X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Ffib_frontend.c;h=86ff2711fc957977f179da841a0ffc3b698e75ac;hb=7524d7d6de5d5d3f081de8cf5479819fad339661;hp=02b5ff73357fd1b438886d6e84e52646ea9f3c22;hpb=a6db9010922f2c02db2bbea8c17c50e451be38d9;p=linux-2.6

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 02b5ff7335..86ff2711fc 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -53,11 +53,11 @@ static int __net_init fib4_rules_init(struct net *net)
 {
 	struct fib_table *local_table, *main_table;
 
-	local_table = fib_hash_init(RT_TABLE_LOCAL);
+	local_table = fib_hash_table(RT_TABLE_LOCAL);
 	if (local_table == NULL)
 		return -ENOMEM;
 
-	main_table  = fib_hash_init(RT_TABLE_MAIN);
+	main_table  = fib_hash_table(RT_TABLE_MAIN);
 	if (main_table == NULL)
 		goto fail;
 
@@ -83,7 +83,8 @@ struct fib_table *fib_new_table(struct net *net, u32 id)
 	tb = fib_get_table(net, id);
 	if (tb)
 		return tb;
-	tb = fib_hash_init(id);
+
+	tb = fib_hash_table(id);
 	if (!tb)
 		return NULL;
 	h = id & (FIB_TABLE_HASHSZ - 1);
@@ -115,6 +116,21 @@ struct fib_table *fib_get_table(struct net *net, u32 id)
 }
 #endif /* CONFIG_IP_MULTIPLE_TABLES */
 
+void fib_select_default(struct net *net,
+			const struct flowi *flp, struct fib_result *res)
+{
+	struct fib_table *tb;
+	int table = RT_TABLE_MAIN;
+#ifdef CONFIG_IP_MULTIPLE_TABLES
+	if (res->r == NULL || res->r->action != FR_ACT_TO_TBL)
+		return;
+	table = res->r->table;
+#endif
+	tb = fib_get_table(net, table);
+	if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
+		tb->tb_select_default(tb, flp, res);
+}
+
 static void fib_flush(struct net *net)
 {
 	int flushed = 0;
@@ -137,7 +153,7 @@ static void fib_flush(struct net *net)
  *	Find the first device with a given source address.
  */
 
-struct net_device * ip_dev_find(__be32 addr)
+struct net_device * ip_dev_find(struct net *net, __be32 addr)
 {
 	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = addr } } };
 	struct fib_result res;
@@ -148,7 +164,7 @@ struct net_device * ip_dev_find(__be32 addr)
 	res.r = NULL;
 #endif
 
-	local_table = fib_get_table(&init_net, RT_TABLE_LOCAL);
+	local_table = fib_get_table(net, RT_TABLE_LOCAL);
 	if (!local_table || local_table->tb_lookup(local_table, &fl, &res))
 		return NULL;
 	if (res.type != RTN_LOCAL)
@@ -175,7 +191,7 @@ static inline unsigned __inet_dev_addr_type(struct net *net,
 	unsigned ret = RTN_BROADCAST;
 	struct fib_table *local_table;
 
-	if (ipv4_is_zeronet(addr) || ipv4_is_badclass(addr))
+	if (ipv4_is_zeronet(addr) || ipv4_is_lbcast(addr))
 		return RTN_BROADCAST;
 	if (ipv4_is_multicast(addr))
 		return RTN_MULTICAST;
@@ -227,6 +243,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 	struct fib_result res;
 	int no_addr, rpf;
 	int ret;
+	struct net *net;
 
 	no_addr = rpf = 0;
 	rcu_read_lock();
@@ -240,7 +257,8 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 	if (in_dev == NULL)
 		goto e_inval;
 
-	if (fib_lookup(&fl, &res))
+	net = dev->nd_net;
+	if (fib_lookup(net, &fl, &res))
 		goto last_resort;
 	if (res.type != RTN_UNICAST)
 		goto e_inval_res;
@@ -264,7 +282,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 	fl.oif = dev->ifindex;
 
 	ret = 0;
-	if (fib_lookup(&fl, &res) == 0) {
+	if (fib_lookup(net, &fl, &res) == 0) {
 		if (res.type == RTN_UNICAST) {
 			*spec_dst = FIB_RES_PREFSRC(res);
 			ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;
@@ -790,7 +808,7 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 			   First of all, we scan fib_info list searching
 			   for stray nexthop entries, then ignite fib_flush.
 			*/
-			if (fib_sync_down(ifa->ifa_local, NULL, 0))
+			if (fib_sync_down_addr(dev->nd_net, ifa->ifa_local))
 				fib_flush(dev->nd_net);
 		}
 	}
@@ -868,24 +886,19 @@ static int nl_fib_lookup_init(struct net *net)
 				   nl_fib_input, NULL, THIS_MODULE);
 	if (sk == NULL)
 		return -EAFNOSUPPORT;
-	/* Don't hold an extra reference on the namespace */
-	put_net(sk->sk_net);
 	net->ipv4.fibnl = sk;
 	return 0;
 }
 
 static void nl_fib_lookup_exit(struct net *net)
 {
-	/* At the last minute lie and say this is a socket for the
-	 * initial network namespace. So the socket will  be safe to free.
-	 */
-	net->ipv4.fibnl->sk_net = get_net(&init_net);
-	sock_put(net->ipv4.fibnl);
+	netlink_kernel_release(net->ipv4.fibnl);
+	net->ipv4.fibnl = NULL;
 }
 
 static void fib_disable_ip(struct net_device *dev, int force)
 {
-	if (fib_sync_down(0, dev, force))
+	if (fib_sync_down_dev(dev, force))
 		fib_flush(dev->nd_net);
 	rt_cache_flush(0);
 	arp_ifdown(dev);
@@ -962,6 +975,7 @@ static struct notifier_block fib_netdev_notifier = {
 
 static int __net_init ip_fib_net_init(struct net *net)
 {
+	int err;
 	unsigned int i;
 
 	net->ipv4.fib_table_hash = kzalloc(
@@ -972,7 +986,14 @@ static int __net_init ip_fib_net_init(struct net *net)
 	for (i = 0; i < FIB_TABLE_HASHSZ; i++)
 		INIT_HLIST_HEAD(&net->ipv4.fib_table_hash[i]);
 
-	return fib4_rules_init(net);
+	err = fib4_rules_init(net);
+	if (err < 0)
+		goto fail;
+	return 0;
+
+fail:
+	kfree(net->ipv4.fib_table_hash);
+	return err;
 }
 
 static void __net_exit ip_fib_net_exit(struct net *net)
@@ -1042,6 +1063,8 @@ void __init ip_fib_init(void)
 	register_pernet_subsys(&fib_net_ops);
 	register_netdevice_notifier(&fib_netdev_notifier);
 	register_inetaddr_notifier(&fib_inetaddr_notifier);
+
+	fib_hash_init();
 }
 
 EXPORT_SYMBOL(inet_addr_type);