* 2 of the License, or (at your option) any later version.
*/
+#include <linux/config.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/icmpv6.h>
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
- const struct xt_target *target,
const void *targinfo,
void *userinfo)
{
static int check(const char *tablename,
const void *entry,
- const struct xt_target *target,
void *targinfo,
unsigned int targinfosize,
unsigned int hook_mask)
const struct ip6t_reject_info *rejinfo = targinfo;
const struct ip6t_entry *e = entry;
+ if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_reject_info))) {
+ DEBUGP("ip6t_REJECT: targinfosize %u != 0\n", targinfosize);
+ return 0;
+ }
+
+ /* Only allow these for packet filtering. */
+ if (strcmp(tablename, "filter") != 0) {
+ DEBUGP("ip6t_REJECT: bad table `%s'.\n", tablename);
+ return 0;
+ }
+
+ if ((hook_mask & ~((1 << NF_IP6_LOCAL_IN)
+ | (1 << NF_IP6_FORWARD)
+ | (1 << NF_IP6_LOCAL_OUT))) != 0) {
+ DEBUGP("ip6t_REJECT: bad hook mask %X\n", hook_mask);
+ return 0;
+ }
+
if (rejinfo->with == IP6T_ICMP6_ECHOREPLY) {
printk("ip6t_REJECT: ECHOREPLY is not supported.\n");
return 0;
return 0;
}
}
+
return 1;
}
static struct ip6t_target ip6t_reject_reg = {
.name = "REJECT",
.target = reject6_target,
- .targetsize = sizeof(struct ip6t_reject_info),
- .table = "filter",
- .hooks = (1 << NF_IP6_LOCAL_IN) | (1 << NF_IP6_FORWARD) |
- (1 << NF_IP6_LOCAL_OUT),
.checkentry = check,
.me = THIS_MODULE
};
-static int __init ip6t_reject_init(void)
+static int __init init(void)
{
if (ip6t_register_target(&ip6t_reject_reg))
return -EINVAL;
return 0;
}
-static void __exit ip6t_reject_fini(void)
+static void __exit fini(void)
{
ip6t_unregister_target(&ip6t_reject_reg);
}
-module_init(ip6t_reject_init);
-module_exit(ip6t_reject_fini);
+module_init(init);
+module_exit(fini);