1 files changed, 85 insertions, 0 deletions
diff --git a/python/pi_shark.py b/python/pi_shark.py
new file mode 100755
index 0000000..82b7024
--- /dev/null
+++ b/python/pi_shark.py
@@ -0,0 +1,85 @@
+""" 
+    file: pi_shark.py
+
+    Copyright (C) 2025 Private Island Networks Inc.
+
+"""
+import sys
+import argparse
+import platform
+import pyshark
+from socket import socket, AF_INET, SOCK_DGRAM
+from time import sleep
+
+DEBUG = True 
+VERSION = 0.1
+
+msg_src ="02bc000000000000"
+msg_dst = "03bc000000000001"
+failures = 0
+packet = None
+
+def play(file, dest_ipaddress, src_ipaddress):
+        
+    try:
+        sko=socket(AF_INET,SOCK_DGRAM)
+        sko.bind((src_ipaddress,0x3000))
+    except:
+        print("bind failed in Exception: {0}", sys.exc_info())
+        sko.close()
+        sys.exit()
+    
+    time_m1 = 0
+    num_pkts = 0
+    cap=pyshark.FileCapture(input_file=file, display_filter="ip.addr==192.168.3.101")
+    for pkt in cap:
+        udp_dst_port = pkt.udp.dstport.hex_value
+        num_pkts = num_pkts + 1
+        #data = pkt.data.data.__str__()
+        time = float(pkt.frame_info.get_field("frame.time_relative").__str__()[0:6])
+        if time_m1 != 0:
+            sleep(time-time_m1)
+        try:
+            sko.sendto(pkt.data.data.binary_value,(dest_ipaddress,udp_dst_port))
+        except:
+            print("send failed in Exception: {0}", sys.exc_info())
+            sko.close()
+            sys.exit()
+            
+        time_m1 = time
+        
+    print('finished. Number of packets transmitted:', num_pkts)
+                 
+def test(file, src_addr, dst_addr):
+    print("Start Automated Testing\n")
+    cap=pyshark.FileCapture(input_file=file, display_filter="ip.addr==192.168.3.101")
+    failures = 0
+    print("length of capture: ",len([packet for packet in cap]))
+    for pkt in cap:
+        if (pkt.ip.src == src_addr and pkt.data.data != msg_src):
+            print("testing packet #", pkt.number,': ', pkt.data.data, "failed")
+            failures = failures + 1
+        elif (pkt.ip.src == dst_addr and pkt.data.data != msg_dst):
+            print("testing packet #", pkt.number,': ', pkt.data.data, "failed")
+            failures = failures + 1
+            
+    if (failures):
+        print("\nfailures: ", failures)
+    else:
+        print("\nNo Failures!")
+    print("\nfinished")
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='PyShark Script', epilog='Version: ' + str(VERSION))
+    parser.add_argument('-d','--dstipaddress',default="192.168.3.100", help='Destination ip address',action='store', required=False)
+    parser.add_argument('-f','--file',default="wireshark/test.pcapng", help='Wireshark log file',action='store', required=False)
+    parser.add_argument('-m','--mode',default="play", help='mode live or file',action='store', required=False)
+    parser.add_argument('-s','--srcipaddress',default="192.168.5.40", help='Source IP address',action='store', required=False)
+    args = parser.parse_args()
+    
+    if args.mode == "play":
+        play(args.file, args.dstipaddress, args.srcipaddress)
+    elif args.mode == "test":
+        test(args.file, args.srcipaddress, args.dstipaddress)
+    else:
+        print("nothing to do, exit")