Add LoL: Wild Rift detection (#2356)

5 files changed, 85 insertions, 0 deletions

diff --git a/src/include/ndpi_private.h b/src/include/ndpi_private.h
index cba593e4e..38b2fbf25 100644
--- a/src/include/ndpi_private.h
+++ b/src/include/ndpi_private.h
@@ -915,6 +915,7 @@ void init_netease_games_dissector(struct ndpi_detection_module_struct *ndpi_stru
 void init_pathofexile_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
 void init_pfcp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
 void init_flute_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
+void init_lolwildrift_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
 
 #endif
 
diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h
index 95ccd9f37..a84bda3f1 100644
--- a/src/include/ndpi_protocol_ids.h
+++ b/src/include/ndpi_protocol_ids.h
@@ -435,6 +435,7 @@ typedef enum {
   NDPI_PROTOCOL_GOOGLE_CALL           = 404, /* Voip/audio/video calls from Google Chat/Meet/... */
   NDPI_PROTOCOL_PFCP                  = 405,
   NDPI_PROTOCOL_FLUTE                 = 406,
+  NDPI_PROTOCOL_LOLWILDRIFT           = 407,
 
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_protocol_ids.h"
diff --git a/src/include/ndpi_typedefs.h b/src/include/ndpi_typedefs.h
index 6c97d419e..f8ac2383a 100644
--- a/src/include/ndpi_typedefs.h
+++ b/src/include/ndpi_typedefs.h
@@ -911,6 +911,9 @@ struct ndpi_flow_udp_struct {
   u_int32_t quic_0rtt_found:1;
   u_int32_t quic_vn_pair:1;
 
+  /* NDPI_PROTOCOL_LOLWILDRIFT */
+  u_int32_t lolwildrift_stage:1;
+
   /* NDPI_PROTOCOL_EPICGAMES */
   u_int32_t epicgames_stage:1;
   u_int32_t epicgames_word;
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index 2d86be507..a3af95174 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -2279,6 +2279,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
 			  "FLUTE", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
 			  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_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_LOLWILDRIFT,
+			  "LoLWildRift", NDPI_PROTOCOL_CATEGORY_GAME,
+			  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"
@@ -6141,6 +6145,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) {
   /* File Delivery over Unidirectional Transport */
   init_flute_dissector(ndpi_str, &a);
 
+  /* League of Legends: Wild Rift */
+  init_lolwildrift_dissector(ndpi_str, &a);
+
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_main_init.c"
 #endif
diff --git a/src/lib/protocols/lol_wild_rift.c b/src/lib/protocols/lol_wild_rift.c
new file mode 100644
index 000000000..214c74dcb
--- /dev/null
+++ b/src/lib/protocols/lol_wild_rift.c
@@ -0,0 +1,73 @@
+/*
+ * lol_wild_rift.c
+ *
+ * League of Legends: Wild Rift
+ * 
+ * Copyright (C) 2024 - ntop.org
+ * Copyright (C) 2024 - V.G <jacendi@protonmail.com>
+ *
+ * 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_LOLWILDRIFT
+
+#include "ndpi_api.h"
+#include "ndpi_private.h"
+
+static void ndpi_search_lolwildrift(struct ndpi_detection_module_struct *ndpi_struct,
+                                    struct ndpi_flow_struct *flow)
+{
+  struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;
+
+  NDPI_LOG_DBG(ndpi_struct, "search League of Legends: Wild Rift\n");
+
+  if (packet->payload_packet_len == 69 &&
+      ntohl(get_u_int32_t(packet->payload, 0)) == 0x4000000)
+  {
+    flow->l4.udp.lolwildrift_stage = 1;
+    return;
+  }
+
+  if (flow->l4.udp.lolwildrift_stage == 1 &&
+      packet->payload_packet_len == 359 &&
+      ntohl(get_u_int32_t(packet->payload, 0)) == 0x10000000)
+  {
+    NDPI_LOG_INFO(ndpi_struct, "found League of Legends: Wild Rift\n");
+    ndpi_set_detected_protocol(ndpi_struct, flow,
+                               NDPI_PROTOCOL_LOLWILDRIFT, NDPI_PROTOCOL_UNKNOWN,
+                               NDPI_CONFIDENCE_DPI);
+    return;
+  }
+
+  NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+}
+
+void init_lolwildrift_dissector(struct ndpi_detection_module_struct *ndpi_struct,
+                                u_int32_t *id)
+{
+  ndpi_set_bitmask_protocol_detection("LoLWildRift", ndpi_struct, *id,
+                                      NDPI_PROTOCOL_LOLWILDRIFT,
+                                      ndpi_search_lolwildrift,
+                                      NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD,
+                                      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+                                      ADD_TO_DETECTION_BITMASK);
+
+  *id += 1;
+}