Merge pull request #21672 from yuwata/network-old-kernel-support

network: old kernel support

src/network/networkd-address.c

@@ -1314,6 +1314,14 @@ int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message,
         }
 
         r = sd_netlink_message_read_u32(message, IFA_FLAGS, &tmp->flags);
+        if (r == -ENODATA) {
+                unsigned char flags;
+
+                /* For old kernels. */
+                r = sd_rtnl_message_addr_get_flags(message, &flags);
+                if (r >= 0)
+                        tmp->flags = flags;
+        }
         if (r < 0) {
                 log_link_warning_errno(link, r, "rtnl: received address message without flags, ignoring: %m");
                 return 0;

src/network/networkd-route.c

@@ -1646,7 +1646,6 @@ int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, Ma
         Link *link = NULL;
         uint32_t ifindex;
         uint16_t type;
-        unsigned char table;
         size_t rta_len;
         int r;
 
@@ -1785,6 +1784,8 @@ int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, Ma
 
         r = sd_netlink_message_read_u32(message, RTA_TABLE, &tmp->table);
         if (r == -ENODATA) {
+                unsigned char table;
+
                 r = sd_rtnl_message_route_get_table(message, &table);
                 if (r >= 0)
                         tmp->table = table;