From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 1 Jun 2020 05:22:06 +0000 (+0900)
Subject: network: wireguard: set ListenPort= when no peers are configured
X-Git-Tag: v246-rc1~228^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50254f55006b896639a14af1254536ce979a9810;p=thirdparty%2Fsystemd.git

network: wireguard: set ListenPort= when no peers are configured

Closes #15786.
---

diff --git a/src/network/netdev/wireguard.c b/src/network/netdev/wireguard.c
index bfed13e2ecc..713cdaa8847 100644
--- a/src/network/netdev/wireguard.c
+++ b/src/network/netdev/wireguard.c
@@ -219,6 +219,7 @@ static int wireguard_set_interface(NetDev *netdev) {
         _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL;
         WireguardIPmask *mask_start = NULL;
         WireguardPeer *peer, *peer_start;
+        bool sent_once = false;
         uint32_t serial;
         Wireguard *w;
         int r;
@@ -227,7 +228,7 @@ static int wireguard_set_interface(NetDev *netdev) {
         w = WIREGUARD(netdev);
         assert(w);
 
-        for (peer_start = w->peers; peer_start; ) {
+        for (peer_start = w->peers; peer_start || !sent_once; ) {
                 uint16_t i = 0;
 
                 message = sd_netlink_message_unref(message);
@@ -278,6 +279,8 @@ static int wireguard_set_interface(NetDev *netdev) {
                 r = sd_netlink_send(netdev->manager->genl, message, &serial);
                 if (r < 0)
                         return log_netdev_error_errno(netdev, r, "Could not set wireguard device: %m");
+
+                sent_once = true;
         }
 
         return 0;