def run(test, params, env):
"""
Test command: virsh net-dhcp-leases
1. Create a new network and run virsh command to check dhcp leases info.
2. Attach an interface before or after start the domain, then check the
dhcp leases info.
3. Clean the environment.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
net_name = params.get("net_name", "default")
net_option = params.get("net_option", "")
status_error = "yes" == params.get("status_error", "no")
prepare_net = "yes" == params.get("prepare_net", "yes")
hotplug_iface = "yes" == params.get("hotplug_interface", "no")
filter_by_mac = "yes" == params.get("filter_by_mac", "no")
invalid_mac = "yes" == params.get("invalid_mac", "no")
expect_msg = params.get("leases_err_msg")
# upstream expect msg may change on new libvirt
new_expect_msg = params.get("new_leases_err_msg")
range_lease = eval(params.get("range_lease", "None"))
host_lease = eval(params.get("host_lease", "None"))
host = eval(params.get("host", "None"))
invalid_lease = "yes" == params.get("invalid_lease", "no")
blank_lease = "yes" == params.get("blank_lease", "no")
if (host_lease
or range_lease) and not libvirt_version.version_compare(6, 2, 0):
test.cancel(
"Don't support: libvirt support lease setting since 6.2.0!")
# Generate a random string as the MAC address
nic_mac = None
if invalid_mac:
nic_mac = utils_misc.generate_random_string(17)
# Command won't fail on old libvirt
if not libvirt_version.version_compare(1, 3, 1) and invalid_mac:
logging.debug("Reset case to positive as BZ#1261432")
status_error = False
def create_network():
"""
Create a network
"""
net_ip_addr = params.get("net_ip_addr", "192.168.200.1")
net_ip_netmask = params.get("net_ip_netmask", "255.255.255.0")
net_dhcp_start = params.get("net_dhcp_start", "192.168.200.2")
net_dhcp_end = params.get("net_dhcp_end", "192.168.200.254")
netxml = network_xml.NetworkXML()
netxml.name = net_name
netxml.forward = {'mode': "nat"}
range = network_xml.RangeXML()
range.attrs = {'start': net_dhcp_start, "end": net_dhcp_end}
ipxml = network_xml.IPXML()
if range_lease:
range.lease_attrs = range_lease
ipxml.address = net_ip_addr
ipxml.netmask = net_ip_netmask
ipxml.dhcp_ranges = range
if host:
new_host = network_xml.DhcpHostXML()
new_host.attrs = host
new_host.lease_attrs = host_lease
ipxml.hosts = [new_host]
netxml.set_ip(ipxml)
netxml.create()
def get_net_dhcp_leases(output):
"""
Return the dhcp lease info in a list
"""
leases = []
lines = output.splitlines()
if not lines:
return leases
try:
pat = r"\S+\ ?\S+\ ?\S+\ ?\S+|\S+"
keys = re.findall(pat, lines[0])
for line in lines[2:]:
values = re.findall(pat, line)
leases.append(dict(list(zip(keys, values))))
return leases
except Exception:
test.error("Fail to parse output: %s" % output)
def check_lease_time(ex_time, duration):
"""
Compare the expiry time from the virsh cmd output and the setting
:param ex_time: text, the expiry time get from the net-dhcp-lease output
:param duration: dict, the configured expiry time
"""
now_time = datetime.now()
# convert the lease time from str to the datetime structure
# lease is in format like: 2021-01-18 02:15:35
get_ex_time = datetime.strptime(ex_time, '%Y-%m-%d %H:%M:%S')
if duration['expiry'] == '0':
if get_ex_time > now_time:
test.fail("The expiry time is not correct!!")
if 'unit' not in duration:
duration['unit'] = 'minutes'
else:
if duration['unit'] == 'seconds':
dur_sec = int(duration['expiry'])
elif duration['unit'] == 'hours':
dur_sec = int(duration['expiry']) * 3600
else:
dur_sec = int(duration['expiry']) * 60
delta = get_ex_time - now_time
logging.debug(
"The get_ex_time is %s, the now_time is %s, "
"duration is %s", get_ex_time, now_time, duration)
if delta > timedelta(seconds=dur_sec):
test.fail("Get expiry time %s longer than the setting %s!!" %
(delta, timedelta(seconds=dur_sec)))
elif delta < timedelta(seconds=(dur_sec - 30)):
test.fail("Get expiry time %s shorter than the setting %s" %
(delta, timedelta(seconds=dur_sec)))
else:
logging.info("Get expected lease info.")
return None
def get_ip_by_mac(mac_addr, try_dhclint=False, timeout=120):
"""
Get interface IP address by given MAC addrss. If try_dhclint is
True, then try to allocate IP addrss for the interface.
"""
session = vm.wait_for_login(login_nic_index,
timeout=timeout,
serial=True)
def f():
return utils_net.get_guest_ip_addr(session, mac_addr)
try:
ip_addr = utils_misc.wait_for(f, 10)
if ip_addr is None:
iface_name = utils_net.get_linux_ifname(session, mac_addr)
if try_dhclint:
session.cmd("dhclient %s" % iface_name)
ip_addr = utils_misc.wait_for(f, 10)
else:
# No IP for the interface, just print the interface name
logging.warn(
"Find '%s' with MAC address '%s', "
"but which has no IP address", iface_name, mac_addr)
finally:
session.close()
return ip_addr
def check_net_lease(net_leases, expected_find=True):
"""
Check the dhcp lease info.
"""
if not net_leases:
if expected_find:
test.fail("Lease info is empty")
else:
logging.debug("No dhcp lease info find as expected")
else:
if not expected_find:
test.fail("Find unexpected dhcp lease info: %s" % net_leases)
find_mac = False
for net_lease in net_leases:
net_mac = net_lease['MAC address']
net_ip = net_lease['IP address'][:-3]
expiry_time = net_lease['Expiry Time']
if vm_xml.VMXML.get_iface_by_mac(vm_name, net_mac):
find_mac = True
logging.debug("Find '%s' in domain XML", net_mac)
else:
logging.debug("Not find '%s' in domain XML", net_mac)
continue
iface_ip = get_ip_by_mac(net_mac)
if iface_ip and iface_ip != net_ip:
test.fail("Address '%s' is not expected" % iface_ip)
#check if lease time is correct
if libvirt_version.version_compare(6, 2, 0):
if host_lease and net_mac == host['mac']:
check_lease_time(expiry_time, host_lease)
elif range_lease:
check_lease_time(expiry_time, range_lease)
if expected_find and not find_mac:
test.fail("No matched MAC address")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if vm.is_alive():
vm.destroy(gracefully=False)
login_nic_index = 0
new_nic_index = 0
# Cleanup dirty dnsmaq, firstly get all network,and destroy all networks except
# default
net_state = virsh.net_state_dict(only_names=True)
logging.debug(
"current networks: %s, destroy and undefine networks "
"except default!", net_state)
for net in net_state:
if net != "default":
virsh.net_destroy(net)
virsh.net_undefine(net)
cmd = "ps aux|grep dnsmasq|grep -v grep | grep -v default | awk '{print $2}'"
pid_list = process.run(cmd, shell=True).stdout_text.strip().splitlines()
logging.debug(pid_list)
for pid in pid_list:
utils_misc.safe_kill(pid, signal.SIGKILL)
try:
# Create new network
if prepare_net:
nets_old = virsh.net_state_dict()
if net_name in list(nets_old.keys()):
virsh.net_destroy(net_name)
virsh.net_undefine(net_name)
create_network()
nets = virsh.net_state_dict()
if net_name not in list(nets.keys()) and not status_error:
test.error("Not find network '%s'" % net_name)
expected_find = False
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
options=net_option,
debug=True,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
if not status_error:
if host:
iface_mac = host['mac']
else:
iface_mac = utils_net.generate_mac_address_simple()
if filter_by_mac:
nic_mac = iface_mac
op = "--type network --model virtio --source %s --mac %s" \
% (net_name, iface_mac)
nic_params = {
'mac': iface_mac,
'nettype': 'bridge',
'ip_version': 'ipv4'
}
login_timeout = 120
if not hotplug_iface:
op += " --config"
virsh.attach_interface(vm_name,
option=op,
debug=True,
ignore_status=False)
vm.add_nic(**nic_params)
vm.start()
new_nic_index = vm.get_nic_index_by_mac(iface_mac)
if new_nic_index > 0:
login_nic_index = new_nic_index
else:
vm.start()
# wait for VM start before hotplug interface
vm.wait_for_serial_login()
virsh.attach_interface(vm_name,
option=op,
debug=True,
ignore_status=False)
vm.add_nic(**nic_params)
# As VM already started, so the login timeout could be shortened
login_timeout = 10
new_interface_ip = get_ip_by_mac(iface_mac,
try_dhclint=True,
timeout=login_timeout)
if new_interface_ip:
expected_find = True
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
debug=False,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
else:
if expect_msg:
utlv.check_result(result, expect_msg.split(';'))
except LibvirtXMLError as e:
if status_error and invalid_lease:
if blank_lease and libvirt_version.version_compare(7, 1, 0):
expect_msg = new_expect_msg
if expect_msg not in e.details:
test.fail("Network create fail unexpected: %s" % e.details)
else:
logging.debug("Network create fail expected: %s", e.details)
finally:
# Delete the new attached interface
if new_nic_index > 0:
vm.del_nic(new_nic_index)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
if prepare_net:
virsh.net_destroy(net_name)
def run(test, params, env):
"""
Test command: virsh net-dhcp-leases
1. Create a new network and run virsh command to check dhcp leases info.
2. Attach an interface before or after start the domain, then check the
dhcp leases info.
3. Clean the environment.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
net_name = params.get("net_name", "default")
nic_mac = params.get("nic_mac", "")
net_option = params.get("net_option", "")
status_error = "yes" == params.get("status_error", "no")
prepare_net = "yes" == params.get("prepare_net", "yes")
hotplug_iface = "yes" == params.get("hotplug_interface", "no")
filter_by_mac = "yes" == params.get("filter_by_mac", "no")
exist_bug = params.get("exist_bug")
def create_network():
"""
Create a network
"""
net_ip_addr = params.get("net_ip_addr", "192.168.200.1")
net_ip_netmask = params.get("net_ip_netmask", "255.255.255.0")
net_dhcp_start = params.get("net_dhcp_start", "192.168.200.2")
net_dhcp_end = params.get("net_dhcp_end", "192.168.200.254")
netxml = network_xml.NetworkXML()
netxml.name = net_name
netxml.forward = {'mode': "nat"}
ipxml = network_xml.IPXML()
ipxml.address = net_ip_addr
ipxml.netmask = net_ip_netmask
ipxml.dhcp_ranges = {'start': net_dhcp_start, "end": net_dhcp_end}
netxml.set_ip(ipxml)
netxml.create()
def get_net_dhcp_leases(output):
"""
Return the dhcp lease info in a list
"""
leases = []
lines = output.splitlines()
if not lines:
return leases
try:
pat = r"\S+\ ?\S+\ ?\S+\ ?\S+|\S+"
keys = re.findall(pat, lines[0])
for line in lines[2:]:
values = re.findall(pat, line)
leases.append(dict(zip(keys, values)))
return leases
except:
raise error.TestError("Fail to parse output: %s" % output)
def get_ip_by_mac(mac_addr, try_dhclint=False):
"""
Get interface IP address by given MAC addrss. If try_dhclint is
True, then try to allocate IP addrss for the interface.
"""
session = vm.wait_for_login()
def f():
return utils_net.get_guest_ip_addr(session, mac_addr)
try:
ip_addr = utils_misc.wait_for(f, 10)
if ip_addr is None:
iface_name = utils_net.get_linux_ifname(session, mac_addr)
if try_dhclint:
session.cmd("dhclient %s" % iface_name)
ip_addr = utils_misc.wait_for(f, 10)
else:
# No IP for the interface, just print the interface name
logging.warn("Find '%s' with MAC address '%s', "
"but which has no IP address", iface_name,
mac_addr)
finally:
session.close()
return ip_addr
def check_net_lease(net_leases, expected_find=True):
"""
Check the dhcp lease info.
"""
if not net_leases:
if expected_find:
raise error.TestFail("Lease info is empty")
else:
logging.debug("No dhcp lease info find as expected")
else:
if not expected_find:
raise error.TestFail("Find unexpected dhcp lease info: %s"
% net_leases)
find_mac = False
for net_lease in net_leases:
net_mac = net_lease['MAC address']
net_ip = net_lease['IP address'][:-3]
if vm_xml.VMXML.get_iface_by_mac(vm_name, net_mac):
find_mac = True
logging.debug("Find '%s' in domain XML", net_mac)
else:
logging.debug("Not find '%s' in domain XML", net_mac)
continue
iface_ip = get_ip_by_mac(net_mac)
if iface_ip and iface_ip != net_ip:
raise error.TestFail("Address '%s' is not expected" % iface_ip)
if expected_find and not find_mac:
raise error.TestFail("No matched MAC address")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
# Remove all interfaces of the VM
if vm.is_alive():
vm.destroy(gracefully=False)
vm.free_mac_address(0)
vmxml.remove_all_device_by_type("interface")
# Create new network
if prepare_net:
create_network()
nets = virsh.net_state_dict()
if net_name not in nets.keys() and not status_error:
raise error.TestError("Not find network '%s'" % net_name)
expected_find = False
try:
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
options=net_option,
debug=True,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
if not status_error:
iface_mac = utils_net.generate_mac_address_simple()
if filter_by_mac:
nic_mac = iface_mac
op = "--type network --source %s --mac %s" % (net_name, iface_mac)
if not hotplug_iface:
op += " --config"
virsh.attach_interface(vm_name, option=op, debug=True,
ignore_status=False)
vm.start()
else:
vm.start()
virsh.attach_interface(vm_name, option=op, debug=True,
ignore_status=False)
new_interface_ip = get_ip_by_mac(iface_mac, try_dhclint=True)
# Allocate IP address for the new interface may fail, so only
# check the result if get new IP address
if new_interface_ip:
expected_find = True
result = virsh.net_dhcp_leases(net_name, mac=nic_mac,
debug=False, ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
finally:
if exist_bug:
logging.warn("Case may failed as bug: %s", BUG_URL % exist_bug)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
if prepare_net:
virsh.net_destroy(net_name)
def run(test, params, env):
"""
Test command: virsh net-dhcp-leases
1. Create a new network and run virsh command to check dhcp leases info.
2. Attach an interface before or after start the domain, then check the
dhcp leases info.
3. Clean the environment.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
net_name = params.get("net_name", "default")
net_option = params.get("net_option", "")
status_error = "yes" == params.get("status_error", "no")
prepare_net = "yes" == params.get("prepare_net", "yes")
hotplug_iface = "yes" == params.get("hotplug_interface", "no")
filter_by_mac = "yes" == params.get("filter_by_mac", "no")
invalid_mac = "yes" == params.get("invalid_mac", "no")
expect_msg = params.get("leases_err_msg")
# Generate a random string as the MAC address
nic_mac = None
if invalid_mac:
nic_mac = utils_misc.generate_random_string(17)
# Command won't fail on old libvirt
if not libvirt_version.version_compare(1, 3, 1) and invalid_mac:
logging.debug("Reset case to positive as BZ#1261432")
status_error = False
def create_network():
"""
Create a network
"""
net_ip_addr = params.get("net_ip_addr", "192.168.200.1")
net_ip_netmask = params.get("net_ip_netmask", "255.255.255.0")
net_dhcp_start = params.get("net_dhcp_start", "192.168.200.2")
net_dhcp_end = params.get("net_dhcp_end", "192.168.200.254")
netxml = network_xml.NetworkXML()
netxml.name = net_name
netxml.forward = {'mode': "nat"}
ipxml = network_xml.IPXML()
ipxml.address = net_ip_addr
ipxml.netmask = net_ip_netmask
ipxml.dhcp_ranges = {'start': net_dhcp_start, "end": net_dhcp_end}
netxml.set_ip(ipxml)
netxml.create()
def get_net_dhcp_leases(output):
"""
Return the dhcp lease info in a list
"""
leases = []
lines = output.splitlines()
if not lines:
return leases
try:
pat = r"\S+\ ?\S+\ ?\S+\ ?\S+|\S+"
keys = re.findall(pat, lines[0])
for line in lines[2:]:
values = re.findall(pat, line)
leases.append(dict(list(zip(keys, values))))
return leases
except Exception:
test.error("Fail to parse output: %s" % output)
def get_ip_by_mac(mac_addr, try_dhclint=False, timeout=120):
"""
Get interface IP address by given MAC addrss. If try_dhclint is
True, then try to allocate IP addrss for the interface.
"""
session = vm.wait_for_login(login_nic_index,
timeout=timeout,
serial=True)
def f():
return utils_net.get_guest_ip_addr(session, mac_addr)
try:
ip_addr = utils_misc.wait_for(f, 10)
if ip_addr is None:
iface_name = utils_net.get_linux_ifname(session, mac_addr)
if try_dhclint:
session.cmd("dhclient %s" % iface_name)
ip_addr = utils_misc.wait_for(f, 10)
else:
# No IP for the interface, just print the interface name
logging.warn(
"Find '%s' with MAC address '%s', "
"but which has no IP address", iface_name, mac_addr)
finally:
session.close()
return ip_addr
def check_net_lease(net_leases, expected_find=True):
"""
Check the dhcp lease info.
"""
if not net_leases:
if expected_find:
test.fail("Lease info is empty")
else:
logging.debug("No dhcp lease info find as expected")
else:
if not expected_find:
test.fail("Find unexpected dhcp lease info: %s" % net_leases)
find_mac = False
for net_lease in net_leases:
net_mac = net_lease['MAC address']
net_ip = net_lease['IP address'][:-3]
if vm_xml.VMXML.get_iface_by_mac(vm_name, net_mac):
find_mac = True
logging.debug("Find '%s' in domain XML", net_mac)
else:
logging.debug("Not find '%s' in domain XML", net_mac)
continue
iface_ip = get_ip_by_mac(net_mac)
if iface_ip and iface_ip != net_ip:
test.fail("Address '%s' is not expected" % iface_ip)
if expected_find and not find_mac:
test.fail("No matched MAC address")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if vm.is_alive():
vm.destroy(gracefully=False)
login_nic_index = 0
new_nic_index = 0
# Cleanup dirty dnsmaq, firstly get all network,and destroy all networks except
# default
net_state = virsh.net_state_dict(only_names=True)
logging.debug(
"current networks: %s, destroy and undefine networks "
"except default!", net_state)
for net in net_state:
if net != "default":
virsh.net_destroy(net)
virsh.net_undefine(net)
cmd = "ps aux|grep dnsmasq|grep -v grep | grep -v default | awk '{print $2}'"
pid_list = process.run(cmd, shell=True).stdout_text.strip().splitlines()
logging.debug(pid_list)
for pid in pid_list:
utils_misc.safe_kill(pid, signal.SIGKILL)
# Create new network
if prepare_net:
create_network()
nets = virsh.net_state_dict()
if net_name not in list(nets.keys()) and not status_error:
test.error("Not find network '%s'" % net_name)
expected_find = False
try:
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
options=net_option,
debug=True,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
if not status_error:
iface_mac = utils_net.generate_mac_address_simple()
if filter_by_mac:
nic_mac = iface_mac
op = "--type network --model virtio --source %s --mac %s" \
% (net_name, iface_mac)
nic_params = {
'mac': iface_mac,
'nettype': 'bridge',
'ip_version': 'ipv4'
}
login_timeout = 120
if not hotplug_iface:
op += " --config"
virsh.attach_interface(vm_name,
option=op,
debug=True,
ignore_status=False)
vm.add_nic(**nic_params)
vm.start()
new_nic_index = vm.get_nic_index_by_mac(iface_mac)
if new_nic_index > 0:
login_nic_index = new_nic_index
else:
vm.start()
# wait for VM start before hotplug interface
vm.wait_for_serial_login()
virsh.attach_interface(vm_name,
option=op,
debug=True,
ignore_status=False)
vm.add_nic(**nic_params)
# As VM already started, so the login timeout could be shortened
login_timeout = 10
new_interface_ip = get_ip_by_mac(iface_mac,
try_dhclint=True,
timeout=login_timeout)
# Allocate IP address for the new interface may fail, so only
# check the result if get new IP address
if new_interface_ip:
expected_find = True
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
debug=False,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
else:
if expect_msg:
utlv.check_result(result, expect_msg.split(';'))
finally:
# Delete the new attached interface
if new_nic_index > 0:
vm.del_nic(new_nic_index)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
if prepare_net:
virsh.net_destroy(net_name)
def run(test, params, env):
"""
Test command: virsh net-dhcp-leases
1. Create a new network and run virsh command to check dhcp leases info.
2. Attach an interface before or after start the domain, then check the
dhcp leases info.
3. Clean the environment.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
net_name = params.get("net_name", "default")
nic_mac = params.get("nic_mac", "")
net_option = params.get("net_option", "")
status_error = "yes" == params.get("status_error", "no")
prepare_net = "yes" == params.get("prepare_net", "yes")
hotplug_iface = "yes" == params.get("hotplug_interface", "no")
filter_by_mac = "yes" == params.get("filter_by_mac", "no")
exist_bug = params.get("exist_bug")
def create_network():
"""
Create a network
"""
net_ip_addr = params.get("net_ip_addr", "192.168.200.1")
net_ip_netmask = params.get("net_ip_netmask", "255.255.255.0")
net_dhcp_start = params.get("net_dhcp_start", "192.168.200.2")
net_dhcp_end = params.get("net_dhcp_end", "192.168.200.254")
netxml = network_xml.NetworkXML()
netxml.name = net_name
netxml.forward = {'mode': "nat"}
ipxml = network_xml.IPXML()
ipxml.address = net_ip_addr
ipxml.netmask = net_ip_netmask
ipxml.dhcp_ranges = {'start': net_dhcp_start, "end": net_dhcp_end}
netxml.set_ip(ipxml)
netxml.create()
def get_net_dhcp_leases(output):
"""
Return the dhcp lease info in a list
"""
leases = []
lines = output.splitlines()
if not lines:
return leases
try:
pat = r"\S+\ ?\S+\ ?\S+\ ?\S+|\S+"
keys = re.findall(pat, lines[0])
for line in lines[2:]:
values = re.findall(pat, line)
leases.append(dict(zip(keys, values)))
return leases
except:
raise error.TestError("Fail to parse output: %s" % output)
def get_ip_by_mac(mac_addr, try_dhclint=False):
"""
Get interface IP address by given MAC addrss. If try_dhclint is
True, then try to allocate IP addrss for the interface.
"""
session = vm.wait_for_login()
def f():
return utils_net.get_guest_ip_addr(session, mac_addr)
try:
ip_addr = utils_misc.wait_for(f, 10)
if ip_addr is None:
iface_name = utils_net.get_linux_ifname(session, mac_addr)
if try_dhclint:
session.cmd("dhclient %s" % iface_name)
ip_addr = utils_misc.wait_for(f, 10)
else:
# No IP for the interface, just print the interface name
logging.warn(
"Find '%s' with MAC address '%s', "
"but which has no IP address", iface_name, mac_addr)
finally:
session.close()
return ip_addr
def check_net_lease(net_leases, expected_find=True):
"""
Check the dhcp lease info.
"""
if not net_leases:
if expected_find:
raise error.TestFail("Lease info is empty")
else:
logging.debug("No dhcp lease info find as expected")
else:
if not expected_find:
raise error.TestFail("Find unexpected dhcp lease info: %s" %
net_leases)
find_mac = False
for net_lease in net_leases:
net_mac = net_lease['MAC address']
net_ip = net_lease['IP address'][:-3]
if vm_xml.VMXML.get_iface_by_mac(vm_name, net_mac):
find_mac = True
logging.debug("Find '%s' in domain XML", net_mac)
else:
logging.debug("Not find '%s' in domain XML", net_mac)
continue
iface_ip = get_ip_by_mac(net_mac)
if iface_ip and iface_ip != net_ip:
raise error.TestFail("Address '%s' is not expected" % iface_ip)
if expected_find and not find_mac:
raise error.TestFail("No matched MAC address")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
# Remove all interfaces of the VM
if vm.is_alive():
vm.destroy(gracefully=False)
vm.free_mac_address(0)
vmxml.remove_all_device_by_type("interface")
# Create new network
if prepare_net:
create_network()
nets = virsh.net_state_dict()
if net_name not in nets.keys() and not status_error:
raise error.TestError("Not find network '%s'" % net_name)
expected_find = False
try:
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
options=net_option,
debug=True,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
if not status_error:
iface_mac = utils_net.generate_mac_address_simple()
if filter_by_mac:
nic_mac = iface_mac
op = "--type network --source %s --mac %s" % (net_name, iface_mac)
if not hotplug_iface:
op += " --config"
virsh.attach_interface(vm_name,
option=op,
debug=True,
ignore_status=False)
vm.start()
else:
vm.start()
virsh.attach_interface(vm_name,
option=op,
debug=True,
ignore_status=False)
new_interface_ip = get_ip_by_mac(iface_mac, try_dhclint=True)
# Allocate IP address for the new interface may fail, so only
# check the result if get new IP address
if new_interface_ip:
expected_find = True
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
debug=False,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
finally:
if exist_bug:
logging.warn("Case may failed as bug: %s", BUG_URL % exist_bug)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
if prepare_net:
virsh.net_destroy(net_name)
def run(test, params, env):
"""
Test command: virsh net-dhcp-leases
1. Create a new network and run virsh command to check dhcp leases info.
2. Attach an interface before or after start the domain, then check the
dhcp leases info.
3. Clean the environment.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
net_name = params.get("net_name", "default")
net_option = params.get("net_option", "")
status_error = "yes" == params.get("status_error", "no")
prepare_net = "yes" == params.get("prepare_net", "yes")
hotplug_iface = "yes" == params.get("hotplug_interface", "no")
filter_by_mac = "yes" == params.get("filter_by_mac", "no")
invalid_mac = "yes" == params.get("invalid_mac", "no")
expect_msg = params.get("leases_err_msg")
# Generate a random string as the MAC address
nic_mac = None
if invalid_mac:
nic_mac = utils_misc.generate_random_string(17)
# Command won't fail on old libvirt
if not libvirt_version.version_compare(1, 3, 1) and invalid_mac:
logging.debug("Reset case to positive as BZ#1261432")
status_error = False
def create_network():
"""
Create a network
"""
net_ip_addr = params.get("net_ip_addr", "192.168.200.1")
net_ip_netmask = params.get("net_ip_netmask", "255.255.255.0")
net_dhcp_start = params.get("net_dhcp_start", "192.168.200.2")
net_dhcp_end = params.get("net_dhcp_end", "192.168.200.254")
netxml = network_xml.NetworkXML()
netxml.name = net_name
netxml.forward = {'mode': "nat"}
ipxml = network_xml.IPXML()
ipxml.address = net_ip_addr
ipxml.netmask = net_ip_netmask
ipxml.dhcp_ranges = {'start': net_dhcp_start, "end": net_dhcp_end}
netxml.set_ip(ipxml)
netxml.create()
def get_net_dhcp_leases(output):
"""
Return the dhcp lease info in a list
"""
leases = []
lines = output.splitlines()
if not lines:
return leases
try:
pat = r"\S+\ ?\S+\ ?\S+\ ?\S+|\S+"
keys = re.findall(pat, lines[0])
for line in lines[2:]:
values = re.findall(pat, line)
leases.append(dict(list(zip(keys, values))))
return leases
except Exception:
test.error("Fail to parse output: %s" % output)
def get_ip_by_mac(mac_addr, try_dhclint=False, timeout=120):
"""
Get interface IP address by given MAC addrss. If try_dhclint is
True, then try to allocate IP addrss for the interface.
"""
session = vm.wait_for_login(login_nic_index, timeout=timeout, serial=True)
def f():
return utils_net.get_guest_ip_addr(session, mac_addr)
try:
ip_addr = utils_misc.wait_for(f, 10)
if ip_addr is None:
iface_name = utils_net.get_linux_ifname(session, mac_addr)
if try_dhclint:
session.cmd("dhclient %s" % iface_name)
ip_addr = utils_misc.wait_for(f, 10)
else:
# No IP for the interface, just print the interface name
logging.warn("Find '%s' with MAC address '%s', "
"but which has no IP address", iface_name,
mac_addr)
finally:
session.close()
return ip_addr
def check_net_lease(net_leases, expected_find=True):
"""
Check the dhcp lease info.
"""
if not net_leases:
if expected_find:
test.fail("Lease info is empty")
else:
logging.debug("No dhcp lease info find as expected")
else:
if not expected_find:
test.fail("Find unexpected dhcp lease info: %s"
% net_leases)
find_mac = False
for net_lease in net_leases:
net_mac = net_lease['MAC address']
net_ip = net_lease['IP address'][:-3]
if vm_xml.VMXML.get_iface_by_mac(vm_name, net_mac):
find_mac = True
logging.debug("Find '%s' in domain XML", net_mac)
else:
logging.debug("Not find '%s' in domain XML", net_mac)
continue
iface_ip = get_ip_by_mac(net_mac)
if iface_ip and iface_ip != net_ip:
test.fail("Address '%s' is not expected" % iface_ip)
if expected_find and not find_mac:
test.fail("No matched MAC address")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if vm.is_alive():
vm.destroy(gracefully=False)
login_nic_index = 0
new_nic_index = 0
# Cleanup dirty dnsmaq, firstly get all network,and destroy all networks except
# default
net_state = virsh.net_state_dict(only_names=True)
logging.debug("current networks: %s, destroy and undefine networks "
"except default!", net_state)
for net in net_state:
if net != "default":
virsh.net_destroy(net)
virsh.net_undefine(net)
cmd = "ps aux|grep dnsmasq|grep -v grep | grep -v default | awk '{print $2}'"
pid_list = results_stdout_52lts(process.run(cmd, shell=True)).strip().splitlines()
logging.debug(pid_list)
for pid in pid_list:
utils_misc.safe_kill(pid, signal.SIGKILL)
# Create new network
if prepare_net:
create_network()
nets = virsh.net_state_dict()
if net_name not in list(nets.keys()) and not status_error:
test.error("Not find network '%s'" % net_name)
expected_find = False
try:
result = virsh.net_dhcp_leases(net_name,
mac=nic_mac,
options=net_option,
debug=True,
ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
if not status_error:
iface_mac = utils_net.generate_mac_address_simple()
if filter_by_mac:
nic_mac = iface_mac
op = "--type network --model virtio --source %s --mac %s" \
% (net_name, iface_mac)
nic_params = {'mac': iface_mac, 'nettype': 'bridge',
'ip_version': 'ipv4'}
login_timeout = 120
if not hotplug_iface:
op += " --config"
virsh.attach_interface(vm_name, option=op, debug=True,
ignore_status=False)
vm.add_nic(**nic_params)
vm.start()
new_nic_index = vm.get_nic_index_by_mac(iface_mac)
if new_nic_index > 0:
login_nic_index = new_nic_index
else:
vm.start()
# wait for VM start before hotplug interface
vm.wait_for_serial_login()
virsh.attach_interface(vm_name, option=op, debug=True,
ignore_status=False)
vm.add_nic(**nic_params)
# As VM already started, so the login timeout could be shortened
login_timeout = 10
new_interface_ip = get_ip_by_mac(iface_mac, try_dhclint=True,
timeout=login_timeout)
# Allocate IP address for the new interface may fail, so only
# check the result if get new IP address
if new_interface_ip:
expected_find = True
result = virsh.net_dhcp_leases(net_name, mac=nic_mac,
debug=False, ignore_status=True)
utlv.check_exit_status(result, status_error)
lease = get_net_dhcp_leases(result.stdout.strip())
check_net_lease(lease, expected_find)
else:
if expect_msg:
utlv.check_result(result, expect_msg.split(';'))
finally:
# Delete the new attached interface
if new_nic_index > 0:
vm.del_nic(new_nic_index)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
if prepare_net:
virsh.net_destroy(net_name)
def run(test, params, env):
"""
Test the libvirt-nss module did work properly
1. Install the libvirt-nss package if it is not exists;
2. Configure the "/etc/nsswitch.conf";
3. Start the vm and check if the libvirt-nss module works properly by checking if the guest's hostname or
domain name can be resolved successfully
"""
nss_option = params.get("nss_option", None)
guest_name = params.get("guest_name", "nssguest")
net_name = params.get("net_name", "default")
conf_file = "/etc/nsswitch.conf"
bak_path = "/etc/nsswitch.conf.bak"
try:
if not utils_package.package_install(["libvirt-nss"]):
test.error("Failed to install libvirt-nss on host")
if nss_option:
backup_conf_cmd = "cp %s %s" % (conf_file, bak_path)
edit_cmd = "sed -i 's/^hosts.*files/& %s/' %s" % (nss_option,
conf_file)
process.run(backup_conf_cmd, shell=True, ignore_status=True)
process.run(edit_cmd,
shell=True,
ignore_status=False,
verbose=True)
out = process.run("grep ^hosts %s" % conf_file,
shell=True).stdout_text
logging.debug("current setting in %s: %s" % (conf_file, out))
# confirm there is an interface connected to default, then start vm
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
if vm.is_alive():
vm.destroy(gracefully=False)
# make sure the vm is using default network
vmxml = vmxml_backup = libvirt_xml.VMXML.new_from_inactive_dumpxml(
vm_name)
iface_xml = vmxml.get_devices('interface')[0]
vmxml.del_device(iface_xml)
new_iface = interface.Interface('network')
new_iface.xml = iface_xml.xml
new_iface.type_name = "network"
new_iface.source = {'network': net_name}
vmxml.add_device(new_iface)
vmxml.sync()
vm.start()
if nss_option == "libvirt":
test_name = guest_name
session = vm.wait_for_login()
s = set_guest_hostname(session, test_name)
if not s:
test.cancel("Set hostname on guest failed")
# Restart the NetworkManager service on guest to ensure the new hostname
# will be stated during dhcp ip address applying.
cmd = "systemctl restart NetworkManager"
if session.cmd_status(cmd):
test.cancel("Restart NetworkManager on guest fail!")
session.close()
result = virsh.net_dhcp_leases(net_name,
debug=False,
ignore_status=True).stdout_text
logging.debug("the net-dhcp-lease output: '%s'" % result)
if test_name not in result:
test.error(
"net-dhcp-leases does not show the guest's name correctly")
elif nss_option == "libvirt_guest":
test_name = vm_name
# confirm guest boot successfully and get ip address
session = vm.wait_for_login()
session.close()
if nss_option:
state = check_nss(test_name)
if not state:
test.fail("Host can not access to guest by the %s" % test_name)
finally:
if os.path.exists(bak_path):
process.run("mv %s %s" % (bak_path, conf_file),
shell=True,
ignore_status=False)
vmxml_backup.sync()
