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authorJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2011-02-03 11:44:27 +0100
committerJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2011-02-03 11:44:27 +0100
commitbc76594d91f3953d676201e3f06534338ab01524 (patch)
tree20754f42b2144e08c5c382246e5bc57622f1a1e0 /kernel/ip_set_getport.c
parent43b0532ea90ae4140233f1e293ff663f7e49bec8 (diff)
Reorganized kernel/ subdir
The kernel/ subdirectory is reorganized to follow the kernel directory structure.
Diffstat (limited to 'kernel/ip_set_getport.c')
-rw-r--r--kernel/ip_set_getport.c141
1 files changed, 0 insertions, 141 deletions
diff --git a/kernel/ip_set_getport.c b/kernel/ip_set_getport.c
deleted file mode 100644
index 8d52272..0000000
--- a/kernel/ip_set_getport.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* Copyright (C) 2003-2011 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.
- */
-
-/* Get Layer-4 data from the packets */
-
-#include <linux/ip.h>
-#include <linux/skbuff.h>
-#include <linux/icmp.h>
-#include <linux/icmpv6.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <net/ip.h>
-#include <net/ipv6.h>
-
-#include <linux/netfilter/ipset/ip_set_getport.h>
-
-/* We must handle non-linear skbs */
-static bool
-get_port(const struct sk_buff *skb, int protocol, unsigned int protooff,
- bool src, __be16 *port, u8 *proto)
-{
- switch (protocol) {
- case IPPROTO_TCP: {
- struct tcphdr _tcph;
- const struct tcphdr *th;
-
- th = skb_header_pointer(skb, protooff, sizeof(_tcph), &_tcph);
- if (th == NULL)
- /* No choice either */
- return false;
-
- *port = src ? th->source : th->dest;
- break;
- }
- case IPPROTO_UDP: {
- struct udphdr _udph;
- const struct udphdr *uh;
-
- uh = skb_header_pointer(skb, protooff, sizeof(_udph), &_udph);
- if (uh == NULL)
- /* No choice either */
- return false;
-
- *port = src ? uh->source : uh->dest;
- break;
- }
- case IPPROTO_ICMP: {
- struct icmphdr _ich;
- const struct icmphdr *ic;
-
- ic = skb_header_pointer(skb, protooff, sizeof(_ich), &_ich);
- if (ic == NULL)
- return false;
-
- *port = (__force __be16)htons((ic->type << 8) | ic->code);
- break;
- }
- case IPPROTO_ICMPV6: {
- struct icmp6hdr _ich;
- const struct icmp6hdr *ic;
-
- ic = skb_header_pointer(skb, protooff, sizeof(_ich), &_ich);
- if (ic == NULL)
- return false;
-
- *port = (__force __be16)
- htons((ic->icmp6_type << 8) | ic->icmp6_code);
- break;
- }
- default:
- break;
- }
- *proto = protocol;
-
- return true;
-}
-
-bool
-ip_set_get_ip4_port(const struct sk_buff *skb, bool src,
- __be16 *port, u8 *proto)
-{
- const struct iphdr *iph = ip_hdr(skb);
- unsigned int protooff = ip_hdrlen(skb);
- int protocol = iph->protocol;
-
- /* See comments at tcp_match in ip_tables.c */
- if (protocol <= 0 || (ntohs(iph->frag_off) & IP_OFFSET))
- return false;
-
- return get_port(skb, protocol, protooff, src, port, proto);
-}
-EXPORT_SYMBOL_GPL(ip_set_get_ip4_port);
-
-#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
-bool
-ip_set_get_ip6_port(const struct sk_buff *skb, bool src,
- __be16 *port, u8 *proto)
-{
- int protoff;
- u8 nexthdr;
-
- nexthdr = ipv6_hdr(skb)->nexthdr;
- protoff = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &nexthdr);
- if (protoff < 0)
- return false;
-
- return get_port(skb, nexthdr, protoff, src, port, proto);
-}
-EXPORT_SYMBOL_GPL(ip_set_get_ip6_port);
-#endif
-
-bool
-ip_set_get_ip_port(const struct sk_buff *skb, u8 pf, bool src, __be16 *port)
-{
- bool ret;
- u8 proto;
-
- switch (pf) {
- case AF_INET:
- ret = ip_set_get_ip4_port(skb, src, port, &proto);
- break;
- case AF_INET6:
- ret = ip_set_get_ip6_port(skb, src, port, &proto);
- break;
- default:
- return false;
- }
- if (!ret)
- return ret;
- switch (proto) {
- case IPPROTO_TCP:
- case IPPROTO_UDP:
- return true;
- default:
- return false;
- }
-}
-EXPORT_SYMBOL_GPL(ip_set_get_ip_port);