def test_relay_in_subnet(dhcp_version):
relay_addr_1 = "10.0.0.1" if dhcp_version == 'v4' else '10:0:0::1'
relay_addr_2 = "10.0.0.2" if dhcp_version == 'v4' else '10:0:0::2'
exp_addr_1 = '192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1'
exp_addr_2 = '192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2'
exp_addr_3 = '192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3'
cfg = setup_server_for_config_backend_cmds()
# create a subnet with specific IP address for relay agent
subnet_cfg, _ = cfg.add_subnet(relay={"ip-addresses": [relay_addr_1]})
# client 1 behind relay agent 1 should get a lease
get_address(mac_addr='00:00:00:00:00:01', relay_addr=relay_addr_1, exp_addr=exp_addr_1)
# client 2 behing unknown relay agent 2 should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', relay_addr=relay_addr_2)
# add another relay agent 2
subnet_cfg.update(relay={"ip-addresses": [relay_addr_1, relay_addr_2]})
# client 2 now should get a lease
get_address(mac_addr='00:00:00:00:00:02', relay_addr=relay_addr_2, exp_addr=exp_addr_2)
# another client 3 behind relay agent 1 still should be able to get a lease
get_address(mac_addr='00:00:00:00:00:03', relay_addr=relay_addr_1, exp_addr=exp_addr_3)
def test_interface_id_in_subnet():
cfg = setup_server_for_config_backend_cmds()
# relay_addr='7::1' always set to avoid matching thie relay agent
# to defined subnet
# create a subnet with specific relay agent interface-id
subnet_cfg, _ = cfg.add_subnet(interface_id='vlan-a')
# client 1 behind interface-id 'vlan-a' should get a lease
get_address(mac_addr='00:00:00:00:00:01',
interface_id='vlan-a',
relay_addr='7::1')
# client 2 behind interface-id 'vlan-b' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02',
interface_id='vlan-b',
relay_addr='7::1')
# change interface-id in subnet from 'vlan-a' to 'vlan-b'
subnet_cfg.update(interface_id='vlan-b')
# client 3 now should get a lease over interface-id 'vlan-b'
get_address(mac_addr='00:00:00:00:00:03',
interface_id='vlan-b',
relay_addr='7::1')
# but client 4 now behind interface-id 'vlan-a' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:04',
interface_id='vlan-a',
relay_addr='7::1')
def test_relay_in_subnet(dhcp_version):
relay_addr_1 = "10.0.0.1" if dhcp_version == 'v4' else '10:0:0::1'
relay_addr_2 = "10.0.0.2" if dhcp_version == 'v4' else '10:0:0::2'
exp_addr_1 = '192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1'
exp_addr_2 = '192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2'
exp_addr_3 = '192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3'
cfg = setup_server_for_config_backend_cmds()
# create a subnet with specific IP address for relay agent
subnet_cfg, _ = cfg.add_subnet(relay={"ip-addresses": [relay_addr_1]})
# client 1 behind relay agent 1 should get a lease
get_address(mac_addr='00:00:00:00:00:01',
relay_addr=relay_addr_1,
exp_addr=exp_addr_1)
# client 2 behing unknown relay agent 2 should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', relay_addr=relay_addr_2)
# add another relay agent 2
subnet_cfg.update(relay={"ip-addresses": [relay_addr_1, relay_addr_2]})
# client 2 now should get a lease
get_address(mac_addr='00:00:00:00:00:02',
relay_addr=relay_addr_2,
exp_addr=exp_addr_2)
# another client 3 behind relay agent 1 still should be able to get a lease
get_address(mac_addr='00:00:00:00:00:03',
relay_addr=relay_addr_1,
exp_addr=exp_addr_3)
def test_class_in_subnet(dhcp_version):
# prepare initial config with 1 class 'modem' for 1 client with specificed MAC address
init_cfg = {'client-classes': [{'name': 'modem'}]}
if dhcp_version == 'v4':
init_cfg['client-classes'][0]['test'] = "hexstring(pkt4.mac, ':') == '00:00:00:00:00:01'"
else:
init_cfg['client-classes'][0]['test'] = "hexstring(option[1].hex, ':') == '00:03:00:01:00:00:00:00:00:01'"
cfg = setup_server_for_config_backend_cmds(**init_cfg)
# add 1 subnet that permits only client from 'modem' class
subnet_cfg, _ = cfg.add_subnet(client_class='modem')
# client from 'modem' class with specific MAC address should get lease
get_address(mac_addr="00:00:00:00:00:01", exp_addr='192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1')
# client with another MAC address should be rejected
get_rejected(mac_addr='00:00:00:00:00:02')
# change class name in subnet and now the first client should not be given a lease
# as class names do not match
subnet_cfg.update(client_class='not-modem')
get_rejected(mac_addr='00:00:00:00:00:01')
# change class name in subnet to '' ie. reset it, ie. make the subnet open to any client
# and now unclassified should get a lease
subnet_cfg.update(client_class='')
get_address(mac_addr="00:00:00:00:00:03", exp_addr='192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2')
def test_server_tag_kea_without_tag():
# create first configuration, kea has no assigned tag, so it should get config just from "all"
cfg = setup_server_for_config_backend_cmds(server_tag="")
_set_server_tag("abc")
cfg.add_subnet(server_tags=["abc"], subnet="2001:db8:1::/64", id=1,
pools=[{'pool': "2001:db8:1::1-2001:db8:1::100"}])
get_rejected()
xyz = _get_server_config()
# check that we don't have anything configured except default value
assert len(xyz["arguments"]["Dhcp6"]["subnet6"]) == 0
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"]) == 0
assert xyz["arguments"]["Dhcp6"]["valid-lifetime"] == 7200
assert len(xyz["arguments"]["Dhcp6"]["option-data"]) == 0
# set network, subnet, option and parameter for "all"
cfg.add_network(server_tags=["all"], name="flor1")
cfg.add_subnet(server_tags=["all"], shared_network_name="flor1",
subnet="2001:db8:2::/64", id=2,
pools=[{'pool': "2001:db8:2::1-2001:db8:2::100"}])
cfg.set_global_parameter(server_tags=["all"], valid_lifetime=7700)
cfg.add_option(server_tags=["all"], code=22, csv_format=True, data="2001::1", name="sip-server-addr", space="dhcp6")
xyz = _get_server_config()
assert len(xyz["arguments"]["Dhcp6"]["subnet6"]) == 0
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"]) == 1
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"]) == 1
assert xyz["arguments"]["Dhcp6"]["valid-lifetime"] == 7700
assert len(xyz["arguments"]["Dhcp6"]["option-data"]) == 1
get_address(mac_addr='00:00:00:00:00:06', exp_ia_na_iaaddr_validlft=7700,
req_opts=[22], exp_option={"code": 22, "data": "2001::1"})
def test_class_in_network(dhcp_version):
# prepare initial config with 3 class: modem, user, other
# each class is assigned to 1 client with specificed MAC address
if dhcp_version == 'v4':
init_cfg = {'client-classes': [{
'name': 'modem',
'test': "hexstring(pkt4.mac, ':') == '00:00:00:00:00:01'"
}, {
'name': 'user',
'test': "hexstring(pkt4.mac, ':') == '00:00:00:00:00:02'"
}, {
'name': 'other',
'test': "hexstring(pkt4.mac, ':') == '00:00:00:00:00:03'"
}]}
else:
init_cfg = {'client-classes': [{
'name': 'modem',
'test': "hexstring(option[1].hex, ':') == '00:03:00:01:00:00:00:00:00:01'"
}, {
'name': 'user',
'test': "hexstring(option[1].hex, ':') == '00:03:00:01:00:00:00:00:00:02'"
}, {
'name': 'other',
'test': "hexstring(option[1].hex, ':') == '00:03:00:01:00:00:00:00:00:03'"
}]}
cfg = setup_server_for_config_backend_cmds(**init_cfg)
# add 2 subnets
# subnet 1 is for a modem class
cfg.add_subnet(client_class='modem')
# subnet 2 is assigned to shared netwrok which is assigned to user class
network_cfg, _ = cfg.add_network(name='user-nets',
client_class='user')
pool = '2.2.2.1-2.2.2.10' if dhcp_version == 'v4' else '2:2:2::1-2:2:2::10'
cfg.add_subnet(shared_network_name='user-nets',
subnet='2.2.2.0/24' if dhcp_version == 'v4' else '2:2:2::/64',
pools=[{'pool': pool}])
# client 1 from 'modem' class should get lease from subnet 1
get_address(mac_addr="00:00:00:00:00:01", exp_addr='192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1')
# client 2 from 'user' class should get lease from subnet 2
get_address(mac_addr="00:00:00:00:00:02", exp_addr='2.2.2.1' if dhcp_version == 'v4' else '2:2:2::1')
# client 3 from 'other' class should be rejected
get_rejected(mac_addr='00:00:00:00:00:03')
# change class name in network to 'other' and now client 3 should be given a lease
network_cfg.update(client_class='other')
get_address(mac_addr="00:00:00:00:00:03", exp_addr='2.2.2.2' if dhcp_version == 'v4' else '2:2:2::2')
# change class name in network to '' ie. reset it, ie. make the network open to any client
# and now unclassified client 4 should be given a lease from subnet 2
network_cfg.update(client_class='')
get_address(mac_addr="00:00:00:00:00:04", exp_addr='2.2.2.3' if dhcp_version == 'v4' else '2:2:2::3')
def test_server_tag_network():
cfg = setup_server_for_config_backend_cmds(server_tag="abc")
_set_server_tag("xyz")
_set_server_tag("abc")
cfg.add_network(server_tags=["abc"], name="flor1")
cfg.add_subnet(shared_network_name="flor1", server_tags=["abc"],
subnet="2001:db8:1::/64", id=1, pools=[{'pool': "2001:db8:1::1-2001:db8:1::1"}])
xyz = _get_server_config()
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"]) == 1
assert xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"][0]["subnet"] == "2001:db8:1::/64"
get_address(mac_addr='00:00:00:00:00:03', exp_addr='2001:db8:1::1')
cfg.add_network(server_tags=["xyz"], name="flor2")
cfg.add_subnet(shared_network_name="flor2", server_tags=["xyz"],
subnet="2001:db8:2::/64", id=2, pools=[{'pool': "2001:db8:2::5-2001:db8:2::5"}])
# we still want just one network with one subnet
xyz = _get_server_config()
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"]) == 1
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"]) == 1
assert xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"][0]["subnet"] == "2001:db8:1::/64"
get_rejected(mac_addr='00:00:00:00:00:10')
srv_control.start_srv('DHCP', 'stopped')
setup_server_for_config_backend_cmds(server_tag="xyz")
get_address(mac_addr='00:00:00:00:00:04', exp_addr='2001:db8:2::5')
# we still want just one network with one subnet but different subnet, from xyz
xyz = _get_server_config()
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"]) == 1
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"]) == 1
assert xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"][0]["subnet"] == "2001:db8:2::/64"
cfg.add_subnet(shared_network_name="flor2", server_tags=["all"],
subnet="2001:db8:3::/64", id=3, pools=[{'pool': "2001:db8:3::5-2001:db8:3::5"}])
# model was incomplete on previous step so I can't use del_subnet method because it's again
# forcing checking
cmd = dict(command="remote-subnet6-del-by-prefix",
arguments={"remote": {"type": "mysql"},
"subnets": [{"subnet": "2001:db8:2::/64"}]})
srv_msg.send_ctrl_cmd(cmd, exp_result=0)
xyz = _get_server_config(reload_kea=True)
assert len(xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"]) == 1
assert xyz["arguments"]["Dhcp6"]["shared-networks"][0]["subnet6"][0]["subnet"] == "2001:db8:3::/64"
# this time we expect address from "all"
get_address(mac_addr='00:00:00:00:00:05', exp_addr='2001:db8:3::5')
def test_subnet_and_valid_lifetime(dhcp_version):
# change valid-lifetime on different levels (global and subnet)
# and check if behavior is as expected ie leases after lifetime
# are available for other clients
cfg = setup_server_for_config_backend_cmds()
# define one, default subnet with 1 IP address
cfg.add_subnet(pool="192.168.50.2/32" if dhcp_version == 'v4' else '2001:db8:1::2/128')
# check getting address from this subnet by client 1
get_address(mac_addr='00:00:00:00:00:01', exp_addr='192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2')
# after 2 seconds check if another client 2 can get address - as default lifetime is big
# it should fail because there is no more IP addresses (there is only 1 taken)
time.sleep(2)
get_rejected(mac_addr='00:00:00:00:00:02')
# change lease lifetime on global level to be small ie. 1sec
# and 1) extend address pool by 1 IP for new client 3 as previous IP address is taken for long time
# and 2) check getting address by this new client 3
cfg.set_global_parameter(valid_lifetime=1)
cfg.update_subnet(pool="192.168.50.2/31" if dhcp_version == 'v4' else '2001:db8:1::2/127')
get_address(mac_addr='00:00:00:00:00:03', exp_lease_time=1,
exp_addr='192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3')
# as lease time is 1 sec after 2secs this just taken IP address should
# be available for other clients ie. client 4
time.sleep(2)
get_address(mac_addr='00:00:00:00:00:04',
exp_addr='192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3')
# wait for lease expiration for next test steps
time.sleep(2)
# change lease lifetime on subnet level to be big ie. 1000sec
# and check getting address by client 5
cfg.update_subnet(valid_lifetime=1000)
get_address(mac_addr='00:00:00:00:00:05', exp_lease_time=1000,
exp_addr='192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3')
# after 2 seconds check if another client 6 can get address - as new lifetime is big
# it should fail because there is no more IP addresses (there is only 2 taken)
time.sleep(2)
get_rejected(mac_addr='00:00:00:00:00:06')
# change lease lifetime on subnet level to be small ie. 1sec
# and check getting address by client 7 but first extent pool by one address
# as previous IP addresses are taken for long time
cfg.update_subnet(valid_lifetime=1,
pool="192.168.50.2-192.168.50.4" if dhcp_version == 'v4' else '2001:db8:1::2-2001:db8:1::4')
get_address(mac_addr='00:00:00:00:00:07', exp_lease_time=1,
exp_addr='192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4')
# as lease time is 1 sec after 2secs this just taken IP address should
# be available for other clients ie. client 8
time.sleep(2)
get_address(mac_addr='00:00:00:00:00:08', exp_addr='192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4')
def test_server_tag_kea_without_tag():
# create first configuration, kea has no assigned tag, so it should get config just from "all"
cfg = setup_server_for_config_backend_cmds(server_tag="")
_set_server_tag("abc")
cfg.add_subnet(server_tags=["abc"],
subnet="192.168.52.0/24",
id=1,
pools=[{
'pool': "192.168.52.1-192.168.52.100"
}])
get_rejected()
xyz = _get_server_config()
# check that we don't have anything configured except default value
assert len(xyz["arguments"]["Dhcp4"]["subnet4"]) == 0
assert len(xyz["arguments"]["Dhcp4"]["shared-networks"]) == 0
assert xyz["arguments"]["Dhcp4"]["boot-file-name"] == ""
assert len(xyz["arguments"]["Dhcp4"]["option-data"]) == 0
# set network, subnet, option and parameter for "all"
cfg.add_network(server_tags=["all"], name="flor1")
cfg.add_subnet(server_tags=["all"],
shared_network_name="flor1",
subnet="192.168.50.0/24",
id=2,
pools=[{
'pool': "192.168.50.1-192.168.50.100"
}])
cfg.set_global_parameter(server_tags=["all"], valid_lifetime=7700)
cfg.set_global_parameter(server_tags=["all"],
boot_file_name="/dev/null_all")
cfg.add_option(server_tags=["all"],
code=3,
csv_format=True,
data="10.0.0.1",
name="routers",
space="dhcp4")
xyz = _get_server_config()
assert len(xyz["arguments"]["Dhcp4"]["subnet4"]) == 0
assert len(xyz["arguments"]["Dhcp4"]["shared-networks"]) == 1
assert len(xyz["arguments"]["Dhcp4"]["shared-networks"][0]["subnet4"]) == 1
assert xyz["arguments"]["Dhcp4"]["boot-file-name"] == "/dev/null_all"
assert len(xyz["arguments"]["Dhcp4"]["option-data"]) == 1
get_address(mac_addr='00:00:00:00:00:06',
exp_boot_file_name="/dev/null_all",
req_opts=[3],
exp_option={
"code": 3,
"data": "10.0.0.1"
})
def test_relay_in_network(dhcp_version):
relay_addr_1 = "10.0.0.1" if dhcp_version == 'v4' else '10:0:0::1'
relay_addr_2 = "10.0.0.2" if dhcp_version == 'v4' else '10:0:0::2'
relay_addr_3 = "10.0.0.3" if dhcp_version == 'v4' else '10:0:0::3'
exp_addr_1 = '192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1'
exp_addr_2 = '192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2'
exp_addr_3 = '192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3'
exp_addr_4 = '192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4'
cfg = setup_server_for_config_backend_cmds()
# create a network with specific IP address for relay agent
network_cfg, _ = cfg.add_network(relay={"ip-addresses": [relay_addr_1]})
subnet_cfg, _ = cfg.add_subnet(network=network_cfg)
# client 1 behind relay agent 1 should get a lease
get_address(mac_addr='00:00:00:00:00:01',
relay_addr=relay_addr_1,
exp_addr=exp_addr_1)
# client 2 behing unknown relay agent 2 should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', relay_addr=relay_addr_2)
# add another relay agent 2
network_cfg.update(relay={"ip-addresses": [relay_addr_1, relay_addr_2]})
# client 2 now should get a lease
get_address(mac_addr='00:00:00:00:00:02',
relay_addr=relay_addr_2,
exp_addr=exp_addr_2)
# another client 3 behind relay agent 1 still should be able to get a lease
get_address(mac_addr='00:00:00:00:00:03',
relay_addr=relay_addr_1,
exp_addr=exp_addr_3)
# and now override relay on subnet level to relay agent 3
subnet_cfg.update(relay={"ip-addresses": [relay_addr_3]})
# client 4 now should get a lease
get_address(mac_addr='00:00:00:00:00:04',
relay_addr=relay_addr_3,
exp_addr=exp_addr_4)
# another client 5 behind relay agent 1 now should NOT be able to get any lease
get_rejected(mac_addr='00:00:00:00:00:03', relay_addr=relay_addr_1)
def test_interface_id_in_subnet():
cfg = setup_server_for_config_backend_cmds()
# create a subnet with specific relay agent interface-id
subnet_cfg, _ = cfg.add_subnet(interface_id='vlan-a')
# client 1 behind interface-id 'vlan-a' should get a lease
get_address(mac_addr='00:00:00:00:00:01', interface_id='vlan-a')
# client 2 behind interface-id 'vlan-b' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', interface_id='vlan-b')
# change interface-id in subnet from 'vlan-a' to 'vlan-b'
subnet_cfg.update(interface_id='vlan-b')
# client 3 now should get a lease over interface-id 'vlan-b'
get_address(mac_addr='00:00:00:00:00:03', interface_id='vlan-b')
# but client 4 now behind interface-id 'vlan-a' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:04', interface_id='vlan-a')
def test_interface_id_in_network():
cfg = setup_server_for_config_backend_cmds()
# relay_addr='7::1' always set to avoid matching thie relay agent
# to defined subnet
# create a network with specific relay agent interface-id
network_cfg, _ = cfg.add_network(interface_id='vlan-a')
subnet_cfg, _ = cfg.add_subnet(network=network_cfg, interface='')
# client 1 behind interface-id 'vlan-a' should get a lease
get_address(mac_addr='00:00:00:00:00:01', interface_id='vlan-a', relay_addr='7::1')
# client 2 behind interface-id 'vlan-b' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', interface_id='vlan-b', relay_addr='7::1')
# change interface-id in network from 'vlan-a' to 'vlan-b'
network_cfg.update(interface_id='vlan-b')
# client 3 now should get a lease over interface-id 'vlan-b'
get_address(mac_addr='00:00:00:00:00:03', interface_id='vlan-b', relay_addr='7::1')
# but client 4 now behind interface-id 'vlan-a' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:04', interface_id='vlan-a', relay_addr='7::1')
# set interface-id in subnet from 'vlan-c' ie. override the one in network
subnet_cfg.update(interface_id='vlan-c')
# client 5 now should get a lease over interface-id 'vlan-c'
get_address(mac_addr='00:00:00:00:00:05', interface_id='vlan-b', relay_addr='7::1')
# but client 6 now behind interface-id 'vlan-b' (that is set in network)
# should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:06', interface_id='vlan-b', relay_addr='7::1')
def test_interface_id_in_network():
cfg = setup_server_for_config_backend_cmds()
# create a network with specific relay agent interface-id
network_cfg, _ = cfg.add_network(interface_id='vlan-a')
subnet_cfg, _ = cfg.add_subnet(network=network_cfg)
# client 1 behind interface-id 'vlan-a' should get a lease
get_address(mac_addr='00:00:00:00:00:01', interface_id='vlan-a')
# client 2 behind interface-id 'vlan-b' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', interface_id='vlan-b')
# change interface-id in network from 'vlan-a' to 'vlan-b'
network_cfg.update(interface_id='vlan-b')
# client 3 now should get a lease over interface-id 'vlan-b'
get_address(mac_addr='00:00:00:00:00:03', interface_id='vlan-b')
# but client 4 now behind interface-id 'vlan-a' should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:04', interface_id='vlan-a')
# set interface-id in subnet from 'vlan-c' ie. override the one in network
subnet_cfg.update(interface_id='vlan-c')
# client 5 now should get a lease over interface-id 'vlan-c'
get_address(mac_addr='00:00:00:00:00:05', interface_id='vlan-b')
# but client 6 now behind interface-id 'vlan-b' (that is set in network)
# should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:06', interface_id='vlan-b')
def test_auto_reload_100seconds(dhcp_version):
# prepare initial config with fetch wait time set to 100 seconds
cfg = setup_server_for_config_backend_cmds(config_control={"config-fetch-wait-time": 100}, force_reload=False)
dhcp_key = 'Dhcp%s' % dhcp_version[1]
subnet_key = 'subnet%s' % dhcp_version[1]
# check config that there is no subnets and fetch time is 100
new_cfg = get_config()
assert len(new_cfg[dhcp_key][subnet_key]) == 0
assert new_cfg[dhcp_key]['config-control']['config-fetch-wait-time'] == 100
# add subnet and wait 2 seconds that config is NOT reloaded automatically as it is done every 100 seconds
cfg.add_subnet()
time.sleep(2)
# now check if there is NO subnets in config
new_cfg = get_config()
assert len(new_cfg[dhcp_key][subnet_key]) == 0
# there is NO subnet so getting address should fail
get_rejected()
def test_relay_in_network(dhcp_version):
relay_addr_1 = "10.0.0.1" if dhcp_version == 'v4' else '10:0:0::1'
relay_addr_2 = "10.0.0.2" if dhcp_version == 'v4' else '10:0:0::2'
relay_addr_3 = "10.0.0.3" if dhcp_version == 'v4' else '10:0:0::3'
exp_addr_1 = '192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1'
exp_addr_2 = '192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2'
exp_addr_3 = '192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3'
exp_addr_4 = '192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4'
cfg = setup_server_for_config_backend_cmds()
# create a network with specific IP address for relay agent
network_cfg, _ = cfg.add_network(relay={"ip-addresses": [relay_addr_1]})
subnet_cfg, _ = cfg.add_subnet(network=network_cfg)
# client 1 behind relay agent 1 should get a lease
get_address(mac_addr='00:00:00:00:00:01', relay_addr=relay_addr_1, exp_addr=exp_addr_1)
# client 2 behing unknown relay agent 2 should NOT get any lease
get_rejected(mac_addr='00:00:00:00:00:02', relay_addr=relay_addr_2)
# add another relay agent 2
network_cfg.update(relay={"ip-addresses": [relay_addr_1, relay_addr_2]})
# client 2 now should get a lease
get_address(mac_addr='00:00:00:00:00:02', relay_addr=relay_addr_2, exp_addr=exp_addr_2)
# another client 3 behind relay agent 1 still should be able to get a lease
get_address(mac_addr='00:00:00:00:00:03', relay_addr=relay_addr_1, exp_addr=exp_addr_3)
# and now override relay on subnet level to relay agent 3
subnet_cfg.update(relay={"ip-addresses": [relay_addr_3]})
# client 4 now should get a lease
get_address(mac_addr='00:00:00:00:00:04', relay_addr=relay_addr_3, exp_addr=exp_addr_4)
# another client 5 behind relay agent 1 now should NOT be able to get any lease
get_rejected(mac_addr='00:00:00:00:00:03', relay_addr=relay_addr_1)
def test_auto_reload_100seconds(dhcp_version):
# prepare initial config with fetch wait time set to 100 seconds
cfg = setup_server_for_config_backend_cmds(
config_control={"config-fetch-wait-time": 100}, force_reload=False)
dhcp_key = 'Dhcp%s' % dhcp_version[1]
subnet_key = 'subnet%s' % dhcp_version[1]
# check config that there is no subnets and fetch time is 100
new_cfg = get_config()
assert len(new_cfg[dhcp_key][subnet_key]) == 0
assert new_cfg[dhcp_key]['config-control']['config-fetch-wait-time'] == 100
# add subnet and wait 2 seconds that config is NOT reloaded automatically as it is done every 100 seconds
cfg.add_subnet()
time.sleep(2)
# now check if there is NO subnets in config
new_cfg = get_config()
assert len(new_cfg[dhcp_key][subnet_key]) == 0
# there is NO subnet so getting address should fail
get_rejected()
def test_decline_and_probation_period(initial_decline_probation_period, dhcp_version):
# Set initial value of decline-probation-period in config file and then change it
# using cb-cmds. Observe if the setting is honored in case of sending DECLINE messages.
# Different initial settings for decline-probation-period: default (=24h), 1 second and 1000 seconds.
cfg = setup_server_for_config_backend_cmds(decline_probation_period=initial_decline_probation_period)
# Prepare subnet with only 1 IP address in a pool. This way when the second DISCOVER is send
# no response should be expected from server.
cfg.add_subnet(pool='192.168.50.1/32' if dhcp_version == 'v4' else '2001:db8:1::1/128')
# Get address and decline it.
if dhcp_version == 'v4':
addr = get_address4(exp_yiaddr='192.168.50.1')
send_decline4(addr)
else:
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::1')
send_decline6()
# Wait a moment.
time.sleep(2)
# If initial decline-probation-period was 1 second then it should
# be possible to acquire the same IP again, ie. after 1 second it should have been
# returned to pool from probation space.
if initial_decline_probation_period == 1:
get_address(exp_addr='192.168.50.1' if dhcp_version == 'v4' else '2001:db8:1::1')
else:
# If initial value was other than 1 second then server should still keep
# the IP in probation and no response should be sent by server.
get_rejected()
# Delete subnet. This will delete IP in probation. Ie. start from scratch.
cfg.del_subnet()
# Change decline-probation-period from initial to 1000 seconds.
cfg.set_global_parameter(decline_probation_period=1000)
# Create new subnet with different pool but still with 1 IP address.
cfg.add_subnet(pool='192.168.50.2/32' if dhcp_version == 'v4' else '2001:db8:1::2/128')
# Now after decline and sleeping 2 seconds the declined address still should
# be in probation and server should not send any response for discover.
if dhcp_version == 'v4':
addr = get_address4(exp_yiaddr='192.168.50.2')
send_decline4(addr)
else:
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::2')
send_decline6()
time.sleep(2)
get_rejected()
# Start from scratch again. New pool with 1 IP address.
# Probation period is changed now to 1 second.
cfg.del_subnet()
cfg.set_global_parameter(decline_probation_period=1)
cfg.add_subnet(pool='192.168.50.3/32' if dhcp_version == 'v4' else '2001:db8:1::3/128')
# This time after decline and sleeping the address should be available
# for the following request.
if dhcp_version == 'v4':
addr1 = get_address4(exp_yiaddr='192.168.50.3')
send_decline4(addr1)
time.sleep(2)
addr2 = get_address4()
assert addr2 == addr1
else:
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::3')
send_decline6()
time.sleep(2)
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::3')
def test_shared_networks_and_valid_lifetime(dhcp_version):
# change valid-lifetime on different levels (global, shared network and subnet)
# and check if behavior is as expected ie leases after lifetime
# are not available for rebinding
cfg = setup_server_for_config_backend_cmds()
# define a shared network with one subnet
network_cfg, _ = cfg.add_network()
subnet_cfg, _ = cfg.add_subnet(network=network_cfg,
pool="192.168.50.2/32" if dhcp_version
== 'v4' else '2001:db8:1::2/128')
# check getting address from this subnet by client 1
get_address(
mac_addr='00:00:00:00:00:01',
exp_addr='192.168.50.2' if dhcp_version == 'v4' else '2001:db8:1::2')
# after 2 seconds check if another client 2 can get address - as default lifetime is big
# it should fail because there is no more IP addresses (there is only 1 that is taken)
time.sleep(2)
get_rejected(mac_addr='00:00:00:00:00:02')
# change lease lifetime on global level to be small ie. 1sec
# and 1) extend address pool by 1 IP for new client 3 as previous IP address is taken for long time
# and 2) check getting address by this new client 3
cfg.set_global_parameter(valid_lifetime=1)
subnet_cfg.update(pool="192.168.50.2/31" if dhcp_version ==
'v4' else '2001:db8:1::2/127')
get_address(
mac_addr='00:00:00:00:00:03',
exp_lease_time=1,
exp_addr='192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3')
# as lease time is 1 sec after 2secs this just taken IP address should
# be available for other clients ie. client 4
time.sleep(2)
get_address(
mac_addr='00:00:00:00:00:04',
exp_addr='192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3')
# wait for lease expiration for next test steps
time.sleep(2)
# change lease lifetime on network level to be big ie. 1000sec
# and check getting address by client 5
network_cfg.update(valid_lifetime=1000)
get_address(
mac_addr='00:00:00:00:00:05',
exp_lease_time=1000,
exp_addr='192.168.50.3' if dhcp_version == 'v4' else '2001:db8:1::3')
# after 2 seconds check if another client 6 can get address - as new lifetime is big
# it should fail because there is no more IP addresses (there are only 2 that are taken)
time.sleep(2)
get_rejected(mac_addr='00:00:00:00:00:06')
# change lease lifetime on network level to be small ie. 1sec
# and check getting address by client 7 but first extent pool by one address
# as previous IP addresses are taken for long time
network_cfg.update(valid_lifetime=1)
subnet_cfg.update(pool="192.168.50.2-192.168.50.4" if dhcp_version ==
'v4' else '2001:db8:1::2-2001:db8:1::4')
get_address(
mac_addr='00:00:00:00:00:07',
exp_lease_time=1,
exp_addr='192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4')
# as lease time is 1 sec after 2secs this just taken IP address should
# be available for other clients ie. client 8
time.sleep(2)
get_address(
mac_addr='00:00:00:00:00:08',
exp_addr='192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4')
# wait for lease expiration for next test steps
time.sleep(2)
# change lease lifetime on subnet level to be big ie. 1000sec
# and check getting address by client 9
subnet_cfg.update(valid_lifetime=1000)
get_address(
mac_addr='00:00:00:00:00:09',
exp_lease_time=1000,
exp_addr='192.168.50.4' if dhcp_version == 'v4' else '2001:db8:1::4')
# after 2 seconds check if another client 10 can get address - as new lifetime is big
# it should fail because there is no more IP addresses (there are only 4 that are taken)
time.sleep(2)
get_rejected(mac_addr='00:00:00:00:00:10')
# change lease lifetime on subnet level to be small ie. 1sec
# and check getting address by client 11 but first extent pool by one address
# as previous IP addresses are taken for long time
subnet_cfg.update(valid_lifetime=1,
pool="192.168.50.2-192.168.50.5" if dhcp_version == 'v4'
else '2001:db8:1::2-2001:db8:1::5')
get_address(
mac_addr='00:00:00:00:00:11',
exp_lease_time=1,
exp_addr='192.168.50.5' if dhcp_version == 'v4' else '2001:db8:1::5')
# as lease time is 1 sec after 2secs this just taken IP address should
# be available for other clients ie. client 12
time.sleep(2)
get_address(
mac_addr='00:00:00:00:00:12',
exp_addr='192.168.50.5' if dhcp_version == 'v4' else '2001:db8:1::5')
def test_decline_and_probation_period(initial_decline_probation_period,
dhcp_version):
# Set initial value of decline-probation-period in config file and then change it
# using cb-cmds. Observe if the setting is honored in case of sending DECLINE messages.
# Different initial settings for decline-probation-period: default (=24h), 1 second and 1000 seconds.
cfg = setup_server_for_config_backend_cmds(
decline_probation_period=initial_decline_probation_period)
# Prepare subnet with only 1 IP address in a pool. This way when the second DISCOVER is send
# no response should be expected from server.
cfg.add_subnet(pool='192.168.50.1/32' if dhcp_version ==
'v4' else '2001:db8:1::1/128')
# Get address and decline it.
if dhcp_version == 'v4':
addr = get_address4(exp_yiaddr='192.168.50.1')
send_decline4(addr)
else:
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::1')
send_decline6()
# Wait a moment.
time.sleep(2)
# If initial decline-probation-period was 1 second then it should
# be possible to acquire the same IP again, ie. after 1 second it should have been
# returned to pool from probation space.
if initial_decline_probation_period == 1:
get_address(exp_addr='192.168.50.1' if dhcp_version ==
'v4' else '2001:db8:1::1')
else:
# If initial value was other than 1 second then server should still keep
# the IP in probation and no response should be sent by server.
get_rejected()
# Delete subnet. This will delete IP in probation. Ie. start from scratch.
cfg.del_subnet()
# Change decline-probation-period from initial to 1000 seconds.
cfg.set_global_parameter(decline_probation_period=1000)
# Create new subnet with different pool but still with 1 IP address.
cfg.add_subnet(pool='192.168.50.2/32' if dhcp_version ==
'v4' else '2001:db8:1::2/128')
# Now after decline and sleeping 2 seconds the declined address still should
# be in probation and server should not send any response for discover.
if dhcp_version == 'v4':
addr = get_address4(exp_yiaddr='192.168.50.2')
send_decline4(addr)
else:
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::2')
send_decline6()
time.sleep(2)
get_rejected()
# Start from scratch again. New pool with 1 IP address.
# Probation period is changed now to 1 second.
cfg.del_subnet()
cfg.set_global_parameter(decline_probation_period=1)
cfg.add_subnet(pool='192.168.50.3/32' if dhcp_version ==
'v4' else '2001:db8:1::3/128')
# This time after decline and sleeping the address should be available
# for the following request.
if dhcp_version == 'v4':
addr1 = get_address4(exp_yiaddr='192.168.50.3')
send_decline4(addr1)
time.sleep(2)
addr2 = get_address4()
assert addr2 == addr1
else:
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::3')
send_decline6()
time.sleep(2)
get_address6(exp_ia_na_iaaddr_addr='2001:db8:1::3')
def test_server_tag_subnet():
# create first configuration
cfg_xyz = setup_server_for_config_backend_cmds(server_tag="xyz")
_set_server_tag("xyz")
_set_server_tag("abc")
get_rejected()
# add configuration for abc, don't check reconfigure result
cfg_xyz.add_subnet(server_tags=["abc"],
subnet="2001:db8:1::/64",
id=1,
pools=[{
'pool': "2001:db8:1::1/128"
}])
get_rejected()
# unassigned is not supported yet
# cfg_xyz.add_subnet(server_tags=["unassigned"], subnet="2001:db8:1::/64", id=3,
# pools=[{'pool': "2001:db8:1::10-2001:db8:1::10"}])
#
# get_rejected()
# add configuration for xyz
cfg_xyz.add_subnet(server_tags=["xyz"],
subnet="2001:db8:2::/64",
id=2,
pools=[{
'pool': "2001:db8:2::50/128"
}])
get_address(mac_addr='00:00:00:00:00:01', exp_addr='2001:db8:2::50')
xyz = _get_server_config()
# check if it's configured with just one subnet
assert len(xyz["arguments"]["Dhcp6"]["subnet6"]) == 1
# and this subnet is as expected
assert xyz["arguments"]["Dhcp6"]["subnet6"][0]["id"] == 2
assert xyz["arguments"]["Dhcp6"]["subnet6"][0][
"subnet"] == "2001:db8:2::/64"
srv_control.start_srv('DHCP', 'stopped')
# create second configuration
setup_server_for_config_backend_cmds(server_tag="abc")
get_address(mac_addr='00:00:00:00:00:02', exp_addr='2001:db8:1::1')
abc = _get_server_config()
# check if it's configured with just one subnet
assert len(abc["arguments"]["Dhcp6"]["subnet6"]) == 1
# and this subnet is as expected
assert abc["arguments"]["Dhcp6"]["subnet6"][0]["id"] == 1
assert abc["arguments"]["Dhcp6"]["subnet6"][0][
"subnet"] == "2001:db8:1::/64"
srv_control.start_srv('DHCP', 'stopped')
# create third subnet that will use "all" tag
cfg_qwe = setup_server_for_config_backend_cmds(server_tag="qwe")
get_rejected()
cfg_qwe.add_subnet(server_tags=["all"],
subnet="2001:db8:3::/64",
id=3,
pools=[{
'pool': "2001:db8:3::20-2001:db8:3::21"
}])
abc = _get_server_config()
# check if it's configured with just one subnet
assert len(abc["arguments"]["Dhcp6"]["subnet6"]) == 1
# and this subnet is as expected
assert abc["arguments"]["Dhcp6"]["subnet6"][0]["id"] == 3
assert abc["arguments"]["Dhcp6"]["subnet6"][0][
"subnet"] == "2001:db8:3::/64"
get_address(mac_addr='00:00:00:00:00:03', exp_addr='2001:db8:3::20')
srv_control.start_srv('DHCP', 'stopped')
setup_server_for_config_backend_cmds(server_tag="abc")
abc = _get_server_config()
# two subnets without classification on the same interface doesn't make sense so we will just check config
# check if it's configured with just two subnets, all and abc configured at the beginning of a test
assert len(abc["arguments"]["Dhcp6"]["subnet6"]) == 2
# and this subnet is as expected
assert abc["arguments"]["Dhcp6"]["subnet6"][0]["id"] == 1
assert abc["arguments"]["Dhcp6"]["subnet6"][1]["id"] == 3
assert abc["arguments"]["Dhcp6"]["subnet6"][0][
"subnet"] == "2001:db8:1::/64"
assert abc["arguments"]["Dhcp6"]["subnet6"][1][
"subnet"] == "2001:db8:3::/64"
