netconf: advertise mc_forwarding status

[~andy/linux] / net / ipv6 / ip6mr.c

diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 926ea544f499e93c895b42e9677d316f7cff481d..1c05fe604d37049029b4c8ddfb4c5ef4aa0f4ab6 100644 (file)
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -52,6 +52,7 @@
 #include <linux/netfilter_ipv6.h>
 #include <linux/export.h>
 #include <net/ip6_checksum.h>
+#include <linux/netconf.h>
 
 struct mr6_table {
        struct list_head        list;
@@ -805,8 +806,12 @@ static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
        dev_set_allmulti(dev, -1);
 
        in6_dev = __in6_dev_get(dev);
-       if (in6_dev)
+       if (in6_dev) {
                in6_dev->cnf.mc_forwarding--;
+               inet6_netconf_notify_devconf(dev_net(dev),
+                                            NETCONFA_MC_FORWARDING,
+                                            dev->ifindex, &in6_dev->cnf);
+       }
 
        if (v->flags & MIFF_REGISTER)
                unregister_netdevice_queue(dev, head);
@@ -958,8 +963,12 @@ static int mif6_add(struct net *net, struct mr6_table *mrt,
        }
 
        in6_dev = __in6_dev_get(dev);
-       if (in6_dev)
+       if (in6_dev) {
                in6_dev->cnf.mc_forwarding++;
+               inet6_netconf_notify_devconf(dev_net(dev),
+                                            NETCONFA_MC_FORWARDING,
+                                            dev->ifindex, &in6_dev->cnf);
+       }
 
        /*
         *      Fill in the VIF structures
@@ -1513,6 +1522,9 @@ static int ip6mr_sk_init(struct mr6_table *mrt, struct sock *sk)
        if (likely(mrt->mroute6_sk == NULL)) {
                mrt->mroute6_sk = sk;
                net->ipv6.devconf_all->mc_forwarding++;
+               inet6_netconf_notify_devconf(net, NETCONFA_MC_FORWARDING,
+                                            NETCONFA_IFINDEX_ALL,
+                                            net->ipv6.devconf_all);
        }
        else
                err = -EADDRINUSE;
@@ -1535,6 +1547,10 @@ int ip6mr_sk_done(struct sock *sk)
                        write_lock_bh(&mrt_lock);
                        mrt->mroute6_sk = NULL;
                        net->ipv6.devconf_all->mc_forwarding--;
+                       inet6_netconf_notify_devconf(net,
+                                                    NETCONFA_MC_FORWARDING,
+                                                    NETCONFA_IFINDEX_ALL,
+                                                    net->ipv6.devconf_all);
                        write_unlock_bh(&mrt_lock);
 
                        mroute_clean_tables(mrt);