From 938a3be60a5f5c23687c7b24258534e6a8d986e5 Mon Sep 17 00:00:00 2001
From: David Vazgenovich Shakaryan <dvshakaryan@gmail.com>
Date: Tue, 16 Dec 2025 04:21:57 -0800
Subject: support PersistentKeepalive

---
 wg-genconf.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/wg-genconf.py b/wg-genconf.py
index b56347a..bcc7efe 100755
--- a/wg-genconf.py
+++ b/wg-genconf.py
@@ -55,6 +55,7 @@ class Interface(collections.UserDict):
     _INHERITABLE = [
         'port',
         'fwmark',
+        'keepalive',
 
         'file-prefix',
         'name-format',
@@ -174,6 +175,8 @@ def gc_if_data(if_):
             'pubkey': peer['pubkey'],
             'ips': ipspecs_to_ips(peer, peerspec.get('ips', ['{peer}'])),
             'endpoint': None,
+            'keepalive': (peerspec['keepalive'] if 'keepalive' in peerspec else
+                if_.get('keepalive')),
         }
         if (host := peer.get('host')):
             peer_data['endpoint'] = f'{host}:{peer.get('port', 51820)}'
@@ -203,6 +206,8 @@ def gc_if_wgquick(if_data):
             buf.write(f'AllowedIPs = {ip}\n')
         if (endpoint := peer_data.get('endpoint')):
             buf.write(f'Endpoint = {endpoint}\n')
+        if (keepalive := peer_data.get('keepalive')):
+            buf.write(f'PersistentKeepalive = {keepalive}\n')
 
     return buf
 
@@ -244,6 +249,8 @@ def gc_if_systemd_netdev(if_data):
             buf.write(f'AllowedIPs={ip}\n')
         if (endpoint := peer_data.get('endpoint')):
             buf.write(f'Endpoint={endpoint}\n')
+        if (keepalive := peer_data.get('keepalive')):
+            buf.write(f'PersistentKeepalive={keepalive}\n')
 
     return buf
 
-- 
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