#include <linux/netfilter_ipv6/ip6t_frag.h>
MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("IPv6 FRAG match");
+MODULE_DESCRIPTION("Xtables: IPv6 fragment match");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
/* Returns 1 if the id is matched by the range, 0 otherwise */
}
static bool
-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 protoff,
- bool *hotdrop)
+frag_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
{
struct frag_hdr _frag;
const struct frag_hdr *fh;
- const struct ip6t_frag *fraginfo = matchinfo;
+ const struct ip6t_frag *fraginfo = par->matchinfo;
unsigned int ptr;
int err;
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL);
if (err < 0) {
if (err != -ENOENT)
- *hotdrop = true;
+ *par->hotdrop = true;
return false;
}
fh = skb_header_pointer(skb, ptr, sizeof(_frag), &_frag);
if (fh == NULL) {
- *hotdrop = true;
+ *par->hotdrop = true;
return false;
}
&& (ntohs(fh->frag_off) & IP6_MF));
}
-/* Called when user tries to insert an entry of this type. */
-static bool
-checkentry(const char *tablename,
- const void *ip,
- const struct xt_match *match,
- void *matchinfo,
- unsigned int hook_mask)
+static bool frag_mt6_check(const struct xt_mtchk_param *par)
{
- const struct ip6t_frag *fraginfo = matchinfo;
+ const struct ip6t_frag *fraginfo = par->matchinfo;
if (fraginfo->invflags & ~IP6T_FRAG_INV_MASK) {
pr_debug("ip6t_frag: unknown flags %X\n", fraginfo->invflags);
return true;
}
-static struct xt_match frag_match __read_mostly = {
+static struct xt_match frag_mt6_reg __read_mostly = {
.name = "frag",
- .family = AF_INET6,
- .match = match,
+ .family = NFPROTO_IPV6,
+ .match = frag_mt6,
.matchsize = sizeof(struct ip6t_frag),
- .checkentry = checkentry,
+ .checkentry = frag_mt6_check,
.me = THIS_MODULE,
};
-static int __init ip6t_frag_init(void)
+static int __init frag_mt6_init(void)
{
- return xt_register_match(&frag_match);
+ return xt_register_match(&frag_mt6_reg);
}
-static void __exit ip6t_frag_fini(void)
+static void __exit frag_mt6_exit(void)
{
- xt_unregister_match(&frag_match);
+ xt_unregister_match(&frag_mt6_reg);
}
-module_init(ip6t_frag_init);
-module_exit(ip6t_frag_fini);
+module_init(frag_mt6_init);
+module_exit(frag_mt6_exit);