From 07d2ca530d353bc8a2b401674732ec3ba3d11977 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Thu, 20 Jan 2011 18:51:54 +0100
Subject: The get_ip*_port functions are too large to be inlined, moved into
 the core.

---
 .../include/linux/netfilter/ipset/ip_set_getport.h | 125 +--------------------
 1 file changed, 6 insertions(+), 119 deletions(-)

(limited to 'kernel/include')

diff --git a/kernel/include/linux/netfilter/ipset/ip_set_getport.h b/kernel/include/linux/netfilter/ipset/ip_set_getport.h
index a5d243c..33d9fbe 100644
--- a/kernel/include/linux/netfilter/ipset/ip_set_getport.h
+++ b/kernel/include/linux/netfilter/ipset/ip_set_getport.h
@@ -1,126 +1,13 @@
 #ifndef _IP_SET_GETPORT_H
 #define _IP_SET_GETPORT_H
 
-#ifdef __KERNEL__
-#include <linux/icmp.h>
-#include <linux/icmpv6.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <net/ip.h>
-
 #define IPSET_INVALID_PORT	65536
 
-/* We must handle non-linear skbs */
-static inline 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 _icmph;
-		const struct icmphdr *ic;
-
-		ic = skb_header_pointer(skb, protooff, sizeof(_icmph), &_icmph);
-		if (ic == NULL)
-			return false;
-
-		*port = (__force __be16)((ic->type << 8) & ic->code);
-		break;
-	}
-	case IPPROTO_ICMPV6: {
-		struct icmp6hdr _icmph;
-		const struct icmp6hdr *ic;
-
-		ic = skb_header_pointer(skb, protooff, sizeof(_icmph), &_icmph);
-		if (ic == NULL)
-			return false;
-
-		*port = (__force __be16)((ic->icmp6_type << 8) & ic->icmp6_code);
-		break;
-	}
-	default:
-		break;
-	}
-	*proto = protocol;
-
-	return true;
-}
-
-static inline bool
-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);
-}
-
-static inline bool
-get_ip6_port(const struct sk_buff *skb, bool src, __be16 *port, u8 *proto)
-{
-	unsigned int protooff = 0;
-	int protocol;
-	unsigned short fragoff;
-
-	protocol = ipv6_find_hdr(skb, &protooff, -1, &fragoff);
-	if (protocol <= 0 || fragoff)
-		return false;
-
-	return get_port(skb, protocol, protooff, src, port, proto);
-}
-
-static inline bool
-get_ip_port(const struct sk_buff *skb, u8 pf, bool src, __be16 *port)
-{
-	bool ret;
-	u8 proto;
-
-	switch (pf) {
-	case AF_INET:
-		ret = get_ip4_port(skb, src, port, &proto);
-	case AF_INET6:
-		ret = get_ip6_port(skb, src, port, &proto);
-	default:
-		return false;
-	}
-	if (!ret)
-		return ret;
-	switch (proto) {
-	case IPPROTO_TCP:
-	case IPPROTO_UDP:
-		return true;
-	default:
-		return false;
-	}
-}
-#endif /* __KERNEL__ */
+extern bool ip_set_get_ip4_port(const struct sk_buff *skb, bool src,
+				__be16 *port, u8 *proto);
+extern bool ip_set_get_ip6_port(const struct sk_buff *skb, bool src,
+				__be16 *port, u8 *proto);
+extern bool ip_set_get_ip_port(const struct sk_buff *skb, u8 pf, bool src,
+				__be16 *port);
 
 #endif /*_IP_SET_GETPORT_H*/
-- 
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