Add support for tcp/session buffer chains

[vpp.git] / src / scripts / vnet / uri / dummy_app.py

diff --git a/src/scripts/vnet/uri/dummy_app.py b/src/scripts/vnet/uri/dummy_app.py
index b80fbb2..ff00f2f 100644 (file)
--- a/src/scripts/vnet/uri/dummy_app.py
+++ b/src/scripts/vnet/uri/dummy_app.py
@@ -2,18 +2,32 @@
 
 import socket
 import sys
-import bitstring
+import time
 
 # action can be reflect or drop 
 action = "drop"
+test = 0
+
+def test_data (data, n_rcvd):
+    n_read = len (data);
+    for i in range(n_read):
+        expected = (n_rcvd + i) & 0xff
+        byte_got = ord (data[i])
+        if (byte_got != expected):
+            print("Difference at byte {}. Expected {} got {}"
+                  .format(n_rcvd + i, expected, byte_got))
+    return n_read
 
 def handle_connection (connection, client_address):
     print("Received connection from {}".format(repr(client_address)))
+    n_rcvd = 0
     try:
         while True:
             data = connection.recv(4096)
             if not data:
                 break;
+            if (test == 1):
+                n_rcvd += test_data (data, n_rcvd)
             if (action != "drop"):
                 connection.sendall(data)
     finally:
@@ -22,6 +36,7 @@ def handle_connection (connection, client_address):
 def run_server(ip, port):
     print("Starting server {}:{}".format(repr(ip), repr(port)))
     sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
     server_address = (ip, int(port))
     sock.bind(server_address)
     sock.listen(1)
@@ -39,12 +54,31 @@ def prepare_data():
 def run_client(ip, port):
     print("Starting client {}:{}".format(repr(ip), repr(port)))
     sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-    server_address = ("6.0.1.1", 1234)
+    server_address = (ip, port)
     sock.connect(server_address)
     
     data = prepare_data()
+    n_rcvd = 0
+    n_sent = len (data)
     try:
         sock.sendall(data)
+        
+        timeout = time.time() + 2
+        while n_rcvd < n_sent and time.time() < timeout:
+            tmp = sock.recv(1500)
+            tmp = bytearray (tmp)
+            n_read = len(tmp)
+            for i in range(n_read):
+                if (data[n_rcvd + i] != tmp[i]):
+                    print("Difference at byte {}. Sent {} got {}"
+                          .format(n_rcvd + i, data[n_rcvd + i], tmp[i]))
+            n_rcvd += n_read
+            
+        if (n_rcvd < n_sent or n_rcvd > n_sent):
+            print("Sent {} and got back {}".format(n_sent, n_rcvd))
+        else:
+            print("Got back what we've sent!!");
+            
     finally:
         sock.close()
     
@@ -58,8 +92,9 @@ def run(mode, ip, port):
 
 if __name__ == "__main__":
     if (len(sys.argv)) < 4:
-        raise Exception("Usage: ./dummy_app <mode> <ip> <port> [<action>]")
-    if (len(sys.argv) == 5):
+        raise Exception("Usage: ./dummy_app <mode> <ip> <port> [<action> <test>]")
+    if (len(sys.argv) == 6):
         action = sys.argv[4]
+        test = int(sys.argv[5])
 
-    run (sys.argv[1], sys.argv[2], sys.argv[3])
+    run (sys.argv[1], sys.argv[2], int(sys.argv[3]))