module: simplify load_module.

[linux-2.6-omap-h63xx.git] / net / bridge / netfilter / ebt_dnat.c

diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index ca64c1cc1b47a1f29d88e5e31f1e04e686ee9895..6b49ea9e31fb04f5852499f575a14f10750bf876 100644 (file)
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -7,18 +7,17 @@
  *  June, 2002
  *
  */
-
+#include <linux/module.h>
+#include <net/sock.h>
 #include <linux/netfilter.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
-#include <linux/module.h>
-#include <net/sock.h>
 
-static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_dnat_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-       const struct ebt_nat_info *info = data;
+       const struct ebt_nat_info *info = par->targinfo;
 
        if (!skb_make_writable(skb, 0))
                return EBT_DROP;
@@ -27,40 +26,46 @@ static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
        return info->target;
 }
 
-static int ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool ebt_dnat_tg_check(const struct xt_tgchk_param *par)
 {
-       const struct ebt_nat_info *info = data;
+       const struct ebt_nat_info *info = par->targinfo;
+       unsigned int hook_mask;
 
        if (BASE_CHAIN && info->target == EBT_RETURN)
-               return -EINVAL;
-       CLEAR_BASE_CHAIN_BIT;
-       if ( (strcmp(tablename, "nat") ||
-          (hookmask & ~((1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_LOCAL_OUT)))) &&
-          (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
-               return -EINVAL;
-       if (datalen != EBT_ALIGN(sizeof(struct ebt_nat_info)))
-               return -EINVAL;
+               return false;
+
+       hook_mask = par->hook_mask & ~(1 << NF_BR_NUMHOOKS);
+       if ((strcmp(par->table, "nat") != 0 ||
+           (hook_mask & ~((1 << NF_BR_PRE_ROUTING) |
+           (1 << NF_BR_LOCAL_OUT)))) &&
+           (strcmp(par->table, "broute") != 0 ||
+           hook_mask & ~(1 << NF_BR_BROUTING)))
+               return false;
        if (INVALID_TARGET)
-               return -EINVAL;
-       return 0;
+               return false;
+       return true;
 }
 
-static struct ebt_target dnat __read_mostly = {
-       .name           = EBT_DNAT_TARGET,
-       .target         = ebt_target_dnat,
-       .check          = ebt_target_dnat_check,
+static struct xt_target ebt_dnat_tg_reg __read_mostly = {
+       .name           = "dnat",
+       .revision       = 0,
+       .family         = NFPROTO_BRIDGE,
+       .hooks          = (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING) |
+                         (1 << NF_BR_LOCAL_OUT) | (1 << NF_BR_BROUTING),
+       .target         = ebt_dnat_tg,
+       .checkentry     = ebt_dnat_tg_check,
+       .targetsize     = XT_ALIGN(sizeof(struct ebt_nat_info)),
        .me             = THIS_MODULE,
 };
 
 static int __init ebt_dnat_init(void)
 {
-       return ebt_register_target(&dnat);
+       return xt_register_target(&ebt_dnat_tg_reg);
 }
 
 static void __exit ebt_dnat_fini(void)
 {
-       ebt_unregister_target(&dnat);
+       xt_unregister_target(&ebt_dnat_tg_reg);
 }
 
 module_init(ebt_dnat_init);