From d2c0b9872d6f57e06a7171a2fcdbfb9b830d9fe9 Mon Sep 17 00:00:00 2001
From: Ravi Kerur <ravi.kerur@viasat.com>
Date: Wed, 25 Sep 2019 12:41:15 -0700
Subject: Initial Zoom detection based on IP and ports.
Following IP and ports are reported by Zoom support
to open up in firewall.
https://support.zoom.us/hc/en-us/articles/201362683-Network-Firewall-or-Proxy-Server-Settings-for-Zoom
Signed-off-by: Ravi Kerur <ravi.kerur@viasat.com>
---
src/include/ndpi_protocol_ids.h | 2 +-
src/include/ndpi_protocols.h | 1 +
src/lib/ndpi_content_match.c.inc | 60 +++++++++++++++++-
src/lib/ndpi_main.c | 7 ++-
src/lib/protocols/zoom.c | 130 +++++++++++++++++++++++++++++++++++++++
5 files changed, 196 insertions(+), 4 deletions(-)
create mode 100644 src/lib/protocols/zoom.c
(limited to 'src')
diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h
index c22c6f815..ac0ff42fc 100644
--- a/src/include/ndpi_protocol_ids.h
+++ b/src/include/ndpi_protocol_ids.h
@@ -223,7 +223,7 @@ typedef enum {
NDPI_PROTOCOL_VEVO = 186,
NDPI_PROTOCOL_PANDORA = 187,
NDPI_PROTOCOL_QUIC = 188, /* Andrea Buscarinu <andrea.buscarinu@gmail.com> - Michele Campus <michelecampus5@gmail.com> */
- NDPI_PROTOCOL_FREE_189 = 189,
+ NDPI_PROTOCOL_ZOOM = 189, /* Zoom video conference. */
NDPI_PROTOCOL_EAQ = 190,
NDPI_PROTOCOL_OOKLA = 191,
NDPI_PROTOCOL_AMQP = 192,
diff --git a/src/include/ndpi_protocols.h b/src/include/ndpi_protocols.h
index 5091b458d..f1dddd301 100644
--- a/src/include/ndpi_protocols.h
+++ b/src/include/ndpi_protocols.h
@@ -372,5 +372,6 @@ void init_modbus_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_i
void init_line_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
void init_wireguard_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
void init_targus_getdata_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
+void init_zoom_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
#endif /* __NDPI_PROTOCOLS_H__ */
diff --git a/src/lib/ndpi_content_match.c.inc b/src/lib/ndpi_content_match.c.inc
index 1693db9fd..fef2fd4e4 100644
--- a/src/lib/ndpi_content_match.c.inc
+++ b/src/lib/ndpi_content_match.c.inc
@@ -8220,6 +8220,62 @@ static ndpi_network host_protocol_list[] = {
/* Line */
{ 0x7DD1FC00 /* 125.209.252.0/24 */, 24, NDPI_PROTOCOL_LINE },
+ /* Zoom video conference app. */
+ { 0x03501480 /* 3.80.20.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x03787900 /* 3.120.121.0/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x03682280 /* 3.104.34.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x03D04800 /* 3.208.72.0/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x03D3F100 /* 3.211.241.0/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x04227D80 /* 4.34.125.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x04234080 /* 4.35.64.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x08058000 /* 8.5.128.0/23 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x0D340680 /* 13.52.6.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x0D349200 /* 13.52.146.0/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x0D726AA6 /* 13.114.106.166/32 */, 32, NDPI_PROTOCOL_ZOOM },
+ { 0x12CD5D80 /* 18.205.93.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x32EFCA00 /* 50.239.202.0/23 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x32EFCC00 /* 50.239.204.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x343D6480 /* 52.61.100.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x34519780 /* 52.81.151.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x34C56115 /* 52.197.97.21/32 */, 32, NDPI_PROTOCOL_ZOOM },
+ { 0x34CA3EC0 /* 52.202.62.192/26 */, 26, NDPI_PROTOCOL_ZOOM },
+ { 0x34D7A800 /* 52.215.168.0/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x40454A00 /* 64.69.74.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x407D3E00 /* 64.125.62.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x40D39000 /* 64.211.144.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x41279800 /* 65.39.152.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x45AE3900 /* 69.174.57.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x45AE6C00 /* 69.174.108.0/22 */, 22, NDPI_PROTOCOL_ZOOM },
+ { 0x634F1400 /* 99.79.20.0/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0x677AA600 /* 103.122.166.0/23 */, 23, NDPI_PROTOCOL_ZOOM },
+ { 0x6D5EA000 /* 109.94.160.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0x736E9AC0 /* 115.110.154.192/26 */, 26, NDPI_PROTOCOL_ZOOM },
+ { 0x737238C0 /* 115.114.56.192/26 */, 26, NDPI_PROTOCOL_ZOOM },
+ { 0x73727300 /* 115.114.115.0/26 */, 26, NDPI_PROTOCOL_ZOOM },
+ { 0x73728300 /* 115.114.131.0/26 */, 26, NDPI_PROTOCOL_ZOOM },
+ { 0x781D9400 /* 120.29.148.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xA0013880 /* 160.1.56.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0xA1C78800 /* 161.199.136.0/22 */, 22, NDPI_PROTOCOL_ZOOM },
+ { 0xA20CE800 /* 162.12.232.0/22 */, 22, NDPI_PROTOCOL_ZOOM },
+ { 0xA2FF2400 /* 162.255.36.0/22 */, 22, NDPI_PROTOCOL_ZOOM },
+ { 0xA5FE5800 /* 165.254.88.0/23 */, 23, NDPI_PROTOCOL_ZOOM },
+ { 0xC0CC0C00 /* 192.204.12.0/22 */, 22, NDPI_PROTOCOL_ZOOM },
+ { 0xCAB1CF80 /* 202.177.207.128/27 */, 27, NDPI_PROTOCOL_ZOOM },
+ { 0xCAB1D560 /* 202.177.213.96/27 */, 27, NDPI_PROTOCOL_ZOOM },
+ { 0xCC506800 /* 204.80.104.0/21 */, 21, NDPI_PROTOCOL_ZOOM },
+ { 0xCC8D1C00 /* 204.141.28.0/22 */, 22, NDPI_PROTOCOL_ZOOM },
+ { 0xCFE28400 /* 207.226.132.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xD109D300 /* 209.9.211.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xD109D700 /* 209.9.215.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xD2393700 /* 210.57.55.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xD5139000 /* 213.19.144.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xD5139900 /* 213.19.153.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xD5F48C00 /* 213.244.140.0/24 */, 24, NDPI_PROTOCOL_ZOOM },
+ { 0xDD7A5840 /* 221.122.88.64/27 */, 27, NDPI_PROTOCOL_ZOOM },
+ { 0xDD7A5880 /* 221.122.88.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ { 0xDD7A5980 /* 221.122.89.128/25 */, 25, NDPI_PROTOCOL_ZOOM },
+ /* 2620:123:2000::/44 IPV6 */
+
{ 0x0, 0, 0 }
};
@@ -8593,7 +8649,9 @@ ndpi_protocol_match host_match[] = {
{ "hotspotshield.com", NULL, "hotspotshield" TLD, "HotspotShield", NDPI_PROTOCOL_HOTSPOT_SHIELD, NDPI_PROTOCOL_CATEGORY_VPN, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS },
{ ".northghost.com", NULL, "\\.northghost" TLD, "HotspotShield", NDPI_PROTOCOL_HOTSPOT_SHIELD, NDPI_PROTOCOL_CATEGORY_VPN, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS },
- { ".webex.com", NULL, "\\.webex" TLD, "Webex", NDPI_PROTOCOL_WEBEX, NDPI_PROTOCOL_CATEGORY_VOIP, NDPI_PROTOCOL_ACCEPTABLE },
+ { ".webex.com", NULL, "\\.webex" TLD, "Webex", NDPI_PROTOCOL_WEBEX, NDPI_PROTOCOL_CATEGORY_VOIP, NDPI_PROTOCOL_ACCEPTABLE },
+ { ".zoom.us", NULL, "\\.zoom" TLD, "Zoom", NDPI_PROTOCOL_ZOOM, NDPI_PROTOCOL_CATEGORY_VIDEO, NDPI_PROTOCOL_ACCEPTABLE },
+ { ".cloudfront.net", NULL, "\\.cloudfront" TLD, "Zoom", NDPI_PROTOCOL_ZOOM, NDPI_PROTOCOL_CATEGORY_VIDEO, NDPI_PROTOCOL_ACCEPTABLE },
{ ".ocsdomain.com", NULL, "\\.ocsdomain" TLD, "OCS", NDPI_PROTOCOL_OCS, NDPI_PROTOCOL_CATEGORY_MEDIA, NDPI_PROTOCOL_FUN },
{ "ocs.fr", NULL, "ocs" TLD, "OCS", NDPI_PROTOCOL_OCS, NDPI_PROTOCOL_CATEGORY_MEDIA, NDPI_PROTOCOL_FUN },
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index df40c5769..cd12ee6df 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -1249,9 +1249,9 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
no_master, "PcAnywhere", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
- ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_FREE_189,
+ ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_ZOOM,
0 /* can_have_a_subprotocol */, no_master,
- no_master, "Free189", NDPI_PROTOCOL_CATEGORY_VOIP,
+ no_master, "Zoom", NDPI_PROTOCOL_CATEGORY_VIDEO,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_WHATSAPP_FILES,
@@ -3309,6 +3309,9 @@ void ndpi_set_protocol_detection_bitmask2(struct ndpi_detection_module_struct *n
/* Targus Getdata */
init_targus_getdata_dissector(ndpi_struct, &a, detection_bitmask);
+ /* ZOOM */
+ init_zoom_dissector(ndpi_struct, &a, detection_bitmask);
+
/* ----------------------------------------------------------------- */
ndpi_struct->callback_buffer_size = a;
diff --git a/src/lib/protocols/zoom.c b/src/lib/protocols/zoom.c
new file mode 100644
index 000000000..341fb1c0f
--- /dev/null
+++ b/src/lib/protocols/zoom.c
@@ -0,0 +1,130 @@
+/*
+ * 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;
+}
--
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