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-rw-r--r--python/vyos/accel_ppp.py74
-rw-r--r--python/vyos/base.py44
-rw-r--r--python/vyos/component_version.py192
-rw-r--r--python/vyos/component_versions.py57
-rw-r--r--python/vyos/configdep.py65
-rw-r--r--python/vyos/configtree.py20
-rw-r--r--python/vyos/defaults.py2
-rw-r--r--python/vyos/firewall.py92
-rw-r--r--python/vyos/formatversions.py109
-rw-r--r--python/vyos/ifconfig/__init__.py1
-rw-r--r--python/vyos/ifconfig/macvlan.py9
-rw-r--r--python/vyos/ifconfig/veth.py54
-rw-r--r--python/vyos/migrator.py95
-rw-r--r--python/vyos/nat.py59
-rw-r--r--python/vyos/opmode.py61
-rw-r--r--python/vyos/systemversions.py46
-rw-r--r--python/vyos/template.py13
-rw-r--r--python/vyos/util.py46
18 files changed, 695 insertions, 344 deletions
diff --git a/python/vyos/accel_ppp.py b/python/vyos/accel_ppp.py
new file mode 100644
index 000000000..bfc8ee5a9
--- /dev/null
+++ b/python/vyos/accel_ppp.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import sys
+
+import vyos.opmode
+from vyos.util import rc_cmd
+
+
+def get_server_statistics(accel_statistics, pattern, sep=':') -> dict:
+ import re
+
+ stat_dict = {'sessions': {}}
+
+ cpu = re.search(r'cpu(.*)', accel_statistics).group(0)
+ # Find all lines with pattern, for example 'sstp:'
+ data = re.search(rf'{pattern}(.*)', accel_statistics, re.DOTALL).group(0)
+ session_starting = re.search(r'starting(.*)', data).group(0)
+ session_active = re.search(r'active(.*)', data).group(0)
+
+ for entry in {cpu, session_starting, session_active}:
+ if sep in entry:
+ key, value = entry.split(sep)
+ if key in ['starting', 'active', 'finishing']:
+ stat_dict['sessions'][key] = value.strip()
+ continue
+ stat_dict[key] = value.strip()
+ return stat_dict
+
+
+def accel_cmd(port: int, command: str) -> str:
+ _, output = rc_cmd(f'/usr/bin/accel-cmd -p{port} {command}')
+ return output
+
+
+def accel_out_parse(accel_output: list[str]) -> list[dict[str, str]]:
+ """ Parse accel-cmd show sessions output """
+ data_list: list[dict[str, str]] = list()
+ field_names: list[str] = list()
+
+ field_names_unstripped: list[str] = accel_output.pop(0).split('|')
+ for field_name in field_names_unstripped:
+ field_names.append(field_name.strip())
+
+ while accel_output:
+ if '|' not in accel_output[0]:
+ accel_output.pop(0)
+ continue
+
+ current_item: list[str] = accel_output.pop(0).split('|')
+ item_dict: dict[str, str] = {}
+
+ for field_index in range(len(current_item)):
+ field_name: str = field_names[field_index]
+ field_value: str = current_item[field_index].strip()
+ item_dict[field_name] = field_value
+
+ data_list.append(item_dict)
+
+ return data_list
diff --git a/python/vyos/base.py b/python/vyos/base.py
index 78067d5b2..9b93cb2f2 100644
--- a/python/vyos/base.py
+++ b/python/vyos/base.py
@@ -15,17 +15,47 @@
from textwrap import fill
+
+class BaseWarning:
+ def __init__(self, header, message, **kwargs):
+ self.message = message
+ self.kwargs = kwargs
+ if 'width' not in kwargs:
+ self.width = 72
+ if 'initial_indent' in kwargs:
+ del self.kwargs['initial_indent']
+ if 'subsequent_indent' in kwargs:
+ del self.kwargs['subsequent_indent']
+ self.textinitindent = header
+ self.standardindent = ''
+
+ def print(self):
+ messages = self.message.split('\n')
+ isfirstmessage = True
+ initial_indent = self.textinitindent
+ print('')
+ for mes in messages:
+ mes = fill(mes, initial_indent=initial_indent,
+ subsequent_indent=self.standardindent, **self.kwargs)
+ if isfirstmessage:
+ isfirstmessage = False
+ initial_indent = self.standardindent
+ print(f'{mes}')
+ print('')
+
+
class Warning():
- def __init__(self, message):
- # Reformat the message and trim it to 72 characters in length
- message = fill(message, width=72)
- print(f'\nWARNING: {message}')
+ def __init__(self, message, **kwargs):
+ self.BaseWarn = BaseWarning('WARNING: ', message, **kwargs)
+ self.BaseWarn.print()
+
class DeprecationWarning():
- def __init__(self, message):
+ def __init__(self, message, **kwargs):
# Reformat the message and trim it to 72 characters in length
- message = fill(message, width=72)
- print(f'\nDEPRECATION WARNING: {message}\n')
+ self.BaseWarn = BaseWarning('DEPRECATION WARNING: ', message, **kwargs)
+ self.BaseWarn.print()
+
class ConfigError(Exception):
def __init__(self, message):
diff --git a/python/vyos/component_version.py b/python/vyos/component_version.py
new file mode 100644
index 000000000..a4e318d08
--- /dev/null
+++ b/python/vyos/component_version.py
@@ -0,0 +1,192 @@
+# Copyright 2022 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library. If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Functions for reading/writing component versions.
+
+The config file version string has the following form:
+
+VyOS 1.3/1.4:
+
+// Warning: Do not remove the following line.
+// vyos-config-version: "broadcast-relay@1:cluster@1:config-management@1:conntrack@3:conntrack-sync@2:dhcp-relay@2:dhcp-server@6:dhcpv6-server@1:dns-forwarding@3:firewall@5:https@2:interfaces@22:ipoe-server@1:ipsec@5:isis@1:l2tp@3:lldp@1:mdns@1:nat@5:ntp@1:pppoe-server@5:pptp@2:qos@1:quagga@8:rpki@1:salt@1:snmp@2:ssh@2:sstp@3:system@21:vrrp@2:vyos-accel-ppp@2:wanloadbalance@3:webproxy@2:zone-policy@1"
+// Release version: 1.3.0
+
+VyOS 1.2:
+
+/* Warning: Do not remove the following line. */
+/* === vyatta-config-version: "broadcast-relay@1:cluster@1:config-management@1:conntrack-sync@1:conntrack@1:dhcp-relay@2:dhcp-server@5:dns-forwarding@1:firewall@5:ipsec@5:l2tp@1:mdns@1:nat@4:ntp@1:pppoe-server@2:pptp@1:qos@1:quagga@7:snmp@1:ssh@1:system@10:vrrp@2:wanloadbalance@3:webgui@1:webproxy@2:zone-policy@1" === */
+/* Release version: 1.2.8 */
+
+"""
+
+import os
+import re
+import sys
+import fileinput
+
+from vyos.xml import component_version
+from vyos.version import get_version
+from vyos.defaults import directories
+
+DEFAULT_CONFIG_PATH = os.path.join(directories['config'], 'config.boot')
+
+def from_string(string_line, vintage='vyos'):
+ """
+ Get component version dictionary from string.
+ Return empty dictionary if string contains no config information
+ or raise error if component version string malformed.
+ """
+ version_dict = {}
+
+ if vintage == 'vyos':
+ if re.match(r'// vyos-config-version:.+', string_line):
+ if not re.match(r'// vyos-config-version:\s+"([\w,-]+@\d+:)+([\w,-]+@\d+)"\s*', string_line):
+ raise ValueError(f"malformed configuration string: {string_line}")
+
+ for pair in re.findall(r'([\w,-]+)@(\d+)', string_line):
+ version_dict[pair[0]] = int(pair[1])
+
+ elif vintage == 'vyatta':
+ if re.match(r'/\* === vyatta-config-version:.+=== \*/$', string_line):
+ if not re.match(r'/\* === vyatta-config-version:\s+"([\w,-]+@\d+:)+([\w,-]+@\d+)"\s+=== \*/$', string_line):
+ raise ValueError(f"malformed configuration string: {string_line}")
+
+ for pair in re.findall(r'([\w,-]+)@(\d+)', string_line):
+ version_dict[pair[0]] = int(pair[1])
+ else:
+ raise ValueError("Unknown config string vintage")
+
+ return version_dict
+
+def from_file(config_file_name=DEFAULT_CONFIG_PATH, vintage='vyos'):
+ """
+ Get component version dictionary parsing config file line by line
+ """
+ with open(config_file_name, 'r') as f:
+ for line_in_config in f:
+ version_dict = from_string(line_in_config, vintage=vintage)
+ if version_dict:
+ return version_dict
+
+ # no version information
+ return {}
+
+def from_system():
+ """
+ Get system component version dict.
+ """
+ return component_version()
+
+def legacy_from_system():
+ """
+ Get system component version dict from legacy location.
+ This is for a transitional sanity check; the directory will eventually
+ be removed.
+ """
+ system_versions = {}
+ legacy_dir = directories['current']
+
+ # To be removed:
+ if not os.path.isdir(legacy_dir):
+ return system_versions
+
+ try:
+ version_info = os.listdir(legacy_dir)
+ except OSError as err:
+ sys.exit(repr(err))
+
+ for info in version_info:
+ if re.match(r'[\w,-]+@\d+', info):
+ pair = info.split('@')
+ system_versions[pair[0]] = int(pair[1])
+
+ return system_versions
+
+def format_string(ver: dict) -> str:
+ """
+ Version dict to string.
+ """
+ keys = list(ver)
+ keys.sort()
+ l = []
+ for k in keys:
+ v = ver[k]
+ l.append(f'{k}@{v}')
+ sep = ':'
+ return sep.join(l)
+
+def version_footer(ver: dict, vintage='vyos') -> str:
+ """
+ Version footer as string.
+ """
+ ver_str = format_string(ver)
+ release = get_version()
+ if vintage == 'vyos':
+ ret_str = (f'// Warning: Do not remove the following line.\n'
+ + f'// vyos-config-version: "{ver_str}"\n'
+ + f'// Release version: {release}\n')
+ elif vintage == 'vyatta':
+ ret_str = (f'/* Warning: Do not remove the following line. */\n'
+ + f'/* === vyatta-config-version: "{ver_str}" === */\n'
+ + f'/* Release version: {release} */\n')
+ else:
+ raise ValueError("Unknown config string vintage")
+
+ return ret_str
+
+def system_footer(vintage='vyos') -> str:
+ """
+ System version footer as string.
+ """
+ ver_d = from_system()
+ return version_footer(ver_d, vintage=vintage)
+
+def write_version_footer(ver: dict, file_name, vintage='vyos'):
+ """
+ Write version footer to file.
+ """
+ footer = version_footer(ver=ver, vintage=vintage)
+ if file_name:
+ with open(file_name, 'a') as f:
+ f.write(footer)
+ else:
+ sys.stdout.write(footer)
+
+def write_system_footer(file_name, vintage='vyos'):
+ """
+ Write system version footer to file.
+ """
+ ver_d = from_system()
+ return write_version_footer(ver_d, file_name=file_name, vintage=vintage)
+
+def remove_footer(file_name):
+ """
+ Remove old version footer.
+ """
+ for line in fileinput.input(file_name, inplace=True):
+ if re.match(r'/\* Warning:.+ \*/$', line):
+ continue
+ if re.match(r'/\* === vyatta-config-version:.+=== \*/$', line):
+ continue
+ if re.match(r'/\* Release version:.+ \*/$', line):
+ continue
+ if re.match('// vyos-config-version:.+', line):
+ continue
+ if re.match('// Warning:.+', line):
+ continue
+ if re.match('// Release version:.+', line):
+ continue
+ sys.stdout.write(line)
diff --git a/python/vyos/component_versions.py b/python/vyos/component_versions.py
deleted file mode 100644
index 90b458aae..000000000
--- a/python/vyos/component_versions.py
+++ /dev/null
@@ -1,57 +0,0 @@
-# Copyright 2017 VyOS maintainers and contributors <maintainers@vyos.io>
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2.1 of the License, or (at your option) any later version.
-#
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library. If not, see <http://www.gnu.org/licenses/>.
-
-"""
-The version data looks like:
-
-/* Warning: Do not remove the following line. */
-/* === vyatta-config-version:
-"cluster@1:config-management@1:conntrack-sync@1:conntrack@1:dhcp-relay@1:dhcp-server@4:firewall@5:ipsec@4:nat@4:qos@1:quagga@2:system@8:vrrp@1:wanloadbalance@3:webgui@1:webproxy@1:zone-policy@1"
-=== */
-/* Release version: 1.2.0-rolling+201806131737 */
-"""
-
-import re
-
-def get_component_version(string_line):
- """
- Get component version dictionary from string
- return empty dictionary if string contains no config information
- or raise error if component version string malformed
- """
- return_value = {}
- if re.match(r'/\* === vyatta-config-version:.+=== \*/$', string_line):
-
- if not re.match(r'/\* === vyatta-config-version:\s+"([\w,-]+@\d+:)+([\w,-]+@\d+)"\s+=== \*/$', string_line):
- raise ValueError("malformed configuration string: " + str(string_line))
-
- for pair in re.findall(r'([\w,-]+)@(\d+)', string_line):
- if pair[0] in return_value.keys():
- raise ValueError("duplicate unit name: \"" + str(pair[0]) + "\" in string: \"" + string_line + "\"")
- return_value[pair[0]] = int(pair[1])
-
- return return_value
-
-
-def get_component_versions_from_file(config_file_name='/opt/vyatta/etc/config/config.boot'):
- """
- Get component version dictionary parsing config file line by line
- """
- f = open(config_file_name, 'r')
- for line_in_config in f:
- component_version = get_component_version(line_in_config)
- if component_version:
- return component_version
- raise ValueError("no config string in file:", config_file_name)
diff --git a/python/vyos/configdep.py b/python/vyos/configdep.py
new file mode 100644
index 000000000..e6b82ca93
--- /dev/null
+++ b/python/vyos/configdep.py
@@ -0,0 +1,65 @@
+# Copyright 2022 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+from inspect import stack
+
+from vyos.util import load_as_module
+
+dependents = {}
+
+def canon_name(name: str) -> str:
+ return os.path.splitext(name)[0].replace('-', '_')
+
+def canon_name_of_path(path: str) -> str:
+ script = os.path.basename(path)
+ return canon_name(script)
+
+def caller_name() -> str:
+ return stack()[-1].filename
+
+def run_config_mode_script(script: str, config):
+ from vyos.defaults import directories
+
+ path = os.path.join(directories['conf_mode'], script)
+ name = canon_name(script)
+ mod = load_as_module(name, path)
+
+ config.set_level([])
+ try:
+ c = mod.get_config(config)
+ mod.verify(c)
+ mod.generate(c)
+ mod.apply(c)
+ except (VyOSError, ConfigError) as e:
+ raise ConfigError(repr(e))
+
+def def_closure(script: str, config):
+ def func_impl():
+ run_config_mode_script(script, config)
+ return func_impl
+
+def set_dependent(target: str, config):
+ k = canon_name_of_path(caller_name())
+ l = dependents.setdefault(k, [])
+ func = def_closure(target, config)
+ l.append(func)
+
+def call_dependents():
+ k = canon_name_of_path(caller_name())
+ l = dependents.get(k, [])
+ while l:
+ f = l.pop(0)
+ f()
diff --git a/python/vyos/configtree.py b/python/vyos/configtree.py
index e9cdb69e4..b88615513 100644
--- a/python/vyos/configtree.py
+++ b/python/vyos/configtree.py
@@ -1,5 +1,5 @@
# configtree -- a standalone VyOS config file manipulation library (Python bindings)
-# Copyright (C) 2018 VyOS maintainers and contributors
+# Copyright (C) 2018-2022 VyOS maintainers and contributors
#
# This library is free software; you can redistribute it and/or modify it under the terms of
# the GNU Lesser General Public License as published by the Free Software Foundation;
@@ -12,6 +12,7 @@
# You should have received a copy of the GNU Lesser General Public License along with this library;
# if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+import os
import re
import json
@@ -147,6 +148,8 @@ class ConfigTree(object):
self.__config = address
self.__version = ''
+ self.__migration = os.environ.get('VYOS_MIGRATION')
+
def __del__(self):
if self.__config is not None:
self.__destroy(self.__config)
@@ -191,18 +194,27 @@ class ConfigTree(object):
else:
self.__set_add_value(self.__config, path_str, str(value).encode())
+ if self.__migration:
+ print(f"- op: set path: {path} value: {value} replace: {replace}")
+
def delete(self, path):
check_path(path)
path_str = " ".join(map(str, path)).encode()
self.__delete(self.__config, path_str)
+ if self.__migration:
+ print(f"- op: delete path: {path}")
+
def delete_value(self, path, value):
check_path(path)
path_str = " ".join(map(str, path)).encode()
self.__delete_value(self.__config, path_str, value.encode())
+ if self.__migration:
+ print(f"- op: delete_value path: {path} value: {value}")
+
def rename(self, path, new_name):
check_path(path)
path_str = " ".join(map(str, path)).encode()
@@ -216,6 +228,9 @@ class ConfigTree(object):
if (res != 0):
raise ConfigTreeError("Path [{}] doesn't exist".format(path))
+ if self.__migration:
+ print(f"- op: rename old_path: {path} new_path: {new_path}")
+
def copy(self, old_path, new_path):
check_path(old_path)
check_path(new_path)
@@ -229,6 +244,9 @@ class ConfigTree(object):
if (res != 0):
raise ConfigTreeError("Path [{}] doesn't exist".format(old_path))
+ if self.__migration:
+ print(f"- op: copy old_path: {old_path} new_path: {new_path}")
+
def exists(self, path):
check_path(path)
path_str = " ".join(map(str, path)).encode()
diff --git a/python/vyos/defaults.py b/python/vyos/defaults.py
index 6894fc4da..7de458960 100644
--- a/python/vyos/defaults.py
+++ b/python/vyos/defaults.py
@@ -49,8 +49,6 @@ api_data = {
'port' : '8080',
'socket' : False,
'strict' : False,
- 'gql' : False,
- 'introspection' : False,
'debug' : False,
'api_keys' : [ {"id": "testapp", "key": "qwerty"} ]
}
diff --git a/python/vyos/firewall.py b/python/vyos/firewall.py
index 2ebb220fe..48263eef5 100644
--- a/python/vyos/firewall.py
+++ b/python/vyos/firewall.py
@@ -20,6 +20,9 @@ import os
import re
from pathlib import Path
+from socket import AF_INET
+from socket import AF_INET6
+from socket import getaddrinfo
from time import strftime
from vyos.remote import download
@@ -31,65 +34,31 @@ from vyos.util import dict_search_args
from vyos.util import dict_search_recursive
from vyos.util import run
+# Domain Resolver
-# Functions for firewall group domain-groups
-def get_ips_domains_dict(list_domains):
- """
- Get list of IPv4 addresses by list of domains
- Ex: get_ips_domains_dict(['ex1.com', 'ex2.com'])
- {'ex1.com': ['192.0.2.1'], 'ex2.com': ['192.0.2.2', '192.0.2.3']}
- """
- from socket import gethostbyname_ex
- from socket import gaierror
-
- ip_dict = {}
- for domain in list_domains:
- try:
- _, _, ips = gethostbyname_ex(domain)
- ip_dict[domain] = ips
- except gaierror:
- pass
-
- return ip_dict
-
-def nft_init_set(group_name, table="vyos_filter", family="ip"):
- """
- table ip vyos_filter {
- set GROUP_NAME
- type ipv4_addr
- flags interval
- }
- """
- return call(f'nft add set ip {table} {group_name} {{ type ipv4_addr\\; flags interval\\; }}')
-
-
-def nft_add_set_elements(group_name, elements, table="vyos_filter", family="ip"):
- """
- table ip vyos_filter {
- set GROUP_NAME {
- type ipv4_addr
- flags interval
- elements = { 192.0.2.1, 192.0.2.2 }
- }
- """
- elements = ", ".join(elements)
- return call(f'nft add element {family} {table} {group_name} {{ {elements} }} ')
-
-def nft_flush_set(group_name, table="vyos_filter", family="ip"):
- """
- Flush elements of nft set
- """
- return call(f'nft flush set {family} {table} {group_name}')
-
-def nft_update_set_elements(group_name, elements, table="vyos_filter", family="ip"):
- """
- Update elements of nft set
- """
- flush_set = nft_flush_set(group_name, table="vyos_filter", family="ip")
- nft_add_set = nft_add_set_elements(group_name, elements, table="vyos_filter", family="ip")
- return flush_set, nft_add_set
-
-# END firewall group domain-group (sets)
+def fqdn_config_parse(firewall):
+ firewall['ip_fqdn'] = {}
+ firewall['ip6_fqdn'] = {}
+
+ for domain, path in dict_search_recursive(firewall, 'fqdn'):
+ fw_name = path[1] # name/ipv6-name
+ rule = path[3] # rule id
+ suffix = path[4][0] # source/destination (1 char)
+ set_name = f'{fw_name}_{rule}_{suffix}'
+
+ if path[0] == 'name':
+ firewall['ip_fqdn'][set_name] = domain
+ elif path[0] == 'ipv6_name':
+ firewall['ip6_fqdn'][set_name] = domain
+
+def fqdn_resolve(fqdn, ipv6=False):
+ try:
+ res = getaddrinfo(fqdn, None, AF_INET6 if ipv6 else AF_INET)
+ return set(item[4][0] for item in res)
+ except:
+ return None
+
+# End Domain Resolver
def find_nftables_rule(table, chain, rule_matches=[]):
# Find rule in table/chain that matches all criteria and return the handle
@@ -158,6 +127,13 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name):
operator = f'& {address_mask} {operator} '
output.append(f'{ip_name} {prefix}addr {operator}{suffix}')
+ if 'fqdn' in side_conf:
+ fqdn = side_conf['fqdn']
+ operator = ''
+ if fqdn[0] == '!':
+ operator = '!='
+ output.append(f'{ip_name} {prefix}addr {operator} @FQDN_{fw_name}_{rule_id}_{prefix}')
+
if dict_search_args(side_conf, 'geoip', 'country_code'):
operator = ''
if dict_search_args(side_conf, 'geoip', 'inverse_match') != None:
diff --git a/python/vyos/formatversions.py b/python/vyos/formatversions.py
deleted file mode 100644
index 29117a5d3..000000000
--- a/python/vyos/formatversions.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2.1 of the License, or (at your option) any later version.
-#
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with this library. If not, see <http://www.gnu.org/licenses/>.
-
-import sys
-import os
-import re
-import fileinput
-
-def read_vyatta_versions(config_file):
- config_file_versions = {}
-
- with open(config_file, 'r') as config_file_handle:
- for config_line in config_file_handle:
- if re.match(r'/\* === vyatta-config-version:.+=== \*/$', config_line):
- if not re.match(r'/\* === vyatta-config-version:\s+"([\w,-]+@\d+:)+([\w,-]+@\d+)"\s+=== \*/$', config_line):
- raise ValueError("malformed configuration string: "
- "{}".format(config_line))
-
- for pair in re.findall(r'([\w,-]+)@(\d+)', config_line):
- config_file_versions[pair[0]] = int(pair[1])
-
-
- return config_file_versions
-
-def read_vyos_versions(config_file):
- config_file_versions = {}
-
- with open(config_file, 'r') as config_file_handle:
- for config_line in config_file_handle:
- if re.match(r'// vyos-config-version:.+', config_line):
- if not re.match(r'// vyos-config-version:\s+"([\w,-]+@\d+:)+([\w,-]+@\d+)"\s*', config_line):
- raise ValueError("malformed configuration string: "
- "{}".format(config_line))
-
- for pair in re.findall(r'([\w,-]+)@(\d+)', config_line):
- config_file_versions[pair[0]] = int(pair[1])
-
- return config_file_versions
-
-def remove_versions(config_file):
- """
- Remove old version string.
- """
- for line in fileinput.input(config_file, inplace=True):
- if re.match(r'/\* Warning:.+ \*/$', line):
- continue
- if re.match(r'/\* === vyatta-config-version:.+=== \*/$', line):
- continue
- if re.match(r'/\* Release version:.+ \*/$', line):
- continue
- if re.match('// vyos-config-version:.+', line):
- continue
- if re.match('// Warning:.+', line):
- continue
- if re.match('// Release version:.+', line):
- continue
- sys.stdout.write(line)
-
-def format_versions_string(config_versions):
- cfg_keys = list(config_versions.keys())
- cfg_keys.sort()
-
- component_version_strings = []
-
- for key in cfg_keys:
- cfg_vers = config_versions[key]
- component_version_strings.append('{}@{}'.format(key, cfg_vers))
-
- separator = ":"
- component_version_string = separator.join(component_version_strings)
-
- return component_version_string
-
-def write_vyatta_versions_foot(config_file, component_version_string,
- os_version_string):
- if config_file:
- with open(config_file, 'a') as config_file_handle:
- config_file_handle.write('/* Warning: Do not remove the following line. */\n')
- config_file_handle.write('/* === vyatta-config-version: "{}" === */\n'.format(component_version_string))
- config_file_handle.write('/* Release version: {} */\n'.format(os_version_string))
- else:
- sys.stdout.write('/* Warning: Do not remove the following line. */\n')
- sys.stdout.write('/* === vyatta-config-version: "{}" === */\n'.format(component_version_string))
- sys.stdout.write('/* Release version: {} */\n'.format(os_version_string))
-
-def write_vyos_versions_foot(config_file, component_version_string,
- os_version_string):
- if config_file:
- with open(config_file, 'a') as config_file_handle:
- config_file_handle.write('// Warning: Do not remove the following line.\n')
- config_file_handle.write('// vyos-config-version: "{}"\n'.format(component_version_string))
- config_file_handle.write('// Release version: {}\n'.format(os_version_string))
- else:
- sys.stdout.write('// Warning: Do not remove the following line.\n')
- sys.stdout.write('// vyos-config-version: "{}"\n'.format(component_version_string))
- sys.stdout.write('// Release version: {}\n'.format(os_version_string))
-
diff --git a/python/vyos/ifconfig/__init__.py b/python/vyos/ifconfig/__init__.py
index a37615c8f..d1ddaa13e 100644
--- a/python/vyos/ifconfig/__init__.py
+++ b/python/vyos/ifconfig/__init__.py
@@ -36,4 +36,5 @@ from vyos.ifconfig.tunnel import TunnelIf
from vyos.ifconfig.wireless import WiFiIf
from vyos.ifconfig.l2tpv3 import L2TPv3If
from vyos.ifconfig.macsec import MACsecIf
+from vyos.ifconfig.veth import VethIf
from vyos.ifconfig.wwan import WWANIf
diff --git a/python/vyos/ifconfig/macvlan.py b/python/vyos/ifconfig/macvlan.py
index 776014bc3..2266879ec 100644
--- a/python/vyos/ifconfig/macvlan.py
+++ b/python/vyos/ifconfig/macvlan.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2021 VyOS maintainers and contributors <maintainers@vyos.io>
+# Copyright 2019-2022 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
@@ -30,10 +30,17 @@ class MACVLANIf(Interface):
}
def _create(self):
+ """
+ Create MACvlan interface in OS kernel. Interface is administrative
+ down by default.
+ """
# please do not change the order when assembling the command
cmd = 'ip link add {ifname} link {source_interface} type {type} mode {mode}'
self._cmd(cmd.format(**self.config))
+ # interface is always A/D down. It needs to be enabled explicitly
+ self.set_admin_state('down')
+
def set_mode(self, mode):
ifname = self.config['ifname']
cmd = f'ip link set dev {ifname} type macvlan mode {mode}'
diff --git a/python/vyos/ifconfig/veth.py b/python/vyos/ifconfig/veth.py
new file mode 100644
index 000000000..aafbf226a
--- /dev/null
+++ b/python/vyos/ifconfig/veth.py
@@ -0,0 +1,54 @@
+# Copyright 2022 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library. If not, see <http://www.gnu.org/licenses/>.
+
+from vyos.ifconfig.interface import Interface
+
+
+@Interface.register
+class VethIf(Interface):
+ """
+ Abstraction of a Linux veth interface
+ """
+ iftype = 'veth'
+ definition = {
+ **Interface.definition,
+ **{
+ 'section': 'virtual-ethernet',
+ 'prefixes': ['veth', ],
+ 'bridgeable': True,
+ },
+ }
+
+ def _create(self):
+ """
+ Create veth interface in OS kernel. Interface is administrative
+ down by default.
+ """
+ # check before create, as we have 2 veth interfaces in our CLI
+ # interface virtual-ethernet veth0 peer-name 'veth1'
+ # interface virtual-ethernet veth1 peer-name 'veth0'
+ #
+ # but iproute2 creates the pair with one command:
+ # ip link add vet0 type veth peer name veth1
+ if self.exists(self.config['peer_name']):
+ return
+
+ # create virtual-ethernet interface
+ cmd = 'ip link add {ifname} type {type}'.format(**self.config)
+ cmd += f' peer name {self.config["peer_name"]}'
+ self._cmd(cmd)
+
+ # interface is always A/D down. It needs to be enabled explicitly
+ self.set_admin_state('down')
diff --git a/python/vyos/migrator.py b/python/vyos/migrator.py
index c6e3435ca..87c74e1ea 100644
--- a/python/vyos/migrator.py
+++ b/python/vyos/migrator.py
@@ -1,4 +1,4 @@
-# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+# Copyright 2019-2022 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
@@ -16,11 +16,13 @@
import sys
import os
import json
-import subprocess
-import vyos.version
+import logging
+
import vyos.defaults
-import vyos.systemversions as systemversions
-import vyos.formatversions as formatversions
+import vyos.component_version as component_version
+from vyos.util import cmd
+
+log_file = os.path.join(vyos.defaults.directories['config'], 'vyos-migrate.log')
class MigratorError(Exception):
pass
@@ -31,9 +33,21 @@ class Migrator(object):
self._force = force
self._set_vintage = set_vintage
self._config_file_vintage = None
- self._log_file = None
self._changed = False
+ def init_logger(self):
+ self.logger = logging.getLogger(__name__)
+ self.logger.setLevel(logging.DEBUG)
+
+ # on adding the file handler, allow write permission for cfg_group;
+ # restore original umask on exit
+ mask = os.umask(0o113)
+ fh = logging.FileHandler(log_file)
+ formatter = logging.Formatter('%(message)s')
+ fh.setFormatter(formatter)
+ self.logger.addHandler(fh)
+ os.umask(mask)
+
def read_config_file_versions(self):
"""
Get component versions from config file footer and set vintage;
@@ -42,13 +56,13 @@ class Migrator(object):
cfg_file = self._config_file
component_versions = {}
- cfg_versions = formatversions.read_vyatta_versions(cfg_file)
+ cfg_versions = component_version.from_file(cfg_file, vintage='vyatta')
if cfg_versions:
self._config_file_vintage = 'vyatta'
component_versions = cfg_versions
- cfg_versions = formatversions.read_vyos_versions(cfg_file)
+ cfg_versions = component_version.from_file(cfg_file, vintage='vyos')
if cfg_versions:
self._config_file_vintage = 'vyos'
@@ -70,34 +84,15 @@ class Migrator(object):
else:
return True
- def open_log_file(self):
- """
- Open log file for migration, catching any error.
- Note that, on boot, migration takes place before the canonical log
- directory is created, hence write to the config file directory.
- """
- self._log_file = os.path.join(vyos.defaults.directories['config'],
- 'vyos-migrate.log')
- # on creation, allow write permission for cfg_group;
- # restore original umask on exit
- mask = os.umask(0o113)
- try:
- log = open('{0}'.format(self._log_file), 'w')
- log.write("List of executed migration scripts:\n")
- except Exception as e:
- os.umask(mask)
- print("Logging error: {0}".format(e))
- return None
-
- os.umask(mask)
- return log
-
def run_migration_scripts(self, config_file_versions, system_versions):
"""
Run migration scripts iteratively, until config file version equals
system component version.
"""
- log = self.open_log_file()
+ os.environ['VYOS_MIGRATION'] = '1'
+ self.init_logger()
+
+ self.logger.info("List of executed migration scripts:")
cfg_versions = config_file_versions
sys_versions = system_versions
@@ -129,8 +124,9 @@ class Migrator(object):
'{}-to-{}'.format(cfg_ver, next_ver))
try:
- subprocess.check_call([migrate_script,
- self._config_file])
+ out = cmd([migrate_script, self._config_file])
+ self.logger.info(f'{migrate_script}')
+ if out: self.logger.info(out)
except FileNotFoundError:
pass
except Exception as err:
@@ -138,38 +134,25 @@ class Migrator(object):
"".format(migrate_script, err))
sys.exit(1)
- if log:
- try:
- log.write('{0}\n'.format(migrate_script))
- except Exception as e:
- print("Error writing log: {0}".format(e))
-
cfg_ver = next_ver
-
rev_versions[key] = cfg_ver
- if log:
- log.close()
-
+ del os.environ['VYOS_MIGRATION']
return rev_versions
def write_config_file_versions(self, cfg_versions):
"""
Write new versions string.
"""
- versions_string = formatversions.format_versions_string(cfg_versions)
-
- os_version_string = vyos.version.get_version()
-
if self._config_file_vintage == 'vyatta':
- formatversions.write_vyatta_versions_foot(self._config_file,
- versions_string,
- os_version_string)
+ component_version.write_version_footer(cfg_versions,
+ self._config_file,
+ vintage='vyatta')
if self._config_file_vintage == 'vyos':
- formatversions.write_vyos_versions_foot(self._config_file,
- versions_string,
- os_version_string)
+ component_version.write_version_footer(cfg_versions,
+ self._config_file,
+ vintage='vyos')
def save_json_record(self, component_versions: dict):
"""
@@ -200,7 +183,7 @@ class Migrator(object):
# This will force calling all migration scripts:
cfg_versions = {}
- sys_versions = systemversions.get_system_component_version()
+ sys_versions = component_version.from_system()
# save system component versions in json file for easy reference
self.save_json_record(sys_versions)
@@ -216,7 +199,7 @@ class Migrator(object):
if not self._changed:
return
- formatversions.remove_versions(cfg_file)
+ component_version.remove_footer(cfg_file)
self.write_config_file_versions(rev_versions)
@@ -237,7 +220,7 @@ class VirtualMigrator(Migrator):
if not self._changed:
return
- formatversions.remove_versions(cfg_file)
+ component_version.remove_footer(cfg_file)
self.write_config_file_versions(cfg_versions)
diff --git a/python/vyos/nat.py b/python/vyos/nat.py
index 31bbdc386..8a311045a 100644
--- a/python/vyos/nat.py
+++ b/python/vyos/nat.py
@@ -16,6 +16,8 @@
from vyos.template import is_ip_network
from vyos.util import dict_search_args
+from vyos.template import bracketize_ipv6
+
def parse_nat_rule(rule_conf, rule_id, nat_type, ipv6=False):
output = []
@@ -69,6 +71,7 @@ def parse_nat_rule(rule_conf, rule_id, nat_type, ipv6=False):
else:
translation_output.append('to')
if addr:
+ addr = bracketize_ipv6(addr)
translation_output.append(addr)
options = []
@@ -85,8 +88,13 @@ def parse_nat_rule(rule_conf, rule_id, nat_type, ipv6=False):
translation_str += f' {",".join(options)}'
for target in ['source', 'destination']:
+ if target not in rule_conf:
+ continue
+
+ side_conf = rule_conf[target]
prefix = target[:1]
- addr = dict_search_args(rule_conf, target, 'address')
+
+ addr = dict_search_args(side_conf, 'address')
if addr and not (ignore_type_addr and target == nat_type):
operator = ''
if addr[:1] == '!':
@@ -94,7 +102,7 @@ def parse_nat_rule(rule_conf, rule_id, nat_type, ipv6=False):
addr = addr[1:]
output.append(f'{ip_prefix} {prefix}addr {operator} {addr}')
- addr_prefix = dict_search_args(rule_conf, target, 'prefix')
+ addr_prefix = dict_search_args(side_conf, 'prefix')
if addr_prefix and ipv6:
operator = ''
if addr_prefix[:1] == '!':
@@ -102,7 +110,7 @@ def parse_nat_rule(rule_conf, rule_id, nat_type, ipv6=False):
addr_prefix = addr[1:]
output.append(f'ip6 {prefix}addr {operator} {addr_prefix}')
- port = dict_search_args(rule_conf, target, 'port')
+ port = dict_search_args(side_conf, 'port')
if port:
protocol = rule_conf['protocol']
if protocol == 'tcp_udp':
@@ -113,6 +121,51 @@ def parse_nat_rule(rule_conf, rule_id, nat_type, ipv6=False):
port = port[1:]
output.append(f'{protocol} {prefix}port {operator} {{ {port} }}')
+ if 'group' in side_conf:
+ group = side_conf['group']
+ if 'address_group' in group and not (ignore_type_addr and target == nat_type):
+ group_name = group['address_group']
+ operator = ''
+ if group_name[0] == '!':
+ operator = '!='
+ group_name = group_name[1:]
+ output.append(f'{ip_prefix} {prefix}addr {operator} @A_{group_name}')
+ # Generate firewall group domain-group
+ elif 'domain_group' in group and not (ignore_type_addr and target == nat_type):
+ group_name = group['domain_group']
+ operator = ''
+ if group_name[0] == '!':
+ operator = '!='
+ group_name = group_name[1:]
+ output.append(f'{ip_prefix} {prefix}addr {operator} @D_{group_name}')
+ elif 'network_group' in group and not (ignore_type_addr and target == nat_type):
+ group_name = group['network_group']
+ operator = ''
+ if group_name[0] == '!':
+ operator = '!='
+ group_name = group_name[1:]
+ output.append(f'{ip_prefix} {prefix}addr {operator} @N_{group_name}')
+ if 'mac_group' in group:
+ group_name = group['mac_group']
+ operator = ''
+ if group_name[0] == '!':
+ operator = '!='
+ group_name = group_name[1:]
+ output.append(f'ether {prefix}addr {operator} @M_{group_name}')
+ if 'port_group' in group:
+ proto = rule_conf['protocol']
+ group_name = group['port_group']
+
+ if proto == 'tcp_udp':
+ proto = 'th'
+
+ operator = ''
+ if group_name[0] == '!':
+ operator = '!='
+ group_name = group_name[1:]
+
+ output.append(f'{proto} {prefix}port {operator} @P_{group_name}')
+
output.append('counter')
if 'log' in rule_conf:
diff --git a/python/vyos/opmode.py b/python/vyos/opmode.py
index 7e3545c87..9dba8d30f 100644
--- a/python/vyos/opmode.py
+++ b/python/vyos/opmode.py
@@ -16,6 +16,7 @@
import re
import sys
import typing
+from humps import decamelize
class Error(Exception):
@@ -44,6 +45,19 @@ class PermissionDenied(Error):
"""
pass
+class IncorrectValue(Error):
+ """ Requested operation is valid, but an argument provided has an
+ incorrect value, preventing successful completion.
+ """
+ pass
+
+class InternalError(Error):
+ """ Any situation when VyOS detects that it could not perform
+ an operation correctly due to logic errors in its own code
+ or errors in underlying software.
+ """
+ pass
+
def _is_op_mode_function_name(name):
if re.match(r"^(show|clear|reset|restart)", name):
@@ -93,6 +107,51 @@ def _get_arg_type(t):
else:
return t
+def _normalize_field_name(name):
+ # Convert the name to string if it is not
+ # (in some cases they may be numbers)
+ name = str(name)
+
+ # Replace all separators with underscores
+ name = re.sub(r'(\s|[\(\)\[\]\{\}\-\.\,:\"\'\`])+', '_', name)
+
+ # Replace specific characters with textual descriptions
+ name = re.sub(r'@', '_at_', name)
+ name = re.sub(r'%', '_percentage_', name)
+ name = re.sub(r'~', '_tilde_', name)
+
+ # Force all letters to lowercase
+ name = name.lower()
+
+ # Remove leading and trailing underscores, if any
+ name = re.sub(r'(^(_+)(?=[^_])|_+$)', '', name)
+
+ # Ensure there are only single underscores
+ name = re.sub(r'_+', '_', name)
+
+ return name
+
+def _normalize_dict_field_names(old_dict):
+ new_dict = {}
+
+ for key in old_dict:
+ new_key = _normalize_field_name(key)
+ new_dict[new_key] = _normalize_field_names(old_dict[key])
+
+ # Sanity check
+ if len(old_dict) != len(new_dict):
+ raise InternalError("Dictionary fields do not allow unique normalization")
+ else:
+ return new_dict
+
+def _normalize_field_names(value):
+ if isinstance(value, dict):
+ return _normalize_dict_field_names(value)
+ elif isinstance(value, list):
+ return list(map(lambda v: _normalize_field_names(v), value))
+ else:
+ return value
+
def run(module):
from argparse import ArgumentParser
@@ -148,6 +207,8 @@ def run(module):
if not args["raw"]:
return res
else:
+ res = decamelize(res)
+ res = _normalize_field_names(res)
from json import dumps
return dumps(res, indent=4)
else:
diff --git a/python/vyos/systemversions.py b/python/vyos/systemversions.py
deleted file mode 100644
index f2da76d4f..000000000
--- a/python/vyos/systemversions.py
+++ /dev/null
@@ -1,46 +0,0 @@
-# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2.1 of the License, or (at your option) any later version.
-#
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with this library. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import re
-import sys
-import vyos.defaults
-from vyos.xml import component_version
-
-# legacy version, reading from the file names in
-# /opt/vyatta/etc/config-migrate/current
-def get_system_versions():
- """
- Get component versions from running system; critical failure if
- unable to read migration directory.
- """
- system_versions = {}
-
- try:
- version_info = os.listdir(vyos.defaults.directories['current'])
- except OSError as err:
- print("OS error: {}".format(err))
- sys.exit(1)
-
- for info in version_info:
- if re.match(r'[\w,-]+@\d+', info):
- pair = info.split('@')
- system_versions[pair[0]] = int(pair[1])
-
- return system_versions
-
-# read from xml cache
-def get_system_component_version():
- return component_version()
diff --git a/python/vyos/template.py b/python/vyos/template.py
index 0870a0523..2a4135f9e 100644
--- a/python/vyos/template.py
+++ b/python/vyos/template.py
@@ -566,12 +566,17 @@ def nft_default_rule(fw_conf, fw_name, ipv6=False):
return " ".join(output)
@register_filter('nft_state_policy')
-def nft_state_policy(conf, state, ipv6=False):
+def nft_state_policy(conf, state):
out = [f'ct state {state}']
- if 'log' in conf:
- log_level = conf['log']
- out.append(f'log level {log_level}')
+ if 'log' in conf and 'enable' in conf['log']:
+ log_state = state[:3].upper()
+ log_action = (conf['action'] if 'action' in conf else 'accept')[:1].upper()
+ out.append(f'log prefix "[STATE-POLICY-{log_state}-{log_action}]"')
+
+ if 'log_level' in conf:
+ log_level = conf['log_level']
+ out.append(f'level {log_level}')
out.append('counter')
diff --git a/python/vyos/util.py b/python/vyos/util.py
index 461df9a6e..9ebe69b6c 100644
--- a/python/vyos/util.py
+++ b/python/vyos/util.py
@@ -574,6 +574,37 @@ def bytes_to_human(bytes, initial_exponent=0):
size_string = "{0:.2f} {1}".format(value, suffix)
return size_string
+def human_to_bytes(value):
+ """ Converts a data amount with a unit suffix to bytes, like 2K to 2048 """
+
+ from re import match as re_match
+
+ res = re_match(r'^\s*(\d+(?:\.\d+)?)\s*([a-zA-Z]+)\s*$', value)
+
+ if not res:
+ raise ValueError(f"'{value}' is not a valid data amount")
+ else:
+ amount = float(res.group(1))
+ unit = res.group(2).lower()
+
+ if unit == 'b':
+ res = amount
+ elif (unit == 'k') or (unit == 'kb'):
+ res = amount * 1024
+ elif (unit == 'm') or (unit == 'mb'):
+ res = amount * 1024**2
+ elif (unit == 'g') or (unit == 'gb'):
+ res = amount * 1024**3
+ elif (unit == 't') or (unit == 'tb'):
+ res = amount * 1024**4
+ else:
+ raise ValueError(f"Unsupported data unit '{unit}'")
+
+ # There cannot be fractional bytes, so we convert them to integer.
+ # However, truncating causes problems with conversion back to human unit,
+ # so we round instead -- that seems to work well enough.
+ return round(res)
+
def get_cfg_group_id():
from grp import getgrnam
from vyos.defaults import cfg_group
@@ -1105,3 +1136,18 @@ def sysctl_write(name, value):
call(f'sysctl -wq {name}={value}')
return True
return False
+
+# approach follows a discussion in:
+# https://stackoverflow.com/questions/1175208/elegant-python-function-to-convert-camelcase-to-snake-case
+def camel_to_snake_case(name: str) -> str:
+ pattern = r'\d+|[A-Z]?[a-z]+|\W|[A-Z]{2,}(?=[A-Z][a-z]|\d|\W|$)'
+ words = re.findall(pattern, name)
+ return '_'.join(map(str.lower, words))
+
+def load_as_module(name: str, path: str):
+ import importlib.util
+
+ spec = importlib.util.spec_from_file_location(name, path)
+ mod = importlib.util.module_from_spec(spec)
+ spec.loader.exec_module(mod)
+ return mod
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-24 16:33:52 +0000