Added i3D and RiotGames protocol dissectors. (#1609)

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

5 files changed, 187 insertions, 0 deletions

diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h
index 18faa4034..858901110 100644
--- a/src/include/ndpi_protocol_ids.h
+++ b/src/include/ndpi_protocol_ids.h
@@ -329,6 +329,8 @@ typedef enum {
   NDPI_PROTOCOL_COLLECTD              = 298,
   NDPI_PROTOCOL_TUNNELBEAR            = 299,
   NDPI_PROTOCOL_CLOUDFLARE_WARP       = 300,
+  NDPI_PROTOCOL_I3D                   = 301, /* i3d.net: Game Hosting service */
+  NDPI_PROTOCOL_RIOTGAMES             = 302,
 
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_protocol_ids.h"
diff --git a/src/include/ndpi_protocols.h b/src/include/ndpi_protocols.h
index f7b33064a..f80a03395 100644
--- a/src/include/ndpi_protocols.h
+++ b/src/include/ndpi_protocols.h
@@ -228,6 +228,8 @@ void init_mpegdash_dissector(struct ndpi_detection_module_struct *ndpi_struct, u
 void init_rsh_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
 void init_ipsec_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
 void init_collectd_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
+void init_i3d_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
+void init_riotgames_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask);
 
 /* ndpi_main.c */
 extern u_int32_t ndpi_ip_port_hash_funct(u_int32_t ip, u_int16_t port);
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index 25b558b0a..3a1afa695 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -1928,6 +1928,14 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
                           "collectd", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
                           ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
                           ndpi_build_default_ports(ports_b, 25826, 0, 0, 0, 0) /* UDP */);
+  ndpi_set_proto_defaults(ndpi_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_I3D,
+                          "i3D", 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 */);
+  ndpi_set_proto_defaults(ndpi_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RIOTGAMES,
+                          "RiotGames", 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"
@@ -4433,6 +4441,12 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) {
   /* collectd */
   init_collectd_dissector(ndpi_str, &a, detection_bitmask);
 
+  /* i3D */
+  init_i3d_dissector(ndpi_str, &a, detection_bitmask);
+
+  /* RiotGames */
+  init_riotgames_dissector(ndpi_str, &a, detection_bitmask);
+
 #ifdef CUSTOM_NDPI_PROTOCOLS
 #include "../../../nDPI-custom/custom_ndpi_main_init.c"
 #endif
diff --git a/src/lib/protocols/i3d.c b/src/lib/protocols/i3d.c
new file mode 100644
index 000000000..8b6fdf093
--- /dev/null
+++ b/src/lib/protocols/i3d.c
@@ -0,0 +1,89 @@
+/*
+ * i3d.c
+ *
+ * Copyright (C) 2022 - ntop.org
+ *
+ * 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_I3D
+
+#include "ndpi_api.h"
+
+static void ndpi_int_i3d_add_connection(struct ndpi_detection_module_struct * const ndpi_struct,
+                                        struct ndpi_flow_struct * const flow)
+{
+  NDPI_LOG_INFO(ndpi_struct, "found i3D\n");
+  ndpi_set_detected_protocol(ndpi_struct, flow,
+                             NDPI_PROTOCOL_UNKNOWN,
+                             NDPI_PROTOCOL_I3D,
+                             NDPI_CONFIDENCE_DPI);
+}
+
+void ndpi_search_i3d(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, "searching i3D\n");
+
+  /*
+   * i3D offers a lot of services.
+   * The patterns below are mostly used by dedicated game servers.
+   */
+
+  if (packet->payload_packet_len < 74)
+  {
+    NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+    return;
+  }
+
+  if ((ntohl(get_u_int32_t(packet->payload, 0)) == 0x00010046 ||
+       ntohl(get_u_int32_t(packet->payload, 0)) == 0x00020046) &&
+      ntohl(get_u_int32_t(packet->payload, 4)) == 0x0003cfa8)
+  {
+    ndpi_int_i3d_add_connection(ndpi_struct, flow);
+    return;
+  }
+
+  if ((ntohs(get_u_int16_t(packet->payload, 0)) == 0x9078 ||
+       ntohs(get_u_int16_t(packet->payload, 0)) == 0x9067) &&
+      ntohl(get_u_int32_t(packet->payload, 8)) == 0x0003cfa9 &&
+      ntohl(get_u_int32_t(packet->payload, 12)) == 0xbede0003)
+  {
+    ndpi_int_i3d_add_connection(ndpi_struct, flow);
+    return;
+  }
+
+  NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+  return;
+}
+
+void init_i3d_dissector(struct ndpi_detection_module_struct *ndpi_struct,
+                        u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
+{
+  ndpi_set_bitmask_protocol_detection("i3D", ndpi_struct, detection_bitmask, *id,
+    NDPI_PROTOCOL_I3D,
+    ndpi_search_i3d,
+    NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD,
+    SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+    ADD_TO_DETECTION_BITMASK
+  );
+
+  *id += 1;
+}
diff --git a/src/lib/protocols/riotgames.c b/src/lib/protocols/riotgames.c
new file mode 100644
index 000000000..31c9889f5
--- /dev/null
+++ b/src/lib/protocols/riotgames.c
@@ -0,0 +1,80 @@
+/*
+ * riotgames.c
+ *
+ * Copyright (C) 2022 - ntop.org
+ *
+ * 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_RIOTGAMES
+
+#include "ndpi_api.h"
+
+static void ndpi_int_riotgames_add_connection(struct ndpi_detection_module_struct * const ndpi_struct,
+                                              struct ndpi_flow_struct * const flow)
+{
+  NDPI_LOG_INFO(ndpi_struct, "found RiotGames\n");
+  ndpi_set_detected_protocol(ndpi_struct, flow,
+                             NDPI_PROTOCOL_UNKNOWN,
+                             NDPI_PROTOCOL_RIOTGAMES,
+                             NDPI_CONFIDENCE_DPI);
+}
+
+void ndpi_search_riotgames(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, "searching RiotGames\n");
+
+  if (packet->payload_packet_len == 8 &&
+      ntohl(get_u_int32_t(packet->payload, 0)) == 0x1337cafe)
+  {
+    ndpi_int_riotgames_add_connection(ndpi_struct, flow);
+    return;
+  }
+
+  if (packet->payload_packet_len > 8 &&
+      ntohl(get_u_int32_t(packet->payload, packet->payload_packet_len - 8)) == 0xaaaaaaaa &&
+      ntohl(get_u_int32_t(packet->payload, packet->payload_packet_len - 4)) == 0xbbbbbbbb)
+  {
+    ndpi_int_riotgames_add_connection(ndpi_struct, flow);
+    return;
+  }
+
+  /*
+   * Please add new patterns for games made by RiotGames here
+   */
+
+  NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+  return;
+}
+
+void init_riotgames_dissector(struct ndpi_detection_module_struct *ndpi_struct,
+                              u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
+{
+  ndpi_set_bitmask_protocol_detection("RiotGames", ndpi_struct, detection_bitmask, *id,
+    NDPI_PROTOCOL_RIOTGAMES,
+    ndpi_search_riotgames,
+    NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD,
+    SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+    ADD_TO_DETECTION_BITMASK
+  );
+
+  *id += 1;
+}