diff options
Diffstat (limited to 'net/ipv4/netfilter/ipt_iprange.c')
-rw-r--r-- | net/ipv4/netfilter/ipt_iprange.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/net/ipv4/netfilter/ipt_iprange.c b/net/ipv4/netfilter/ipt_iprange.c deleted file mode 100644 index 0106dc955a69..000000000000 --- a/net/ipv4/netfilter/ipt_iprange.c +++ /dev/null @@ -1,79 +0,0 @@ -/* - * iptables module to match IP address ranges - * - * (C) 2003 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/module.h> -#include <linux/skbuff.h> -#include <linux/ip.h> -#include <linux/netfilter/x_tables.h> -#include <linux/netfilter_ipv4/ipt_iprange.h> - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); -MODULE_DESCRIPTION("iptables arbitrary IP range match module"); - -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) -{ - const struct ipt_iprange_info *info = 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 %u.%u.%u.%u NOT in range %s" - "%u.%u.%u.%u-%u.%u.%u.%u\n", - NIPQUAD(iph->saddr), - info->flags & IPRANGE_SRC_INV ? "(INV) " : "", - NIPQUAD(info->src.min_ip), - NIPQUAD(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 %u.%u.%u.%u NOT in range %s" - "%u.%u.%u.%u-%u.%u.%u.%u\n", - NIPQUAD(iph->daddr), - info->flags & IPRANGE_DST_INV ? "(INV) " : "", - NIPQUAD(info->dst.min_ip), - NIPQUAD(info->dst.max_ip)); - return false; - } - } - return true; -} - -static struct xt_match iprange_match __read_mostly = { - .name = "iprange", - .family = AF_INET, - .match = match, - .matchsize = sizeof(struct ipt_iprange_info), - .me = THIS_MODULE -}; - -static int __init ipt_iprange_init(void) -{ - return xt_register_match(&iprange_match); -} - -static void __exit ipt_iprange_fini(void) -{ - xt_unregister_match(&iprange_match); -} - -module_init(ipt_iprange_init); -module_exit(ipt_iprange_fini); |