[NETNS][IPV6]: inet6_addr - check ipv6 address per namespace

When a new address is added, we must check if the new address does not
already exists.  This patch makes this check to be aware of a network
namespace, so the check will look if the address already exists for
the specified network namespace. While the addresses are browsed, the
addresses which do not belong to the 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>

1 files changed, 4 insertions, 4 deletions

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 29b5321e39c3..425c9ae8b315 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -653,8 +653,8 @@ static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t)
                         ldev = dev_get_by_index(&init_net, p->link);
 
                 if ((ipv6_addr_is_multicast(&p->laddr) ||
-                     likely(ipv6_chk_addr(&p->laddr, ldev, 0))) &&
-                    likely(!ipv6_chk_addr(&p->raddr, NULL, 0)))
+                     likely(ipv6_chk_addr(&init_net, &p->laddr, ldev, 0))) &&
+                    likely(!ipv6_chk_addr(&init_net, &p->raddr, NULL, 0)))
                         ret = 1;
 
                 if (ldev)
@@ -788,12 +788,12 @@ static inline int ip6_tnl_xmit_ctl(struct ip6_tnl *t)
                 if (p->link)
                         ldev = dev_get_by_index(&init_net, p->link);
 
-                if (unlikely(!ipv6_chk_addr(&p->laddr, ldev, 0)))
+                if (unlikely(!ipv6_chk_addr(&init_net, &p->laddr, ldev, 0)))
                         printk(KERN_WARNING
                                "%s xmit: Local address not yet configured!\n",
                                p->name);
                 else if (!ipv6_addr_is_multicast(&p->raddr) &&
-                         unlikely(ipv6_chk_addr(&p->raddr, NULL, 0)))
+                         unlikely(ipv6_chk_addr(&init_net, &p->raddr, NULL, 0)))
                         printk(KERN_WARNING
                                "%s xmit: Routing loop! "
                                "Remote address found on this node!\n",