bond: T6303: system-mac is not allowed to be a multicast MAC address

(cherry picked from commit d8ddd7191d3004e886fa45a2cf9bd8dd5e7f5e14)

1 files changed, 11 insertions, 0 deletions

diff --git a/src/conf_mode/interfaces_bonding.py b/src/conf_mode/interfaces_bonding.py
index 371b219c0..5e5d5fba1 100755
--- a/src/conf_mode/interfaces_bonding.py
+++ b/src/conf_mode/interfaces_bonding.py
@@ -33,6 +33,7 @@ from vyos.ifconfig import BondIf
 from vyos.ifconfig.ethernet import EthernetIf
 from vyos.ifconfig import Section
 from vyos.template import render_to_string
+from vyos.utils.assertion import assert_mac
 from vyos.utils.dict import dict_search
 from vyos.utils.dict import dict_to_paths_values
 from vyos.utils.network import interface_exists
@@ -244,6 +245,16 @@ def verify(bond):
             raise ConfigError('primary interface only works for mode active-backup, ' \
                               'transmit-load-balance or adaptive-load-balance')
 
+    if 'system_mac' in bond:
+        if bond['mode'] != '802.3ad':
+            raise ConfigError('Actor MAC address only available in 802.3ad mode!')
+
+        system_mac = bond['system_mac']
+        try:
+            assert_mac(system_mac, test_all_zero=False)
+        except:
+            raise ConfigError(f'Cannot use a multicast MAC address "{system_mac}" as system-mac!')
+
     return None
 
 def generate(bond):