firewall: T8761: re-introduce VRF interface names in generated firewall config

This change re-implements the intended behaviour from T4180 aswell as from
T4506, it ensures that both the vrf-member interface aswell as the vrf itself
is added as an oifname -> meaning that traffic traversing and originating from
withing VyOS is matches outbound.

Changes done by c-po:
* re-sort dependency list to keep diff low
* vyos.configdict.is_vrf_changed() should return early and not carry
  over the to-be return value
* keep common coding style (dict by . separation) in nftables-zone.j2

Co-authored-by: Christian Breunig <christian@breunig.cc>

1 files changed, 12 insertions, 1 deletions

diff --git a/src/conf_mode/interfaces_dummy.py b/src/conf_mode/interfaces_dummy.py
index c35511199..adaf1958b 100755
--- a/src/conf_mode/interfaces_dummy.py
+++ b/src/conf_mode/interfaces_dummy.py
@@ -18,6 +18,9 @@ from sys import exit
 
 from vyos.config import Config
 from vyos.configdict import get_interface_dict
+from vyos.configdict import is_vrf_changed
+from vyos.configdep import set_dependents
+from vyos.configdep import call_dependents
 from vyos.configverify import verify_vrf
 from vyos.configverify import verify_address
 from vyos.configverify import verify_bridge_delete
@@ -37,7 +40,12 @@ def get_config(config=None):
     else:
         conf = Config()
     base = ['interfaces', 'dummy']
-    _, dummy = get_interface_dict(conf, base)
+    ifname, dummy = get_interface_dict(conf, base)
+
+    # Check vrf membership, to ensure firewall is updated
+    if is_vrf_changed(conf, ifname):
+        set_dependents('firewall', conf)
+
     return dummy
 
 def verify(dummy):
@@ -63,6 +71,9 @@ def apply(dummy):
     else:
         d.update(dummy)
 
+    # run the dependents
+    call_dependents()
+
     return None
 
 if __name__ == '__main__':