def run_mac_change(test, params, env):
"""
Change MAC address of guest.
1) Get a new mac from pool, and the old mac addr of guest.
2) Set new mac in guest and regain new IP.
3) Re-log into guest with new MAC.
@param test: KVM test object.
@param params: Dictionary with the test parameters.
@param env: Dictionary with test environment.
"""
vm = env.get_vm(params["main_vm"])
vm.verify_alive()
timeout = int(params.get("login_timeout", 360))
session_serial = vm.wait_for_serial_login(timeout=timeout)
# This session will be used to assess whether the IP change worked
session = vm.wait_for_login(timeout=timeout)
old_mac = vm.get_mac_address(0)
while True:
vm.free_mac_address(0)
new_mac = virt_utils.generate_mac_address(vm.instance, 0)
if old_mac != new_mac:
break
logging.info("The initial MAC address is %s", old_mac)
interface = virt_test_utils.get_linux_ifname(session_serial, old_mac)
# Start change MAC address
logging.info("Changing MAC address to %s", new_mac)
change_cmd = ("ifconfig %s down && ifconfig %s hw ether %s && "
"ifconfig %s up" %
(interface, interface, new_mac, interface))
session_serial.cmd(change_cmd)
# Verify whether MAC address was changed to the new one
logging.info("Verifying the new mac address")
session_serial.cmd("ifconfig | grep -i %s" % new_mac)
# Restart `dhclient' to regain IP for new mac address
logging.info("Restart the network to gain new IP")
dhclient_cmd = "dhclient -r && dhclient %s" % interface
session_serial.sendline(dhclient_cmd)
# Re-log into the guest after changing mac address
if virt_utils.wait_for(session.is_responsive, 120, 20, 3):
# Just warning when failed to see the session become dead,
# because there is a little chance the ip does not change.
logging.warn("The session is still responsive, settings may fail.")
session.close()
# Re-log into guest and check if session is responsive
logging.info("Re-log into the guest")
session = vm.wait_for_login(timeout=timeout)
if not session.is_responsive():
raise error.TestFail("The new session is not responsive.")
session.close()
def run_mac_change(test, params, env):
"""
Change MAC address of guest.
1) Get a new mac from pool, and the old mac addr of guest.
2) Set new mac in guest and regain new IP.
3) Re-log into guest with new MAC.
@param test: KVM test object.
@param params: Dictionary with the test parameters.
@param env: Dictionary with test environment.
"""
vm = env.get_vm(params["main_vm"])
vm.verify_alive()
timeout = int(params.get("login_timeout", 360))
session_serial = vm.wait_for_serial_login(timeout=timeout)
# This session will be used to assess whether the IP change worked
session = vm.wait_for_login(timeout=timeout)
old_mac = vm.get_mac_address(0)
while True:
vm.free_mac_address(0)
new_mac = virt_utils.generate_mac_address(vm.instance, 0)
if old_mac != new_mac:
break
logging.info("The initial MAC address is %s", old_mac)
interface = virt_test_utils.get_linux_ifname(session_serial, old_mac)
# Start change MAC address
logging.info("Changing MAC address to %s", new_mac)
change_cmd = ("ifconfig %s down && ifconfig %s hw ether %s && "
"ifconfig %s up" % (interface, interface, new_mac, interface))
session_serial.cmd(change_cmd)
# Verify whether MAC address was changed to the new one
logging.info("Verifying the new mac address")
session_serial.cmd("ifconfig | grep -i %s" % new_mac)
# Restart `dhclient' to regain IP for new mac address
logging.info("Restart the network to gain new IP")
dhclient_cmd = "dhclient -r && dhclient %s" % interface
session_serial.sendline(dhclient_cmd)
# Re-log into the guest after changing mac address
if virt_utils.wait_for(session.is_responsive, 120, 20, 3):
# Just warning when failed to see the session become dead,
# because there is a little chance the ip does not change.
logging.warn("The session is still responsive, settings may fail.")
session.close()
# Re-log into guest and check if session is responsive
logging.info("Re-log into the guest")
session = vm.wait_for_login(timeout=timeout)
if not session.is_responsive():
raise error.TestFail("The new session is not responsive.")
session.close()
def run_nic_hotplug(test, params, env):
"""
Test hotplug of NIC devices
1) Boot up guest with one nic
2) Add a host network device through monitor cmd and check if it's added
3) Add nic device through monitor cmd and check if it's added
4) Check if new interface gets ip address
5) Disable primary link of guest
6) Ping guest new ip from host
7) Delete nic device and netdev
8) Re-enable primary link of guest
@param test: KVM test object.
@param params: Dictionary with the test parameters.
@param env: Dictionary with test environment.
"""
vm = virt_test_utils.get_living_vm(env, params.get("main_vm"))
timeout = int(params.get("login_timeout", 360))
guest_delay = int(params.get("guest_delay", 20))
session = virt_test_utils.wait_for_login(vm, timeout=timeout)
romfile = params.get("romfile")
# Modprobe the module if specified in config file
module = params.get("modprobe_module")
if module:
session.get_command_output("modprobe %s" % module)
def netdev_add(vm):
netdev_id = virt_utils.generate_random_id()
attach_cmd = ("netdev_add tap,id=%s" % netdev_id)
nic_script = params.get("nic_script")
if nic_script:
attach_cmd += ",script=%s" % virt_utils.get_path(
vm.root_dir, nic_script)
netdev_extra_params = params.get("netdev_extra_params")
if netdev_extra_params:
attach_cmd += ",%s" % netdev_extra_params
logging.info("Adding netdev through %s", attach_cmd)
vm.monitor.cmd(attach_cmd)
network = vm.monitor.info("network")
if netdev_id not in network:
logging.error(network)
raise error.TestError("Fail to add netdev: %s" % netdev_id)
else:
return netdev_id
def netdev_del(vm, n_id):
vm.monitor.cmd("netdev_del %s" % n_id)
network = vm.monitor.info("network")
if n_id in network:
logging.error(network)
raise error.TestError("Fail to remove netdev %s" % n_id)
def nic_add(vm, model, netdev_id, mac, rom=None):
"""
Add a nic to virtual machine
@vm: VM object
@model: nic model
@netdev_id: id of netdev
@mac: Mac address of new nic
@rom: Rom file
"""
nic_id = virt_utils.generate_random_id()
if model == "virtio":
model = "virtio-net-pci"
device_add_cmd = "device_add %s,netdev=%s,mac=%s,id=%s" % (
model, netdev_id, mac, nic_id)
if rom:
device_add_cmd += ",romfile=%s" % rom
logging.info("Adding nic through %s", device_add_cmd)
vm.monitor.cmd(device_add_cmd)
qdev = vm.monitor.info("qtree")
if not nic_id in qdev:
logging.error(qdev)
raise error.TestFail("Device %s was not plugged into qdev"
"tree" % nic_id)
else:
return nic_id
def nic_del(vm, nic_id, wait=True):
"""
Remove the nic from pci tree.
@vm: VM object
@id: the nic id
@wait: Whether need to wait for the guest to unplug the device
"""
nic_del_cmd = "device_del %s" % nic_id
vm.monitor.cmd(nic_del_cmd)
if wait:
logging.info("waiting for the guest to finish the unplug")
if not virt_utils.wait_for(
lambda: nic_id not in vm.monitor.info("qtree"),
guest_delay, 5, 1):
logging.error(vm.monitor.info("qtree"))
raise error.TestError("Device is not unplugged by "
"guest, please check whether the "
"hotplug module was loaded in guest")
logging.info("Attach a virtio nic to vm")
mac = virt_utils.generate_mac_address(vm.instance, 1)
if not mac:
mac = "00:00:02:00:00:02"
netdev_id = netdev_add(vm)
device_id = nic_add(vm, "virtio", netdev_id, mac, romfile)
if "Win" not in params.get("guest_name", ""):
session.sendline("dhclient %s &" %
virt_test_utils.get_linux_ifname(session, mac))
logging.info("Shutting down the primary link")
vm.monitor.cmd("set_link %s down" % vm.netdev_id[0])
try:
logging.info("Waiting for new nic's ip address acquisition...")
if not virt_utils.wait_for(
lambda: (vm.address_cache.get(mac) is not None), 10, 1):
raise error.TestFail("Could not get ip address of new nic")
ip = vm.address_cache.get(mac)
if not virt_utils.verify_ip_address_ownership(ip, mac):
raise error.TestFail("Could not verify the ip address of new nic")
else:
logging.info("Got the ip address of new nic: %s", ip)
logging.info("Ping test the new nic ...")
s, o = virt_test_utils.ping(ip, 100)
if s != 0:
logging.error(o)
raise error.TestFail("New nic failed ping test")
logging.info("Detaching a virtio nic from vm")
nic_del(vm, device_id)
netdev_del(vm, netdev_id)
finally:
vm.free_mac_address(1)
logging.info("Re-enabling the primary link")
vm.monitor.cmd("set_link %s up" % vm.netdev_id[0])
def run_nic_hotplug(test, params, env):
"""
Test hotplug of NIC devices
1) Boot up guest with one nic
2) Add a host network device through monitor cmd and check if it's added
3) Add nic device through monitor cmd and check if it's added
4) Check if new interface gets ip address
5) Disable primary link of guest
6) Ping guest new ip from host
7) Delete nic device and netdev
8) Re-enable primary link of guest
@param test: KVM test object.
@param params: Dictionary with the test parameters.
@param env: Dictionary with test environment.
"""
vm = virt_test_utils.get_living_vm(env, params.get("main_vm"))
timeout = int(params.get("login_timeout", 360))
guest_delay = int(params.get("guest_delay", 20))
session = virt_test_utils.wait_for_login(vm, timeout=timeout)
romfile = params.get("romfile")
# Modprobe the module if specified in config file
module = params.get("modprobe_module")
if module:
session.get_command_output("modprobe %s" % module)
def netdev_add(vm):
netdev_id = virt_utils.generate_random_id()
attach_cmd = ("netdev_add tap,id=%s" % netdev_id)
nic_script = params.get("nic_script")
if nic_script:
attach_cmd += ",script=%s" % virt_utils.get_path(vm.root_dir,
nic_script)
netdev_extra_params = params.get("netdev_extra_params")
if netdev_extra_params:
attach_cmd += ",%s" % netdev_extra_params
logging.info("Adding netdev through %s", attach_cmd)
vm.monitor.cmd(attach_cmd)
network = vm.monitor.info("network")
if netdev_id not in network:
logging.error(network)
raise error.TestError("Fail to add netdev: %s" % netdev_id)
else:
return netdev_id
def netdev_del(vm, n_id):
vm.monitor.cmd("netdev_del %s" % n_id)
network = vm.monitor.info("network")
if n_id in network:
logging.error(network)
raise error.TestError("Fail to remove netdev %s" % n_id)
def nic_add(vm, model, netdev_id, mac, rom=None):
"""
Add a nic to virtual machine
@vm: VM object
@model: nic model
@netdev_id: id of netdev
@mac: Mac address of new nic
@rom: Rom file
"""
nic_id = virt_utils.generate_random_id()
if model == "virtio":
model = "virtio-net-pci"
device_add_cmd = "device_add %s,netdev=%s,mac=%s,id=%s" % (model,
netdev_id,
mac, nic_id)
if rom:
device_add_cmd += ",romfile=%s" % rom
logging.info("Adding nic through %s", device_add_cmd)
vm.monitor.cmd(device_add_cmd)
qdev = vm.monitor.info("qtree")
if not nic_id in qdev:
logging.error(qdev)
raise error.TestFail("Device %s was not plugged into qdev"
"tree" % nic_id)
else:
return nic_id
def nic_del(vm, nic_id, wait=True):
"""
Remove the nic from pci tree.
@vm: VM object
@id: the nic id
@wait: Whether need to wait for the guest to unplug the device
"""
nic_del_cmd = "device_del %s" % nic_id
vm.monitor.cmd(nic_del_cmd)
if wait:
logging.info("waiting for the guest to finish the unplug")
if not virt_utils.wait_for(lambda: nic_id not in
vm.monitor.info("qtree"),
guest_delay, 5 ,1):
logging.error(vm.monitor.info("qtree"))
raise error.TestError("Device is not unplugged by "
"guest, please check whether the "
"hotplug module was loaded in guest")
logging.info("Attach a virtio nic to vm")
mac = virt_utils.generate_mac_address(vm.instance, 1)
if not mac:
mac = "00:00:02:00:00:02"
netdev_id = netdev_add(vm)
device_id = nic_add(vm, "virtio", netdev_id, mac, romfile)
if "Win" not in params.get("guest_name", ""):
session.sendline("dhclient %s &" %
virt_test_utils.get_linux_ifname(session, mac))
logging.info("Shutting down the primary link")
vm.monitor.cmd("set_link %s down" % vm.netdev_id[0])
try:
logging.info("Waiting for new nic's ip address acquisition...")
if not virt_utils.wait_for(lambda: (vm.address_cache.get(mac) is
not None), 10, 1):
raise error.TestFail("Could not get ip address of new nic")
ip = vm.address_cache.get(mac)
if not virt_utils.verify_ip_address_ownership(ip, mac):
raise error.TestFail("Could not verify the ip address of new nic")
else:
logging.info("Got the ip address of new nic: %s", ip)
logging.info("Ping test the new nic ...")
s, o = virt_test_utils.ping(ip, 100)
if s != 0:
logging.error(o)
raise error.TestFail("New nic failed ping test")
logging.info("Detaching a virtio nic from vm")
nic_del(vm, device_id)
netdev_del(vm, netdev_id)
finally:
vm.free_mac_address(1)
logging.info("Re-enabling the primary link")
vm.monitor.cmd("set_link %s up" % vm.netdev_id[0])
