linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / net / ipv4 / netfilter / ipt_DSCP.c

diff --git a/net/ipv4/netfilter/ipt_DSCP.c b/net/ipv4/netfilter/ipt_DSCP.c
index c8e9712..898cdf7 100644 (file)
--- a/net/ipv4/netfilter/ipt_DSCP.c
+++ b/net/ipv4/netfilter/ipt_DSCP.c
@@ -29,7 +29,6 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
-       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -59,38 +58,48 @@ target(struct sk_buff **pskb,
 static int
 checkentry(const char *tablename,
           const void *e_void,
-          const struct xt_target *target,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
        const u_int8_t dscp = ((struct ipt_DSCP_info *)targinfo)->dscp;
 
+       if (targinfosize != IPT_ALIGN(sizeof(struct ipt_DSCP_info))) {
+               printk(KERN_WARNING "DSCP: targinfosize %u != %Zu\n",
+                      targinfosize,
+                      IPT_ALIGN(sizeof(struct ipt_DSCP_info)));
+               return 0;
+       }
+
+       if (strcmp(tablename, "mangle") != 0) {
+               printk(KERN_WARNING "DSCP: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
+               return 0;
+       }
+
        if ((dscp > IPT_DSCP_MAX)) {
                printk(KERN_WARNING "DSCP: dscp %x out of range\n", dscp);
                return 0;
        }
+
        return 1;
 }
 
 static struct ipt_target ipt_dscp_reg = {
        .name           = "DSCP",
        .target         = target,
-       .targetsize     = sizeof(struct ipt_DSCP_info),
-       .table          = "mangle",
        .checkentry     = checkentry,
        .me             = THIS_MODULE,
 };
 
-static int __init ipt_dscp_init(void)
+static int __init init(void)
 {
        return ipt_register_target(&ipt_dscp_reg);
 }
 
-static void __exit ipt_dscp_fini(void)
+static void __exit fini(void)
 {
        ipt_unregister_target(&ipt_dscp_reg);
 }
 
-module_init(ipt_dscp_init);
-module_exit(ipt_dscp_fini);
+module_init(init);
+module_exit(fini);