[PATCH] do_notify_parent_cldstop() cleanup

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

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 563e7d61270612b64a5f67684c5eea1662b66a31..4e1379f712696e82be169fd4b69dde6456cee855 100644 (file)
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -516,6 +516,59 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 #undef BRD1_OK
 }
 
+static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb )
+{
+       
+       struct fib_result       res;
+       struct flowi            fl = { .nl_u = { .ip4_u = { .daddr = frn->fl_addr, 
+                                                           .fwmark = frn->fl_fwmark,
+                                                           .tos = frn->fl_tos,
+                                                           .scope = frn->fl_scope } } };
+       if (tb) {
+               local_bh_disable();
+
+               frn->tb_id = tb->tb_id;
+               frn->err = tb->tb_lookup(tb, &fl, &res);
+
+               if (!frn->err) {
+                       frn->prefixlen = res.prefixlen;
+                       frn->nh_sel = res.nh_sel;
+                       frn->type = res.type;
+                       frn->scope = res.scope;
+               }
+               local_bh_enable();
+       }
+}
+
+static void nl_fib_input(struct sock *sk, int len)
+{
+       struct sk_buff *skb = NULL;
+        struct nlmsghdr *nlh = NULL;
+       struct fib_result_nl *frn;
+       int err;
+       u32 pid;     
+       struct fib_table *tb;
+       
+       skb = skb_recv_datagram(sk, 0, 0, &err);
+       nlh = (struct nlmsghdr *)skb->data;
+       
+       frn = (struct fib_result_nl *) NLMSG_DATA(nlh);
+       tb = fib_get_table(frn->tb_id_in);
+
+       nl_fib_lookup(frn, tb);
+       
+       pid = nlh->nlmsg_pid;           /*pid of sending process */
+       NETLINK_CB(skb).pid = 0;         /* from kernel */
+       NETLINK_CB(skb).dst_pid = pid;
+       NETLINK_CB(skb).dst_group = 0;  /* unicast */
+       netlink_unicast(sk, skb, pid, MSG_DONTWAIT);
+}    
+
+static void nl_fib_lookup_init(void)
+{
+      netlink_kernel_create(NETLINK_FIB_LOOKUP, 0, nl_fib_input, THIS_MODULE);
+}
+
 static void fib_disable_ip(struct net_device *dev, int force)
 {
        if (fib_sync_down(0, dev, force))
@@ -604,8 +657,8 @@ void __init ip_fib_init(void)
 
        register_netdevice_notifier(&fib_netdev_notifier);
        register_inetaddr_notifier(&fib_inetaddr_notifier);
+       nl_fib_lookup_init();
 }
 
 EXPORT_SYMBOL(inet_addr_type);
-EXPORT_SYMBOL(ip_dev_find);
 EXPORT_SYMBOL(ip_rt_ioctl);