def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 10)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Can't find ip address on guest")
ping_cmd = "ping -c 5"
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ping_cmd = "ping6 -c 5"
ip_gateway = net_ipv6_address
if ip_gateway:
if utils.system("%s %s" % (ping_cmd, ip_gateway),
ignore_status=True):
raise error.TestFail("Failed to ping gateway address: %s"
% ip_gateway)
def get_ping_dest(vm_session, mac_addr="", restart_network=False):
"""
Get an ip address to ping
:param vm_session: The session object to the guest
:param mac_addr: mac address of given interface
:param restart_network: Whether to restart guest's network
:return: ip address
"""
if restart_network:
if not utils_package.package_install('dhcp-client',
session=vm_session):
raise exceptions.TestFail(
"Failed to install dhcp-client on guest.")
utils_net.restart_guest_network(vm_session)
vm_iface = utils_net.get_linux_ifname(vm_session, mac_addr)
if isinstance(vm_iface, list):
iface_name = vm_iface[0]
else:
iface_name = vm_iface
utils_misc.wait_for(
lambda: utils_net.get_net_if_addrs(iface_name, vm_session.cmd_output).
get('ipv4'), 20)
cmd = ("ip route |awk -F '/' '/^[0-9]/, /dev %s/ {print $1}'" % iface_name)
status, output = utils_misc.cmd_status_output(cmd,
shell=True,
session=vm_session)
if status or not output:
raise exceptions.TestError("Failed to run cmd - {}, status - {}, "
"output - {}.".format(cmd, status, output))
return re.sub('\d+$', '1', output.strip().splitlines()[-1])
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 10)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Can't find ip address on guest")
ping_cmd = "ping -c 5"
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ping_cmd = "ping6 -c 5"
ip_gateway = net_ipv6_address
if ip_gateway:
if utils.system("%s %s" % (ping_cmd, ip_gateway),
ignore_status=True):
raise error.TestFail("Failed to ping gateway address: %s"
% ip_gateway)
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
if not get_ip_func():
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
test.fail("Can't find ip address on guest")
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ip_gateway = net_ipv6_address
# Cleanup ip6talbes on host for ping6 test
process.system("ip6tables -F")
if ip_gateway and not routes:
ping_s, _ = ping(dest=ip_gateway, count=5,
timeout=10, session=session)
if ping_s:
test.fail("Failed to ping gateway address: %s" % ip_gateway)
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
if not get_ip_func():
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Can't find ip address on guest")
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ip_gateway = net_ipv6_address
# Cleanup ip6talbes on host for ping6 test
utils.run("ip6tables -F")
if ip_gateway and not routes:
ping_s, _ = ping(dest=ip_gateway, count=5,
timeout=10, session=session)
if ping_s:
raise error.TestFail("Failed to ping gateway address: %s"
% ip_gateway)
def get_guest_ip(session, mac):
"""
Wrapper function to get guest ip address
"""
utils_net.restart_guest_network(session, mac)
# Wait for IP address is ready
utils_misc.wait_for(
lambda: utils_net.get_guest_ip_addr(session, mac), 10)
return utils_net.get_guest_ip_addr(session, mac)
def get_guest_ip(session, mac):
"""
Wrapper function to get guest ip address
"""
utils_net.restart_guest_network(session, mac)
# Wait for IP address is ready
utils_misc.wait_for(lambda: utils_net.get_guest_ip_addr(session, mac),
10)
return utils_net.get_guest_ip_addr(session, mac)
def check_mcast_network(session):
"""
Check multicast ip address on guests
"""
src_addr = eval(iface_source)['address']
add_session = additional_vm.wait_for_serial_login()
vms_sess_dict = {vm_name: session,
additional_vm.name: add_session}
# Check mcast address on host
cmd = "netstat -g | grep %s" % src_addr
if utils.run(cmd, ignore_status=True).exit_status:
raise error.TestFail("Can't find multicast ip address"
" on host")
vms_ip_dict = {}
# Get ip address on each guest
for vms in vms_sess_dict.keys():
vm_mac = vm_xml.VMXML.get_first_mac_by_name(vms)
utils_net.restart_guest_network(vms_sess_dict[vms], vm_mac)
vm_ip = utils_net.get_guest_ip_addr(vms_sess_dict[vms],
vm_mac)
if not vm_ip:
raise error.TestFail("Can't get multicast ip"
" address on guest")
vms_ip_dict.update({vms: vm_ip})
if len(set(vms_ip_dict.values())) != len(vms_sess_dict):
raise error.TestFail("Got duplicated multicast ip address")
logging.debug("Found ips on guest: %s", vms_ip_dict)
# Run omping server on host
if not utils_misc.yum_install(["omping"]):
raise error.TestNAError("Failed to install omping"
" on host")
cmd = ("iptables -F;omping -m %s %s" %
(src_addr, "192.168.122.1 %s" %
' '.join(vms_ip_dict.values())))
# Run a backgroup job waiting for connection of client
bgjob = utils.AsyncJob(cmd)
# Run omping client on guests
for vms in vms_sess_dict.keys():
# omping should be installed first
if not utils_misc.yum_install(["omping"], vms_sess_dict[vms]):
raise error.TestNAError("Failed to install omping"
" on guest")
cmd = ("iptables -F; omping -c 5 -T 5 -m %s %s" %
(src_addr, "192.168.122.1 %s" %
vms_ip_dict[vms]))
ret, output = vms_sess_dict[vms].cmd_status_output(cmd)
logging.debug("omping ret: %s, output: %s", ret, output)
if (not output.count('multicast, xmt/rcv/%loss = 5/5/0%') or
not output.count('unicast, xmt/rcv/%loss = 5/5/0%')):
raise error.TestFail("omping failed on guest")
# Kill the backgroup job
bgjob.kill_func()
def renew_ip_address(session, mac, guest_os_type):
"""
Renew ip for plugged nic
:param session: Vm session
:param mac: The mac address of plugged interface
:param guest_os_type: Guest os type, Linux or Windows
"""
if guest_os_type == 'Windows':
utils_net.restart_windows_guest_network_by_key(
session, "macaddress", mac)
ifname = utils_net.get_linux_ifname(session, mac)
utils_net.create_network_script(ifname, mac, 'dhcp', '255.255.255.0')
utils_net.restart_guest_network(session, mac)
arp_clean = "arp -n|awk '/^[1-9]/{print \"arp -d \" $1}'|sh"
session.cmd_output_safe(arp_clean)
def ping_test(restart_network=False):
"""
Basic ping test for interface
:param restart_network: True or False. Whether to restart network
:raise: test.fail if ping test fails
"""
session = vm.wait_for_login()
if restart_network:
utils_net.restart_guest_network(session)
dest = params.get('ping_dest', 'www.baidu.com')
status, output = utils_test.ping(dest, 10, session=session, timeout=20)
session.close()
if status != 0:
test.fail("Ping failed, status: %s,"
" output: %s" % (status, output))
def check_user_network(session):
"""
Check user network ip address on guest
"""
vm_ips = []
utils_net.restart_guest_network(session)
# Wait for IP address is ready
utils_misc.wait_for(lambda: utils_net.get_guest_ip_addr(session,
iface_mac_old),
10)
vm_ips.append(utils_net.get_guest_ip_addr(session,
iface_mac_old))
if attach_device:
# Get the additional interafce ip address
# Wait for IP address is ready
utils_misc.wait_for(lambda: utils_net.get_guest_ip_addr(session,
iface_mac),
10)
vm_ips.append(utils_net.get_guest_ip_addr(session,
iface_mac))
logging.debug("IP address on guest: %s", vm_ips)
if len(vm_ips) != len(set(vm_ips)):
raise error.TestFail("Duplicated IP address on guest. "
"Check bug: https://bugzilla.redhat."
"com/show_bug.cgi?id=1147238")
for vm_ip in vm_ips:
if vm_ip is None or not vm_ip.startswith("10.0.2."):
raise error.TestFail("Found wrong IP address"
"on guest")
# Check gateway address
gateway = utils_net.get_net_gateway(session.cmd_output)
if gateway != "10.0.2.2":
raise error.TestFail("The gateway on guest is not"
" right")
# Check dns server address
ns_list = utils_net.get_net_nameserver(session.cmd_output)
if "10.0.2.3" not in ns_list:
raise error.TestFail("The dns server can't be found"
" on guest")
def run(test, params, env):
"""
Test interafce xml options.
1.Prepare test environment,destroy or suspend a VM.
2.Edit xml and start the domain.
3.Perform test operation.
4.Recover test environment.
5.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
def prepare_pxe_boot():
"""
Prepare tftp server and pxe boot files
"""
pkg_list = ["syslinux", "tftp-server",
"tftp", "ipxe-roms-qemu", "wget"]
# Try to install required packages
if not utils_misc.yum_install(pkg_list):
raise error.TestNAError("Failed ot install "
"required packages")
boot_initrd = params.get("boot_initrd")
boot_vmlinuz = params.get("boot_vmlinuz")
# Download pxe boot images
utils.run("wget %s -O %s/initrd.img"
% (boot_initrd, tftp_root))
utils.run("wget %s -O %s/vmlinuz"
% (boot_vmlinuz, tftp_root))
utils.run("cp -f /usr/share/syslinux/pxelinux.0 {0};"
" mkdir -m 777 -p {0}/pxelinux.cfg".format(tftp_root))
pxe_file = "%s/pxelinux.cfg/default" % tftp_root
boot_txt = """
DISPLAY boot.txt
DEFAULT rhel
LABEL rhel
kernel vmlinuz
append initrd=initrd.img
PROMPT 1
TIMEOUT 3"""
with open(pxe_file, 'w') as p_file:
p_file.write(boot_txt)
def modify_iface_xml():
"""
Modify interface xml options
"""
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
if pxe_boot:
# Config boot console for pxe boot
osxml = vm_xml.VMOSXML()
osxml.type = vmxml.os.type
osxml.arch = vmxml.os.arch
osxml.machine = vmxml.os.machine
osxml.loader = "/usr/share/seabios/bios.bin"
osxml.bios_useserial = "yes"
osxml.bios_reboot_timeout = "-1"
osxml.boots = ['network']
del vmxml.os
vmxml.os = osxml
xml_devices = vmxml.devices
iface_index = xml_devices.index(
xml_devices.by_device_tag("interface")[0])
iface = xml_devices[iface_index]
iface_bandwidth = {}
iface_inbound = eval(iface_bandwidth_inbound)
iface_outbound = eval(iface_bandwidth_outbound)
if iface_inbound:
iface_bandwidth["inbound"] = iface_inbound
if iface_outbound:
iface_bandwidth["outbound"] = iface_outbound
if iface_bandwidth:
bandwidth = iface.new_bandwidth(**iface_bandwidth)
iface.bandwidth = bandwidth
iface_source = params.get("iface_source")
if iface_source:
source = eval(iface_source)
if source:
iface.source = source
logging.debug("New interface xml file: %s", iface)
vmxml.devices = xml_devices
vmxml.xmltreefile.write()
vmxml.sync()
def run_dnsmasq_default_test(key, value=None, exists=True):
"""
Test dnsmasq configuration.
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.conf"
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if value:
config = "%s=%s" % (key, value)
else:
config = key
if not configs.count(config):
if exists:
raise error.TestFail("Can't find %s=%s in configuration"
" file" % (key, value))
else:
if not exists:
raise error.TestFail("Found %s=%s in configuration"
" file" % (key, value))
def run_dnsmasq_addnhosts_test(hostip, hostnames):
"""
Test host ip and names configuration
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.addnhosts"
hosts_re = ".*".join(hostnames)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not re.search(r"%s.*%s" % (hostip, hosts_re), configs, re.M):
raise error.TestFail("Can't find '%s' in configuration"
" file" % hostip)
def run_dnsmasq_host_test(iface_mac, guest_ip, guest_name):
"""
Test host name and ip configuration for dnsmasq
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.hostsfile"
config = "%s,%s,%s" % (iface_mac, guest_ip, guest_name)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not configs.count(config):
raise error.TestFail("Can't find host configuration"
" in file %s" % conf_file)
def check_class_rules(ifname, rule_id, bandwidth):
"""
Check bandwidth settings via 'tc class' output
"""
cmd = "tc class show dev %s" % ifname
class_output = utils.run(cmd).stdout
logging.debug("Bandwidth class output: %s", class_output)
class_pattern = (r"class htb %s.*rate (\d+)Kbit ceil"
" (\d+)Kbit burst (\d+)(K?M?)b.*" % rule_id)
se = re.search(class_pattern, class_output, re.M)
if not se:
raise error.TestFail("Can't find outbound setting"
" for htb %s" % rule_id)
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
ceil = None
if bandwidth.has_key("floor"):
ceil = int(bandwidth["floor"]) * 8
elif bandwidth.has_key("average"):
ceil = int(bandwidth["average"]) * 8
if ceil:
assert int(se.group(1)) == ceil
if bandwidth.has_key("peak"):
assert int(se.group(2)) == int(bandwidth["peak"]) * 8
if bandwidth.has_key("burst"):
if se.group(4) == 'M':
tc_burst = int(se.group(3)) * 1024
else:
tc_burst = int(se.group(3))
assert tc_burst == int(bandwidth["burst"])
def check_filter_rules(ifname, bandwidth):
"""
Check bandwidth settings via 'tc filter' output
"""
cmd = "tc -d filter show dev %s parent ffff:" % ifname
filter_output = utils.run(cmd).stdout
logging.debug("Bandwidth filter output: %s", filter_output)
if not filter_output.count("filter protocol all pref"):
raise error.TestFail("Can't find 'protocol all' settings"
" in filter rules")
filter_pattern = ".*police.*rate (\d+)Kbit burst (\d+)Kb.*"
se = re.search(r"%s" % filter_pattern, filter_output, re.M)
if not se:
raise error.TestFail("Can't find any filter policy")
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
if bandwidth.has_key("average"):
assert int(se.group(1)) == int(bandwidth["average"]) * 8
if bandwidth.has_key("burst"):
assert int(se.group(2)) == int(bandwidth["burst"])
def run_bandwidth_test(check_net=False, check_iface=False):
"""
Test bandwidth option for network or interface by tc command.
"""
iface_inbound = eval(iface_bandwidth_inbound)
iface_outbound = eval(iface_bandwidth_outbound)
net_inbound = eval(net_bandwidth_inbound)
net_outbound = eval(net_bandwidth_outbound)
net_bridge_name = eval(net_bridge)["name"]
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
try:
if check_net and net_inbound:
# Check qdisc rules
cmd = "tc -d qdisc show dev %s" % net_bridge_name
qdisc_output = utils.run(cmd).stdout
logging.debug("Bandwidth qdisc output: %s", qdisc_output)
if not qdisc_output.count("qdisc ingress ffff:"):
raise error.TestFail("Can't find ingress setting")
check_class_rules(net_bridge_name, "1:1",
{"average": net_inbound["average"],
"peak": net_inbound["peak"]})
check_class_rules(net_bridge_name, "1:2", net_inbound)
# Check filter rules on bridge interface
if check_net and net_outbound:
check_filter_rules(net_bridge_name, net_outbound)
# Check class rules on interface inbound settings
if check_iface and iface_inbound:
check_class_rules(iface_name, "1:1",
{'average': iface_inbound['average'],
'peak': iface_inbound['peak'],
'burst': iface_inbound['burst']})
if iface_inbound.has_key("floor"):
check_class_rules(net_bridge_name, "1:3",
{'floor': iface_inbound["floor"]})
# Check filter rules on interface outbound settings
if check_iface and iface_outbound:
check_filter_rules(iface_name, iface_outbound)
except AssertionError:
utils.log_last_traceback()
raise error.TestFail("Failed to check network bandwidth")
def check_name_ip(session):
"""
Check dns resolving on guest
"""
# Check if bind-utils is installed
if not utils_misc.yum_install(['bind-utils'], session):
raise error.TestNAError("Failed to install bind-utils"
" on guest")
# Run host command to check if hostname can be resolved
if not guest_ipv4 and not guest_ipv6:
raise error.TestFail("No ip address found from parameters")
guest_ip = guest_ipv4 if guest_ipv4 else guest_ipv6
cmd = "host %s | grep %s" % (guest_name, guest_ip)
if session.cmd_status(cmd):
raise error.TestFail("Can't resolve name %s on guest" %
guest_name)
def check_ipt_rules(check_ipv4=True, check_ipv6=False):
"""
Check iptables for network/interface
"""
br_name = eval(net_bridge)["name"]
net_forward = eval(params.get("net_forward", "{}"))
net_ipv4 = params.get("net_ipv4")
net_ipv6 = params.get("net_ipv6")
ipt_rules = ("FORWARD -i {0} -o {0} -j ACCEPT".format(br_name),
"FORWARD -o %s -j REJECT --reject-with icmp" % br_name,
"FORWARD -i %s -j REJECT --reject-with icmp" % br_name)
net_dev_in = ""
net_dev_out = ""
if net_forward.has_key("dev"):
net_dev_in = " -i %s" % net_forward["dev"]
net_dev_out = " -o %s" % net_forward["dev"]
if check_ipv4:
ipv4_rules = list(ipt_rules)
ctr_rule = ""
nat_rules = []
if net_forward.has_key("mode") and net_forward["mode"] == "nat":
nat_port = eval(params.get("nat_port"))
p_start = nat_port["start"]
p_end = nat_port["end"]
ctr_rule = " -m conntrack --ctstate RELATED,ESTABLISHED"
nat_rules = ["POSTROUTING -s %s -d 224.0.0.0/24 -j RETURN" % net_ipv4,
"POSTROUTING -s %s -d 255.255.255.255/32 -j RETURN" % net_ipv4,
("POSTROUTING -s {0} ! -d {0} -p tcp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp"
" -j MASQUERADE".format(net_ipv4))]
if nat_rules:
ipv4_rules.extend(nat_rules)
if (net_ipv4 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s%s -j ACCEPT"
% (net_ipv4, net_dev_in, br_name, ctr_rule)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv4, br_name, net_dev_out))]
ipv4_rules.extend(rules)
output = utils.run("iptables-save").stdout.strip()
logging.debug("iptables: %s", output)
for ipt in ipv4_rules:
if not output.count(ipt):
raise error.TestFail("Can't find iptable rule:\n%s" % ipt)
if check_ipv6:
ipv6_rules = list(ipt_rules)
if (net_ipv6 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s -j ACCEPT"
% (net_ipv6, net_dev_in, br_name)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv6, br_name, net_dev_out))]
ipv6_rules.extend(rules)
output = utils.run("ip6tables-save").stdout.strip()
logging.debug("iptables: %s", output)
for ipt in ipv6_rules:
if not output.count(ipt):
raise error.TestFail("Can't find ipbtable rule:\n%s" % ipt)
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 10)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Can't find ip address on guest")
ping_cmd = "ping -c 5"
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ping_cmd = "ping6 -c 5"
ip_gateway = net_ipv6_address
if ip_gateway:
if utils.system("%s %s" % (ping_cmd, ip_gateway),
ignore_status=True):
raise error.TestFail("Failed to ping gateway address: %s"
% ip_gateway)
def run_guest_libvirt(session):
"""
Check guest libvirt network
"""
# Try to install required packages
if not utils_misc.yum_install(['libvirt'], session):
raise error.TestNAError("Failed ot install libvirt"
" package on guest")
result = True
# Check network state on guest
cmd = ("service libvirtd restart; virsh net-info default"
" | grep 'Active:.*no'")
if session.cmd_status(cmd):
result = False
logging.error("Default network isn't in inactive state")
# Try to start default network on guest, check error messages
if result:
cmd = "virsh net-start default"
status, output = session.cmd_status_output(cmd)
logging.debug("Run command on guest exit %s, output %s"
% (status, output))
if not status or not output.count("already in use"):
result = False
logging.error("Failed to see network messges on guest")
if session.cmd_status("rpm -e libvirt"):
logging.error("Failed to remove libvirt packages on guest")
if not result:
raise error.TestFail("Check libvirt network on guest failed")
start_error = "yes" == params.get("start_error", "no")
restart_error = "yes" == params.get("restart_error", "no")
# network specific attributes.
net_name = params.get("net_name", "default")
net_bridge = params.get("net_bridge", "{'name':'virbr0'}")
net_domain = params.get("net_domain")
net_ip_address = params.get("net_ip_address")
net_ipv6_address = params.get("net_ipv6_address")
net_dns_forward = params.get("net_dns_forward")
net_dns_txt = params.get("net_dns_txt")
net_dns_srv = params.get("net_dns_srv")
net_dns_hostip = params.get("net_dns_hostip")
net_dns_hostnames = params.get("net_dns_hostnames", "").split()
dhcp_start_ipv4 = params.get("dhcp_start_ipv4")
dhcp_end_ipv4 = params.get("dhcp_end_ipv4")
guest_name = params.get("guest_name")
guest_ipv4 = params.get("guest_ipv4")
guest_ipv6 = params.get("guest_ipv6")
tftp_root = params.get("tftp_root")
pxe_boot = "yes" == params.get("pxe_boot", "no")
net_bandwidth_inbound = params.get("net_bandwidth_inbound", "{}")
net_bandwidth_outbound = params.get("net_bandwidth_outbound", "{}")
iface_bandwidth_inbound = params.get("iface_bandwidth_inbound", "{}")
iface_bandwidth_outbound = params.get("iface_bandwidth_outbound", "{}")
multiple_guests = params.get("multiple_guests")
create_network = "yes" == params.get("create_network", "no")
serial_login = "******" == params.get("serial_login", "no")
change_iface_option = "yes" == params.get("change_iface_option", "no")
test_bridge = "yes" == params.get("test_bridge", "no")
test_dnsmasq = "yes" == params.get("test_dnsmasq", "no")
test_dhcp_range = "yes" == params.get("test_dhcp_range", "no")
test_dns_host = "yes" == params.get("test_dns_host", "no")
test_qos_bandwidth = "yes" == params.get("test_qos_bandwidth", "no")
test_qos_remove = "yes" == params.get("test_qos_remove", "no")
test_ipv4_address = "yes" == params.get("test_ipv4_address", "no")
test_ipv6_address = "yes" == params.get("test_ipv6_address", "no")
test_guest_libvirt = "yes" == params.get("test_guest_libvirt", "no")
if serial_login:
# Set serial console for serial login
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
# Set console option
vm.set_kernel_console("ttyS0", "115200")
# Shutdown here for sync fs
vm.shutdown()
else:
if vm.is_alive():
vm.destroy(gracefully=False)
# Back up xml file.
netxml_backup = NetworkXML.new_from_net_dumpxml("default")
iface_mac = vm_xml.VMXML.get_first_mac_by_name(vm_name)
params["guest_mac"] = iface_mac
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vms_list = []
# Build the xml and run test.
try:
if test_dnsmasq:
# Check the settings before modifying network xml
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed", exists=False)
run_dnsmasq_default_test("local", "//", exists=False)
if net_domain:
run_dnsmasq_default_test("domain", net_domain, exists=False)
run_dnsmasq_default_test("expand-hosts", exists=False)
# Prepare pxe boot directory
if pxe_boot:
prepare_pxe_boot()
# Edit the network xml or create a new one.
if create_network:
libvirt.create_net_xml(net_name, params)
# Edit the interface xml.
if change_iface_option:
modify_iface_xml()
if multiple_guests:
# Clone more vms for testing
for i in range(int(multiple_guests)):
guest_name = "%s_%s" % (vm_name, i)
utils_libguestfs.virt_clone_cmd(vm_name, guest_name, True)
vms_list.append(vm.clone(guest_name))
if test_bridge:
bridge = eval(net_bridge)
br_if = utils_net.Interface(bridge['name'])
if not br_if.is_up():
raise error.TestFail("Bridge interface isn't up")
if test_dnsmasq:
# Check the settings in dnsmasq config file
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed")
run_dnsmasq_default_test("local", "//")
if net_domain:
run_dnsmasq_default_test("domain", net_domain)
run_dnsmasq_default_test("expand-hosts")
if net_bridge:
bridge = eval(net_bridge)
run_dnsmasq_default_test("interface", bridge['name'])
if bridge.has_key('stp') and bridge['stp'] == 'on':
if bridge.has_key('delay'):
br_delay = float(bridge['delay'])
cmd = ("brctl showstp %s | grep 'bridge forward delay'"
% bridge['name'])
out = utils.run(cmd, ignore_status=False).stdout.strip()
logging.debug("brctl showstp output: %s", out)
pattern = (r"\s*forward delay\s+(\d+.\d+)\s+bridge"
" forward delay\s+(\d+.\d+)")
match_obj = re.search(pattern, out, re.M)
if not match_obj or len(match_obj.groups()) != 2:
raise error.TestFail("Can't see forward delay"
" messages from command")
elif (float(match_obj.groups()[0]) != br_delay or
float(match_obj.groups()[1]) != br_delay):
raise error.TestFail("Foward delay setting"
" can't take effect")
if dhcp_start_ipv4 and dhcp_end_ipv4:
run_dnsmasq_default_test("dhcp-range", "%s,%s"
% (dhcp_start_ipv4, dhcp_end_ipv4))
if guest_name and guest_ipv4:
run_dnsmasq_host_test(iface_mac, guest_ipv4, guest_name)
if test_dns_host:
if net_dns_txt:
dns_txt = eval(net_dns_txt)
run_dnsmasq_default_test("txt-record", "%s,%s" %
(dns_txt["name"],
dns_txt["value"]))
if net_dns_srv:
dns_srv = eval(net_dns_srv)
run_dnsmasq_default_test("srv-host", "_%s._%s.%s,%s,%s,%s,%s" %
(dns_srv["service"], dns_srv["protocol"],
dns_srv["domain"], dns_srv["target"],
dns_srv["port"], dns_srv["priority"],
dns_srv["weight"]))
if net_dns_hostip and net_dns_hostnames:
run_dnsmasq_addnhosts_test(net_dns_hostip, net_dns_hostnames)
# Run bandwidth test for network
if test_qos_bandwidth:
run_bandwidth_test(check_net=True)
try:
# Start the VM.
vm.start()
if start_error:
raise error.TestFail("VM started unexpectedly")
if pxe_boot:
# Just check network boot messages here
vm.serial_console.read_until_output_matches(
["Loading vmlinuz", "Loading initrd.img"],
utils_misc.strip_console_codes)
output = vm.serial_console.get_stripped_output()
logging.debug("Boot messages: %s", output)
else:
if serial_login:
session = vm.wait_for_serial_login()
else:
session = vm.wait_for_login()
if test_dhcp_range:
# First vm should have a valid ip address
utils_net.restart_guest_network(session, iface_mac)
vm_ip = utils_net.get_guest_ip_addr(session, iface_mac)
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Guest has invalid ip address")
# Other vms cloudn't get the ip address
for vms in vms_list:
# Start other VMs.
vms.start()
sess = vms.wait_for_serial_login()
vms_mac = vms.get_virsh_mac_address()
# restart guest network to get ip addr
utils_net.restart_guest_network(sess, vms_mac)
vms_ip = utils_net.get_guest_ip_addr(sess,
vms_mac)
if vms_ip:
# Get IP address on guest should return Null
raise error.TestFail("Guest has ip address: %s"
% vms_ip)
sess.close()
# Check dnsmasq settings if take affect in guest
if guest_ipv4:
check_name_ip(session)
# Run bandwidth test for interface
if test_qos_bandwidth:
run_bandwidth_test(check_iface=True)
if test_qos_remove:
# Remove the bandwidth settings in network xml
logging.debug("Removing network bandwidth settings...")
netxml_backup.sync()
vm.destroy(gracefully=False)
# Should fail to start vm
vm.start()
if restart_error:
raise error.TestFail("VM started unexpectedly")
if test_ipv4_address:
check_ipt_rules(check_ipv4=True)
run_ip_test(session, "ipv4")
if test_ipv6_address:
check_ipt_rules(check_ipv6=True)
run_ip_test(session, "ipv6")
if test_guest_libvirt:
run_guest_libvirt(session)
session.close()
except virt_vm.VMStartError, details:
logging.info(str(details))
if start_error or restart_error:
pass
else:
raise error.TestFail('VM Failed to start for some reason!')
finally:
# Recover VM.
if vm.is_alive():
vm.destroy(gracefully=False)
for vms in vms_list:
virsh.remove_domain(vms.name, "--remove-all-storage")
logging.info("Restoring network...")
if net_name == "default":
netxml_backup.sync()
else:
# Destroy and undefine new created network
virsh.net_destroy(net_name)
virsh.net_undefine(net_name)
vmxml_backup.sync()
def run(test, params, env):
"""
Test interafce xml options.
1.Prepare test environment,destroy or suspend a VM.
2.Edit xml and start the domain.
3.Perform test operation.
4.Recover test environment.
5.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
def prepare_pxe_boot():
"""
Prepare tftp server and pxe boot files
"""
pkg_list = ["syslinux", "tftp-server",
"tftp", "ipxe-roms-qemu", "wget"]
# Try to install required packages
if not utils_misc.yum_install(pkg_list):
raise error.TestError("Failed ot install "
"required packages")
boot_initrd = params.get("boot_initrd", "EXAMPLE_INITRD")
boot_vmlinuz = params.get("boot_vmlinuz", "EXAMPLE_VMLINUZ")
if boot_initrd.count("EXAMPLE") or boot_vmlinuz.count("EXAMPLE"):
raise error.TestNAError("Please provide initrd/vmlinuz URL")
# Download pxe boot images
utils.run("wget %s -O %s/initrd.img"
% (boot_initrd, tftp_root))
utils.run("wget %s -O %s/vmlinuz"
% (boot_vmlinuz, tftp_root))
utils.run("cp -f /usr/share/syslinux/pxelinux.0 {0};"
" mkdir -m 777 -p {0}/pxelinux.cfg".format(tftp_root))
pxe_file = "%s/pxelinux.cfg/default" % tftp_root
boot_txt = """
DISPLAY boot.txt
DEFAULT rhel
LABEL rhel
kernel vmlinuz
append initrd=initrd.img
PROMPT 1
TIMEOUT 3"""
with open(pxe_file, 'w') as p_file:
p_file.write(boot_txt)
def modify_iface_xml():
"""
Modify interface xml options
"""
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
if pxe_boot:
# Config boot console for pxe boot
osxml = vm_xml.VMOSXML()
osxml.type = vmxml.os.type
osxml.arch = vmxml.os.arch
osxml.machine = vmxml.os.machine
osxml.loader = "/usr/share/seabios/bios.bin"
osxml.bios_useserial = "yes"
osxml.bios_reboot_timeout = "-1"
osxml.boots = ['network']
del vmxml.os
vmxml.os = osxml
xml_devices = vmxml.devices
iface_index = xml_devices.index(
xml_devices.by_device_tag("interface")[0])
iface = xml_devices[iface_index]
iface_bandwidth = {}
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
if iface_inbound:
iface_bandwidth["inbound"] = iface_inbound
if iface_outbound:
iface_bandwidth["outbound"] = iface_outbound
if iface_bandwidth:
bandwidth = iface.new_bandwidth(**iface_bandwidth)
iface.bandwidth = bandwidth
iface_type = params.get("iface_type", "network")
iface.type_name = iface_type
source = ast.literal_eval(iface_source)
if not source:
source = {"network": "default"}
net_ifs = utils_net.get_net_if(state="UP")
# Check source device is valid or not,
# if it's not in host interface list, try to set
# source device to first active interface of host
if (iface.type_name == "direct" and
source.has_key('dev') and
source['dev'] not in net_ifs):
logging.warn("Source device %s is not a interface"
" of host, reset to %s",
source['dev'], net_ifs[0])
source['dev'] = net_ifs[0]
del iface.source
iface.source = source
iface_model = params.get("iface_model", "virtio")
iface.model = iface_model
logging.debug("New interface xml file: %s", iface)
vmxml.devices = xml_devices
vmxml.xmltreefile.write()
vmxml.sync()
def run_dnsmasq_default_test(key, value=None, exists=True):
"""
Test dnsmasq configuration.
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.conf"
if not os.path.exists(conf_file):
raise error.TestNAError("Can't find default.conf file")
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if value:
config = "%s=%s" % (key, value)
else:
config = key
if not configs.count(config):
if exists:
raise error.TestFail("Can't find %s=%s in configuration"
" file" % (key, value))
else:
if not exists:
raise error.TestFail("Found %s=%s in configuration"
" file" % (key, value))
def run_dnsmasq_addnhosts_test(hostip, hostnames):
"""
Test host ip and names configuration
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.addnhosts"
hosts_re = ".*".join(hostnames)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not re.search(r"%s.*%s" % (hostip, hosts_re), configs, re.M):
raise error.TestFail("Can't find '%s' in configuration"
" file" % hostip)
def run_dnsmasq_host_test(iface_mac, guest_ip, guest_name):
"""
Test host name and ip configuration for dnsmasq
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.hostsfile"
config = "%s,%s,%s" % (iface_mac, guest_ip, guest_name)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not configs.count(config):
raise error.TestFail("Can't find host configuration"
" in file %s" % conf_file)
def check_class_rules(ifname, rule_id, bandwidth):
"""
Check bandwidth settings via 'tc class' output
"""
cmd = "tc class show dev %s" % ifname
class_output = utils.run(cmd).stdout
logging.debug("Bandwidth class output: %s", class_output)
class_pattern = (r"class htb %s.*rate (\d+)Kbit ceil"
" (\d+)Kbit burst (\d+)(K?M?)b.*" % rule_id)
se = re.search(class_pattern, class_output, re.M)
if not se:
raise error.TestFail("Can't find outbound setting"
" for htb %s" % rule_id)
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
ceil = None
if bandwidth.has_key("floor"):
ceil = int(bandwidth["floor"]) * 8
elif bandwidth.has_key("average"):
ceil = int(bandwidth["average"]) * 8
if ceil:
assert int(se.group(1)) == ceil
if bandwidth.has_key("peak"):
assert int(se.group(2)) == int(bandwidth["peak"]) * 8
if bandwidth.has_key("burst"):
if se.group(4) == 'M':
tc_burst = int(se.group(3)) * 1024
else:
tc_burst = int(se.group(3))
assert tc_burst == int(bandwidth["burst"])
def check_filter_rules(ifname, bandwidth):
"""
Check bandwidth settings via 'tc filter' output
"""
cmd = "tc -d filter show dev %s parent ffff:" % ifname
filter_output = utils.run(cmd).stdout
logging.debug("Bandwidth filter output: %s", filter_output)
if not filter_output.count("filter protocol all pref"):
raise error.TestFail("Can't find 'protocol all' settings"
" in filter rules")
filter_pattern = ".*police.*rate (\d+)Kbit burst (\d+)(K?M?)b.*"
se = re.search(r"%s" % filter_pattern, filter_output, re.M)
if not se:
raise error.TestFail("Can't find any filter policy")
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
logging.debug("bandwidth from setting:%s" % str(bandwidth))
if bandwidth.has_key("average"):
assert int(se.group(1)) == int(bandwidth["average"]) * 8
if bandwidth.has_key("burst"):
if se.group(3) == 'M':
tc_burst = int(se.group(2)) * 1024
else:
tc_burst = int(se.group(2))
assert tc_burst == int(bandwidth["burst"])
def check_host_routes():
"""
Check network routes on host
"""
for rt in routes:
try:
route = ast.literal_eval(rt)
addr = "%s/%s" % (route["address"], route["prefix"])
cmd = "ip route list %s" % addr
if route.has_key("family") and route["family"] == "ipv6":
cmd = "ip -6 route list %s" % addr
output = utils.run(cmd).stdout
match_obj = re.search(r"via (\S+).*metric (\d+)", output)
if match_obj:
via_addr = match_obj.group(1)
metric = match_obj.group(2)
logging.debug("via address %s for %s, matric is %s"
% (via_addr, addr, metric))
assert via_addr == route["gateway"]
if route.has_key("metric"):
assert metric == route["metric"]
except KeyError:
pass
def run_bandwidth_test(check_net=False, check_iface=False):
"""
Test bandwidth option for network or interface by tc command.
"""
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
net_inbound = ast.literal_eval(net_bandwidth_inbound)
net_outbound = ast.literal_eval(net_bandwidth_outbound)
net_bridge_name = ast.literal_eval(net_bridge)["name"]
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
try:
if check_net and net_inbound:
# Check qdisc rules
cmd = "tc -d qdisc show dev %s" % net_bridge_name
qdisc_output = utils.run(cmd).stdout
logging.debug("Bandwidth qdisc output: %s", qdisc_output)
if not qdisc_output.count("qdisc ingress ffff:"):
raise error.TestFail("Can't find ingress setting")
check_class_rules(net_bridge_name, "1:1",
{"average": net_inbound["average"],
"peak": net_inbound["peak"]})
check_class_rules(net_bridge_name, "1:2", net_inbound)
# Check filter rules on bridge interface
if check_net and net_outbound:
check_filter_rules(net_bridge_name, net_outbound)
# Check class rules on interface inbound settings
if check_iface and iface_inbound:
check_class_rules(iface_name, "1:1",
{'average': iface_inbound['average'],
'peak': iface_inbound['peak'],
'burst': iface_inbound['burst']})
if iface_inbound.has_key("floor"):
if not libvirt_version.version_compare(1, 0, 1):
raise error.TestNAError("Not supported Qos"
" options 'floor'")
check_class_rules(net_bridge_name, "1:3",
{'floor': iface_inbound["floor"]})
# Check filter rules on interface outbound settings
if check_iface and iface_outbound:
check_filter_rules(iface_name, iface_outbound)
except AssertionError:
utils.log_last_traceback()
raise error.TestFail("Failed to check network bandwidth")
def check_name_ip(session):
"""
Check dns resolving on guest
"""
# Check if bind-utils is installed
if not utils_misc.yum_install(['bind-utils'], session):
raise error.TestError("Failed to install bind-utils"
" on guest")
# Run host command to check if hostname can be resolved
if not guest_ipv4 and not guest_ipv6:
raise error.TestFail("No ip address found from parameters")
guest_ip = guest_ipv4 if guest_ipv4 else guest_ipv6
cmd = "host %s | grep %s" % (guest_name, guest_ip)
if session.cmd_status(cmd):
raise error.TestFail("Can't resolve name %s on guest" %
guest_name)
def check_ipt_rules(check_ipv4=True, check_ipv6=False):
"""
Check iptables for network/interface
"""
br_name = ast.literal_eval(net_bridge)["name"]
net_forward = ast.literal_eval(params.get("net_forward", "{}"))
net_ipv4 = params.get("net_ipv4")
net_ipv6 = params.get("net_ipv6")
ipt_rules = ("FORWARD -i {0} -o {0} -j ACCEPT".format(br_name),
"FORWARD -o %s -j REJECT --reject-with icmp" % br_name,
"FORWARD -i %s -j REJECT --reject-with icmp" % br_name)
net_dev_in = ""
net_dev_out = ""
if net_forward.has_key("dev"):
net_dev_in = " -i %s" % net_forward["dev"]
net_dev_out = " -o %s" % net_forward["dev"]
if check_ipv4:
ipv4_rules = list(ipt_rules)
ctr_rule = ""
nat_rules = []
if net_forward.has_key("mode") and net_forward["mode"] == "nat":
nat_port = ast.literal_eval(params.get("nat_port"))
p_start = nat_port["start"]
p_end = nat_port["end"]
ctr_rule = " -m .* RELATED,ESTABLISHED"
nat_rules = [("POSTROUTING -s {0} ! -d {0} -p tcp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp"
" -j MASQUERADE".format(net_ipv4))]
if nat_rules:
ipv4_rules.extend(nat_rules)
if (net_ipv4 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s%s -j ACCEPT"
% (net_ipv4, net_dev_in, br_name, ctr_rule)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv4, br_name, net_dev_out))]
ipv4_rules.extend(rules)
output = utils.run("iptables-save").stdout.strip()
logging.debug("iptables: %s", output)
for ipt in ipv4_rules:
if not re.findall(r"%s" % ipt, output, re.M):
raise error.TestFail("Can't find iptable rule:\n%s" % ipt)
if check_ipv6:
ipv6_rules = list(ipt_rules)
if (net_ipv6 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s -j ACCEPT"
% (net_ipv6, net_dev_in, br_name)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv6, br_name, net_dev_out))]
ipv6_rules.extend(rules)
output = utils.run("ip6tables-save").stdout.strip()
logging.debug("iptables: %s", output)
for ipt in ipv6_rules:
if not output.count(ipt):
raise error.TestFail("Can't find ipbtable rule:\n%s" % ipt)
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
if not get_ip_func():
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Can't find ip address on guest")
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ip_gateway = net_ipv6_address
# Cleanup ip6talbes on host for ping6 test
utils.run("ip6tables -F")
if ip_gateway and not routes:
ping_s, _ = ping(dest=ip_gateway, count=5,
timeout=10, session=session)
if ping_s:
raise error.TestFail("Failed to ping gateway address: %s"
% ip_gateway)
def run_guest_libvirt(session):
"""
Check guest libvirt network
"""
# Try to install required packages
if not utils_misc.yum_install(['libvirt'], session):
raise error.TestError("Failed ot install libvirt"
" package on guest")
result = True
# Try to load tun module first
session.cmd("lsmod | grep tun || modprobe tun")
# Check network state on guest
cmd = ("service libvirtd restart; virsh net-info default"
" | grep 'Active:.*no'")
if session.cmd_status(cmd):
result = False
logging.error("Default network isn't in inactive state")
# Try to start default network on guest, check error messages
if result:
cmd = "virsh net-start default"
status, output = session.cmd_status_output(cmd)
logging.debug("Run command on guest exit %s, output %s"
% (status, output))
if not status or not output.count("already in use"):
result = False
logging.error("Failed to see network messges on guest")
if session.cmd_status("yum -y remove libvirt*"):
logging.error("Failed to remove libvirt packages on guest")
if not result:
raise error.TestFail("Check libvirt network on guest failed")
start_error = "yes" == params.get("start_error", "no")
define_error = "yes" == params.get("define_error", "no")
restart_error = "yes" == params.get("restart_error", "no")
# network specific attributes.
net_name = params.get("net_name", "default")
net_bridge = params.get("net_bridge", "{'name':'virbr0'}")
net_domain = params.get("net_domain")
net_ip_address = params.get("net_ip_address")
net_ipv6_address = params.get("net_ipv6_address")
net_dns_forward = params.get("net_dns_forward")
net_dns_txt = params.get("net_dns_txt")
net_dns_srv = params.get("net_dns_srv")
net_dns_hostip = params.get("net_dns_hostip")
net_dns_hostnames = params.get("net_dns_hostnames", "").split()
dhcp_start_ipv4 = params.get("dhcp_start_ipv4")
dhcp_end_ipv4 = params.get("dhcp_end_ipv4")
guest_name = params.get("guest_name")
guest_ipv4 = params.get("guest_ipv4")
guest_ipv6 = params.get("guest_ipv6")
tftp_root = params.get("tftp_root")
pxe_boot = "yes" == params.get("pxe_boot", "no")
routes = params.get("routes", "").split()
net_bandwidth_inbound = params.get("net_bandwidth_inbound", "{}")
net_bandwidth_outbound = params.get("net_bandwidth_outbound", "{}")
iface_bandwidth_inbound = params.get("iface_bandwidth_inbound", "{}")
iface_bandwidth_outbound = params.get("iface_bandwidth_outbound", "{}")
iface_num = params.get("iface_num", "1")
iface_source = params.get("iface_source", "{}")
multiple_guests = params.get("multiple_guests")
create_network = "yes" == params.get("create_network", "no")
attach_iface = "yes" == params.get("attach_iface", "no")
serial_login = "******" == params.get("serial_login", "no")
change_iface_option = "yes" == params.get("change_iface_option", "no")
test_bridge = "yes" == params.get("test_bridge", "no")
test_dnsmasq = "yes" == params.get("test_dnsmasq", "no")
test_dhcp_range = "yes" == params.get("test_dhcp_range", "no")
test_dns_host = "yes" == params.get("test_dns_host", "no")
test_qos_bandwidth = "yes" == params.get("test_qos_bandwidth", "no")
test_pg_bandwidth = "yes" == params.get("test_portgroup_bandwidth", "no")
test_qos_remove = "yes" == params.get("test_qos_remove", "no")
test_ipv4_address = "yes" == params.get("test_ipv4_address", "no")
test_ipv6_address = "yes" == params.get("test_ipv6_address", "no")
test_guest_libvirt = "yes" == params.get("test_guest_libvirt", "no")
username = params.get("username")
password = params.get("password")
# Destroy VM first
if vm.is_alive():
vm.destroy(gracefully=False)
# Back up xml file.
netxml_backup = NetworkXML.new_from_net_dumpxml("default")
iface_mac = vm_xml.VMXML.get_first_mac_by_name(vm_name)
params["guest_mac"] = iface_mac
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vms_list = []
if "floor" in ast.literal_eval(iface_bandwidth_inbound):
if not libvirt_version.version_compare(1, 0, 1):
raise error.TestNAError("Not supported Qos"
" options 'floor'")
# Build the xml and run test.
try:
if test_dnsmasq:
# Check the settings before modifying network xml
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed", exists=False)
run_dnsmasq_default_test("local", "//", exists=False)
if net_domain:
run_dnsmasq_default_test("domain", net_domain, exists=False)
run_dnsmasq_default_test("expand-hosts", exists=False)
# Prepare pxe boot directory
if pxe_boot:
prepare_pxe_boot()
# Edit the network xml or create a new one.
if create_network:
net_ifs = utils_net.get_net_if(state="UP")
# Check forward device is valid or not,
# if it's not in host interface list, try to set
# forward device to first active interface of host
forward = ast.literal_eval(params.get("net_forward",
"{}"))
if (forward.has_key('mode') and forward['mode'] in
['passthrough', 'private', 'bridge', 'macvtap'] and
forward.has_key('dev') and
forward['dev'] not in net_ifs):
logging.warn("Forward device %s is not a interface"
" of host, reset to %s",
forward['dev'], net_ifs[0])
forward['dev'] = net_ifs[0]
params["net_forward"] = str(forward)
forward_iface = params.get("forward_iface")
if forward_iface:
interface = [x for x in forward_iface.split()]
# The guest will use first interface of the list,
# check if it's valid or not, if it's not in host
# interface list, try to set forward interface to
# first active interface of host.
if interface[0] not in net_ifs:
logging.warn("Forward interface %s is not a "
" interface of host, reset to %s",
interface[0], net_ifs[0])
interface[0] = net_ifs[0]
params["forward_iface"] = " ".join(interface)
netxml = libvirt.create_net_xml(net_name, params)
try:
netxml.sync()
except xcepts.LibvirtXMLError, details:
logging.info(str(details))
if define_error:
pass
else:
raise error.TestFail("Failed to define network")
# Edit the interface xml.
if change_iface_option:
modify_iface_xml()
# Attach interface if needed
if attach_iface:
iface_type = params.get("iface_type", "network")
iface_model = params.get("iface_model", "virtio")
for i in range(int(iface_num)):
logging.info("Try to attach interface loop %s" % i)
options = ("%s %s --model %s --config" %
(iface_type, net_name, iface_model))
ret = virsh.attach_interface(vm_name, options,
ignore_status=True)
if ret.exit_status:
logging.error("Command output %s" %
ret.stdout.strip())
raise error.TestFail("Failed to attach-interface")
if multiple_guests:
# Clone more vms for testing
for i in range(int(multiple_guests)):
guest_name = "%s_%s" % (vm_name, i)
timeout = params.get("clone_timeout", 360)
utils_libguestfs.virt_clone_cmd(vm_name, guest_name,
True, timeout=timeout)
vms_list.append(vm.clone(guest_name))
if test_bridge:
bridge = ast.literal_eval(net_bridge)
br_if = utils_net.Interface(bridge['name'])
if not br_if.is_up():
raise error.TestFail("Bridge interface isn't up")
if test_dnsmasq:
# Check the settings in dnsmasq config file
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed")
run_dnsmasq_default_test("local", "//")
if net_domain:
run_dnsmasq_default_test("domain", net_domain)
run_dnsmasq_default_test("expand-hosts")
if net_bridge:
bridge = ast.literal_eval(net_bridge)
run_dnsmasq_default_test("interface", bridge['name'])
if bridge.has_key('stp') and bridge['stp'] == 'on':
if bridge.has_key('delay'):
br_delay = float(bridge['delay'])
cmd = ("brctl showstp %s | grep 'bridge forward delay'"
% bridge['name'])
out = utils.run(cmd, ignore_status=False).stdout.strip()
logging.debug("brctl showstp output: %s", out)
pattern = (r"\s*forward delay\s+(\d+.\d+)\s+bridge"
" forward delay\s+(\d+.\d+)")
match_obj = re.search(pattern, out, re.M)
if not match_obj or len(match_obj.groups()) != 2:
raise error.TestFail("Can't see forward delay"
" messages from command")
elif (float(match_obj.groups()[0]) != br_delay or
float(match_obj.groups()[1]) != br_delay):
raise error.TestFail("Foward delay setting"
" can't take effect")
if dhcp_start_ipv4 and dhcp_end_ipv4:
run_dnsmasq_default_test("dhcp-range", "%s,%s"
% (dhcp_start_ipv4, dhcp_end_ipv4))
if guest_name and guest_ipv4:
run_dnsmasq_host_test(iface_mac, guest_ipv4, guest_name)
if test_dns_host:
if net_dns_txt:
dns_txt = ast.literal_eval(net_dns_txt)
run_dnsmasq_default_test("txt-record", "%s,%s" %
(dns_txt["name"],
dns_txt["value"]))
if net_dns_srv:
dns_srv = ast.literal_eval(net_dns_srv)
run_dnsmasq_default_test("srv-host", "_%s._%s.%s,%s,%s,%s,%s" %
(dns_srv["service"], dns_srv["protocol"],
dns_srv["domain"], dns_srv["target"],
dns_srv["port"], dns_srv["priority"],
dns_srv["weight"]))
if net_dns_hostip and net_dns_hostnames:
run_dnsmasq_addnhosts_test(net_dns_hostip, net_dns_hostnames)
# Run bandwidth test for network
if test_qos_bandwidth:
run_bandwidth_test(check_net=True)
# Check routes if needed
if routes:
check_host_routes()
try:
# Start the VM.
vm.start()
if start_error:
raise error.TestFail("VM started unexpectedly")
if pxe_boot:
# Just check network boot messages here
vm.serial_console.read_until_output_matches(
["Loading vmlinuz", "Loading initrd.img"],
utils_misc.strip_console_codes)
output = vm.serial_console.get_stripped_output()
logging.debug("Boot messages: %s", output)
else:
if serial_login:
session = vm.wait_for_serial_login(username=username,
password=password)
else:
session = vm.wait_for_login()
if test_dhcp_range:
dhcp_range = int(params.get("dhcp_range", "252"))
utils_net.restart_guest_network(session, iface_mac)
vm_ip = utils_net.get_guest_ip_addr(session, iface_mac)
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip and dhcp_range:
raise error.TestFail("Guest has invalid ip address")
elif vm_ip and not dhcp_range:
raise error.TestFail("Guest has ip address: %s"
% vm_ip)
dhcp_range = dhcp_range - 1
for vms in vms_list:
# Start other VMs.
vms.start()
sess = vms.wait_for_serial_login()
vms_mac = vms.get_virsh_mac_address()
# restart guest network to get ip addr
utils_net.restart_guest_network(sess, vms_mac)
vms_ip = utils_net.get_guest_ip_addr(sess,
vms_mac)
if not vms_ip and dhcp_range:
raise error.TestFail("Guest has invalid ip address")
elif vms_ip and not dhcp_range:
# Get IP address on guest should return Null
# if it exceeds the dhcp range
raise error.TestFail("Guest has ip address: %s"
% vms_ip)
dhcp_range = dhcp_range - 1
if vms_ip:
ping_s, _ = ping(dest=vm_ip, count=5,
timeout=10, session=sess)
if ping_s:
raise error.TestFail("Failed to ping, src: %s, "
"dst: %s" % (vms_ip, vm_ip))
sess.close()
# Check dnsmasq settings if take affect in guest
if guest_ipv4:
check_name_ip(session)
# Run bandwidth test for interface
if test_qos_bandwidth:
run_bandwidth_test(check_iface=True)
# Run bandwidth test for portgroup
if test_pg_bandwidth:
pg_bandwidth_inbound = params.get(
"portgroup_bandwidth_inbound", "").split()
pg_bandwidth_outbound = params.get(
"portgroup_bandwidth_outbound", "").split()
pg_name = params.get("portgroup_name", "").split()
pg_default = params.get("portgroup_default", "").split()
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
if_source = ast.literal_eval(iface_source)
if if_source.has_key("portgroup"):
pg = if_source["portgroup"]
else:
pg = "default"
for (name, df, bw_ib, bw_ob) in zip(pg_name, pg_default,
pg_bandwidth_inbound,
pg_bandwidth_outbound):
if pg == name:
inbound = ast.literal_eval(bw_ib)
outbound = ast.literal_eval(bw_ob)
elif pg == "default" and df == "yes":
inbound = ast.literal_eval(bw_ib)
outbound = ast.literal_eval(bw_ob)
else:
continue
# Interface bandwidth settings will
# overwriting portgroup settings
if iface_inbound:
inbound = iface_inbound
if iface_outbound:
outbound = iface_outbound
check_class_rules(iface_name, "1:1", inbound)
check_filter_rules(iface_name, outbound)
if test_qos_remove:
# Remove the bandwidth settings in network xml
logging.debug("Removing network bandwidth settings...")
netxml_backup.sync()
vm.destroy(gracefully=False)
# Should fail to start vm
vm.start()
if restart_error:
raise error.TestFail("VM started unexpectedly")
if test_ipv6_address:
check_ipt_rules(check_ipv6=True)
run_ip_test(session, "ipv6")
if test_ipv4_address:
check_ipt_rules(check_ipv4=True)
run_ip_test(session, "ipv4")
if test_guest_libvirt:
run_guest_libvirt(session)
session.close()
except virt_vm.VMStartError, details:
logging.info(str(details))
if start_error or restart_error:
pass
else:
raise error.TestFail('VM Failed to start for some reason!')
def run(test, params, env):
"""
KVM migration test:
1) Get a live VM and clone it.
2) Verify that the source VM supports migration. If it does, proceed with
the test.
3) Hotplug a nic.
4) Disable the primary link of guest.
5) Check if new interface gets ip address.
6) Ping guest's new ip from host.
7) Re-enabling the primary link.
8) Send a migration command to the source VM and wait until it's finished.
9) Disable the primary link again.
10) Ping guest's new ip from host.
11) Re-enabling the primary link.
:param test: kvm test object.
:param params: Dictionary with test parameters.
:param env: Dictionary with the test environment.
"""
def set_link(nic_name, up=False):
for nic in vm.virtnet:
if nic.nic_name != nic_name:
vm.set_link(nic.device_id, up=up)
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)
guest_is_not_windows = (params.get("os_type") != 'windows')
run_dhclient = params.get("run_dhclient", "no")
mig_timeout = float(params.get("mig_timeout", "3600"))
nettype = params.get("nettype", "bridge")
netdst = params.get("netdst", "virbr0")
mig_protocol = params.get("migration_protocol", "tcp")
mig_cancel_delay = int(params.get("mig_cancel") == "yes") * 2
pci_model = params.get("pci_model")
# Modprobe the module if specified in config file
module = params.get("modprobe_module")
if guest_is_not_windows and module:
session_serial.cmd("modprobe %s" % module)
if session_serial:
session_serial.close()
error.context("Add network devices through monitor cmd", logging.info)
nic_name = 'hotadded'
enable_msix_vectors = params.get("enable_msix_vectors")
nic_info = vm.hotplug_nic(nic_model=pci_model,
nic_name=nic_name,
netdst=netdst,
nettype=nettype,
queues=params.get('queues'),
enable_msix_vectors=enable_msix_vectors)
nic_mac = nic_info['mac']
vm.params['nics'] += " %s" % nic_name
vm.params['nic_model_%s' % nic_name] = nic_info['nic_model']
# Only run dhclient if explicitly set and guest is not running Windows.
# Most modern Linux guests run NetworkManager, and thus do not need this.
if run_dhclient == "yes" and guest_is_not_windows:
session_serial = vm.wait_for_serial_login(timeout=timeout)
ifname = utils_net.get_linux_ifname(session_serial, nic_mac)
utils_net.restart_guest_network(session_serial, ifname)
# Guest need to take quite a long time to set the ip addr, sleep a
# while to wait for guest done.
time.sleep(60)
error.context("Disable the primary link of guest", logging.info)
set_link(nic_name, up=False)
error.context("Check if new interface gets ip address", logging.info)
try:
ip = vm.wait_for_get_address(nic_name)
except virt_vm.VMIPAddressMissingError:
raise error.TestFail("Could not get or verify ip address of nic")
logging.info("Got the ip address of new nic: %s", ip)
error.context("Ping guest's new ip from host", logging.info)
s, o = utils_test.ping(ip, 10, timeout=15)
if s != 0:
raise error.TestFail("New nic failed ping test with output:\n %s" % o)
error.context("Re-enabling the primary link", logging.info)
set_link(nic_name, up=True)
error.context("Migrate from source VM to Destination VM", logging.info)
vm.migrate(mig_timeout, mig_protocol, mig_cancel_delay, env=env)
error.context("Disable the primary link", logging.info)
set_link(nic_name, up=False)
error.context("Ping guest's new ip from host", logging.info)
s, o = utils_test.ping(ip, 10, timeout=15)
if s != 0:
raise error.TestFail("New nic failed ping test with output:\n %s" % o)
error.context("Re-enabling the primary link", logging.info)
set_link(nic_name, up=True)
error.context("Reboot guest and verify new nic works", logging.info)
host_ip = utils_net.get_ip_address_by_interface(netdst)
session = vm.reboot()
status, output = utils_test.ping(dest=host_ip,
count=100,
timeout=240,
session=session)
if status != 0:
raise error.TestFail("Fail to ping host form guest")
def run(test, params, env):
"""
Test migration with special network settings
1) migrate guest with bridge type interface connected to ovs bridge
2) migrate guest with direct type interface when a macvtap device name
exists on dest host
:param test: test object
:param params: Dictionary with the test parameters
:param env: Dictionary with test environment.
"""
def check_vm_network_accessed(ping_dest, session=None):
"""
The operations to the VM need to be done before or after
migration happens
:param ping_dest: The destination to be ping
:param session: The session object to the host
:raise: test.fail when ping fails
"""
# Confirm local/remote VM can be accessed through network.
logging.info("Check VM network connectivity")
status, output = utils_net.ping(ping_dest,
count=10,
timeout=20,
output_func=logging.debug,
session=session)
if status != 0:
test.fail("Ping failed, status: %s, output: %s" % (status, output))
def vm_sync(vmxml, vm_name=None, virsh_instance=virsh):
"""
A wrapper to sync vm xml on localhost and remote host
:param vmxml: domain VMXML instance
:param vm_name: The name of VM
:param virsh_instance: virsh instance object
"""
if vm_name and virsh_instance != virsh:
remote.scp_to_remote(server_ip, '22', server_user,
server_pwd,
vmxml.xml, vmxml.xml)
if virsh_instance.domain_exists(vm_name):
if virsh_instance.is_alive(vm_name):
virsh_instance.destroy(vm_name, ignore_status=True)
virsh_instance.undefine(vmxml.xml, ignore_status=True)
virsh_instance.define(vmxml.xml, debug=True)
else:
vmxml.sync()
def update_iface_xml(vm_name, iface_dict, virsh_instance=virsh):
"""
Update interfaces for guest
:param vm_name: The name of VM
:param iface_dict: The interface configurations params
:param virsh_instance: virsh instance object
"""
logging.debug("update iface xml")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(
vm_name, virsh_instance=virsh_instance)
vmxml.remove_all_device_by_type('interface')
vm_sync(vmxml, vm_name, virsh_instance=virsh_instance)
iface = interface.Interface('network')
iface.xml = libvirt.modify_vm_iface(vm_name, "get_xml", iface_dict,
virsh_instance=virsh_instance)
vmxml.add_device(iface)
vmxml.xmltreefile.write()
vm_sync(vmxml, vm_name, virsh_instance=virsh_instance)
logging.debug("VM XML after updating interface: %s" % vmxml)
def update_net_dict(net_dict, runner=utils_net.local_runner):
"""
Update network dict
:param net_dict: The network dict to be updated
:param runner: Command runner
:return: Updated network dict
"""
if net_dict.get("net_name", "") == "direct-macvtap":
logging.info("Updating network iface name")
iface_name = utils_net.get_net_if(runner=runner, state="UP")[0]
net_dict.update({"forward_iface": iface_name})
else:
# TODO: support other types
logging.info("No need to update net_dict. We only support to "
"update direct-macvtap type for now.")
logging.debug("net_dict is %s" % net_dict)
return net_dict
def get_remote_direct_mode_vm_mac(vm_name, uri):
"""
Get mac of remote direct mode VM
:param vm_name: The name of VM
:param uri: The uri on destination
:return: mac
:raise: test.fail when the result of virsh domiflist is incorrect
"""
vm_mac = None
res = virsh.domiflist(
vm_name, uri=uri, ignore_status=False).stdout_text.strip().split("\n")
if len(res) < 2:
test.fail("Unable to get remote VM's mac: %s" % res)
else:
vm_mac = res[-1].split()[-1]
return vm_mac
def create_fake_tap(remote_session):
"""
Create a fake macvtap on destination host.
:param remote_session: The session to the destination host.
:return: The new tap device
"""
tap_cmd = "ls /dev/tap* |awk -F 'tap' '{print $NF}'"
tap_idx = remote_session.cmd_output(tap_cmd).strip()
if not tap_idx:
test.fail("Unable to get tap index using %s."
% tap_cmd)
fake_tap_dest = 'tap'+str(int(tap_idx)+1)
logging.debug("creating a fake tap %s...", fake_tap_dest)
cmd = "touch /dev/%s" % fake_tap_dest
remote_session.cmd(cmd)
return fake_tap_dest
migration_test = migration.MigrationTest()
migration_test.check_parameters(params)
libvirt_version.is_libvirt_feature_supported(params)
# Params to update disk using shared storage
params["disk_type"] = "file"
params["disk_source_protocol"] = "netfs"
params["mnt_path_name"] = params.get("nfs_mount_dir")
# Local variables
virsh_args = {"debug": True}
server_ip = params.get("server_ip")
server_user = params.get("server_user", "root")
server_pwd = params.get("server_pwd")
client_ip = params.get("client_ip")
client_pwd = params.get("client_pwd")
virsh_options = params.get("virsh_options", "")
extra = params.get("virsh_migrate_extra")
options = params.get("virsh_migrate_options", "--live --p2p --verbose")
restart_dhclient = params.get("restart_dhclient", "dhclient -r; dhclient")
ping_dest = params.get("ping_dest", "www.baidu.com")
extra_args = migration_test.update_virsh_migrate_extra_args(params)
migrate_vm_back = "yes" == params.get("migrate_vm_back", "no")
target_vm_name = params.get("target_vm_name")
direct_mode = "yes" == params.get("direct_mode", "no")
check_macvtap_exists = "yes" == params.get("check_macvtap_exists", "no")
create_fake_tap_dest = "yes" == params.get("create_fake_tap_dest", "no")
macvtap_cmd = params.get("macvtap_cmd")
modify_target_vm = "yes" == params.get("modify_target_vm", "no")
ovs_bridge_name = params.get("ovs_bridge_name")
network_dict = eval(params.get("network_dict", '{}'))
iface_dict = eval(params.get("iface_dict", '{}'))
remote_virsh_dargs = {'remote_ip': server_ip, 'remote_user': server_user,
'remote_pwd': server_pwd, 'unprivileged_user': None,
'ssh_remote_auth': True}
cmd_parms = {'server_ip': server_ip, 'server_user': server_user,
'server_pwd': server_pwd}
virsh_session_remote = None
libvirtd_conf = None
mig_result = None
target_org_xml = None
target_vm_session = None
target_vm = None
exp_macvtap = []
fake_tap_dest = None
# params for migration connection
params["virsh_migrate_desturi"] = libvirt_vm.complete_uri(
params.get("migrate_dest_host"))
params["virsh_migrate_connect_uri"] = libvirt_vm.complete_uri(
params.get("migrate_source_host"))
src_uri = params.get("virsh_migrate_connect_uri")
dest_uri = params.get("virsh_migrate_desturi")
vm_name = params.get("migrate_main_vm")
vm = env.get_vm(vm_name)
vm.verify_alive()
bk_uri = vm.connect_uri
postcopy_options = params.get("postcopy_options")
action_during_mig = None
if postcopy_options:
extra = "%s %s" % (extra, postcopy_options)
action_during_mig = virsh.migrate_postcopy
# For safety reasons, we'd better back up xmlfile.
new_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = new_xml.copy()
try:
# Create a remote runner for later use
runner_on_target = remote.RemoteRunner(host=server_ip,
username=server_user,
password=server_pwd)
remote_session = remote.remote_login("ssh", server_ip, "22",
server_user, server_pwd,
r'[$#%]')
virsh_session_remote = virsh.VirshPersistent(**remote_virsh_dargs)
if target_vm_name:
target_vm = libvirt_vm.VM(target_vm_name, params, vm.root_dir,
vm.address_cache)
target_vm.connect_uri = dest_uri
if not virsh_session_remote.domain_exists(target_vm_name):
test.error("VM %s should be installed on %s."
% (target_vm_name, server_ip))
# Backup guest's xml on remote
target_org_xml = vm_xml.VMXML.new_from_inactive_dumpxml(
target_vm_name, virsh_instance=virsh_session_remote)
# Scp original xml to remote for restoration
remote.scp_to_remote(server_ip, '22', server_user,
server_pwd,
target_org_xml.xml, target_org_xml.xml)
logging.debug("target xml is %s" % target_org_xml)
if ovs_bridge_name:
status, stdout = utils_net.create_ovs_bridge(ovs_bridge_name)
if status:
test.fail("Failed to create ovs bridge on local. Status: %s"
"Stdout: %s" % (status, stdout))
status, stdout = utils_net.create_ovs_bridge(
ovs_bridge_name, session=remote_session)
if status:
test.fail("Failed to create ovs bridge on remote. Status: %s"
"Stdout: %s" % (status, stdout))
if network_dict:
update_net_dict(network_dict, runner=remote_session.cmd)
libvirt_network.create_or_del_network(
network_dict, remote_args=remote_virsh_dargs)
logging.info("dest: network created")
update_net_dict(network_dict)
libvirt_network.create_or_del_network(network_dict)
logging.info("localhost: network created")
if target_vm_name:
if modify_target_vm and iface_dict:
logging.info("Updating remote VM's interface")
update_iface_xml(target_vm_name, iface_dict,
virsh_instance=virsh_session_remote)
target_vm.start()
target_vm_session = target_vm.wait_for_serial_login(timeout=240)
check_vm_network_accessed(ping_dest, session=target_vm_session)
if check_macvtap_exists and macvtap_cmd:
# Get macvtap device's index on remote after target_vm started
idx = remote_session.cmd_output(macvtap_cmd).strip()
if not idx:
test.fail("Unable to get macvtap index using %s."
% macvtap_cmd)
# Generate the expected macvtap devices' index list
exp_macvtap = ['macvtap'+idx, 'macvtap'+str(int(idx)+1)]
if create_fake_tap_dest:
fake_tap_dest = create_fake_tap(remote_session)
remote_session.close()
# Change domain network xml
if iface_dict:
if "mac" not in iface_dict:
mac = utils_net.generate_mac_address_simple()
iface_dict.update({'mac': mac})
else:
mac = iface_dict["mac"]
update_iface_xml(vm_name, iface_dict)
# Change the disk of the vm
libvirt.set_vm_disk(vm, params)
if not vm.is_alive():
try:
vm.start()
except virt_vm.VMStartError as err:
test.fail("Failed to start VM: %s" % err)
logging.debug("Guest xml after starting:\n%s",
vm_xml.VMXML.new_from_dumpxml(vm_name))
# Check local guest network connection before migration
if vm.serial_console is not None:
vm.cleanup_serial_console()
vm.create_serial_console()
vm_session = vm.wait_for_serial_login(timeout=240)
if not utils_package.package_install('dhcp-client', session=vm_session):
test.error("Failed to install dhcp-client on guest.")
utils_net.restart_guest_network(vm_session)
vm_ip = utils_net.get_guest_ip_addr(vm_session, mac)
logging.debug("VM IP Addr: %s", vm_ip)
if direct_mode:
check_vm_network_accessed(ping_dest, session=vm_session)
else:
check_vm_network_accessed(vm_ip)
# Execute migration process
vms = [vm]
migration_test.do_migration(vms, None, dest_uri, 'orderly',
options, thread_timeout=900,
ignore_status=True, virsh_opt=virsh_options,
func=action_during_mig,
extra_opts=extra,
**extra_args)
mig_result = migration_test.ret
# Check network accessibility after migration
if int(mig_result.exit_status) == 0:
vm.connect_uri = dest_uri
if vm.serial_console is not None:
vm.cleanup_serial_console()
vm.create_serial_console()
vm_session_after_mig = vm.wait_for_serial_login(timeout=240)
vm_session_after_mig.cmd(restart_dhclient)
check_vm_network_accessed(ping_dest, session=vm_session_after_mig)
if check_macvtap_exists and macvtap_cmd:
remote_session = remote.remote_login("ssh", server_ip, "22",
server_user, server_pwd,
r'[$#%]')
# Check macvtap devices' index after migration
idx = remote_session.cmd_output(macvtap_cmd)
act_macvtap = ['macvtap'+i for i in idx.strip().split("\n")]
if act_macvtap != exp_macvtap:
test.fail("macvtap devices after migration are incorrect!"
" Actual: %s, Expected: %s. "
% (act_macvtap, exp_macvtap))
else:
if fake_tap_dest:
res = remote.run_remote_cmd("ls /dev/%s" % fake_tap_dest,
params, runner_on_target)
libvirt.check_exit_status(res)
if target_vm_session:
check_vm_network_accessed(ping_dest, session=target_vm_session)
# Execute migration from remote
if migrate_vm_back:
ssh_connection = utils_conn.SSHConnection(server_ip=client_ip,
server_pwd=client_pwd,
client_ip=server_ip,
client_pwd=server_pwd)
try:
ssh_connection.conn_check()
except utils_conn.ConnectionError:
ssh_connection.conn_setup()
ssh_connection.conn_check()
# Pre migration setup for local machine
migration_test.migrate_pre_setup(src_uri, params)
cmd = "virsh migrate %s %s %s" % (vm_name, options, src_uri)
logging.debug("Start migration: %s", cmd)
cmd_result = remote.run_remote_cmd(cmd, params, runner_on_target)
logging.info(cmd_result)
if cmd_result.exit_status:
test.fail("Failed to run '%s' on remote: %s" % (cmd, cmd_result))
logging.debug("VM is migrated back.")
vm.connect_uri = bk_uri
if vm.serial_console is not None:
vm.cleanup_serial_console()
vm.create_serial_console()
vm_session_after_mig_bak = vm.wait_for_serial_login(timeout=240)
vm_session_after_mig_bak.cmd(restart_dhclient)
check_vm_network_accessed(ping_dest, vm_session_after_mig_bak)
finally:
logging.debug("Recover test environment")
vm.connect_uri = bk_uri
migration_test.cleanup_vm(vm, dest_uri)
logging.info("Recovery VM XML configration")
orig_config_xml.sync()
remote_session = remote.remote_login("ssh", server_ip, "22",
server_user, server_pwd,
r'[$#%]')
if target_vm and target_vm.is_alive():
target_vm.destroy(gracefully=False)
if target_org_xml and target_vm_name:
logging.info("Recovery XML configration for %s.", target_vm_name)
virsh_session_remote = virsh.VirshPersistent(**remote_virsh_dargs)
vm_sync(target_org_xml, vm_name=target_vm_name,
virsh_instance=virsh_session_remote)
virsh_session_remote.close_session()
if fake_tap_dest:
remote_session.cmd_output_safe("rm -rf /dev/%s" % fake_tap_dest)
if network_dict:
libvirt_network.create_or_del_network(
network_dict, is_del=True, remote_args=remote_virsh_dargs)
libvirt_network.create_or_del_network(network_dict, is_del=True)
if ovs_bridge_name:
utils_net.delete_ovs_bridge(ovs_bridge_name)
utils_net.delete_ovs_bridge(ovs_bridge_name, session=remote_session)
remote_session.close()
if target_vm_session:
target_vm_session.close()
if virsh_session_remote:
virsh_session_remote.close_session()
if migrate_vm_back:
if 'ssh_connection' in locals():
ssh_connection.auto_recover = True
migration_test.migrate_pre_setup(src_uri, params,
cleanup=True)
logging.info("Remove local NFS image")
source_file = params.get("source_file")
if source_file:
libvirt.delete_local_disk("file", path=source_file)
def run(test, params, env):
"""
KVM migration test:
1) Get a live VM and clone it.
2) Verify that the source VM supports migration. If it does, proceed with
the test.
3) Hotplug a nic.
4) Disable the primary link of guest.
5) Check if new interface gets ip address.
6) Ping guest's new ip from host.
7) Re-enabling the primary link.
8) Send a migration command to the source VM and wait until it's finished.
9) Disable the primary link again.
10) Ping guest's new ip from host.
11) Re-enabling the primary link.
:param test: kvm test object.
:param params: Dictionary with test parameters.
:param env: Dictionary with the test environment.
"""
def set_link(nic_name, up=False):
for nic in vm.virtnet:
if nic.nic_name != nic_name:
vm.set_link(nic.device_id, up=up)
vm = env.get_vm(params["main_vm"])
vm.verify_alive()
timeout = int(params.get("login_timeout", 360))
session = vm.wait_for_serial_login(timeout=timeout)
guest_is_not_windows = (params.get("os_type") != 'windows')
run_dhclient = params.get("run_dhclient", "no")
mig_timeout = float(params.get("mig_timeout", "3600"))
nettype = params.get("nettype", "bridge")
netdst = params.get("netdst", "virbr0")
mig_protocol = params.get("migration_protocol", "tcp")
mig_cancel_delay = int(params.get("mig_cancel") == "yes") * 2
pci_model = params.get("pci_model")
# Modprobe the module if specified in config file
module = params.get("modprobe_module")
if guest_is_not_windows and module:
session.cmd_output("modprobe %s" % module)
if session:
session.close()
error.context("Add network devices through monitor cmd", logging.info)
nic_name = 'hotadded'
enable_msix_vectors = params.get("enable_msix_vectors")
nic_info = vm.hotplug_nic(nic_model=pci_model, nic_name=nic_name,
netdst=netdst, nettype=nettype,
queues=params.get('queues'),
enable_msix_vectors=enable_msix_vectors)
nic_mac = nic_info['mac']
vm.params['nics'] += " %s" % nic_name
vm.params['nic_model_%s' % nic_name] = nic_info['nic_model']
# Only run dhclient if explicitly set and guest is not running Windows.
# Most modern Linux guests run NetworkManager, and thus do not need this.
if run_dhclient == "yes" and guest_is_not_windows:
session_serial = vm.wait_for_serial_login(timeout=timeout)
ifname = utils_net.get_linux_ifname(session, nic_mac)
utils_net.restart_guest_network(session_serial, ifname)
# Guest need to take quite a long time to set the ip addr, sleep a
# while to wait for guest done.
time.sleep(60)
error.context("Disable the primary link of guest", logging.info)
set_link(nic_name, up=False)
error.context("Check if new interface gets ip address", logging.info)
try:
ip = vm.wait_for_get_address(nic_name)
except virt_vm.VMIPAddressMissingError:
raise error.TestFail("Could not get or verify ip address of nic")
logging.info("Got the ip address of new nic: %s", ip)
error.context("Ping guest's new ip from host", logging.info)
s, o = utils_test.ping(ip, 10, timeout=15)
if s != 0:
raise error.TestFail("New nic failed ping test with output:\n %s" % o)
error.context("Re-enabling the primary link", logging.info)
set_link(nic_name, up=True)
error.context("Migrate from source VM to Destination VM", logging.info)
vm.migrate(mig_timeout, mig_protocol, mig_cancel_delay, env=env)
error.context("Disable the primary link", logging.info)
set_link(nic_name, up=False)
error.context("Ping guest's new ip from host", logging.info)
s, o = utils_test.ping(ip, 10, timeout=15)
if s != 0:
raise error.TestFail("New nic failed ping test with output:\n %s" % o)
error.context("Re-enabling the primary link", logging.info)
set_link(nic_name, up=True)
error.context("Reboot guest and verify new nic works", logging.info)
host_ip = utils_net.get_ip_address_by_interface(netdst)
session = vm.reboot(session=session)
status, output = utils_test.ping(dest=host_ip, count=100,
timeout=240, session=session)
if status != 0:
raise error.TestFail("Fail to ping host form guest")
def run(test, params, env):
"""
Test migration with special network settings
1) migrate guest with bridge type interface connected to ovs bridge
:param test: test object
:param params: Dictionary with the test parameters
:param env: Dictionary with test environment.
"""
def check_vm_network_accessed(ping_dest, session=None):
"""
The operations to the VM need to be done before or after
migration happens
:param ping_dest: The destination to be ping
:param session: The session object to the host
:raise: test.fail when ping fails
"""
# Confirm local/remote VM can be accessed through network.
logging.info("Check VM network connectivity")
status, output = utils_net.ping(ping_dest,
count=10,
timeout=20,
output_func=logging.debug,
session=session)
if status != 0:
test.fail("Ping failed, status: %s, output: %s" % (status, output))
def update_iface_xml(vm_name, iface_dict):
"""
Update interfaces for guest
:param vm_name: The name of VM
:param iface_dict: The interface configurations params
"""
logging.debug("update iface xml")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml.remove_all_device_by_type('interface')
vmxml.sync()
iface = interface.Interface('network')
iface.xml = libvirt.modify_vm_iface(vm.name, "get_xml", iface_dict)
libvirt.add_vm_device(vmxml, iface)
migration_test = migration.MigrationTest()
migration_test.check_parameters(params)
# Params for NFS shared storage
shared_storage = params.get("migrate_shared_storage", "")
if shared_storage == "":
default_guest_asset = defaults.get_default_guest_os_info()['asset']
default_guest_asset = "%s.qcow2" % default_guest_asset
shared_storage = os.path.join(params.get("nfs_mount_dir"),
default_guest_asset)
logging.debug("shared_storage:%s", shared_storage)
# Params to update disk using shared storage
params["disk_type"] = "file"
params["disk_source_protocol"] = "netfs"
params["mnt_path_name"] = params.get("nfs_mount_dir")
# Local variables
virsh_args = {"debug": True}
server_ip = params.get("server_ip")
server_user = params.get("server_user", "root")
server_pwd = params.get("server_pwd")
client_ip = params.get("client_ip")
client_pwd = params.get("client_pwd")
virsh_options = params.get("virsh_options", "")
extra = params.get("virsh_migrate_extra")
options = params.get("virsh_migrate_options", "--live --p2p --verbose")
func_params_exists = "yes" == params.get("func_params_exists", "no")
migr_vm_back = "yes" == params.get("migr_vm_back", "no")
ovs_bridge_name = params.get("ovs_bridge_name")
network_dict = eval(params.get("network_dict", '{}'))
iface_dict = eval(params.get("iface_dict", '{}'))
remote_virsh_dargs = {
'remote_ip': server_ip,
'remote_user': server_user,
'remote_pwd': server_pwd,
'unprivileged_user': None,
'ssh_remote_auth': True
}
func_name = None
libvirtd_conf = None
mig_result = None
# params for migration connection
params["virsh_migrate_desturi"] = libvirt_vm.complete_uri(
params.get("migrate_dest_host"))
params["virsh_migrate_connect_uri"] = libvirt_vm.complete_uri(
params.get("migrate_source_host"))
src_uri = params.get("virsh_migrate_connect_uri")
dest_uri = params.get("virsh_migrate_desturi")
vm_name = params.get("migrate_main_vm")
vm = env.get_vm(vm_name)
vm.verify_alive()
extra_args = {}
if func_params_exists:
extra_args.update({'func_params': params})
postcopy_options = params.get("postcopy_options")
if postcopy_options:
extra = "%s %s" % (extra, postcopy_options)
func_name = virsh.migrate_postcopy
# For safety reasons, we'd better back up xmlfile.
new_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = new_xml.copy()
try:
# Create a remote runner for later use
runner_on_target = remote.RemoteRunner(host=server_ip,
username=server_user,
password=server_pwd)
remote_session = remote.remote_login("ssh", server_ip, "22",
server_user, server_pwd, r'[$#%]')
if ovs_bridge_name:
status, stdout = utils_net.create_ovs_bridge(ovs_bridge_name)
if status:
test.fail("Failed to create ovs bridge on local. Status: %s"
"Stdout: %s" % (status, stdout))
status, stdout = utils_net.create_ovs_bridge(
ovs_bridge_name, session=remote_session)
if status:
test.fail("Failed to create ovs bridge on remote. Status: %s"
"Stdout: %s" % (status, stdout))
if network_dict:
libvirt_network.create_or_del_network(
network_dict, remote_args=remote_virsh_dargs)
libvirt_network.create_or_del_network(network_dict)
remote_session.close()
# Change domain network xml
if iface_dict:
if "mac" not in iface_dict:
mac = utils_net.generate_mac_address_simple()
iface_dict.update({'mac': mac})
else:
mac = iface_dict["mac"]
update_iface_xml(vm_name, iface_dict)
# Change the disk of the vm
libvirt.set_vm_disk(vm, params)
if not vm.is_alive():
try:
vm.start()
except virt_vm.VMStartError as err:
test.fail("Failed to start VM: %s" % err)
logging.debug("Guest xml after starting:\n%s",
vm_xml.VMXML.new_from_dumpxml(vm_name))
# Check local guest network connection before migration
if vm.serial_console is not None:
vm.cleanup_serial_console()
vm.create_serial_console()
vm_session = vm.wait_for_serial_login(timeout=240)
utils_net.restart_guest_network(vm_session)
vm_ip = utils_net.get_guest_ip_addr(vm_session, mac)
logging.debug("VM IP Addr: %s", vm_ip)
check_vm_network_accessed(vm_ip)
# Execute migration process
vms = [vm]
migration_test.do_migration(vms,
None,
dest_uri,
'orderly',
options,
thread_timeout=900,
ignore_status=True,
virsh_opt=virsh_options,
func=func_name,
extra_opts=extra,
**extra_args)
mig_result = migration_test.ret
migration_test.check_result(mig_result, params)
if int(mig_result.exit_status) == 0:
remote_session = remote.remote_login("ssh", server_ip, "22",
server_user, server_pwd,
r'[$#%]')
check_vm_network_accessed(vm_ip, session=remote_session)
remote_session.close()
# Execute migration from remote
if migr_vm_back:
ssh_connection = utils_conn.SSHConnection(server_ip=client_ip,
server_pwd=client_pwd,
client_ip=server_ip,
client_pwd=server_pwd)
try:
ssh_connection.conn_check()
except utils_conn.ConnectionError:
ssh_connection.conn_setup()
ssh_connection.conn_check()
# Pre migration setup for local machine
migration_test.migrate_pre_setup(src_uri, params)
cmd = "virsh migrate %s %s %s" % (vm_name, options, src_uri)
logging.debug("Start migration: %s", cmd)
cmd_result = remote.run_remote_cmd(cmd, params, runner_on_target)
logging.info(cmd_result)
if cmd_result.exit_status:
test.fail("Failed to run '%s' on remote: %s" %
(cmd, cmd_result))
logging.debug("VM is migrated back.")
check_vm_network_accessed(vm_ip)
finally:
logging.debug("Recover test environment")
# Clean VM on destination and source
try:
migration_test.cleanup_dest_vm(vm, vm.connect_uri, dest_uri)
except Exception as err:
logging.error(err)
if vm.is_alive():
vm.destroy(gracefully=False)
logging.info("Recovery VM XML configration")
orig_config_xml.sync()
remote_session = remote.remote_login("ssh", server_ip, "22",
server_user, server_pwd, r'[$#%]')
if network_dict:
libvirt_network.create_or_del_network(
network_dict, is_del=True, remote_args=remote_virsh_dargs)
libvirt_network.create_or_del_network(network_dict, is_del=True)
if ovs_bridge_name:
utils_net.delete_ovs_bridge(ovs_bridge_name)
utils_net.delete_ovs_bridge(ovs_bridge_name,
session=remote_session)
remote_session.close()
if migr_vm_back:
if 'ssh_connection' in locals():
ssh_connection.auto_recover = True
migration_test.migrate_pre_setup(src_uri, params, cleanup=True)
logging.info("Remove local NFS image")
source_file = params.get("source_file")
if source_file:
libvirt.delete_local_disk("file", path=source_file)
def run(test, params, env):
"""
Test virsh migrate command.
"""
def check_vm_network_accessed(session=None, ping_dest="www.baidu.com"):
"""
The operations to the VM need to be done before or after
migration happens
:param session: The session object to the host
:param ping_dest: The destination to be ping
:raise: test.fail when ping fails
"""
# Confirm local/remote VM can be accessed through network.
logging.info("Check VM network connectivity")
status, output = utils_test.ping(ping_dest,
count=10,
timeout=20,
output_func=logging.debug,
session=session)
if status != 0:
test.fail("Ping failed, status: %s,"
" output: %s" % (status, output))
def get_vm_ifaces(session=None):
"""
Get interfaces of vm
:param session: The session object to the host
:return: interfaces
"""
p_iface, v_iface = utils_net.get_remote_host_net_ifs(session)
return p_iface
def check_vm_iface_num(iface_list, exp_num=3):
"""
Check he number of interfaces
:param iface_list: The interface list
:param exp_num: The expected number
:raise: test.fail when interfaces' number is not equal to exp_num
"""
if len(iface_list) != exp_num:
test.fail("%d interfaces should be found on the vm, "
"but find %s." % (exp_num, iface_list))
def create_or_del_networks(pf_name, params, remote_virsh_session=None,
is_del=False):
"""
Create or delete network on local or remote
:param params: Dictionary with the test parameters
:param pf_name: The name of PF
:param remote_virsh_session: The virsh session object to the remote host
:param is_del: Whether the networks should be deleted
:raise: test.fail when fails to define/start network
"""
net_hostdev_name = params.get("net_hostdev_name", "hostdev-net")
net_hostdev_fwd = params.get("net_hostdev_fwd",
'{"mode": "hostdev", "managed": "yes"}')
net_bridge_name = params.get("net_bridge_name", "host-bridge")
net_bridge_fwd = params.get("net_bridge_fwd", '{"mode": "bridge"}')
bridge_name = params.get("bridge_name", "br0")
net_dict = {"net_name": net_hostdev_name,
"net_forward": net_hostdev_fwd,
"net_forward_pf": '{"dev": "%s"}' % pf_name}
bridge_dict = {"net_name": net_bridge_name,
"net_forward": net_bridge_fwd,
"net_bridge": '{"name": "%s"}' % bridge_name}
if not is_del:
for net_params in (net_dict, bridge_dict):
net_dev = libvirt.create_net_xml(net_params.get("net_name"),
net_params)
if not remote_virsh_session:
if net_dev.get_active():
net_dev.undefine()
net_dev.define()
net_dev.start()
else:
remote.scp_to_remote(server_ip, '22', server_user, server_pwd,
net_dev.xml, net_dev.xml, limit="",
log_filename=None, timeout=600,
interface=None)
remote_virsh_session.net_define(net_dev.xml, **virsh_args)
remote_virsh_session.net_start(net_params.get("net_name"),
**virsh_args)
else:
virsh_session = virsh
if remote_virsh_session:
virsh_session = remote_virsh_session
for nname in (net_hostdev_name, net_bridge_name):
if nname not in virsh_session.net_state_dict():
continue
virsh_session.net_destroy(nname, debug=True, ignore_status=True)
virsh_session.net_undefine(nname, debug=True, ignore_status=True)
def check_vm_network_connection(net_name, expected_conn=0):
"""
Check network connections in network xml
:param net_name: The network to be checked
:param expected_conn: The expected value
:raise: test.fail when fails
"""
output = virsh.net_dumpxml(net_name, debug=True).stdout_text
if expected_conn == 0:
reg_pattern = r"<network>"
else:
reg_pattern = r"<network connections='(\d)'>"
res = re.findall(reg_pattern, output, re.I)
if not res:
test.fail("Unable to find expected connection in %s." % net_name)
if expected_conn != 0:
if expected_conn != int(res[0]):
test.fail("Unable to get expected connection number."
"Expected: %s, Actual %s" % (expected_conn, int(res[0])))
def get_hostdev_addr_from_xml():
"""
Get VM hostdev address
:return: pci driver id
"""
address_dict = {}
for ifac in vm_xml.VMXML.new_from_dumpxml(vm_name).devices.by_device_tag("interface"):
if ifac.type_name == "hostdev":
address_dict = ifac.hostdev_address.attrs
return libvirt.pci_info_from_address(address_dict, 16, "id")
def check_vfio_pci(pci_path, status_error=False):
"""
Check if vf driver is vfio-pci
:param pci_path: The absolute path of pci device
:param status_error: Whether the driver should be vfio-pci
"""
cmd = "readlink %s/driver | awk -F '/' '{print $NF}'" % pci_path
output = process.run(cmd, shell=True, verbose=True).stdout_text.strip()
if (output == "vfio-pci") == status_error:
test.fail("Get incorrect dirver %s, it should%s be vfio-pci."
% (output, ' not' if status_error else ''))
def update_iface_xml(vmxml):
"""
Update interfaces for guest
:param vmxml: vm_xml.VMXML object
"""
vmxml.remove_all_device_by_type('interface')
vmxml.sync()
iface_dict = {"type": "network", "source": "{'network': 'host-bridge'}",
"mac": mac_addr, "model": "virtio",
"teaming": '{"type":"persistent"}',
"alias": '{"name": "ua-backup0"}',
"inbound": '{"average":"5"}',
"outbound": '{"average":"5"}'}
iface_dict2 = {"type": "network", "source": "{'network': 'hostdev-net'}",
"mac": mac_addr, "model": "virtio",
"teaming": '{"type":"transient", "persistent": "ua-backup0"}'}
iface = interface.Interface('network')
for ifc in (iface_dict, iface_dict2):
iface.xml = libvirt.modify_vm_iface(vm.name, "get_xml", ifc)
vmxml.add_device(iface)
vmxml.sync()
migration_test = migration.MigrationTest()
migration_test.check_parameters(params)
# Params for NFS shared storage
shared_storage = params.get("migrate_shared_storage", "")
if shared_storage == "":
default_guest_asset = defaults.get_default_guest_os_info()['asset']
default_guest_asset = "%s.qcow2" % default_guest_asset
shared_storage = os.path.join(params.get("nfs_mount_dir"),
default_guest_asset)
logging.debug("shared_storage:%s", shared_storage)
# Params to update disk using shared storage
params["disk_type"] = "file"
params["disk_source_protocol"] = "netfs"
params["mnt_path_name"] = params.get("nfs_mount_dir")
# Local variables
virsh_args = {"debug": True}
virsh_options = params.get("virsh_options", "")
server_ip = params.get("server_ip")
server_user = params.get("server_user", "root")
server_pwd = params.get("server_pwd")
client_ip = params.get("client_ip")
client_pwd = params.get("client_pwd")
extra = params.get("virsh_migrate_extra")
options = params.get("virsh_migrate_options")
bridge_name = params.get("bridge_name", "br0")
net_hostdev_name = params.get("net_hostdev_name", "hostdev-net")
net_bridge_name = params.get("net_bridge_name", "host-bridge")
driver = params.get("driver", "ixgbe")
vm_tmp_file = params.get("vm_tmp_file", "/tmp/test.txt")
cmd_during_mig = params.get("cmd_during_mig")
net_failover_test = "yes" == params.get("net_failover_test", "no")
cancel_migration = "yes" == params.get("cancel_migration", "no")
try:
vf_no = int(params.get("vf_no", "4"))
except ValueError as e:
test.error(e)
migr_vm_back = "yes" == params.get("migrate_vm_back", "no")
err_msg = params.get("err_msg")
status_error = "yes" == params.get("status_error", "no")
cmd_parms = {'server_ip': server_ip, 'server_user': server_user,
'server_pwd': server_pwd}
remote_virsh_dargs = {'remote_ip': server_ip, 'remote_user': server_user,
'remote_pwd': server_pwd, 'unprivileged_user': None,
'ssh_remote_auth': True}
destparams_dict = copy.deepcopy(params)
remote_virsh_session = None
vm_session = None
vm = None
mig_result = None
func_name = None
extra_args = {}
default_src_vf = 0
default_dest_vf = 0
default_src_rp_filter = 1
default_dest_rp_filer = 1
if not libvirt_version.version_compare(6, 0, 0):
test.cancel("This libvirt version doesn't support migration with "
"net failover devices.")
# params for migration connection
params["virsh_migrate_desturi"] = libvirt_vm.complete_uri(
params.get("migrate_dest_host"))
params["virsh_migrate_connect_uri"] = libvirt_vm.complete_uri(
params.get("migrate_source_host"))
src_uri = params.get("virsh_migrate_connect_uri")
dest_uri = params.get("virsh_migrate_desturi")
vm_name = params.get("migrate_main_vm")
vm = env.get_vm(vm_name)
vm.verify_alive()
# For safety reasons, we'd better back up xmlfile.
new_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = new_xml.copy()
try:
# Create a remote runner for later use
runner_on_target = remote.RemoteRunner(host=server_ip,
username=server_user,
password=server_pwd)
server_session = remote.wait_for_login('ssh', server_ip, '22',
server_user, server_pwd,
r"[\#\$]\s*$")
if net_failover_test:
src_pf, src_pf_pci = utils_sriov.find_pf(driver)
logging.debug("src_pf is %s. src_pf_pci: %s", src_pf, src_pf_pci)
params['pf_name'] = src_pf
dest_pf, dest_pf_pci = utils_sriov.find_pf(driver, server_session)
logging.debug("dest_pf is %s. dest_pf_pci: %s", dest_pf, dest_pf_pci)
destparams_dict['pf_name'] = dest_pf
src_pf_pci_path = utils_misc.get_pci_path(src_pf_pci)
dest_pf_pci_path = utils_misc.get_pci_path(dest_pf_pci, server_session)
cmd = "cat %s/sriov_numvfs" % (src_pf_pci_path)
default_src_vf = process.run(cmd, shell=True,
verbose=True).stdout_text
cmd = "cat %s/sriov_numvfs" % (dest_pf_pci_path)
status, default_dest_vf = utils_misc.cmd_status_output(cmd,
shell=True,
session=server_session)
if status:
test.error("Unable to get default sriov_numvfs on target!"
"status: %s, output: %s" % (status, default_dest_vf))
if not utils_sriov.set_vf(src_pf_pci_path, vf_no):
test.error("Failed to set vf on source.")
if not utils_sriov.set_vf(dest_pf_pci_path, vf_no, session=server_session):
test.error("Failed to set vf on target.")
# Create PF and bridge connection on source and target host
cmd = 'cat /proc/sys/net/ipv4/conf/all/rp_filter'
default_src_rp_filter = process.run(cmd, shell=True,
verbose=True).stdout_text
status, default_dest_rp_filter = utils_misc.cmd_status_output(cmd,
shell=True,
session=server_session)
if status:
test.error("Unable to get default rp_filter on target!"
"status: %s, output: %s" % (status, default_dest_rp_filter))
cmd = 'echo 0 >/proc/sys/net/ipv4/conf/all/rp_filter'
process.run(cmd, shell=True, verbose=True)
utils_misc.cmd_status_output(cmd, shell=True, session=server_session)
utils_sriov.add_or_del_connection(params, is_del=False)
utils_sriov.add_or_del_connection(destparams_dict, is_del=False,
session=server_session)
if not remote_virsh_session:
remote_virsh_session = virsh.VirshPersistent(**remote_virsh_dargs)
create_or_del_networks(dest_pf, params,
remote_virsh_session=remote_virsh_session)
remote_virsh_session.close_session()
create_or_del_networks(src_pf, params)
# Change network interface xml
mac_addr = utils_net.generate_mac_address_simple()
update_iface_xml(new_xml)
# Change the disk of the vm
libvirt.set_vm_disk(vm, params)
if not vm.is_alive():
vm.start()
# Check local guest network connection before migration
if vm.serial_console is not None:
vm.cleanup_serial_console()
vm.create_serial_console()
vm_session = vm.wait_for_serial_login(timeout=240)
if net_failover_test:
utils_net.restart_guest_network(vm_session)
iface_list = get_vm_ifaces(vm_session)
vm_ipv4, vm_ipv6 = utils_net.get_linux_ipaddr(vm_session, iface_list[0])
check_vm_network_accessed(ping_dest=vm_ipv4)
if net_failover_test:
check_vm_iface_num(iface_list)
check_vm_network_connection(net_hostdev_name, 1)
check_vm_network_connection(net_bridge_name, 1)
hostdev_pci_id = get_hostdev_addr_from_xml()
vf_path = utils_misc.get_pci_path(hostdev_pci_id)
check_vfio_pci(vf_path)
if cmd_during_mig:
s, o = utils_misc.cmd_status_output(cmd_during_mig, shell=True,
session=vm_session)
if s:
test.fail("Failed to run %s in vm." % cmd_during_mig)
if extra.count("--postcopy"):
func_name = virsh.migrate_postcopy
extra_args.update({'func_params': params})
if cancel_migration:
func_name = migration_test.do_cancel
# Execute migration process
vms = [vm]
migration_test.do_migration(vms, None, dest_uri, 'orderly',
options, thread_timeout=900,
ignore_status=True, virsh_opt=virsh_options,
func=func_name, extra_opts=extra,
**extra_args)
mig_result = migration_test.ret
migration_test.check_result(mig_result, params)
if int(mig_result.exit_status) == 0:
server_session = remote.wait_for_login('ssh', server_ip, '22',
server_user, server_pwd,
r"[\#\$]\s*$")
check_vm_network_accessed(server_session, vm_ipv4)
server_session.close()
if net_failover_test:
# Check network connection
check_vm_network_connection(net_hostdev_name)
check_vm_network_connection(net_bridge_name)
# VF driver should not be vfio-pci
check_vfio_pci(vf_path, True)
cmd_parms.update({'vm_ip': vm_ipv4,
'vm_pwd': params.get("password")})
vm_after_mig = remote.VMManager(cmd_parms)
vm_after_mig.setup_ssh_auth()
cmd = "ip link"
cmd_result = vm_after_mig.run_command(cmd)
libvirt.check_result(cmd_result)
p_iface = re.findall(r"\d+:\s+(\w+):\s+.*", cmd_result.stdout_text)
p_iface = [x for x in p_iface if x != 'lo']
check_vm_iface_num(p_iface)
# Check the output of ping command
cmd = 'cat %s' % vm_tmp_file
cmd_result = vm_after_mig.run_command(cmd)
libvirt.check_result(cmd_result)
if re.findall('Destination Host Unreachable', cmd_result.stdout_text, re.M):
test.fail("The network does not work well during "
"the migration peirod. ping output: %s"
% cmd_result.stdout_text)
# Execute migration from remote
if migr_vm_back:
ssh_connection = utils_conn.SSHConnection(server_ip=client_ip,
server_pwd=client_pwd,
client_ip=server_ip,
client_pwd=server_pwd)
try:
ssh_connection.conn_check()
except utils_conn.ConnectionError:
ssh_connection.conn_setup()
ssh_connection.conn_check()
# Pre migration setup for local machine
migration_test.migrate_pre_setup(src_uri, params)
cmd = "virsh migrate %s %s %s" % (vm_name,
virsh_options, src_uri)
logging.debug("Start migration: %s", cmd)
cmd_result = remote.run_remote_cmd(cmd, params, runner_on_target)
logging.info(cmd_result)
if cmd_result.exit_status:
test.fail("Failed to run '%s' on remote: %s"
% (cmd, cmd_result))
logging.debug("migration back done")
check_vm_network_accessed(ping_dest=vm_ipv4)
if net_failover_test:
if vm_session:
vm_session.close()
vm_session = vm.wait_for_login()
iface_list = get_vm_ifaces(vm_session)
check_vm_iface_num(iface_list)
else:
check_vm_network_accessed(ping_dest=vm_ipv4)
if net_failover_test:
iface_list = get_vm_ifaces(vm_session)
check_vm_iface_num(iface_list)
finally:
logging.debug("Recover test environment")
# Clean VM on destination
migration_test.cleanup_dest_vm(vm, vm.connect_uri, dest_uri)
if vm.is_alive():
vm.destroy(gracefully=False)
logging.info("Recovery VM XML configration")
orig_config_xml.sync()
logging.debug("The current VM XML:\n%s", orig_config_xml.xmltreefile)
server_session = remote.wait_for_login('ssh', server_ip, '22',
server_user, server_pwd,
r"[\#\$]\s*$")
if 'src_pf' in locals():
cmd = 'echo %s >/proc/sys/net/ipv4/conf/all/rp_filter' % default_src_rp_filter
process.run(cmd, shell=True, verbose=True)
utils_sriov.add_or_del_connection(params, is_del=True)
create_or_del_networks(src_pf, params, is_del=True)
if 'dest_pf' in locals():
cmd = 'echo %s >/proc/sys/net/ipv4/conf/all/rp_filter' % default_dest_rp_filter
utils_misc.cmd_status_output(cmd, shell=True, session=server_session)
utils_sriov.add_or_del_connection(destparams_dict, session=server_session,
is_del=True)
remote_virsh_session = virsh.VirshPersistent(**remote_virsh_dargs)
create_or_del_networks(dest_pf, params,
remote_virsh_session,
is_del=True)
remote_virsh_session.close_session()
if 'dest_pf_pci_path' in locals() and default_dest_vf != vf_no:
utils_sriov.set_vf(dest_pf_pci_path, default_dest_vf, server_session)
if 'src_pf_pci_path' in locals() and default_src_vf != vf_no:
utils_sriov.set_vf(src_pf_pci_path, default_src_vf)
# Clean up of pre migration setup for local machine
if migr_vm_back:
if 'ssh_connection' in locals():
ssh_connection.auto_recover = True
migration_test.migrate_pre_setup(src_uri, params,
cleanup=True)
server_session.close()
if remote_virsh_session:
remote_virsh_session.close_session()
logging.info("Remove local NFS image")
source_file = params.get("source_file")
if source_file:
libvirt.delete_local_disk("file", path=source_file)
def run(test, params, env):
"""
Test interafce xml options.
1.Prepare test environment,destroy or suspend a VM.
2.Edit xml and start the domain.
3.Perform test operation.
4.Recover test environment.
5.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
host_arch = platform.machine()
def prepare_pxe_boot():
"""
Prepare tftp server and pxe boot files
"""
pkg_list = ["syslinux", "tftp-server",
"tftp", "ipxe-roms-qemu", "wget"]
# Try to install required packages
if not utils_package.package_install(pkg_list):
test.error("Failed ot install required packages")
boot_initrd = params.get("boot_initrd", "EXAMPLE_INITRD")
boot_vmlinuz = params.get("boot_vmlinuz", "EXAMPLE_VMLINUZ")
if boot_initrd.count("EXAMPLE") or boot_vmlinuz.count("EXAMPLE"):
test.cancel("Please provide initrd/vmlinuz URL")
# Download pxe boot images
process.system("wget %s -O %s/initrd.img" % (boot_initrd, tftp_root))
process.system("wget %s -O %s/vmlinuz" % (boot_vmlinuz, tftp_root))
process.system("cp -f /usr/share/syslinux/pxelinux.0 {0};"
" mkdir -m 777 -p {0}/pxelinux.cfg".format(tftp_root), shell=True)
ldlinux_file = "/usr/share/syslinux/ldlinux.c32"
if os.path.exists(ldlinux_file):
process.system("cp -f {0} {1}".format(ldlinux_file, tftp_root), shell=True)
pxe_file = "%s/pxelinux.cfg/default" % tftp_root
boot_txt = """
DISPLAY boot.txt
DEFAULT rhel
LABEL rhel
kernel vmlinuz
append initrd=initrd.img
PROMPT 1
TIMEOUT 3"""
with open(pxe_file, 'w') as p_file:
p_file.write(boot_txt)
def modify_iface_xml(sync=True):
"""
Modify interface xml options
:param sync: whether or not sync vmxml after the iface xml modified,
default to be True
"""
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
if pxe_boot:
# Config boot console for pxe boot
osxml = vm_xml.VMOSXML()
osxml.type = vmxml.os.type
osxml.arch = vmxml.os.arch
osxml.machine = vmxml.os.machine
osxml.loader = "/usr/share/seabios/bios.bin"
osxml.bios_useserial = "yes"
if utils_misc.compare_qemu_version(4, 0, 0, False):
osxml.bios_reboot_timeout = "-1"
osxml.boots = ['network']
del vmxml.os
vmxml.os = osxml
xml_devices = vmxml.devices
iface_index = xml_devices.index(
xml_devices.by_device_tag("interface")[0])
iface = xml_devices[iface_index]
if not sync:
params.setdefault('original_iface', vmxml.devices[iface_index])
iface_bandwidth = {}
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
if iface_inbound:
iface_bandwidth["inbound"] = iface_inbound
if iface_outbound:
iface_bandwidth["outbound"] = iface_outbound
if iface_bandwidth:
bandwidth = iface.new_bandwidth(**iface_bandwidth)
iface.bandwidth = bandwidth
iface_type = params.get("iface_type", "network")
iface.type_name = iface_type
source = ast.literal_eval(iface_source)
if not source:
source = {"network": "default"}
net_ifs = utils_net.get_net_if(state="UP")
# Check source device is valid or not,
# if it's not in host interface list, try to set
# source device to first active interface of host
if (iface.type_name == "direct" and
'dev' in source and
source['dev'] not in net_ifs):
logging.warning("Source device %s is not a interface of host, reset to %s",
source['dev'], net_ifs[0])
source['dev'] = net_ifs[0]
del iface.source
iface.source = source
if iface_model:
iface.model = get_iface_model(iface_model, host_arch)
if iface_rom:
iface.rom = eval(iface_rom)
if iface_boot:
vmxml.remove_all_boots()
iface.boot = iface_boot
logging.debug("New interface xml file: %s", iface)
if sync:
vmxml.devices = xml_devices
vmxml.xmltreefile.write()
vmxml.sync()
else:
return iface
def get_iface_model(iface_model, host_arch):
"""
Return iface_model. In case of s390x modify iface_model and log the change.
:param iface_model: iface_model from params
:param host_arch: host architecture, e.g. s390x
:return: //interface/model@type
"""
if 's390x' == host_arch:
logging.debug("On s390x only valid model type are the virtio(-*)."
" Using virtio and ignoring config value %s" % iface_model)
return "virtio"
else:
return iface_model
def run_dnsmasq_default_test(key, value=None, exists=True, name="default"):
"""
Test dnsmasq configuration.
:param key: key in conf file to check
:param value: value in conf file to check
:param exists: check the key:value exist or not
:param name: The name of conf file
"""
conf_file = "/var/lib/libvirt/dnsmasq/%s.conf" % name
if not os.path.exists(conf_file):
test.cancel("Can't find %s.conf file" % name)
configs = ""
with open(conf_file, 'r') as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if value:
config = "%s=%s" % (key, value)
else:
config = key
if not configs.count(config):
if exists:
test.fail("Can't find %s=%s in configuration file" % (key, value))
else:
if not exists:
test.fail("Found %s=%s in configuration file" % (key, value))
def run_dnsmasq_addnhosts_test(hostip, hostnames):
"""
Test host ip and names configuration
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.addnhosts"
hosts_re = ".*".join(hostnames)
configs = ""
with open(conf_file, 'r') as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not re.search(r"%s.*%s" % (hostip, hosts_re), configs, re.M):
test.fail("Can't find '%s' in configuration file" % hostip)
def run_dnsmasq_host_test(iface_mac, guest_ip, guest_name):
"""
Test host name and ip configuration for dnsmasq
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.hostsfile"
config = "%s,%s,%s" % (iface_mac, guest_ip, guest_name)
configs = ""
with open(conf_file, 'r') as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not configs.count(config):
test.fail("Can't find host configuration in file %s" % conf_file)
def check_class_rules(ifname, rule_id, bandwidth):
"""
Check bandwidth settings via 'tc class' output
"""
cmd = "tc class show dev %s" % ifname
class_output = process.run(cmd, shell=True).stdout_text
logging.debug("Bandwidth class output: %s", class_output)
class_pattern = (r"class htb %s.*rate (\d+)(K?M?)bit ceil (\d+)(K?M?)bit burst (\d+)(K?M?)b.*" % rule_id)
se = re.search(class_pattern, class_output, re.M)
if not se:
test.fail("Can't find outbound setting for htb %s" % rule_id)
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
rate = None
if "floor" in bandwidth:
rate = int(bandwidth["floor"]) * 8
elif "average" in bandwidth:
rate = int(bandwidth["average"]) * 8
if rate:
if se.group(2) == 'M':
rate_check = int(se.group(1)) * 1000
else:
rate_check = int(se.group(1))
assert rate_check == rate
if "peak" in bandwidth:
if se.group(4) == 'M':
ceil_check = int(se.group(3)) * 1000
else:
ceil_check = int(se.group(3))
assert ceil_check == int(bandwidth["peak"]) * 8
if "burst" in bandwidth:
if se.group(6) == 'M':
tc_burst = int(se.group(5)) * 1024
else:
tc_burst = int(se.group(5))
assert tc_burst == int(bandwidth["burst"])
def check_filter_rules(ifname, bandwidth, expect_none=False):
"""
Check bandwidth settings via 'tc filter' output
:param ifname: name of iface to be checked
:param bandwidth: bandwidth to be match with
:param expect_none: whether or not expect nothing in output,
default to be False
:return: if expect nothing from the output,
return True if the output is empty,
else return False
"""
cmd = "tc -d filter show dev %s parent ffff:" % ifname
filter_output = process.run(cmd, shell=True).stdout_text
logging.debug("Bandwidth filter output: %s", filter_output)
if expect_none:
return not filter_output.strip()
if not filter_output.count("filter protocol all pref"):
test.fail("Can't find 'protocol all' settings in filter rules")
filter_pattern = r".*police.*rate (\d+)(K?M?)bit burst (\d+)(K?M?)b.*"
se = re.search(r"%s" % filter_pattern, filter_output, re.M)
if not se:
test.fail("Can't find any filter policy")
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
logging.debug("bandwidth from setting:%s" % str(bandwidth))
if "average" in bandwidth:
if se.group(2) == 'M':
tc_average = int(se.group(1)) * 1000
else:
tc_average = int(se.group(1))
assert tc_average == int(bandwidth["average"]) * 8
if "burst" in bandwidth:
if se.group(4) == 'M':
tc_burst = int(se.group(3)) * 1024
else:
tc_burst = int(se.group(3))
assert tc_burst == int(bandwidth["burst"])
def check_host_routes():
"""
Check network routes on host
"""
for rt in routes:
try:
route = ast.literal_eval(rt)
addr = "%s/%s" % (route["address"], route["prefix"])
cmd = "ip route list %s" % addr
if "family" in route and route["family"] == "ipv6":
cmd = "ip -6 route list %s" % addr
output = process.run(cmd, shell=True).stdout_text
match_obj = re.search(r"via (\S+).*metric (\d+)", output)
if match_obj:
via_addr = match_obj.group(1)
metric = match_obj.group(2)
logging.debug("via address %s for %s, matric is %s"
% (via_addr, addr, metric))
assert via_addr == route["gateway"]
if "metric" in route:
assert metric == route["metric"]
except KeyError:
pass
def run_bandwidth_test(check_net=False, check_iface=False):
"""
Test bandwidth option for network or interface by tc command.
"""
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
net_inbound = ast.literal_eval(net_bandwidth_inbound)
net_outbound = ast.literal_eval(net_bandwidth_outbound)
net_bridge_name = ast.literal_eval(net_bridge)["name"]
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
try:
if check_net and net_inbound:
# Check qdisc rules
cmd = "tc -d qdisc show dev %s" % net_bridge_name
qdisc_output = process.run(cmd, shell=True).stdout_text
logging.debug("Bandwidth qdisc output: %s", qdisc_output)
if not qdisc_output.count("qdisc ingress ffff:"):
test.fail("Can't find ingress setting")
check_class_rules(net_bridge_name, "1:1",
{"average": net_inbound["average"],
"peak": net_inbound["peak"]})
check_class_rules(net_bridge_name, "1:2", net_inbound)
# Check filter rules on bridge interface
if check_net and net_outbound:
check_filter_rules(net_bridge_name, net_outbound)
# Check class rules on interface inbound settings
if check_iface and iface_inbound:
check_class_rules(iface_name, "1:1",
{'average': iface_inbound['average'],
'peak': iface_inbound['peak'],
'burst': iface_inbound['burst']})
if "floor" in iface_inbound:
if not libvirt_version.version_compare(1, 0, 1):
test.cancel("Not supported Qos options 'floor'")
check_class_rules(net_bridge_name, "1:3",
{'floor': iface_inbound["floor"]})
# Check filter rules on interface outbound settings
if check_iface and iface_outbound:
check_filter_rules(iface_name, iface_outbound)
except AssertionError:
stacktrace.log_exc_info(sys.exc_info())
test.fail("Failed to check network bandwidth")
def check_name_ip(session):
"""
Check dns resolving on guest
"""
# Check if bind-utils is installed
if "ubuntu" in vm.get_distro().lower():
pkg = "bind9"
else:
pkg = "bind-utils"
if not utils_package.package_install(pkg, session):
test.error("Failed to install bind-utils on guest")
# Run host command to check if hostname can be resolved
if not guest_ipv4 and not guest_ipv6:
test.fail("No ip address found from parameters")
guest_ip = guest_ipv4 if guest_ipv4 else guest_ipv6
cmd = "host %s | grep %s" % (guest_name, guest_ip)
if session.cmd_status(cmd):
test.fail("Can't resolve name %s on guest" % guest_name)
def check_ipt_rules(check_ipv4=True, check_ipv6=False):
"""
Check iptables for network/interface
"""
br_name = ast.literal_eval(net_bridge)["name"]
net_forward = ast.literal_eval(params.get("net_forward", "{}"))
net_ipv4 = params.get("net_ipv4")
net_ipv6 = params.get("net_ipv6")
net_dev_in = ""
net_dev_out = ""
if "dev" in net_forward:
net_dev_in = " -i %s" % net_forward["dev"]
net_dev_out = " -o %s" % net_forward["dev"]
if libvirt_version.version_compare(5, 1, 0):
input_chain = "LIBVIRT_INP"
output_chain = "LIBVIRT_OUT"
postrouting_chain = "LIBVIRT_PRT"
forward_filter = "LIBVIRT_FWX"
forward_in = "LIBVIRT_FWI"
forward_out = "LIBVIRT_FWO"
else:
input_chain = "INPUT"
output_chain = "OUTPUT"
postrouting_chain = "POSTROUTING"
forward_filter = "FORWARD"
forward_in = "FORWARD"
forward_out = "FORWARD"
ipt_rules = (
"%s -i %s -p udp -m udp --dport 53 -j ACCEPT" % (input_chain, br_name),
"%s -i %s -p tcp -m tcp --dport 53 -j ACCEPT" % (input_chain, br_name),
"{0} -i {1} -o {1} -j ACCEPT".format(forward_filter, br_name),
"%s -o %s -j REJECT --reject-with icmp" % (forward_in, br_name),
"%s -i %s -j REJECT --reject-with icmp" % (forward_out, br_name))
if check_ipv4:
ipv4_rules = list(ipt_rules)
ipv4_rules.extend(
["%s -i %s -p udp -m udp --dport 67 -j ACCEPT" % (input_chain, br_name),
"%s -i %s -p tcp -m tcp --dport 67 -j ACCEPT" % (input_chain, br_name),
"%s -o %s -p udp -m udp --dport 68 -j ACCEPT" % (output_chain, br_name),
"%s -o %s -p udp -m udp --dport 68 "
"-j CHECKSUM --checksum-fill" % (postrouting_chain, br_name)])
ctr_rule = ""
nat_rules = []
if "mode" in net_forward and net_forward["mode"] == "nat":
nat_port = ast.literal_eval(params.get("nat_port"))
p_start = nat_port["start"]
p_end = nat_port["end"]
ctr_rule = " -m .* RELATED,ESTABLISHED"
nat_rules = [("{0} -s {1} ! -d {1} -p tcp -j MASQUERADE"
" --to-ports {2}-{3}".format(postrouting_chain, net_ipv4, p_start, p_end)),
("{0} -s {1} ! -d {1} -p udp -j MASQUERADE"
" --to-ports {2}-{3}".format(postrouting_chain, net_ipv4, p_start, p_end)),
("{0} -s {1} ! -d {1}"
" -j MASQUERADE".format(postrouting_chain, net_ipv4))]
if nat_rules:
ipv4_rules.extend(nat_rules)
if (net_ipv4 and "mode" in net_forward and
net_forward["mode"] in ["nat", "route"]):
rules = [("%s -d %s%s -o %s%s -j ACCEPT"
% (forward_in, net_ipv4, net_dev_in, br_name, ctr_rule)),
("%s -s %s -i %s%s -j ACCEPT"
% (forward_out, net_ipv4, br_name, net_dev_out))]
ipv4_rules.extend(rules)
output = process.run('iptables-save', shell=True).stdout_text
logging.debug("iptables: %s", output)
if "mode" in net_forward and net_forward["mode"] == "open":
if re.search(r"%s|%s" % (net_ipv4, br_name), output, re.M):
test.fail("Find iptable rule for open mode")
utils_libvirtd.libvirtd_restart()
output_again = process.run('iptables-save', shell=True).stdout_text
if re.search(r"%s|%s" % (net_ipv4, br_name), output_again, re.M):
test.fail("Find iptable rule for open mode after restart "
"libvirtd")
else:
logging.info("Can't find iptable rule for open mode as expected")
else:
for ipt in ipv4_rules:
if not re.search(r"%s" % ipt, output, re.M):
test.fail("Can't find iptable rule:\n%s" % ipt)
return ipv4_rules
if check_ipv6:
ipv6_rules = list(ipt_rules)
ipt6_rules.extend([
("INPUT -i %s -p udp -m udp --dport 547 -j ACCEPT" % br_name)])
if (net_ipv6 and "mode" in net_forward and
net_forward["mode"] in ["nat", "route"]):
rules = [("%s -d %s%s -o %s -j ACCEPT"
% (forward_in, net_ipv6, net_dev_in, br_name)),
("%s -s %s -i %s%s -j ACCEPT"
% (forward_out, net_ipv6, br_name, net_dev_out))]
ipv6_rules.extend(rules)
output = process.run("ip6tables-save", shell=True).stdout_text
logging.debug("ip6tables: %s", output)
if "mode" in net_forward and net_forward["mode"] == "open":
if re.search(r"%s|%s" % (net_ipv6, br_name), output, re.M):
test.fail("Find ip6table rule for open mode")
utils_libvirtd.libvirtd_restart()
output_again = process.run('ip6tables-save', shell=True).stdout_text
if re.search(r"%s|%s" % (net_ipv6, br_name), output_again, re.M):
test.fail("Find ip6table rule for open mode after restart "
"libvirtd")
else:
for ipt in ipv6_rules:
if not re.search(r"%s" % ipt, output, re.M):
test.fail("Can't find ip6table rule:\n%s" % ipt)
return ipv6_rules
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
if not get_ip_func():
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
test.fail("Can't find ip address on guest")
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ip_gateway = net_ipv6_address
# Cleanup ip6talbes on host for ping6 test
process.system("ip6tables -F")
if ip_gateway and not routes:
ping_s, _ = ping(dest=ip_gateway, count=5,
timeout=10, session=session)
if ping_s:
test.fail("Failed to ping gateway address: %s" % ip_gateway)
def run_guest_libvirt(session):
"""
Check guest libvirt network
"""
# Try to install required packages
if "ubuntu" in vm.get_distro().lower():
pkg = "libvirt-bin"
else:
pkg = "libvirt"
if not utils_package.package_install(pkg, session):
test.error("Failed to install libvirt package on guest")
# Try to load tun module first
session.cmd("lsmod | grep tun || modprobe tun")
# Check network state on guest
cmd = ("service libvirtd restart; virsh net-info default"
" | grep 'Active:.*yes'")
if session.cmd_status(cmd):
test.fail("'default' network isn't in active state")
# Try to destroy&start default network on guest
for opt in ['net-destroy', 'net-start']:
cmd = "virsh %s default" % opt
status, output = session.cmd_status_output(cmd)
logging.debug("Run %s on guest exit %s, output %s"
% (cmd, status, output))
if status:
test.fail(output)
if not utils_package.package_remove("libvirt*", session):
test.error("Failed to remove libvirt packages on guest")
start_error = "yes" == params.get("start_error", "no")
define_error = "yes" == params.get("define_error", "no")
restart_error = "yes" == params.get("restart_error", "no")
# network specific attributes.
net_name = params.get("net_name", "default")
net_bridge = params.get("net_bridge", "{'name':'virbr0'}")
net_domain = params.get("net_domain")
net_ip_address = params.get("net_ip_address")
net_ipv6_address = params.get("net_ipv6_address")
net_dns_forward = params.get("net_dns_forward")
net_dns_txt = params.get("net_dns_txt")
net_dns_srv = params.get("net_dns_srv")
net_dns_hostip = params.get("net_dns_hostip")
net_dns_hostnames = params.get("net_dns_hostnames", "").split()
dhcp_start_ipv4 = params.get("dhcp_start_ipv4")
dhcp_end_ipv4 = params.get("dhcp_end_ipv4")
dhcp_start_ipv6 = params.get("dhcp_start_ipv6")
dhcp_end_ipv6 = params.get("dhcp_end_ipv6")
guest_name = params.get("guest_name")
guest_ipv4 = params.get("guest_ipv4")
guest_ipv6 = params.get("guest_ipv6")
tftp_root = params.get("tftp_root")
pxe_boot = "yes" == params.get("pxe_boot", "no")
routes = params.get("routes", "").split()
net_bandwidth_inbound = params.get("net_bandwidth_inbound", "{}")
net_bandwidth_outbound = params.get("net_bandwidth_outbound", "{}")
iface_bandwidth_inbound = params.get("iface_bandwidth_inbound", "{}")
iface_bandwidth_outbound = params.get("iface_bandwidth_outbound", "{}")
iface_num = params.get("iface_num", "1")
iface_source = params.get("iface_source", "{}")
iface_rom = params.get("iface_rom")
iface_boot = params.get("iface_boot")
iface_model = params.get("iface_model")
multiple_guests = params.get("multiple_guests")
create_network = "yes" == params.get("create_network", "no")
attach_iface = "yes" == params.get("attach_iface", "no")
serial_login = "******" == params.get("serial_login", "no")
change_iface_option = "yes" == params.get("change_iface_option", "no")
test_bridge = "yes" == params.get("test_bridge", "no")
test_dnsmasq = "yes" == params.get("test_dnsmasq", "no")
test_dhcp_range = "yes" == params.get("test_dhcp_range", "no")
test_dns_host = "yes" == params.get("test_dns_host", "no")
test_qos_bandwidth = "yes" == params.get("test_qos_bandwidth", "no")
test_pg_bandwidth = "yes" == params.get("test_portgroup_bandwidth", "no")
test_qos_remove = "yes" == params.get("test_qos_remove", "no")
test_ipv4_address = "yes" == params.get("test_ipv4_address", "no")
test_ipv6_address = "yes" == params.get("test_ipv6_address", "no")
test_guest_libvirt = "yes" == params.get("test_guest_libvirt", "no")
test_dns_forwarders = "yes" == params.get("test_dns_forwarders", "no")
net_no_bridge = "yes" == params.get("no_bridge", "no")
net_no_mac = "yes" == params.get("no_mac", "no")
net_no_ip = "yes" == params.get("no_ip", "no")
net_with_dev = "yes" == params.get("with_dev", "no")
update_device = 'yes' == params.get('update_device', 'no')
remove_bandwidth = 'yes' == params.get('remove_bandwidth', 'no')
loop = int(params.get('loop', 0))
username = params.get("username")
password = params.get("password")
forward = ast.literal_eval(params.get("net_forward", "{}"))
boot_failure = "yes" == params.get("boot_failure", "no")
test_netmask = "yes" == params.get("test_netmask", "no")
ipt_rules = []
ipt6_rules = []
define_macvtap = "yes" == params.get("define_macvtap", "no")
net_dns_forwarders = params.get("net_dns_forwarders", "").split()
# Destroy VM first
if vm.is_alive() and not update_device:
vm.destroy(gracefully=False)
# Back up xml file.
netxml_backup = NetworkXML.new_from_net_dumpxml("default")
iface_mac = vm_xml.VMXML.get_first_mac_by_name(vm_name)
params["guest_mac"] = iface_mac
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vms_list = []
if "floor" in ast.literal_eval(iface_bandwidth_inbound):
if not libvirt_version.version_compare(1, 0, 1):
test.cancel("Not supported Qos options 'floor'")
# Enabling IPv6 forwarding with RA routes without accept_ra set to 2
# is likely to cause routes loss
sysctl_cmd = 'sysctl net.ipv6.conf.all.accept_ra'
original_accept_ra = process.run(sysctl_cmd + ' -n', shell=True).stdout_text
if test_ipv6_address and original_accept_ra != '2':
process.system(sysctl_cmd + '=2')
# Build the xml and run test.
try:
if test_dnsmasq:
# Check the settings before modifying network xml
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed", exists=False)
run_dnsmasq_default_test("local", "//", exists=False)
if net_domain:
run_dnsmasq_default_test("domain", net_domain, exists=False)
run_dnsmasq_default_test("expand-hosts", exists=False)
# Prepare pxe boot directory
if pxe_boot:
prepare_pxe_boot()
# Edit the network xml or create a new one.
if create_network:
net_ifs = utils_net.get_net_if(state="UP")
# Check forward device is valid or not,
# if it's not in host interface list, try to set
# forward device to first active interface of host
if ('mode' in forward and forward['mode'] in
['passthrough', 'private', 'bridge', 'macvtap'] and
'dev' in forward and
forward['dev'] not in net_ifs):
logging.warning("Forward device %s is not a interface of host, reset to %s",
forward['dev'], net_ifs[0])
forward['dev'] = net_ifs[0]
params["net_forward"] = str(forward)
if define_macvtap:
for i in [0, 2, 4]:
cmd = "ip l add li %s macvtap%s type macvtap" % (forward['dev'], i)
process.run(cmd, shell=True, verbose=True)
process.run("ip l", shell=True, verbose=True)
forward_iface = params.get("forward_iface")
if forward_iface:
interface = [x for x in forward_iface.split()]
# The guest will use first interface of the list,
# check if it's valid or not, if it's not in host
# interface list, try to set forward interface to
# first active interface of host.
if interface[0] not in net_ifs:
logging.warning("Forward interface %s is not a interface of host, reset to %s",
interface[0], net_ifs[0])
interface[0] = net_ifs[0]
params["forward_iface"] = " ".join(interface)
netxml = libvirt.create_net_xml(net_name, params)
if "mode" in forward and forward["mode"] == "open":
netxml.mac = utils_net.generate_mac_address_simple()
try:
if net_no_bridge:
netxml.del_bridge()
if net_no_ip:
netxml.del_ip()
netxml.del_ip()
if net_no_mac:
netxml.del_mac()
except xcepts.LibvirtXMLNotFoundError:
pass
if net_with_dev:
net_forward = netxml.forward
net_forward.update({"dev": net_ifs[0]})
netxml.forward = net_forward
logging.info("netxml before define is %s", netxml)
try:
netxml.sync()
except xcepts.LibvirtXMLError as details:
logging.info(str(details))
if define_error:
return
else:
test.fail("Failed to define network")
# Check open mode network xml
if "mode" in forward and forward["mode"] == "open":
netxml_new = NetworkXML.new_from_net_dumpxml(net_name)
logging.info("netxml after define is %s", netxml_new)
try:
if net_no_bridge:
net_bridge = str(netxml_new.bridge)
if net_no_mac:
netxml_new.mac
except xcepts.LibvirtXMLNotFoundError as details:
test.fail("Failed to check %s xml: %s" % (net_name, details))
logging.info("mac/bridge still exist even if removed before define")
# Edit the interface xml.
if change_iface_option:
try:
if update_device:
updated_iface = modify_iface_xml(sync=False)
virsh.update_device(vm_name, updated_iface.xml,
ignore_status=False, debug=True)
else:
modify_iface_xml()
except xcepts.LibvirtXMLError as details:
logging.info(str(details))
if define_error:
if not str(details).count("Failed to define"):
test.fail("VM sync failed msg not expected")
return
else:
test.fail("Failed to sync VM")
# Attach interface if needed
if attach_iface:
iface_type = params.get("iface_type", "network")
for i in range(int(iface_num)):
logging.info("Try to attach interface loop %s" % i)
options = ("%s %s --model %s --config" %
(iface_type, net_name, iface_model))
ret = virsh.attach_interface(vm_name, options,
ignore_status=True)
if ret.exit_status:
logging.error("Command output %s" %
ret.stdout.strip())
test.fail("Failed to attach-interface")
if multiple_guests:
# Clone more vms for testing
for i in range(int(multiple_guests)):
guest_name = "%s_%s" % (vm_name, i)
timeout = params.get("clone_timeout", 360)
utils_libguestfs.virt_clone_cmd(vm_name, guest_name,
True, timeout=timeout)
vms_list.append(vm.clone(guest_name))
if test_bridge:
bridge = ast.literal_eval(net_bridge)
br_if = utils_net.Interface(bridge['name'])
if not br_if.is_up():
test.fail("Bridge interface isn't up")
if test_dnsmasq:
# Check dnsmasq process
dnsmasq_cmd = process.run("ps -aux|grep dnsmasq", shell=True).stdout_text
logging.debug(dnsmasq_cmd)
if not re.search("dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/%s.conf"
% net_name, dnsmasq_cmd):
test.fail("Can not find dnsmasq process or the process is not correct")
# Check the settings in dnsmasq config file
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed")
run_dnsmasq_default_test("local", "//")
if net_domain:
run_dnsmasq_default_test("domain", net_domain)
run_dnsmasq_default_test("expand-hosts")
if net_bridge:
bridge = ast.literal_eval(net_bridge)
run_dnsmasq_default_test("interface", bridge['name'], name=net_name)
if 'stp' in bridge and bridge['stp'] == 'on':
if 'delay' in bridge and bridge['delay'] != '0':
# network xml forward delay value in seconds, while on
# host, check by ip command, the value is in second*100
br_delay = int(bridge['delay']) * 100
logging.debug("Expect forward_delay is %s ms" % br_delay)
cmd = ("ip -d link sh %s | grep 'bridge forward_delay'"
% bridge['name'])
out = process.run(
cmd, shell=True, ignore_status=False).stdout_text
logging.debug("bridge statistics output: %s", out)
pattern = (r"\s*bridge forward_delay\s+(\d+)")
match_obj = re.search(pattern, out, re.M)
if not match_obj:
test.fail("Can't see forward delay messages from command")
elif int(match_obj.group(1)) != br_delay:
test.fail("Foward delay setting can't take effect")
else:
logging.debug("Foward delay set successfully!")
if dhcp_start_ipv4 and dhcp_end_ipv4:
run_dnsmasq_default_test("dhcp-range", "%s,%s"
% (dhcp_start_ipv4, dhcp_end_ipv4),
name=net_name)
if dhcp_start_ipv6 and dhcp_end_ipv6:
run_dnsmasq_default_test("dhcp-range", "%s,%s,64"
% (dhcp_start_ipv6, dhcp_end_ipv6),
name=net_name)
if guest_name and guest_ipv4:
run_dnsmasq_host_test(iface_mac, guest_ipv4, guest_name)
if test_netmask and libvirt_version.version_compare(5, 1, 0):
run_dnsmasq_default_test("dhcp-range", "192.168.122.2,192.168.122.254,255.255.252.0")
# check the left part in dnsmasq conf
run_dnsmasq_default_test("strict-order", name=net_name)
if libvirt_version.version_compare(6, 0, 0):
run_dnsmasq_default_test("pid-file", "/run/libvirt/network/%s.pid" % net_name, name=net_name)
else:
run_dnsmasq_default_test("pid-file", "/var/run/libvirt/network/%s.pid" % net_name, name=net_name)
run_dnsmasq_default_test("except-interface", "lo", name=net_name)
run_dnsmasq_default_test("bind-dynamic", name=net_name)
run_dnsmasq_default_test("dhcp-no-override", name=net_name)
if dhcp_start_ipv6 and dhcp_start_ipv4:
run_dnsmasq_default_test("dhcp-lease-max", "493", name=net_name)
else:
range_num = int(params.get("dhcp_range", "252"))
run_dnsmasq_default_test("dhcp-lease-max", str(range_num + 1), name=net_name)
run_dnsmasq_default_test("dhcp-hostsfile",
"/var/lib/libvirt/dnsmasq/%s.hostsfile" % net_name,
name=net_name)
run_dnsmasq_default_test("addn-hosts",
"/var/lib/libvirt/dnsmasq/%s.addnhosts" % net_name,
name=net_name)
if dhcp_start_ipv6:
run_dnsmasq_default_test("enable-ra", name=net_name)
if test_dns_host:
if net_dns_txt:
dns_txt = ast.literal_eval(net_dns_txt)
run_dnsmasq_default_test("txt-record", "%s,%s" %
(dns_txt["name"],
dns_txt["value"]))
if net_dns_srv:
dns_srv = ast.literal_eval(net_dns_srv)
run_dnsmasq_default_test("srv-host", "_%s._%s.%s,%s,%s,%s,%s" %
(dns_srv["service"], dns_srv["protocol"],
dns_srv["domain"], dns_srv["target"],
dns_srv["port"], dns_srv["priority"],
dns_srv["weight"]))
if net_dns_hostip and net_dns_hostnames:
run_dnsmasq_addnhosts_test(net_dns_hostip, net_dns_hostnames)
if test_dns_forwarders:
if net_name == "isolatedtest":
run_dnsmasq_default_test("no-resolv", name=net_name)
else:
net_dns_forwarder = [ast.literal_eval(x) for x in net_dns_forwarders]
for forwarder in net_dns_forwarder:
if ('domain' in forwarder) and ('addr' in forwarder):
run_dnsmasq_default_test("server", "/%s/%s" % (forwarder['domain'], forwarder['addr']))
elif "domain" in forwarder:
run_dnsmasq_default_test("server", "/%s/#" % forwarder['domain'])
elif "addr" in forwarder:
run_dnsmasq_default_test("server", "%s" % forwarder['addr'])
run_dnsmasq_default_test("no-resolv")
# Run bandwidth test for network
if test_qos_bandwidth and not update_device:
run_bandwidth_test(check_net=True)
# If to remove bandwidth from iface,
# update iface xml to the original one
if remove_bandwidth:
ori_iface = params['original_iface']
logging.debug(ori_iface)
virsh.update_device(vm_name, ori_iface.xml,
ignore_status=False, debug=True)
# Check routes if needed
if routes:
check_host_routes()
try:
# Start the VM.
if not update_device:
vm.start()
if start_error:
test.fail("VM started unexpectedly")
if define_macvtap:
cmd = "ls /sys/devices/virtual/net"
output = process.run(cmd, shell=True, verbose=True).stdout_text
macvtap_list = re.findall(r'macvtap0|macvtap1|macvtap2|macvtap3'
r'|macvtap4|macvtap5|macvtap6|macvtap7',
output)
logging.debug("The macvtap_list is %s" % macvtap_list)
if set(macvtap_list) != set(['macvtap' + str(x) for x in range(8)]):
test.fail("Existing macvtap device %s is not expected! should be macvtap(0-7)" % macvtap_list)
if pxe_boot:
# Just check network boot messages here
try:
vm.serial_console.read_until_output_matches(
["Loading vmlinuz", "Loading initrd.img"],
utils_misc.strip_console_codes)
except ExpectTimeoutError as details:
if boot_failure:
logging.info("Fail to boot from pxe as expected")
else:
test.fail("Fail to boot from pxe")
else:
if serial_login:
session = vm.wait_for_serial_login(username=username,
password=password)
else:
session = vm.wait_for_login()
if test_dhcp_range:
dhcp_range = int(params.get("dhcp_range", "252"))
utils_net.restart_guest_network(session, iface_mac)
vm_ip = utils_net.get_guest_ip_addr(session, iface_mac)
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip and dhcp_range:
test.fail("Guest has invalid ip address")
elif vm_ip and not dhcp_range:
test.fail("Guest has ip address: %s" % vm_ip)
dhcp_range = dhcp_range - 1
for vms in vms_list:
# Start other VMs.
vms.start()
sess = vms.wait_for_serial_login()
vms_mac = vms.get_virsh_mac_address()
# restart guest network to get ip addr
utils_net.restart_guest_network(sess, vms_mac)
vms_ip = utils_net.get_guest_ip_addr(sess,
vms_mac)
if not vms_ip and dhcp_range:
test.fail("Guest has invalid ip address")
elif vms_ip and not dhcp_range:
# Get IP address on guest should return Null
# if it exceeds the dhcp range
test.fail("Guest has ip address: %s" % vms_ip)
dhcp_range = dhcp_range - 1
if vms_ip:
ping_s, _ = ping(dest=vm_ip, count=5,
timeout=10, session=sess)
if ping_s:
test.fail("Failed to ping, src: %s, "
"dst: %s" % (vms_ip, vm_ip))
sess.close()
# Check dnsmasq settings if take affect in guest
if guest_ipv4:
check_name_ip(session)
# Run bandwidth test for interface
if test_qos_bandwidth:
run_bandwidth_test(check_iface=True)
# Run bandwidth test for portgroup
if test_pg_bandwidth:
pg_bandwidth_inbound = params.get(
"portgroup_bandwidth_inbound", "").split()
pg_bandwidth_outbound = params.get(
"portgroup_bandwidth_outbound", "").split()
pg_name = params.get("portgroup_name", "").split()
pg_default = params.get("portgroup_default", "").split()
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
if_source = ast.literal_eval(iface_source)
if "portgroup" in if_source:
pg = if_source["portgroup"]
else:
pg = "default"
for (name, df, bw_ib, bw_ob) in zip(pg_name, pg_default,
pg_bandwidth_inbound,
pg_bandwidth_outbound):
if pg == name:
inbound = ast.literal_eval(bw_ib)
outbound = ast.literal_eval(bw_ob)
elif pg == "default" and df == "yes":
inbound = ast.literal_eval(bw_ib)
outbound = ast.literal_eval(bw_ob)
else:
continue
# Interface bandwidth settings will
# overwriting portgroup settings
if iface_inbound:
inbound = iface_inbound
if iface_outbound:
outbound = iface_outbound
check_class_rules(iface_name, "1:1", inbound)
check_filter_rules(iface_name, outbound)
if test_qos_remove:
# Remove the bandwidth settings in network xml
logging.debug("Removing network bandwidth settings...")
netxml_backup.sync()
vm.destroy(gracefully=False)
# Should fail to start vm
vm.start()
if restart_error:
test.fail("VM started unexpectedly")
if test_ipv6_address:
ipt6_rules = check_ipt_rules(check_ipv4=False, check_ipv6=True)
if not ("mode" in forward and forward["mode"] == "open"):
run_ip_test(session, "ipv6")
if test_ipv4_address:
ipt_rules = check_ipt_rules(check_ipv4=True)
if not ("mode" in forward and forward["mode"] == "open"):
run_ip_test(session, "ipv4")
if test_guest_libvirt:
run_guest_libvirt(session)
session.close()
except virt_vm.VMStartError as details:
logging.info(str(details))
if not (start_error or restart_error):
test.fail('VM failed to start:\n%s' % details)
# Destroy created network and check iptable rules
if net_name != "default":
virsh.net_destroy(net_name)
if ipt_rules:
output_des = process.run('iptables-save', shell=True).stdout_text
for ipt in ipt_rules:
if re.search(r"%s" % ipt, output_des, re.M):
test.fail("Find iptable rule %s after net destroyed" % ipt)
if ipt6_rules:
output_des = process.run('ip6tables-save', shell=True).stdout_text
for ipt in ipt6_rules:
if re.search(r"%s" % ipt, output_des, re.M):
test.fail("Find ip6table rule %s after net destroyed" % ipt)
if remove_bandwidth:
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
cur_xml = virsh.dumpxml(vm_name).stdout_text
logging.debug(cur_xml)
if 'bandwidth' in cur_xml:
test.fail('bandwidth still in xml')
if not check_filter_rules(iface_name, 0, expect_none=True):
test.fail('There should be nothing in output')
if update_device and loop:
loop -= 1
if loop:
# Rerun this procedure again with updated params
# Reset params of the corresponding loop
loop_prefix = 'loop' + str(loop) + '_'
for k in {k: v for k, v in params.items() if k.startswith(loop_prefix)}:
params[k.lstrip(loop_prefix)] = params[k]
params['loop'] = str(loop)
run(test, params, env)
finally:
# Recover VM.
if vm.is_alive():
vm.destroy(gracefully=False)
for vms in vms_list:
virsh.remove_domain(vms.name, "--remove-all-storage")
logging.info("Restoring network...")
if net_name == "default":
netxml_backup.sync()
else:
# Destroy and undefine new created network
virsh.net_destroy(net_name)
virsh.net_undefine(net_name)
vmxml_backup.sync()
if test_ipv6_address and original_accept_ra != '2':
process.system(sysctl_cmd + "=%s" % original_accept_ra)
if define_macvtap:
cmd = "ip l del macvtap0; ip l del macvtap2; ip l del macvtap4"
process.run(cmd, shell=True, verbose=True)
def run(test, params, env):
"""
Test bridge support from network
1) create a linux bridge and connect a physical interface to it
2) define nwfilter with "vdsm-no-mac-spoofing"
3) redefine the vm with the new create bridge and filter
4) check if guest can get public ip after vm start
5) check if guest and host can ping each other
6) check if guest and host can ping outside
7) start another vm connected to the same bridge
8) check if the 2 guests can ping each other
"""
def create_bridge(br_name, iface_name):
"""
Create a linux bridge by virsh cmd:
1. Stop NetworkManager and Start network service
2. virsh iface-bridge <iface> <name> [--no-stp]
:param br_name: bridge name
:param iface_name: physical interface name
:return: bridge created or raise exception
"""
# Make sure the bridge not exist
if libvirt.check_iface(br_name, "exists", "--all"):
test.cancel("The bridge %s already exist" % br_name)
# Create bridge
utils_package.package_install('tmux')
cmd = 'tmux -c "ip link add name {0} type bridge; ip link set {1} up;' \
' ip link set {1} master {0}; ip link set {0} up;' \
' pkill dhclient; sleep 6; dhclient {0}; ifconfig {1} 0"'.format(br_name, iface_name)
process.run(cmd, shell=True, verbose=True)
def create_bridge_network(br_name, net_name):
"""
Define and start the bridge type network
"""
# check if network with the same name already exists
output_all = virsh.net_list("--all").stdout.strip()
if re.search(net_name, output_all):
test.cancel("Network with the same name already exists!")
test_xml = network_xml.NetworkXML(network_name="%s" % net_name)
test_xml.forward = {"mode": "bridge"}
test_xml.bridge = {"name": br_name}
test_xml.create()
def define_nwfilter(filter_name):
"""
Define nwfilter vdsm-no-mac-spoofing with content like:
<filter name='vdsm-no-mac-spoofing' chain='root'>
<filterref filter='no-mac-spoofing'/>
<filterref filter='no-arp-mac-spoofing'/>
</filter>
:param filter_name: the name of nwfilter
:return: filter created or raise exception
"""
filter_uuid = params.get("filter_uuid",
"11111111-b071-6127-b4ec-111111111111")
filter_params = {
"filter_name": "vdsm-no-mac-spoofing",
"filter_chain": "root",
"filter_uuid": filter_uuid,
"filterref_name_1": "no-mac-spoofing",
"filterref_name_2": "no-arp-mac-spoofing"
}
filter_xml = libvirt.create_nwfilter_xml(filter_params).xml
# Run command
result = virsh.nwfilter_define(filter_xml,
ignore_status=True,
debug=True)
if result.exit_status:
test.fail("Failed to define nwfilter with %s" % filter_xml)
def ping(src_ip, dest_ip, ping_count, timeout, session=None):
"""
Wrap of ping
:param src_ip: source address
:param dest_ip: destination address
:param ping_count: count of icmp packet
:param timeout: timeout for the ping command
:param session: local execution or session to execute the ping command
:return: ping succeed or raise exception
"""
status, output = utils_net.ping(dest=dest_ip,
count=ping_count,
interface=src_ip,
timeout=timeout,
session=session,
force_ipv4=True)
if status:
test.fail("Fail to ping %s from %s" % (dest_ip, src_ip))
def check_net_functions(guest_ip, ping_count, ping_timeout, guest_session,
host_ip, remote_url, endpoint_ip):
# make sure host network works well
# host ping remote url
ping(host_ip, remote_url, ping_count, ping_timeout)
# host ping guest
ping(host_ip, guest_ip, ping_count, ping_timeout)
# guest ping host
ping(guest_ip,
host_ip,
ping_count,
ping_timeout,
session=guest_session)
# guest ping remote url
ping(guest_ip,
remote_url,
ping_count,
ping_timeout,
session=guest_session)
# guest ping endpoint
ping(guest_ip,
endpoint_ip,
ping_count,
ping_timeout,
session=guest_session)
# Get test params
bridge_name = params.get("bridge_name", "test_br0")
filter_name = params.get("filter_name", "vdsm-no-mac-spoofing")
ping_count = params.get("ping_count", "5")
ping_timeout = float(params.get("ping_timeout", "10"))
iface_name = utils_net.get_net_if(state="UP")[0]
bridge_script = NETWORK_SCRIPT + bridge_name
iface_script = NETWORK_SCRIPT + iface_name
iface_script_bk = os.path.join(data_dir.get_tmp_dir(),
"iface-%s.bk" % iface_name)
attach_interface = "yes" == params.get("attach_interface", "no")
iface_model = params.get("iface_model", "virtio")
iface_source = eval(params.get("iface_source", "{'bridge':'test_br0'}"))
iface_type = params.get("iface_type", None)
iface_target = params.get("iface_target", "br_target")
iface_alias = params.get("iface_alias", None)
hotplug = "yes" == params.get("hotplug", "no")
iface_driver = params.get("iface_driver", None)
start_vm2 = "yes" == params.get("start_vm2", "no")
create_network = "yes" == params.get("create_network", "no")
update_device = "yes" == params.get("update_with_diff_type", "no")
vms = params.get("vms").split()
if len(vms) <= 1:
test.cancel("Need two VMs to test")
else:
vm1_name = vms[0]
vm2_name = vms[1]
vm1 = env.get_vm(vm1_name)
vm2 = env.get_vm(vm2_name)
# Back up the interface script
process.run("cp %s %s" % (iface_script, iface_script_bk),
shell=True,
verbose=True)
# Back up vm xml
vm1_xml_bak = vm_xml.VMXML.new_from_dumpxml(vm1_name)
vm2_xml_bak = vm_xml.VMXML.new_from_dumpxml(vm2_name)
# Stop NetworkManager service
NM_service = service.Factory.create_service("NetworkManager")
NM_status = NM_service.status()
if not NM_status:
NM_service.start()
mac = utils_net.generate_mac_address_simple()
try:
create_bridge(bridge_name, iface_name)
define_nwfilter(filter_name)
if hotplug:
err_msgs = ("No more available PCI slots",
"No more available PCI addresses")
# delete the original interface on the vm before hot-plug
if vm1.is_alive():
vm1.destroy()
vmxml = vm_xml.VMXML.new_from_dumpxml(vm1_name)
iface_xml = vmxml.get_devices('interface')[0]
logging.debug("Delete the original interface")
vmxml.del_device(iface_xml)
vmxml.sync()
vm1.start()
# do hot-plug
if attach_interface:
logging.info("Try to hot-plug interface")
options = (
"%s %s --model %s --mac %s" %
(iface_type, iface_source['bridge'], iface_model, mac))
ret = virsh.attach_interface(vm1_name,
options,
ignore_status=True)
else:
logging.info("Try to hot-plug device")
if create_network:
create_bridge_network(bridge_name, iface_source["network"])
target = str({'dev': iface_target})
iface_alias = str({'name': iface_alias})
vm_iface_source = str(iface_source)
iface_params = {
"type": iface_type,
"source": vm_iface_source,
"filter": filter_name,
"mac": mac,
'alias': iface_alias,
'target': target,
'model': iface_model,
'driver': iface_driver
}
attach_xml = interface.Interface(iface_params['type'])
attach_xml.xml = libvirt.modify_vm_iface(
vm1_name, 'get_xml', iface_params)
ret = virsh.attach_device(vm1_name,
attach_xml.xml,
ignore_status=True,
debug=True)
if ret.exit_status:
if any([msg in ret.stderr for msg in err_msgs]):
test.error("No more pci slots, can't attach more devices")
else:
test.fail("Failed to attach-interface: %s" %
ret.stderr.strip())
else:
logging.debug("Hot-plug interface or device pass")
if update_device:
# As the interface type will change to actual type "bridge" in live xml, we need to ensure
# the update with original "network" type will not fail.
# Try to delete the nwfilter with original type in iface_params
update_xml = interface.Interface(iface_type)
iface_params_update = {
"del_filter": "yes",
"type": "network",
"source": vm_iface_source
}
update_xml.xml = libvirt.modify_vm_iface(
vm1_name, 'get_xml', iface_params_update)
ret = virsh.update_device(vm1_name,
update_xml.xml,
ignore_status=True,
debug=True)
libvirt.check_exit_status(ret)
else:
vm_iface_source = str(iface_source)
vm1_iface_params = {
"type": "bridge",
"source": vm_iface_source,
"filter": filter_name,
"mac": mac,
'driver': iface_driver,
"iface_model": iface_model
}
libvirt.modify_vm_iface(vm1_name, "update_iface", vm1_iface_params)
if vm1.is_alive():
vm1.destroy()
vm1.start()
# apply ip address as it may not be initialized
session1 = session2 = None
session1 = vm1.wait_for_serial_login()
utils_net.restart_guest_network(session1)
output = session1.cmd_output("ifconfig || ip a")
logging.debug("guest1 ip info %s" % output)
# Check guest's network function
host_ip = utils_net.get_ip_address_by_interface(bridge_name)
remote_url = params.get("remote_ip", "www.google.com")
try:
vm1_ip = utils_net.get_guest_ip_addr(session1, mac)
except Exception as errs:
test.fail("vm1 can't get IP with the new create bridge: %s" % errs)
if hotplug:
# reboot vm1 then check network function to ensure the interface still there and works fine
logging.info("reboot the vm")
virsh.reboot(vm1)
if session1 is None:
session1 = vm1.wait_for_serial_login()
ping(vm1_ip,
remote_url,
ping_count,
ping_timeout,
session=session1)
# restart libvirtd service then check the interface still works fine
libvirtd = utils_libvirtd.Libvirtd()
libvirtd.restart()
vm1.cleanup_serial_console()
vm1.create_serial_console()
session1 = vm1.wait_for_serial_login()
ping(vm1_ip,
remote_url,
ping_count,
ping_timeout,
session=session1)
logging.info(
"after reboot and restart libvirtd, the network works fine")
if iface_driver:
try:
driver_dict = eval(iface_driver)
if session1 is None:
session1 = vm1.wait_for_serial_login()
guest_iface_info = session1.cmd_output("ip l").strip()
guest_iface_name = re.findall(
r"^\d+: (\S+?)[@:].*state UP.*$", guest_iface_info,
re.MULTILINE)[0]
comb_size = driver_dict.get('queues')
rx_size = driver_dict.get('rx_queue_size')
session1.cmd_status("ethtool -L %s combined %s" %
(guest_iface_name, comb_size))
ret, outp = session1.cmd_status_output("ethtool -l %s" %
guest_iface_name)
logging.debug("ethtool cmd output:%s" % outp)
if not ret:
pre_comb = re.search(
"Pre-set maximums:[\s\S]*?Combined:.*?(\d+)",
outp).group(1)
cur_comb = re.search(
"Current hardware settings:[\s\S]*?Combined:.*?(\d+)",
outp).group(1)
if int(pre_comb) != int(comb_size) or int(
cur_comb) != int(comb_size):
test.fail(
"Fail to check the combined size: setting: %s,"
"Pre-set: %s, Current-set: %s" %
(comb_size, pre_comb, cur_comb))
else:
logging.info(
"Getting correct Pre-set and Current set value"
)
else:
test.error("ethtool list fail: %s" % outp)
# as tx_queue size is only supported for vhost-user interface, only check rx_queue size
ret1, outp1 = session1.cmd_status_output("ethtool -g %s" %
guest_iface_name)
logging.debug("guest queue size setting is %s" % outp1)
if not ret1:
pre_set = re.search(r"Pre-set maximums:\s*RX:\s*(\d+)",
outp1).group(1)
cur_set = re.search(
r"Current hardware settings:\s*RX:\s*(\d+)",
outp1).group(1)
if int(pre_set) != int(rx_size) or int(cur_set) != int(
rx_size):
test.fail("Fail to check the rx_queue_size!")
except Exception as errs:
test.fail("fail to get driver info")
# hot-unplug interface/device
if attach_interface:
ret = virsh.detach_interface(vm1_name,
"bridge",
ignore_status=True)
else:
ret = virsh.detach_device(vm1_name,
attach_xml.xml,
ignore_status=True,
debug=True)
if ret.exit_status:
test.fail("Hot-unplug interface/device fail")
else:
logging.info("hot-unplug interface/device succeed")
else:
if start_vm2:
# Start vm2 connect to the same bridge
mac2 = utils_net.generate_mac_address_simple()
vm2_iface_params = {
"type": "bridge",
"source": vm_iface_source,
"filter": filter_name,
"mac": mac2
}
libvirt.modify_vm_iface(vm2_name, "update_iface",
vm2_iface_params)
if vm2.is_alive():
vm2.destroy()
vm2.start()
# Check if vm1 and vm2 can ping each other
try:
utils_net.update_mac_ip_address(vm2, timeout=120)
vm2_ip = vm2.get_address()
except Exception as errs:
test.fail(
"vm2 can't get IP with the new create bridge: %s" %
errs)
session2 = vm2.wait_for_login()
# make sure guest has got ip address
utils_net.restart_guest_network(session2)
output2 = session2.cmd_output("ifconfig || ip a")
logging.debug("guest ip info %s" % output2)
# check 2 guests' network functions
check_net_functions(vm1_ip, ping_count, ping_timeout, session1,
host_ip, remote_url, vm2_ip)
check_net_functions(vm2_ip, ping_count, ping_timeout, session2,
host_ip, remote_url, vm1_ip)
finally:
logging.debug("Start to restore")
vm1_xml_bak.sync()
vm2_xml_bak.sync()
virsh.nwfilter_undefine(filter_name, ignore_status=True)
if libvirt.check_iface(bridge_name, "exists", "--all"):
virsh.iface_unbridge(bridge_name, timeout=60, debug=True)
if os.path.exists(iface_script_bk):
process.run("mv %s %s" % (iface_script_bk, iface_script),
shell=True,
verbose=True)
if os.path.exists(bridge_script):
process.run("rm -rf %s" % bridge_script, shell=True, verbose=True)
cmd = 'tmux -c "ip link set {1} nomaster; ip link delete {0};' \
'pkill dhclient; sleep 6; dhclient {1}"'.format(bridge_name, iface_name)
process.run(cmd, shell=True, verbose=True)
# reload network configuration
NM_service.restart()
# recover NetworkManager
if NM_status is True:
NM_service.start()
if 'network' in iface_source and iface_source[
"network"] in virsh.net_state_dict():
virsh.net_destroy(iface_source["network"], ignore_status=False)
def run(test, params, env):
"""
Test interafce xml options.
1.Prepare test environment,destroy or suspend a VM.
2.Edit xml and start the domain.
3.Perform test operation.
4.Recover test environment.
5.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
def prepare_pxe_boot():
"""
Prepare tftp server and pxe boot files
"""
pkg_list = ["syslinux", "tftp-server",
"tftp", "ipxe-roms-qemu", "wget"]
# Try to install required packages
if not utils_misc.yum_install(pkg_list):
raise error.TestNAError("Failed ot install "
"required packages")
boot_initrd = params.get("boot_initrd")
boot_vmlinuz = params.get("boot_vmlinuz")
# Download pxe boot images
utils.run("wget %s -O %s/initrd.img"
% (boot_initrd, tftp_root))
utils.run("wget %s -O %s/vmlinuz"
% (boot_vmlinuz, tftp_root))
utils.run("cp -f /usr/share/syslinux/pxelinux.0 {0};"
" mkdir -m 777 -p {0}/pxelinux.cfg".format(tftp_root))
pxe_file = "%s/pxelinux.cfg/default" % tftp_root
boot_txt = """
DISPLAY boot.txt
DEFAULT rhel
LABEL rhel
kernel vmlinuz
append initrd=initrd.img
PROMPT 1
TIMEOUT 3"""
with open(pxe_file, 'w') as p_file:
p_file.write(boot_txt)
def modify_iface_xml():
"""
Modify interface xml options
"""
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
if pxe_boot:
# Config boot console for pxe boot
osxml = vm_xml.VMOSXML()
osxml.type = vmxml.os.type
osxml.arch = vmxml.os.arch
osxml.machine = vmxml.os.machine
osxml.loader = "/usr/share/seabios/bios.bin"
osxml.bios_useserial = "yes"
osxml.bios_reboot_timeout = "-1"
osxml.boots = ['network']
del vmxml.os
vmxml.os = osxml
xml_devices = vmxml.devices
iface_index = xml_devices.index(
xml_devices.by_device_tag("interface")[0])
iface = xml_devices[iface_index]
iface_bandwidth = {}
iface_inbound = eval(iface_bandwidth_inbound)
iface_outbound = eval(iface_bandwidth_outbound)
if iface_inbound:
iface_bandwidth["inbound"] = iface_inbound
if iface_outbound:
iface_bandwidth["outbound"] = iface_outbound
if iface_bandwidth:
bandwidth = iface.new_bandwidth(**iface_bandwidth)
iface.bandwidth = bandwidth
iface_source = params.get("iface_source")
if iface_source:
source = eval(iface_source)
if source:
iface.source = source
logging.debug("New interface xml file: %s", iface)
vmxml.devices = xml_devices
vmxml.xmltreefile.write()
vmxml.sync()
def run_dnsmasq_default_test(key, value=None, exists=True):
"""
Test dnsmasq configuration.
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.conf"
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if value:
config = "%s=%s" % (key, value)
else:
config = key
if not configs.count(config):
if exists:
raise error.TestFail("Can't find %s=%s in configuration"
" file" % (key, value))
else:
if not exists:
raise error.TestFail("Found %s=%s in configuration"
" file" % (key, value))
def run_dnsmasq_addnhosts_test(hostip, hostnames):
"""
Test host ip and names configuration
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.addnhosts"
hosts_re = ".*".join(hostnames)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not re.search(r"%s.*%s" % (hostip, hosts_re), configs, re.M):
raise error.TestFail("Can't find '%s' in configuration"
" file" % hostip)
def run_dnsmasq_host_test(iface_mac, guest_ip, guest_name):
"""
Test host name and ip configuration for dnsmasq
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.hostsfile"
config = "%s,%s,%s" % (iface_mac, guest_ip, guest_name)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not configs.count(config):
raise error.TestFail("Can't find host configuration"
" in file %s" % conf_file)
def check_class_rules(ifname, rule_id, bandwidth):
"""
Check bandwidth settings via 'tc class' output
"""
cmd = "tc class show dev %s" % ifname
class_output = utils.run(cmd).stdout
logging.debug("Bandwidth class output: %s", class_output)
class_pattern = (r"class htb %s.*rate (\d+)Kbit ceil"
" (\d+)Kbit burst (\d+)(K?M?)b.*" % rule_id)
se = re.search(class_pattern, class_output, re.M)
if not se:
raise error.TestFail("Can't find outbound setting"
" for htb %s" % rule_id)
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
ceil = None
if bandwidth.has_key("floor"):
ceil = int(bandwidth["floor"]) * 8
elif bandwidth.has_key("average"):
ceil = int(bandwidth["average"]) * 8
if ceil:
assert int(se.group(1)) == ceil
if bandwidth.has_key("peak"):
assert int(se.group(2)) == int(bandwidth["peak"]) * 8
if bandwidth.has_key("burst"):
if se.group(4) == 'M':
tc_burst = int(se.group(3)) * 1024
else:
tc_burst = int(se.group(3))
assert tc_burst == int(bandwidth["burst"])
def check_filter_rules(ifname, bandwidth):
"""
Check bandwidth settings via 'tc filter' output
"""
cmd = "tc -d filter show dev %s parent ffff:" % ifname
filter_output = utils.run(cmd).stdout
logging.debug("Bandwidth filter output: %s", filter_output)
if not filter_output.count("filter protocol all pref"):
raise error.TestFail("Can't find 'protocol all' settings"
" in filter rules")
filter_pattern = ".*police.*rate (\d+)Kbit burst (\d+)Kb.*"
se = re.search(r"%s" % filter_pattern, filter_output, re.M)
if not se:
raise error.TestFail("Can't find any filter policy")
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
if bandwidth.has_key("average"):
assert int(se.group(1)) == int(bandwidth["average"]) * 8
if bandwidth.has_key("burst"):
assert int(se.group(2)) == int(bandwidth["burst"])
def run_bandwidth_test(check_net=False, check_iface=False):
"""
Test bandwidth option for network or interface by tc command.
"""
iface_inbound = eval(iface_bandwidth_inbound)
iface_outbound = eval(iface_bandwidth_outbound)
net_inbound = eval(net_bandwidth_inbound)
net_outbound = eval(net_bandwidth_outbound)
net_bridge_name = eval(net_bridge)["name"]
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
try:
if check_net and net_inbound:
# Check qdisc rules
cmd = "tc -d qdisc show dev %s" % net_bridge_name
qdisc_output = utils.run(cmd).stdout
logging.debug("Bandwidth qdisc output: %s", qdisc_output)
if not qdisc_output.count("qdisc ingress ffff:"):
raise error.TestFail("Can't find ingress setting")
check_class_rules(net_bridge_name, "1:1",
{"average": net_inbound["average"],
"peak": net_inbound["peak"]})
check_class_rules(net_bridge_name, "1:2", net_inbound)
# Check filter rules on bridge interface
if check_net and net_outbound:
check_filter_rules(net_bridge_name, net_outbound)
# Check class rules on interface inbound settings
if check_iface and iface_inbound:
check_class_rules(iface_name, "1:1",
{'average': iface_inbound['average'],
'peak': iface_inbound['peak'],
'burst': iface_inbound['burst']})
if iface_inbound.has_key("floor"):
check_class_rules(net_bridge_name, "1:3",
{'floor': iface_inbound["floor"]})
# Check filter rules on interface outbound settings
if check_iface and iface_outbound:
check_filter_rules(iface_name, iface_outbound)
except AssertionError:
utils.log_last_traceback()
raise error.TestFail("Failed to check network bandwidth")
def check_name_ip(session):
"""
Check dns resolving on guest
"""
# Check if bind-utils is installed
if not utils_misc.yum_install(['bind-utils'], session):
raise error.TestNAError("Failed to install bind-utils"
" on guest")
# Run host command to check if hostname can be resolved
if not guest_ipv4 and not guest_ipv6:
raise error.TestFail("No ip address found from parameters")
guest_ip = guest_ipv4 if guest_ipv4 else guest_ipv6
cmd = "host %s | grep %s" % (guest_name, guest_ip)
if session.cmd_status(cmd):
raise error.TestFail("Can't resolve name %s on guest" %
guest_name)
def check_ipt_rules(check_ipv4=True, check_ipv6=False):
"""
Check iptables for network/interface
"""
br_name = eval(net_bridge)["name"]
net_forward = eval(params.get("net_forward", "{}"))
net_ipv4 = params.get("net_ipv4")
net_ipv6 = params.get("net_ipv6")
ipt_rules = ("FORWARD -i {0} -o {0} -j ACCEPT".format(br_name),
"FORWARD -o %s -j REJECT --reject-with icmp" % br_name,
"FORWARD -i %s -j REJECT --reject-with icmp" % br_name)
net_dev_in = ""
net_dev_out = ""
if net_forward.has_key("dev"):
net_dev_in = " -i %s" % net_forward["dev"]
net_dev_out = " -o %s" % net_forward["dev"]
if check_ipv4:
ipv4_rules = list(ipt_rules)
ctr_rule = ""
nat_rules = []
if net_forward.has_key("mode") and net_forward["mode"] == "nat":
nat_port = eval(params.get("nat_port"))
p_start = nat_port["start"]
p_end = nat_port["end"]
ctr_rule = " -m conntrack --ctstate RELATED,ESTABLISHED"
nat_rules = ["POSTROUTING -s %s -d 224.0.0.0/24 -j RETURN" % net_ipv4,
"POSTROUTING -s %s -d 255.255.255.255/32 -j RETURN" % net_ipv4,
("POSTROUTING -s {0} ! -d {0} -p tcp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp"
" -j MASQUERADE".format(net_ipv4))]
if nat_rules:
ipv4_rules.extend(nat_rules)
if (net_ipv4 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s%s -j ACCEPT"
% (net_ipv4, net_dev_in, br_name, ctr_rule)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv4, br_name, net_dev_out))]
ipv4_rules.extend(rules)
output = utils.run("iptables-save").stdout.strip()
logging.debug("iptables: %s", output)
for ipt in ipv4_rules:
if not output.count(ipt):
raise error.TestFail("Can't find iptable rule:\n%s" % ipt)
if check_ipv6:
ipv6_rules = list(ipt_rules)
if (net_ipv6 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s -j ACCEPT"
% (net_ipv6, net_dev_in, br_name)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv6, br_name, net_dev_out))]
ipv6_rules.extend(rules)
output = utils.run("ip6tables-save").stdout.strip()
logging.debug("iptables: %s", output)
for ipt in ipv6_rules:
if not output.count(ipt):
raise error.TestFail("Can't find ipbtable rule:\n%s" % ipt)
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 10)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Can't find ip address on guest")
ping_cmd = "ping -c 5"
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ping_cmd = "ping6 -c 5"
ip_gateway = net_ipv6_address
if ip_gateway:
if utils.system("%s %s" % (ping_cmd, ip_gateway),
ignore_status=True):
raise error.TestFail("Failed to ping gateway address: %s"
% ip_gateway)
def run_guest_libvirt(session):
"""
Check guest libvirt network
"""
# Try to install required packages
if not utils_misc.yum_install(['libvirt'], session):
raise error.TestNAError("Failed ot install libvirt"
" package on guest")
result = True
# Check network state on guest
cmd = ("service libvirtd restart; virsh net-info default"
" | grep 'Active:.*no'")
if session.cmd_status(cmd):
result = False
logging.error("Default network isn't in inactive state")
# Try to start default network on guest, check error messages
if result:
cmd = "virsh net-start default"
status, output = session.cmd_status_output(cmd)
logging.debug("Run command on guest exit %s, output %s"
% (status, output))
if not status or not output.count("already in use"):
result = False
logging.error("Failed to see network messges on guest")
if session.cmd_status("rpm -e libvirt"):
logging.error("Failed to remove libvirt packages on guest")
if not result:
raise error.TestFail("Check libvirt network on guest failed")
start_error = "yes" == params.get("start_error", "no")
restart_error = "yes" == params.get("restart_error", "no")
# network specific attributes.
net_name = params.get("net_name", "default")
net_bridge = params.get("net_bridge", "{'name':'virbr0'}")
net_domain = params.get("net_domain")
net_ip_address = params.get("net_ip_address")
net_ipv6_address = params.get("net_ipv6_address")
net_dns_forward = params.get("net_dns_forward")
net_dns_txt = params.get("net_dns_txt")
net_dns_srv = params.get("net_dns_srv")
net_dns_hostip = params.get("net_dns_hostip")
net_dns_hostnames = params.get("net_dns_hostnames", "").split()
dhcp_start_ipv4 = params.get("dhcp_start_ipv4")
dhcp_end_ipv4 = params.get("dhcp_end_ipv4")
guest_name = params.get("guest_name")
guest_ipv4 = params.get("guest_ipv4")
guest_ipv6 = params.get("guest_ipv6")
tftp_root = params.get("tftp_root")
pxe_boot = "yes" == params.get("pxe_boot", "no")
net_bandwidth_inbound = params.get("net_bandwidth_inbound", "{}")
net_bandwidth_outbound = params.get("net_bandwidth_outbound", "{}")
iface_bandwidth_inbound = params.get("iface_bandwidth_inbound", "{}")
iface_bandwidth_outbound = params.get("iface_bandwidth_outbound", "{}")
multiple_guests = params.get("multiple_guests")
create_network = "yes" == params.get("create_network", "no")
serial_login = "******" == params.get("serial_login", "no")
change_iface_option = "yes" == params.get("change_iface_option", "no")
test_bridge = "yes" == params.get("test_bridge", "no")
test_dnsmasq = "yes" == params.get("test_dnsmasq", "no")
test_dhcp_range = "yes" == params.get("test_dhcp_range", "no")
test_dns_host = "yes" == params.get("test_dns_host", "no")
test_qos_bandwidth = "yes" == params.get("test_qos_bandwidth", "no")
test_qos_remove = "yes" == params.get("test_qos_remove", "no")
test_ipv4_address = "yes" == params.get("test_ipv4_address", "no")
test_ipv6_address = "yes" == params.get("test_ipv6_address", "no")
test_guest_libvirt = "yes" == params.get("test_guest_libvirt", "no")
if serial_login:
# Set serial console for serial login
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
# Set console option
vm.set_kernel_console("ttyS0", "115200")
# Shutdown here for sync fs
vm.shutdown()
else:
if vm.is_alive():
vm.destroy(gracefully=False)
# Back up xml file.
netxml_backup = NetworkXML.new_from_net_dumpxml("default")
iface_mac = vm_xml.VMXML.get_first_mac_by_name(vm_name)
params["guest_mac"] = iface_mac
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vms_list = []
# Build the xml and run test.
try:
if test_dnsmasq:
# Check the settings before modifying network xml
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed", exists=False)
run_dnsmasq_default_test("local", "//", exists=False)
if net_domain:
run_dnsmasq_default_test("domain", net_domain, exists=False)
run_dnsmasq_default_test("expand-hosts", exists=False)
# Prepare pxe boot directory
if pxe_boot:
prepare_pxe_boot()
# Edit the network xml or create a new one.
if create_network:
libvirt.create_net_xml(net_name, params)
# Edit the interface xml.
if change_iface_option:
modify_iface_xml()
if multiple_guests:
# Clone more vms for testing
for i in range(int(multiple_guests)):
guest_name = "%s_%s" % (vm_name, i)
utils_libguestfs.virt_clone_cmd(vm_name, guest_name, True)
vms_list.append(vm.clone(guest_name))
if test_bridge:
bridge = eval(net_bridge)
br_if = utils_net.Interface(bridge['name'])
if not br_if.is_up():
raise error.TestFail("Bridge interface isn't up")
if test_dnsmasq:
# Check the settings in dnsmasq config file
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed")
run_dnsmasq_default_test("local", "//")
if net_domain:
run_dnsmasq_default_test("domain", net_domain)
run_dnsmasq_default_test("expand-hosts")
if net_bridge:
bridge = eval(net_bridge)
run_dnsmasq_default_test("interface", bridge['name'])
if bridge.has_key('stp') and bridge['stp'] == 'on':
if bridge.has_key('delay'):
br_delay = float(bridge['delay'])
cmd = ("brctl showstp %s | grep 'bridge forward delay'"
% bridge['name'])
out = utils.run(cmd, ignore_status=False).stdout.strip()
logging.debug("brctl showstp output: %s", out)
pattern = (r"\s*forward delay\s+(\d+.\d+)\s+bridge"
" forward delay\s+(\d+.\d+)")
match_obj = re.search(pattern, out, re.M)
if not match_obj or len(match_obj.groups()) != 2:
raise error.TestFail("Can't see forward delay"
" messages from command")
elif (float(match_obj.groups()[0]) != br_delay or
float(match_obj.groups()[1]) != br_delay):
raise error.TestFail("Foward delay setting"
" can't take effect")
if dhcp_start_ipv4 and dhcp_end_ipv4:
run_dnsmasq_default_test("dhcp-range", "%s,%s"
% (dhcp_start_ipv4, dhcp_end_ipv4))
if guest_name and guest_ipv4:
run_dnsmasq_host_test(iface_mac, guest_ipv4, guest_name)
if test_dns_host:
if net_dns_txt:
dns_txt = eval(net_dns_txt)
run_dnsmasq_default_test("txt-record", "%s,%s" %
(dns_txt["name"],
dns_txt["value"]))
if net_dns_srv:
dns_srv = eval(net_dns_srv)
run_dnsmasq_default_test("srv-host", "_%s._%s.%s,%s,%s,%s,%s" %
(dns_srv["service"], dns_srv["protocol"],
dns_srv["domain"], dns_srv["target"],
dns_srv["port"], dns_srv["priority"],
dns_srv["weight"]))
if net_dns_hostip and net_dns_hostnames:
run_dnsmasq_addnhosts_test(net_dns_hostip, net_dns_hostnames)
# Run bandwidth test for network
if test_qos_bandwidth:
run_bandwidth_test(check_net=True)
try:
# Start the VM.
vm.start()
if start_error:
raise error.TestFail("VM started unexpectedly")
if pxe_boot:
# Just check network boot messages here
vm.serial_console.read_until_output_matches(
["Loading vmlinuz", "Loading initrd.img"],
utils_misc.strip_console_codes)
output = vm.serial_console.get_stripped_output()
logging.debug("Boot messages: %s", output)
else:
if serial_login:
session = vm.wait_for_serial_login()
else:
session = vm.wait_for_login()
if test_dhcp_range:
# First vm should have a valid ip address
utils_net.restart_guest_network(session, iface_mac)
vm_ip = utils_net.get_guest_ip_addr(session, iface_mac)
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
raise error.TestFail("Guest has invalid ip address")
# Other vms cloudn't get the ip address
for vms in vms_list:
# Start other VMs.
vms.start()
sess = vms.wait_for_serial_login()
vms_mac = vms.get_virsh_mac_address()
# restart guest network to get ip addr
utils_net.restart_guest_network(sess, vms_mac)
vms_ip = utils_net.get_guest_ip_addr(sess,
vms_mac)
if vms_ip:
# Get IP address on guest should return Null
raise error.TestFail("Guest has ip address: %s"
% vms_ip)
sess.close()
# Check dnsmasq settings if take affect in guest
if guest_ipv4:
check_name_ip(session)
# Run bandwidth test for interface
if test_qos_bandwidth:
run_bandwidth_test(check_iface=True)
if test_qos_remove:
# Remove the bandwidth settings in network xml
logging.debug("Removing network bandwidth settings...")
netxml_backup.sync()
vm.destroy(gracefully=False)
# Should fail to start vm
vm.start()
if restart_error:
raise error.TestFail("VM started unexpectedly")
if test_ipv4_address:
check_ipt_rules(check_ipv4=True)
run_ip_test(session, "ipv4")
if test_ipv6_address:
check_ipt_rules(check_ipv6=True)
run_ip_test(session, "ipv6")
if test_guest_libvirt:
run_guest_libvirt(session)
session.close()
except virt_vm.VMStartError, details:
logging.info(str(details))
if start_error or restart_error:
pass
else:
raise error.TestFail('VM Failed to start for some reason!')
finally:
# Recover VM.
if vm.is_alive():
vm.destroy(gracefully=False)
for vms in vms_list:
virsh.remove_domain(vms.name, "--remove-all-storage")
logging.info("Restoring network...")
if net_name == "default":
netxml_backup.sync()
else:
# Destroy and undefine new created network
virsh.net_destroy(net_name)
virsh.net_undefine(net_name)
vmxml_backup.sync()
def run(test, params, env):
"""
Test interafce xml options.
1.Prepare test environment,destroy or suspend a VM.
2.Edit xml and start the domain.
3.Perform test operation.
4.Recover test environment.
5.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
virsh_dargs = {'debug': True, 'ignore_status': False}
def create_iface_xml(iface_mac):
"""
Create interface xml file
"""
iface = Interface(type_name=iface_type)
source = eval(iface_source)
if iface_source:
iface.source = source
iface.model = iface_model if iface_model else "virtio"
iface.mac_address = iface_mac
driver_dict = {}
driver_host = {}
driver_guest = {}
if iface_driver:
driver_dict = eval(iface_driver)
if iface_driver_host:
driver_host = eval(iface_driver_host)
if iface_driver_guest:
driver_guest = eval(iface_driver_guest)
iface.driver = iface.new_driver(driver_attr=driver_dict,
driver_host=driver_host,
driver_guest=driver_guest)
logging.debug("Create new interface xml: %s", iface)
return iface
def modify_iface_xml(update, status_error=False):
"""
Modify interface xml options
"""
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
xml_devices = vmxml.devices
iface_index = xml_devices.index(
xml_devices.by_device_tag("interface")[0])
iface = xml_devices[iface_index]
if iface_model:
iface.model = iface_model
else:
del iface.model
if iface_type:
iface.type_name = iface_type
source = eval(iface_source)
if iface_source:
iface.source = source
else:
del iface.source
driver_dict = {}
driver_host = {}
driver_guest = {}
if iface_driver:
driver_dict = eval(iface_driver)
if iface_driver_host:
driver_host = eval(iface_driver_host)
if iface_driver_guest:
driver_guest = eval(iface_driver_guest)
iface.driver = iface.new_driver(driver_attr=driver_dict,
driver_host=driver_host,
driver_guest=driver_guest)
if iface.address:
del iface.address
logging.debug("New interface xml file: %s", iface)
if unprivileged_user:
# Create disk image for unprivileged user
disk_index = xml_devices.index(
xml_devices.by_device_tag("disk")[0])
disk_xml = xml_devices[disk_index]
logging.debug("source: %s", disk_xml.source)
disk_source = disk_xml.source.attrs["file"]
cmd = ("cp -f %s %s && chmod a+rw %s" %
(disk_source, dst_disk, dst_disk))
utils.run(cmd)
disk_xml.source = disk_xml.new_disk_source(
attrs={"file": dst_disk})
vmxml.devices = xml_devices
# Remove all channels to avoid of permission problem
channels = vmxml.get_devices(device_type="channel")
for channel in channels:
vmxml.del_device(channel)
vmxml.xmltreefile.write()
logging.debug("New VM xml: %s", vmxml)
utils.run("chmod a+rw %s" % vmxml.xml)
virsh.define(vmxml.xml, **virsh_dargs)
# Try to modify interface xml by update-device or edit xml
elif update:
iface.xmltreefile.write()
ret = virsh.update_device(vm_name, iface.xml,
ignore_status=True)
libvirt.check_exit_status(ret, status_error)
else:
vmxml.devices = xml_devices
vmxml.xmltreefile.write()
vmxml.sync()
def check_offloads_option(if_name, driver_options, session=None):
"""
Check interface offloads by ethtool output
"""
offloads = {"csum": "tx-checksumming",
"gso": "generic-segmentation-offload",
"tso4": "tcp-segmentation-offload",
"tso6": "tx-tcp6-segmentation",
"ecn": "tx-tcp-ecn-segmentation",
"ufo": "udp-fragmentation-offload"}
if session:
ret, output = session.cmd_status_output("ethtool -k %s | head"
" -18" % if_name)
else:
out = utils.run("ethtool -k %s | head -18" % if_name)
ret, output = out.exit_status, out.stdout
if ret:
raise error.TestFail("ethtool return error code")
logging.debug("ethtool output: %s", output)
for offload in driver_options.keys():
if offloads.has_key(offload):
if (output.count(offloads[offload]) and
not output.count("%s: %s" % (
offloads[offload], driver_options[offload]))):
raise error.TestFail("offloads option %s: %s isn't"
" correct in ethtool output" %
(offloads[offload],
driver_options[offload]))
def run_xml_test(iface_mac):
"""
Test for interface options in vm xml
"""
# Get the interface object according the mac address
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
iface_devices = vmxml.get_devices(device_type="interface")
iface = None
for iface_dev in iface_devices:
if iface_dev.mac_address == iface_mac:
iface = iface_dev
if not iface:
raise error.TestFail("Can't find interface with mac"
" '%s' in vm xml" % iface_mac)
driver_dict = {}
if iface_driver:
driver_dict = eval(iface_driver)
for driver_opt in driver_dict.keys():
if not driver_dict[driver_opt] == iface.driver.driver_attr[driver_opt]:
raise error.TestFail("Can't see driver option %s=%s in vm xml"
% (driver_opt, driver_dict[driver_opt]))
def run_cmdline_test(iface_mac):
"""
Test for qemu-kvm command line options
"""
cmd = ("ps -ef | grep %s | grep -v grep " % vm_name)
if test_vhost_net:
cmd += " | grep 'vhost=on'"
ret = utils.run(cmd)
if ret.exit_status:
raise error.TestFail("Can't parse qemu-kvm command line")
logging.debug("Command line %s", ret.stdout)
if iface_model == "virtio":
model_option = "device virtio-net-pci"
else:
model_option = "device rtl8139"
iface_cmdline = re.findall(r"%s,(.+),mac=%s" %
(model_option, iface_mac), ret.stdout)
if not iface_cmdline:
raise error.TestFail("Can't see %s with mac %s in command"
" line" % (model_option, iface_mac))
cmd_opt = {}
for opt in iface_cmdline[0].split(','):
tmp = opt.rsplit("=")
cmd_opt[tmp[0]] = tmp[1]
logging.debug("Command line options %s", cmd_opt)
driver_dict = {}
# Test <driver> xml options.
if iface_driver:
iface_driver_dict = eval(iface_driver)
for driver_opt in iface_driver_dict.keys():
if driver_opt == "name":
continue
elif driver_opt == "txmode":
if iface_driver_dict["txmode"] == "iothread":
driver_dict["tx"] = "bh"
else:
driver_dict["tx"] = iface_driver_dict["txmode"]
elif driver_opt == "queues":
driver_dict["mq"] = "on"
driver_dict["vectors"] = str(int(
iface_driver_dict["queues"]) * 2 + 2)
else:
driver_dict[driver_opt] = iface_driver_dict[driver_opt]
# Test <driver><host/><driver> xml options.
if iface_driver_host:
driver_dict.update(eval(iface_driver_host))
# Test <driver><guest/><driver> xml options.
if iface_driver_guest:
driver_dict.update(eval(iface_driver_guest))
for driver_opt in driver_dict.keys():
if (not cmd_opt.has_key(driver_opt) or
not cmd_opt[driver_opt] == driver_dict[driver_opt]):
raise error.TestFail("Can't see option '%s=%s' in qemu-kvm "
" command line" %
(driver_opt, driver_dict[driver_opt]))
def check_user_network(session):
"""
Check user network ip address on guest
"""
vm_ips = []
utils_net.restart_guest_network(session)
# Wait for IP address is ready
utils_misc.wait_for(lambda: utils_net.get_guest_ip_addr(session,
iface_mac_old),
10)
vm_ips.append(utils_net.get_guest_ip_addr(session,
iface_mac_old))
if attach_device:
# Get the additional interafce ip address
# Wait for IP address is ready
utils_misc.wait_for(lambda: utils_net.get_guest_ip_addr(session,
iface_mac),
10)
vm_ips.append(utils_net.get_guest_ip_addr(session,
iface_mac))
logging.debug("IP address on guest: %s", vm_ips)
if len(vm_ips) != len(set(vm_ips)):
raise error.TestFail("Duplicated IP address on guest. "
"Check bug: https://bugzilla.redhat."
"com/show_bug.cgi?id=1147238")
for vm_ip in vm_ips:
if vm_ip is None or not vm_ip.startswith("10.0.2."):
raise error.TestFail("Found wrong IP address"
"on guest")
# Check gateway address
gateway = utils_net.get_net_gateway(session.cmd_output)
if gateway != "10.0.2.2":
raise error.TestFail("The gateway on guest is not"
" right")
# Check dns server address
ns_list = utils_net.get_net_nameserver(session.cmd_output)
if "10.0.2.3" not in ns_list:
raise error.TestFail("The dns server can't be found"
" on guest")
def check_mcast_network(session):
"""
Check multicast ip address on guests
"""
src_addr = eval(iface_source)['address']
add_session = additional_vm.wait_for_serial_login()
vms_sess_dict = {vm_name: session,
additional_vm.name: add_session}
# Check mcast address on host
cmd = "netstat -g | grep %s" % src_addr
if utils.run(cmd, ignore_status=True).exit_status:
raise error.TestFail("Can't find multicast ip address"
" on host")
vms_ip_dict = {}
# Get ip address on each guest
for vms in vms_sess_dict.keys():
vm_mac = vm_xml.VMXML.get_first_mac_by_name(vms)
utils_net.restart_guest_network(vms_sess_dict[vms], vm_mac)
vm_ip = utils_net.get_guest_ip_addr(vms_sess_dict[vms],
vm_mac)
if not vm_ip:
raise error.TestFail("Can't get multicast ip"
" address on guest")
vms_ip_dict.update({vms: vm_ip})
if len(set(vms_ip_dict.values())) != len(vms_sess_dict):
raise error.TestFail("Got duplicated multicast ip address")
logging.debug("Found ips on guest: %s", vms_ip_dict)
# Run omping server on host
if not utils_misc.yum_install(["omping"]):
raise error.TestNAError("Failed to install omping"
" on host")
cmd = ("iptables -F;omping -m %s %s" %
(src_addr, "192.168.122.1 %s" %
' '.join(vms_ip_dict.values())))
# Run a backgroup job waiting for connection of client
bgjob = utils.AsyncJob(cmd)
# Run omping client on guests
for vms in vms_sess_dict.keys():
# omping should be installed first
if not utils_misc.yum_install(["omping"], vms_sess_dict[vms]):
raise error.TestNAError("Failed to install omping"
" on guest")
cmd = ("iptables -F; omping -c 5 -T 5 -m %s %s" %
(src_addr, "192.168.122.1 %s" %
vms_ip_dict[vms]))
ret, output = vms_sess_dict[vms].cmd_status_output(cmd)
logging.debug("omping ret: %s, output: %s", ret, output)
if (not output.count('multicast, xmt/rcv/%loss = 5/5/0%') or
not output.count('unicast, xmt/rcv/%loss = 5/5/0%')):
raise error.TestFail("omping failed on guest")
# Kill the backgroup job
bgjob.kill_func()
status_error = "yes" == params.get("status_error", "no")
start_error = "yes" == params.get("start_error", "no")
define_error = "yes" == params.get("define_error", "no")
unprivileged_user = params.get("unprivileged_user")
# Interface specific attributes.
iface_type = params.get("iface_type", "network")
iface_source = params.get("iface_source", "{}")
iface_driver = params.get("iface_driver")
iface_model = params.get("iface_model")
iface_driver_host = params.get("iface_driver_host")
iface_driver_guest = params.get("iface_driver_guest")
attach_device = params.get("attach_iface_device")
change_option = "yes" == params.get("change_iface_options", "no")
update_device = "yes" == params.get("update_iface_device", "no")
additional_guest = "yes" == params.get("additional_guest", "no")
serail_login = "******" == params.get("serail_login", "no")
test_option_cmd = "yes" == params.get(
"test_iface_option_cmd", "no")
test_option_xml = "yes" == params.get(
"test_iface_option_xml", "no")
test_vhost_net = "yes" == params.get(
"test_vhost_net", "no")
test_option_offloads = "yes" == params.get(
"test_option_offloads", "no")
test_iface_user = "******" == params.get(
"test_iface_user", "no")
test_iface_mcast = "yes" == params.get(
"test_iface_mcast", "no")
if iface_driver_host or iface_driver_guest:
if not libvirt_version.version_compare(1, 2, 8):
raise error.TestNAError("Offloading options not supported "
" in this libvirt version")
if unprivileged_user:
virsh_dargs["unprivileged_user"] = unprivileged_user
# Create unprivileged user if needed
cmd = ("grep {0} /etc/passwd || "
"useradd {0}".format(unprivileged_user))
utils.run(cmd)
# Need another disk image for unprivileged user to access
dst_disk = "/tmp/%s.img" % unprivileged_user
if serail_login:
# Set serial console for serial login
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
# Set console option
vm.set_kernel_console("ttyS0", "115200")
# Shutdown here for sync fs
vm.shutdown()
else:
if vm.is_alive():
vm.destroy(gracefully=False)
# Back up xml file.
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
iface_mac_old = vm_xml.VMXML.get_first_mac_by_name(vm_name)
# iface_mac will update if attach a new interface
iface_mac = iface_mac_old
# Additional vm for test
additional_vm = None
try:
# Build the xml and run test.
try:
# Edit the interface xml.
if change_option:
modify_iface_xml(update=False)
# Check vhost driver.
if test_vhost_net:
if not os.path.exists("/dev/vhost-net"):
raise error.TestError("Can't find vhost-net dev")
cmd = ("modprobe -r {0}; lsmod | "
"grep {0}".format("vhost_net"))
if not utils.system(cmd, ignore_status=True):
raise error.TestError("Can't remove vhost_net driver")
# Attach a interface when vm is shutoff
if attach_device == 'config':
iface_mac = utils_net.generate_mac_address_simple()
iface_xml_obj = create_iface_xml(iface_mac)
iface_xml_obj.xmltreefile.write()
ret = virsh.attach_device(vm_name, iface_xml_obj.xml,
flagstr="--config",
ignore_status=True)
libvirt.check_exit_status(ret)
# Clone additional vm
if additional_guest:
guest_name = "%s_%s" % (vm_name, '1')
# Clone additional guest
utils_libguestfs.virt_clone_cmd(vm_name, guest_name, True)
additional_vm = vm.clone(guest_name)
additional_vm.start()
#additional_vm.wait_for_login()
# Start the VM.
if unprivileged_user:
virsh.start(vm_name, **virsh_dargs)
cmd = ("su - %s -c 'virsh console %s'"
% (unprivileged_user, vm_name))
session = aexpect.ShellSession(cmd)
session.sendline()
remote.handle_prompts(session, params.get("username"),
params.get("password"), "[\#\$]", 30)
utils_net.restart_guest_network(session)
# Get ip address on guest
if not utils_net.get_guest_ip_addr(session, iface_mac):
raise error.TestError("Can't get ip address on guest")
else:
# Will raise VMStartError exception if start fails
vm.start()
if serail_login:
session = vm.wait_for_serial_login()
else:
session = vm.wait_for_login()
if start_error:
raise error.TestFail("VM started unexpectedly")
if test_vhost_net:
if utils.system("lsmod | grep vhost_net", ignore_status=True):
raise error.TestFail("vhost_net module can't be"
" loaded automatically")
# Attach a interface when vm is running
if attach_device == 'live':
iface_mac = utils_net.generate_mac_address_simple()
iface_xml_obj = create_iface_xml(iface_mac)
iface_xml_obj.xmltreefile.write()
ret = virsh.attach_device(vm_name, iface_xml_obj.xml,
flagstr="--live",
ignore_status=True)
libvirt.check_exit_status(ret)
# Need sleep here for attachment take effect
time.sleep(5)
# Update a interface options
if update_device:
modify_iface_xml(update=True, status_error=status_error)
# Run tests for qemu-kvm command line options
if test_option_cmd:
run_cmdline_test(iface_mac)
# Run tests for vm xml
if test_option_xml:
run_xml_test(iface_mac)
# Run tests for offloads options
if test_option_offloads:
if iface_driver_host:
ifname_guest = utils_net.get_linux_ifname(session, iface_mac)
check_offloads_option(ifname_guest,
eval(iface_driver_host), session)
if iface_driver_guest:
ifname_host = libvirt.get_ifname_host(vm_name, iface_mac)
check_offloads_option(ifname_host, eval(iface_driver_guest))
if test_iface_user:
# Test user type network
check_user_network(session)
if test_iface_mcast:
# Test mcast type network
check_mcast_network(session)
# Detach hot/cold-plugged interface at last
if attach_device:
ret = virsh.detach_device(vm_name, iface_xml_obj.xml,
flagstr="", ignore_status=True)
libvirt.check_exit_status(ret)
session.close()
except virt_vm.VMStartError, e:
logging.info(str(e))
if start_error:
pass
else:
raise error.TestFail('VM Failed to start for some reason!')
except xcepts.LibvirtXMLError, e:
logging.info(str(e))
if define_error:
pass
else:
raise error.TestFail("Failed to define VM")
def run(test, params, env):
"""
Test interafce xml options.
1.Prepare test environment,destroy or suspend a VM.
2.Edit xml and start the domain.
3.Perform test operation.
4.Recover test environment.
5.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
def prepare_pxe_boot():
"""
Prepare tftp server and pxe boot files
"""
pkg_list = ["syslinux", "tftp-server",
"tftp", "ipxe-roms-qemu", "wget"]
# Try to install required packages
if not utils_package.package_install(pkg_list):
test.error("Failed ot install required packages")
boot_initrd = params.get("boot_initrd", "EXAMPLE_INITRD")
boot_vmlinuz = params.get("boot_vmlinuz", "EXAMPLE_VMLINUZ")
if boot_initrd.count("EXAMPLE") or boot_vmlinuz.count("EXAMPLE"):
test.cancel("Please provide initrd/vmlinuz URL")
# Download pxe boot images
process.system("wget %s -O %s/initrd.img" % (boot_initrd, tftp_root))
process.system("wget %s -O %s/vmlinuz" % (boot_vmlinuz, tftp_root))
process.system("cp -f /usr/share/syslinux/pxelinux.0 {0};"
" mkdir -m 777 -p {0}/pxelinux.cfg".format(tftp_root), shell=True)
pxe_file = "%s/pxelinux.cfg/default" % tftp_root
boot_txt = """
DISPLAY boot.txt
DEFAULT rhel
LABEL rhel
kernel vmlinuz
append initrd=initrd.img
PROMPT 1
TIMEOUT 3"""
with open(pxe_file, 'w') as p_file:
p_file.write(boot_txt)
def modify_iface_xml():
"""
Modify interface xml options
"""
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
if pxe_boot:
# Config boot console for pxe boot
osxml = vm_xml.VMOSXML()
osxml.type = vmxml.os.type
osxml.arch = vmxml.os.arch
osxml.machine = vmxml.os.machine
osxml.loader = "/usr/share/seabios/bios.bin"
osxml.bios_useserial = "yes"
osxml.bios_reboot_timeout = "-1"
osxml.boots = ['network']
del vmxml.os
vmxml.os = osxml
xml_devices = vmxml.devices
iface_index = xml_devices.index(
xml_devices.by_device_tag("interface")[0])
iface = xml_devices[iface_index]
iface_bandwidth = {}
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
if iface_inbound:
iface_bandwidth["inbound"] = iface_inbound
if iface_outbound:
iface_bandwidth["outbound"] = iface_outbound
if iface_bandwidth:
bandwidth = iface.new_bandwidth(**iface_bandwidth)
iface.bandwidth = bandwidth
iface_type = params.get("iface_type", "network")
iface.type_name = iface_type
source = ast.literal_eval(iface_source)
if not source:
source = {"network": "default"}
net_ifs = utils_net.get_net_if(state="UP")
# Check source device is valid or not,
# if it's not in host interface list, try to set
# source device to first active interface of host
if (iface.type_name == "direct" and
source.has_key('dev') and
source['dev'] not in net_ifs):
logging.warn("Source device %s is not a interface"
" of host, reset to %s",
source['dev'], net_ifs[0])
source['dev'] = net_ifs[0]
del iface.source
iface.source = source
iface_model = params.get("iface_model", "virtio")
iface.model = iface_model
logging.debug("New interface xml file: %s", iface)
vmxml.devices = xml_devices
vmxml.xmltreefile.write()
vmxml.sync()
def run_dnsmasq_default_test(key, value=None, exists=True):
"""
Test dnsmasq configuration.
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.conf"
if not os.path.exists(conf_file):
test.cancel("Can't find default.conf file")
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if value:
config = "%s=%s" % (key, value)
else:
config = key
if not configs.count(config):
if exists:
test.fail("Can't find %s=%s in configuration file" % (key, value))
else:
if not exists:
test.fail("Found %s=%s in configuration file" % (key, value))
def run_dnsmasq_addnhosts_test(hostip, hostnames):
"""
Test host ip and names configuration
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.addnhosts"
hosts_re = ".*".join(hostnames)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not re.search(r"%s.*%s" % (hostip, hosts_re), configs, re.M):
test.fail("Can't find '%s' in configuration file" % hostip)
def run_dnsmasq_host_test(iface_mac, guest_ip, guest_name):
"""
Test host name and ip configuration for dnsmasq
"""
conf_file = "/var/lib/libvirt/dnsmasq/default.hostsfile"
config = "%s,%s,%s" % (iface_mac, guest_ip, guest_name)
configs = ""
with open(conf_file) as f:
configs = f.read()
logging.debug("configs in file %s: %s", conf_file, configs)
if not configs.count(config):
test.fail("Can't find host configuration in file %s" % conf_file)
def check_class_rules(ifname, rule_id, bandwidth):
"""
Check bandwidth settings via 'tc class' output
"""
cmd = "tc class show dev %s" % ifname
class_output = process.system_output(cmd)
logging.debug("Bandwidth class output: %s", class_output)
class_pattern = (r"class htb %s.*rate (\d+)Kbit ceil"
" (\d+)Kbit burst (\d+)(K?M?)b.*" % rule_id)
se = re.search(class_pattern, class_output, re.M)
if not se:
test.fail("Can't find outbound setting for htb %s" % rule_id)
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
ceil = None
if bandwidth.has_key("floor"):
ceil = int(bandwidth["floor"]) * 8
elif bandwidth.has_key("average"):
ceil = int(bandwidth["average"]) * 8
if ceil:
assert int(se.group(1)) == ceil
if bandwidth.has_key("peak"):
assert int(se.group(2)) == int(bandwidth["peak"]) * 8
if bandwidth.has_key("burst"):
if se.group(4) == 'M':
tc_burst = int(se.group(3)) * 1024
else:
tc_burst = int(se.group(3))
assert tc_burst == int(bandwidth["burst"])
def check_filter_rules(ifname, bandwidth):
"""
Check bandwidth settings via 'tc filter' output
"""
cmd = "tc -d filter show dev %s parent ffff:" % ifname
filter_output = process.system_output(cmd)
logging.debug("Bandwidth filter output: %s", filter_output)
if not filter_output.count("filter protocol all pref"):
test.fail("Can't find 'protocol all' settings in filter rules")
filter_pattern = ".*police.*rate (\d+)Kbit burst (\d+)(K?M?)b.*"
se = re.search(r"%s" % filter_pattern, filter_output, re.M)
if not se:
test.fail("Can't find any filter policy")
logging.debug("bandwidth from tc output:%s" % str(se.groups()))
logging.debug("bandwidth from setting:%s" % str(bandwidth))
if bandwidth.has_key("average"):
assert int(se.group(1)) == int(bandwidth["average"]) * 8
if bandwidth.has_key("burst"):
if se.group(3) == 'M':
tc_burst = int(se.group(2)) * 1024
else:
tc_burst = int(se.group(2))
assert tc_burst == int(bandwidth["burst"])
def check_host_routes():
"""
Check network routes on host
"""
for rt in routes:
try:
route = ast.literal_eval(rt)
addr = "%s/%s" % (route["address"], route["prefix"])
cmd = "ip route list %s" % addr
if route.has_key("family") and route["family"] == "ipv6":
cmd = "ip -6 route list %s" % addr
output = process.system_output(cmd)
match_obj = re.search(r"via (\S+).*metric (\d+)", output)
if match_obj:
via_addr = match_obj.group(1)
metric = match_obj.group(2)
logging.debug("via address %s for %s, matric is %s"
% (via_addr, addr, metric))
assert via_addr == route["gateway"]
if route.has_key("metric"):
assert metric == route["metric"]
except KeyError:
pass
def run_bandwidth_test(check_net=False, check_iface=False):
"""
Test bandwidth option for network or interface by tc command.
"""
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
net_inbound = ast.literal_eval(net_bandwidth_inbound)
net_outbound = ast.literal_eval(net_bandwidth_outbound)
net_bridge_name = ast.literal_eval(net_bridge)["name"]
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
try:
if check_net and net_inbound:
# Check qdisc rules
cmd = "tc -d qdisc show dev %s" % net_bridge_name
qdisc_output = process.system_output(cmd)
logging.debug("Bandwidth qdisc output: %s", qdisc_output)
if not qdisc_output.count("qdisc ingress ffff:"):
test.fail("Can't find ingress setting")
check_class_rules(net_bridge_name, "1:1",
{"average": net_inbound["average"],
"peak": net_inbound["peak"]})
check_class_rules(net_bridge_name, "1:2", net_inbound)
# Check filter rules on bridge interface
if check_net and net_outbound:
check_filter_rules(net_bridge_name, net_outbound)
# Check class rules on interface inbound settings
if check_iface and iface_inbound:
check_class_rules(iface_name, "1:1",
{'average': iface_inbound['average'],
'peak': iface_inbound['peak'],
'burst': iface_inbound['burst']})
if iface_inbound.has_key("floor"):
if not libvirt_version.version_compare(1, 0, 1):
test.cancel("Not supported Qos options 'floor'")
check_class_rules(net_bridge_name, "1:3",
{'floor': iface_inbound["floor"]})
# Check filter rules on interface outbound settings
if check_iface and iface_outbound:
check_filter_rules(iface_name, iface_outbound)
except AssertionError:
stacktrace.log_exc_info(sys.exc_info())
test.fail("Failed to check network bandwidth")
def check_name_ip(session):
"""
Check dns resolving on guest
"""
# Check if bind-utils is installed
if not utils_package.package_install(['bind-utils'], session):
test.error("Failed to install bind-utils on guest")
# Run host command to check if hostname can be resolved
if not guest_ipv4 and not guest_ipv6:
test.fail("No ip address found from parameters")
guest_ip = guest_ipv4 if guest_ipv4 else guest_ipv6
cmd = "host %s | grep %s" % (guest_name, guest_ip)
if session.cmd_status(cmd):
test.fail("Can't resolve name %s on guest" % guest_name)
def check_ipt_rules(check_ipv4=True, check_ipv6=False):
"""
Check iptables for network/interface
"""
br_name = ast.literal_eval(net_bridge)["name"]
net_forward = ast.literal_eval(params.get("net_forward", "{}"))
net_ipv4 = params.get("net_ipv4")
net_ipv6 = params.get("net_ipv6")
ipt_rules = ("FORWARD -i {0} -o {0} -j ACCEPT".format(br_name),
"FORWARD -o %s -j REJECT --reject-with icmp" % br_name,
"FORWARD -i %s -j REJECT --reject-with icmp" % br_name)
net_dev_in = ""
net_dev_out = ""
if net_forward.has_key("dev"):
net_dev_in = " -i %s" % net_forward["dev"]
net_dev_out = " -o %s" % net_forward["dev"]
if check_ipv4:
ipv4_rules = list(ipt_rules)
ctr_rule = ""
nat_rules = []
if net_forward.has_key("mode") and net_forward["mode"] == "nat":
nat_port = ast.literal_eval(params.get("nat_port"))
p_start = nat_port["start"]
p_end = nat_port["end"]
ctr_rule = " -m .* RELATED,ESTABLISHED"
nat_rules = [("POSTROUTING -s {0} ! -d {0} -p tcp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp -j MASQUERADE"
" --to-ports {1}-{2}".format(net_ipv4, p_start, p_end)),
("POSTROUTING -s {0} ! -d {0} -p udp"
" -j MASQUERADE".format(net_ipv4))]
if nat_rules:
ipv4_rules.extend(nat_rules)
if (net_ipv4 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s%s -j ACCEPT"
% (net_ipv4, net_dev_in, br_name, ctr_rule)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv4, br_name, net_dev_out))]
ipv4_rules.extend(rules)
output = process.system_output('iptables-save')
logging.debug("iptables: %s", output)
for ipt in ipv4_rules:
if not re.findall(r"%s" % ipt, output, re.M):
test.fail("Can't find iptable rule:\n%s" % ipt)
if check_ipv6:
ipv6_rules = list(ipt_rules)
if (net_ipv6 and net_forward.has_key("mode") and
net_forward["mode"] in ["nat", "route"]):
rules = [("FORWARD -d %s%s -o %s -j ACCEPT"
% (net_ipv6, net_dev_in, br_name)),
("FORWARD -s %s -i %s%s -j ACCEPT"
% (net_ipv6, br_name, net_dev_out))]
ipv6_rules.extend(rules)
output = process.system_output("ip6tables-save")
logging.debug("iptables: %s", output)
for ipt in ipv6_rules:
if not output.count(ipt):
test.fail("Can't find ipbtable rule:\n%s" % ipt)
def run_ip_test(session, ip_ver):
"""
Check iptables on host and ipv6 address on guest
"""
if ip_ver == "ipv6":
# Clean up iptables rules for guest to get ipv6 address
session.cmd_status("ip6tables -F")
# It may take some time to get the ip address
def get_ip_func():
return utils_net.get_guest_ip_addr(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
if not get_ip_func():
utils_net.restart_guest_network(session, iface_mac,
ip_version=ip_ver)
utils_misc.wait_for(get_ip_func, 5)
vm_ip = get_ip_func()
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip:
test.fail("Can't find ip address on guest")
ip_gateway = net_ip_address
if ip_ver == "ipv6":
ip_gateway = net_ipv6_address
# Cleanup ip6talbes on host for ping6 test
process.system("ip6tables -F")
if ip_gateway and not routes:
ping_s, _ = ping(dest=ip_gateway, count=5,
timeout=10, session=session)
if ping_s:
test.fail("Failed to ping gateway address: %s" % ip_gateway)
def run_guest_libvirt(session):
"""
Check guest libvirt network
"""
# Try to install required packages
if not utils_package.package_install(['libvirt'], session):
test.error("Failed ot install libvirt package on guest")
# Try to load tun module first
session.cmd("lsmod | grep tun || modprobe tun")
# Check network state on guest
cmd = ("service libvirtd restart; virsh net-info default"
" | grep 'Active:.*yes'")
if session.cmd_status(cmd):
test.fail("'default' network isn't in active state")
# Try to destroy&start default network on guest
for opt in ['net-destroy', 'net-start']:
cmd = "virsh %s default" % opt
status, output = session.cmd_status_output(cmd)
logging.debug("Run %s on guest exit %s, output %s"
% (cmd, status, output))
if status:
test.fail(output)
if not utils_package.package_remove("libvirt*", session):
test.error("Failed to remove libvirt packages on guest")
start_error = "yes" == params.get("start_error", "no")
define_error = "yes" == params.get("define_error", "no")
restart_error = "yes" == params.get("restart_error", "no")
# network specific attributes.
net_name = params.get("net_name", "default")
net_bridge = params.get("net_bridge", "{'name':'virbr0'}")
net_domain = params.get("net_domain")
net_ip_address = params.get("net_ip_address")
net_ipv6_address = params.get("net_ipv6_address")
net_dns_forward = params.get("net_dns_forward")
net_dns_txt = params.get("net_dns_txt")
net_dns_srv = params.get("net_dns_srv")
net_dns_hostip = params.get("net_dns_hostip")
net_dns_hostnames = params.get("net_dns_hostnames", "").split()
dhcp_start_ipv4 = params.get("dhcp_start_ipv4")
dhcp_end_ipv4 = params.get("dhcp_end_ipv4")
guest_name = params.get("guest_name")
guest_ipv4 = params.get("guest_ipv4")
guest_ipv6 = params.get("guest_ipv6")
tftp_root = params.get("tftp_root")
pxe_boot = "yes" == params.get("pxe_boot", "no")
routes = params.get("routes", "").split()
net_bandwidth_inbound = params.get("net_bandwidth_inbound", "{}")
net_bandwidth_outbound = params.get("net_bandwidth_outbound", "{}")
iface_bandwidth_inbound = params.get("iface_bandwidth_inbound", "{}")
iface_bandwidth_outbound = params.get("iface_bandwidth_outbound", "{}")
iface_num = params.get("iface_num", "1")
iface_source = params.get("iface_source", "{}")
multiple_guests = params.get("multiple_guests")
create_network = "yes" == params.get("create_network", "no")
attach_iface = "yes" == params.get("attach_iface", "no")
serial_login = "******" == params.get("serial_login", "no")
change_iface_option = "yes" == params.get("change_iface_option", "no")
test_bridge = "yes" == params.get("test_bridge", "no")
test_dnsmasq = "yes" == params.get("test_dnsmasq", "no")
test_dhcp_range = "yes" == params.get("test_dhcp_range", "no")
test_dns_host = "yes" == params.get("test_dns_host", "no")
test_qos_bandwidth = "yes" == params.get("test_qos_bandwidth", "no")
test_pg_bandwidth = "yes" == params.get("test_portgroup_bandwidth", "no")
test_qos_remove = "yes" == params.get("test_qos_remove", "no")
test_ipv4_address = "yes" == params.get("test_ipv4_address", "no")
test_ipv6_address = "yes" == params.get("test_ipv6_address", "no")
test_guest_libvirt = "yes" == params.get("test_guest_libvirt", "no")
username = params.get("username")
password = params.get("password")
# Destroy VM first
if vm.is_alive():
vm.destroy(gracefully=False)
# Back up xml file.
netxml_backup = NetworkXML.new_from_net_dumpxml("default")
iface_mac = vm_xml.VMXML.get_first_mac_by_name(vm_name)
params["guest_mac"] = iface_mac
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vms_list = []
if "floor" in ast.literal_eval(iface_bandwidth_inbound):
if not libvirt_version.version_compare(1, 0, 1):
test.cancel("Not supported Qos options 'floor'")
# Enabling IPv6 forwarding with RA routes without accept_ra set to 2
# is likely to cause routes loss
sysctl_cmd = 'sysctl net.ipv6.conf.all.accept_ra'
original_accept_ra = process.system_output(sysctl_cmd + ' -n')
if test_ipv6_address and original_accept_ra != '2':
process.system(sysctl_cmd + '=2')
# Build the xml and run test.
try:
if test_dnsmasq:
# Check the settings before modifying network xml
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed", exists=False)
run_dnsmasq_default_test("local", "//", exists=False)
if net_domain:
run_dnsmasq_default_test("domain", net_domain, exists=False)
run_dnsmasq_default_test("expand-hosts", exists=False)
# Prepare pxe boot directory
if pxe_boot:
prepare_pxe_boot()
# Edit the network xml or create a new one.
if create_network:
net_ifs = utils_net.get_net_if(state="UP")
# Check forward device is valid or not,
# if it's not in host interface list, try to set
# forward device to first active interface of host
forward = ast.literal_eval(params.get("net_forward",
"{}"))
if (forward.has_key('mode') and forward['mode'] in
['passthrough', 'private', 'bridge', 'macvtap'] and
forward.has_key('dev') and
forward['dev'] not in net_ifs):
logging.warn("Forward device %s is not a interface"
" of host, reset to %s",
forward['dev'], net_ifs[0])
forward['dev'] = net_ifs[0]
params["net_forward"] = str(forward)
forward_iface = params.get("forward_iface")
if forward_iface:
interface = [x for x in forward_iface.split()]
# The guest will use first interface of the list,
# check if it's valid or not, if it's not in host
# interface list, try to set forward interface to
# first active interface of host.
if interface[0] not in net_ifs:
logging.warn("Forward interface %s is not a "
" interface of host, reset to %s",
interface[0], net_ifs[0])
interface[0] = net_ifs[0]
params["forward_iface"] = " ".join(interface)
netxml = libvirt.create_net_xml(net_name, params)
try:
netxml.sync()
except xcepts.LibvirtXMLError, details:
logging.info(str(details))
if define_error:
pass
else:
test.fail("Failed to define network")
# Edit the interface xml.
if change_iface_option:
modify_iface_xml()
# Attach interface if needed
if attach_iface:
iface_type = params.get("iface_type", "network")
iface_model = params.get("iface_model", "virtio")
for i in range(int(iface_num)):
logging.info("Try to attach interface loop %s" % i)
options = ("%s %s --model %s --config" %
(iface_type, net_name, iface_model))
ret = virsh.attach_interface(vm_name, options,
ignore_status=True)
if ret.exit_status:
logging.error("Command output %s" %
ret.stdout.strip())
test.fail("Failed to attach-interface")
if multiple_guests:
# Clone more vms for testing
for i in range(int(multiple_guests)):
guest_name = "%s_%s" % (vm_name, i)
timeout = params.get("clone_timeout", 360)
utils_libguestfs.virt_clone_cmd(vm_name, guest_name,
True, timeout=timeout)
vms_list.append(vm.clone(guest_name))
if test_bridge:
bridge = ast.literal_eval(net_bridge)
br_if = utils_net.Interface(bridge['name'])
if not br_if.is_up():
test.fail("Bridge interface isn't up")
if test_dnsmasq:
# Check the settings in dnsmasq config file
if net_dns_forward == "no":
run_dnsmasq_default_test("domain-needed")
run_dnsmasq_default_test("local", "//")
if net_domain:
run_dnsmasq_default_test("domain", net_domain)
run_dnsmasq_default_test("expand-hosts")
if net_bridge:
bridge = ast.literal_eval(net_bridge)
run_dnsmasq_default_test("interface", bridge['name'])
if bridge.has_key('stp') and bridge['stp'] == 'on':
if bridge.has_key('delay'):
br_delay = float(bridge['delay'])
cmd = ("brctl showstp %s | grep 'bridge forward delay'"
% bridge['name'])
out = process.system_output(
cmd, shell=True, ignore_status=False)
logging.debug("brctl showstp output: %s", out)
pattern = (r"\s*forward delay\s+(\d+.\d+)\s+bridge"
" forward delay\s+(\d+.\d+)")
match_obj = re.search(pattern, out, re.M)
if not match_obj or len(match_obj.groups()) != 2:
test.fail("Can't see forward delay messages from command")
elif (float(match_obj.groups()[0]) != br_delay or
float(match_obj.groups()[1]) != br_delay):
test.fail("Foward delay setting can't take effect")
if dhcp_start_ipv4 and dhcp_end_ipv4:
run_dnsmasq_default_test("dhcp-range", "%s,%s"
% (dhcp_start_ipv4, dhcp_end_ipv4))
if guest_name and guest_ipv4:
run_dnsmasq_host_test(iface_mac, guest_ipv4, guest_name)
if test_dns_host:
if net_dns_txt:
dns_txt = ast.literal_eval(net_dns_txt)
run_dnsmasq_default_test("txt-record", "%s,%s" %
(dns_txt["name"],
dns_txt["value"]))
if net_dns_srv:
dns_srv = ast.literal_eval(net_dns_srv)
run_dnsmasq_default_test("srv-host", "_%s._%s.%s,%s,%s,%s,%s" %
(dns_srv["service"], dns_srv["protocol"],
dns_srv["domain"], dns_srv["target"],
dns_srv["port"], dns_srv["priority"],
dns_srv["weight"]))
if net_dns_hostip and net_dns_hostnames:
run_dnsmasq_addnhosts_test(net_dns_hostip, net_dns_hostnames)
# Run bandwidth test for network
if test_qos_bandwidth:
run_bandwidth_test(check_net=True)
# Check routes if needed
if routes:
check_host_routes()
try:
# Start the VM.
vm.start()
if start_error:
test.fail("VM started unexpectedly")
if pxe_boot:
# Just check network boot messages here
vm.serial_console.read_until_output_matches(
["Loading vmlinuz", "Loading initrd.img"],
utils_misc.strip_console_codes)
output = vm.serial_console.get_stripped_output()
logging.debug("Boot messages: %s", output)
else:
if serial_login:
session = vm.wait_for_serial_login(username=username,
password=password)
else:
session = vm.wait_for_login()
if test_dhcp_range:
dhcp_range = int(params.get("dhcp_range", "252"))
utils_net.restart_guest_network(session, iface_mac)
vm_ip = utils_net.get_guest_ip_addr(session, iface_mac)
logging.debug("Guest has ip: %s", vm_ip)
if not vm_ip and dhcp_range:
test.fail("Guest has invalid ip address")
elif vm_ip and not dhcp_range:
test.fail("Guest has ip address: %s" % vm_ip)
dhcp_range = dhcp_range - 1
for vms in vms_list:
# Start other VMs.
vms.start()
sess = vms.wait_for_serial_login()
vms_mac = vms.get_virsh_mac_address()
# restart guest network to get ip addr
utils_net.restart_guest_network(sess, vms_mac)
vms_ip = utils_net.get_guest_ip_addr(sess,
vms_mac)
if not vms_ip and dhcp_range:
test.fail("Guest has invalid ip address")
elif vms_ip and not dhcp_range:
# Get IP address on guest should return Null
# if it exceeds the dhcp range
test.fail("Guest has ip address: %s" % vms_ip)
dhcp_range = dhcp_range - 1
if vms_ip:
ping_s, _ = ping(dest=vm_ip, count=5,
timeout=10, session=sess)
if ping_s:
test.fail("Failed to ping, src: %s, "
"dst: %s" % (vms_ip, vm_ip))
sess.close()
# Check dnsmasq settings if take affect in guest
if guest_ipv4:
check_name_ip(session)
# Run bandwidth test for interface
if test_qos_bandwidth:
run_bandwidth_test(check_iface=True)
# Run bandwidth test for portgroup
if test_pg_bandwidth:
pg_bandwidth_inbound = params.get(
"portgroup_bandwidth_inbound", "").split()
pg_bandwidth_outbound = params.get(
"portgroup_bandwidth_outbound", "").split()
pg_name = params.get("portgroup_name", "").split()
pg_default = params.get("portgroup_default", "").split()
iface_inbound = ast.literal_eval(iface_bandwidth_inbound)
iface_outbound = ast.literal_eval(iface_bandwidth_outbound)
iface_name = libvirt.get_ifname_host(vm_name, iface_mac)
if_source = ast.literal_eval(iface_source)
if if_source.has_key("portgroup"):
pg = if_source["portgroup"]
else:
pg = "default"
for (name, df, bw_ib, bw_ob) in zip(pg_name, pg_default,
pg_bandwidth_inbound,
pg_bandwidth_outbound):
if pg == name:
inbound = ast.literal_eval(bw_ib)
outbound = ast.literal_eval(bw_ob)
elif pg == "default" and df == "yes":
inbound = ast.literal_eval(bw_ib)
outbound = ast.literal_eval(bw_ob)
else:
continue
# Interface bandwidth settings will
# overwriting portgroup settings
if iface_inbound:
inbound = iface_inbound
if iface_outbound:
outbound = iface_outbound
check_class_rules(iface_name, "1:1", inbound)
check_filter_rules(iface_name, outbound)
if test_qos_remove:
# Remove the bandwidth settings in network xml
logging.debug("Removing network bandwidth settings...")
netxml_backup.sync()
vm.destroy(gracefully=False)
# Should fail to start vm
vm.start()
if restart_error:
test.fail("VM started unexpectedly")
if test_ipv6_address:
check_ipt_rules(check_ipv6=True)
run_ip_test(session, "ipv6")
if test_ipv4_address:
check_ipt_rules(check_ipv4=True)
run_ip_test(session, "ipv4")
if test_guest_libvirt:
run_guest_libvirt(session)
session.close()
except virt_vm.VMStartError as details:
logging.info(str(details))
if not (start_error or restart_error):
test.fail('VM failed to start:\n%s' % details)