X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Ftraffic_scripts%2Fdhcp%2Fsend_and_check_proxy_messages.py;fp=resources%2Ftraffic_scripts%2Fdhcp%2Fsend_dhcp_messages.py;h=27f148c9008f9977bcc7cc93b16b7eb30dfd692a;hb=91961994a4791be18b0a1f2dda2e5162823670f5;hp=7881c24afd32320eba8a7f8cd946f98513fbe63e;hpb=79191b057fe2f8829753c0a51cf33bf7aeeac5ac;p=csit.git diff --git a/resources/traffic_scripts/dhcp/send_dhcp_messages.py b/resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py similarity index 83% rename from resources/traffic_scripts/dhcp/send_dhcp_messages.py rename to resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py index 7881c24afd..27f148c900 100755 --- a/resources/traffic_scripts/dhcp/send_dhcp_messages.py +++ b/resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py @@ -25,27 +25,18 @@ from resources.libraries.python.PacketVerifier import RxQueue, TxQueue from resources.libraries.python.TrafficScriptArg import TrafficScriptArg -def dhcp_discover(args): - """Send DHCP DISCOVER packet.""" - - tx_if = args.get_arg('tx_if') - rx_if = args.get_arg('rx_if') +def dhcp_discover(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, proxy_ip, + client_mac): + """Send and check DHCP DISCOVER proxy packet.""" rxq = RxQueue(rx_if) txq = TxQueue(tx_if) - tx_src_ip = "0.0.0.0" - tx_dst_ip = "255.255.255.255" - - server_ip = args.get_arg('server_ip') - proxy_ip = args.get_arg('proxy_ip') - client_mac = args.get_arg('client_mac') - sent_packets = [] dhcp_discover = Ether(src=client_mac, dst="ff:ff:ff:ff:ff:ff") / \ IP(src=tx_src_ip, dst=tx_dst_ip) / \ - UDP(sport=68, dport=67) / \ + UDP(sport=UDP_SERVICES.bootpc, dport=UDP_SERVICES.bootps) / \ BOOTP(op=1,) / \ DHCP(options=[("message-type", "discover"), "end"]) @@ -81,29 +72,22 @@ def dhcp_discover(args): if ether[DHCP].options[0][1] != 1: # 1 - DISCOVER message raise RuntimeError("DHCP DISCOVER message error.") print "DHCP DISCOVER message OK." - dhcp_offer(args, option_82) + return option_82 -def dhcp_offer(args, option_82): - """Send DHCP OFFER packet.""" - rx_if = args.get_arg('tx_if') - tx_if = args.get_arg('rx_if') +def dhcp_offer(rx_if, tx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, + server_mac, option_82): + """Send and check DHCP OFFER proxy packet.""" rxq = RxQueue(rx_if) txq = TxQueue(tx_if) - tx_dst_ip = "255.255.255.255" - server_ip = args.get_arg('server_ip') - server_mac = args.get_arg('server_mac') - client_ip = args.get_arg('client_ip') - proxy_ip = args.get_arg('proxy_ip') - sent_packets = [] dhcp_offer = Ether(src=server_mac, dst="ff:ff:ff:ff:ff:ff") / \ IP(src=server_ip, dst=tx_dst_ip) / \ - UDP(sport=67, dport=68) / \ + UDP(sport=UDP_SERVICES.bootps, dport=UDP_SERVICES.bootpc) / \ BOOTP(op=2, yiaddr=client_ip, siaddr=server_ip) / \ @@ -148,29 +132,20 @@ def dhcp_offer(args, option_82): if ether[DHCP].options[0][1] != 2: # 2 - OFFER message raise RuntimeError("DHCP OFFER message error.") print "DHCP OFFER message OK." - dhcp_request(args) -def dhcp_request(args): - """Send DHCP REQUEST packet.""" - - tx_if = args.get_arg('tx_if') - rx_if = args.get_arg('rx_if') +def dhcp_request(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, proxy_ip, + client_ip, client_mac): + """Send and check DHCP REQUEST proxy packet.""" rxq = RxQueue(rx_if) txq = TxQueue(tx_if) - tx_dst_ip = "255.255.255.255" - server_ip = args.get_arg('server_ip') - client_ip = args.get_arg('client_ip') - client_mac = args.get_arg('client_mac') - proxy_ip = args.get_arg('proxy_ip') - sent_packets = [] dhcp_request = Ether(src=client_mac, dst="ff:ff:ff:ff:ff:ff") / \ - IP(src="0.0.0.0", dst=tx_dst_ip) / \ - UDP(sport=68, dport=67) / \ + IP(src=tx_src_ip, dst=tx_dst_ip) / \ + UDP(sport=UDP_SERVICES.bootpc, dport=UDP_SERVICES.bootps) / \ BOOTP(op=1, giaddr=proxy_ip, siaddr=server_ip) / \ @@ -213,35 +188,26 @@ def dhcp_request(args): if ether[DHCP].options[3][0] != 'relay_agent_Information': # option 82 raise RuntimeError("Relay agent information error.") - option_82 = ether[DHCP].options[3][1] if ether[DHCP].options[0][1] != 3: # 2 - REQUEST message raise RuntimeError("DHCP REQUEST message error.") print "DHCP REQUEST message: OK." - dhcp_ack(args, option_82) - -def dhcp_ack(args, option_82): - """Send DHCP ACK packet.""" - rx_if = args.get_arg('tx_if') - tx_if = args.get_arg('rx_if') +def dhcp_ack(rx_if, tx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, + server_mac, option_82): + """Send and check DHCP ACK proxy packet.""" rxq = RxQueue(rx_if) txq = TxQueue(tx_if) - tx_dst_ip = "255.255.255.255" - server_ip = args.get_arg('server_ip') - server_mac = args.get_arg('server_mac') - client_ip = args.get_arg('client_ip') - proxy_ip = args.get_arg('proxy_ip') lease_time = 43200 # 12 hours sent_packets = [] dhcp_ack = Ether(src=server_mac, dst="ff:ff:ff:ff:ff:ff") / \ IP(src=server_ip, dst=tx_dst_ip) / \ - UDP(sport=67, dport=68) / \ + UDP(sport=UDP_SERVICES.bootps, dport=UDP_SERVICES.bootpc) / \ BOOTP(op=2, yiaddr=client_ip, siaddr=server_ip) / \ @@ -294,12 +260,38 @@ def dhcp_ack(args, option_82): def main(): - """Send DHCP messages.""" + """Send DHCP proxy messages.""" args = TrafficScriptArg(['server_ip', 'server_mac', 'client_ip', 'client_mac', 'proxy_ip']) - dhcp_discover(args) + tx_if = args.get_arg('tx_if') + rx_if = args.get_arg('rx_if') + + tx_src_ip = "0.0.0.0" + tx_dst_ip = "255.255.255.255" + + server_ip = args.get_arg('server_ip') + client_ip = args.get_arg('client_ip') + proxy_ip = args.get_arg('proxy_ip') + client_mac = args.get_arg('client_mac') + server_mac = args.get_arg('server_mac') + + # DHCP DISCOVER + option_82 = dhcp_discover(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, + proxy_ip, client_mac) + + # DHCP OFFER + dhcp_offer(tx_if, rx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, + server_mac, option_82) + + # DHCP REQUEST + dhcp_request(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, proxy_ip, + client_ip, client_mac) + + # DHCP ACK + dhcp_ack(tx_if, rx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, + server_mac, option_82) sys.exit(0)