From: Susant Sahani <susant@redhat.com>
Date: Tue, 22 Jul 2014 11:21:53 +0000 (+0530)
Subject: networkd: add Patch of MTU discovery for IPIP and GRE
X-Git-Tag: v218~682
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=9243e967a370a9e69b0a81843288a9db3e2dfc62

networkd: add Patch of MTU discovery for IPIP and GRE

Add path of MTU disovery for IPIP and GRE Kind of tunnels
---

diff --git a/src/network/networkd-netdev-tunnel.c b/src/network/networkd-netdev-tunnel.c
index 75876960b..e5981a48d 100644
--- a/src/network/networkd-netdev-tunnel.c
+++ b/src/network/networkd-netdev-tunnel.c
@@ -75,6 +75,14 @@ static int netdev_ipip_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_m
                 return r;
         }
 
+        r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_IPTUN_PMTUDISC attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
         return r;
 }
 
@@ -181,6 +189,14 @@ static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_me
                 return r;
         }
 
+        r = sd_rtnl_message_append_u8(m, IFLA_GRE_PMTUDISC, t->pmtudisc);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_GRE_PMTUDISC attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
         return r;
 }