netconf: advertise mc_forwarding status

This patch advertise the MC_FORWARDING status for IPv4 and IPv6.
This field is readonly, only multicast engine in the kernel updates it.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index d032780d0ce5..a9d828976a77 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -171,6 +171,9 @@ struct in_ifaddr {
 extern int register_inetaddr_notifier(struct notifier_block *nb);
 extern int unregister_inetaddr_notifier(struct notifier_block *nb);
 
+extern void inet_netconf_notify_devconf(struct net *net, int type, int ifindex,
+                                        struct ipv4_devconf *devconf);
+
 extern struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref);
 static inline struct net_device *ip_dev_find(struct net *net, __be32 addr)
 {
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 9e63e76b20e7..df4ef9453384 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -172,6 +172,9 @@ extern bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
 extern int register_inet6addr_notifier(struct notifier_block *nb);
 extern int unregister_inet6addr_notifier(struct notifier_block *nb);
 
+extern void inet6_netconf_notify_devconf(struct net *net, int type, int ifindex,
+                                         struct ipv6_devconf *devconf);
+
 /**
  * __in6_dev_get - get inet6_dev pointer from netdevice
  * @dev: network device
diff --git a/include/uapi/linux/netconf.h b/include/uapi/linux/netconf.h
index 75dcbc587fb5..64804a798b0c 100644
--- a/include/uapi/linux/netconf.h
+++ b/include/uapi/linux/netconf.h
@@ -13,6 +13,7 @@ enum {
         NETCONFA_IFINDEX,
         NETCONFA_FORWARDING,
         NETCONFA_RP_FILTER,
+        NETCONFA_MC_FORWARDING,
         __NETCONFA_MAX
 };
 #define NETCONFA_MAX    (__NETCONFA_MAX - 1)