- "forwarding" header files like ipt_mac.h in
include/linux/netfilter_ipv4/ and include/linux/netfilter_ipv6/
- - xt_iprange match revision 0,
- include/linux/netfilter_ipv4/ipt_iprange.h
- (superseded by xt_iprange match revision 1)
-
- xt_mark match revision 0
(superseded by xt_mark match revision 1)
#include <linux/ipv6.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_iprange.h>
-#include <linux/netfilter_ipv4/ipt_iprange.h>
-
-static bool
-iprange_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
-{
- const struct ipt_iprange_info *info = par->matchinfo;
- const struct iphdr *iph = ip_hdr(skb);
-
- if (info->flags & IPRANGE_SRC) {
- if ((ntohl(iph->saddr) < ntohl(info->src.min_ip)
- || ntohl(iph->saddr) > ntohl(info->src.max_ip))
- ^ !!(info->flags & IPRANGE_SRC_INV)) {
- pr_debug("src IP %pI4 NOT in range %s%pI4-%pI4\n",
- &iph->saddr,
- info->flags & IPRANGE_SRC_INV ? "(INV) " : "",
- &info->src.min_ip,
- &info->src.max_ip);
- return false;
- }
- }
- if (info->flags & IPRANGE_DST) {
- if ((ntohl(iph->daddr) < ntohl(info->dst.min_ip)
- || ntohl(iph->daddr) > ntohl(info->dst.max_ip))
- ^ !!(info->flags & IPRANGE_DST_INV)) {
- pr_debug("dst IP %pI4 NOT in range %s%pI4-%pI4\n",
- &iph->daddr,
- info->flags & IPRANGE_DST_INV ? "(INV) " : "",
- &info->dst.min_ip,
- &info->dst.max_ip);
- return false;
- }
- }
- return true;
-}
static bool
iprange_mt4(const struct sk_buff *skb, const struct xt_match_param *par)
}
static struct xt_match iprange_mt_reg[] __read_mostly = {
- {
- .name = "iprange",
- .revision = 0,
- .family = NFPROTO_IPV4,
- .match = iprange_mt_v0,
- .matchsize = sizeof(struct ipt_iprange_info),
- .me = THIS_MODULE,
- },
{
.name = "iprange",
.revision = 1,
module_init(iprange_mt_init);
module_exit(iprange_mt_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>, Jan Engelhardt <jengelh@computergmbh.de>");
+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
+MODULE_AUTHOR("Jan Engelhardt <jengelh@medozas.de>");
MODULE_DESCRIPTION("Xtables: arbitrary IPv4 range matching");
MODULE_ALIAS("ipt_iprange");
MODULE_ALIAS("ip6t_iprange");