def eject(self):
cmdline = "ip netns exec %s ip link set dev %s up" \
% (self._netns, self._interface)
LOG.debug('set dev %s up in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
time.sleep(self._wait)
def eject(self):
cmdline = "ip netns exec %s iptables -i %s -D INPUT -j DROP" \
% (self._netns, self._interface)
LOG.debug('take packets coming from %s in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
time.sleep(self._wait)
def eject(self):
cmdline = "ip netns exec %s ip link set dev %s up" \
% (self._netns, self._interface)
LOG.debug('set dev %s up in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
time.sleep(self._wait)
def delete(self):
"""
Delete the interface from bridge
"""
LOG.debug("delete")
brname = self._interface['bridge']['brname']
ifname_peer = self._get_peer_ifname()
cmdline = "brctl delif %s %s" % (brname, ifname_peer)
LOG.debug('Trunk: deleting %s from %s' % (brname, ifname_peer))
try:
subprocess_compat.check_output(cmdline.split())
except subprocess.CalledProcessError:
pass
except OSError:
pass
cmdline = "ip link delete " + ifname_peer
LOG.debug('Trunk: deleting the iface: ' + ifname_peer)
try:
subprocess_compat.check_output(cmdline.split())
except subprocess.CalledProcessError:
pass
except OSError:
pass
def eject(self):
cmdline = "ip netns exec %s iptables -i %s -D INPUT -j DROP" \
% (self._netns, self._interface)
LOG.debug('take packets coming from %s in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
time.sleep(self._wait)
def delete(self):
"""
Delete the interface from bridge
"""
LOG.debug("delete")
brname = self._interface['bridge']['brname']
ifname_peer = self._get_peer_ifname()
cmdline = "brctl delif %s %s" % (brname, ifname_peer)
LOG.debug('Trunk: deleting %s from %s' % (brname, ifname_peer))
try:
subprocess_compat.check_output(cmdline.split())
except subprocess.CalledProcessError:
pass
except OSError:
pass
cmdline = "ip link delete " + ifname_peer
LOG.debug('Trunk: deleting the iface: ' + ifname_peer)
try:
subprocess_compat.check_output(cmdline.split())
except subprocess.CalledProcessError:
pass
except OSError:
pass
def inject(self):
cmdline = "ip netns exec %s ip link set dev %s down" \
% (self._netns, self._interface)
LOG.debug('set dev %s down in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
# check the zk host actually went down
check_zookeeper_host(self._ip, alive=False)
def eject(self):
cmdline = "ip netns exec %s ip link set dev %s up" \
% (self._netns, self._interface)
LOG.debug('set dev %s up in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
# Check the zk host actually went up and in quorum
check_zookeeper_host(self._ip, alive=True)
def inject(self):
cmdline = "ip netns exec %s ip link set dev %s down" \
% (self._netns, self._interface)
LOG.debug('set dev %s down in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
# check the zk host actually went down
check_zookeeper_host(self._ip, alive=False)
def eject(self):
cmdline = "ip netns exec %s ip link set dev %s up" \
% (self._netns, self._interface)
LOG.debug('set dev %s up in %s' \
% (self._interface, self._netns))
subprocess_compat.check_output(cmdline.split())
# Check the zk host actually went up and in quorum
check_zookeeper_host(self._ip, alive=True)
def put_veth_to_mm_ns(future):
self._interface = future.result()
ifname = self._interface['ifname']
cmdline = 'ip link set %s netns %s' % (ifname, nsname)
LOG.debug('VethNs: putting host veth to MM ns ' + cmdline)
subprocess_compat.check_output(cmdline.split())
cmdline = 'ip netns exec %s ip link set %s up' % (nsname,
ifname)
LOG.debug('VethNs: setting IF up ' + cmdline)
subprocess_compat.check_output(cmdline.split())
def delete(self):
"""
Delete this veth + NS
"""
cmdline = "ip netns del " + self._get_nsname()
LOG.debug('VethNs: deleting the ns: ' + cmdline)
try:
subprocess_compat.check_output(cmdline.split())
except subprocess.CalledProcessError as e:
LOG.exception(e)
except OSError as e:
LOG.exception(e)
def delete(self):
"""
Delete this veth + NS
"""
cmdline = "ip netns del " + self._get_nsname()
LOG.debug('VethNs: deleting the ns: ' + cmdline)
try:
subprocess_compat.check_output(cmdline.split())
except subprocess.CalledProcessError as e:
LOG.exception(e)
except OSError as e:
LOG.exception(e)
def _clear():
cmdline = ("for ns in `ip netns | grep -- ns-if-`; "
"do sudo -i ip netns delete $ns 2>/dev/null; done")
logging.debug("cmdline: " + cmdline)
try:
subprocess_compat.check_output(cmdline, shell=True)
except subprocess.CalledProcessError:
pass
cmdline = ("for iface in `ip link | grep -- if- | cut -d ':' -f 2`; "
"do sudo -i ip link delete $iface 2>/dev/null; done")
logging.debug("cmdline: " + cmdline)
try:
subprocess_compat.check_output(cmdline, shell=True)
except subprocess.CalledProcessError:
pass
def execute(self, cmdline, timeout=None):
"""Executes cmdline inside the namespace
Args:
cmdline: command line string that'll be executed in the network
namespace.
timeout: timeout in second
Returns:
output as a bytestring
Raises:
subprocess.CalledProcessError: when the command exists with non-zero
value, including timeout.
OSError: when the executable is not found or some other error
invoking
"""
cmdline = self._process_cmdline(cmdline, timeout)
LOG.debug('VethNs: executing command: %s', cmdline)
#NOTE(tomoe): I know shell=True is insecure, but I trust people here :)
result = subprocess_compat.check_output(cmdline, shell=True)
LOG.debug('Result=%r', result)
return result
def execute(self, cmdline, timeout=None):
"""Executes cmdline inside the namespace
Args:
cmdline: command line string that'll be executed in the network
namespace.
timeout: timeout in second
Returns:
output as a bytestring
Raises:
subprocess.CalledProcessError: when the command exists with non-zero
value, including timeout.
OSError: when the executable is not found or some other error
invoking
"""
cmdline = self._process_cmdline(cmdline, timeout)
LOG.debug('VethNs: executing command: %s', cmdline)
#NOTE(tomoe): I know shell=True is insecure, but I trust people here :)
result = subprocess_compat.check_output(cmdline, shell=True)
LOG.debug('Result=%r', result)
return result
def _clear():
cmdline = ("for ns in `ip netns | grep -- ns-if-`; "
"do sudo -i ip netns delete $ns 2>/dev/null; done")
logging.debug("cmdline: " + cmdline)
try:
subprocess_compat.check_output(cmdline, shell=True)
except subprocess.CalledProcessError:
pass
cmdline = ("for iface in `ip link | grep -- if- | cut -d ':' -f 2`; "
"do sudo -i ip link delete $iface 2>/dev/null; done")
logging.debug("cmdline: " + cmdline)
try:
subprocess_compat.check_output(cmdline, shell=True)
except subprocess.CalledProcessError:
pass
def _get_midolman_logs_for_test(self, test_id):
"""Returns a string that contains midolman logs relevant
to the test"""
markers = self._get_markers_for_test(test_id)
cmdline = self.tools_path + '/' + \
"dump_midolman_logs_for_test.sh '%s' '%s' '%s'" % (
markers['start'], markers['end'], test_id)
return subprocess_compat.check_output(cmdline, shell=True)
def _get_midolman_logs_for_test(self, test_id):
"""Returns a string that contains midolman logs relevant
to the test"""
markers = self._get_markers_for_test(test_id)
cmdline = self.tools_path + '/' + \
"dump_midolman_logs_for_test.sh '%s' '%s' '%s'" % (
markers['start'], markers['end'], test_id)
return subprocess_compat.check_output(cmdline, shell=True)
def create(self):
LOG.debug('create')
brname = self._interface['bridge']['brname']
ifname = self._get_ifname()
ifname_peer = self._get_peer_ifname()
#NOTE: may want to have idempotent version?
try :
# create a veth pair
cmdline = "ip link add dev %s type veth peer name %s" % (
ifname, ifname_peer)
LOG.debug('VethNs: creating a veth pair: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# add an end of the pair to bridge
ifname_peer = self._get_peer_ifname()
LOG.debug('Trunk: adding %s to %s' % (brname, ifname_peer))
cmdline = "brctl addif %s %s" % (brname, ifname_peer)
subprocess_compat.check_output(cmdline.split())
cmdline = "ip link set dev %s up" % (ifname_peer,)
subprocess_compat.check_output(cmdline.split())
return self._interface
except Exception as e:
LOG.error('Either creating veth or namespace failed: ' + str(e))
raise e
def create(self):
LOG.debug('create')
brname = self._interface['bridge']['brname']
ifname = self._get_ifname()
ifname_peer = self._get_peer_ifname()
#NOTE: may want to have idempotent version?
try:
# create a veth pair
cmdline = "ip link add dev %s type veth peer name %s" % (
ifname, ifname_peer)
LOG.debug('VethNs: creating a veth pair: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# add an end of the pair to bridge
ifname_peer = self._get_peer_ifname()
LOG.debug('Trunk: adding %s to %s' % (brname, ifname_peer))
cmdline = "brctl addif %s %s" % (brname, ifname_peer)
subprocess_compat.check_output(cmdline.split())
cmdline = "ip link set dev %s up" % (ifname_peer, )
subprocess_compat.check_output(cmdline.split())
return self._interface
except Exception as e:
LOG.error('Either creating veth or namespace failed: ' + str(e))
raise e
def report(self, stream):
"""Add per suite logs right at the end of a test run"""
cmd = self.tools_path + '/' + 'dump_per_suite_logs.sh'
out = subprocess_compat.check_output(cmd)
stream.writeln(out)
def report(self, stream):
"""Add per suite logs right at the end of a test run"""
cmd = self.tools_path + '/' + 'dump_per_suite_logs.sh'
out = subprocess_compat.check_output(cmd)
stream.writeln(out)
def _mark_mm_logs(self, marker_text):
cmdline = self.tools_path + '/' + 'mark_mm_logs.sh ' + marker_text
subprocess_compat.check_output(cmdline, shell=True)
def _get_per_test_logs(self, test):
"""Returns mmm log in string"""
cmd = self.tools_path + '/' + 'dump_per_test_logs.sh'
return subprocess_compat.check_output(cmd)
def stop_midolman_agents():
"""Stops all Midolman agents."""
subprocess_compat.check_output('cd %s; ./stop' % get_midolman_script_dir(),
shell=True)
def _get_per_test_logs(self, test):
"""Returns mmm log in string"""
cmd = self.tools_path + '/' + 'dump_per_test_logs.sh'
return subprocess_compat.check_output(cmd)
def stop_midolman_agents():
"""Stops all Midolman agents."""
subprocess_compat.check_output(
'cd %s; ./stop' % get_midolman_script_dir(), shell=True)
def _mark_mm_logs(self, marker_text):
cmdline = self.tools_path + '/' + 'mark_mm_logs.sh ' + marker_text
subprocess_compat.check_output(cmdline, shell=True)
def brctl(instr, trunk):
cmd = 'brctl %s brv0 %s' % (instr, ifname(trunk))
subprocess_compat.check_output(cmd.split())
def create(self):
"""Create a veth + network namespace.
Args:
N/A
Returns:
None
Raises:
subprocess.CalledProcessError: when one of the commands to set
up the veth+ns environment fails
"""
LOG.debug('create')
ifname = self._get_ifname()
ifname_peer = self._get_peer_ifname()
#NOTE: may want to have idempotent version?
try:
# create a veth pair
cmdline = "ip link add dev %s type veth peer name %s" % (
ifname, ifname_peer)
LOG.debug('VethNs: creating a veth pair: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# create a network namespace
cmdline = "ip netns add " + self._get_nsname()
LOG.debug('VethNs: creating a network namespace: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
if not self._interface.get('ipv6_addr'):
# disable ipv6 if there's no address configured
cmdline = 'sysctl -w net.ipv6.conf.default.disable_ipv6=1'
self.execute(cmdline)
# configure hw address if any
if self._interface.get('hw_addr'):
cmdline = 'ip link set address %s dev %s' % (
self._interface['hw_addr'], ifname_peer)
LOG.debug('VethNs: setting HW address: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# put the veth peer IF to the namespace that's just created.
cmdline = "ip link set dev %s up netns %s" % (ifname_peer,
self._get_nsname())
LOG.debug('VethNs: putting a veth to a ns: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# configure ipv4 address if any
for addr in self._interface.get('ipv4_addr'):
cmdline = 'ip addr add %s dev %s' % (addr, ifname_peer)
LOG.debug('VethNs: adding ip address in the ns: ' + cmdline)
self.execute(cmdline)
# add default route if gateway is configured
if self._interface.get('ipv4_gw'):
cmdline = 'ip netns exec %s ip route add default via %s' %\
(self._get_nsname(), self._interface['ipv4_gw'])
LOG.debug('VethNs: adding default route:' + cmdline)
self.execute(cmdline)
# takes care of ipv6 address
if self._interface.get('ipv6_addr'):
#TODO
pass
else:
cmdline = 'ip -6 addr flush dev %s' % ifname_peer
LOG.debug('VethNs: flushing ipv6 address: ' + cmdline)
self.execute(cmdline)
# set MTU if any
if self._interface.get('mtu'):
cmdline = "ip link set mtu %s dev %s" % (
self._interface['mtu'], ifname_peer)
LOG.debug('VethNs: configuring mtu in the ns: ' + cmdline)
self.execute(cmdline)
return self._interface
except Exception as e:
LOG.error('Either creating veth or namespace failed: ' + str(e))
raise e
def create(self):
"""Create a veth + network namespace.
Args:
N/A
Returns:
None
Raises:
subprocess.CalledProcessError: when one of the commands to set
up the veth+ns environment fails
"""
LOG.debug('create')
ifname = self._get_ifname()
ifname_peer = self._get_peer_ifname()
#NOTE: may want to have idempotent version?
try:
# create a veth pair
cmdline = "ip link add dev %s type veth peer name %s" % (
ifname, ifname_peer)
LOG.debug('VethNs: creating a veth pair: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# create a network namespace
cmdline = "ip netns add " + self._get_nsname()
LOG.debug('VethNs: creating a network namespace: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
if not self._interface.get('ipv6_addr'):
# disable ipv6 if there's no address configured
cmdline = 'sysctl -w net.ipv6.conf.default.disable_ipv6=1'
self.execute(cmdline)
# configure hw address if any
if self._interface.get('hw_addr'):
cmdline = 'ip link set address %s dev %s' % (
self._interface['hw_addr'],
ifname_peer)
LOG.debug('VethNs: setting HW address: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# put the veth peer IF to the namespace that's just created.
cmdline = "ip link set dev %s up netns %s" % (ifname_peer,
self._get_nsname())
LOG.debug('VethNs: putting a veth to a ns: ' + cmdline)
subprocess_compat.check_output(cmdline.split())
# configure ipv4 address if any
for addr in self._interface.get('ipv4_addr'):
cmdline = 'ip addr add %s dev %s' % (addr, ifname_peer)
LOG.debug('VethNs: adding ip address in the ns: ' + cmdline)
self.execute(cmdline)
# add default route if gateway is configured
if self._interface.get('ipv4_gw'):
cmdline = 'ip netns exec %s ip route add default via %s' %\
(self._get_nsname(), self._interface['ipv4_gw'])
LOG.debug('VethNs: adding default route:' + cmdline)
self.execute(cmdline)
# takes care of ipv6 address
if self._interface.get('ipv6_addr'):
#TODO
pass
else:
cmdline = 'ip -6 addr flush dev %s' % ifname_peer
LOG.debug('VethNs: flushing ipv6 address: ' + cmdline)
self.execute(cmdline)
# set MTU if any
if self._interface.get('mtu'):
cmdline = "ip link set mtu %s dev %s" % (
self._interface['mtu'],
ifname_peer)
LOG.debug('VethNs: configuring mtu in the ns: ' + cmdline)
self.execute(cmdline)
return self._interface
except Exception as e:
LOG.error('Either creating veth or namespace failed: ' + str(e))
raise e
