Added Ookla cache

1 files changed, 66 insertions, 0 deletions

diff --git a/src/lib/protocols/ookla.c b/src/lib/protocols/ookla.c
new file mode 100644
index 000000000..b1eb295a7
--- /dev/null
+++ b/src/lib/protocols/ookla.c
@@ -0,0 +1,66 @@
+/*
+ * ookla.c
+ *
+ * Copyright (C) 2018 - 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_OOKLA
+
+#include "ndpi_api.h"
+#include "lruc.h"
+
+
+void ndpi_search_ookla(struct ndpi_detection_module_struct* ndpi_struct, struct ndpi_flow_struct* flow) {
+  struct ndpi_packet_struct* packet = &flow->packet;
+  u_int32_t addr = 0;
+  void *value;
+  
+  NDPI_LOG_DBG(ndpi_struct, "Ookla detection\n");
+  
+  if(packet->tcp->source == htons(8080))
+    addr = packet->iph->saddr;
+  else if(packet->tcp->dest == htons(8080))
+    addr = packet->iph->daddr;
+  else
+    goto ookla_exclude;
+  
+  if(ndpi_struct->ookla_cache != NULL) {
+    if(lruc_get(ndpi_struct->ookla_cache, &addr, sizeof(addr), &value) == LRUC_NO_ERROR) {
+      /* Don't remove it as it can be used for other connections */
+      NDPI_LOG_INFO(ndpi_struct, "found ookla tcp connection\n");
+      ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_OOKLA, NDPI_PROTOCOL_UNKNOWN);
+      return;
+    }	
+  }
+
+ ookla_exclude:
+  NDPI_EXCLUDE_PROTO(ndpi_struct, flow);  
+}
+
+void init_ookla_dissector(struct ndpi_detection_module_struct *ndpi_struct,
+			  u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) {
+  ndpi_set_bitmask_protocol_detection("Ookla", ndpi_struct, detection_bitmask, *id,
+				      NDPI_PROTOCOL_OOKLA,
+				      ndpi_search_ookla,
+				      NDPI_SELECTION_BITMASK_PROTOCOL_TCP,
+				      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+				      ADD_TO_DETECTION_BITMASK);
+
+  *id += 1;
+}
+