1 files changed, 44 insertions, 0 deletions
diff --git a/scripts/stl/udp_1pkt_tuple_gen.py b/scripts/stl/udp_1pkt_tuple_gen.py
new file mode 100644
index 00000000..33915cc0
--- /dev/null
+++ b/scripts/stl/udp_1pkt_tuple_gen.py
@@ -0,0 +1,44 @@
+from trex_stl_lib.api import *
+
+class STLS1(object):
+
+    def __init__ (self):
+        self.fsize  =64;
+
+    def create_stream (self):
+        # create a base packet and pad it to size
+        size = self.fsize - 4; # no FCS
+
+        base_pkt = Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=12,sport=1025)
+
+        pad = max(0, size - len(base_pkt)) * 'x'
+
+        vm = CTRexScRaw( [   CTRexVmDescTupleGen ( ip_min="16.0.0.1", ip_max="16.0.0.2", 
+                                                   port_min=1025, port_max=65535,
+                                                    name="tuple"), # define tuple gen 
+
+                             CTRexVmDescWrFlowVar (fv_name="tuple.ip", pkt_offset= "IP.src" ), # write ip to packet IP.src
+                             CTRexVmDescFixIpv4(offset = "IP"),                                # fix checksum
+                             CTRexVmDescWrFlowVar (fv_name="tuple.port", pkt_offset= "UDP.sport" )  #write udp.port
+                                  ]
+                              );
+
+        pkt = STLPktBuilder(pkt = base_pkt/pad,
+                            vm = vm)
+
+        return STLStream(packet = pkt,
+                         mode = STLTXCont())
+
+
+
+    def get_streams (self, direction = 0):
+        # create 1 stream 
+        return [ self.create_stream() ]
+
+
+# dynamic load - used for trex console or simulator
+def register():
+    return STLS1()
+
+
+