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path: root/src/conf_mode/interfaces-macsec.py
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-rwxr-xr-xsrc/conf_mode/interfaces-macsec.py11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/conf_mode/interfaces-macsec.py b/src/conf_mode/interfaces-macsec.py
index 65b0612ea..870049a88 100755
--- a/src/conf_mode/interfaces-macsec.py
+++ b/src/conf_mode/interfaces-macsec.py
@@ -22,6 +22,7 @@ from sys import exit
from vyos.config import Config
from vyos.configdict import get_interface_dict
from vyos.configdict import is_node_changed
+from vyos.configdict import is_source_interface
from vyos.configverify import verify_vrf
from vyos.configverify import verify_address
from vyos.configverify import verify_bridge_delete
@@ -65,6 +66,10 @@ def get_config(config=None):
if is_node_changed(conf, base + [ifname, 'source_interface']):
macsec.update({'shutdown_required': {}})
+ if 'source_interface' in macsec:
+ tmp = is_source_interface(conf, macsec['source_interface'], 'macsec')
+ if tmp and tmp != ifname: macsec.update({'is_source_interface' : tmp})
+
return macsec
@@ -97,6 +102,12 @@ def verify(macsec):
# gcm-aes-128 requires a 128bit long key - 64 characters (string) = 32byte = 256bit
raise ConfigError('gcm-aes-128 requires a 256bit long key!')
+ if 'is_source_interface' in macsec:
+ tmp = macsec['is_source_interface']
+ src_ifname = macsec['source_interface']
+ raise ConfigError(f'Can not use source-interface "{src_ifname}", it already ' \
+ f'belongs to interface "{tmp}"!')
+
if 'source_interface' in macsec:
# MACsec adds a 40 byte overhead (32 byte MACsec + 8 bytes VLAN 802.1ad
# and 802.1q) - we need to check the underlaying MTU if our configured