blob: 082e2c41b7ff90a8e03c55f2f78c4d1129345760 [file] [log] [blame]
/* IPv4-specific defines for netfilter.
* (C)1998 Rusty Russell -- This code is GPL.
*/
#ifndef __LINUX_IP_NETFILTER_H
#define __LINUX_IP_NETFILTER_H
#include <uapi/linux/netfilter_ipv4.h>
/* Extra routing may needed on local out, as the QUEUE target never returns
* control to the table.
*/
struct ip_rt_info {
__be32 daddr;
__be32 saddr;
u_int8_t tos;
u_int32_t mark;
};
int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type);
struct nf_queue_entry;
#ifdef CONFIG_INET
__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol);
int nf_ip_route(struct net *net, struct dst_entry **dst, struct flowi *fl,
bool strict);
#else
static inline __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
return 0;
}
static inline int nf_ip_route(struct net *net, struct dst_entry **dst,
struct flowi *fl, bool strict)
{
return -EOPNOTSUPP;
}
#endif /* CONFIG_INET */
#endif /*__LINUX_IP_NETFILTER_H*/