X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Fnetfilter%2Fipt_iprange.c;h=0106dc955a69900ba8593bb9b8ee517c71562983;hb=a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d;hp=ae70112f5e06ac888ee69f86bf9eae7f81ba43fa;hpb=5501972e0b5857bc8354770d900ceb9b40c7f6b7;p=linux-2.6-omap-h63xx.git diff --git a/net/ipv4/netfilter/ipt_iprange.c b/net/ipv4/netfilter/ipt_iprange.c index ae70112f5e0..0106dc955a6 100644 --- a/net/ipv4/netfilter/ipt_iprange.c +++ b/net/ipv4/netfilter/ipt_iprange.c @@ -10,76 +10,70 @@ #include #include #include -#include +#include #include MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); MODULE_DESCRIPTION("iptables arbitrary IP range match module"); -#if 0 -#define DEBUGP printk -#else -#define DEBUGP(format, args...) -#endif - -static int +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, int *hotdrop) + int offset, unsigned int protoff, bool *hotdrop) { const struct ipt_iprange_info *info = matchinfo; - const struct iphdr *iph = skb->nh.iph; + 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))) + if ((ntohl(iph->saddr) < ntohl(info->src.min_ip) + || ntohl(iph->saddr) > ntohl(info->src.max_ip)) ^ !!(info->flags & IPRANGE_SRC_INV)) { - DEBUGP("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 0; + 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))) + if ((ntohl(iph->daddr) < ntohl(info->dst.min_ip) + || ntohl(iph->daddr) > ntohl(info->dst.max_ip)) ^ !!(info->flags & IPRANGE_DST_INV)) { - DEBUGP("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 0; + 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 1; + return true; } -static struct ipt_match iprange_match = { +static struct xt_match iprange_match __read_mostly = { .name = "iprange", + .family = AF_INET, .match = match, .matchsize = sizeof(struct ipt_iprange_info), - .destroy = NULL, .me = THIS_MODULE }; -static int __init init(void) +static int __init ipt_iprange_init(void) { - return ipt_register_match(&iprange_match); + return xt_register_match(&iprange_match); } -static void __exit fini(void) +static void __exit ipt_iprange_fini(void) { - ipt_unregister_match(&iprange_match); + xt_unregister_match(&iprange_match); } -module_init(init); -module_exit(fini); +module_init(ipt_iprange_init); +module_exit(ipt_iprange_fini);