Commit 3d171f39 authored by Lubomir Rintel's avatar Lubomir Rintel Committed by David S. Miller
Browse files

ipv6: always add flag an address that failed DAD with DADFAILED



The userspace needs to know why is the address being removed so that it can
perhaps obtain a new address.

Without the DADFAILED flag it's impossible to distinguish removal of a
temporary and tentative address due to DAD failure from other reasons (device
removed, manual address removal).
Signed-off-by: default avatarLubomir Rintel <lkundrak@v3.sk>
Acked-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 541b8e29
...@@ -1772,12 +1772,13 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add ...@@ -1772,12 +1772,13 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed) static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed)
{ {
if (dad_failed)
ifp->flags |= IFA_F_DADFAILED;
if (ifp->flags&IFA_F_PERMANENT) { if (ifp->flags&IFA_F_PERMANENT) {
spin_lock_bh(&ifp->lock); spin_lock_bh(&ifp->lock);
addrconf_del_dad_work(ifp); addrconf_del_dad_work(ifp);
ifp->flags |= IFA_F_TENTATIVE; ifp->flags |= IFA_F_TENTATIVE;
if (dad_failed)
ifp->flags |= IFA_F_DADFAILED;
spin_unlock_bh(&ifp->lock); spin_unlock_bh(&ifp->lock);
if (dad_failed) if (dad_failed)
ipv6_ifa_notify(0, ifp); ipv6_ifa_notify(0, ifp);
......
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