def __init__(self, node='compute'):
"""
:param node: on computer node or network node
"""
self.node = node
self.br_int = Bridge('br-int')
self.nss = NameSpaces()
def __init__(self, node='compute'):
"""
:param node: on computer node or network node
"""
self.node = node
self.br_int = Bridge('br-int')
self.nss = NameSpaces()
def br_exists(bridge):
"""
Return True of False of a bridge's existence.
"""
if isinstance(bridge, str):
return Bridge(bridge).exists()
else:
return False
def br_dump(name):
"""
Dump the port information of a given bridges.
"""
flows = Bridge(name).get_flows()
debug('br_dump: len flows=%u\n' % len(flows))
if flows:
Flow.banner_output()
for f in flows:
f.fmt_output()
def br_getports(bridge):
"""
Return a dict of the ports (port, addr, tag, type) on the bridge, looks like
{
'qvoxxx':{
'port':2,
'addr':08:91:ff:ff:f3,
'vlan':1,
'type':internal,
}
}
"""
if isinstance(bridge, str):
return Bridge(bridge).get_ports()
else:
return {}
def br_show(name):
"""
Show information of a given bridges.
"""
ovs_ports = Bridge(name).get_ports()
if not ovs_ports:
return
neutron_ports = neutron_handler.get_neutron_ports()
debug('get neutron_ports\n')
content = []
mac_ip_show = False
for intf in ovs_ports: # e.g., qvo-xxx, int-br-eth0, qr-xxx, tapxxx
port, tag, intf_type = \
ovs_ports[intf]['port'], ovs_ports[intf]['vlan'], ovs_ports[
intf]['type']
if neutron_ports and intf[3:] in neutron_ports:
p = neutron_ports[intf[3:]]
vm_ips = ','.join(
map(lambda x: x.get('ip_address'), p['fixed_ips']))
vm_mac = p.get('mac_address')
mac_ip_show = True
else:
vm_ips, vm_mac = '', ''
content.append((intf, port, tag, intf_type, vm_ips, vm_mac))
# output('%-20s%-8s%-16s%-24s%-8s\n' %(intf,port,vmIP,vmMac,tag))
content.sort(key=lambda x: x[1]) # sort by port
content.sort(key=lambda x: x[4]) # sort by vm_ip
content.sort(key=lambda x: x[3]) # sort by type
output(
color_str('%-20s%-12s%-8s%-12s' % ('Intf', 'Port', 'Vlan', 'Type'),
'r'))
if mac_ip_show:
output(color_str('%-16s%-24s\n' % ('vmIP', 'vmMAC'), 'r'))
else:
output('\n')
i = 0
for _ in content:
#color = ['w','g'][i%2]
color = 'b'
output(
color_str('%-20s%-12s%-8s%-12s' % (_[0], _[1], _[2], _[3]), color))
if mac_ip_show:
output(color_str('%-16s%-24s\n' % (_[4], _[5]), color))
else:
output('\n')
i += 1
def _check_compute_node_fip_ns(self, rfp_port, ns_fip):
"""
Check a fip namespace on compute node
:param rfp_port:
:return:
"""
q = 'fpr-' + rfp_port['intf'][4:]
output(b('### Checking associated fpr port %s\n' % q))
self.nss.show(ns_fip)
output(b('### Check related fip_ns=%s\n' % ns_fip))
fpr_port = NameSpace(ns_fip).get_intf_by_name(q)
if not fpr_port:
warn(r('Cannot find fpr_port in fip ns %s\n' % ns_fip))
return
a_ip, a_mask = rfp_port['ip'][0].split('/')
b_ip, b_mask = fpr_port['ip'][0].split('/')
if networkMask(a_ip, a_mask) != networkMask(b_ip, b_mask):
warn(
r('Different subnets for %s and %s\n' %
(rfp_port['ip'][0], fpr_port['ip'][0])))
return
else:
output(g('Bridging in the same subnet\n'))
fg_port = NameSpace(ns_fip).find_intf('fg-')
if not fg_port:
warn('Cannot find fg_port in fip ns %s\n' % ns_fip)
return
if fg_port['intf'] in Bridge('br-ex').get_ports():
output(g('fg port is attached to br-ex\n'))
else:
warn(g('fg port is NOT attached to br-ex\n'))
return
for float_ip in rfp_port['ip'][1:]:
ip = float_ip.split('/')[0]
if ipInNetwork(ip, fg_port['ip'][0]):
output(g('floating ip %s match fg subnet\n' % ip))
else:
warn(r('floating ip %s No match the fg subnet' % ip))
def _network_check_bridges(self):
"""
Check the bridge information
:return:
"""
output(b('>>> Checking bridges...\n'))
bridges = get_all_bridges()
names = bridges.keys()
brvlans = [e for e in names
if e not in ['br-int', 'br-ex', 'br-tun']]
if not brvlans:
warn(r('No vlan bridge is found\n'))
return False
brvlan = brvlans[0]
output(b('# Existing bridges are %s\n' % ', '.join(names)))
# check br-int
if 'br-int' not in names:
warn(r('No integration bridge is found\n'))
return False
else:
br = Bridge('br-int')
if not br.has_port('int-'+brvlan) and not br.has_port('patch-tun'):
if not br.has_port('int-'+brvlan):
warn(r('port %s not found in br-int\n' % 'int-'+brvlan))
if not br.has_port('patch-tun'):
warn(r('port %s not found in br-int\n' % 'patch-tun'))
return False
# check br-ex
if 'br-ex' not in names:
warn(r('No external bridge is found\n'))
return False
else:
br = Bridge('br-ex')
if not br.has_port_start_with('qg-'):
warn(r('No qg port found in br-ex\n'))
if 'br-tun' not in names:
warn(r('No tunnel bridge is found\n'))
return False
else:
br = Bridge('br-tun')
if not br.has_port('patch-int'):
warn(r('port %s not found in br-tun\n' % 'patch-int'))
return False
br = Bridge(brvlan)
if not br.has_port('phy-'+brvlan):
warn(r('port %s not found in %s\n' % ('phy-'+brvlan, brvlan)))
output(b('# Vlan bridge is at %s\n' % ', '.join(names)))
output(g('<<< Checking bridges passed\n'))
return True
def __init__(self):
"""
"""
self.node = None
self.br_int = Bridge('br-int')
self.nss = NameSpaces()
class DVR(object):
"""
DVR configuration
"""
def __init__(self):
"""
"""
self.node = None
self.br_int = Bridge('br-int')
self.nss = NameSpaces()
def check(self, _node=None):
guess = 'compute'
for ns_id in NameSpaces().get_ids():
if ns_id.startswith('snat-'): # only network has snat-*
guess = 'network'
break
if not _node:
output(b('# No node type given, guessing...%s node\n' % guess))
else: # given _node, will check if match
if _node not in guess:
warn(r('# Given node type=%s not match the server\n' % _node))
guess = _node
node = guess
if node in 'compute':
return self._compute_node_check()
elif node in 'network':
return self._network_node_check()
else:
error('Unknown node type=%s, compute or network?\n' % node)
def _check_chain_rule_num(self, table, c_name, num):
"""
Check if the chain has given number of rules.
:param table: table object
:param c_name:
:param num:
:return:
"""
output(b('Checking chain rule number: %s...' % c_name))
c = table.get_chain(c_name)
if len(c.get_rules()) != num:
warn(r("Wrong rule number in chain %s\n" % c_name))
return False
else:
output(g('Passed\n'))
return True
def _check_chain_has_rule(self, table, c_name, rule):
"""
:param rule:
:return: True or False
"""
output(b('Checking chain rules: %s...' % c_name))
c = table.get_chain(c_name)
if not c.has_rule(rule):
warn(r("Defined rule %s not in %s\n" % (rule, c_name)))
return False
else:
output(g('Passed\n'))
return True
def _compute_check_nat_rules(self, qr_intfs, rfp_intfs, nat, ns_fip):
"""
Check three chains rules match with each other
:param nat: the nat table
:param ns_fip:
:return: True or False
"""
c_name = 'neutron-l3-agent-PREROUTING'
rule = {'in': 'qr-+', 'source': '*', 'out': '*',
'destination': '169.254.169.254',
'target': 'REDIRECT', 'prot': 'tcp',
'flags': 'tcp dpt:80 redir ports 9697'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
ips_qr = [item for sublist in map(lambda x: x['ip'], qr_intfs) for
item in sublist]
ips_rfp = [item for sublist in map(lambda x: x['ip'], rfp_intfs) for
item in sublist]
for intf in rfp_intfs:
c_name = 'neutron-l3-agent-PREROUTING'
for ip_m in intf['ip'][1:]: # check each floating ip
dip = ip_m.split('/')[0] # real floating ip for destination
if not ipInNetworks(dip, ips_rfp):
warn(r('dip %s not in rfp ports %s\n'
% (dip, ips_rfp)))
return False
rule = nat.get_rule(c_name, {'destination': dip})
sip = rule.get_flags().split(':')[1]
if not ipInNetworks(sip, ips_qr):
warn(r('sip %s not in qr port %s\n' % (sip, ips_qr)))
return False
rule_expect = {'in': '*', 'source': '*', 'out': '*',
'destination': dip, 'target': 'DNAT',
'prot': '*', 'flags': 'to:'+sip}
if not rule.is_match(rule_expect):
warn(r('rule not matched in %s\n' % (c_name)))
return False
if not self._check_chain_has_rule(nat,
'neutron-l3-agent-OUTPUT',
rule_expect):
return False
else:
output(g('DNAT for incoming: %s --> %s passed\n'
% (dip, sip)))
rule_expect = {'in': '*', 'source': sip, 'out': '*',
'destination': '*', 'target': 'SNAT',
'prot': '*', 'flags': 'to:'+dip}
if not self._check_chain_has_rule(
nat,
'neutron-l3-agent-float-snat',
rule_expect):
return False
else:
output(g('SNAT for outgoing: %s --> %s passed\n'
% (sip, dip)))
return True
def _compute_check_nat_table(self, ns_q, ns_fip):
"""
Check the snat rules in the given ns
:param ns_q:
:param ns_fip:
:return:
"""
ipt = IPtables(ns_q)
nat = ipt.get_table(table='nat')
chains = [
'neutron-postrouting-bottom',
'neutron-l3-agent-OUTPUT',
'POSTROUTING',
'neutron-l3-agent-PREROUTING',
'PREROUTING',
'neutron-l3-agent-float-snat',
'OUTPUT',
'INPUT',
'neutron-l3-agent-POSTROUTING',
'neutron-l3-agent-snat',
]
for c_name in chains:
c = nat.get_chain(c_name)
if not c:
warn(r("Not found chain %s\n" % c_name))
return False
if c.get_policy() != 'ACCEPT':
warn(r("Chain %s's policy is not ACCEPT\n" % c.name))
for c_name in ['neutron-postrouting-bottom',
'OUTPUT', 'neutron-l3-agent-snat']:
if not self._check_chain_rule_num(nat, c_name, 1):
return False
c_name = 'neutron-postrouting-bottom'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-snat', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'PREROUTING'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-PREROUTING', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'OUTPUT'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-OUTPUT', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'POSTROUTING'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-POSTROUTING', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-postrouting-bottom', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'neutron-l3-agent-POSTROUTING'
rfp_intfs = NameSpace(ns_q).find_intfs('rfp-')
for intf in rfp_intfs:
rule = {'in': '!'+intf['intf'], 'source': '*',
'out': '!'+intf['intf'], 'destination': '*',
'target': 'ACCEPT', 'prot': '*',
'flags': '! ctstate DNAT'}
self._check_chain_has_rule(nat, c_name, rule) # empty when no fip
qr_intfs = NameSpace(ns_q).find_intfs('qr-')
if not self._compute_check_nat_rules(qr_intfs, rfp_intfs, nat,
ns_fip):
return False
return True
def _compute_check_router_ns(self, ns_router):
"""
Check the local router namespace on compute node
:param ns_router:
:return: list of the fip ns
"""
if not ns_router:
return False
intfs = NameSpace(ns_router).get_intfs()
rfp_ports = [] # list of {'intf':eth0, 'ip':[]}
for i in intfs: # check each intf in this ns
p = intfs[i]['intf']
if p.startswith('rfp-'): # rfp port in q connect to fpr in fip
rfp_ports.append(p)
output(b('### Checking rfp port %s\n' % p))
if len(intfs[i]['ip']) < 2:
warn(r('Missing ips for port %s\n' % p))
continue
else:
output(g('Found associated floating ips : %s\n'
% ', '.join(intfs[i]['ip'][1:])))
q = 'fpr-'+intfs[i]['intf'][4:]
ns_fip = self.nss.get_ns_by_port(q)
if not ns_fip:
warn(r('Cannot find fip ns for %s\n' % q))
return False
if not self._compute_check_fip_ns(intfs[i], ns_fip):
warn(r('Checking fip ns failed\n'))
return False
if not self._compute_check_nat_table(ns_router, ns_fip):
warn(r('Checking qrouter ns %s nat table failed\n'
% ns_router))
return False
if not rfp_ports:
warn(r('Cannot find rfp port in ns %s\n' % ns_router))
return False
elif len(rfp_ports) > 1:
warn(r('More than 1 rfp ports in ns %s\n' % ns_router))
return False
return True
def _compute_check_fip_ns(self, rfp_port, ns_fip):
"""
Check a fip namespace on compute node
:param rfp_port:
:return: True or False
"""
q = 'fpr-'+rfp_port['intf'][4:]
output(b('### Checking associated fpr port %s\n' % q))
#self.nss.show(ns_fip)
output(b('### Check related fip_ns=%s\n' % ns_fip))
fpr_port = NameSpace(ns_fip).get_intf_by_name(q)
if not fpr_port:
warn(r('Cannot find fpr_port in fip ns %s\n' % ns_fip))
return False
if networkMask(rfp_port['ip'][0]) != networkMask(fpr_port['ip'][0]):
warn(r('Different subnets for %s and %s\n'
% (rfp_port['ip'][0], fpr_port['ip'][0])))
return False
else:
output(g('Bridging in the same subnet\n'))
fg_port = NameSpace(ns_fip).find_intf('fg-')
if not fg_port:
warn('Cannot find fg_port in fip ns %s\n' % ns_fip)
return False
if fg_port['intf'] in Bridge('br-ex').get_ports():
output(g('fg port is attached to br-ex\n'))
else:
warn(g('fg port is NOT attached to br-ex\n'))
return False
for float_ip in rfp_port['ip'][1:]:
ip = float_ip.split('/')[0]
if ipInNetwork(ip, fg_port['ip'][0]):
output(g('floating ip %s match fg subnet\n' % ip))
else:
warn(r('floating ip %s No match the fg subnet' % ip))
return False
return True
def _compute_check_vports(self):
"""
Check the vport related information and rules
:return:
"""
checked_ns = []
output(b('>>> Checking vports ...\n'))
for port in self.br_int.get_ports():
if port.startswith('qr-'): # qrouter port
output(b('## Checking router port = %s\n' % port))
nsrouter = self.nss.get_ns_by_port(port)
if nsrouter in checked_ns:
output(g('Checking passed already\n'))
continue
else:
checked_ns.append(nsrouter) # the names of the ns checked
if not self._compute_check_router_ns(nsrouter):
warn(r('<<< Checking vports failed\n'))
return False
output(b('<<< Checking vports passed\n'))
return True
def _compute_check_config_files(self):
"""
Check related configuration files
:return: True if no warning
"""
warns = False
output(b('>>> Checking config files...\n'))
file = '/etc/sysctl.conf'
lines = [
'net.ipv4.ip_forward=1',
'net.ipv4.conf.default.rp_filter=0',
'net.ipv4.conf.all.rp_filter=0',
'net.bridge.bridge-nf-call-iptables=1',
'net.bridge.bridge-nf-call-ip6tables=1'
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s NOT has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/neutron.conf'
lines = [
'[DEFAULT]',
#'router_distributed = True',
'core_plugin = neutron.plugins.ml2.plugin.Ml2Plugin',
'allow_overlapping_ips = True',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s NOT has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/plugins/ml2/ml2_conf.ini'
lines = [
'[agent]',
'l2_population = True',
'enable_distributed_routing = True',
'arp_responder = True',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s Not has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/l3_agent.ini'
lines = [
'[DEFAULT]',
'use_namespaces = True', # optional
'router_delete_namespaces = True',
'agent_mode = dvr',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s NOT has %s\n' % (file, l)))
warns = True
if not warns:
output(g('<<< Checking config files passed\n'))
return True
else:
warn(r('<<< Checking config files has warnings\n'))
return False
def _compute_check_bridges(self):
"""
Check the bridge information
:return:
"""
output(b('>>> Checking bridges...\n'))
bridges = get_all_bridges()
names = bridges.keys()
brvlans = [e for e in names
if e not in ['br-int', 'br-ex', 'br-tun']]
if not brvlans:
warn(r('No vlan bridge is found\n'))
tunnel_types = []
else:
tunnel_types = ['vlan']
brvlan = brvlans[0]
if 'br-tun' in names:
tunnel_types.append('gre')
output(b('# Existing bridges are %s\n' % ', '.join(names)))
# check br-int
if 'br-int' not in names:
warn(r('No integration bridge is found\n'))
return False
else:
br = Bridge('br-int')
if 'vlan' in tunnel_types and not br.has_port('int-'+brvlan):
warn(r('tunnel port %s not found in br-int\n' %
'int-'+brvlan))
return False
if 'gre' in tunnel_types and not br.has_port('patch-tun'):
warn(r('tunnel port %s not found in br-int\n' %
'patch-tun'))
# check br-ex
if 'br-ex' not in names:
warn(r('No external bridge is found\n'))
return False
else:
br = Bridge('br-ex')
if not br.has_port_start_with('fg-'):
warn(r('No fg port found in br-ex\n'))
if not br.has_port('phy-br-ex'):
warn(r('port %s not found in br-ex\n' % 'phy-br-ex'))
return False
# check gre tunnel bridge
if 'gre' in tunnel_types:
br = Bridge('br-tun')
if not br.has_port('patch-int'):
warn(r('port %s not found in br-tun\n' % 'patch-int'))
return False
# check vlan tunnel bridge
if 'vlan' in tunnel_types:
br = Bridge(brvlan)
if not br.has_port('phy-'+brvlan):
warn(r('port %s not found in %s\n' % ('phy-'+brvlan, brvlan)))
output(b('# Vlan bridge is at %s\n' % ', '.join(names)))
output(g('<<< Checking bridges passed\n'))
return True
def _compute_check_processes(self):
"""
Check related configuration files
:return: True if no warning
"""
output(b('>>> Checking processes...\n'))
warns = False
cmd = "ps aux|grep neutron|grep python|grep -v grep"
result, err = \
Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True).communicate()
if err:
return False
for p in [
'neutron-metadata-agent',
'neutron-openvswitch-agent',
'neutron-l3-agent',
#'neutron-ns-metadata-proxy',
]:
if p not in result:
warn(r('%s service is not running\n' % p))
warns = True
if not warns:
output(g('<<< Checking processes passed\n'))
return True
else:
warn(r('<<< Checking processes has warnings\n'))
return False
def _compute_node_check(self):
"""
Check the qrouter-*** fip-*** spaces in the compute node.
:return:
"""
output(b('=== Checking DVR on compute node ===\n'))
flag = True
if not self._compute_check_config_files():
flag = False
output('\n')
if not self._compute_check_bridges():
flag = False
output('\n')
if not self._compute_check_vports():
flag = False
if flag:
output(g('=== PASSED Checking DVR on compute node ===\n'))
else:
warn(r('=== FAILED Checking DVR on compute node ===\n'))
return flag
def _network_node_check(self):
"""
Check the qrouter-*** fip-*** snat-*** spaces in the network node.
:return:
"""
output(b('=== Checking DVR on network node ===\n'))
flag = True
if not self._network_check_config_files():
flag = False
output('\n')
if not self._network_check_processes():
flag = False
output('\n')
if not self._network_check_bridges():
flag = False
output('\n')
if not self._network_check_vports():
flag = False
if flag:
output(g('=== PASSED Checking DVR on network node ===\n'))
else:
warn(r('=== FAILED Checking DVR on network node ===\n'))
return flag
def _network_check_config_files(self):
"""
Check related configuration files
:return: True if no warning
"""
warns = False
output(b('>>> Checking config files...\n'))
file = '/etc/sysctl.conf'
lines = [
'net.ipv4.ip_forward=1',
'net.ipv4.conf.default.rp_filter=0',
'net.ipv4.conf.all.rp_filter=0',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s NOT has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/neutron.conf'
lines = [
'[DEFAULT]',
'router_distributed = True',
'core_plugin = neutron.plugins.ml2.plugin.Ml2Plugin',
'allow_overlapping_ips = True',
'allow_automatic_l3agent_failover = True',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s NOT has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/plugins/ml2/ml2_conf.ini'
lines = [
'[securitygroup]',
'enable_security_group = True',
'enable_ipset = True',
'[ovs]',
'bridge_mappings = external:br-ex',
'[agent]',
'l2_population = True',
'enable_distributed_routing = True',
'arp_responder = True',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s Not has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/l3_agent.ini'
lines = [
'[DEFAULT]',
'use_namespaces = True',
#'external_network_bridge =',
'router_delete_namespaces = True',
'agent_mode = dvr_snat',
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s NOT has %s\n' % (file, l)))
warns = True
file = '/etc/neutron/dhcp_agent.ini'
lines = [
'[DEFAULT]',
'interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver',
'dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq',
'use_namespaces = True',
'dhcp_delete_namespaces = True',
'dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf'
]
output(b('# Checking file = %s...\n' % file))
for l in lines:
if not fileHasLine(file, l):
warn(r('file %s Not has %s\n' % (file, l)))
if l == lines[-1]:
warn(r(' Suggest change MTU if using VXLAN, '))
warn(r('adding following line into '
'/etc/neutron/dnsmasq-neutron.conf\n'))
warn(r(' dhcp-option-force=26,1450\n'))
warns = True
if not warns:
output(g('<<< Checking config files passed\n'))
return True
else:
warn(r('<<< Checking config files has warnings\n'))
return False
def _network_check_processes(self):
"""
Check related configuration files
:return: True if no warning
"""
output(b('>>> Checking processes...\n'))
warns = False
cmd = "ps aux|grep neutron|grep python"
result, err = \
Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True).communicate()
if err:
return []
for p in [
'neutron-server',
'neutron-dhcp-agent',
'neutron-metadata-agent',
'neutron-openvswitch-agent',
'neutron-l3-agent',
#'neutron-ns-metadata-proxy',
]:
if p not in result:
warn(r('%s service is not running\n' % p))
warns = True
if not warns:
output(g('<<< Checking processes passed\n'))
return True
else:
warn(r('<<< Checking processes has warnings\n'))
return False
def _network_check_bridges(self):
"""
Check the bridge information
:return:
"""
output(b('>>> Checking bridges...\n'))
bridges = get_all_bridges()
names = bridges.keys()
brvlans = [e for e in names
if e not in ['br-int', 'br-ex', 'br-tun']]
if not brvlans:
warn(r('No vlan bridge is found\n'))
return False
brvlan = brvlans[0]
output(b('# Existing bridges are %s\n' % ', '.join(names)))
# check br-int
if 'br-int' not in names:
warn(r('No integration bridge is found\n'))
return False
else:
br = Bridge('br-int')
if not br.has_port('int-'+brvlan) and not br.has_port('patch-tun'):
if not br.has_port('int-'+brvlan):
warn(r('port %s not found in br-int\n' % 'int-'+brvlan))
if not br.has_port('patch-tun'):
warn(r('port %s not found in br-int\n' % 'patch-tun'))
return False
# check br-ex
if 'br-ex' not in names:
warn(r('No external bridge is found\n'))
return False
else:
br = Bridge('br-ex')
if not br.has_port_start_with('qg-'):
warn(r('No qg port found in br-ex\n'))
if 'br-tun' not in names:
warn(r('No tunnel bridge is found\n'))
return False
else:
br = Bridge('br-tun')
if not br.has_port('patch-int'):
warn(r('port %s not found in br-tun\n' % 'patch-int'))
return False
br = Bridge(brvlan)
if not br.has_port('phy-'+brvlan):
warn(r('port %s not found in %s\n' % ('phy-'+brvlan, brvlan)))
output(b('# Vlan bridge is at %s\n' % ', '.join(names)))
output(g('<<< Checking bridges passed\n'))
return True
def _network_check_vports(self):
"""
Check the vport related information and rules
:return:
"""
checked_ns = []
output(b('>>> Checking vports ...\n'))
qr_ports, dhcp_ports, sg_ports = [], [], []
qr_ports_ips = []
br_ports = self.br_int.get_ports()
for port in br_ports:
if port.startswith('qr-'): # qrouter port
qr_ports.append(port)
elif port.startswith('tap'): # qrouter port
dhcp_ports.append(port)
elif port.startswith('sg-'): # qrouter port
sg_ports.append(port)
if not qr_ports:
output('# no qrouter port found\n')
if not dhcp_ports:
output('# no dhcp port found\n')
if not sg_ports:
output('# no sg port found\n')
for port in qr_ports:
output(b('## Checking router port = %s\n' % port))
ns_router = self.nss.get_ns_by_port(port)
if ns_router in checked_ns:
output(g('Checking passed already\n'))
else:
checked_ns.append(ns_router) # the names of the ns checked
if not self._network_check_router_ns(ns_router):
warn(r('<<< Checking vports failed\n'))
return False
qr_ports_ips.extend(NameSpace(ns_router).get_ip_of_intf(
port))
for port in dhcp_ports:
output(b('## Checking dhcp port = %s\n' % port))
ns_dhcp = self.nss.get_ns_by_port(port)
if ns_dhcp in checked_ns:
output(g('Checking passed already\n'))
else:
checked_ns.append(ns_dhcp) # the names of the ns checked
if not self._network_check_dhcp_ns(ns_dhcp):
warn(r('<<< Checking vports failed\n'))
return False
for port in sg_ports: # snat port
output(b('## Checking sg port = %s\n' % port))
ns_snat = self.nss.get_ns_by_port(port)
if ns_snat in checked_ns:
output(g('Checking passed already\n'))
else:
checked_ns.append(ns_snat) # the names of the ns checked
if not self._network_check_snat_ns(ns_snat, qr_ports_ips):
warn(r('<<< Checking vports failed\n'))
return False
output(g('<<< Checking vports passed\n'))
return True
def _network_check_router_ns(self, ns_router):
"""
Check the local router namespace on compute node
:param ns_router:
:return: list of the fip ns
"""
output(b('### Checking router ns = %s\n' % ns_router))
if not ns_router:
return False
intfs = NameSpace(ns_router).get_intfs()
r_ports = [] # list of {'intf':eth0, 'ip':[]}
for i in intfs: # check each intf in this ns
p = intfs[i]['intf']
if p == 'lo': # ignore the lo port
continue
elif not p.startswith('qr-'): # no router port?
warn(r('Invalid port %s in %s\n' % (p, ns_router)))
return False
else:
output(b('### Checking port %s\n' % p))
r_ports.append(p)
if not intfs[i]['ip']:
warn(r('No ip with port %s in %s\n' % (p, ns_router)))
return False
else:
for ip_m in intfs[i]['ip']:
ip, mask = ip_m.split('/')
if ipStrToNum(ip) != networkMask(ip_m) + 1:
warn(r('IP %s is not gw on port %s\n' % (ip_m,
ns_router)))
return False
if not r_ports:
warn(r('Cannot find router port in ns %s\n' % ns_router))
return False
return True
def _network_check_dhcp_ns(self, ns_dhcp):
"""
Check the local router namespace on compute node
:param ns_router:
:return: list of the fip ns
"""
output(b('### Checking dhcp ns = %s...' % ns_dhcp))
if not ns_dhcp or not ns_dhcp.startswith('qdhcp-'):
warn(r('Given dhcp ns %s name is invalid\n' % ns_dhcp))
return False
warns = False
intfs = NameSpace(ns_dhcp).get_intfs()
dhcp_ports = [] # list of {'intf':eth0, 'ip':[]}
for i in intfs: # check each intf in this ns
p = intfs[i]['intf']
if p == 'lo': # ignore the lo port
continue
elif not p.startswith('tap'): # no router port?
warn(r('Invalid port dhcp %s in %s\n' % (p, ns_dhcp)))
return False
else:
dhcp_ports.append(p)
if not intfs[i]['ip']:
warn(r('No ip with dhcp port %s in %s\n' % (p, ns_dhcp)))
return False
for ip_m in intfs[i]['ip']:
if ip_m.startswith('169.254'):
continue
ip, mask = ip_m.split('/')
intf = intfs[i]['intf']
# we do not checking the process here is because
# subprocess.Popen can only get one line of each process,
# while dnsmasq process is of several lines.
cmd = 'grep %s /var/lib/neutron/dhcp/%s/interface'\
% (intf, ns_dhcp[6:])
result, err = \
Popen(cmd, stdout=PIPE, stderr=PIPE,
shell=True).communicate()
if err:
warn(r(err))
return False
if not result:
warn(r('Not found dhcp intf %s in cfg\n' % intf))
return False
cmd = 'grep %s /var/lib/neutron/dhcp/%s/host'\
% (ip, ns_dhcp[6:])
result, err = \
Popen(cmd, stdout=PIPE, stderr=PIPE,
shell=True).communicate()
if err:
warn(r(err))
return False
if not result:
warn(r('Not found dhcp server addr %s in cfg\n' %
ip))
return False
if not dhcp_ports:
warn(r('Cannot find dhcp port in ns %s\n' % ns_dhcp))
return False
output(g('Passed\n'))
return True
def _network_check_snat_ns(self, ns_snat, qr_ports_ips):
"""
Check the local router namespace on compute node
:param ns_snat:
:return: list of the fip ns
"""
output(b('### Checking snat ns = %s\n' % ns_snat))
if not ns_snat:
return False
intfs = NameSpace(ns_snat).get_intfs()
sg_ports, qg_ports = [], []
sg_ports_ips = []
for i in intfs: # check each intf in this ns
p = intfs[i]['intf']
if p == 'lo': # ignore the lo port
continue
elif p.startswith('sg-'): # no router port?
sg_ports.append(p)
sg_ports_ips.extend(intfs[i]['ip'])
elif p.startswith('qg-'): # no router port?
qg_ports.append(p)
if set(map(lambda x: networkMask(x), sg_ports_ips)) != \
set(map(lambda x: networkMask(x), qr_ports_ips)):
warn(r('qrouter ports not matched with sg ports\n'))
return False
if not sg_ports:
warn(r('Cannot find sg port in ns %s\n' % ns_snat))
return False
if not qg_ports:
warn(r('Cannot find qg port in ns %s\n' % ns_snat))
return False
if not self._network_check_nat_table(ns_snat):
warn(r('Checking snat ns %s nat table failed\n' % ns_snat))
return False
return True
def _network_check_nat_table(self, ns_snat):
ipt = IPtables(ns_snat)
nat = ipt.get_table(table='nat')
qg_intfs = NameSpace(ns_snat).find_intfs('qg-')
chains = [
'PREROUTING',
'INPUT',
'OUTPUT',
'POSTROUTING',
'neutron-l3-agent-OUTPUT',
'neutron-l3-agent-PREROUTING',
'neutron-l3-agent-POSTROUTING',
'neutron-l3-agent-float-snat',
'neutron-l3-agent-snat',
'neutron-postrouting-bottom',
]
for c_name in chains:
c = nat.get_chain(c_name)
if not c:
warn(r("Not found chain %s\n" % c_name))
return False
if c.get_policy() != 'ACCEPT':
warn(r("Chain %s's policy is not ACCEPT\n" % c.name))
for c_name in ['PREROUTING', 'neutron-postrouting-bottom',
'OUTPUT']:
if not self._check_chain_rule_num(nat, c_name, 1):
warn(r("Chain %s's size mismatch\n" % c_name))
return False
c_name = 'OUTPUT'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-OUTPUT', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
c_name = 'POSTROUTING'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-POSTROUTING', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-postrouting-bottom', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
c_name = 'neutron-l3-agent-POSTROUTING'
for intf in qg_intfs:
rule = {'in': '!'+intf['intf'], 'source': '*',
'out': '!'+intf['intf'], 'destination': '*',
'target': 'ACCEPT', 'prot': '*',
'flags': '! ctstate DNAT'}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
c_name = 'neutron-l3-agent-snat'
for intf in qg_intfs:
for ip_m in intf['ip']:
ip = ip_m.split('/')[0]
rule = {'in': '*', 'source': '*', 'out': intf['intf'],
'destination': '*', 'target': 'SNAT', 'prot': '*',
'flags': 'to:'+ip}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
rule = {'in': '*', 'source': '*', 'out': '*',
'destination': '*', 'target': 'SNAT', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
c_name = 'neutron-postrouting-bottom'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-snat', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
warn(r("Chain %s's rule failed\n" % c_name))
return False
return True
def br_getflows(bridge):
if isinstance(bridge, str):
return Bridge(bridge).get_flows()
else:
return None
def br_delflow(bridge, ids):
debug('br_delflow: %s: %s\n' % (bridge, ','.join(ids)))
if type(ids) == str and ids.isdigit():
return Bridge(bridge).del_flow([ids])
else:
return Bridge(bridge).del_flow(ids)
def br_addflow(bridge, flow):
if 'actions=' in flow and len(flow.split()) == 2:
return Bridge(bridge).add_flow(flow)
else:
return False
class DVR(object):
"""
DVR configuration
"""
def __init__(self, node='compute'):
"""
:param node: on computer node or network node
"""
self.node = node
self.br_int = Bridge('br-int')
self.nss = NameSpaces()
def check(self, _node=None):
node = _node or self.node
if node in 'compute':
output(b('# Checking DVR on compute node\n'))
self._check_compute_node()
elif node in 'network':
output(b('# Checking DVR on network node\n'))
self._check_network_node()
else:
error('Unknown node type=%s, compute or network?\n' % node)
def _check_chain_rule_num(self, table, c_name, num):
"""
Check if the chain has given number of rules.
:param table:
:param c_name:
:param num:
:return:
"""
output(b('Checking chain rule number: %s...' % c_name))
c = table.get_chain(c_name)
if len(c.get_rules()) != num:
warn(r("Wrong rule number in chain %s\n" % c_name))
return False
else:
output(g('Passed\n'))
return True
def _check_chain_has_rule(self, table, c_name, rule):
"""
:param rule:
:return: True or False
"""
output(b('Checking chain rules: %s...' % c_name))
c = table.get_chain(c_name)
if not c.has_rule(rule):
warn(r("Defined rule not in %s\n" % c_name))
return False
else:
output(g('Passed\n'))
return True
def _check_compute_node_nat_rules(self, qr_intfs, rfp_intfs, nat, ns_fip):
"""
Check three chains rules match with each other
:param nat: the nat table
:param ns_fip:
:return: True or False
"""
c_name = 'neutron-l3-agent-PREROUTING'
rule = {
'in': 'qr-+',
'source': '*',
'out': '*',
'destination': '169.254.169.254',
'target': 'REDIRECT',
'prot': 'tcp',
'flags': 'tcp dpt:80 redir ports 9697'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
ips_qr = [
item for sublist in map(lambda x: x['ip'], qr_intfs)
for item in sublist
]
ips_rfp = [
item for sublist in map(lambda x: x['ip'], rfp_intfs)
for item in sublist
]
for intf in rfp_intfs:
c_name = 'neutron-l3-agent-PREROUTING'
for ip_m in intf['ip'][1:]: # check each floating ip
dip = ip_m.split('/')[0] # real floating ip for destination
if not ipInNetworks(dip, ips_rfp):
warn(r('dip %s not in rfp ports %s\n' % (dip, ips_rfp)))
return False
rule = nat.get_rule(c_name, {'destination': dip})
sip = rule.get_flags().split(':')[1]
if not ipInNetworks(sip, ips_qr):
warn(r('sip %s not in qr port %s\n' % (sip, ips_qr)))
return False
rule_expect = {
'in': '*',
'source': '*',
'out': '*',
'destination': dip,
'target': 'DNAT',
'prot': '*',
'flags': 'to:' + sip
}
if not rule.is_match(rule_expect):
warn(r('rule not matched in %s\n' % (c_name)))
return False
if not self._check_chain_has_rule(
nat, 'neutron-l3-agent-OUTPUT', rule_expect):
return False
else:
output(
g('DNAT for incomping: %s --> %s passed\n' %
(dip, sip)))
rule_expect = {
'in': '*',
'source': sip,
'out': '*',
'destination': '*',
'target': 'SNAT',
'prot': '*',
'flags': 'to:' + dip
}
if not self._check_chain_has_rule(
nat, 'neutron-l3-agent-float-snat', rule_expect):
return False
else:
output(
g('SNAT for outgoing: %s --> %s passed\n' %
(sip, dip)))
return True
def _check_compute_node_nat_table(self, ns_q, ns_fip):
"""
Check the snat rules in the given ns
:param ns_q:
:param ns_fip:
:return:
"""
ipt = IPtables(ns_q)
nat = ipt.get_table(table='nat')
chains = [
'neutron-postrouting-bottom',
'neutron-l3-agent-OUTPUT',
'POSTROUTING',
'neutron-l3-agent-PREROUTING',
'PREROUTING',
'neutron-l3-agent-float-snat',
'OUTPUT',
'INPUT',
'neutron-l3-agent-POSTROUTING',
'neutron-l3-agent-snat',
]
for c_name in chains:
c = nat.get_chain(c_name)
if not c:
warn(r("Not found chain %s\n" % c_name))
return False
if c.get_policy() != 'ACCEPT':
warn(r("Chain %s's policy is not ACCEPT\n" % c.name))
for c_name in [
'neutron-postrouting-bottom', 'OUTPUT', 'neutron-l3-agent-snat'
]:
if not self._check_chain_rule_num(nat, c_name, 1):
return False
c_name = 'neutron-postrouting-bottom'
rule = {
'in': '*',
'source': '*',
'out': '*',
'destination': '*',
'target': 'neutron-l3-agent-snat',
'prot': '*'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'PREROUTING'
rule = {
'in': '*',
'source': '*',
'out': '*',
'destination': '*',
'target': 'neutron-l3-agent-PREROUTING',
'prot': '*'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'OUTPUT'
rule = {
'in': '*',
'source': '*',
'out': '*',
'destination': '*',
'target': 'neutron-l3-agent-OUTPUT',
'prot': '*'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'POSTROUTING'
rule = {
'in': '*',
'source': '*',
'out': '*',
'destination': '*',
'target': 'neutron-l3-agent-POSTROUTING',
'prot': '*'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
rule = {
'in': '*',
'source': '*',
'out': '*',
'destination': '*',
'target': 'neutron-postrouting-bottom',
'prot': '*'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'neutron-l3-agent-POSTROUTING'
rfp_intfs = NameSpace(ns_q).find_intfs('rfp-')
for intf in rfp_intfs:
rule = {
'in': '!' + intf['intf'],
'source': '*',
'out': '!' + intf['intf'],
'destination': '*',
'target': 'ACCEPT',
'prot': '*',
'flags': '! ctstate DNAT'
}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
qr_intfs = NameSpace(ns_q).find_intfs('qr-')
if not self._check_compute_node_nat_rules(qr_intfs, rfp_intfs, nat,
ns_fip):
return False
return True
def _check_compute_node_snat_ns(self, ns_router):
"""
Check the local router namespace on compute node
:param ns_router:
:return: list of the fip ns
"""
if not ns_router:
return
self.nss.show(ns_router)
intfs = NameSpace(ns_router).get_intfs()
rfp_ports = [] # list of {'intf':eth0, 'ip':[]}
for i in intfs: # check each intf in this ns
p = intfs[i]['intf']
if p.startswith('rfp-'): # rfp port in q connect to fpr in fip
rfp_ports.append(p)
output(b('### Checking rfp port %s\n' % p))
if len(intfs[i]['ip']) < 2:
warn(r('Missing ips for port %s\n' % p))
continue
else:
output(
g('Found associated floating ips : %s\n' %
', '.join(intfs[i]['ip'][1:])))
ns_fip = self.nss.get_intf_by_name('fpr-' +
intfs[i]['intf'][4:])
if not ns_fip:
warn(r('Cannot find fip ns for %s\n' % q))
return
self._check_compute_node_fip_ns(intfs[i], ns_fip)
self._check_compute_node_nat_table(ns_router, ns_fip)
if not rfp_ports:
warn(r('Cannot find rfp port in ns %s\n' % ns_router))
elif len(rfp_ports) > 1:
warn(r('More than 1 rfp ports in ns %s\n' % ns_router))
def _check_compute_node_fip_ns(self, rfp_port, ns_fip):
"""
Check a fip namespace on compute node
:param rfp_port:
:return:
"""
q = 'fpr-' + rfp_port['intf'][4:]
output(b('### Checking associated fpr port %s\n' % q))
self.nss.show(ns_fip)
output(b('### Check related fip_ns=%s\n' % ns_fip))
fpr_port = NameSpace(ns_fip).get_intf_by_name(q)
if not fpr_port:
warn(r('Cannot find fpr_port in fip ns %s\n' % ns_fip))
return
a_ip, a_mask = rfp_port['ip'][0].split('/')
b_ip, b_mask = fpr_port['ip'][0].split('/')
if networkMask(a_ip, a_mask) != networkMask(b_ip, b_mask):
warn(
r('Different subnets for %s and %s\n' %
(rfp_port['ip'][0], fpr_port['ip'][0])))
return
else:
output(g('Bridging in the same subnet\n'))
fg_port = NameSpace(ns_fip).find_intf('fg-')
if not fg_port:
warn('Cannot find fg_port in fip ns %s\n' % ns_fip)
return
if fg_port['intf'] in Bridge('br-ex').get_ports():
output(g('fg port is attached to br-ex\n'))
else:
warn(g('fg port is NOT attached to br-ex\n'))
return
for float_ip in rfp_port['ip'][1:]:
ip = float_ip.split('/')[0]
if ipInNetwork(ip, fg_port['ip'][0]):
output(g('floating ip %s match fg subnet\n' % ip))
else:
warn(r('floating ip %s No match the fg subnet' % ip))
def _check_compute_node(self):
"""
Check the qrouter-*** fip-*** spaces in the compute node.
:return:
"""
checked_ns = []
for port in self.br_int.get_ports():
if port.startswith('qr-'): # qrouter port
output(b('## Checking router port = %s\n' % port))
nsrouter = self.nss.get_intf_by_name(port)
if nsrouter in checked_ns:
output(g('Checking passed already\n'))
continue
else:
checked_ns.append(nsrouter) # the names of the ns checked
self._check_compute_node_snat_ns(nsrouter)
pass
pass
def _check_network_node(self):
"""
Check the qrouter-*** fip-*** snat-*** spaces in the network node.
:return:
"""
pass
def br_dump(name):
"""
Dump the port information of a given bridges.
"""
Bridge(name).dump_flows()
class DVR(object):
"""
DVR configuration
"""
def __init__(self, node='compute'):
"""
:param node: on computer node or network node
"""
self.node = node
self.br_int = Bridge('br-int')
self.nss = NameSpaces()
def check(self, _node=None):
node = _node or self.node
if node in 'compute':
output(b('# Checking DVR on compute node\n'))
self._check_compute_node()
elif node in 'network':
output(b('# Checking DVR on network node\n'))
self._check_network_node()
else:
error('Unknown node type=%s, compute or network?\n' % node)
def _check_chain_rule_num(self, table, c_name, num):
"""
Check if the chain has given number of rules.
:param table:
:param c_name:
:param num:
:return:
"""
output(b('Checking chain rule number: %s...' % c_name))
c = table.get_chain(c_name)
if len(c.get_rules()) != num:
warn(r("Wrong rule number in chain %s\n" % c_name))
return False
else:
output(g('Passed\n'))
return True
def _check_chain_has_rule(self, table, c_name, rule):
"""
:param rule:
:return: True or False
"""
output(b('Checking chain rules: %s...' % c_name))
c = table.get_chain(c_name)
if not c.has_rule(rule):
warn(r("Defined rule not in %s\n" % c_name))
return False
else:
output(g('Passed\n'))
return True
def _check_compute_node_nat_rules(self, qr_intfs, rfp_intfs, nat, ns_fip):
"""
Check three chains rules match with each other
:param nat: the nat table
:param ns_fip:
:return: True or False
"""
c_name = 'neutron-l3-agent-PREROUTING'
rule = {'in': 'qr-+', 'source': '*', 'out': '*',
'destination': '169.254.169.254',
'target': 'REDIRECT', 'prot': 'tcp',
'flags': 'tcp dpt:80 redir ports 9697'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
ips_qr = [item for sublist in map(lambda x: x['ip'], qr_intfs) for
item in sublist]
ips_rfp = [item for sublist in map(lambda x: x['ip'], rfp_intfs) for
item in sublist]
for intf in rfp_intfs:
c_name = 'neutron-l3-agent-PREROUTING'
for ip_m in intf['ip'][1:]: # check each floating ip
dip = ip_m.split('/')[0] # real floating ip for destination
if not ipInNetworks(dip, ips_rfp):
warn(r('dip %s not in rfp ports %s\n'
% (dip, ips_rfp)))
return False
rule = nat.get_rule(c_name, {'destination': dip})
sip = rule.get_flags().split(':')[1]
if not ipInNetworks(sip, ips_qr):
warn(r('sip %s not in qr port %s\n' % (sip, ips_qr)))
return False
rule_expect = {'in': '*', 'source': '*', 'out': '*',
'destination': dip, 'target': 'DNAT',
'prot': '*', 'flags': 'to:'+sip}
if not rule.is_match(rule_expect):
warn(r('rule not matched in %s\n' % (c_name)))
return False
if not self._check_chain_has_rule(nat,
'neutron-l3-agent-OUTPUT',
rule_expect):
return False
else:
output(g('DNAT for incomping: %s --> %s passed\n'
% (dip, sip)))
rule_expect = {'in': '*', 'source': sip, 'out': '*',
'destination': '*', 'target': 'SNAT',
'prot': '*', 'flags': 'to:'+dip}
if not self._check_chain_has_rule(
nat,
'neutron-l3-agent-float-snat',
rule_expect):
return False
else:
output(g('SNAT for outgoing: %s --> %s passed\n'
% (sip, dip)))
return True
def _check_compute_node_nat_table(self, ns_q, ns_fip):
"""
Check the snat rules in the given ns
:param ns_q:
:param ns_fip:
:return:
"""
ipt = IPtables(ns_q)
nat = ipt.get_table(table='nat')
chains = [
'neutron-postrouting-bottom',
'neutron-l3-agent-OUTPUT',
'POSTROUTING',
'neutron-l3-agent-PREROUTING',
'PREROUTING',
'neutron-l3-agent-float-snat',
'OUTPUT',
'INPUT',
'neutron-l3-agent-POSTROUTING',
'neutron-l3-agent-snat',
]
for c_name in chains:
c = nat.get_chain(c_name)
if not c:
warn(r("Not found chain %s\n" % c_name))
return False
if c.get_policy() != 'ACCEPT':
warn(r("Chain %s's policy is not ACCEPT\n" % c.name))
for c_name in ['neutron-postrouting-bottom',
'OUTPUT', 'neutron-l3-agent-snat']:
if not self._check_chain_rule_num(nat, c_name, 1):
return False
c_name = 'neutron-postrouting-bottom'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-snat', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'PREROUTING'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-PREROUTING', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'OUTPUT'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-OUTPUT', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'POSTROUTING'
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-l3-agent-POSTROUTING', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
rule = {'in': '*', 'source': '*', 'out': '*', 'destination': '*',
'target': 'neutron-postrouting-bottom', 'prot': '*'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
c_name = 'neutron-l3-agent-POSTROUTING'
rfp_intfs = NameSpace(ns_q).find_intfs('rfp-')
for intf in rfp_intfs:
rule = {'in': '!'+intf['intf'], 'source': '*',
'out': '!'+intf['intf'], 'destination': '*',
'target': 'ACCEPT', 'prot': '*',
'flags': '! ctstate DNAT'}
if not self._check_chain_has_rule(nat, c_name, rule):
return False
qr_intfs = NameSpace(ns_q).find_intfs('qr-')
if not self._check_compute_node_nat_rules(qr_intfs, rfp_intfs, nat,
ns_fip):
return False
return True
def _check_compute_node_snat_ns(self, ns_router):
"""
Check the local router namespace on compute node
:param ns_router:
:return: list of the fip ns
"""
if not ns_router:
return
self.nss.show(ns_router)
intfs = NameSpace(ns_router).get_intfs()
rfp_ports = [] # list of {'intf':eth0, 'ip':[]}
for i in intfs: # check each intf in this ns
p = intfs[i]['intf']
if p.startswith('rfp-'): # rfp port in q connect to fpr in fip
rfp_ports.append(p)
output(b('### Checking rfp port %s\n' % p))
if len(intfs[i]['ip']) < 2:
warn(r('Missing ips for port %s\n' % p))
continue
else:
output(g('Found associated floating ips : %s\n'
% ', '.join(intfs[i]['ip'][1:])))
ns_fip = self.nss.get_intf_by_name('fpr-'+intfs[i]['intf'][4:])
if not ns_fip:
warn(r('Cannot find fip ns for %s\n' % q))
return
self._check_compute_node_fip_ns(intfs[i], ns_fip)
self._check_compute_node_nat_table(ns_router, ns_fip)
if not rfp_ports:
warn(r('Cannot find rfp port in ns %s\n' % ns_router))
elif len(rfp_ports) > 1:
warn(r('More than 1 rfp ports in ns %s\n' % ns_router))
def _check_compute_node_fip_ns(self, rfp_port, ns_fip):
"""
Check a fip namespace on compute node
:param rfp_port:
:return:
"""
q = 'fpr-'+rfp_port['intf'][4:]
output(b('### Checking associated fpr port %s\n' % q))
self.nss.show(ns_fip)
output(b('### Check related fip_ns=%s\n' % ns_fip))
fpr_port = NameSpace(ns_fip).get_intf_by_name(q)
if not fpr_port:
warn(r('Cannot find fpr_port in fip ns %s\n' % ns_fip))
return
a_ip, a_mask = rfp_port['ip'][0].split('/')
b_ip, b_mask = fpr_port['ip'][0].split('/')
if networkMask(a_ip, a_mask) != networkMask(b_ip, b_mask):
warn(r('Different subnets for %s and %s\n'
% (rfp_port['ip'][0], fpr_port['ip'][0])))
return
else:
output(g('Bridging in the same subnet\n'))
fg_port = NameSpace(ns_fip).find_intf('fg-')
if not fg_port:
warn('Cannot find fg_port in fip ns %s\n' % ns_fip)
return
if fg_port['intf'] in Bridge('br-ex').get_ports():
output(g('fg port is attached to br-ex\n'))
else:
warn(g('fg port is NOT attached to br-ex\n'))
return
for float_ip in rfp_port['ip'][1:]:
ip = float_ip.split('/')[0]
if ipInNetwork(ip, fg_port['ip'][0]):
output(g('floating ip %s match fg subnet\n' % ip))
else:
warn(r('floating ip %s No match the fg subnet' % ip))
def _check_compute_node(self):
"""
Check the qrouter-*** fip-*** spaces in the compute node.
:return:
"""
checked_ns = []
for port in self.br_int.get_ports():
if port.startswith('qr-'): # qrouter port
output(b('## Checking router port = %s\n' % port))
nsrouter = self.nss.get_intf_by_name(port)
if nsrouter in checked_ns:
output(g('Checking passed already\n'))
continue
else:
checked_ns.append(nsrouter) # the names of the ns checked
self._check_compute_node_snat_ns(nsrouter)
pass
pass
def _check_network_node(self):
"""
Check the qrouter-*** fip-*** snat-*** spaces in the network node.
:return:
"""
pass
