From: Tom Gundersen <teg@jklm.no>
Date: Thu, 12 Feb 2015 13:15:41 +0000 (+0100)
Subject: networkd: explicitly enable/disable ipv6ll addresses
X-Git-Tag: v219~61
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=5c3072eab6d2e11d89452987b017541d4654ac05;ds=inline

networkd: explicitly enable/disable ipv6ll addresses

The kernel does not like getting an empty container, so just always pass the parameter, even if
it is the default.
---

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 7b488162f..f716e8231 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -1058,6 +1058,7 @@ static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 
 static int link_up(Link *link) {
         _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+        uint8_t ipv6ll_mode;
         int r;
 
         assert(link);
@@ -1109,12 +1110,11 @@ static int link_up(Link *link) {
                 return r;
         }
 
-        if (!link_ipv6ll_enabled(link)) {
-                r = sd_rtnl_message_append_u8(req, IFLA_INET6_ADDR_GEN_MODE, IN6_ADDR_GEN_MODE_NONE);
-                if (r < 0) {
-                        log_link_error(link, "Could not append IFLA_INET6_ADDR_GEN_MODE: %s", strerror(-r));
-                        return r;
-                }
+        ipv6ll_mode = link_ipv6ll_enabled(link) ? IN6_ADDR_GEN_MODE_EUI64 : IN6_ADDR_GEN_MODE_NONE;
+        r = sd_rtnl_message_append_u8(req, IFLA_INET6_ADDR_GEN_MODE, ipv6ll_mode);
+        if (r < 0) {
+                log_link_error(link, "Could not append IFLA_INET6_ADDR_GEN_MODE: %s", strerror(-r));
+                return r;
         }
 
         if (!in_addr_is_null(AF_INET6, &link->network->ipv6_token)) {