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authorChristian Poessinger <christian@poessinger.com>2020-03-04 19:51:37 +0100
committerChristian Poessinger <christian@poessinger.com>2020-03-04 21:45:23 +0100
commit5bf9dfd17096af6e7cf06e8e20eb16e8e55b9177 (patch)
tree6e02e47c2813d30c9bab5ce25b3a0d45061bb268 /src/conf_mode/vrf.py
parentbb705d1a90cad14f07b5e61c44365868283feee9 (diff)
downloadvyos-1x-5bf9dfd17096af6e7cf06e8e20eb16e8e55b9177.tar.gz
vyos-1x-5bf9dfd17096af6e7cf06e8e20eb16e8e55b9177.zip
vrf: T31: support add/remove of interfaces from vrf
Diffstat (limited to 'src/conf_mode/vrf.py')
-rwxr-xr-xsrc/conf_mode/vrf.py81
1 files changed, 52 insertions, 29 deletions
diff --git a/src/conf_mode/vrf.py b/src/conf_mode/vrf.py
index c2bbc72b3..ad2b72a5b 100755
--- a/src/conf_mode/vrf.py
+++ b/src/conf_mode/vrf.py
@@ -24,6 +24,7 @@ from vyos.configdict import list_diff
from vyos import ConfigError
default_config_data = {
+ 'deleted': False,
'vrf_add': [],
'vrf_existing': [],
'vrf_remove': []
@@ -63,49 +64,71 @@ def get_config():
if not conf.exists(cfg_base):
# get all currently effetive VRFs and mark them for deletion
vrf_config['vrf_remove'] = conf.list_effective_nodes(cfg_base + ['name'])
- return vrf_config
-
- # Determine vrf interfaces (currently effective) - to determine which
- # vrf interface is no longer present and needs to be removed
- eff_vrf = conf.list_effective_nodes(cfg_base + ['name'])
- act_vrf = conf.list_nodes(cfg_base + ['name'])
- vrf_config['vrf_remove'] = list_diff(eff_vrf, act_vrf)
-
- # read in individual VRF definition and build up
- # configuration
- for name in conf.list_nodes(cfg_base + ['name']):
+ else:
+ # Determine vrf interfaces (currently effective) - to determine which
+ # vrf interface is no longer present and needs to be removed
+ eff_vrf = conf.list_effective_nodes(cfg_base + ['name'])
+ act_vrf = conf.list_nodes(cfg_base + ['name'])
+ vrf_config['vrf_remove'] = list_diff(eff_vrf, act_vrf)
+
+ # read in individual VRF definition and build up
+ # configuration
+ for name in conf.list_nodes(cfg_base + ['name']):
+ vrf_inst = {
+ 'description' : '\0',
+ 'members': [],
+ 'name' : name,
+ 'table' : '',
+ 'table_mod': False
+ }
+ conf.set_level(cfg_base + ['name', name])
+
+ if conf.exists(['table']):
+ # VRF table can't be changed on demand, thus we need to read in the
+ # current and the effective routing table number
+ act_table = conf.return_value(['table'])
+ eff_table = conf.return_effective_value(['table'])
+ vrf_inst['table'] = act_table
+ if eff_table and eff_table != act_table:
+ vrf_inst['table_mod'] = True
+
+ if conf.exists(['description']):
+ vrf_inst['description'] = conf.return_value(['description'])
+
+ # find member interfaces of this particulat VRF
+ vrf_inst['members'] = interfaces_with_vrf(name)
+
+ # append individual VRF configuration to global configuration list
+ vrf_config['vrf_add'].append(vrf_inst)
+
+ # check VRFs which need to be removed as they are not allowed to have
+ # interfaces attached
+ tmp = []
+ for name in vrf_config['vrf_remove']:
vrf_inst = {
- 'description' : '\0',
'members': [],
'name' : name,
- 'table' : '',
- 'table_mod': False
}
- conf.set_level(cfg_base + ['name', name])
-
- if conf.exists(['table']):
- # VRF table can't be changed on demand, thus we need to read in the
- # current and the effective routing table number
- act_table = conf.return_value(['table'])
- eff_table = conf.return_effective_value(['table'])
- vrf_inst['table'] = act_table
- if eff_table and eff_table != act_table:
- vrf_inst['table_mod'] = True
-
- if conf.exists(['description']):
- vrf_inst['description'] = conf.return_value(['description'])
# find member interfaces of this particulat VRF
vrf_inst['members'] = interfaces_with_vrf(name)
- # append individual VRF configuration to global configuration list
- vrf_config['vrf_add'].append(vrf_inst)
+ # append individual VRF configuration to temporary configuration list
+ tmp.append(vrf_inst)
+ # replace values in vrf_remove with list of dictionaries
+ # as we need it in verify() - we can't delete a VRF with members attached
+ vrf_config['vrf_remove'] = tmp
return vrf_config
def verify(vrf_config):
# ensure VRF is not assigned to any interface
+ for vrf in vrf_config['vrf_remove']:
+ if len(vrf['members']) > 0:
+ raise ConfigError('VRF "{}" can not be deleted as it has active members'.format(vrf['name']))
+
+ # routing table id can't be changed - OS restriction
for vrf in vrf_config['vrf_add']:
if vrf['table_mod']:
raise ConfigError('VRF routing table id modification is not possible')