Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /include/linux/netfilter_ipv4.h 
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/* 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*/