1 files changed, 0 insertions, 132 deletions
diff --git a/resources/traffic_scripts/dhcp/check_dhcp_request_ack.py b/resources/traffic_scripts/dhcp/check_dhcp_request_ack.py
deleted file mode 100755
index 8a3839cda7..0000000000
--- a/resources/traffic_scripts/dhcp/check_dhcp_request_ack.py
+++ /dev/null
@@ -1,132 +0,0 @@
-#!/usr/bin/env python
-# Copyright (c) 2016 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""Traffic script that sends a DHCP ACK message when DHCP REQUEST message is
-received."""
-
-import sys
-
-from scapy.layers.l2 import Ether
-from scapy.layers.inet import IP, UDP
-from scapy.layers.dhcp import BOOTP, DHCP
-
-from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
-from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
-
-
-def is_discover(pkt):
-    """If DHCP message type option is set to dhcp discover return True,
-    else return False. False is returned also if exception occurs."""
-    dhcp_discover = 1
-    try:
-        dhcp_options = pkt['BOOTP']['DHCP options'].options
-        message_type = filter(lambda x: x[0] == 'message-type',
-                              dhcp_options)
-        message_type = message_type[0][1]
-        return message_type == dhcp_discover
-    except:
-        return False
-
-
-def is_request(pkt):
-    """If DHCP message type option is DHCP REQUEST return True,
-    else return False. False is returned also if exception occurs."""
-    dhcp_request = 3
-    try:
-        dhcp_options = pkt['BOOTP']['DHCP options'].options
-        message_type = filter(lambda x: x[0] == 'message-type',
-                              dhcp_options)
-        message_type = message_type[0][1]
-        return message_type == dhcp_request
-    except:
-        return False
-
-
-def main():
-    """Main function of the script file."""
-    args = TrafficScriptArg(['server_mac', 'server_ip', 'client_ip',
-                             'client_mask', 'lease_time'])
-
-    server_if = args.get_arg('rx_if')
-    server_mac = args.get_arg('server_mac')
-    server_ip = args.get_arg('server_ip')
-
-    client_ip = args.get_arg('client_ip')
-    client_mask = args.get_arg('client_mask')
-
-    lease_time = int(args.get_arg('lease_time'))
-
-    rxq = RxQueue(server_if)
-    txq = TxQueue(server_if)
-    sent_packets = []
-
-    for _ in range(10):
-        dhcp_discover = rxq.recv(10)
-        if is_discover(dhcp_discover):
-            break
-    else:
-        raise RuntimeError("DHCP DISCOVER Rx error.")
-
-    dhcp_offer = Ether(src=server_mac, dst=dhcp_discover.src)
-    dhcp_offer /= IP(src=server_ip, dst="255.255.255.255")
-    dhcp_offer /= UDP(sport=67, dport=68)
-    dhcp_offer /= BOOTP(op=2,
-                        xid=dhcp_discover['BOOTP'].xid,
-                        yiaddr=client_ip,
-                        siaddr=server_ip,
-                        chaddr=dhcp_discover['BOOTP'].chaddr)
-    dhcp_offer_options = [("message-type", "offer"),  # Option 53
-                          ("subnet_mask", client_mask),  # Option 1
-                          ("server_id", server_ip),  # Option 54, dhcp server
-                          ("lease_time", lease_time),  # Option 51
-                          "end"]
-    dhcp_offer /= DHCP(options=dhcp_offer_options)
-
-    txq.send(dhcp_offer)
-    sent_packets.append(dhcp_offer)
-
-    max_other_pkts = 10
-    for _ in range(0, max_other_pkts):
-        dhcp_request = rxq.recv(5, sent_packets)
-        if not dhcp_request:
-            raise RuntimeError("DHCP REQUEST Rx timeout.")
-        if is_request(dhcp_request):
-            break
-    else:
-        raise RuntimeError("Max RX packet limit reached.")
-
-    # Send dhcp ack
-    dhcp_ack = Ether(src=server_mac, dst=dhcp_request.src)
-    dhcp_ack /= IP(src=server_ip, dst="255.255.255.255")
-    dhcp_ack /= UDP(sport=67, dport=68)
-    dhcp_ack /= BOOTP(op=2,
-                      xid=dhcp_request['BOOTP'].xid,
-                      yiaddr=client_ip,
-                      siaddr=server_ip,
-                      flags=dhcp_request['BOOTP'].flags,
-                      chaddr=dhcp_request['BOOTP'].chaddr)
-    dhcp_ack_options = [("message-type", "ack"),  # Option 53. 5: ACK, 6: NAK
-                        ("subnet_mask", client_mask),  # Option 1
-                        ("server_id", server_ip),  # Option 54, dhcp server
-                        ("lease_time", lease_time),  # Option 51,
-                        "end"]
-    dhcp_ack /= DHCP(options=dhcp_ack_options)
-
-    txq.send(dhcp_ack)
-    sent_packets.append(dhcp_ack)
-
-    sys.exit(0)
-
-if __name__ == "__main__":
-    main()