diff options
Diffstat (limited to 'python')
-rw-r--r-- | python/vyos/base.py | 6 | ||||
-rw-r--r-- | python/vyos/configdict.py | 87 | ||||
-rw-r--r-- | python/vyos/configdiff.py | 84 | ||||
-rw-r--r-- | python/vyos/configtree.py | 96 | ||||
-rw-r--r-- | python/vyos/configverify.py | 56 | ||||
-rw-r--r-- | python/vyos/defaults.py | 1 | ||||
-rw-r--r-- | python/vyos/ethtool.py | 9 | ||||
-rw-r--r-- | python/vyos/firewall.py | 85 | ||||
-rw-r--r-- | python/vyos/frr.py | 22 | ||||
-rw-r--r-- | python/vyos/ifconfig/bridge.py | 12 | ||||
-rwxr-xr-x | python/vyos/ifconfig/interface.py | 148 | ||||
-rw-r--r-- | python/vyos/ifconfig/loopback.py | 12 | ||||
-rw-r--r-- | python/vyos/ifconfig/vxlan.py | 19 | ||||
-rw-r--r-- | python/vyos/ifconfig/wireless.py | 6 | ||||
-rw-r--r-- | python/vyos/migrator.py | 2 | ||||
-rw-r--r-- | python/vyos/pki.py | 26 | ||||
-rw-r--r-- | python/vyos/remote.py | 10 | ||||
-rw-r--r-- | python/vyos/systemversions.py | 7 | ||||
-rw-r--r-- | python/vyos/template.py | 101 | ||||
-rw-r--r-- | python/vyos/util.py | 40 | ||||
-rw-r--r-- | python/vyos/validate.py | 32 | ||||
-rw-r--r-- | python/vyos/xml/__init__.py | 4 | ||||
-rw-r--r-- | python/vyos/xml/definition.py | 9 |
23 files changed, 681 insertions, 193 deletions
diff --git a/python/vyos/base.py b/python/vyos/base.py index c78045548..fd22eaccd 100644 --- a/python/vyos/base.py +++ b/python/vyos/base.py @@ -15,6 +15,12 @@ from textwrap import fill +class DeprecationWarning(): + def __init__(self, message): + # Reformat the message and trim it to 72 characters in length + message = fill(message, width=72) + print(f'\nDEPRECATION WARNING: {message}\n') + class ConfigError(Exception): def __init__(self, message): # Reformat the message and trim it to 72 characters in length diff --git a/python/vyos/configdict.py b/python/vyos/configdict.py index d974a7565..551c27b67 100644 --- a/python/vyos/configdict.py +++ b/python/vyos/configdict.py @@ -117,6 +117,12 @@ def leaf_node_changed(conf, path): D.set_level(conf.get_level()) (new, old) = D.get_value_diff(path) if new != old: + if isinstance(old, dict): + # valueLess nodes return {} if node is deleted + return True + if old is None and isinstance(new, dict): + # valueLess nodes return {} if node was added + return True if old is None: return [] if isinstance(old, str): @@ -130,7 +136,7 @@ def leaf_node_changed(conf, path): return None -def node_changed(conf, path, key_mangling=None): +def node_changed(conf, path, key_mangling=None, recursive=False): """ Check if a leaf node was altered. If it has been altered - values has been changed, or it was added/removed, we will return the old value. If nothing @@ -140,7 +146,7 @@ def node_changed(conf, path, key_mangling=None): D = get_config_diff(conf, key_mangling) D.set_level(conf.get_level()) # get_child_nodes() will return dict_keys(), mangle this into a list with PEP448 - keys = D.get_child_nodes_diff(path, expand_nodes=Diff.DELETE)['delete'].keys() + keys = D.get_child_nodes_diff(path, expand_nodes=Diff.DELETE, recursive=recursive)['delete'].keys() return list(keys) def get_removed_vlans(conf, dict): @@ -196,7 +202,7 @@ def is_member(conf, interface, intftype=None): interface name -> Interface is a member of this interface False -> interface type cannot have members """ - ret_val = None + ret_val = {} intftypes = ['bonding', 'bridge'] if intftype not in intftypes + [None]: @@ -216,8 +222,8 @@ def is_member(conf, interface, intftype=None): member = base + [intf, 'member', 'interface', interface] if conf.exists(member): tmp = conf.get_config_dict(member, key_mangling=('-', '_'), - get_first_key=True) - ret_val = {intf : tmp} + get_first_key=True, no_tag_node_value_mangle=True) + ret_val.update({intf : tmp}) old_level = conf.set_level(old_level) return ret_val @@ -319,34 +325,42 @@ def is_source_interface(conf, interface, intftype=None): def get_dhcp_interfaces(conf, vrf=None): """ Common helper functions to retrieve all interfaces from current CLI sessions that have DHCP configured. """ - dhcp_interfaces = [] + dhcp_interfaces = {} dict = conf.get_config_dict(['interfaces'], get_first_key=True) if not dict: return dhcp_interfaces def check_dhcp(config, ifname): - out = [] + tmp = {} if 'address' in config and 'dhcp' in config['address']: + options = {} + if 'dhcp_options' in config and 'default_route_distance' in config['dhcp_options']: + options.update({'distance' : config['dhcp_options']['default_route_distance']}) if 'vrf' in config: - if vrf is config['vrf']: out.append(ifname) - else: out.append(ifname) - return out + if vrf is config['vrf']: tmp.update({ifname : options}) + else: tmp.update({ifname : options}) + return tmp for section, interface in dict.items(): - for ifname, ifconfig in interface.items(): + for ifname in interface: + # we already have a dict representation of the config from get_config_dict(), + # but with the extended information from get_interface_dict() we also + # get the DHCP client default-route-distance default option if not specified. + ifconfig = get_interface_dict(conf, ['interfaces', section], ifname) + tmp = check_dhcp(ifconfig, ifname) - dhcp_interfaces.extend(tmp) + dhcp_interfaces.update(tmp) # check per VLAN interfaces for vif, vif_config in ifconfig.get('vif', {}).items(): tmp = check_dhcp(vif_config, f'{ifname}.{vif}') - dhcp_interfaces.extend(tmp) + dhcp_interfaces.update(tmp) # check QinQ VLAN interfaces for vif_s, vif_s_config in ifconfig.get('vif-s', {}).items(): tmp = check_dhcp(vif_s_config, f'{ifname}.{vif_s}') - dhcp_interfaces.extend(tmp) + dhcp_interfaces.update(tmp) for vif_c, vif_c_config in vif_s_config.get('vif-c', {}).items(): tmp = check_dhcp(vif_c_config, f'{ifname}.{vif_s}.{vif_c}') - dhcp_interfaces.extend(tmp) + dhcp_interfaces.update(tmp) return dhcp_interfaces @@ -405,6 +419,12 @@ def get_interface_dict(config, base, ifname=''): if 'deleted' not in dict: dict = dict_merge(default_values, dict) + # If interface does not request an IPv4 DHCP address there is no need + # to keep the dhcp-options key + if 'address' not in dict or 'dhcp' not in dict['address']: + if 'dhcp_options' in dict: + del dict['dhcp_options'] + # XXX: T2665: blend in proper DHCPv6-PD default values dict = T2665_set_dhcpv6pd_defaults(dict) @@ -423,6 +443,10 @@ def get_interface_dict(config, base, ifname=''): bond = is_member(config, ifname, 'bonding') if bond: dict.update({'is_bond_member' : bond}) + # Check if any DHCP options changed which require a client restat + dhcp = node_changed(config, ['dhcp-options'], recursive=True) + if dhcp: dict.update({'dhcp_options_changed' : ''}) + # Some interfaces come with a source_interface which must also not be part # of any other bond or bridge interface as it is exclusivly assigned as the # Kernels "lower" interface to this new "virtual/upper" interface. @@ -466,10 +490,20 @@ def get_interface_dict(config, base, ifname=''): # XXX: T2665: blend in proper DHCPv6-PD default values dict['vif'][vif] = T2665_set_dhcpv6pd_defaults(dict['vif'][vif]) + # If interface does not request an IPv4 DHCP address there is no need + # to keep the dhcp-options key + if 'address' not in dict['vif'][vif] or 'dhcp' not in dict['vif'][vif]['address']: + if 'dhcp_options' in dict['vif'][vif]: + del dict['vif'][vif]['dhcp_options'] + # Check if we are a member of a bridge device bridge = is_member(config, f'{ifname}.{vif}', 'bridge') if bridge: dict['vif'][vif].update({'is_bridge_member' : bridge}) + # Check if any DHCP options changed which require a client restat + dhcp = node_changed(config, ['vif', vif, 'dhcp-options'], recursive=True) + if dhcp: dict['vif'][vif].update({'dhcp_options_changed' : ''}) + for vif_s, vif_s_config in dict.get('vif_s', {}).items(): default_vif_s_values = defaults(base + ['vif-s']) # XXX: T2665: we only wan't the vif-s defaults - do not care about vif-c @@ -491,10 +525,21 @@ def get_interface_dict(config, base, ifname=''): # XXX: T2665: blend in proper DHCPv6-PD default values dict['vif_s'][vif_s] = T2665_set_dhcpv6pd_defaults(dict['vif_s'][vif_s]) + # If interface does not request an IPv4 DHCP address there is no need + # to keep the dhcp-options key + if 'address' not in dict['vif_s'][vif_s] or 'dhcp' not in \ + dict['vif_s'][vif_s]['address']: + if 'dhcp_options' in dict['vif_s'][vif_s]: + del dict['vif_s'][vif_s]['dhcp_options'] + # Check if we are a member of a bridge device bridge = is_member(config, f'{ifname}.{vif_s}', 'bridge') if bridge: dict['vif_s'][vif_s].update({'is_bridge_member' : bridge}) + # Check if any DHCP options changed which require a client restat + dhcp = node_changed(config, ['vif-s', vif_s, 'dhcp-options'], recursive=True) + if dhcp: dict['vif_s'][vif_s].update({'dhcp_options_changed' : ''}) + for vif_c, vif_c_config in vif_s_config.get('vif_c', {}).items(): default_vif_c_values = defaults(base + ['vif-s', 'vif-c']) @@ -516,11 +561,22 @@ def get_interface_dict(config, base, ifname=''): dict['vif_s'][vif_s]['vif_c'][vif_c] = T2665_set_dhcpv6pd_defaults( dict['vif_s'][vif_s]['vif_c'][vif_c]) + # If interface does not request an IPv4 DHCP address there is no need + # to keep the dhcp-options key + if 'address' not in dict['vif_s'][vif_s]['vif_c'][vif_c] or 'dhcp' \ + not in dict['vif_s'][vif_s]['vif_c'][vif_c]['address']: + if 'dhcp_options' in dict['vif_s'][vif_s]['vif_c'][vif_c]: + del dict['vif_s'][vif_s]['vif_c'][vif_c]['dhcp_options'] + # Check if we are a member of a bridge device bridge = is_member(config, f'{ifname}.{vif_s}.{vif_c}', 'bridge') if bridge: dict['vif_s'][vif_s]['vif_c'][vif_c].update( {'is_bridge_member' : bridge}) + # Check if any DHCP options changed which require a client restat + dhcp = node_changed(config, ['vif-s', vif_s, 'vif-c', vif_c, 'dhcp-options'], recursive=True) + if dhcp: dict['vif_s'][vif_s]['vif_c'][vif_c].update({'dhcp_options_changed' : ''}) + # Check vif, vif-s/vif-c VLAN interfaces for removal dict = get_removed_vlans(config, dict) return dict @@ -545,7 +601,6 @@ def get_vlan_ids(interface): return vlan_ids - def get_accel_dict(config, base, chap_secrets): """ Common utility function to retrieve and mangle the Accel-PPP configuration diff --git a/python/vyos/configdiff.py b/python/vyos/configdiff.py index 4ad7443d7..9185575df 100644 --- a/python/vyos/configdiff.py +++ b/python/vyos/configdiff.py @@ -16,6 +16,7 @@ from enum import IntFlag, auto from vyos.config import Config +from vyos.configtree import DiffTree from vyos.configdict import dict_merge from vyos.configdict import list_diff from vyos.util import get_sub_dict, mangle_dict_keys @@ -38,6 +39,8 @@ class Diff(IntFlag): ADD = auto() STABLE = auto() +ALL = Diff.MERGE | Diff.DELETE | Diff.ADD | Diff.STABLE + requires_effective = [enum_to_key(Diff.DELETE)] target_defaults = [enum_to_key(Diff.MERGE)] @@ -75,19 +78,24 @@ def get_config_diff(config, key_mangling=None): isinstance(key_mangling[1], str)): raise ValueError("key_mangling must be a tuple of two strings") - return ConfigDiff(config, key_mangling) + diff_t = DiffTree(config._running_config, config._session_config) + + return ConfigDiff(config, key_mangling, diff_tree=diff_t) class ConfigDiff(object): """ The class of config changes as represented by comparison between the session config dict and the effective config dict. """ - def __init__(self, config, key_mangling=None): + def __init__(self, config, key_mangling=None, diff_tree=None): self._level = config.get_level() self._session_config_dict = config.get_cached_root_dict(effective=False) self._effective_config_dict = config.get_cached_root_dict(effective=True) self._key_mangling = key_mangling + self._diff_tree = diff_tree + self._diff_dict = diff_tree.dict if diff_tree else {} + # mirrored from Config; allow path arguments relative to level def _make_path(self, path): if isinstance(path, str): @@ -136,6 +144,15 @@ class ConfigDiff(object): self._key_mangling[1]) return config_dict + def is_node_changed(self, path=[]): + if self._diff_tree is None: + raise NotImplementedError("diff_tree class not available") + + if (self._diff_tree.add.exists(self._make_path(path)) or + self._diff_tree.sub.exists(self._make_path(path))): + return True + return False + def get_child_nodes_diff_str(self, path=[]): ret = {'add': {}, 'change': {}, 'delete': {}} @@ -164,7 +181,8 @@ class ConfigDiff(object): return ret - def get_child_nodes_diff(self, path=[], expand_nodes=Diff(0), no_defaults=False): + def get_child_nodes_diff(self, path=[], expand_nodes=Diff(0), no_defaults=False, + recursive=False): """ Args: path (str|list): config path @@ -174,6 +192,8 @@ class ConfigDiff(object): value no_detaults=False: if expand_nodes & Diff.MERGE, do not merge default values to ret['merge'] + recursive: if true, use config_tree diff algorithm provided by + diff_tree class Returns: dict of lists, representing differences between session and effective config, under path @@ -184,6 +204,34 @@ class ConfigDiff(object): """ session_dict = get_sub_dict(self._session_config_dict, self._make_path(path), get_first_key=True) + + if recursive: + if self._diff_tree is None: + raise NotImplementedError("diff_tree class not available") + else: + add = get_sub_dict(self._diff_tree.dict, ['add'], get_first_key=True) + sub = get_sub_dict(self._diff_tree.dict, ['sub'], get_first_key=True) + inter = get_sub_dict(self._diff_tree.dict, ['inter'], get_first_key=True) + ret = {} + ret[enum_to_key(Diff.MERGE)] = session_dict + ret[enum_to_key(Diff.DELETE)] = get_sub_dict(sub, self._make_path(path), + get_first_key=True) + ret[enum_to_key(Diff.ADD)] = get_sub_dict(add, self._make_path(path), + get_first_key=True) + ret[enum_to_key(Diff.STABLE)] = get_sub_dict(inter, self._make_path(path), + get_first_key=True) + for e in Diff: + k = enum_to_key(e) + if not (e & expand_nodes): + ret[k] = list(ret[k]) + else: + if self._key_mangling: + ret[k] = self._mangle_dict_keys(ret[k]) + if k in target_defaults and not no_defaults: + default_values = defaults(self._make_path(path)) + ret[k] = dict_merge(default_values, ret[k]) + return ret + effective_dict = get_sub_dict(self._effective_config_dict, self._make_path(path), get_first_key=True) @@ -209,7 +257,8 @@ class ConfigDiff(object): return ret - def get_node_diff(self, path=[], expand_nodes=Diff(0), no_defaults=False): + def get_node_diff(self, path=[], expand_nodes=Diff(0), no_defaults=False, + recursive=False): """ Args: path (str|list): config path @@ -219,6 +268,8 @@ class ConfigDiff(object): value no_detaults=False: if expand_nodes & Diff.MERGE, do not merge default values to ret['merge'] + recursive: if true, use config_tree diff algorithm provided by + diff_tree class Returns: dict of lists, representing differences between session and effective config, at path @@ -228,6 +279,31 @@ class ConfigDiff(object): dict['stable'] = config values in both session and effective """ session_dict = get_sub_dict(self._session_config_dict, self._make_path(path)) + + if recursive: + if self._diff_tree is None: + raise NotImplementedError("diff_tree class not available") + else: + add = get_sub_dict(self._diff_tree.dict, ['add'], get_first_key=True) + sub = get_sub_dict(self._diff_tree.dict, ['sub'], get_first_key=True) + inter = get_sub_dict(self._diff_tree.dict, ['inter'], get_first_key=True) + ret = {} + ret[enum_to_key(Diff.MERGE)] = session_dict + ret[enum_to_key(Diff.DELETE)] = get_sub_dict(sub, self._make_path(path)) + ret[enum_to_key(Diff.ADD)] = get_sub_dict(add, self._make_path(path)) + ret[enum_to_key(Diff.STABLE)] = get_sub_dict(inter, self._make_path(path)) + for e in Diff: + k = enum_to_key(e) + if not (e & expand_nodes): + ret[k] = list(ret[k]) + else: + if self._key_mangling: + ret[k] = self._mangle_dict_keys(ret[k]) + if k in target_defaults and not no_defaults: + default_values = defaults(self._make_path(path)) + ret[k] = dict_merge(default_values, ret[k]) + return ret + effective_dict = get_sub_dict(self._effective_config_dict, self._make_path(path)) ret = _key_sets_from_dicts(session_dict, effective_dict) diff --git a/python/vyos/configtree.py b/python/vyos/configtree.py index d8ffaca99..e9cdb69e4 100644 --- a/python/vyos/configtree.py +++ b/python/vyos/configtree.py @@ -17,6 +17,7 @@ import json from ctypes import cdll, c_char_p, c_void_p, c_int +LIBPATH = '/usr/lib/libvyosconfig.so.0' def escape_backslash(string: str) -> str: """Escape single backslashes in string that are not in escape sequence""" @@ -42,7 +43,9 @@ class ConfigTreeError(Exception): class ConfigTree(object): - def __init__(self, config_string, libpath='/usr/lib/libvyosconfig.so.0'): + def __init__(self, config_string=None, address=None, libpath=LIBPATH): + if config_string is None and address is None: + raise TypeError("ConfigTree() requires one of 'config_string' or 'address'") self.__config = None self.__lib = cdll.LoadLibrary(libpath) @@ -60,7 +63,7 @@ class ConfigTree(object): self.__to_string.restype = c_char_p self.__to_commands = self.__lib.to_commands - self.__to_commands.argtypes = [c_void_p] + self.__to_commands.argtypes = [c_void_p, c_char_p] self.__to_commands.restype = c_char_p self.__to_json = self.__lib.to_json @@ -123,18 +126,26 @@ class ConfigTree(object): self.__set_tag.argtypes = [c_void_p, c_char_p] self.__set_tag.restype = c_int + self.__get_subtree = self.__lib.get_subtree + self.__get_subtree.argtypes = [c_void_p, c_char_p] + self.__get_subtree.restype = c_void_p + self.__destroy = self.__lib.destroy self.__destroy.argtypes = [c_void_p] - config_section, version_section = extract_version(config_string) - config_section = escape_backslash(config_section) - config = self.__from_string(config_section.encode()) - if config is None: - msg = self.__get_error().decode() - raise ValueError("Failed to parse config: {0}".format(msg)) + if address is None: + config_section, version_section = extract_version(config_string) + config_section = escape_backslash(config_section) + config = self.__from_string(config_section.encode()) + if config is None: + msg = self.__get_error().decode() + raise ValueError("Failed to parse config: {0}".format(msg)) + else: + self.__config = config + self.__version = version_section else: - self.__config = config - self.__version = version_section + self.__config = address + self.__version = '' def __del__(self): if self.__config is not None: @@ -143,13 +154,16 @@ class ConfigTree(object): def __str__(self): return self.to_string() + def _get_config(self): + return self.__config + def to_string(self): config_string = self.__to_string(self.__config).decode() config_string = "{0}\n{1}".format(config_string, self.__version) return config_string - def to_commands(self): - return self.__to_commands(self.__config).decode() + def to_commands(self, op="set"): + return self.__to_commands(self.__config, op.encode()).decode() def to_json(self): return self.__to_json(self.__config).decode() @@ -281,3 +295,61 @@ class ConfigTree(object): else: raise ConfigTreeError("Path [{}] doesn't exist".format(path_str)) + def get_subtree(self, path, with_node=False): + check_path(path) + path_str = " ".join(map(str, path)).encode() + + res = self.__get_subtree(self.__config, path_str, with_node) + subt = ConfigTree(address=res) + return subt + +class DiffTree: + def __init__(self, left, right, path=[], libpath=LIBPATH): + if left is None: + left = ConfigTree(config_string='\n') + if right is None: + right = ConfigTree(config_string='\n') + if not (isinstance(left, ConfigTree) and isinstance(right, ConfigTree)): + raise TypeError("Arguments must be instances of ConfigTree") + if path: + if not left.exists(path): + raise ConfigTreeError(f"Path {path} doesn't exist in lhs tree") + if not right.exists(path): + raise ConfigTreeError(f"Path {path} doesn't exist in rhs tree") + + self.left = left + self.right = right + + self.__lib = cdll.LoadLibrary(libpath) + + self.__diff_tree = self.__lib.diff_tree + self.__diff_tree.argtypes = [c_char_p, c_void_p, c_void_p] + self.__diff_tree.restype = c_void_p + + self.__trim_tree = self.__lib.trim_tree + self.__trim_tree.argtypes = [c_void_p, c_void_p] + self.__trim_tree.restype = c_void_p + + check_path(path) + path_str = " ".join(map(str, path)).encode() + + res = self.__diff_tree(path_str, left._get_config(), right._get_config()) + + # full diff config_tree and python dict representation + self.full = ConfigTree(address=res) + self.dict = json.loads(self.full.to_json()) + + # config_tree sub-trees + self.add = self.full.get_subtree(['add']) + self.sub = self.full.get_subtree(['sub']) + self.inter = self.full.get_subtree(['inter']) + + # trim sub(-tract) tree to get delete tree for commands + ref = self.right.get_subtree(path, with_node=True) if path else self.right + res = self.__trim_tree(self.sub._get_config(), ref._get_config()) + self.delete = ConfigTree(address=res) + + def to_commands(self): + add = self.add.to_commands() + delete = self.delete.to_commands(op="delete") + return delete + "\n" + add diff --git a/python/vyos/configverify.py b/python/vyos/configverify.py index 365a28feb..1062d51ee 100644 --- a/python/vyos/configverify.py +++ b/python/vyos/configverify.py @@ -173,24 +173,43 @@ def verify_eapol(config): if ca_cert_name not in config['pki']['ca']: raise ConfigError('Invalid CA certificate specified for EAPoL') - ca_cert = config['pki']['ca'][cert_name] + ca_cert = config['pki']['ca'][ca_cert_name] if 'certificate' not in ca_cert: raise ConfigError('Invalid CA certificate specified for EAPoL') -def verify_mirror(config): +def verify_mirror_redirect(config): """ Common helper function used by interface implementations to perform - recurring validation of mirror interface configuration. + recurring validation of mirror and redirect interface configuration via tc(8) It makes no sense to mirror traffic back at yourself! """ + import os + if {'mirror', 'redirect'} <= set(config): + raise ConfigError('Mirror and redirect can not be enabled at the same time!') + if 'mirror' in config: for direction, mirror_interface in config['mirror'].items(): + if not os.path.exists(f'/sys/class/net/{mirror_interface}'): + raise ConfigError(f'Requested mirror interface "{mirror_interface}" '\ + 'does not exist!') + if mirror_interface == config['ifname']: - raise ConfigError(f'Can not mirror "{direction}" traffic back ' \ + raise ConfigError(f'Can not mirror "{direction}" traffic back '\ 'the originating interface!') + if 'redirect' in config: + redirect_ifname = config['redirect'] + if not os.path.exists(f'/sys/class/net/{redirect_ifname}'): + raise ConfigError(f'Requested redirect interface "{redirect_ifname}" '\ + 'does not exist!') + + if dict_search('traffic_policy.in', config) != None: + # XXX: support combination of limiting and redirect/mirror - this is an + # artificial limitation + raise ConfigError('Can not use ingress policy tigether with mirror or redirect!') + def verify_authentication(config): """ Common helper function used by interface implementations to perform @@ -224,9 +243,10 @@ def verify_bridge_delete(config): when interface also is part of a bridge. """ if 'is_bridge_member' in config: - raise ConfigError( - 'Interface "{ifname}" cannot be deleted as it is a ' - 'member of bridge "{is_bridge_member}"!'.format(**config)) + interface = config['ifname'] + for bridge in config['is_bridge_member']: + raise ConfigError(f'Interface "{interface}" cannot be deleted as it ' + f'is a member of bridge "{bridge}"!') def verify_interface_exists(ifname): """ @@ -308,27 +328,37 @@ def verify_vlan_config(config): if duplicate: raise ConfigError(f'Duplicate VLAN id "{duplicate[0]}" used for vif and vif-s interfaces!') + parent_ifname = config['ifname'] # 802.1q VLANs - for vlan in config.get('vif', {}): - vlan = config['vif'][vlan] + for vlan_id in config.get('vif', {}): + vlan = config['vif'][vlan_id] + vlan['ifname'] = f'{parent_ifname}.{vlan_id}' + verify_dhcpv6(vlan) verify_address(vlan) verify_vrf(vlan) + verify_mirror_redirect(vlan) verify_mtu_parent(vlan, config) # 802.1ad (Q-in-Q) VLANs - for s_vlan in config.get('vif_s', {}): - s_vlan = config['vif_s'][s_vlan] + for s_vlan_id in config.get('vif_s', {}): + s_vlan = config['vif_s'][s_vlan_id] + s_vlan['ifname'] = f'{parent_ifname}.{s_vlan_id}' + verify_dhcpv6(s_vlan) verify_address(s_vlan) verify_vrf(s_vlan) + verify_mirror_redirect(s_vlan) verify_mtu_parent(s_vlan, config) - for c_vlan in s_vlan.get('vif_c', {}): - c_vlan = s_vlan['vif_c'][c_vlan] + for c_vlan_id in s_vlan.get('vif_c', {}): + c_vlan = s_vlan['vif_c'][c_vlan_id] + c_vlan['ifname'] = f'{parent_ifname}.{s_vlan_id}.{c_vlan_id}' + verify_dhcpv6(c_vlan) verify_address(c_vlan) verify_vrf(c_vlan) + verify_mirror_redirect(c_vlan) verify_mtu_parent(c_vlan, config) verify_mtu_parent(c_vlan, s_vlan) diff --git a/python/vyos/defaults.py b/python/vyos/defaults.py index c77b695bd..fcb6a7fbc 100644 --- a/python/vyos/defaults.py +++ b/python/vyos/defaults.py @@ -48,6 +48,7 @@ api_data = { 'port' : '8080', 'socket' : False, 'strict' : False, + 'gql' : False, 'debug' : False, 'api_keys' : [ {"id": "testapp", "key": "qwerty"} ] } diff --git a/python/vyos/ethtool.py b/python/vyos/ethtool.py index e45b0f041..672ee2cc9 100644 --- a/python/vyos/ethtool.py +++ b/python/vyos/ethtool.py @@ -18,6 +18,9 @@ import re from vyos.util import popen +# These drivers do not support using ethtool to change the speed, duplex, or flow control settings +_drivers_without_speed_duplex_flow = ['vmxnet3', 'virtio_net', 'xen_netfront', 'iavf', 'ice', 'i40e'] + class Ethtool: """ Class is used to retrive and cache information about an ethernet adapter @@ -41,7 +44,7 @@ class Ethtool: # '100' : {'full': '', 'half': ''}, # '1000': {'full': ''} # } - _speed_duplex = { } + _speed_duplex = {'auto': {'auto': ''}} _ring_buffers = { } _ring_buffers_max = { } _driver_name = None @@ -188,7 +191,7 @@ class Ethtool: if duplex not in ['auto', 'full', 'half']: raise ValueError(f'Value "{duplex}" for duplex is invalid!') - if self.get_driver_name() in ['vmxnet3', 'virtio_net', 'xen_netfront']: + if self.get_driver_name() in _drivers_without_speed_duplex_flow: return False if speed in self._speed_duplex: @@ -198,7 +201,7 @@ class Ethtool: def check_flow_control(self): """ Check if the NIC supports flow-control """ - if self.get_driver_name() in ['vmxnet3', 'virtio_net', 'xen_netfront']: + if self.get_driver_name() in _drivers_without_speed_duplex_flow: return False return self._flow_control diff --git a/python/vyos/firewall.py b/python/vyos/firewall.py index 8b7402b7e..ff8623592 100644 --- a/python/vyos/firewall.py +++ b/python/vyos/firewall.py @@ -45,13 +45,19 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): if 'state' in rule_conf and rule_conf['state']: states = ",".join([s for s, v in rule_conf['state'].items() if v == 'enable']) - output.append(f'ct state {{{states}}}') + + if states: + output.append(f'ct state {{{states}}}') if 'protocol' in rule_conf and rule_conf['protocol'] != 'all': proto = rule_conf['protocol'] + operator = '' + if proto[0] == '!': + operator = '!=' + proto = proto[1:] if proto == 'tcp_udp': proto = '{tcp, udp}' - output.append('meta l4proto ' + proto) + output.append(f'meta l4proto {operator} {proto}') for side in ['destination', 'source']: if side in rule_conf: @@ -59,7 +65,10 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): side_conf = rule_conf[side] if 'address' in side_conf: - output.append(f'{ip_name} {prefix}addr {side_conf["address"]}') + suffix = side_conf['address'] + if suffix[0] == '!': + suffix = f'!= {suffix[1:]}' + output.append(f'{ip_name} {prefix}addr {suffix}') if 'mac_address' in side_conf: suffix = side_conf["mac_address"] @@ -69,24 +78,51 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): if 'port' in side_conf: proto = rule_conf['protocol'] - port = side_conf["port"] + port = side_conf['port'].split(',') + + ports = [] + negated_ports = [] - if isinstance(port, list): - port = ",".join(port) + for p in port: + if p[0] == '!': + negated_ports.append(p[1:]) + else: + ports.append(p) if proto == 'tcp_udp': proto = 'th' - output.append(f'{proto} {prefix}port {{{port}}}') + if ports: + ports_str = ','.join(ports) + output.append(f'{proto} {prefix}port {{{ports_str}}}') + + if negated_ports: + negated_ports_str = ','.join(negated_ports) + output.append(f'{proto} {prefix}port != {{{negated_ports_str}}}') if 'group' in side_conf: group = side_conf['group'] if 'address_group' in group: group_name = group['address_group'] - output.append(f'{ip_name} {prefix}addr $A{def_suffix}_{group_name}') + operator = '' + if group_name[0] == '!': + operator = '!=' + group_name = group_name[1:] + output.append(f'{ip_name} {prefix}addr {operator} $A{def_suffix}_{group_name}') elif 'network_group' in group: group_name = group['network_group'] - output.append(f'{ip_name} {prefix}addr $N{def_suffix}_{group_name}') + operator = '' + if group_name[0] == '!': + operator = '!=' + group_name = group_name[1:] + output.append(f'{ip_name} {prefix}addr {operator} $N{def_suffix}_{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'] @@ -94,10 +130,16 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): if proto == 'tcp_udp': proto = 'th' - output.append(f'{proto} {prefix}port $P_{group_name}') + operator = '' + if group_name[0] == '!': + operator = '!=' + group_name = group_name[1:] + + output.append(f'{proto} {prefix}port {operator} $P_{group_name}') if 'log' in rule_conf and rule_conf['log'] == 'enable': - output.append('log') + action = rule_conf['action'] if 'action' in rule_conf else 'accept' + output.append(f'log prefix "[{fw_name[:19]}-{rule_id}-{action[:1].upper()}] "') if 'hop_limit' in rule_conf: operators = {'eq': '==', 'gt': '>', 'lt': '<'} @@ -132,16 +174,14 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): if 'limit' in rule_conf: if 'rate' in rule_conf['limit']: - output.append(f'limit rate {rule_conf["limit"]["rate"]}/second') + output.append(f'limit rate {rule_conf["limit"]["rate"]}') if 'burst' in rule_conf['limit']: output.append(f'burst {rule_conf["limit"]["burst"]} packets') if 'recent' in rule_conf: count = rule_conf['recent']['count'] time = rule_conf['recent']['time'] - # output.append(f'meter {fw_name}_{rule_id} {{ ip saddr and 255.255.255.255 limit rate over {count}/{time} burst {count} packets }}') - # Waiting on input from nftables developers due to - # bug with above line and atomic chain flushing. + output.append(f'add @RECENT{def_suffix}_{fw_name}_{rule_id} {{ {ip_name} saddr limit rate over {count}/{time} burst {count} packets }}') if 'time' in rule_conf: output.append(parse_time(rule_conf['time'])) @@ -150,7 +190,6 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): if tcp_flags: output.append(parse_tcp_flags(tcp_flags)) - output.append('counter') if 'set' in rule_conf: @@ -165,15 +204,9 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): return " ".join(output) def parse_tcp_flags(flags): - all_flags = [] - include = [] - for flag in flags.split(","): - if flag[0] == '!': - flag = flag[1:] - else: - include.append(flag) - all_flags.append(flag) - return f'tcp flags & ({"|".join(all_flags)}) == {"|".join(include)}' + include = [flag for flag in flags if flag != 'not'] + exclude = list(flags['not']) if 'not' in flags else [] + return f'tcp flags & ({"|".join(include + exclude)}) == {"|".join(include) if include else "0x0"}' def parse_time(time): out = [] @@ -209,7 +242,7 @@ def parse_policy_set(set_conf, def_suffix): table = set_conf['table'] if table == 'main': table = '254' - mark = 0x7FFFFFFF - int(set_conf['table']) + mark = 0x7FFFFFFF - int(table) out.append(f'meta mark set {mark}') if 'tcp_mss' in set_conf: mss = set_conf['tcp_mss'] diff --git a/python/vyos/frr.py b/python/vyos/frr.py index a8f115d9a..cbba19ab7 100644 --- a/python/vyos/frr.py +++ b/python/vyos/frr.py @@ -73,15 +73,15 @@ from vyos.util import cmd import logging from logging.handlers import SysLogHandler import os +import sys + LOG = logging.getLogger(__name__) +DEBUG = False -DEBUG = os.path.exists('/tmp/vyos.frr.debug') -if DEBUG: - LOG.setLevel(logging.DEBUG) - ch = SysLogHandler(address='/dev/log') - ch2 = logging.StreamHandler() - LOG.addHandler(ch) - LOG.addHandler(ch2) +ch = SysLogHandler(address='/dev/log') +ch2 = logging.StreamHandler(stream=sys.stdout) +LOG.addHandler(ch) +LOG.addHandler(ch2) _frr_daemons = ['zebra', 'bgpd', 'fabricd', 'isisd', 'ospf6d', 'ospfd', 'pbrd', 'pimd', 'ripd', 'ripngd', 'sharpd', 'staticd', 'vrrpd', 'ldpd', @@ -121,6 +121,12 @@ class ConfigSectionNotFound(FrrError): """ pass +def init_debugging(): + global DEBUG + + DEBUG = os.path.exists('/tmp/vyos.frr.debug') + if DEBUG: + LOG.setLevel(logging.DEBUG) def get_configuration(daemon=None, marked=False): """ Get current running FRR configuration @@ -424,6 +430,8 @@ class FRRConfig: Using this overwrites the current loaded config objects and replaces the original loaded config ''' + init_debugging() + self.imported_config = get_configuration(daemon=daemon) if daemon: LOG.debug(f'load_configuration: Configuration loaded from FRR daemon {daemon}') diff --git a/python/vyos/ifconfig/bridge.py b/python/vyos/ifconfig/bridge.py index 27073b266..ffd9c590f 100644 --- a/python/vyos/ifconfig/bridge.py +++ b/python/vyos/ifconfig/bridge.py @@ -298,7 +298,6 @@ class BridgeIf(Interface): tmp = dict_search('member.interface', config) if tmp: - for interface, interface_config in tmp.items(): # if interface does yet not exist bail out early and # add it later @@ -316,10 +315,13 @@ class BridgeIf(Interface): # enslave interface port to bridge self.add_port(interface) - # always set private-vlan/port isolation - tmp = dict_search('isolated', interface_config) - value = 'on' if (tmp != None) else 'off' - lower.set_port_isolation(value) + if not interface.startswith('wlan'): + # always set private-vlan/port isolation - this can not be + # done when lower link is a wifi link, as it will trigger: + # RTNETLINK answers: Operation not supported + tmp = dict_search('isolated', interface_config) + value = 'on' if (tmp != None) else 'off' + lower.set_port_isolation(value) # set bridge port path cost if 'cost' in interface_config: diff --git a/python/vyos/ifconfig/interface.py b/python/vyos/ifconfig/interface.py index 91c7f0c33..6b0f08fd4 100755 --- a/python/vyos/ifconfig/interface.py +++ b/python/vyos/ifconfig/interface.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 @@ -13,7 +13,6 @@ # 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 netifaces import interfaces import os import re import json @@ -1080,16 +1079,17 @@ class Interface(Control): if addr in self._addr: return False - addr_is_v4 = is_ipv4(addr) - # add to interface if addr == 'dhcp': self.set_dhcp(True) elif addr == 'dhcpv6': self.set_dhcpv6(True) elif not is_intf_addr_assigned(self.ifname, addr): - self._cmd(f'ip addr add "{addr}" ' - f'{"brd + " if addr_is_v4 else ""}dev "{self.ifname}"') + tmp = f'ip addr add {addr} dev {self.ifname}' + # Add broadcast address for IPv4 + if is_ipv4(addr): tmp += ' brd +' + + self._cmd(tmp) else: return False @@ -1228,12 +1228,11 @@ class Interface(Control): options_file = f'{config_base}_{ifname}.options' pid_file = f'{config_base}_{ifname}.pid' lease_file = f'{config_base}_{ifname}.leases' - - # Stop client with old config files to get the right IF_METRIC. systemd_service = f'dhclient@{ifname}.service' - if is_systemd_service_active(systemd_service): - self._cmd(f'systemctl stop {systemd_service}') + # 'up' check is mandatory b/c even if the interface is A/D, as soon as + # the DHCP client is started the interface will be placed in u/u state. + # This is not what we intended to do when disabling an interface. if enable and 'disable' not in self._config: if dict_search('dhcp_options.host_name', self._config) == None: # read configured system hostname. @@ -1244,16 +1243,19 @@ class Interface(Control): tmp = {'dhcp_options' : { 'host_name' : hostname}} self._config = dict_merge(tmp, self._config) - render(options_file, 'dhcp-client/daemon-options.tmpl', - self._config) - render(config_file, 'dhcp-client/ipv4.tmpl', - self._config) + render(options_file, 'dhcp-client/daemon-options.tmpl', self._config) + render(config_file, 'dhcp-client/ipv4.tmpl', self._config) - # 'up' check is mandatory b/c even if the interface is A/D, as soon as - # the DHCP client is started the interface will be placed in u/u state. - # This is not what we intended to do when disabling an interface. - return self._cmd(f'systemctl restart {systemd_service}') + # When the DHCP client is restarted a brief outage will occur, as + # the old lease is released a new one is acquired (T4203). We will + # only restart DHCP client if it's option changed, or if it's not + # running, but it should be running (e.g. on system startup) + if 'dhcp_options_changed' in self._config or not is_systemd_service_active(systemd_service): + return self._cmd(f'systemctl restart {systemd_service}') + return None else: + if is_systemd_service_active(systemd_service): + self._cmd(f'systemctl stop {systemd_service}') # cleanup old config files for file in [config_file, options_file, pid_file, lease_file]: if os.path.isfile(file): @@ -1284,48 +1286,57 @@ class Interface(Control): if os.path.isfile(config_file): os.remove(config_file) - def set_mirror(self): + def set_mirror_redirect(self): # Please refer to the document for details # - https://man7.org/linux/man-pages/man8/tc.8.html # - https://man7.org/linux/man-pages/man8/tc-mirred.8.html # Depening if we are the source or the target interface of the port # mirror we need to setup some variables. source_if = self._config['ifname'] - config = self._config.get('mirror', None) + mirror_config = None + if 'mirror' in self._config: + mirror_config = self._config['mirror'] if 'is_mirror_intf' in self._config: source_if = next(iter(self._config['is_mirror_intf'])) - config = self._config['is_mirror_intf'][source_if].get('mirror', None) - - # Check configuration stored by old perl code before delete T3782/T4056 - if not 'redirect' in self._config and not 'traffic_policy' in self._config: - # Please do not clear the 'set $? = 0 '. It's meant to force a return of 0 - # Remove existing mirroring rules - delete_tc_cmd = f'tc qdisc del dev {source_if} handle ffff: ingress 2> /dev/null;' - delete_tc_cmd += f'tc qdisc del dev {source_if} handle 1: root prio 2> /dev/null;' - delete_tc_cmd += 'set $?=0' - self._popen(delete_tc_cmd) - - # Bail out early if nothing needs to be configured - if not config: - return - - for direction, mirror_if in config.items(): - if mirror_if not in interfaces(): - continue - - if direction == 'ingress': - handle = 'ffff: ingress' - parent = 'ffff:' - elif direction == 'egress': - handle = '1: root prio' - parent = '1:' - - # Mirror egress traffic - mirror_cmd = f'tc qdisc add dev {source_if} handle {handle}; ' - # Export the mirrored traffic to the interface - mirror_cmd += f'tc filter add dev {source_if} parent {parent} protocol all prio 10 u32 match u32 0 0 flowid 1:1 action mirred egress mirror dev {mirror_if}' - self._popen(mirror_cmd) + mirror_config = self._config['is_mirror_intf'][source_if].get('mirror', None) + + redirect_config = None + + # clear existing ingess - ignore errors (e.g. "Error: Cannot find specified + # qdisc on specified device") - we simply cleanup all stuff here + self._popen(f'tc qdisc del dev {source_if} parent ffff: 2>/dev/null'); + self._popen(f'tc qdisc del dev {source_if} parent 1: 2>/dev/null'); + + # Apply interface mirror policy + if mirror_config: + for direction, target_if in mirror_config.items(): + if direction == 'ingress': + handle = 'ffff: ingress' + parent = 'ffff:' + elif direction == 'egress': + handle = '1: root prio' + parent = '1:' + + # Mirror egress traffic + mirror_cmd = f'tc qdisc add dev {source_if} handle {handle}; ' + # Export the mirrored traffic to the interface + mirror_cmd += f'tc filter add dev {source_if} parent {parent} protocol '\ + f'all prio 10 u32 match u32 0 0 flowid 1:1 action mirred '\ + f'egress mirror dev {target_if}' + _, err = self._popen(mirror_cmd) + if err: print('tc qdisc(filter for mirror port failed') + + # Apply interface traffic redirection policy + elif 'redirect' in self._config: + _, err = self._popen(f'tc qdisc add dev {source_if} handle ffff: ingress') + if err: print(f'tc qdisc add for redirect failed!') + + target_if = self._config['redirect'] + _, err = self._popen(f'tc filter add dev {source_if} parent ffff: protocol '\ + f'all prio 10 u32 match u32 0 0 flowid 1:1 action mirred '\ + f'egress redirect dev {target_if}') + if err: print('tc filter add for redirect failed') def set_xdp(self, state): """ @@ -1424,9 +1435,6 @@ class Interface(Control): else: self.del_addr(addr) - for addr in new_addr: - self.add_addr(addr) - # start DHCPv6 client when only PD was configured if dhcpv6pd: self.set_dhcpv6(True) @@ -1441,16 +1449,15 @@ class Interface(Control): # checked before self.set_vrf(config.get('vrf', '')) + # Add this section after vrf T4331 + for addr in new_addr: + self.add_addr(addr) + # Configure MSS value for IPv4 TCP connections tmp = dict_search('ip.adjust_mss', config) value = tmp if (tmp != None) else '0' self.set_tcp_ipv4_mss(value) - # Configure MSS value for IPv6 TCP connections - tmp = dict_search('ipv6.adjust_mss', config) - value = tmp if (tmp != None) else '0' - self.set_tcp_ipv6_mss(value) - # Configure ARP cache timeout in milliseconds - has default value tmp = dict_search('ip.arp_cache_timeout', config) value = tmp if (tmp != None) else '30' @@ -1496,6 +1503,18 @@ class Interface(Control): value = tmp if (tmp != None) else '0' self.set_ipv4_source_validation(value) + # MTU - Maximum Transfer Unit has a default value. It must ALWAYS be set + # before mangling any IPv6 option. If MTU is less then 1280 IPv6 will be + # automatically disabled by the kernel. Also MTU must be increased before + # configuring any IPv6 address on the interface. + if 'mtu' in config: + self.set_mtu(config.get('mtu')) + + # Configure MSS value for IPv6 TCP connections + tmp = dict_search('ipv6.adjust_mss', config) + value = tmp if (tmp != None) else '0' + self.set_tcp_ipv6_mss(value) + # IPv6 forwarding tmp = dict_search('ipv6.disable_forwarding', config) value = '0' if (tmp != None) else '1' @@ -1518,10 +1537,6 @@ class Interface(Control): value = tmp if (tmp != None) else '1' self.set_ipv6_dad_messages(value) - # MTU - Maximum Transfer Unit - if 'mtu' in config: - self.set_mtu(config.get('mtu')) - # Delete old IPv6 EUI64 addresses before changing MAC for addr in (dict_search('ipv6.address.eui64_old', config) or []): self.del_ipv6_eui64_address(addr) @@ -1546,8 +1561,8 @@ class Interface(Control): # eXpress Data Path - highly experimental self.set_xdp('xdp' in config) - # configure port mirror - self.set_mirror() + # configure interface mirror or redirection target + self.set_mirror_redirect() # Enable/Disable of an interface must always be done at the end of the # derived class to make use of the ref-counting set_admin_state() @@ -1706,6 +1721,3 @@ class VLANIf(Interface): return None return super().set_admin_state(state) - - def set_mirror(self): - return diff --git a/python/vyos/ifconfig/loopback.py b/python/vyos/ifconfig/loopback.py index 192c12f5c..b3babfadc 100644 --- a/python/vyos/ifconfig/loopback.py +++ b/python/vyos/ifconfig/loopback.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 @@ -23,7 +23,6 @@ class LoopbackIf(Interface): """ _persistent_addresses = ['127.0.0.1/8', '::1/128'] iftype = 'loopback' - definition = { **Interface.definition, **{ @@ -32,6 +31,7 @@ class LoopbackIf(Interface): 'bridgeable': True, } } + def remove(self): """ Loopback interface can not be deleted from operating system. We can @@ -57,12 +57,14 @@ class LoopbackIf(Interface): interface setup code and provide a single point of entry when workin on any interface. """ - addr = config.get('address', []) + address = config.get('address', []) # We must ensure that the loopback addresses are never deleted from the system - addr += self._persistent_addresses + for tmp in self._persistent_addresses: + if tmp not in address: + address.append(tmp) # Update IP address entry in our dictionary - config.update({'address' : addr}) + config.update({'address' : address}) # call base class super().update(config) diff --git a/python/vyos/ifconfig/vxlan.py b/python/vyos/ifconfig/vxlan.py index 0c5282db4..516a19f24 100644 --- a/python/vyos/ifconfig/vxlan.py +++ b/python/vyos/ifconfig/vxlan.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 @@ -68,6 +68,16 @@ class VXLANIf(Interface): 'vni' : 'id', } + # IPv6 flowlabels can only be used on IPv6 tunnels, thus we need to + # ensure that at least the first remote IP address is passed to the + # tunnel creation command. Subsequent tunnel remote addresses can later + # be added to the FDB + remote_list = None + if 'remote' in self.config: + # skip first element as this is already configured as remote + remote_list = self.config['remote'][1:] + self.config['remote'] = self.config['remote'][0] + cmd = 'ip link add {ifname} type {type} dstport {port}' for vyos_key, iproute2_key in mapping.items(): # dict_search will return an empty dict "{}" for valueless nodes like @@ -82,3 +92,10 @@ class VXLANIf(Interface): self._cmd(cmd.format(**self.config)) # interface is always A/D down. It needs to be enabled explicitly self.set_admin_state('down') + + # VXLAN tunnel is always recreated on any change - see interfaces-vxlan.py + if remote_list: + for remote in remote_list: + cmd = f'bridge fdb append to 00:00:00:00:00:00 dst {remote} ' \ + 'port {port} dev {ifname}' + self._cmd(cmd.format(**self.config)) diff --git a/python/vyos/ifconfig/wireless.py b/python/vyos/ifconfig/wireless.py index 748b6e02d..88eaa772b 100644 --- a/python/vyos/ifconfig/wireless.py +++ b/python/vyos/ifconfig/wireless.py @@ -49,10 +49,10 @@ class WiFiIf(Interface): on any interface. """ # We can not call add_to_bridge() until wpa_supplicant is running, thus - # we will remove the key from the config dict and react to this specal - # case in thie derived class. + # we will remove the key from the config dict and react to this special + # case in this derived class. # re-add ourselves to any bridge we might have fallen out of - bridge_member = '' + bridge_member = None if 'is_bridge_member' in config: bridge_member = config['is_bridge_member'] del config['is_bridge_member'] diff --git a/python/vyos/migrator.py b/python/vyos/migrator.py index 4574bb6d1..a2e0daabd 100644 --- a/python/vyos/migrator.py +++ b/python/vyos/migrator.py @@ -195,7 +195,7 @@ class Migrator(object): # This will force calling all migration scripts: cfg_versions = {} - sys_versions = systemversions.get_system_versions() + sys_versions = systemversions.get_system_component_version() # save system component versions in json file for easy reference self.save_json_record(sys_versions) diff --git a/python/vyos/pki.py b/python/vyos/pki.py index 68ad73bf2..0b916eaae 100644 --- a/python/vyos/pki.py +++ b/python/vyos/pki.py @@ -331,3 +331,29 @@ def verify_certificate(cert, ca_cert): return True except InvalidSignature: return False + +# Certificate chain + +def find_parent(cert, ca_certs): + for ca_cert in ca_certs: + if verify_certificate(cert, ca_cert): + return ca_cert + return None + +def find_chain(cert, ca_certs): + remaining = ca_certs.copy() + chain = [cert] + + while remaining: + parent = find_parent(chain[-1], remaining) + if parent is None: + # No parent in the list of remaining certificates or there's a circular dependency + break + elif parent == chain[-1]: + # Self-signed: must be root CA (end of chain) + break + else: + remaining.remove(parent) + chain.append(parent) + + return chain diff --git a/python/vyos/remote.py b/python/vyos/remote.py index aa62ac60d..66044fa52 100644 --- a/python/vyos/remote.py +++ b/python/vyos/remote.py @@ -83,8 +83,7 @@ def check_storage(path, size): directory = path if os.path.isdir(path) else (os.path.dirname(os.path.expanduser(path)) or os.getcwd()) # `size` can be None or 0 to indicate unknown size. if not size: - print_error('Warning: Cannot determine size of remote file.') - print_error('Bravely continuing regardless.') + print_error('Warning: Cannot determine size of remote file. Bravely continuing regardless.') return if size < 1024 * 1024: @@ -227,7 +226,7 @@ class HttpC: r.raise_for_status() # If the request got redirected, keep the last URL we ended up with. final_urlstring = r.url - if r.history: + if r.history and self.progressbar: print_error('Redirecting to ' + final_urlstring) # Check for the prospective file size. try: @@ -317,11 +316,12 @@ def friendly_download(local_path, urlstring, source_host='', source_port=0): sys.exit(1) except: import traceback + print_error(f'Failed to download {urlstring}.') # There are a myriad different reasons a download could fail. # SSH errors, FTP errors, I/O errors, HTTP errors (403, 404...) # We omit the scary stack trace but print the error nevertheless. - print_error(f'Failed to download {urlstring}.') - traceback.print_exception(*sys.exc_info()[:2], None) + exc_type, exc_value, exc_traceback = sys.exc_info() + traceback.print_exception(exc_type, exc_value, None, 0, None, False) sys.exit(1) else: print_error('Download complete.') diff --git a/python/vyos/systemversions.py b/python/vyos/systemversions.py index 9b3f4f413..f2da76d4f 100644 --- a/python/vyos/systemversions.py +++ b/python/vyos/systemversions.py @@ -17,7 +17,10 @@ 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 @@ -37,3 +40,7 @@ def get_system_versions(): 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 6f65c6c98..132f5ddde 100644 --- a/python/vyos/template.py +++ b/python/vyos/template.py @@ -18,7 +18,7 @@ import os from jinja2 import Environment from jinja2 import FileSystemLoader - +from jinja2 import ChainableUndefined from vyos.defaults import directories from vyos.util import chmod from vyos.util import chown @@ -27,6 +27,7 @@ from vyos.util import makedir # Holds template filters registered via register_filter() _FILTERS = {} +_TESTS = {} # reuse Environments with identical settings to improve performance @functools.lru_cache(maxsize=2) @@ -42,8 +43,10 @@ def _get_environment(location=None): cache_size=100, loader=loc_loader, trim_blocks=True, + undefined=ChainableUndefined, ) env.filters.update(_FILTERS) + env.tests.update(_TESTS) return env @@ -67,6 +70,26 @@ def register_filter(name, func=None): _FILTERS[name] = func return func +def register_test(name, func=None): + """Register a function to be available as test in templates under given name. + + It can also be used as a decorator, see below in this module for examples. + + :raise RuntimeError: + when trying to register a test after a template has been rendered already + :raise ValueError: when trying to register a name which was taken already + """ + if func is None: + return functools.partial(register_test, name) + if _get_environment.cache_info().currsize: + raise RuntimeError( + "Tests can only be registered before rendering the first template" + ) + if name in _TESTS: + raise ValueError(f"A test with name {name!r} was registered already") + _TESTS[name] = func + return func + def render_to_string(template, content, formater=None, location=None): """Render a template from the template directory, raise on any errors. @@ -127,6 +150,14 @@ def render( ################################## # Custom template filters follow # ################################## +@register_filter('force_to_list') +def force_to_list(value): + """ Convert scalars to single-item lists and leave lists untouched """ + if isinstance(value, list): + return value + else: + return [value] + @register_filter('ip_from_cidr') def ip_from_cidr(prefix): """ Take an IPv4/IPv6 CIDR host and strip cidr mask. @@ -516,6 +547,19 @@ def nft_rule(rule_conf, fw_name, rule_id, ip_name='ip'): from vyos.firewall import parse_rule return parse_rule(rule_conf, fw_name, rule_id, ip_name) +@register_filter('nft_default_rule') +def nft_default_rule(fw_conf, fw_name): + output = ['counter'] + default_action = fw_conf.get('default_action', 'accept') + + if 'enable_default_log' in fw_conf: + action_suffix = default_action[:1].upper() + output.append(f'log prefix "[{fw_name[:19]}-default-{action_suffix}] "') + + output.append(nft_action(default_action)) + output.append(f'comment "{fw_name} default-action {default_action}"') + return " ".join(output) + @register_filter('nft_state_policy') def nft_state_policy(conf, state, ipv6=False): out = [f'ct state {state}'] @@ -535,6 +579,7 @@ def nft_intra_zone_action(zone_conf, ipv6=False): if 'intra_zone_filtering' in zone_conf: intra_zone = zone_conf['intra_zone_filtering'] fw_name = 'ipv6_name' if ipv6 else 'name' + name_prefix = 'NAME6_' if ipv6 else 'NAME_' if 'action' in intra_zone: if intra_zone['action'] == 'accept': @@ -542,5 +587,57 @@ def nft_intra_zone_action(zone_conf, ipv6=False): return intra_zone['action'] elif dict_search_args(intra_zone, 'firewall', fw_name): name = dict_search_args(intra_zone, 'firewall', fw_name) - return f'jump {name}' + return f'jump {name_prefix}{name}' return 'return' + +@register_test('vyos_defined') +def vyos_defined(value, test_value=None, var_type=None): + """ + Jinja2 plugin to test if a variable is defined and not none - vyos_defined + will test value if defined and is not none and return true or false. + + If test_value is supplied, the value must also pass == test_value to return true. + If var_type is supplied, the value must also be of the specified class/type + + Examples: + 1. Test if var is defined and not none: + {% if foo is vyos_defined %} + ... + {% endif %} + + 2. Test if variable is defined, not none and has value "something" + {% if bar is vyos_defined("something") %} + ... + {% endif %} + + Parameters + ---------- + value : any + Value to test from ansible + test_value : any, optional + Value to test in addition of defined and not none, by default None + var_type : ['float', 'int', 'str', 'list', 'dict', 'tuple', 'bool'], optional + Type or Class to test for + + Returns + ------- + boolean + True if variable matches criteria, False in other cases. + + Implementation inspired and re-used from https://github.com/aristanetworks/ansible-avd/ + """ + + from jinja2 import Undefined + + if isinstance(value, Undefined) or value is None: + # Invalid value - return false + return False + elif test_value is not None and value != test_value: + # Valid value but not matching the optional argument + return False + elif str(var_type).lower() in ['float', 'int', 'str', 'list', 'dict', 'tuple', 'bool'] and str(var_type).lower() != type(value).__name__: + # Invalid class - return false + return False + else: + # Valid value and is matching optional argument if provided - return true + return True diff --git a/python/vyos/util.py b/python/vyos/util.py index 954c6670d..de55e108b 100644 --- a/python/vyos/util.py +++ b/python/vyos/util.py @@ -774,6 +774,14 @@ def dict_search_recursive(dict_object, key): for x in dict_search_recursive(j, key): yield x +def get_bridge_fdb(interface): + """ Returns the forwarding database entries for a given interface """ + if not os.path.exists(f'/sys/class/net/{interface}'): + return None + from json import loads + tmp = loads(cmd(f'bridge -j fdb show dev {interface}')) + return tmp + def get_interface_config(interface): """ Returns the used encapsulation protocol for given interface. If interface does not exist, None is returned. @@ -952,14 +960,23 @@ def install_into_config(conf, config_paths, override_prompt=True): return None count = 0 + failed = [] for path in config_paths: if override_prompt and conf.exists(path) and not conf.is_multi(path): if not ask_yes_no(f'Config node "{node}" already exists. Do you want to overwrite it?'): continue - cmd(f'/opt/vyatta/sbin/my_set {path}') - count += 1 + try: + cmd(f'/opt/vyatta/sbin/my_set {path}') + count += 1 + except: + failed.append(path) + + if failed: + print(f'Failed to install {len(failed)} value(s). Commands to manually install:') + for path in failed: + print(f'set {path}') if count > 0: print(f'{count} value(s) installed. Use "compare" to see the pending changes, and "commit" to apply.') @@ -972,6 +989,11 @@ def is_wwan_connected(interface): if not interface.startswith('wwan'): raise ValueError(f'Specified interface "{interface}" is not a WWAN interface') + # ModemManager is required for connection(s) - if service is not running, + # there won't be any connection at all! + if not is_systemd_service_active('ModemManager.service'): + return False + modem = interface.lstrip('wwan') tmp = cmd(f'mmcli --modem {modem} --output-json') @@ -988,3 +1010,17 @@ def boot_configuration_complete() -> bool: if os.path.isfile(config_status): return True return False + +def sysctl_read(name): + """ Read and return current value of sysctl() option """ + tmp = cmd(f'sysctl {name}') + return tmp.split()[-1] + +def sysctl_write(name, value): + """ Change value via sysctl() - return True if changed, False otherwise """ + tmp = cmd(f'sysctl {name}') + # last list index contains the actual value - only write if value differs + if sysctl_read(name) != str(value): + call(f'sysctl -wq {name}={value}') + return True + return False diff --git a/python/vyos/validate.py b/python/vyos/validate.py index 0dad2a6cb..e005da0e4 100644 --- a/python/vyos/validate.py +++ b/python/vyos/validate.py @@ -43,19 +43,14 @@ def _are_same_ip(one, two): s_two = AF_INET if is_ipv4(two) else AF_INET6 return inet_pton(f_one, one) == inet_pton(f_one, two) -def is_intf_addr_assigned(intf, addr): - if '/' in addr: - ip,mask = addr.split('/') - return _is_intf_addr_assigned(intf, ip, mask) - return _is_intf_addr_assigned(intf, addr) - -def _is_intf_addr_assigned(intf, address, netmask=None): +def is_intf_addr_assigned(intf, address) -> bool: """ Verify if the given IPv4/IPv6 address is assigned to specific interface. It can check both a single IP address (e.g. 192.0.2.1 or a assigned CIDR address 192.0.2.1/24. """ from vyos.template import is_ipv4 + from netifaces import ifaddresses from netifaces import AF_INET from netifaces import AF_INET6 @@ -76,6 +71,9 @@ def _is_intf_addr_assigned(intf, address, netmask=None): addr_type = AF_INET if is_ipv4(address) else AF_INET6 # Check every IP address on this interface for a match + netmask = None + if '/' in address: + address, netmask = address.split('/') for ip in ifaces.get(addr_type,[]): # ip can have the interface name in the 'addr' field, we need to remove it # {'addr': 'fe80::a00:27ff:fec5:f821%eth2', 'netmask': 'ffff:ffff:ffff:ffff::'} @@ -99,14 +97,20 @@ def _is_intf_addr_assigned(intf, address, netmask=None): return False -def is_addr_assigned(addr): - """ - Verify if the given IPv4/IPv6 address is assigned to any interface - """ +def is_addr_assigned(ip_address, vrf=None) -> bool: + """ Verify if the given IPv4/IPv6 address is assigned to any interfac """ from netifaces import interfaces - for intf in interfaces(): - tmp = is_intf_addr_assigned(intf, addr) - if tmp == True: + from vyos.util import get_interface_config + from vyos.util import dict_search + for interface in interfaces(): + # Check if interface belongs to the requested VRF, if this is not the + # case there is no need to proceed with this data set - continue loop + # with next element + tmp = get_interface_config(interface) + if dict_search('master', tmp) != vrf: + continue + + if is_intf_addr_assigned(interface, ip_address): return True return False diff --git a/python/vyos/xml/__init__.py b/python/vyos/xml/__init__.py index e0eacb2d1..6db446a40 100644 --- a/python/vyos/xml/__init__.py +++ b/python/vyos/xml/__init__.py @@ -46,8 +46,8 @@ def is_tag(lpath): def is_leaf(lpath, flat=True): return load_configuration().is_leaf(lpath, flat) -def component_versions(): - return load_configuration().component_versions() +def component_version(): + return load_configuration().component_version() def defaults(lpath, flat=False): return load_configuration().defaults(lpath, flat) diff --git a/python/vyos/xml/definition.py b/python/vyos/xml/definition.py index 5e0d5282c..bc3892b42 100644 --- a/python/vyos/xml/definition.py +++ b/python/vyos/xml/definition.py @@ -249,10 +249,11 @@ class XML(dict): # @lru_cache(maxsize=100) # XXX: need to use cachetool instead - for later - def component_versions(self) -> dict: - sort_component = sorted(self[kw.component_version].items(), - key = lambda kv: kv[0]) - return dict(sort_component) + def component_version(self) -> dict: + d = {} + for k in sorted(self[kw.component_version]): + d[k] = int(self[kw.component_version][k]) + return d def defaults(self, lpath, flat): d = self[kw.default] |