mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-15 05:11:32 +00:00
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
|
#ifndef __NET_IPIP_H
|
||
|
|
#define __NET_IPIP_H 1
|
||
|
|
|
||
|
|
#include <linux/if_tunnel.h>
|
||
|
|
|
||
|
|
/* Keep error state on tunnel for 30 sec */
|
||
|
|
#define IPTUNNEL_ERR_TIMEO (30*HZ)
|
||
|
|
|
||
|
|
struct ip_tunnel
|
||
|
|
{
|
||
|
|
struct ip_tunnel *next;
|
||
|
|
struct net_device *dev;
|
||
|
|
struct net_device_stats stat;
|
||
|
|
|
||
|
|
int recursion; /* Depth of hard_start_xmit recursion */
|
||
|
|
int err_count; /* Number of arrived ICMP errors */
|
||
|
|
unsigned long err_time; /* Time when the last ICMP error arrived */
|
||
|
|
|
||
|
|
/* These four fields used only by GRE */
|
||
|
|
__u32 i_seqno; /* The last seen seqno */
|
||
|
|
__u32 o_seqno; /* The last output seqno */
|
||
|
|
int hlen; /* Precalculated GRE header length */
|
||
|
|
int mlink;
|
||
|
|
|
||
|
|
struct ip_tunnel_parm parms;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define IPTUNNEL_XMIT() do { \
|
||
|
|
int err; \
|
||
|
|
int pkt_len = skb->len; \
|
||
|
|
\
|
||
|
|
skb->ip_summed = CHECKSUM_NONE; \
|
||
|
|
iph->tot_len = htons(skb->len); \
|
||
|
|
ip_select_ident(iph, &rt->u.dst, NULL); \
|
||
|
|
ip_send_check(iph); \
|
||
|
|
\
|
||
|
|
err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, dst_output);\
|
||
|
|
if (err == NET_XMIT_SUCCESS || err == NET_XMIT_CN) { \
|
||
|
|
stats->tx_bytes += pkt_len; \
|
||
|
|
stats->tx_packets++; \
|
||
|
|
} else { \
|
||
|
|
stats->tx_errors++; \
|
||
|
|
stats->tx_aborted_errors++; \
|
||
|
|
} \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
|
||
|
|
extern int sit_init(void);
|
||
|
|
extern void sit_cleanup(void);
|
||
|
|
|
||
|
|
#endif
|