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authorDaniel Lezcano <dlezcano@fr.ibm.com>2008-01-10 22:43:42 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:01:45 -0800
commit06bfe655e7db7719c0eb51eb420fb9c2a6aa1e00 (patch)
tree6343c97d6004f9153c1f367bd4e23095ec612d4f
parentbfeade087005278fc8cafe230b7658a4f40c5acb (diff)
[NETNS][IPV6]: inet6_addr - ipv6_chk_same_addr namespace aware
This patch makes ipv6_chk_same_addr function to be aware of the network namespace. The addresses not belonging to the network namespace are discarded. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv6/addrconf.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f35c3df410d..41cc31ee297 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -149,7 +149,8 @@ static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
static void inet6_prefix_notify(int event, struct inet6_dev *idev,
struct prefix_info *pinfo);
-static int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev);
+static int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
+ struct net_device *dev);
static ATOMIC_NOTIFIER_HEAD(inet6addr_chain);
@@ -560,7 +561,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
write_lock(&addrconf_hash_lock);
/* Ignore adding duplicate addresses on an interface */
- if (ipv6_chk_same_addr(addr, idev->dev)) {
+ if (ipv6_chk_same_addr(&init_net, addr, idev->dev)) {
ADBG(("ipv6_add_addr: already assigned\n"));
err = -EEXIST;
goto out;
@@ -1229,12 +1230,15 @@ int ipv6_chk_addr(struct net *net, struct in6_addr *addr,
EXPORT_SYMBOL(ipv6_chk_addr);
static
-int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev)
+int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
+ struct net_device *dev)
{
struct inet6_ifaddr * ifp;
u8 hash = ipv6_addr_hash(addr);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
+ if (ifp->idev->dev->nd_net != net)
+ continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev)
break;