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