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,
int *hotdrop)
{
- const struct xt_dccp_info *info =
- (const struct xt_dccp_info *)matchinfo;
+ const struct xt_dccp_info *info = matchinfo;
struct dccp_hdr _dh, *dh;
if (offset)
static int
checkentry(const char *tablename,
const void *inf,
+ const struct xt_match *match,
void *matchinfo,
- unsigned int matchsize,
unsigned int hook_mask)
{
- const struct ipt_ip *ip = inf;
- const struct xt_dccp_info *info;
+ const struct xt_dccp_info *info = matchinfo;
- info = (const struct xt_dccp_info *)matchinfo;
-
- return ip->proto == IPPROTO_DCCP
- && !(ip->invflags & XT_INV_PROTO)
- && matchsize == XT_ALIGN(sizeof(struct xt_dccp_info))
- && !(info->flags & ~XT_DCCP_VALID_FLAGS)
- && !(info->invflags & ~XT_DCCP_VALID_FLAGS)
- && !(info->invflags & ~info->flags);
-}
-
-static int
-checkentry6(const char *tablename,
- const void *inf,
- void *matchinfo,
- unsigned int matchsize,
- unsigned int hook_mask)
-{
- const struct ip6t_ip6 *ip = inf;
- const struct xt_dccp_info *info;
-
- info = (const struct xt_dccp_info *)matchinfo;
-
- return ip->proto == IPPROTO_DCCP
- && !(ip->invflags & XT_INV_PROTO)
- && matchsize == XT_ALIGN(sizeof(struct xt_dccp_info))
- && !(info->flags & ~XT_DCCP_VALID_FLAGS)
+ return !(info->flags & ~XT_DCCP_VALID_FLAGS)
&& !(info->invflags & ~XT_DCCP_VALID_FLAGS)
&& !(info->invflags & ~info->flags);
}
-
-static struct xt_match dccp_match =
-{
- .name = "dccp",
- .match = &match,
- .checkentry = &checkentry,
- .me = THIS_MODULE,
-};
-static struct xt_match dccp6_match =
-{
- .name = "dccp",
- .match = &match,
- .checkentry = &checkentry6,
- .me = THIS_MODULE,
+static struct xt_match xt_dccp_match[] = {
+ {
+ .name = "dccp",
+ .family = AF_INET,
+ .checkentry = checkentry,
+ .match = match,
+ .matchsize = sizeof(struct xt_dccp_info),
+ .proto = IPPROTO_DCCP,
+ .me = THIS_MODULE,
+ },
+ {
+ .name = "dccp",
+ .family = AF_INET6,
+ .checkentry = checkentry,
+ .match = match,
+ .matchsize = sizeof(struct xt_dccp_info),
+ .proto = IPPROTO_DCCP,
+ .me = THIS_MODULE,
+ },
};
-
-static int __init init(void)
+static int __init xt_dccp_init(void)
{
int ret;
dccp_optbuf = kmalloc(256 * 4, GFP_KERNEL);
if (!dccp_optbuf)
return -ENOMEM;
- ret = xt_register_match(AF_INET, &dccp_match);
+ ret = xt_register_matches(xt_dccp_match, ARRAY_SIZE(xt_dccp_match));
if (ret)
goto out_kfree;
- ret = xt_register_match(AF_INET6, &dccp6_match);
- if (ret)
- goto out_unreg;
-
return ret;
-out_unreg:
- xt_unregister_match(AF_INET, &dccp_match);
out_kfree:
kfree(dccp_optbuf);
-
return ret;
}
-static void __exit fini(void)
+static void __exit xt_dccp_fini(void)
{
- xt_unregister_match(AF_INET6, &dccp6_match);
- xt_unregister_match(AF_INET, &dccp_match);
+ xt_unregister_matches(xt_dccp_match, ARRAY_SIZE(xt_dccp_match));
kfree(dccp_optbuf);
}
-module_init(init);
-module_exit(fini);
+module_init(xt_dccp_init);
+module_exit(xt_dccp_fini);