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authorHerbert Xu <herbert@gondor.apana.org.au>2010-03-13 23:23:29 +0300
committerDavid S. Miller <davem@davemloft.net>2010-03-13 23:23:29 +0300
commite2577a065832f2c6d108de2e027891bdb2d78924 (patch)
treee7d2d4f8c853fad7a896da5d3b7f8b6202d9e8a1 /net
parent3f07d1295191cfa41125e4e61ee2064790070071 (diff)
downloadlinux-e2577a065832f2c6d108de2e027891bdb2d78924.tar.xz
ipv6: Send netlink notification when DAD fails
If we are managing IPv6 addresses using DHCP, it would be nice for user-space to be notified if an address configured through DHCP fails DAD. Otherwise user-space would have to poll to see whether DAD succeeds. This patch uses the existing notification mechanism and simply hooks it into the DAD failure code path. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/addrconf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 6cf3ee14ace3..3381b4317c27 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1380,6 +1380,8 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed)
if (dad_failed)
ifp->flags |= IFA_F_DADFAILED;
spin_unlock_bh(&ifp->lock);
+ if (dad_failed)
+ ipv6_ifa_notify(0, ifp);
in6_ifa_put(ifp);
#ifdef CONFIG_IPV6_PRIVACY
} else if (ifp->flags&IFA_F_TEMPORARY) {