[IPV6] NDISC: Add proxy_ndp sysctl.

We do not always need proxy NDP functionality even we
enable forwarding.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 1d6d3ccc9413..caca57df0d7d 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -176,6 +176,7 @@ struct ipv6_devconf {
         __s32           accept_ra_rt_info_max_plen;
 #endif
 #endif
+        __s32           proxy_ndp;
         void            *sysctl;
 };
 
@@ -203,6 +204,7 @@ enum {
         DEVCONF_ACCEPT_RA_RTR_PREF,
         DEVCONF_RTR_PROBE_INTERVAL,
         DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN,
+        DEVCONF_PROXY_NDP,
         DEVCONF_MAX
 };