[TCP]: TCP_DEFER_ACCEPT updates - process as established

[linux-2.6] / net / ipv4 / route.c

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index af0b23ad93ba69ccb258b9533ebfd3fef99d42ee..1051326c36b2e18752a4c84e7bca9ffe2cf833e5 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -545,7 +545,7 @@ static int ip_rt_acct_read(char *buffer, char **start, off_t offset,
 }
 #endif
 
-static __init int ip_rt_proc_init(struct net *net)
+static int __net_init ip_rt_do_proc_init(struct net *net)
 {
        struct proc_dir_entry *pde;
 
@@ -576,8 +576,26 @@ err2:
 err1:
        return -ENOMEM;
 }
+
+static void __net_exit ip_rt_do_proc_exit(struct net *net)
+{
+       remove_proc_entry("rt_cache", net->proc_net_stat);
+       remove_proc_entry("rt_cache", net->proc_net);
+       remove_proc_entry("rt_acct", net->proc_net);
+}
+
+static struct pernet_operations ip_rt_proc_ops __net_initdata =  {
+       .init = ip_rt_do_proc_init,
+       .exit = ip_rt_do_proc_exit,
+};
+
+static int __init ip_rt_proc_init(void)
+{
+       return register_pernet_subsys(&ip_rt_proc_ops);
+}
+
 #else
-static inline int ip_rt_proc_init(struct net *net)
+static inline int ip_rt_proc_init(void)
 {
        return 0;
 }
@@ -1271,7 +1289,7 @@ reject_redirect:
 
 static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 {
-       struct rtable *rt = (struct rtable*)dst;
+       struct rtable *rt = (struct rtable *)dst;
        struct dst_entry *ret = dst;
 
        if (rt) {
@@ -1312,7 +1330,7 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 
 void ip_rt_send_redirect(struct sk_buff *skb)
 {
-       struct rtable *rt = (struct rtable*)skb->dst;
+       struct rtable *rt = skb->rtable;
        struct in_device *in_dev = in_dev_get(rt->u.dst.dev);
 
        if (!in_dev)
@@ -1361,7 +1379,7 @@ out:
 
 static int ip_error(struct sk_buff *skb)
 {
-       struct rtable *rt = (struct rtable*)skb->dst;
+       struct rtable *rt = skb->rtable;
        unsigned long now;
        int code;
 
@@ -1530,7 +1548,7 @@ static void ipv4_link_failure(struct sk_buff *skb)
 
        icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
 
-       rt = (struct rtable *) skb->dst;
+       rt = skb->rtable;
        if (rt)
                dst_set_expires(&rt->u.dst, 0);
 }
@@ -1690,7 +1708,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
        in_dev_put(in_dev);
        hash = rt_hash(daddr, saddr, dev->ifindex);
-       return rt_intern_hash(hash, rth, (struct rtable**) &skb->dst);
+       return rt_intern_hash(hash, rth, &skb->rtable);
 
 e_nobufs:
        in_dev_put(in_dev);
@@ -1851,7 +1869,7 @@ static inline int ip_mkroute_input(struct sk_buff *skb,
 
        /* put it into the cache */
        hash = rt_hash(daddr, saddr, fl->iif);
-       return rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
+       return rt_intern_hash(hash, rth, &skb->rtable);
 }
 
 /*
@@ -2007,7 +2025,7 @@ local_input:
        }
        rth->rt_type    = res.type;
        hash = rt_hash(daddr, saddr, fl.iif);
-       err = rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
+       err = rt_intern_hash(hash, rth, &skb->rtable);
        goto done;
 
 no_route:
@@ -2073,7 +2091,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
                        dst_use(&rth->u.dst, jiffies);
                        RT_CACHE_STAT_INC(in_hit);
                        rcu_read_unlock();
-                       skb->dst = (struct dst_entry*)rth;
+                       skb->rtable = rth;
                        return 0;
                }
                RT_CACHE_STAT_INC(in_hlist_search);
@@ -2580,7 +2598,7 @@ int ip_route_output_key(struct net *net, struct rtable **rp, struct flowi *flp)
 static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
                        int nowait, unsigned int flags)
 {
-       struct rtable *rt = (struct rtable*)skb->dst;
+       struct rtable *rt = skb->rtable;
        struct rtmsg *r;
        struct nlmsghdr *nlh;
        long expires;
@@ -2683,9 +2701,6 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
        int err;
        struct sk_buff *skb;
 
-       if (net != &init_net)
-               return -EINVAL;
-
        err = nlmsg_parse(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_ipv4_policy);
        if (err < 0)
                goto errout;
@@ -2715,7 +2730,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
        if (iif) {
                struct net_device *dev;
 
-               dev = __dev_get_by_index(&init_net, iif);
+               dev = __dev_get_by_index(net, iif);
                if (dev == NULL) {
                        err = -ENODEV;
                        goto errout_free;
@@ -2727,7 +2742,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
                err = ip_route_input(skb, dst, src, rtm->rtm_tos, dev);
                local_bh_enable();
 
-               rt = (struct rtable*) skb->dst;
+               rt = skb->rtable;
                if (err == 0 && rt->u.dst.error)
                        err = -rt->u.dst.error;
        } else {
@@ -2741,22 +2756,22 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
                        },
                        .oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0,
                };
-               err = ip_route_output_key(&init_net, &rt, &fl);
+               err = ip_route_output_key(net, &rt, &fl);
        }
 
        if (err)
                goto errout_free;
 
-       skb->dst = &rt->u.dst;
+       skb->rtable = rt;
        if (rtm->rtm_flags & RTM_F_NOTIFY)
                rt->rt_flags |= RTCF_NOTIFY;
 
        err = rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
-                               RTM_NEWROUTE, 0, 0);
+                          RTM_NEWROUTE, 0, 0);
        if (err <= 0)
                goto errout_free;
 
-       err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
+       err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).pid);
 errout:
        return err;
 
@@ -2770,6 +2785,9 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
        struct rtable *rt;
        int h, s_h;
        int idx, s_idx;
+       struct net *net;
+
+       net = skb->sk->sk_net;
 
        s_h = cb->args[0];
        if (s_h < 0)
@@ -2779,7 +2797,7 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
                rcu_read_lock_bh();
                for (rt = rcu_dereference(rt_hash_table[h].chain), idx = 0; rt;
                     rt = rcu_dereference(rt->u.dst.rt_next), idx++) {
-                       if (idx < s_idx)
+                       if (rt->u.dst.dev->nd_net != net || idx < s_idx)
                                continue;
                        if (rt->rt_genid != atomic_read(&rt_genid))
                                continue;
@@ -3055,7 +3073,7 @@ int __init ip_rt_init(void)
                ip_rt_secret_interval;
        add_timer(&rt_secret_timer);
 
-       if (ip_rt_proc_init(&init_net))
+       if (ip_rt_proc_init())
                printk(KERN_ERR "Unable to create route proc files\n");
 #ifdef CONFIG_XFRM
        xfrm_init();