Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef __NET_IPIP_H |
2 | #define __NET_IPIP_H 1 | |
3 | ||
4 | #include <linux/if_tunnel.h> | |
c439cb2e | 5 | #include <net/ip.h> |
1da177e4 LT |
6 | |
7 | /* Keep error state on tunnel for 30 sec */ | |
8 | #define IPTUNNEL_ERR_TIMEO (30*HZ) | |
9 | ||
fa857afc YH |
10 | /* 6rd prefix/relay information */ |
11 | struct ip_tunnel_6rd_parm | |
12 | { | |
13 | struct in6_addr prefix; | |
14 | __be32 relay_prefix; | |
15 | u16 prefixlen; | |
16 | u16 relay_prefixlen; | |
17 | }; | |
18 | ||
1da177e4 LT |
19 | struct ip_tunnel |
20 | { | |
21 | struct ip_tunnel *next; | |
22 | struct net_device *dev; | |
1da177e4 | 23 | |
1da177e4 LT |
24 | int err_count; /* Number of arrived ICMP errors */ |
25 | unsigned long err_time; /* Time when the last ICMP error arrived */ | |
26 | ||
27 | /* These four fields used only by GRE */ | |
28 | __u32 i_seqno; /* The last seen seqno */ | |
29 | __u32 o_seqno; /* The last output seqno */ | |
30 | int hlen; /* Precalculated GRE header length */ | |
31 | int mlink; | |
32 | ||
33 | struct ip_tunnel_parm parms; | |
300aaeea | 34 | |
fa857afc YH |
35 | /* for SIT */ |
36 | #ifdef CONFIG_IPV6_SIT_6RD | |
37 | struct ip_tunnel_6rd_parm ip6rd; | |
38 | #endif | |
fadf6bf0 | 39 | struct ip_tunnel_prl_entry *prl; /* potential router list */ |
300aaeea | 40 | unsigned int prl_count; /* # of entries in PRL */ |
fadf6bf0 TF |
41 | }; |
42 | ||
43 | struct ip_tunnel_prl_entry | |
44 | { | |
45 | struct ip_tunnel_prl_entry *next; | |
300aaeea YH |
46 | __be32 addr; |
47 | u16 flags; | |
1da177e4 LT |
48 | }; |
49 | ||
50 | #define IPTUNNEL_XMIT() do { \ | |
51 | int err; \ | |
64194c31 | 52 | int pkt_len = skb->len - skb_transport_offset(skb); \ |
1da177e4 LT |
53 | \ |
54 | skb->ip_summed = CHECKSUM_NONE; \ | |
1da177e4 | 55 | ip_select_ident(iph, &rt->u.dst, NULL); \ |
1da177e4 | 56 | \ |
c439cb2e | 57 | err = ip_local_out(skb); \ |
0bfbedb1 ED |
58 | if (likely(net_xmit_eval(err) == 0)) { \ |
59 | txq->tx_bytes += pkt_len; \ | |
60 | txq->tx_packets++; \ | |
1da177e4 LT |
61 | } else { \ |
62 | stats->tx_errors++; \ | |
63 | stats->tx_aborted_errors++; \ | |
64 | } \ | |
65 | } while (0) | |
66 | ||
1da177e4 | 67 | #endif |