[IPV6]: ROUTE: Add router_probe_interval sysctl.

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

1 files changed, 12 insertions, 0 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 51edba5fea26..e7add61e6e39 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -169,6 +169,7 @@ struct ipv6_devconf ipv6_devconf = {
         .accept_ra_pinfo        = 1,
 #ifdef CONFIG_IPV6_ROUTER_PREF
         .accept_ra_rtr_pref     = 1,
+        .rtr_probe_interval     = 60 * HZ,
 #endif
 };
 
@@ -195,6 +196,7 @@ static struct ipv6_devconf ipv6_devconf_dflt = {
         .accept_ra_pinfo        = 1,
 #ifdef CONFIG_IPV6_ROUTER_PREF
         .accept_ra_rtr_pref     = 1,
+        .rtr_probe_interval     = 60 * HZ,
 #endif
 };
 
@@ -3130,6 +3132,7 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf,
         array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
 #ifdef CONFIG_IPV6_ROUTER_PREF
         array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
+        array[DEVCONF_RTR_PROBE_INTERVAL] = cnf->rtr_probe_interval;
 #endif
 }
 
@@ -3608,6 +3611,15 @@ static struct addrconf_sysctl_table
                         .mode           =       0644,
                         .proc_handler   =       &proc_dointvec,
                 },
+                {
+                        .ctl_name       =       NET_IPV6_RTR_PROBE_INTERVAL,
+                        .procname       =       "router_probe_interval",
+                        .data           =       &ipv6_devconf.rtr_probe_interval,
+                        .maxlen         =       sizeof(int),
+                        .mode           =       0644,
+                        .proc_handler   =       &proc_dointvec_jiffies,
+                        .strategy       =       &sysctl_jiffies,
+                },
 #endif
                 {
                         .ctl_name       =       0,      /* sentinel */