net/ipv6: Pass net namespace to route functions

Pass network namespace reference into route add, delete and get
functions.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 18 insertions, 15 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index b2c0175125db..7ff7466c52e5 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1037,7 +1037,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 		goto out;
 	}
 
-	rt = addrconf_dst_alloc(idev, addr, false);
+	rt = addrconf_dst_alloc(net, idev, addr, false);
 	if (IS_ERR(rt)) {
 		err = PTR_ERR(rt);
 		rt = NULL;
@@ -1187,7 +1187,7 @@ cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires, bool del_r
 				       0, RTF_GATEWAY | RTF_DEFAULT);
 	if (rt) {
 		if (del_rt)
-			ip6_del_rt(rt);
+			ip6_del_rt(dev_net(ifp->idev->dev), rt);
 		else {
 			if (!(rt->rt6i_flags & RTF_EXPIRES))
 				rt6_set_expires(rt, expires);
@@ -2666,7 +2666,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao)
 		if (rt) {
 			/* Autoconf prefix route */
 			if (valid_lft == 0) {
-				ip6_del_rt(rt);
+				ip6_del_rt(net, rt);
 				rt = NULL;
 			} else if (addrconf_finite_timeout(rt_expires)) {
 				/* not infinity */
@@ -3333,7 +3333,8 @@ static void addrconf_gre_config(struct net_device *dev)
 }
 #endif
 
-static int fixup_permanent_addr(struct inet6_dev *idev,
+static int fixup_permanent_addr(struct net *net,
+				struct inet6_dev *idev,
 				struct inet6_ifaddr *ifp)
 {
 	/* !rt6i_node means the host route was removed from the
@@ -3343,7 +3344,7 @@ static int fixup_permanent_addr(struct inet6_dev *idev,
 	if (!ifp->rt || !ifp->rt->rt6i_node) {
 		struct rt6_info *rt, *prev;
 
-		rt = addrconf_dst_alloc(idev, &ifp->addr, false);
+		rt = addrconf_dst_alloc(net, idev, &ifp->addr, false);
 		if (IS_ERR(rt))
 			return PTR_ERR(rt);
 
@@ -3367,7 +3368,7 @@ static int fixup_permanent_addr(struct inet6_dev *idev,
 	return 0;
 }
 
-static void addrconf_permanent_addr(struct net_device *dev)
+static void addrconf_permanent_addr(struct net *net, struct net_device *dev)
 {
 	struct inet6_ifaddr *ifp, *tmp;
 	struct inet6_dev *idev;
@@ -3380,7 +3381,7 @@ static void addrconf_permanent_addr(struct net_device *dev)
 
 	list_for_each_entry_safe(ifp, tmp, &idev->addr_list, if_list) {
 		if ((ifp->flags & IFA_F_PERMANENT) &&
-		    fixup_permanent_addr(idev, ifp) < 0) {
+		    fixup_permanent_addr(net, idev, ifp) < 0) {
 			write_unlock_bh(&idev->lock);
 			in6_ifa_hold(ifp);
 			ipv6_del_addr(ifp);
@@ -3449,7 +3450,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
 
 		if (event == NETDEV_UP) {
 			/* restore routes for permanent addresses */
-			addrconf_permanent_addr(dev);
+			addrconf_permanent_addr(net, dev);
 
 			if (!addrconf_link_ready(dev)) {
 				/* device is not ready yet. */
@@ -3735,7 +3736,7 @@ restart:
 		spin_unlock_bh(&ifa->lock);
 
 		if (rt)
-			ip6_del_rt(rt);
+			ip6_del_rt(net, rt);
 
 		if (state != INET6_IFADDR_STATE_DEAD) {
 			__ipv6_ifa_notify(RTM_DELADDR, ifa);
@@ -3853,6 +3854,7 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 	struct inet6_dev *idev = ifp->idev;
 	struct net_device *dev = idev->dev;
 	bool bump_id, notify = false;
+	struct net *net;
 
 	addrconf_join_solict(dev, &ifp->addr);
 
@@ -3863,8 +3865,9 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 	if (ifp->state == INET6_IFADDR_STATE_DEAD)
 		goto out;
 
+	net = dev_net(dev);
 	if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
-	    (dev_net(dev)->ipv6.devconf_all->accept_dad < 1 &&
+	    (net->ipv6.devconf_all->accept_dad < 1 &&
 	     idev->cnf.accept_dad < 1) ||
 	    !(ifp->flags&IFA_F_TENTATIVE) ||
 	    ifp->flags & IFA_F_NODAD) {
@@ -3900,8 +3903,8 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 	 * Frames right away
 	 */
 	if (ifp->flags & IFA_F_OPTIMISTIC) {
-		ip6_ins_rt(ifp->rt);
-		if (ipv6_use_optimistic_addr(dev_net(dev), idev)) {
+		ip6_ins_rt(net, ifp->rt);
+		if (ipv6_use_optimistic_addr(net, idev)) {
 			/* Because optimistic nodes can use this address,
 			 * notify listeners. If DAD fails, RTM_DELADDR is sent.
 			 */
@@ -5604,7 +5607,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 		 * to do it again
 		 */
 		if (!rcu_access_pointer(ifp->rt->rt6i_node))
-			ip6_ins_rt(ifp->rt);
+			ip6_ins_rt(net, ifp->rt);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
 		if (!ipv6_addr_any(&ifp->peer_addr))
@@ -5621,11 +5624,11 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 			rt = addrconf_get_prefix_route(&ifp->peer_addr, 128,
 						       ifp->idev->dev, 0, 0);
 			if (rt)
-				ip6_del_rt(rt);
+				ip6_del_rt(net, rt);
 		}
 		if (ifp->rt) {
 			if (dst_hold_safe(&ifp->rt->dst))
-				ip6_del_rt(ifp->rt);
+				ip6_del_rt(net, ifp->rt);
 		}
 		rt_genid_bump_ipv6(net);
 		break;