def testGoodHeader(self):
nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_1,
self.mock_naming), EXP_INFO)
nft = str(nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_1 +
GOOD_HEADER_2 + IPV6_TERM_2,
self.mock_naming),
EXP_INFO))
self.assertIn('flush table ip table_filter', nft)
self.assertIn(
'table ip table_filter {\n\tchain chain_name {\n\t\ttype filter '
'hook input priority 0;\n\t\taccept\n\t}\n}', nft)
self.assertIn('flush table ip6 table_filter', nft)
self.assertIn(
'table ip6 table_filter {\n\tchain chain_name {\n\t\ttype filter '
'hook input priority 0;\n\t\tdrop\n\t}\n}', nft)
def testBuildWarningTokens(self):
pol1 = nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_12, self.mock_naming),
EXP_INFO)
st, sst = pol1._BuildTokens()
self.assertEqual(st, SUPPORTED_TOKENS)
self.assertEqual(sst, SUPPORTED_SUB_TOKENS)
def testExpired(self, mock_logging_warn):
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + EXPIRED_TERM, self.mock_naming),
EXP_INFO)
mock_logging_warn.assert_called_once_with(
'Term %s in policy %s is expired '
'and will not be rendered.', 'is_expired', 'chain_name')
def testSourceDestExcludeFromAllIps(self):
source_network = []
source_exclude_network = [nacaddr.IPv4('192.168.0.0/27')]
destination_network = []
destination_exclude_network = [nacaddr.IPv4('10.0.0.0/27')]
self.mock_naming.GetNetAddr.side_effect = [
source_network, source_exclude_network, destination_network,
destination_exclude_network
]
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_11,
self.mock_naming), EXP_INFO))
self.assertIn(
'ip saddr { 0.0.0.0/1, 128.0.0.0/2, 192.0.0.0/9, '
'192.128.0.0/11, 192.160.0.0/13, 192.168.0.32/27, '
'192.168.0.64/26, 192.168.0.128/25, 192.168.1.0/24, '
'192.168.2.0/23, 192.168.4.0/22, 192.168.8.0/21, '
'192.168.16.0/20, 192.168.32.0/19, 192.168.64.0/18, '
'192.168.128.0/17, 192.169.0.0/16, 192.170.0.0/15, '
'192.172.0.0/14, 192.176.0.0/12, 192.192.0.0/10, '
'193.0.0.0/8, 194.0.0.0/7, 196.0.0.0/6, 200.0.0.0/5, '
'208.0.0.0/4, 224.0.0.0/3}', nft)
self.assertIn(
'ip daddr { 0.0.0.0/5, 8.0.0.0/7, 10.0.0.32/27, '
'10.0.0.64/26, 10.0.0.128/25, 10.0.1.0/24, 10.0.2.0/23, '
'10.0.4.0/22, 10.0.8.0/21, 10.0.16.0/20, 10.0.32.0/19, '
'10.0.64.0/18, 10.0.128.0/17, 10.1.0.0/16, 10.2.0.0/15, '
'10.4.0.0/14, 10.8.0.0/13, 10.16.0.0/12, 10.32.0.0/11, '
'10.64.0.0/10, 10.128.0.0/9, 11.0.0.0/8, 12.0.0.0/6, '
'16.0.0.0/4, 32.0.0.0/3, 64.0.0.0/2, 128.0.0.0/1}', nft)
def testVerbatimTerm(self):
nft = str(nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_10,
self.mock_naming), EXP_INFO))
self.assertIn('mary had a little lamb', nft)
# check if another platforms verbatim shows up
self.assertNotIn('mary had a second lamb', nft)
self.assertNotIn('mary had a third lamb', nft)
def testSingleSourceDestIp(self):
source_network = [nacaddr.IPv4('172.16.0.0/24')]
destination_network = [nacaddr.IPv4('10.0.0.0/24')]
self.mock_naming.GetNetAddr.side_effect = [source_network,
destination_network]
nft = str(nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_2,
self.mock_naming), EXP_INFO))
self.assertIn('ip saddr 172.16.0.0/24 ip daddr 10.0.0.0/24', nft)
def testSingleSport(self):
source_ports = ['25']
self.mock_naming.GetServiceByProto.return_value = source_ports
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_8,
self.mock_naming), EXP_INFO))
self.assertIn('sport 25', nft)
def testMultiSport(self):
source_ports = ['25', '80', '6610', '6611', '6612']
self.mock_naming.GetServiceByProto.return_value = source_ports
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_8,
self.mock_naming), EXP_INFO))
self.assertIn('sport { 25, 80, 6610-6612}', nft)
def testCommentOwner(self):
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_4,
self.mock_naming), EXP_INFO))
self.assertIn(
'comment "comment first line comment second line '
'Owner: [email protected]"', nft)
def testCommentTruncate(self, mock_logging_warn):
nft = str(nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_17,
self.mock_naming), EXP_INFO))
mock_logging_warn.assert_called_once_with(
'Term %s in policy is too long (>%d characters) and will be'
' truncated', 'good-term-17', nftables.Term.MAX_CHARACTERS)
# Ensure that the truncate did happen and stripped off the ':'
self.assertIn('comment "%(long_line)s' % {'long_line': 'A' *127}, nft)
def testSingleDport(self):
destination_ports = ['25']
self.mock_naming.GetServiceByProto.return_value = destination_ports
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_7,
self.mock_naming), EXP_INFO))
self.assertIn('dport 25', nft)
def testIcmpv6InetMismatch(self, mock_logging_debug):
str(nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + IPV6_TERM_1,
self.mock_naming), EXP_INFO))
mock_logging_debug.assert_called_once_with('Term inet6-icmp will not be '
'rendered, as it has '
'[u\'icmpv6\'] match specified '
'but the ACL is of inet address '
'family.')
def testExpiring(self, mock_logging_info):
exp_date = datetime.date.today() + datetime.timedelta(weeks=EXP_INFO)
nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + EXPIRING_TERM %
exp_date.strftime('%Y-%m-%d'),
self.mock_naming), EXP_INFO)
mock_logging_info.assert_called_once_with('Term %s in policy %s '
'expires in less than %d weeks.',
'is_expiring', 'chain_name',
EXP_INFO)
def testSourceDestExclude(self):
source_network = [nacaddr.IPv4('192.168.0.0/24')]
source_exclude_network = [nacaddr.IPv4('192.168.0.0/27')]
destination_network = [nacaddr.IPv4('10.0.0.0/24')]
destination_exclude_network = [nacaddr.IPv4('10.0.0.0/27')]
self.mock_naming.GetNetAddr.side_effect = [source_network,
source_exclude_network,
destination_network,
destination_exclude_network]
nft = str(nftables.Nftables(policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_11,
self.mock_naming), EXP_INFO))
self.assertIn('ip saddr { 192.168.0.32/27, 192.168.0.64/26, '
'192.168.0.128/25}', nft)
self.assertIn('ip daddr { 10.0.0.32/27, 10.0.0.64/26, '
'10.0.0.128/25}', nft)
def testCounterTerm(self):
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_16,
self.mock_naming), EXP_INFO))
self.assertIn(' icmp counter accept', nft)
def testLogAndLogNameTerm(self):
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_15,
self.mock_naming), EXP_INFO))
self.assertIn('log prefix "my log prefix: " ', nft)
def testIcmpType(self):
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_9,
self.mock_naming), EXP_INFO))
self.assertIn('icmp type { echo-reply, echo-request}', nft)
def get_acl(inputs):
"""Generates an ACL using Capirca.
Args:
inputs: Module parameters.
Returns:
ACL string.
"""
header_base = '''
header {
comment:: "$comment"
target:: $platform $options
}
'''
result = ""
# Create copy of input options removing any spaces
inputs['options_copy'] = [
str(elem).replace(" ", "") for elem in inputs['filter_options']
]
# Add from/to-zone to 'paloalto' and 'srx'.
if inputs['platform'] in ('paloalto' 'srx'):
if len(inputs['options_copy']) < 2:
raise AnsibleError(
"The number of options for {0} is less than 2".format(
inputs['platform']))
inputs['options_copy'][0] = "from-zone " + inputs['options_copy'][0]
inputs['options_copy'][1] = "to-zone " + inputs['options_copy'][1]
# Create option string for header
inputs['options'] = ' '.join(
[str(elem) for elem in inputs['options_copy']])
header_template = Template(header_base)
header = header_template.safe_substitute(inputs)
defs = naming.Naming(inputs['def_folder'])
terms = open(inputs['pol_file']).read()
pol = policy.ParsePolicy(header + '\n' + terms, defs, optimize=True)
# Exp info in weeks
EXP_INFO = 2
# List from https://github.com/google/capirca/blob/master/capirca/aclgen.py#L202
# Does Python have a Switch statement?
if inputs['platform'] == 'juniper':
result = juniper.Juniper(pol, EXP_INFO)
elif inputs['platform'] == 'cisco':
result = cisco.Cisco(pol, EXP_INFO)
elif inputs['platform'] == 'ciscoasa':
result = ciscoasa.CiscoASA(pol, EXP_INFO)
elif inputs['platform'] == 'brocade':
result = brocade.Brocade(pol, EXP_INFO)
elif inputs['platform'] == 'arista':
result = arista.Arista(pol, EXP_INFO)
elif inputs['platform'] == 'aruba':
result = aruba.Aruba(pol, EXP_INFO)
elif inputs['platform'] == 'ipset':
result = ipset.Ipset(pol, EXP_INFO)
elif inputs['platform'] == 'iptables':
result = iptables.Iptables(pol, EXP_INFO)
elif inputs['platform'] == 'nsxv':
result = nsxv.Nsxv(pol, EXP_INFO)
elif inputs['platform'] == 'packetfilter':
result = packetfilter.PacketFilter(pol, EXP_INFO)
elif inputs['platform'] == 'pcap':
result = pcap.PcapFilter(pol, EXP_INFO)
elif inputs['platform'] == 'speedway':
result = speedway.Speedway(pol, EXP_INFO)
elif inputs['platform'] == 'srx':
result = junipersrx.JuniperSRX(pol, EXP_INFO)
elif inputs['platform'] == 'srxlo':
result = srxlo.SRXlo(pol, EXP_INFO)
elif inputs['platform'] == 'windows_advfirewall':
result = windows_advfirewall.WindowsAdvFirewall(pol, EXP_INFO)
elif inputs['platform'] == 'ciscoxr':
result = ciscoxr.CiscoXR(pol, EXP_INFO)
elif inputs['platform'] == 'nftables':
result = nftables.Nftables(pol, EXP_INFO)
elif inputs['platform'] == 'gce':
result = gce.GCE(pol, EXP_INFO)
elif inputs['platform'] == 'paloalto':
result = paloaltofw.PaloAltoFW(pol, EXP_INFO)
elif inputs['platform'] == 'cloudarmor':
result = cloudarmor.CloudArmor(pol, EXP_INFO)
return str(result)
def RenderFile(base_directory, input_file, output_directory, definitions,
exp_info, write_files):
"""Render a single file.
Args:
base_directory: The base directory to look for acls.
input_file: the name of the input policy file.
output_directory: the directory in which we place the rendered file.
definitions: the definitions from naming.Naming().
exp_info: print a info message when a term is set to expire
in that many weeks.
write_files: a list of file tuples, (output_file, acl_text), to write
"""
logging.debug('rendering file: %s into %s', input_file, output_directory)
pol = None
jcl = False
acl = False
asacl = False
aacl = False
bacl = False
eacl = False
gca = False
gcefw = False
ips = False
ipt = False
spd = False
nsx = False
pcap_accept = False
pcap_deny = False
pf = False
srx = False
jsl = False
nft = False
win_afw = False
xacl = False
paloalto = False
try:
with open(input_file) as f:
conf = f.read()
logging.debug('opened and read %s', input_file)
except IOError as e:
logging.warning('bad file: \n%s', e)
raise
try:
pol = policy.ParsePolicy(conf,
definitions,
optimize=FLAGS.optimize,
base_dir=base_directory,
shade_check=FLAGS.shade_check)
except policy.ShadingError as e:
logging.warning('shading errors for %s:\n%s', input_file, e)
return
except (policy.Error, naming.Error):
raise ACLParserError(
'Error parsing policy file %s:\n%s%s' %
(input_file, sys.exc_info()[0], sys.exc_info()[1]))
platforms = set()
for header in pol.headers:
platforms.update(header.platforms)
if 'juniper' in platforms:
jcl = copy.deepcopy(pol)
if 'cisco' in platforms:
acl = copy.deepcopy(pol)
if 'ciscoasa' in platforms:
asacl = copy.deepcopy(pol)
if 'brocade' in platforms:
bacl = copy.deepcopy(pol)
if 'arista' in platforms:
eacl = copy.deepcopy(pol)
if 'aruba' in platforms:
aacl = copy.deepcopy(pol)
if 'ipset' in platforms:
ips = copy.deepcopy(pol)
if 'iptables' in platforms:
ipt = copy.deepcopy(pol)
if 'nsxv' in platforms:
nsx = copy.deepcopy(pol)
if 'packetfilter' in platforms:
pf = copy.deepcopy(pol)
if 'pcap' in platforms:
pcap_accept = copy.deepcopy(pol)
pcap_deny = copy.deepcopy(pol)
if 'speedway' in platforms:
spd = copy.deepcopy(pol)
if 'srx' in platforms:
srx = copy.deepcopy(pol)
if 'srxlo' in platforms:
jsl = copy.deepcopy(pol)
if 'windows_advfirewall' in platforms:
win_afw = copy.deepcopy(pol)
if 'ciscoxr' in platforms:
xacl = copy.deepcopy(pol)
if 'nftables' in platforms:
nft = copy.deepcopy(pol)
if 'gce' in platforms:
gcefw = copy.deepcopy(pol)
if 'paloalto' in platforms:
paloalto = copy.deepcopy(pol)
if 'cloudarmor' in platforms:
gca = copy.deepcopy(pol)
if not output_directory.endswith('/'):
output_directory += '/'
try:
if jcl:
acl_obj = juniper.Juniper(jcl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if srx:
acl_obj = junipersrx.JuniperSRX(srx, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if acl:
acl_obj = cisco.Cisco(acl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if asacl:
acl_obj = ciscoasa.CiscoASA(asacl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if aacl:
acl_obj = aruba.Aruba(aacl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if bacl:
acl_obj = brocade.Brocade(bacl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if eacl:
acl_obj = arista.Arista(eacl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if ips:
acl_obj = ipset.Ipset(ips, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if ipt:
acl_obj = iptables.Iptables(ipt, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if nsx:
acl_obj = nsxv.Nsxv(nsx, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if spd:
acl_obj = speedway.Speedway(spd, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if pcap_accept:
acl_obj = pcap.PcapFilter(pcap_accept, exp_info)
RenderACL(str(acl_obj), '-accept' + acl_obj.SUFFIX,
output_directory, input_file, write_files)
if pcap_deny:
acl_obj = pcap.PcapFilter(pcap_deny, exp_info, invert=True)
RenderACL(str(acl_obj), '-deny' + acl_obj.SUFFIX, output_directory,
input_file, write_files)
if pf:
acl_obj = packetfilter.PacketFilter(pf, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if win_afw:
acl_obj = windows_advfirewall.WindowsAdvFirewall(win_afw, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if jsl:
acl_obj = srxlo.SRXlo(jsl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if xacl:
acl_obj = ciscoxr.CiscoXR(xacl, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if nft:
acl_obj = nftables.Nftables(nft, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if gcefw:
acl_obj = gce.GCE(gcefw, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if paloalto:
acl_obj = paloaltofw.PaloAltoFW(paloalto, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
if gca:
acl_obj = cloudarmor.CloudArmor(gca, exp_info)
RenderACL(str(acl_obj), acl_obj.SUFFIX, output_directory,
input_file, write_files)
# TODO(robankeny) add additional errors.
except (juniper.Error, junipersrx.Error, cisco.Error, ipset.Error,
iptables.Error, speedway.Error, pcap.Error, aclgenerator.Error,
aruba.Error, nftables.Error, gce.Error, cloudarmor.Error) as e:
raise ACLGeneratorError('Error generating target ACL for %s:\n%s' %
(input_file, e))
def testSingleProtocol(self):
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_5,
self.mock_naming), EXP_INFO))
self.assertIn('ip protocol { ah, esp}', nft)
def testMultiProtocol(self):
nft = str(
nftables.Nftables(
policy.ParsePolicy(GOOD_HEADER_1 + GOOD_TERM_6,
self.mock_naming), EXP_INFO))
self.assertIn('ip protocol ah', nft)
