[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, 2 insertions, 1 deletions

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index ac8772dd968f..3150c4be3c0c 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -314,7 +314,8 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                          */
                         v4addr = LOOPBACK4_IPV6;
                         if (!(addr_type & IPV6_ADDR_MULTICAST)) {
-                                if (!ipv6_chk_addr(&addr->sin6_addr, dev, 0)) {
+                                if (!ipv6_chk_addr(&init_net, &addr->sin6_addr,
+                                                   dev, 0)) {
                                         if (dev)
                                                 dev_put(dev);
                                         err = -EADDRNOTAVAIL;