[IPV6]: ROUTE: Add accept_ra_defrtr sysctl.

This controls whether we accept default router information
in RAs.

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

2 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 9c8f4c9ed42..c5131a02869 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -145,6 +145,7 @@ struct ipv6_devconf {
         __s32           max_desync_factor;
 #endif
         __s32           max_addresses;
+        __s32           accept_ra_defrtr;
         void            *sysctl;
 };
 
@@ -167,6 +168,7 @@ enum {
         DEVCONF_MAX_DESYNC_FACTOR,
         DEVCONF_MAX_ADDRESSES,
         DEVCONF_FORCE_MLD_VERSION,
+        DEVCONF_ACCEPT_RA_DEFRTR,
         DEVCONF_MAX
 };
 
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index bac61db2645..0f494137d03 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -531,6 +531,7 @@ enum {
         NET_IPV6_MAX_DESYNC_FACTOR=15,
         NET_IPV6_MAX_ADDRESSES=16,
         NET_IPV6_FORCE_MLD_VERSION=17,
+        NET_IPV6_ACCEPT_RA_DEFRTR=18,
         __NET_IPV6_MAX
 };