From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 3 Feb 2021 08:07:24 +0000 (+0900)
Subject: network: allow to configure nexthop with null address
X-Git-Tag: v248-rc1~82^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9c4253d4713235be834d205fb8564c1c0418e2b;p=thirdparty%2Fsystemd.git

network: allow to configure nexthop with null address

Closes #18446.
---

diff --git a/src/network/networkd-nexthop.c b/src/network/networkd-nexthop.c
index a05026db406..fcbb25ba158 100644
--- a/src/network/networkd-nexthop.c
+++ b/src/network/networkd-nexthop.c
@@ -440,8 +440,9 @@ static int nexthop_section_verify(NextHop *nh) {
         if (section_is_invalid(nh->section))
                 return -EINVAL;
 
-        if (in_addr_is_null(nh->family, &nh->gw) < 0)
-                return -EINVAL;
+        if (nh->family == AF_UNSPEC)
+                /* When no Gateway= is specified, assume IPv4. */
+                nh->family = AF_INET;
 
         return 0;
 }