpi_struct, "search zoom\n");
-
- /* skip marked packets */
- if(packet->detected_protocol_stack[0] != NDPI_PROTOCOL_ZOOM)
- ndpi_check_zoom(ndpi_struct, flow);
-}
-
-
-void init_zoom_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
-{
- ndpi_set_bitmask_protocol_detection("Zoom", ndpi_struct, detection_bitmask, *id,
- NDPI_PROTOCOL_ZOOM,
- ndpi_search_zoom,
- NDPI_SELECTION_BITMASK_PROTOCOL_TCP_OR_UDP_WITH_PAYLOAD,
- SAVE_DETECTION_BITMASK_AS_UNKNOWN,
- ADD_TO_DETECTION_BITMASK);
- *id += 1;
-}