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#
# -*- coding: utf-8 -*-
# Copyright 2019 Red Hat
# GNU General Public License v3.0+
# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
"""
The eos acls fact class
It is in this file the configuration is collected from the device
for a given resource, parsed, and the facts tree is populated
based on the configuration.
"""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import re
from copy import deepcopy
from ansible.module_utils.network.common import utils
from ansible.module_utils.network.eos.argspec.acls.acls import AclsArgs
class AclsFacts(object):
""" The eos acls fact class
"""
def __init__(self, module, subspec='config', options='options'):
self._module = module
self.argument_spec = AclsArgs.argument_spec
spec = deepcopy(self.argument_spec)
if subspec:
if options:
facts_argument_spec = spec[subspec][options]
else:
facts_argument_spec = spec[subspec]
else:
facts_argument_spec = spec
self.generated_spec = utils.generate_dict(facts_argument_spec)
def get_device_data(self, connection):
return connection.get('show running-config | section access-list')
def populate_facts(self, connection, ansible_facts, data=None):
""" Populate the facts for acls
:param connection: the device connection
:param ansible_facts: Facts dictionary
:param data: previously collected conf
:rtype: dictionary
:returns: facts
"""
if not data:
data = self.get_device_data(connection)
# split the config into instances of the resource
find_pattern = r'(?:^|\n)(?:ip|ipv6) access\-list.*?(?=(?:^|\n)(?:ip|ipv6) access\-list|$)'
resources = [p for p in re.findall(find_pattern,
data,
re.DOTALL)]
objs = []
ipv4list = []
ipv6list = []
for resource in resources:
if "ipv6" in resource:
ipv6list.append(resource)
else:
ipv4list.append(resource)
ipv4list = ["\n".join(ipv4list)]
ipv6list = ["\n".join(ipv6list)]
for resource in ipv4list:
if resource:
obj = self.render_config(self.generated_spec, resource)
if obj:
objs.append(obj)
for resource in ipv6list:
if resource:
obj = self.render_config(self.generated_spec, resource)
if obj:
objs.append(obj)
ansible_facts['ansible_network_resources'].pop('acls', None)
facts = {}
if objs:
facts['acls'] = []
params = utils.validate_config(self.argument_spec, {'config': objs})
for cfg in params['config']:
facts['acls'].append(utils.remove_empties(cfg))
ansible_facts['ansible_network_resources'].update(facts)
return ansible_facts
def render_config(self, spec, conf):
"""
Render config as dictionary structure and delete keys
from spec for null values
:param spec: The facts tree, generated from the argspec
:param conf: The configuration
:rtype: dictionary
:returns: The generated config
"""
config = deepcopy(spec)
afi_list = []
acls_list = []
name_dict = {}
standard = 0
operator = ['eq', 'lt', 'neq', 'range', 'gt']
flags = ['ack', 'established', 'fin', 'psh', 'rst', 'syn', 'urg']
others = ['hop_limit', 'log', 'ttl', 'fragments', 'tracked']
for dev_config in conf.split('\n'):
ace_dict = {}
if not dev_config:
continue
if dev_config == '!':
continue
dev_config = dev_config.strip()
matches = re.findall(r'(ip.*?) access-list (.*)', dev_config)
if matches:
afi = "ipv4" if matches[0][0] == "ip" else "ipv6"
ace_list = []
if bool(name_dict):
acls_list.append(name_dict.copy())
name_dict = {}
if afi not in afi_list:
afi_list.append(afi)
config.update({"afi": afi})
if "standard" in matches[0][1]:
standard = 1
name = matches[0][1].split()
name_dict.update({"name": name[1]})
name_dict.update({"standard": True})
else:
name_dict.update({"name": matches[0][1]})
else:
source_dict = {}
dest_dict = {}
dev_config = re.sub('-', '_', dev_config)
dev_config_remainder = dev_config.split()
if "fragment_rules" in dev_config:
ace_dict.update({"sequence": dev_config_remainder.pop(0)})
ace_dict.update({"fragment_rules": True})
if "remark" in dev_config:
ace_dict.update({"sequence": dev_config_remainder.pop(0)})
ace_dict.update({"remark": ' '.join(dev_config_remainder[1:])})
seq = re.search(r'\d+ (permit|deny) .*', dev_config)
if seq:
ace_dict.update({"sequence": dev_config_remainder.pop(0)})
ace_dict.update({"grant": dev_config_remainder.pop(0)})
if dev_config_remainder[0] == "vlan":
vlan_str = ""
dev_config_remainder.pop(0)
if dev_config_remainder[0] == "inner":
vlan_str = dev_config_remainder.pop(0) + " "
vlan_str = dev_config_remainder.pop(0) + " " + dev_config_remainder.pop(0)
ace_dict.update({"vlan": vlan_str})
if not standard:
protocol = dev_config_remainder[0]
ace_dict.update({"protocol": dev_config_remainder.pop(0)})
src_prefix = re.search(r'/', dev_config_remainder[0])
src_address = re.search(r'[a-z\d:\.]+', dev_config_remainder[0])
if dev_config_remainder[0] == "host":
source_dict.update({"host": dev_config_remainder.pop(1)})
dev_config_remainder.pop(0)
elif dev_config_remainder[0] == "any":
source_dict.update({"any": True})
dev_config_remainder.pop(0)
elif src_prefix:
source_dict.update({"subnet_address": dev_config_remainder.pop(0)})
elif src_address:
source_dict.update({"address": dev_config_remainder.pop(0)})
source_dict.update({"wildcard_bits": dev_config_remainder.pop(0)})
if dev_config_remainder:
if dev_config_remainder[0] in operator:
port_dict = {}
src_port = ""
src_opr = dev_config_remainder.pop(0)
portlist = dev_config_remainder[:]
for config_remainder in portlist:
addr = re.search(r'[\.\:]', config_remainder)
if config_remainder == "any" or config_remainder == "host" or addr:
break
else:
src_port = src_port + " " + config_remainder
dev_config_remainder.pop(0)
src_port = src_port.strip()
port_dict.update({src_opr: src_port})
source_dict.update({"port_protocol": port_dict})
ace_dict.update({"source": source_dict})
if not dev_config_remainder or standard:
if dev_config_remainder and "log" in dev_config_remainder:
ace_dict.update({"log": True})
if bool(ace_dict):
ace_list.append(ace_dict.copy())
if len(ace_list):
name_dict = name_dict.copy()
name_dict.update({"aces": ace_list[:]})
# acls_list.append(name_dict)
continue
dest_prefix = re.search(r'/', dev_config_remainder[0])
dest_address = re.search(r'[a-z\d:\.]+', dev_config_remainder[0])
if dev_config_remainder[0] == "host":
dest_dict.update({"host": dev_config_remainder.pop(1)})
dev_config_remainder.pop(0)
elif dev_config_remainder[0] == "any":
dest_dict.update({"any": True})
dev_config_remainder.pop(0)
elif dest_prefix:
dest_dict.update({"subnet_address": dev_config_remainder.pop(0)})
elif dest_address:
dest_dict.update({"address": dev_config_remainder.pop(0)})
dest_dict.update({"wildcard_bits": dev_config_remainder.pop(0)})
if dev_config_remainder:
if dev_config_remainder[0] in operator:
port_dict = {}
dest_port = ""
dest_opr = dev_config_remainder.pop(0)
portlist = dev_config_remainder[:]
for config_remainder in portlist:
if config_remainder in operator or config_remainder in others:
break
else:
dest_port = dest_port + " " + config_remainder
dev_config_remainder.pop(0)
dest_port = dest_port.strip()
port_dict.update({dest_opr: dest_port})
dest_dict.update({"port_protocol": port_dict})
ace_dict.update({"destination": dest_dict})
protocol_option_dict = {}
tcp_dict = {}
icmp_dict = {}
ip_dict = {}
if not dev_config_remainder:
if bool(ace_dict):
ace_list.append(ace_dict.copy())
if len(ace_list):
name_dict = name_dict.copy()
name_dict.update({"aces": ace_list[:]})
# acls_list.append(name_dict)
continue
if protocol == "tcp" or "6":
protocol = "tcp"
flags_dict = {}
if dev_config_remainder[0] in flags:
flaglist = dev_config_remainder.copy()
for config_remainder in flaglist:
if config_remainder not in flags:
break
else:
flags_dict.update({config_remainder: True})
dev_config_remainder.pop(0)
if bool(flags_dict):
tcp_dict.update({"flags": flags_dict})
if bool(tcp_dict):
protocol_option_dict.update({"tcp": tcp_dict})
if protocol == "icmp" or protocol == "icmpv6" \
or protocol == "1" or protocol == "58":
if protocol == "1":
protocol = "icmp"
elif protocol == "58":
protocol = "icmpv6"
if dev_config_remainder[0] not in others:
icmp_dict.update({dev_config_remainder[0]: True})
dev_config_remainder.pop(0)
if bool(icmp_dict):
protocol_option_dict.update({protocol: icmp_dict})
if protocol == "ip" or "ipv6":
if dev_config_remainder[0] == "nexthop_group":
dev_config_remainder.pop(0)
ip_dict.update({"nexthop_group": dev_config_remainder.pop(0)})
if bool(ip_dict):
protocol_option_dict.update({protocol: ip_dict})
if bool(protocol_option_dict):
ace_dict.update({"protocol_options": protocol_option_dict})
if dev_config_remainder[0] == "ttl":
dev_config_remainder.pop(0)
op = dev_config_remainder.pop(0)
ttl_dict = {op: dev_config_remainder.pop(0)}
ace_dict.update({"ttl": ttl_dict})
for config_remainder in dev_config_remainder:
if config_remainder in others:
if config_remainder == "hop_limit":
hop_index = dev_config_remainder.index(config_remainder)
hoplimit_dict = {dev_config_remainder[hop_index + 1]: dev_config_remainder[hop_index + 2]}
ace_dict.update({"hop_limit": hoplimit_dict})
dev_config_remainder.pop(0)
continue
ace_dict.update({config_remainder: True})
dev_config_remainder.pop(0)
if dev_config_remainder:
config.update({"line": dev_config})
return utils.remove_empties(config)
if bool(ace_dict):
ace_list.append(ace_dict.copy())
if len(ace_list):
name_dict = name_dict.copy()
name_dict.update({"aces": ace_list[:]})
acls_list.append(name_dict.copy())
config.update({"acls": acls_list})
return utils.remove_empties(config)
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