diff options
| -rw-r--r-- | include/net/netns/ipv4.h | 2 | ||||
| -rw-r--r-- | net/ipv4/route.c | 40 |
2 files changed, 32 insertions, 10 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index a29adf1ba0f..356617f81be 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -46,5 +46,7 @@ struct netns_ipv4 { int sysctl_icmp_ratelimit; int sysctl_icmp_ratemask; int sysctl_icmp_errors_use_inbound_ifaddr; + + struct timer_list rt_secret_timer; }; #endif diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 6fe799de9b9..f99d9dbb772 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -132,7 +132,6 @@ static int ip_rt_secret_interval __read_mostly = 10 * 60 * HZ; static void rt_worker_func(struct work_struct *work); static DECLARE_DELAYED_WORK(expires_work, rt_worker_func); -static struct timer_list rt_secret_timer; /* * Interface to generic destination cache. @@ -801,10 +800,11 @@ void rt_cache_flush(struct net *net, int delay) /* * We change rt_genid and let gc do the cleanup */ -static void rt_secret_rebuild(unsigned long dummy) +static void rt_secret_rebuild(unsigned long __net) { + struct net *net = (struct net *)__net; rt_cache_invalidate(); - mod_timer(&rt_secret_timer, jiffies + ip_rt_secret_interval); + mod_timer(&net->ipv4.rt_secret_timer, jiffies + ip_rt_secret_interval); } /* @@ -3072,6 +3072,31 @@ static __net_initdata struct pernet_operations sysctl_route_ops = { }; #endif + +static __net_init int rt_secret_timer_init(struct net *net) +{ + net->ipv4.rt_secret_timer.function = rt_secret_rebuild; + net->ipv4.rt_secret_timer.data = (unsigned long)net; + init_timer_deferrable(&net->ipv4.rt_secret_timer); + + net->ipv4.rt_secret_timer.expires = + jiffies + net_random() % ip_rt_secret_interval + + ip_rt_secret_interval; + add_timer(&net->ipv4.rt_secret_timer); + return 0; +} + +static __net_exit void rt_secret_timer_exit(struct net *net) +{ + del_timer_sync(&net->ipv4.rt_secret_timer); +} + +static __net_initdata struct pernet_operations rt_secret_timer_ops = { + .init = rt_secret_timer_init, + .exit = rt_secret_timer_exit, +}; + + #ifdef CONFIG_NET_CLS_ROUTE struct ip_rt_acct *ip_rt_acct __read_mostly; #endif /* CONFIG_NET_CLS_ROUTE */ @@ -3124,19 +3149,14 @@ int __init ip_rt_init(void) devinet_init(); ip_fib_init(); - rt_secret_timer.function = rt_secret_rebuild; - rt_secret_timer.data = 0; - init_timer_deferrable(&rt_secret_timer); - /* All the timers, started at system startup tend to synchronize. Perturb it a bit. */ schedule_delayed_work(&expires_work, net_random() % ip_rt_gc_interval + ip_rt_gc_interval); - rt_secret_timer.expires = jiffies + net_random() % ip_rt_secret_interval + - ip_rt_secret_interval; - add_timer(&rt_secret_timer); + if (register_pernet_subsys(&rt_secret_timer_ops)) + printk(KERN_ERR "Unable to setup rt_secret_timer\n"); if (ip_rt_proc_init()) printk(KERN_ERR "Unable to create route proc files\n"); |