diff options
Diffstat (limited to 'src/op_mode/firewall.py')
| -rwxr-xr-x | src/op_mode/firewall.py | 337 |
1 files changed, 213 insertions, 124 deletions
diff --git a/src/op_mode/firewall.py b/src/op_mode/firewall.py index 950feb625..11cbd977d 100755 --- a/src/op_mode/firewall.py +++ b/src/op_mode/firewall.py @@ -21,65 +21,31 @@ import re import tabulate from vyos.config import Config -from vyos.util import cmd -from vyos.util import dict_search_args +from vyos.utils.process import cmd +from vyos.utils.dict import dict_search_args -def get_firewall_interfaces(firewall, name=None, ipv6=False): - directions = ['in', 'out', 'local'] - - if 'interface' in firewall: - for ifname, if_conf in firewall['interface'].items(): - for direction in directions: - if direction not in if_conf: - continue - - fw_conf = if_conf[direction] - name_str = f'({ifname},{direction})' - - if 'name' in fw_conf: - fw_name = fw_conf['name'] - - if not name: - firewall['name'][fw_name]['interface'].append(name_str) - elif not ipv6 and name == fw_name: - firewall['interface'].append(name_str) - - if 'ipv6_name' in fw_conf: - fw_name = fw_conf['ipv6_name'] - - if not name: - firewall['ipv6_name'][fw_name]['interface'].append(name_str) - elif ipv6 and name == fw_name: - firewall['interface'].append(name_str) - - return firewall - -def get_config_firewall(conf, name=None, ipv6=False, interfaces=True): +def get_config_firewall(conf, hook=None, priority=None, ipv6=False): config_path = ['firewall'] - if name: - config_path += ['ipv6-name' if ipv6 else 'name', name] + if hook: + config_path += ['ipv6' if ipv6 else 'ipv4', hook] + if priority: + config_path += [priority] firewall = conf.get_config_dict(config_path, key_mangling=('-', '_'), get_first_key=True, no_tag_node_value_mangle=True) - if firewall and interfaces: - if name: - firewall['interface'] = [] - else: - if 'name' in firewall: - for fw_name, name_conf in firewall['name'].items(): - name_conf['interface'] = [] - if 'ipv6_name' in firewall: - for fw_name, name_conf in firewall['ipv6_name'].items(): - name_conf['interface'] = [] - - get_firewall_interfaces(firewall, name, ipv6) return firewall -def get_nftables_details(name, ipv6=False): +def get_nftables_details(hook, priority, ipv6=False): suffix = '6' if ipv6 else '' + aux = 'IPV6_' if ipv6 else '' name_prefix = 'NAME6_' if ipv6 else 'NAME_' - command = f'sudo nft list chain ip{suffix} vyos_filter {name_prefix}{name}' + if hook == 'name' or hook == 'ipv6-name': + command = f'sudo nft list chain ip{suffix} vyos_filter {name_prefix}{priority}' + else: + up_hook = hook.upper() + command = f'sudo nft list chain ip{suffix} vyos_filter VYOS_{aux}{up_hook}_{priority}' + try: results = cmd(command) except: @@ -87,7 +53,7 @@ def get_nftables_details(name, ipv6=False): out = {} for line in results.split('\n'): - comment_search = re.search(rf'{name}[\- ](\d+|default-action)', line) + comment_search = re.search(rf'{priority}[\- ](\d+|default-action)', line) if not comment_search: continue @@ -102,18 +68,15 @@ def get_nftables_details(name, ipv6=False): out[rule_id] = rule return out -def output_firewall_name(name, name_conf, ipv6=False, single_rule_id=None): +def output_firewall_name(hook, priority, firewall_conf, ipv6=False, single_rule_id=None): ip_str = 'IPv6' if ipv6 else 'IPv4' - print(f'\n---------------------------------\n{ip_str} Firewall "{name}"\n') + print(f'\n---------------------------------\n{ip_str} Firewall "{hook} {priority}"\n') - if name_conf['interface']: - print('Active on: {0}\n'.format(" ".join(name_conf['interface']))) - - details = get_nftables_details(name, ipv6) + details = get_nftables_details(hook, priority, ipv6) rows = [] - if 'rule' in name_conf: - for rule_id, rule_conf in name_conf['rule'].items(): + if 'rule' in firewall_conf: + for rule_id, rule_conf in firewall_conf['rule'].items(): if single_rule_id and rule_id != single_rule_id: continue @@ -128,8 +91,8 @@ def output_firewall_name(name, name_conf, ipv6=False, single_rule_id=None): row.append(rule_details['conditions']) rows.append(row) - if 'default_action' in name_conf and not single_rule_id: - row = ['default', name_conf['default_action'], 'all'] + if 'default_action' in firewall_conf and not single_rule_id: + row = ['default', firewall_conf['default_action'], 'all'] if 'default-action' in details: rule_details = details['default-action'] row.append(rule_details.get('packets', 0)) @@ -140,26 +103,72 @@ def output_firewall_name(name, name_conf, ipv6=False, single_rule_id=None): header = ['Rule', 'Action', 'Protocol', 'Packets', 'Bytes', 'Conditions'] print(tabulate.tabulate(rows, header) + '\n') -def output_firewall_name_statistics(name, name_conf, ipv6=False, single_rule_id=None): +def output_firewall_name_statistics(hook, prior, prior_conf, ipv6=False, single_rule_id=None): ip_str = 'IPv6' if ipv6 else 'IPv4' - print(f'\n---------------------------------\n{ip_str} Firewall "{name}"\n') - - if name_conf['interface']: - print('Active on: {0}\n'.format(" ".join(name_conf['interface']))) + print(f'\n---------------------------------\n{ip_str} Firewall "{hook} {prior}"\n') - details = get_nftables_details(name, ipv6) + details = get_nftables_details(hook, prior, ipv6) rows = [] - if 'rule' in name_conf: - for rule_id, rule_conf in name_conf['rule'].items(): + if 'rule' in prior_conf: + for rule_id, rule_conf in prior_conf['rule'].items(): if single_rule_id and rule_id != single_rule_id: continue if 'disable' in rule_conf: continue - source_addr = dict_search_args(rule_conf, 'source', 'address') or '0.0.0.0/0' - dest_addr = dict_search_args(rule_conf, 'destination', 'address') or '0.0.0.0/0' + # Get source + source_addr = dict_search_args(rule_conf, 'source', 'address') + if not source_addr: + source_addr = dict_search_args(rule_conf, 'source', 'group', 'address_group') + if not source_addr: + source_addr = dict_search_args(rule_conf, 'source', 'group', 'network_group') + if not source_addr: + source_addr = dict_search_args(rule_conf, 'source', 'group', 'domain_group') + if not source_addr: + source_addr = dict_search_args(rule_conf, 'source', 'fqdn') + if not source_addr: + source_addr = dict_search_args(rule_conf, 'source', 'geoip', 'country_code') + if source_addr: + source_addr = str(source_addr)[1:-1].replace('\'','') + if 'inverse_match' in dict_search_args(rule_conf, 'source', 'geoip'): + source_addr = 'NOT ' + str(source_addr) + if not source_addr: + source_addr = 'any' + + # Get destination + dest_addr = dict_search_args(rule_conf, 'destination', 'address') + if not dest_addr: + dest_addr = dict_search_args(rule_conf, 'destination', 'group', 'address_group') + if not dest_addr: + dest_addr = dict_search_args(rule_conf, 'destination', 'group', 'network_group') + if not dest_addr: + dest_addr = dict_search_args(rule_conf, 'destination', 'group', 'domain_group') + if not dest_addr: + dest_addr = dict_search_args(rule_conf, 'destination', 'fqdn') + if not dest_addr: + dest_addr = dict_search_args(rule_conf, 'destination', 'geoip', 'country_code') + if dest_addr: + dest_addr = str(dest_addr)[1:-1].replace('\'','') + if 'inverse_match' in dict_search_args(rule_conf, 'destination', 'geoip'): + dest_addr = 'NOT ' + str(dest_addr) + if not dest_addr: + dest_addr = 'any' + + # Get inbound interface + iiface = dict_search_args(rule_conf, 'inbound_interface', 'interface_name') + if not iiface: + iiface = dict_search_args(rule_conf, 'inbound_interface', 'interface_group') + if not iiface: + iiface = 'any' + + # Get outbound interface + oiface = dict_search_args(rule_conf, 'outbound_interface', 'interface_name') + if not oiface: + oiface = dict_search_args(rule_conf, 'outbound_interface', 'interface_group') + if not oiface: + oiface = 'any' row = [rule_id] if rule_id in details: @@ -172,9 +181,26 @@ def output_firewall_name_statistics(name, name_conf, ipv6=False, single_rule_id= row.append(rule_conf['action']) row.append(source_addr) row.append(dest_addr) + row.append(iiface) + row.append(oiface) rows.append(row) - if 'default_action' in name_conf and not single_rule_id: + + if hook in ['input', 'forward', 'output']: + row = ['default'] + row.append('N/A') + row.append('N/A') + if 'default_action' in prior_conf: + row.append(prior_conf['default_action']) + else: + row.append('accept') + row.append('any') + row.append('any') + row.append('any') + row.append('any') + rows.append(row) + + elif 'default_action' in prior_conf and not single_rule_id: row = ['default'] if 'default-action' in details: rule_details = details['default-action'] @@ -183,13 +209,15 @@ def output_firewall_name_statistics(name, name_conf, ipv6=False, single_rule_id= else: row.append('0') row.append('0') - row.append(name_conf['default_action']) - row.append('0.0.0.0/0') # Source - row.append('0.0.0.0/0') # Dest + row.append(prior_conf['default_action']) + row.append('any') # Source + row.append('any') # Dest + row.append('any') # inbound-interface + row.append('any') # outbound-interface rows.append(row) if rows: - header = ['Rule', 'Packets', 'Bytes', 'Action', 'Source', 'Destination'] + header = ['Rule', 'Packets', 'Bytes', 'Action', 'Source', 'Destination', 'Inbound-Interface', 'Outbound-interface'] print(tabulate.tabulate(rows, header) + '\n') def show_firewall(): @@ -201,52 +229,104 @@ def show_firewall(): if not firewall: return - if 'name' in firewall: - for name, name_conf in firewall['name'].items(): - output_firewall_name(name, name_conf, ipv6=False) + if 'ipv4' in firewall: + for hook, hook_conf in firewall['ipv4'].items(): + for prior, prior_conf in firewall['ipv4'][hook].items(): + output_firewall_name(hook, prior, prior_conf, ipv6=False) + + if 'ipv6' in firewall: + for hook, hook_conf in firewall['ipv6'].items(): + for prior, prior_conf in firewall['ipv6'][hook].items(): + output_firewall_name(hook, prior, prior_conf, ipv6=True) - if 'ipv6_name' in firewall: - for name, name_conf in firewall['ipv6_name'].items(): - output_firewall_name(name, name_conf, ipv6=True) +def show_firewall_family(family): + print(f'Rulesets {family} Information') -def show_firewall_name(name, ipv6=False): + conf = Config() + firewall = get_config_firewall(conf) + + if not firewall: + return + + for hook, hook_conf in firewall[family].items(): + for prior, prior_conf in firewall[family][hook].items(): + if family == 'ipv6': + output_firewall_name(hook, prior, prior_conf, ipv6=True) + else: + output_firewall_name(hook, prior, prior_conf, ipv6=False) + +def show_firewall_name(hook, priority, ipv6=False): print('Ruleset Information') conf = Config() - firewall = get_config_firewall(conf, name, ipv6) + firewall = get_config_firewall(conf, hook, priority, ipv6) if firewall: - output_firewall_name(name, firewall, ipv6) + output_firewall_name(hook, priority, firewall, ipv6) -def show_firewall_rule(name, rule_id, ipv6=False): +def show_firewall_rule(hook, priority, rule_id, ipv6=False): print('Rule Information') conf = Config() - firewall = get_config_firewall(conf, name, ipv6) + firewall = get_config_firewall(conf, hook, priority, ipv6) if firewall: - output_firewall_name(name, firewall, ipv6, rule_id) + output_firewall_name(hook, priority, firewall, ipv6, rule_id) def show_firewall_group(name=None): conf = Config() - firewall = get_config_firewall(conf, interfaces=False) + firewall = get_config_firewall(conf) if 'group' not in firewall: return def find_references(group_type, group_name): out = [] - for name_type in ['name', 'ipv6_name']: - if name_type not in firewall: - continue - for name, name_conf in firewall[name_type].items(): - if 'rule' not in name_conf: - continue - for rule_id, rule_conf in name_conf['rule'].items(): - source_group = dict_search_args(rule_conf, 'source', 'group', group_type) - dest_group = dict_search_args(rule_conf, 'destination', 'group', group_type) - if source_group and group_name == source_group: - out.append(f'{name}-{rule_id}') - elif dest_group and group_name == dest_group: - out.append(f'{name}-{rule_id}') + family = [] + if group_type in ['address_group', 'network_group']: + family = ['ipv4'] + elif group_type == 'ipv6_address_group': + family = ['ipv6'] + group_type = 'address_group' + elif group_type == 'ipv6_network_group': + family = ['ipv6'] + group_type = 'network_group' + else: + family = ['ipv4', 'ipv6'] + + for item in family: + for name_type in ['name', 'ipv6_name', 'forward', 'input', 'output']: + if item in firewall: + if name_type not in firewall[item]: + continue + for priority, priority_conf in firewall[item][name_type].items(): + if priority not in firewall[item][name_type]: + continue + if 'rule' not in priority_conf: + continue + for rule_id, rule_conf in priority_conf['rule'].items(): + source_group = dict_search_args(rule_conf, 'source', 'group', group_type) + dest_group = dict_search_args(rule_conf, 'destination', 'group', group_type) + in_interface = dict_search_args(rule_conf, 'inbound_interface', 'interface_group') + out_interface = dict_search_args(rule_conf, 'outbound_interface', 'interface_group') + if source_group: + if source_group[0] == "!": + source_group = source_group[1:] + if group_name == source_group: + out.append(f'{item}-{name_type}-{priority}-{rule_id}') + if dest_group: + if dest_group[0] == "!": + dest_group = dest_group[1:] + if group_name == dest_group: + out.append(f'{item}-{name_type}-{priority}-{rule_id}') + if in_interface: + if in_interface[0] == "!": + in_interface = in_interface[1:] + if group_name == in_interface: + out.append(f'{item}-{name_type}-{priority}-{rule_id}') + if out_interface: + if out_interface[0] == "!": + out_interface = out_interface[1:] + if group_name == out_interface: + out.append(f'{item}-{name_type}-{priority}-{rule_id}') return out header = ['Name', 'Type', 'References', 'Members'] @@ -258,7 +338,7 @@ def show_firewall_group(name=None): continue references = find_references(group_type, group_name) - row = [group_name, group_type, '\n'.join(references) or 'N/A'] + row = [group_name, group_type, '\n'.join(references) or 'N/D'] if 'address' in group_conf: row.append("\n".join(sorted(group_conf['address']))) elif 'network' in group_conf: @@ -267,8 +347,10 @@ def show_firewall_group(name=None): row.append("\n".join(sorted(group_conf['mac_address']))) elif 'port' in group_conf: row.append("\n".join(sorted(group_conf['port']))) + elif 'interface' in group_conf: + row.append("\n".join(sorted(group_conf['interface']))) else: - row.append('N/A') + row.append('N/D') rows.append(row) if rows: @@ -284,28 +366,28 @@ def show_summary(): if not firewall: return - header = ['Ruleset Name', 'Description', 'References'] + header = ['Ruleset Hook', 'Ruleset Priority', 'Description', 'References'] v4_out = [] v6_out = [] - if 'name' in firewall: - for name, name_conf in firewall['name'].items(): - description = name_conf.get('description', '') - interfaces = ", ".join(name_conf['interface']) - v4_out.append([name, description, interfaces]) + if 'ipv4' in firewall: + for hook, hook_conf in firewall['ipv4'].items(): + for prior, prior_conf in firewall['ipv4'][hook].items(): + description = prior_conf.get('description', '') + v4_out.append([hook, prior, description]) - if 'ipv6_name' in firewall: - for name, name_conf in firewall['ipv6_name'].items(): - description = name_conf.get('description', '') - interfaces = ", ".join(name_conf['interface']) - v6_out.append([name, description, interfaces or 'N/A']) + if 'ipv6' in firewall: + for hook, hook_conf in firewall['ipv6'].items(): + for prior, prior_conf in firewall['ipv6'][hook].items(): + description = prior_conf.get('description', '') + v6_out.append([hook, prior, description]) if v6_out: - print('\nIPv6 name:\n') + print('\nIPv6 Ruleset:\n') print(tabulate.tabulate(v6_out, header) + '\n') if v4_out: - print('\nIPv4 name:\n') + print('\nIPv4 Ruleset:\n') print(tabulate.tabulate(v4_out, header) + '\n') show_firewall_group() @@ -319,18 +401,23 @@ def show_statistics(): if not firewall: return - if 'name' in firewall: - for name, name_conf in firewall['name'].items(): - output_firewall_name_statistics(name, name_conf, ipv6=False) + if 'ipv4' in firewall: + for hook, hook_conf in firewall['ipv4'].items(): + for prior, prior_conf in firewall['ipv4'][hook].items(): + output_firewall_name_statistics(hook,prior, prior_conf, ipv6=False) - if 'ipv6_name' in firewall: - for name, name_conf in firewall['ipv6_name'].items(): - output_firewall_name_statistics(name, name_conf, ipv6=True) + if 'ipv6' in firewall: + for hook, hook_conf in firewall['ipv6'].items(): + for prior, prior_conf in firewall['ipv6'][hook].items(): + output_firewall_name_statistics(hook,prior, prior_conf, ipv6=True) if __name__ == '__main__': parser = argparse.ArgumentParser() parser.add_argument('--action', help='Action', required=False) parser.add_argument('--name', help='Firewall name', required=False, action='store', nargs='?', default='') + parser.add_argument('--family', help='IP family', required=False, action='store', nargs='?', default='') + parser.add_argument('--hook', help='Firewall hook', required=False, action='store', nargs='?', default='') + parser.add_argument('--priority', help='Firewall priority', required=False, action='store', nargs='?', default='') parser.add_argument('--rule', help='Firewall Rule ID', required=False) parser.add_argument('--ipv6', help='IPv6 toggle', action='store_true') @@ -338,11 +425,13 @@ if __name__ == '__main__': if args.action == 'show': if not args.rule: - show_firewall_name(args.name, args.ipv6) + show_firewall_name(args.hook, args.priority, args.ipv6) else: - show_firewall_rule(args.name, args.rule, args.ipv6) + show_firewall_rule(args.hook, args.priority, args.rule, args.ipv6) elif args.action == 'show_all': show_firewall() + elif args.action == 'show_family': + show_firewall_family(args.family) elif args.action == 'show_group': show_firewall_group(args.name) elif args.action == 'show_statistics': |