1/* IPv4-specific defines for netfilter. 
 2 * (C)1998 Rusty Russell -- This code is GPL.
 3 */
 4#ifndef __LINUX_IP_NETFILTER_H
 5#define __LINUX_IP_NETFILTER_H
 6
 7#include <uapi/linux/netfilter_ipv4.h>
 8
 9int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
11		       unsigned int dataoff, u_int8_t protocol);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12#endif /*__LINUX_IP_NETFILTER_H*/

 1/* IPv4-specific defines for netfilter. 
 2 * (C)1998 Rusty Russell -- This code is GPL.
 3 */
 4#ifndef __LINUX_IP_NETFILTER_H
 5#define __LINUX_IP_NETFILTER_H
 6
 7#include <uapi/linux/netfilter_ipv4.h>
 8
 9/* Extra routing may needed on local out, as the QUEUE target never returns
10 * control to the table.
11 */
12struct ip_rt_info {
13	__be32 daddr;
14	__be32 saddr;
15	u_int8_t tos;
16	u_int32_t mark;
17};
18
19int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type);
20
21struct nf_queue_entry;
22
23#ifdef CONFIG_INET
24__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
25		       unsigned int dataoff, u_int8_t protocol);
26__sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook,
27			       unsigned int dataoff, unsigned int len,
28			       u_int8_t protocol);
29int nf_ip_route(struct net *net, struct dst_entry **dst, struct flowi *fl,
30		bool strict);
31int nf_ip_reroute(struct sk_buff *skb, const struct nf_queue_entry *entry);
32#else
33static inline __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
34				     unsigned int dataoff, u_int8_t protocol)
35{
36	return 0;
37}
38static inline __sum16 nf_ip_checksum_partial(struct sk_buff *skb,
39					     unsigned int hook,
40					     unsigned int dataoff,
41					     unsigned int len,
42					     u_int8_t protocol)
43{
44	return 0;
45}
46static inline int nf_ip_route(struct net *net, struct dst_entry **dst,
47			      struct flowi *fl, bool strict)
48{
49	return -EOPNOTSUPP;
50}
51static inline int nf_ip_reroute(struct sk_buff *skb,
52				const struct nf_queue_entry *entry)
53{
54	return -EOPNOTSUPP;
55}
56#endif /* CONFIG_INET */
57
58#endif /*__LINUX_IP_NETFILTER_H*/