[IPV6]: Disallow RH0 by default.

A security issue is emerging.  Disallow Routing Header Type 0 by default
as we have been doing for IPv4.
Note: We allow RH2 by default because it is harmless.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index f8241130f5ea..713eb5eaa81f 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -177,6 +177,7 @@ struct ipv6_devconf {
 #endif
 #endif
         __s32           proxy_ndp;
+        __s32           accept_source_route;
         void            *sysctl;
 };
 
@@ -205,6 +206,8 @@ enum {
         DEVCONF_RTR_PROBE_INTERVAL,
         DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN,
         DEVCONF_PROXY_NDP,
+        __DEVCONF_OPTIMISTIC_DAD,
+        DEVCONF_ACCEPT_SOURCE_ROUTE,
         DEVCONF_MAX
 };