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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-03-13 12:23:29 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-13 12:23:29 -0800 |
| commit | e2577a065832f2c6d108de2e027891bdb2d78924 (patch) | |
| tree | e7d2d4f8c853fad7a896da5d3b7f8b6202d9e8a1 /net/ipv6/addrconf.c | |
| parent | 3f07d1295191cfa41125e4e61ee2064790070071 (diff) | |
| download | lwn-e2577a065832f2c6d108de2e027891bdb2d78924.tar.gz lwn-e2577a065832f2c6d108de2e027891bdb2d78924.zip | |
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/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 2 |
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) { |