diff options
Diffstat (limited to 'src/conf_mode/interfaces-wirelessmodem.py')
| -rwxr-xr-x | src/conf_mode/interfaces-wirelessmodem.py | 152 |
1 files changed, 43 insertions, 109 deletions
diff --git a/src/conf_mode/interfaces-wirelessmodem.py b/src/conf_mode/interfaces-wirelessmodem.py index 35e3c583c..0964a8f4d 100755 --- a/src/conf_mode/interfaces-wirelessmodem.py +++ b/src/conf_mode/interfaces-wirelessmodem.py @@ -16,44 +16,20 @@ import os -from copy import deepcopy from fnmatch import fnmatch -from netifaces import interfaces from sys import exit from vyos.config import Config -from vyos.ifconfig import BridgeIf, Section +from vyos.configdict import dict_merge +from vyos.configverify import verify_vrf from vyos.template import render from vyos.util import call -from vyos.validate import is_member +from vyos.xml import defaults from vyos import ConfigError - from vyos import airbag airbag.enable() -default_config_data = { - 'apn': '', - 'chat_script': '', - 'deleted': False, - 'description': '', - 'device': '', - 'disable': False, - 'disable_link_detect': 1, - 'on_demand': False, - 'metric': '10', - 'mtu': '1500', - 'name_server': True, - 'is_bridge_member': False, - 'intf': '', - 'vrf': '' -} - -def check_kmod(): - modules = ['option', 'usb_wwan', 'usbserial'] - for module in modules: - if not os.path.exists(f'/sys/module/{module}'): - if call(f'modprobe {module}') != 0: - raise ConfigError(f'Loading Kernel module {module} failed') +k_mod = ['option', 'usb_wwan', 'usbserial'] def find_device_file(device): """ Recurively search /dev for the given device file and return its full path. @@ -66,115 +42,80 @@ def find_device_file(device): return None def get_config(): - wwan = deepcopy(default_config_data) + """ Retrive CLI config as dictionary. Dictionary can never be empty, + as at least the interface name will be added or a deleted flag """ conf = Config() # determine tagNode instance if 'VYOS_TAGNODE_VALUE' not in os.environ: raise ConfigError('Interface (VYOS_TAGNODE_VALUE) not specified') - wwan['intf'] = os.environ['VYOS_TAGNODE_VALUE'] - wwan['chat_script'] = f"/etc/ppp/peers/chat.{wwan['intf']}" + # retrieve interface default values + base = ['interfaces', 'wirelessmodem'] + default_values = defaults(base) + + ifname = os.environ['VYOS_TAGNODE_VALUE'] + base = base + [ifname] + wwan = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True) # Check if interface has been removed - if not conf.exists('interfaces wirelessmodem ' + wwan['intf']): - wwan['deleted'] = True - return wwan - - # set new configuration level - conf.set_level('interfaces wirelessmodem ' + wwan['intf']) - - # get metrick for backup default route - if conf.exists(['apn']): - wwan['apn'] = conf.return_value(['apn']) - - # get metrick for backup default route - if conf.exists(['backup', 'distance']): - wwan['metric'] = conf.return_value(['backup', 'distance']) - - # Retrieve interface description - if conf.exists(['description']): - wwan['description'] = conf.return_value(['description']) - - # System device name - if conf.exists(['device']): - tmp = conf.return_value(['device']) - wwan['device'] = find_device_file(tmp) - # If device file was not found in /dev we will just re-use - # the plain device name, thus we can trigger the exception - # in verify() as it's a non existent file - if wwan['device'] == None: - wwan['device'] = tmp - - # disable interface - if conf.exists('disable'): - wwan['disable'] = True - - # ignore link state changes - if conf.exists('disable-link-detect'): - wwan['disable_link_detect'] = 2 - - # Do not use DNS servers provided by the peer - if conf.exists(['mtu']): - wwan['mtu'] = conf.return_value(['mtu']) - - # Do not use DNS servers provided by the peer - if conf.exists(['no-peer-dns']): - wwan['name_server'] = False - - # Access concentrator name (only connect to this concentrator) - if conf.exists(['ondemand']): - wwan['on_demand'] = True - - # retrieve VRF instance - if conf.exists('vrf'): - wwan['vrf'] = conf.return_value(['vrf']) + if wwan == {}: + wwan.update({'deleted' : ''}) + + # We have gathered the dict representation of the CLI, but there are + # default options which we need to update into the dictionary + # retrived. + wwan = dict_merge(default_values, wwan) + + # Add interface instance name into dictionary + wwan.update({'ifname': ifname}) return wwan def verify(wwan): - if wwan['deleted']: + if 'deleted' in wwan.keys(): return None - if not wwan['apn']: - raise ConfigError('No APN configured for "{intf}"'.format(**wwan)) + if not 'apn' in wwan.keys(): + raise ConfigError('No APN configured for "{ifname}"'.format(**wwan)) - if not wwan['device']: + if not 'device' in wwan.keys(): raise ConfigError('Physical "device" must be configured') # we can not use isfile() here as Linux device files are no regular files # thus the check will return False - if not os.path.exists('{device}'.format(**wwan)): + if not os.path.exists(find_device_file(wwan['device'])): raise ConfigError('Device "{device}" does not exist'.format(**wwan)) - if wwan['vrf'] and wwan['vrf'] not in interfaces(): - raise ConfigError('VRF "{vrf}" does not exist'.format(**wwan)) + verify_vrf(wwan) return None def generate(wwan): # set up configuration file path variables where our templates will be # rendered into - intf = wwan['intf'] - config_wwan = f'/etc/ppp/peers/{intf}' - config_wwan_chat = wwan['chat_script'] - script_wwan_pre_up = f'/etc/ppp/ip-pre-up.d/1010-vyos-wwan-{intf}' - script_wwan_ip_up = f'/etc/ppp/ip-up.d/1010-vyos-wwan-{intf}' - script_wwan_ip_down = f'/etc/ppp/ip-down.d/1010-vyos-wwan-{intf}' + ifname = wwan['ifname'] + config_wwan = f'/etc/ppp/peers/{ifname}' + config_wwan_chat = f'/etc/ppp/peers/chat.{ifname}' + script_wwan_pre_up = f'/etc/ppp/ip-pre-up.d/1010-vyos-wwan-{ifname}' + script_wwan_ip_up = f'/etc/ppp/ip-up.d/1010-vyos-wwan-{ifname}' + script_wwan_ip_down = f'/etc/ppp/ip-down.d/1010-vyos-wwan-{ifname}' config_files = [config_wwan, config_wwan_chat, script_wwan_pre_up, script_wwan_ip_up, script_wwan_ip_down] # Always hang-up WWAN connection prior generating new configuration file - call(f'systemctl stop ppp@{intf}.service') + call(f'systemctl stop ppp@{ifname}.service') - if wwan['deleted']: + if 'deleted' in wwan: # Delete PPP configuration files for file in config_files: if os.path.exists(file): os.unlink(file) else: + wwan['device'] = find_device_file(wwan['device']) + # Create PPP configuration files render(config_wwan, 'wwan/peer.tmpl', wwan) # Create PPP chat script @@ -195,26 +136,19 @@ def generate(wwan): return None def apply(wwan): - if wwan['deleted']: + if 'deleted' in wwan.keys(): # bail out early return None - if not wwan['disable']: + if not 'disable' in wwan.keys(): # "dial" WWAN connection - intf = wwan['intf'] - call(f'systemctl start ppp@{intf}.service') - - # re-add ourselves to any bridge we might have fallen out of - # FIXME: wwan isn't under vyos.ifconfig so we can't call - # Interfaces.add_to_bridge() so STP settings won't get applied - if wwan['is_bridge_member'] in Section.interfaces('bridge'): - BridgeIf(wwan['is_bridge_member'], create=False).add_port(wwan['intf']) + call('systemctl start ppp@{ifname}.service'.format(**wwan)) return None if __name__ == '__main__': try: - check_kmod() + check_kmod(k_mod) c = get_config() verify(c) generate(c) |