import socket
import struct
-from framework import VppTestCase, VppTestRunner
+from framework import VppTestCase, VppTestRunner, running_extended_tests
from vpp_neighbor import VppNeighbor
from vpp_ip_route import find_route, VppIpTable
from util import mk_ll_addr
-
from scapy.layers.l2 import Ether, getmacbyip, ARP
from scapy.layers.inet import IP, UDP, ICMP
-from scapy.layers.inet6 import IPv6, in6_getnsmac, in6_mactoifaceid
+from scapy.layers.inet6 import IPv6, in6_getnsmac
+from scapy.utils6 import in6_mactoifaceid
from scapy.layers.dhcp import DHCP, BOOTP, DHCPTypes
from scapy.layers.dhcp6 import DHCP6, DHCP6_Solicit, DHCP6_RelayForward, \
DHCP6_RelayReply, DHCP6_Advertise, DHCP6OptRelayMsg, DHCP6OptIfaceId, \
from socket import AF_INET, AF_INET6
from scapy.utils import inet_pton, inet_ntop
from scapy.utils6 import in6_ptop
-from util import mactobinary
+from vpp_papi import mac_pton
DHCP4_CLIENT_PORT = 68
DHCP4_SERVER_PORT = 67
def setUp(self):
super(TestDHCP, self).setUp()
- # create 3 pg interfaces
- self.create_pg_interfaces(range(4))
+ # create 6 pg interfaces for pg0 to pg5
+ self.create_pg_interfaces(range(6))
self.tables = []
- # pg0 and 1 are IP configured in VRF 0 and 1.
- # pg2 and 3 are non IP-configured in VRF 0 and 1
+ # pg0 to 2 are IP configured in VRF 0, 1 and 2.
+ # pg3 to 5 are non IP-configured in VRF 0, 1 and 2.
table_id = 0
for table_id in range(1, 4):
tbl4 = VppIpTable(self, table_id)
self.tables.append(tbl6)
table_id = 0
- for i in self.pg_interfaces[:2]:
+ for i in self.pg_interfaces[:3]:
i.admin_up()
i.set_table_ip4(table_id)
i.set_table_ip6(table_id)
table_id += 1
table_id = 0
- for i in self.pg_interfaces[2:]:
+ for i in self.pg_interfaces[3:]:
i.admin_up()
i.set_table_ip4(table_id)
i.set_table_ip6(table_id)
table_id += 1
def tearDown(self):
- for i in self.pg_interfaces[:2]:
+ for i in self.pg_interfaces[:3]:
i.unconfig_ip4()
i.unconfig_ip6()
i.admin_down()
super(TestDHCP, self).tearDown()
- def send_and_assert_no_replies(self, intf, pkts, remark):
- intf.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- for i in self.pg_interfaces:
- i.assert_nothing_captured(remark=remark)
-
def verify_dhcp_has_option(self, pkt, option, value):
dhcp = pkt[DHCP]
found = False
self.assertTrue(found)
- def validate_relay_options(self, pkt, intf, ip_addr, fib_id, oui):
+ def validate_relay_options(self, pkt, intf, ip_addr, vpn_id, fib_id, oui):
dhcp = pkt[DHCP]
found = 0
data = []
+ id_len = len(vpn_id)
for i in dhcp.options:
if type(i) is tuple:
data = i[1]
if oui != 0:
self.assertEqual(len(data), 24)
+ elif len(vpn_id) > 0:
+ self.assertEqual(len(data), len(vpn_id)+17)
else:
self.assertEqual(len(data), 12)
self.assertEqual(data[11], claddr[3])
if oui != 0:
- # sub-option 151 encodes the 3 byte oui
- # and the 4 byte fib_id
+ # sub-option 151 encodes vss_type 1,
+ # the 3 byte oui and the 4 byte fib_id
+ self.assertEqual(id_len, 0)
self.assertEqual(ord(data[12]), 151)
self.assertEqual(ord(data[13]), 8)
self.assertEqual(ord(data[14]), 1)
self.assertEqual(ord(data[22]), 152)
self.assertEqual(ord(data[23]), 0)
+ if id_len > 0:
+ # sub-option 151 encode vss_type of 0
+ # followerd by vpn_id in ascii
+ self.assertEqual(oui, 0)
+ self.assertEqual(ord(data[12]), 151)
+ self.assertEqual(ord(data[13]), id_len+1)
+ self.assertEqual(ord(data[14]), 0)
+ self.assertEqual(data[15:15+id_len], vpn_id)
+
+ # VSS control sub-option
+ self.assertEqual(ord(data[15+len(vpn_id)]), 152)
+ self.assertEqual(ord(data[16+len(vpn_id)]), 0)
+
found = 1
self.assertTrue(found)
found = True
self.assertTrue(found)
- def verify_dhcp_offer(self, pkt, intf, fib_id=0, oui=0):
+ def verify_dhcp_offer(self, pkt, intf, vpn_id="", fib_id=0, oui=0):
ether = pkt[Ether]
self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff")
self.assertEqual(ether.src, intf.local_mac)
self.verify_dhcp_msg_type(pkt, "offer")
data = self.validate_relay_options(pkt, intf, intf.local_ip4,
- fib_id, oui)
+ vpn_id, fib_id, oui)
def verify_orig_dhcp_pkt(self, pkt, intf):
ether = pkt[Ether]
self.assertEqual(udp.dport, DHCP4_SERVER_PORT)
self.assertEqual(udp.sport, DHCP4_CLIENT_PORT)
- def verify_orig_dhcp_discover(self, pkt, intf, hostname, client_id=None):
+ def verify_orig_dhcp_discover(self, pkt, intf, hostname, client_id=None,
+ broadcast=1):
self.verify_orig_dhcp_pkt(pkt, intf)
self.verify_dhcp_msg_type(pkt, "discover")
bootp = pkt[BOOTP]
self.assertEqual(bootp.ciaddr, "0.0.0.0")
self.assertEqual(bootp.giaddr, "0.0.0.0")
- self.assertEqual(bootp.flags, 0x8000)
+ if broadcast:
+ self.assertEqual(bootp.flags, 0x8000)
+ else:
+ self.assertEqual(bootp.flags, 0x0000)
- def verify_orig_dhcp_request(self, pkt, intf, hostname, ip):
+ def verify_orig_dhcp_request(self, pkt, intf, hostname, ip,
+ broadcast=1):
self.verify_orig_dhcp_pkt(pkt, intf)
self.verify_dhcp_msg_type(pkt, "request")
bootp = pkt[BOOTP]
self.assertEqual(bootp.ciaddr, "0.0.0.0")
self.assertEqual(bootp.giaddr, "0.0.0.0")
- self.assertEqual(bootp.flags, 0x8000)
+ if broadcast:
+ self.assertEqual(bootp.flags, 0x8000)
+ else:
+ self.assertEqual(bootp.flags, 0x0000)
def verify_relayed_dhcp_discover(self, pkt, intf, src_intf=None,
fib_id=0, oui=0,
+ vpn_id="",
dst_mac=None, dst_ip=None):
if not dst_mac:
dst_mac = intf.remote_mac
data = self.validate_relay_options(pkt, src_intf,
src_intf.local_ip4,
+ vpn_id,
fib_id, oui)
return data
def verify_dhcp6_solicit(self, pkt, intf,
peer_ip, peer_mac,
+ vpn_id="",
fib_id=0,
oui=0,
dst_mac=None,
self.assertEqual(cll.lltype, 1)
self.assertEqual(cll.clladdr, peer_mac)
+ id_len = len(vpn_id)
+
if fib_id != 0:
+ self.assertEqual(id_len, 0)
vss = pkt[DHCP6OptVSS]
self.assertEqual(vss.optlen, 8)
self.assertEqual(vss.type, 1)
self.assertEqual(ord(vss.data[5]), 0)
self.assertEqual(ord(vss.data[6]), fib_id)
+ if id_len > 0:
+ self.assertEqual(oui, 0)
+ vss = pkt[DHCP6OptVSS]
+ self.assertEqual(vss.optlen, id_len+1)
+ self.assertEqual(vss.type, 0)
+ self.assertEqual(vss.data[0:id_len], vpn_id)
+
# the relay message should be an encoded Solicit
msg = pkt[DHCP6OptRelayMsg]
sol = DHCP6_Solicit()
# Verify no response to DHCP request without DHCP config
#
p_disc_vrf0 = (Ether(dst="ff:ff:ff:ff:ff:ff",
- src=self.pg2.remote_mac) /
+ src=self.pg3.remote_mac) /
IP(src="0.0.0.0", dst="255.255.255.255") /
UDP(sport=DHCP4_CLIENT_PORT,
dport=DHCP4_SERVER_PORT) /
DHCP(options=[('message-type', 'discover'), ('end')]))
pkts_disc_vrf0 = [p_disc_vrf0]
p_disc_vrf1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
- src=self.pg3.remote_mac) /
+ src=self.pg4.remote_mac) /
IP(src="0.0.0.0", dst="255.255.255.255") /
UDP(sport=DHCP4_CLIENT_PORT,
dport=DHCP4_SERVER_PORT) /
BOOTP(op=1) /
DHCP(options=[('message-type', 'discover'), ('end')]))
- pkts_disc_vrf1 = [p_disc_vrf0]
+ pkts_disc_vrf1 = [p_disc_vrf1]
+ p_disc_vrf2 = (Ether(dst="ff:ff:ff:ff:ff:ff",
+ src=self.pg5.remote_mac) /
+ IP(src="0.0.0.0", dst="255.255.255.255") /
+ UDP(sport=DHCP4_CLIENT_PORT,
+ dport=DHCP4_SERVER_PORT) /
+ BOOTP(op=1) /
+ DHCP(options=[('message-type', 'discover'), ('end')]))
+ pkts_disc_vrf2 = [p_disc_vrf2]
- self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0,
+ self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf0,
+ "DHCP with no configuration")
+ self.send_and_assert_no_replies(self.pg4, pkts_disc_vrf1,
"DHCP with no configuration")
- self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1,
+ self.send_and_assert_no_replies(self.pg5, pkts_disc_vrf2,
"DHCP with no configuration")
#
# Discover packets from the client are dropped because there is no
# IP address configured on the client facing interface
#
- self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0,
+ self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf0,
"Discover DHCP no relay address")
#
DHCP(options=[('message-type', 'offer'), ('end')]))
pkts = [p]
- self.send_and_assert_no_replies(self.pg2, pkts,
+ self.send_and_assert_no_replies(self.pg3, pkts,
"Offer DHCP no relay address")
#
# configure an IP address on the client facing interface
#
- self.pg2.config_ip4()
+ self.pg3.config_ip4()
#
# Try again with a discover packet
# UDP source ports are unchanged
# we've no option 82 config so that should be absent
#
- self.pg2.add_stream(pkts_disc_vrf0)
+ self.pg3.add_stream(pkts_disc_vrf0)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = rx[0]
option_82 = self.verify_relayed_dhcp_discover(rx, self.pg0,
- src_intf=self.pg2)
+ src_intf=self.pg3)
#
# Create an DHCP offer reply from the server with a correctly formatted
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg2.get_capture(1)
+ rx = self.pg3.get_capture(1)
rx = rx[0]
- self.verify_dhcp_offer(rx, self.pg2)
+ self.verify_dhcp_offer(rx, self.pg3)
#
# Bogus Option 82:
#
# Send a DHCP request in VRF 1. should be dropped.
#
- self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1,
+ self.send_and_assert_no_replies(self.pg4, pkts_disc_vrf1,
"DHCP with no configuration VRF 1")
#
rx_table_id=0,
is_add=0)
- self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0,
+ self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf0,
"DHCP config removed VRF 0")
- self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1,
+ self.send_and_assert_no_replies(self.pg4, pkts_disc_vrf1,
"DHCP config removed VRF 1")
#
- # Add DHCP config for VRF 1
+ # Add DHCP config for VRF 1 & 2
#
- server_addr = self.pg1.remote_ip4n
- src_addr = self.pg1.local_ip4n
- self.vapi.dhcp_proxy_config(server_addr,
- src_addr,
+ server_addr1 = self.pg1.remote_ip4n
+ src_addr1 = self.pg1.local_ip4n
+ self.vapi.dhcp_proxy_config(server_addr1,
+ src_addr1,
rx_table_id=1,
server_table_id=1)
+ server_addr2 = self.pg2.remote_ip4n
+ src_addr2 = self.pg2.local_ip4n
+ self.vapi.dhcp_proxy_config(server_addr2,
+ src_addr2,
+ rx_table_id=2,
+ server_table_id=2)
#
- # Confim DHCP requests ok in VRF 1.
+ # Confim DHCP requests ok in VRF 1 & 2.
# - dropped on IP config on client interface
#
- self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1,
+ self.send_and_assert_no_replies(self.pg4, pkts_disc_vrf1,
"DHCP config removed VRF 1")
+ self.send_and_assert_no_replies(self.pg5, pkts_disc_vrf2,
+ "DHCP config removed VRF 2")
#
# configure an IP address on the client facing interface
#
- self.pg3.config_ip4()
-
- self.pg3.add_stream(pkts_disc_vrf1)
+ self.pg4.config_ip4()
+ self.pg4.add_stream(pkts_disc_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
-
rx = self.pg1.get_capture(1)
rx = rx[0]
- self.verify_relayed_dhcp_discover(rx, self.pg1, src_intf=self.pg3)
+ self.verify_relayed_dhcp_discover(rx, self.pg1, src_intf=self.pg4)
+
+ self.pg5.config_ip4()
+ self.pg5.add_stream(pkts_disc_vrf2)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg2.get_capture(1)
+ rx = rx[0]
+ self.verify_relayed_dhcp_discover(rx, self.pg2, src_intf=self.pg5)
#
# Add VSS config
- # table=1, fib=id=1, oui=4
- self.vapi.dhcp_proxy_set_vss(1, 1, 4)
+ # table=1, vss_type=1, vpn_index=1, oui=4
+ # table=2, vss_type=0, vpn_id = "ip4-table-2"
+ self.vapi.dhcp_proxy_set_vss(1, 1, vpn_index=1, oui=4, is_add=1)
+ self.vapi.dhcp_proxy_set_vss(2, 0, "ip4-table-2", is_add=1)
- self.pg3.add_stream(pkts_disc_vrf1)
+ self.pg4.add_stream(pkts_disc_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
rx = rx[0]
self.verify_relayed_dhcp_discover(rx, self.pg1,
- src_intf=self.pg3,
+ src_intf=self.pg4,
fib_id=1, oui=4)
+ self.pg5.add_stream(pkts_disc_vrf2)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(1)
+ rx = rx[0]
+ self.verify_relayed_dhcp_discover(rx, self.pg2,
+ src_intf=self.pg5,
+ vpn_id="ip4-table-2")
+
#
# Add a second DHCP server in VRF 1
# expect clients messages to be relay to both configured servers
#
self.pg1.generate_remote_hosts(2)
- server_addr2 = socket.inet_pton(AF_INET, self.pg1.remote_hosts[1].ip4)
+ server_addr12 = socket.inet_pton(AF_INET, self.pg1.remote_hosts[1].ip4)
- self.vapi.dhcp_proxy_config(server_addr2,
- src_addr,
+ self.vapi.dhcp_proxy_config(server_addr12,
+ src_addr1,
rx_table_id=1,
server_table_id=1,
is_add=1)
# The frist packet is sent to the second server
# We're not enforcing that here, it's just the way it is.
#
- self.pg3.add_stream(pkts_disc_vrf1)
+ self.pg4.add_stream(pkts_disc_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
option_82 = self.verify_relayed_dhcp_discover(
rx[0], self.pg1,
- src_intf=self.pg3,
+ src_intf=self.pg4,
dst_mac=self.pg1.remote_hosts[1].mac,
dst_ip=self.pg1.remote_hosts[1].ip4,
fib_id=1, oui=4)
self.verify_relayed_dhcp_discover(rx[1], self.pg1,
- src_intf=self.pg3,
+ src_intf=self.pg4,
fib_id=1, oui=4)
#
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg3.get_capture(2)
+ rx = self.pg4.get_capture(2)
- self.verify_dhcp_offer(rx[0], self.pg3, fib_id=1, oui=4)
- self.verify_dhcp_offer(rx[1], self.pg3, fib_id=1, oui=4)
+ self.verify_dhcp_offer(rx[0], self.pg4, fib_id=1, oui=4)
+ self.verify_dhcp_offer(rx[1], self.pg4, fib_id=1, oui=4)
#
# Ensure offers from non-servers are dropeed
# Ensure only the discover is sent to multiple servers
#
p_req_vrf1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
- src=self.pg3.remote_mac) /
+ src=self.pg4.remote_mac) /
IP(src="0.0.0.0", dst="255.255.255.255") /
UDP(sport=DHCP4_CLIENT_PORT,
dport=DHCP4_SERVER_PORT) /
DHCP(options=[('message-type', 'request'),
('end')]))
- self.pg3.add_stream(p_req_vrf1)
+ self.pg4.add_stream(p_req_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
#
# Remove the second DHCP server
#
- self.vapi.dhcp_proxy_config(server_addr2,
- src_addr,
+ self.vapi.dhcp_proxy_config(server_addr12,
+ src_addr1,
rx_table_id=1,
server_table_id=1,
is_add=0)
#
# Test we can still relay with the first
#
- self.pg3.add_stream(pkts_disc_vrf1)
+ self.pg4.add_stream(pkts_disc_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
rx = rx[0]
self.verify_relayed_dhcp_discover(rx, self.pg1,
- src_intf=self.pg3,
+ src_intf=self.pg4,
fib_id=1, oui=4)
#
# Remove the VSS config
# relayed DHCP has default vlaues in the option.
#
- self.vapi.dhcp_proxy_set_vss(1, 1, 4, is_add=0)
+ self.vapi.dhcp_proxy_set_vss(1, is_add=0)
+ self.vapi.dhcp_proxy_set_vss(2, is_add=0)
- self.pg3.add_stream(pkts_disc_vrf1)
+ self.pg4.add_stream(pkts_disc_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
rx = rx[0]
- self.verify_relayed_dhcp_discover(rx, self.pg1, src_intf=self.pg3)
+ self.verify_relayed_dhcp_discover(rx, self.pg1, src_intf=self.pg4)
#
# remove DHCP config to cleanup
#
- self.vapi.dhcp_proxy_config(server_addr,
- src_addr,
+ self.vapi.dhcp_proxy_config(server_addr1,
+ src_addr1,
rx_table_id=1,
server_table_id=1,
is_add=0)
+ self.vapi.dhcp_proxy_config(server_addr2,
+ src_addr2,
+ rx_table_id=2,
+ server_table_id=2,
+ is_add=0)
- self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0,
+ self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf0,
"DHCP cleanup VRF 0")
- self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1,
+ self.send_and_assert_no_replies(self.pg4, pkts_disc_vrf1,
"DHCP cleanup VRF 1")
- self.pg2.unconfig_ip4()
+ self.send_and_assert_no_replies(self.pg5, pkts_disc_vrf2,
+ "DHCP cleanup VRF 2")
+
self.pg3.unconfig_ip4()
+ self.pg4.unconfig_ip4()
+ self.pg5.unconfig_ip4()
def test_dhcp6_proxy(self):
""" DHCPv6 Proxy"""
# Verify no response to DHCP request without DHCP config
#
dhcp_solicit_dst = "ff02::1:2"
- dhcp_solicit_src_vrf0 = mk_ll_addr(self.pg2.remote_mac)
- dhcp_solicit_src_vrf1 = mk_ll_addr(self.pg3.remote_mac)
+ dhcp_solicit_src_vrf0 = mk_ll_addr(self.pg3.remote_mac)
+ dhcp_solicit_src_vrf1 = mk_ll_addr(self.pg4.remote_mac)
+ dhcp_solicit_src_vrf2 = mk_ll_addr(self.pg5.remote_mac)
server_addr_vrf0 = self.pg0.remote_ip6n
src_addr_vrf0 = self.pg0.local_ip6n
server_addr_vrf1 = self.pg1.remote_ip6n
src_addr_vrf1 = self.pg1.local_ip6n
+ server_addr_vrf2 = self.pg2.remote_ip6n
+ src_addr_vrf2 = self.pg2.local_ip6n
dmac = in6_getnsmac(inet_pton(socket.AF_INET6, dhcp_solicit_dst))
- p_solicit_vrf0 = (Ether(dst=dmac, src=self.pg2.remote_mac) /
+ p_solicit_vrf0 = (Ether(dst=dmac, src=self.pg3.remote_mac) /
IPv6(src=dhcp_solicit_src_vrf0,
dst=dhcp_solicit_dst) /
UDP(sport=DHCP6_SERVER_PORT,
dport=DHCP6_CLIENT_PORT) /
DHCP6_Solicit())
- p_solicit_vrf1 = (Ether(dst=dmac, src=self.pg3.remote_mac) /
+ p_solicit_vrf1 = (Ether(dst=dmac, src=self.pg4.remote_mac) /
IPv6(src=dhcp_solicit_src_vrf1,
dst=dhcp_solicit_dst) /
UDP(sport=DHCP6_SERVER_PORT,
dport=DHCP6_CLIENT_PORT) /
DHCP6_Solicit())
+ p_solicit_vrf2 = (Ether(dst=dmac, src=self.pg5.remote_mac) /
+ IPv6(src=dhcp_solicit_src_vrf2,
+ dst=dhcp_solicit_dst) /
+ UDP(sport=DHCP6_SERVER_PORT,
+ dport=DHCP6_CLIENT_PORT) /
+ DHCP6_Solicit())
- self.send_and_assert_no_replies(self.pg2, p_solicit_vrf0,
+ self.send_and_assert_no_replies(self.pg3, p_solicit_vrf0,
+ "DHCP with no configuration")
+ self.send_and_assert_no_replies(self.pg4, p_solicit_vrf1,
"DHCP with no configuration")
- self.send_and_assert_no_replies(self.pg3, p_solicit_vrf1,
+ self.send_and_assert_no_replies(self.pg5, p_solicit_vrf2,
"DHCP with no configuration")
#
server_table_id=0,
is_ipv6=1)
- self.send_and_assert_no_replies(self.pg2, p_solicit_vrf0,
+ self.send_and_assert_no_replies(self.pg3, p_solicit_vrf0,
"DHCP with no configuration")
- self.send_and_assert_no_replies(self.pg3, p_solicit_vrf1,
+ self.send_and_assert_no_replies(self.pg4, p_solicit_vrf1,
"DHCP with no configuration")
#
# configure an IP address on the client facing interface
#
- self.pg2.config_ip6()
+ self.pg3.config_ip6()
#
# Now the DHCP requests are relayed to the server
#
- self.pg2.add_stream(p_solicit_vrf0)
+ self.pg3.add_stream(p_solicit_vrf0)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.verify_dhcp6_solicit(rx[0], self.pg0,
dhcp_solicit_src_vrf0,
- self.pg2.remote_mac)
+ self.pg3.remote_mac)
#
# Exception cases for rejected relay responses
IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_Advertise())
- self.send_and_assert_no_replies(self.pg2, p_adv_vrf0,
+ self.send_and_assert_no_replies(self.pg3, p_adv_vrf0,
"DHCP6 not a relay reply")
# 2 - no relay message option
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply() /
DHCP6_Advertise())
- self.send_and_assert_no_replies(self.pg2, p_adv_vrf0,
+ self.send_and_assert_no_replies(self.pg3, p_adv_vrf0,
"DHCP not a relay message")
# 3 - no circuit ID
DHCP6_RelayReply() /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise())
- self.send_and_assert_no_replies(self.pg2, p_adv_vrf0,
+ self.send_and_assert_no_replies(self.pg3, p_adv_vrf0,
"DHCP6 no circuit ID")
# 4 - wrong circuit ID
p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x05') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise())
- self.send_and_assert_no_replies(self.pg2, p_adv_vrf0,
+ self.send_and_assert_no_replies(self.pg3, p_adv_vrf0,
"DHCP6 wrong circuit ID")
#
IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply() /
- DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x03') /
+ DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise(trid=1) /
DHCP6OptStatusCode(statuscode=0))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg2.get_capture(1)
+ rx = self.pg3.get_capture(1)
- self.verify_dhcp6_advert(rx[0], self.pg2, "::")
+ self.verify_dhcp6_advert(rx[0], self.pg3, "::")
#
# Send the relay response (the advertisement)
IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf0) /
- DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x03') /
+ DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise(trid=1) /
DHCP6OptStatusCode(statuscode=0))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg2.get_capture(1)
+ rx = self.pg3.get_capture(1)
- self.verify_dhcp6_advert(rx[0], self.pg2, dhcp_solicit_src_vrf0)
+ self.verify_dhcp6_advert(rx[0], self.pg3, dhcp_solicit_src_vrf0)
#
- # Add all the config for VRF 1
+ # Add all the config for VRF 1 & 2
#
self.vapi.dhcp_proxy_config(server_addr_vrf1,
src_addr_vrf1,
rx_table_id=1,
server_table_id=1,
is_ipv6=1)
- self.pg3.config_ip6()
+ self.pg4.config_ip6()
+
+ self.vapi.dhcp_proxy_config(server_addr_vrf2,
+ src_addr_vrf2,
+ rx_table_id=2,
+ server_table_id=2,
+ is_ipv6=1)
+ self.pg5.config_ip6()
#
# VRF 1 solicit
#
- self.pg3.add_stream(p_solicit_vrf1)
+ self.pg4.add_stream(p_solicit_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.verify_dhcp6_solicit(rx[0], self.pg1,
dhcp_solicit_src_vrf1,
- self.pg3.remote_mac)
+ self.pg4.remote_mac)
+
+ #
+ # VRF 2 solicit
+ #
+ self.pg5.add_stream(p_solicit_vrf2)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(1)
+
+ self.verify_dhcp6_solicit(rx[0], self.pg2,
+ dhcp_solicit_src_vrf2,
+ self.pg5.remote_mac)
#
# VRF 1 Advert
IPv6(dst=self.pg1.local_ip6, src=self.pg1.remote_ip6) /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf1) /
- DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') /
+ DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x05') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise(trid=1) /
DHCP6OptStatusCode(statuscode=0))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg3.get_capture(1)
+ rx = self.pg4.get_capture(1)
- self.verify_dhcp6_advert(rx[0], self.pg3, dhcp_solicit_src_vrf1)
+ self.verify_dhcp6_advert(rx[0], self.pg4, dhcp_solicit_src_vrf1)
#
# Add VSS config
- # table=1, fib=id=1, oui=4
- self.vapi.dhcp_proxy_set_vss(1, 1, 4, is_ip6=1)
+ # table=1, vss_type=1, vpn_index=1, oui=4
+ # table=2, vss_type=0, vpn_id = "ip6-table-2"
+ self.vapi.dhcp_proxy_set_vss(1, 1, oui=4, vpn_index=1, is_ip6=1)
+ self.vapi.dhcp_proxy_set_vss(2, 0, "IPv6-table-2", is_ip6=1)
- self.pg3.add_stream(p_solicit_vrf1)
+ self.pg4.add_stream(p_solicit_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.verify_dhcp6_solicit(rx[0], self.pg1,
dhcp_solicit_src_vrf1,
- self.pg3.remote_mac,
+ self.pg4.remote_mac,
fib_id=1,
oui=4)
+ self.pg5.add_stream(p_solicit_vrf2)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(1)
+
+ self.verify_dhcp6_solicit(rx[0], self.pg2,
+ dhcp_solicit_src_vrf2,
+ self.pg5.remote_mac,
+ vpn_id="IPv6-table-2")
+
#
# Remove the VSS config
# relayed DHCP has default vlaues in the option.
#
- self.vapi.dhcp_proxy_set_vss(1, 1, 4, is_ip6=1, is_add=0)
+ self.vapi.dhcp_proxy_set_vss(1, is_ip6=1, is_add=0)
- self.pg3.add_stream(p_solicit_vrf1)
+ self.pg4.add_stream(p_solicit_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.verify_dhcp6_solicit(rx[0], self.pg1,
dhcp_solicit_src_vrf1,
- self.pg3.remote_mac)
+ self.pg4.remote_mac)
#
# Add a second DHCP server in VRF 1
# expect clients messages to be relay to both configured servers
#
self.pg1.generate_remote_hosts(2)
- server_addr2 = socket.inet_pton(AF_INET6, self.pg1.remote_hosts[1].ip6)
+ server_addr12 = socket.inet_pton(AF_INET6,
+ self.pg1.remote_hosts[1].ip6)
- self.vapi.dhcp_proxy_config(server_addr2,
+ self.vapi.dhcp_proxy_config(server_addr12,
src_addr_vrf1,
rx_table_id=1,
server_table_id=1,
# The frist packet is sent to the second server
# We're not enforcing that here, it's just the way it is.
#
- self.pg3.add_stream(p_solicit_vrf1)
+ self.pg4.add_stream(p_solicit_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.verify_dhcp6_solicit(rx[0], self.pg1,
dhcp_solicit_src_vrf1,
- self.pg3.remote_mac)
+ self.pg4.remote_mac)
self.verify_dhcp6_solicit(rx[1], self.pg1,
dhcp_solicit_src_vrf1,
- self.pg3.remote_mac,
+ self.pg4.remote_mac,
dst_mac=self.pg1.remote_hosts[1].mac,
dst_ip=self.pg1.remote_hosts[1].ip6)
IPv6(dst=self.pg1.local_ip6, src=self.pg1.remote_ip6) /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf1) /
- DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') /
+ DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x05') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise(trid=1) /
DHCP6OptStatusCode(statuscode=0))
IPv6(dst=self.pg1.local_ip6, src=self.pg1._remote_hosts[1].ip6) /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf1) /
- DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') /
+ DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x05') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise(trid=1) /
DHCP6OptStatusCode(statuscode=0))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg3.get_capture(2)
+ rx = self.pg4.get_capture(2)
- self.verify_dhcp6_advert(rx[0], self.pg3, dhcp_solicit_src_vrf1)
- self.verify_dhcp6_advert(rx[1], self.pg3, dhcp_solicit_src_vrf1)
+ self.verify_dhcp6_advert(rx[0], self.pg4, dhcp_solicit_src_vrf1)
+ self.verify_dhcp6_advert(rx[1], self.pg4, dhcp_solicit_src_vrf1)
#
# Ensure only solicit messages are duplicated
#
- p_request_vrf1 = (Ether(dst=dmac, src=self.pg3.remote_mac) /
+ p_request_vrf1 = (Ether(dst=dmac, src=self.pg4.remote_mac) /
IPv6(src=dhcp_solicit_src_vrf1,
dst=dhcp_solicit_dst) /
UDP(sport=DHCP6_SERVER_PORT,
dport=DHCP6_CLIENT_PORT) /
DHCP6_Request())
- self.pg3.add_stream(p_request_vrf1)
+ self.pg4.add_stream(p_request_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
IPv6(dst=self.pg1.local_ip6, src="3001::1") /
UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) /
DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf1) /
- DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') /
+ DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x05') /
DHCP6OptRelayMsg(optlen=0) /
DHCP6_Advertise(trid=1) /
DHCP6OptStatusCode(statuscode=0))
#
# Remove the second DHCP server
#
- self.vapi.dhcp_proxy_config(server_addr2,
+ self.vapi.dhcp_proxy_config(server_addr12,
src_addr_vrf1,
rx_table_id=1,
server_table_id=1,
#
# Test we can still relay with the first
#
- self.pg3.add_stream(p_solicit_vrf1)
+ self.pg4.add_stream(p_solicit_vrf1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.verify_dhcp6_solicit(rx[0], self.pg1,
dhcp_solicit_src_vrf1,
- self.pg3.remote_mac)
+ self.pg4.remote_mac)
#
# Cleanup
#
+ self.vapi.dhcp_proxy_config(server_addr_vrf2,
+ src_addr_vrf2,
+ rx_table_id=2,
+ server_table_id=2,
+ is_ipv6=1,
+ is_add=0)
self.vapi.dhcp_proxy_config(server_addr_vrf1,
src_addr_vrf1,
rx_table_id=1,
server_table_id=0,
is_ipv6=1,
is_add=0)
- self.pg2.unconfig_ip6()
self.pg3.unconfig_ip6()
+ self.pg4.unconfig_ip6()
+ self.pg5.unconfig_ip6()
def test_dhcp_client(self):
""" DHCP Client"""
self.pg_enable_capture(self.pg_interfaces)
#
- # Configure DHCP client on PG2 and capture the discover sent
+ # Configure DHCP client on PG3 and capture the discover sent
#
- self.vapi.dhcp_client(self.pg2.sw_if_index, hostname)
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname)
- rx = self.pg2.get_capture(1)
+ rx = self.pg3.get_capture(1)
- self.verify_orig_dhcp_discover(rx[0], self.pg2, hostname)
+ self.verify_orig_dhcp_discover(rx[0], self.pg3, hostname)
#
- # Sned back on offer, expect the request
+ # Send back on offer, expect the request
#
- p_offer = (Ether(dst=self.pg2.local_mac, src=self.pg2.remote_mac) /
- IP(src=self.pg2.remote_ip4, dst="255.255.255.255") /
+ p_offer = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst="255.255.255.255") /
UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
- BOOTP(op=1, yiaddr=self.pg2.local_ip4) /
+ BOOTP(op=1,
+ yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
DHCP(options=[('message-type', 'offer'),
- ('server_id', self.pg2.remote_ip4),
- ('end')]))
+ ('server_id', self.pg3.remote_ip4),
+ 'end']))
- self.pg2.add_stream(p_offer)
+ self.pg3.add_stream(p_offer)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg2.get_capture(1)
- self.verify_orig_dhcp_request(rx[0], self.pg2, hostname,
- self.pg2.local_ip4)
+ rx = self.pg3.get_capture(1)
+ self.verify_orig_dhcp_request(rx[0], self.pg3, hostname,
+ self.pg3.local_ip4)
#
- # Send an acknowloedgement
+ # Send an acknowledgment
#
- p_ack = (Ether(dst=self.pg2.local_mac, src=self.pg2.remote_mac) /
- IP(src=self.pg2.remote_ip4, dst="255.255.255.255") /
+ p_ack = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst="255.255.255.255") /
UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
- BOOTP(op=1, yiaddr=self.pg2.local_ip4) /
+ BOOTP(op=1, yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
DHCP(options=[('message-type', 'ack'),
('subnet_mask', "255.255.255.0"),
- ('router', self.pg2.remote_ip4),
- ('server_id', self.pg2.remote_ip4),
+ ('router', self.pg3.remote_ip4),
+ ('server_id', self.pg3.remote_ip4),
('lease_time', 43200),
- ('end')]))
+ 'end']))
- self.pg2.add_stream(p_ack)
+ self.pg3.add_stream(p_ack)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
#
# We'll get an ARP request for the router address
#
- rx = self.pg2.get_capture(1)
+ rx = self.pg3.get_capture(1)
- self.assertEqual(rx[0][ARP].pdst, self.pg2.remote_ip4)
+ self.assertEqual(rx[0][ARP].pdst, self.pg3.remote_ip4)
self.pg_enable_capture(self.pg_interfaces)
#
# At the end of this procedure there should be a connected route
# in the FIB
#
- self.assertTrue(find_route(self, self.pg2.local_ip4, 24))
- self.assertTrue(find_route(self, self.pg2.local_ip4, 32))
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 24))
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 32))
# remove the left over ARP entry
- self.vapi.ip_neighbor_add_del(self.pg2.sw_if_index,
- mactobinary(self.pg2.remote_mac),
- self.pg2.remote_ip4,
+ self.vapi.ip_neighbor_add_del(self.pg3.sw_if_index,
+ mac_pton(self.pg3.remote_mac),
+ self.pg3.remote_ip4,
is_add=0)
#
# remove the DHCP config
#
- self.vapi.dhcp_client(self.pg2.sw_if_index, hostname, is_add=0)
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname, is_add=0)
#
# and now the route should be gone
#
- self.assertFalse(find_route(self, self.pg2.local_ip4, 32))
- self.assertFalse(find_route(self, self.pg2.local_ip4, 24))
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 32))
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 24))
#
# Start the procedure again. this time have VPP send the client-ID
#
- self.pg2.admin_down()
+ self.pg3.admin_down()
self.sleep(1)
- self.pg2.admin_up()
- self.vapi.dhcp_client(self.pg2.sw_if_index, hostname,
- client_id=self.pg2.local_mac)
+ self.pg3.admin_up()
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname,
+ client_id=self.pg3.local_mac)
- rx = self.pg2.get_capture(1)
+ rx = self.pg3.get_capture(1)
- self.verify_orig_dhcp_discover(rx[0], self.pg2, hostname,
- self.pg2.local_mac)
+ self.verify_orig_dhcp_discover(rx[0], self.pg3, hostname,
+ self.pg3.local_mac)
- self.pg2.add_stream(p_offer)
+ # TODO: VPP DHCP client should not accept DHCP OFFER message with
+ # the XID (Transaction ID) not matching the XID of the most recent
+ # DHCP DISCOVERY message.
+ # Such DHCP OFFER message must be silently discarded - RFC2131.
+ # Reported in Jira ticket: VPP-99
+ self.pg3.add_stream(p_offer)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg2.get_capture(1)
- self.verify_orig_dhcp_request(rx[0], self.pg2, hostname,
- self.pg2.local_ip4)
+ rx = self.pg3.get_capture(1)
+ self.verify_orig_dhcp_request(rx[0], self.pg3, hostname,
+ self.pg3.local_ip4)
#
# unicast the ack to the offered address
#
- p_ack = (Ether(dst=self.pg2.local_mac, src=self.pg2.remote_mac) /
- IP(src=self.pg2.remote_ip4, dst=self.pg2.local_ip4) /
+ p_ack = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
- BOOTP(op=1, yiaddr=self.pg2.local_ip4) /
+ BOOTP(op=1, yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
DHCP(options=[('message-type', 'ack'),
('subnet_mask', "255.255.255.0"),
- ('router', self.pg2.remote_ip4),
- ('server_id', self.pg2.remote_ip4),
+ ('router', self.pg3.remote_ip4),
+ ('server_id', self.pg3.remote_ip4),
('lease_time', 43200),
- ('end')]))
+ 'end']))
- self.pg2.add_stream(p_ack)
+ self.pg3.add_stream(p_ack)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
+ #
+ # We'll get an ARP request for the router address
+ #
+ rx = self.pg3.get_capture(1)
+
+ self.assertEqual(rx[0][ARP].pdst, self.pg3.remote_ip4)
+ self.pg_enable_capture(self.pg_interfaces)
+
#
# At the end of this procedure there should be a connected route
# in the FIB
#
- self.assertTrue(find_route(self, self.pg2.local_ip4, 32))
- self.assertTrue(find_route(self, self.pg2.local_ip4, 24))
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 32))
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 24))
+
+ #
+ # remove the DHCP config
+ #
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname, is_add=0)
+
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 32))
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 24))
+
+ #
+ # Rince and repeat, this time with VPP configured not to set
+ # the braodcast flag in the discover and request messages,
+ # and for the server to unicast the responses.
+ #
+ # Configure DHCP client on PG3 and capture the discover sent
+ #
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname,
+ set_broadcast_flag=0)
+
+ rx = self.pg3.get_capture(1)
+
+ self.verify_orig_dhcp_discover(rx[0], self.pg3, hostname,
+ broadcast=0)
+
+ #
+ # Send back on offer, unicasted to the offered address.
+ # Expect the request.
+ #
+ p_offer = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
+ BOOTP(op=1, yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
+ DHCP(options=[('message-type', 'offer'),
+ ('server_id', self.pg3.remote_ip4),
+ 'end']))
+
+ self.pg3.add_stream(p_offer)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg3.get_capture(1)
+ self.verify_orig_dhcp_request(rx[0], self.pg3, hostname,
+ self.pg3.local_ip4,
+ broadcast=0)
+
+ #
+ # Send an acknowledgment
+ #
+ p_ack = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
+ BOOTP(op=1, yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
+ DHCP(options=[('message-type', 'ack'),
+ ('subnet_mask', "255.255.255.0"),
+ ('router', self.pg3.remote_ip4),
+ ('server_id', self.pg3.remote_ip4),
+ ('lease_time', 43200),
+ 'end']))
+
+ self.pg3.add_stream(p_ack)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ #
+ # We'll get an ARP request for the router address
+ #
+ rx = self.pg3.get_capture(1)
+
+ self.assertEqual(rx[0][ARP].pdst, self.pg3.remote_ip4)
+ self.pg_enable_capture(self.pg_interfaces)
+
+ #
+ # At the end of this procedure there should be a connected route
+ # in the FIB
+ #
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 24))
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 32))
+
+ # remove the left over ARP entry
+ self.vapi.ip_neighbor_add_del(self.pg3.sw_if_index,
+ mac_pton(self.pg3.remote_mac),
+ self.pg3.remote_ip4,
+ is_add=0)
+
+ #
+ # read the DHCP client details from a dump
+ #
+ clients = self.vapi.dhcp_client_dump()
+
+ self.assertEqual(clients[0].client.sw_if_index,
+ self.pg3.sw_if_index)
+ self.assertEqual(clients[0].lease.sw_if_index,
+ self.pg3.sw_if_index)
+ self.assertEqual(clients[0].client.hostname.rstrip('\0'),
+ hostname)
+ self.assertEqual(clients[0].lease.hostname.rstrip('\0'),
+ hostname)
+ self.assertEqual(clients[0].lease.is_ipv6, 0)
+ # 0 = DISCOVER, 1 = REQUEST, 2 = BOUND
+ self.assertEqual(clients[0].lease.state, 2)
+ self.assertEqual(clients[0].lease.mask_width, 24)
+ self.assertEqual(clients[0].lease.router_address.rstrip('\0'),
+ self.pg3.remote_ip4n)
+ self.assertEqual(clients[0].lease.host_address.rstrip('\0'),
+ self.pg3.local_ip4n)
#
# remove the DHCP config
#
- self.vapi.dhcp_client(self.pg2.sw_if_index, hostname, is_add=0)
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname, is_add=0)
- self.assertFalse(find_route(self, self.pg2.local_ip4, 32))
- self.assertFalse(find_route(self, self.pg2.local_ip4, 24))
+ #
+ # and now the route should be gone
+ #
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 32))
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 24))
+
+ #
+ # Start the procedure again. Use requested lease time option.
+ #
+ self.pg3.admin_down()
+ self.sleep(1)
+ self.pg3.admin_up()
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname)
+
+ rx = self.pg3.get_capture(1)
+
+ self.verify_orig_dhcp_discover(rx[0], self.pg3, hostname)
+
+ #
+ # Send back on offer with requested lease time, expect the request
+ #
+ lease_time = 1
+ p_offer = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst='255.255.255.255') /
+ UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
+ BOOTP(op=1,
+ yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
+ DHCP(options=[('message-type', 'offer'),
+ ('server_id', self.pg3.remote_ip4),
+ ('lease_time', lease_time),
+ 'end']))
+
+ self.pg3.add_stream(p_offer)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg3.get_capture(1)
+ self.verify_orig_dhcp_request(rx[0], self.pg3, hostname,
+ self.pg3.local_ip4)
+
+ #
+ # Send an acknowledgment
+ #
+ p_ack = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst='255.255.255.255') /
+ UDP(sport=DHCP4_SERVER_PORT, dport=DHCP4_CLIENT_PORT) /
+ BOOTP(op=1, yiaddr=self.pg3.local_ip4,
+ chaddr=mac_pton(self.pg3.local_mac)) /
+ DHCP(options=[('message-type', 'ack'),
+ ('subnet_mask', '255.255.255.0'),
+ ('router', self.pg3.remote_ip4),
+ ('server_id', self.pg3.remote_ip4),
+ ('lease_time', lease_time),
+ 'end']))
+
+ self.pg3.add_stream(p_ack)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ #
+ # We'll get an ARP request for the router address
+ #
+ rx = self.pg3.get_capture(1)
+
+ self.assertEqual(rx[0][ARP].pdst, self.pg3.remote_ip4)
+
+ #
+ # At the end of this procedure there should be a connected route
+ # in the FIB
+ #
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 32))
+ self.assertTrue(find_route(self, self.pg3.local_ip4, 24))
+
+ # remove the left over ARP entry
+ self.vapi.ip_neighbor_add_del(self.pg3.sw_if_index,
+ mac_pton(self.pg3.remote_mac),
+ self.pg3.remote_ip4,
+ is_add=0)
+
+ #
+ # Sleep for the lease time
+ #
+ self.sleep(lease_time+1)
+
+ #
+ # And now the route should be gone
+ #
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 32))
+ self.assertFalse(find_route(self, self.pg3.local_ip4, 24))
+
+ #
+ # remove the DHCP config
+ #
+ self.vapi.dhcp_client(self.pg3.sw_if_index, hostname, is_add=0)
if __name__ == '__main__':