Merge pull request #33352 from YHNdnzj/freeconp-void

[thirdparty/systemd.git] / src / network / networkd-link.c

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 192e9df979b66e35dde903207a990ee9bcc62b9f..6b0f09926a07698c5bc59cba1f061c0688927949 100644 (file)
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+/* Make sure the net/if.h header is included before any linux/ one */
 #include <net/if.h>
 #include <netinet/in.h>
 #include <linux/if.h>
@@ -1880,7 +1881,7 @@ static int link_admin_state_up(Link *link) {
 
         /* We set the ipv6 mtu after the device mtu, but the kernel resets
          * ipv6 mtu on NETDEV_UP, so we need to reset it. */
-        r = link_set_ipv6_mtu(link);
+        r = link_set_ipv6_mtu(link, LOG_INFO);
         if (r < 0)
                 log_link_warning_errno(link, r, "Cannot set IPv6 MTU, ignoring: %m");
 
@@ -2433,6 +2434,13 @@ static int link_update_mtu(Link *link, sd_netlink_message *message) {
 
         link->mtu = mtu;
 
+        if (IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) {
+                /* The kernel resets IPv6 MTU after changing device MTU. So, we need to re-set IPv6 MTU again. */
+                r = link_set_ipv6_mtu(link, LOG_INFO);
+                if (r < 0)
+                        log_link_warning_errno(link, r, "Failed to set IPv6 MTU, ignoring: %m");
+        }
+
         if (link->dhcp_client) {
                 r = sd_dhcp_client_set_mtu(link->dhcp_client, link->mtu);
                 if (r < 0)
@@ -2530,7 +2538,7 @@ static int link_update_name(Link *link, sd_netlink_message *message) {
         if (link->dhcp6_client) {
                 r = sd_dhcp6_client_set_ifname(link->dhcp6_client, link->ifname);
                 if (r < 0)
-                        return log_link_debug_errno(link, r, "Failed to update interface name in DHCP6 client: %m");
+                        return log_link_debug_errno(link, r, "Failed to update interface name in DHCPv6 client: %m");
         }
 
         if (link->ndisc) {