#include <linux/netfilter/xt_comment.h>
MODULE_AUTHOR("Brad Fisher <brad@info-link.net>");
-MODULE_DESCRIPTION("iptables comment match module");
+MODULE_DESCRIPTION("Xtables: No-op match which can be tagged with a comment");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_comment");
MODULE_ALIAS("ip6t_comment");
-static int
-match(const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct xt_match *match,
- const void *matchinfo,
- int offset,
- unsigned int protooff,
- int *hotdrop)
+static bool
+comment_mt(const struct sk_buff *skb, const struct net_device *in,
+ const struct net_device *out, const struct xt_match *match,
+ const void *matchinfo, int offset, unsigned int protooff,
+ bool *hotdrop)
{
/* We always match */
- return 1;
+ return true;
}
-static struct xt_match comment_match = {
- .name = "comment",
- .match = match,
- .matchsize = sizeof(struct xt_comment_info),
- .family = AF_INET,
- .me = THIS_MODULE
+static struct xt_match comment_mt_reg[] __read_mostly = {
+ {
+ .name = "comment",
+ .family = AF_INET,
+ .match = comment_mt,
+ .matchsize = sizeof(struct xt_comment_info),
+ .me = THIS_MODULE
+ },
+ {
+ .name = "comment",
+ .family = AF_INET6,
+ .match = comment_mt,
+ .matchsize = sizeof(struct xt_comment_info),
+ .me = THIS_MODULE
+ },
};
-static struct xt_match comment6_match = {
- .name = "comment",
- .match = match,
- .matchsize = sizeof(struct xt_comment_info),
- .family = AF_INET6,
- .me = THIS_MODULE
-};
-
-static int __init xt_comment_init(void)
+static int __init comment_mt_init(void)
{
- int ret;
-
- ret = xt_register_match(&comment_match);
- if (ret)
- return ret;
-
- ret = xt_register_match(&comment6_match);
- if (ret)
- xt_unregister_match(&comment_match);
-
- return ret;
+ return xt_register_matches(comment_mt_reg, ARRAY_SIZE(comment_mt_reg));
}
-static void __exit xt_comment_fini(void)
+static void __exit comment_mt_exit(void)
{
- xt_unregister_match(&comment_match);
- xt_unregister_match(&comment6_match);
+ xt_unregister_matches(comment_mt_reg, ARRAY_SIZE(comment_mt_reg));
}
-module_init(xt_comment_init);
-module_exit(xt_comment_fini);
+module_init(comment_mt_init);
+module_exit(comment_mt_exit);