From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 31 Jan 2022 04:02:57 +0000 (+0900)
Subject: network: currently RADV requires MAC address whose length is ETH_ALEN
X-Git-Tag: v251-rc1~406^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=218a850268ca7839d1eecdc47fc6d602931e1e4f;p=thirdparty%2Fsystemd.git

network: currently RADV requires MAC address whose length is ETH_ALEN
---

diff --git a/src/network/networkd-radv.c b/src/network/networkd-radv.c
index 0c5eebc8157..507f0a0ccc8 100644
--- a/src/network/networkd-radv.c
+++ b/src/network/networkd-radv.c
@@ -57,6 +57,9 @@ bool link_radv_enabled(Link *link) {
         if (!link_may_have_ipv6ll(link))
                 return false;
 
+        if (link->hw_addr.length != ETH_ALEN)
+                return false;
+
         return link->network->router_prefix_delegation;
 }
 
@@ -547,6 +550,9 @@ static int radv_is_ready_to_configure(Link *link) {
         if (in6_addr_is_null(&link->ipv6ll_address))
                 return false;
 
+        if (link->hw_addr.length != ETH_ALEN || hw_addr_is_null(&link->hw_addr))
+                return false;
+
         if (link->network->router_emit_dns && !link->network->router_dns) {
                 _cleanup_free_ struct in6_addr *dns = NULL;
                 size_t n_dns;