def check_dhcp_on_net(self, net_id, port_ip, phy_iface, net_type='vlan'):
if not cmp(net_type, 'vxlan'):
raise Exception("network type %s not supported." % net_type)
dhcp_ns = constants.DHCP_NS_PREFIX + net_id
# get tap interface in dhcp namespace
cmd = ['ip', 'netns', 'exec', dhcp_ns]
route_cmd = cmd + ['ip', 'r', 'show', 'default', '0.0.0.0/0']
stdcode, stdout = agent_utils.execute(route_cmd, root=True)
if stdcode != 0:
raise Exception(stdout.pop())
tap_iface = stdout.pop().split().pop()
arp_cmd = cmd + ['arping', '-I', tap_iface, '-c', '1', port_ip]
pcap = pcap_driver.PcapDriver()
filter = '(arp and host %s)' % port_ip
ifaces = ['br-int', 'ovsbr3', phy_iface]
listeners = map(lambda i: pcap.setup_listener(i, filter), ifaces)
agent_utils.execute(arp_cmd, root=True)
map(pcap.set_nonblock, listeners)
# unpack arp
data = dict()
scapy = scapy_driver.ScapyDriver()
for listener in listeners:
data[listener.name] = []
for packet in listener.readpkts():
data[listener.name].append(scapy.get_arp_op(str(packet[1])))
return agent_utils.make_response(code=0, data=data)
def check_dhcp_on_net(self, net_id, port_ip, phy_iface, net_type='vlan'):
if not cmp(net_type, 'vxlan'):
raise Exception("network type %s not supported." % net_type)
dhcp_ns = constants.DHCP_NS_PREFIX + net_id
# get tap interface in dhcp namespace
cmd = ['ip', 'netns', 'exec', dhcp_ns]
route_cmd = cmd + ['ip', 'r', 'show', 'default', '0.0.0.0/0']
stdcode, stdout = agent_utils.execute(route_cmd, root=True)
if stdcode != 0:
raise Exception(stdout.pop())
tap_iface = stdout.pop().split().pop()
arp_cmd = cmd + ['arping', '-I', tap_iface, '-c', '1', port_ip]
pcap = pcap_driver.PcapDriver()
filter = '(arp and host %s)' % port_ip
ifaces = ['br-int', 'ovsbr3', phy_iface]
listeners = map(lambda i: pcap.setup_listener(i, filter), ifaces)
agent_utils.execute(arp_cmd, root=True)
map(pcap.set_nonblock, listeners)
# unpack arp
data = dict()
scapy = scapy_driver.ScapyDriver()
for listener in listeners:
data[listener.name] = []
for packet in listener.readpkts():
data[listener.name].append(scapy.get_arp_op(str(packet[1])))
return agent_utils.make_response(code=0, data=data)
def teardown_link(self, interface):
"""ip link
"""
cmd = ['ip', 'link', 'delete', interface]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
return agent_utils.make_response(code=stdcode)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def teardown_link(self, interface):
"""ip link
"""
cmd = ['ip', 'link', 'delete', interface]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
return agent_utils.make_response(code=stdcode)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def setup_link(self, interface, cidr):
"""Setup a link.
ip addr add dev interface
ip link set dev interface up
"""
# clear old ipaddr in interface
cmd = ['ip', 'addr', 'flush', 'dev', interface]
agent_utils.execute(cmd, root=True)
ip = IPNetwork(cidr)
cmd = ['ip', 'addr', 'add', cidr, 'broadcast',
str(ip.broadcast), 'dev', interface]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
cmd = ['ip', 'link', 'set', 'dev', interface, 'up']
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
return agent_utils.make_response(code=stdcode)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def setup_link(self, interface, cidr):
"""Setup a link.
ip addr add dev interface
ip link set dev interface up
"""
# clear old ipaddr in interface
cmd = ['ip', 'addr', 'flush', 'dev', interface]
agent_utils.execute(cmd, root=True)
ip = IPNetwork(cidr)
cmd = [
'ip', 'addr', 'add', cidr, 'broadcast',
str(ip.broadcast), 'dev', interface
]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
cmd = ['ip', 'link', 'set', 'dev', interface, 'up']
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
return agent_utils.make_response(code=stdcode)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def validate_ip(self, ip=None):
"""Validate if IP exists on agent
ip addr show to ip
"""
if not ip:
msg = "Please validate the IP address"
return agent_utils.make_response(code=1, message=msg)
LOG.info("RPC: validate_ip for %s" % ip)
cmd = ['ip', 'addr', 'show', 'to', ip]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdout:
return agent_utils.make_response(code=0)
msg = "IP: %s doesn't exist!" % ip
return agent_utils.make_response(code=1, message=msg)
def add_vlan_to_interface(self, interface, vlan_id):
"""Add vlan interface.
ip link add link eth0 name eth0.10 type vlan id 10
"""
subif = '%s.%s' % (interface, vlan_id)
vlan_id = '%s' % vlan_id
cmd = ['ip', 'link', 'add', 'link', interface, 'name',
subif, 'type', 'vlan', 'id', vlan_id]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
return agent_utils.make_response(code=stdcode)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def add_vlan_to_interface(self, interface, vlan_id):
"""Add vlan interface.
ip link add link eth0 name eth0.10 type vlan id 10
"""
subif = '%s.%s' % (interface, vlan_id)
vlan_id = '%s' % vlan_id
cmd = [
'ip', 'link', 'add', 'link', interface, 'name', subif, 'type',
'vlan', 'id', vlan_id
]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdcode == 0:
return agent_utils.make_response(code=stdcode)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def validate_ip(self, ip=None):
"""Validate if IP exists on agent
ip addr show to ip
"""
if not ip:
msg = "Please validate the IP address"
return agent_utils.make_response(code=1,
message=msg)
LOG.info("RPC: validate_ip for %s" % ip)
cmd = ['ip', 'addr', 'show', 'to', ip]
stdcode, stdout = agent_utils.execute(cmd, root=True)
if stdout:
return agent_utils.make_response(code=0)
msg = "IP: %s doesn't exist!" % ip
return agent_utils.make_response(code=1,
message=msg)
def check_ports_on_br(self, bridge='br-ex', ports=['eth3']):
"""Check ports exist on bridge.
ovs-vsctl list-ports bridge
"""
LOG.info("RPC: check_ports_on_br bridge: %s, ports: %s" %
(bridge, ports))
cmd = ['ovs-vsctl', 'list-ports', bridge]
stdcode, stdout = agent_utils.execute(cmd, root=True)
data = dict()
if stdcode == 0:
for port in ports:
if port in stdout:
data[port] = True
stdout.remove(port)
else:
data[port] = False
return agent_utils.make_response(code=stdcode, data=data)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode, message=message)
def ping(self, ips, boardcast=False, count=2, timeout=2, interface=None):
"""Ping host or perform broadcast ping.
ping host -c 2 -W 2
"""
cmd = ['ping', '-c', str(count), '-W', str(timeout)]
True if not interface else cmd.extend(['-I', interface])
True if not boardcast else cmd.append('-b')
# Batch create subprocess
data = dict()
try:
for ip in ips:
stdcode, stdout = agent_utils.execute(cmd + [ip])
if stdcode:
data[ip] = 100
else:
pattern = r',\s([0-9]+)%\spacket\sloss'
data[ip] = re.search(pattern, stdout[-2]).groups()[0]
return agent_utils.make_response(code=0, data=data)
except Exception as e:
message = e.message
return agent_utils.make_response(code=1, message=message)
def check_ports_on_br(self, bridge='br-ex', ports=['eth3']):
"""Check ports exist on bridge.
ovs-vsctl list-ports bridge
"""
LOG.info("RPC: check_ports_on_br bridge: %s, ports: %s" %
(bridge, ports))
cmd = ['ovs-vsctl', 'list-ports', bridge]
stdcode, stdout = agent_utils.execute(cmd, root=True)
data = dict()
if stdcode == 0:
for port in ports:
if port in stdout:
data[port] = True
stdout.remove(port)
else:
data[port] = False
return agent_utils.make_response(code=stdcode, data=data)
# execute failed.
message = stdout.pop(0)
return agent_utils.make_response(code=stdcode,
message=message)
def ping(self, ips, boardcast=False,
count=2, timeout=2, interface=None):
"""Ping host or broadcast.
ping host -c 2 -W 2
"""
cmd = ['ping', '-c', str(count), '-W', str(timeout)]
True if not interface else cmd.extend(['-I', interface])
True if not boardcast else cmd.append('-b')
# Batch create subprocess
data = dict()
try:
for ip in ips:
stdcode, stdout = agent_utils.execute(cmd + [ip])
if stdcode:
data[ip] = 100
else:
pattern = r',\s([0-9]+)%\spacket\sloss'
data[ip] = re.search(pattern, stdout[-2]).groups()[0]
return agent_utils.make_response(code=0, data=data)
except Exception as e:
message = e.message
return agent_utils.make_response(code=1, message=message)
def test_execute(self):
expected = "%s\n" % self.test_file
code, result = utils.execute(["ls", self.test_file])
self.assertEqual(0, code)
self.assertEqual(result.pop(), expected.strip('\n'))
def test_execute(self):
expected = "%s\n" % self.test_file
code, result = utils.execute(["ls", self.test_file])
self.assertEqual(0, code)
self.assertEqual(result.pop(), expected.strip('\n'))
