1 files changed, 34 insertions, 0 deletions
diff --git a/code/rtt/tcp_number_of_connections.py b/code/rtt/tcp_number_of_connections.py
new file mode 100644
index 0000000..fa8abb1
--- /dev/null
+++ b/code/rtt/tcp_number_of_connections.py
@@ -0,0 +1,34 @@
+import csv
+
+flowsTCP = []
+with open('packetdata.csv', mode='r') as csv_file:
+    csv_reader = csv.DictReader(csv_file)
+    for row in csv_reader:
+        if row["Protocol"] == 'TCP':
+            tcpFlowExists = False
+            src = row["Source"]
+            dest = row["Destination"]
+            for flow in flowsTCP:
+                if src in flow and dest in flow:
+                    tcpFlowExists = True
+                    if row["Stream index"] not in flow[2]:
+                        flow[2].append(row["Stream index"])
+                    break
+            if not tcpFlowExists:
+                flowsTCP.append([src, dest, [row["Stream index"]]])
+
+csv_file.close()
+
+flowsTCPOut = []
+
+for row in flowsTCP:
+    flowsTCPOut.append([row[0], row[1], len(row[2])])
+
+with open('tcp_number_of_connections.csv', mode='w', newline='') as tcpConnections:
+    fieldnames = ['src', 'dest', 'connectionCount']
+    writer = csv.DictWriter(tcpConnections, fieldnames=fieldnames)
+    writer.writeheader()
+    for flow in flowsTCPOut:
+        writer.writerow({'src': flow[0], 'dest': flow[1], 'connectionCount': flow[2]})
+
+tcpConnections.close()