mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 17:24:17 +08:00
290b895e0b
Tunnels are going to use percpu for their accounting. They are going to use a new tstats field in net_device. skb_tunnel_rx() is changed to be a wrapper around __skb_tunnel_rx() IPTUNNEL_XMIT() is changed to be a wrapper around __IPTUNNEL_XMIT() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
#ifndef __NET_IPIP_H
|
|
#define __NET_IPIP_H 1
|
|
|
|
#include <linux/if_tunnel.h>
|
|
#include <net/ip.h>
|
|
|
|
/* Keep error state on tunnel for 30 sec */
|
|
#define IPTUNNEL_ERR_TIMEO (30*HZ)
|
|
|
|
/* 6rd prefix/relay information */
|
|
struct ip_tunnel_6rd_parm {
|
|
struct in6_addr prefix;
|
|
__be32 relay_prefix;
|
|
u16 prefixlen;
|
|
u16 relay_prefixlen;
|
|
};
|
|
|
|
struct ip_tunnel {
|
|
struct ip_tunnel *next;
|
|
struct net_device *dev;
|
|
|
|
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;
|
|
|
|
/* for SIT */
|
|
#ifdef CONFIG_IPV6_SIT_6RD
|
|
struct ip_tunnel_6rd_parm ip6rd;
|
|
#endif
|
|
struct ip_tunnel_prl_entry *prl; /* potential router list */
|
|
unsigned int prl_count; /* # of entries in PRL */
|
|
};
|
|
|
|
struct ip_tunnel_prl_entry {
|
|
struct ip_tunnel_prl_entry *next;
|
|
__be32 addr;
|
|
u16 flags;
|
|
struct rcu_head rcu_head;
|
|
};
|
|
|
|
#define __IPTUNNEL_XMIT(stats1, stats2) do { \
|
|
int err; \
|
|
int pkt_len = skb->len - skb_transport_offset(skb); \
|
|
\
|
|
skb->ip_summed = CHECKSUM_NONE; \
|
|
ip_select_ident(iph, &rt->dst, NULL); \
|
|
\
|
|
err = ip_local_out(skb); \
|
|
if (likely(net_xmit_eval(err) == 0)) { \
|
|
(stats1)->tx_bytes += pkt_len; \
|
|
(stats1)->tx_packets++; \
|
|
} else { \
|
|
(stats2)->tx_errors++; \
|
|
(stats2)->tx_aborted_errors++; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define IPTUNNEL_XMIT() __IPTUNNEL_XMIT(txq, stats)
|
|
|
|
#endif
|