* xt_u32 - kernel module to match u32 packet content
*
* Original author: Don Cohen <don@isis.cs3-inc.com>
- * © Jan Engelhardt <jengelh@gmx.de>, 2007
+ * (C) CC Computer Consultants GmbH, 2007
+ * Contact: <jengelh@computergmbh.de>
*/
#include <linux/module.h>
at = 0;
pos = ct->location[0].number;
- if (skb->len < 4 || pos > skb->len - 4);
+ if (skb->len < 4 || pos > skb->len - 4)
return false;
ret = skb_copy_bits(skb, pos, &n, sizeof(n));
return true;
}
-static bool u32_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)
+static bool
+u32_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 protoff, bool *hotdrop)
{
const struct xt_u32 *data = matchinfo;
bool ret;
return ret ^ data->invert;
}
-static struct xt_match u32_reg[] __read_mostly = {
+static struct xt_match u32_mt_reg[] __read_mostly = {
{
.name = "u32",
.family = AF_INET,
- .match = u32_match,
+ .match = u32_mt,
.matchsize = sizeof(struct xt_u32),
.me = THIS_MODULE,
},
{
.name = "u32",
.family = AF_INET6,
- .match = u32_match,
+ .match = u32_mt,
.matchsize = sizeof(struct xt_u32),
.me = THIS_MODULE,
},
};
-static int __init xt_u32_init(void)
+static int __init u32_mt_init(void)
{
- return xt_register_matches(u32_reg, ARRAY_SIZE(u32_reg));
+ return xt_register_matches(u32_mt_reg, ARRAY_SIZE(u32_mt_reg));
}
-static void __exit xt_u32_exit(void)
+static void __exit u32_mt_exit(void)
{
- xt_unregister_matches(u32_reg, ARRAY_SIZE(u32_reg));
+ xt_unregister_matches(u32_mt_reg, ARRAY_SIZE(u32_mt_reg));
}
-module_init(xt_u32_init);
-module_exit(xt_u32_exit);
-MODULE_AUTHOR("Jan Engelhardt <jengelh@gmx.de>");
-MODULE_DESCRIPTION("netfilter u32 match module");
+module_init(u32_mt_init);
+module_exit(u32_mt_exit);
+MODULE_AUTHOR("Jan Engelhardt <jengelh@computergmbh.de>");
+MODULE_DESCRIPTION("Xtables: arbitrary byte matching");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_u32");
MODULE_ALIAS("ip6t_u32");