From: Tobias Brunner <tobias@strongswan.org>
Date: Mon, 11 Dec 2017 09:35:30 +0000 (+0100)
Subject: kernel-netlink: Fix compilation on old kernels not defining IFA_F_NODAD
X-Git-Tag: 5.6.2dr4~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3c36c95539d0239c9dd499b1c759f22a1fc60c6d;p=thirdparty%2Fstrongswan.git

kernel-netlink: Fix compilation on old kernels not defining IFA_F_NODAD

Fixes #2490.
---

diff --git a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
index a21d0ae7f1..e4ded32252 100644
--- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
@@ -2333,7 +2333,9 @@ static status_t manage_ipaddr(private_kernel_netlink_net_t *this, int nlmsg_type
 
 	if (ip->get_family(ip) == AF_INET6)
 	{
+#ifdef IFA_F_NODAD
 		msg->ifa_flags |= IFA_F_NODAD;
+#endif
 		if (this->rta_prefsrc_for_ipv6)
 		{
 			/* if source routes are possible we let the virtual IP get