[NETNS][IPV6] fix some missing namespace

This patch adds some missing namespace
Signed-off-by: NDaniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/ip6_output.c

@@ -404,6 +404,7 @@ int ip6_forward(struct sk_buff *skb)
 	struct dst_entry *dst = skb->dst;
 	struct ipv6hdr *hdr = ipv6_hdr(skb);
 	struct inet6_skb_parm *opt = IP6CB(skb);
+	struct net *net = dst->dev->nd_net;
 
 	if (ipv6_devconf.forwarding == 0)
 		goto error;
@@ -450,7 +451,7 @@ int ip6_forward(struct sk_buff *skb)
 
 	/* XXX: idev->cnf.proxy_ndp? */
 	if (ipv6_devconf.proxy_ndp &&
-	    pneigh_lookup(&nd_tbl, &init_net, &hdr->daddr, skb->dev, 0)) {
+	    pneigh_lookup(&nd_tbl, net, &hdr->daddr, skb->dev, 0)) {
 		int proxied = ip6_forward_proxy_check(skb);
 		if (proxied > 0)
 			return ip6_input(skb);
@@ -911,9 +912,10 @@ static int ip6_dst_lookup_tail(struct sock *sk,
 			       struct dst_entry **dst, struct flowi *fl)
 {
 	int err;
+	struct net *net = sk->sk_net;
 
 	if (*dst == NULL)
-		*dst = ip6_route_output(sk->sk_net, sk, fl);
+		*dst = ip6_route_output(net, sk, fl);
 
 	if ((err = (*dst)->error))
 		goto out_err_release;
@@ -939,7 +941,7 @@ static int ip6_dst_lookup_tail(struct sock *sk,
 			struct flowi fl_gw;
 			int redirect;
 
-			ifp = ipv6_get_ifaddr(&init_net, &fl->fl6_src,
+			ifp = ipv6_get_ifaddr(net, &fl->fl6_src,
 					      (*dst)->dev, 1);
 
 			redirect = (ifp && ifp->flags & IFA_F_OPTIMISTIC);
@@ -954,7 +956,7 @@ static int ip6_dst_lookup_tail(struct sock *sk,
 				dst_release(*dst);
 				memcpy(&fl_gw, fl, sizeof(struct flowi));
 				memset(&fl_gw.fl6_dst, 0, sizeof(struct in6_addr));
-				*dst = ip6_route_output(sk->sk_net, sk, &fl_gw);
+				*dst = ip6_route_output(net, sk, &fl_gw);
 				if ((err = (*dst)->error))
 					goto out_err_release;
 			}

net/ipv6/ipv6_sockglue.c

@@ -107,6 +107,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 		    char __user *optval, int optlen)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
+	struct net *net = sk->sk_net;
 	int val, valbool;
 	int retv = -ENOPROTOOPT;
 
@@ -432,7 +433,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 			if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
 				goto e_inval;
 
-			if (__dev_get_by_index(&init_net, val) == NULL) {
+			if (__dev_get_by_index(net, val) == NULL) {
 				retv = -ENODEV;
 				break;
 			}

net/ipv6/route.c

@@ -2261,7 +2261,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 	skb_reset_mac_header(skb);
 	skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
 
-	rt = (struct rt6_info*) ip6_route_output(&init_net, NULL, &fl);
+	rt = (struct rt6_info*) ip6_route_output(net, NULL, &fl);
 	skb->dst = &rt->u.dst;
 
 	err = rt6_fill_node(skb, rt, &fl.fl6_dst, &fl.fl6_src, iif,