diff options
Diffstat (limited to 'include/net/ip_tunnels.h')
| -rw-r--r-- | include/net/ip_tunnels.h | 61 |
1 files changed, 34 insertions, 27 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 09b1360e10b..a4daf9eb856 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -38,10 +38,15 @@ struct ip_tunnel_prl_entry { struct rcu_head rcu_head; }; +struct ip_tunnel_dst { + struct dst_entry __rcu *dst; +}; + struct ip_tunnel { struct ip_tunnel __rcu *next; struct hlist_node hash_node; struct net_device *dev; + struct net *net; /* netns for packet i/o */ int err_count; /* Number of arrived ICMP errors */ unsigned long err_time; /* Time when the last ICMP error @@ -53,6 +58,8 @@ struct ip_tunnel { int hlen; /* Precalculated header length */ int mlink; + struct ip_tunnel_dst __percpu *dst_cache; + struct ip_tunnel_parm parms; /* for SIT */ @@ -73,6 +80,7 @@ struct ip_tunnel { #define TUNNEL_REC __cpu_to_be16(0x20) #define TUNNEL_VERSION __cpu_to_be16(0x40) #define TUNNEL_NO_KEY __cpu_to_be16(0x80) +#define TUNNEL_DONT_FRAGMENT __cpu_to_be16(0x0100) struct tnl_ptk_info { __be16 flags; @@ -84,24 +92,26 @@ struct tnl_ptk_info { #define PACKET_RCVD 0 #define PACKET_REJECT 1 -#define IP_TNL_HASH_BITS 10 +#define IP_TNL_HASH_BITS 7 #define IP_TNL_HASH_SIZE (1 << IP_TNL_HASH_BITS) struct ip_tunnel_net { - struct hlist_head *tunnels; struct net_device *fb_tunnel_dev; + struct hlist_head tunnels[IP_TNL_HASH_SIZE]; }; +#ifdef CONFIG_INET + int ip_tunnel_init(struct net_device *dev); void ip_tunnel_uninit(struct net_device *dev); void ip_tunnel_dellink(struct net_device *dev, struct list_head *head); int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id, struct rtnl_link_ops *ops, char *devname); -void ip_tunnel_delete_net(struct ip_tunnel_net *itn); +void ip_tunnel_delete_net(struct ip_tunnel_net *itn, struct rtnl_link_ops *ops); void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, - const struct iphdr *tnl_params); + const struct iphdr *tnl_params, const u8 protocol); int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd); int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu); @@ -119,6 +129,7 @@ int ip_tunnel_changelink(struct net_device *dev, struct nlattr *tb[], int ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[], struct ip_tunnel_parm *p); void ip_tunnel_setup(struct net_device *dev, int net_id); +void ip_tunnel_dst_reset_all(struct ip_tunnel *t); /* Extract dsfield from inner protocol */ static inline u8 ip_tunnel_get_dsfield(const struct iphdr *iph, @@ -141,37 +152,33 @@ static inline u8 ip_tunnel_ecn_encap(u8 tos, const struct iphdr *iph, return INET_ECN_encapsulate(tos, inner); } -static inline void tunnel_ip_select_ident(struct sk_buff *skb, - const struct iphdr *old_iph, - struct dst_entry *dst) -{ - struct iphdr *iph = ip_hdr(skb); +int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto); +int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb, + __be32 src, __be32 dst, __u8 proto, + __u8 tos, __u8 ttl, __be16 df, bool xnet); - /* Use inner packet iph-id if possible. */ - if (skb->protocol == htons(ETH_P_IP) && old_iph->id) - iph->id = old_iph->id; - else - __ip_select_ident(iph, dst, - (skb_shinfo(skb)->gso_segs ?: 1) - 1); -} +struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb, bool gre_csum, + int gso_type_mask); -static inline void iptunnel_xmit(struct sk_buff *skb, struct net_device *dev) +static inline void iptunnel_xmit_stats(int err, + struct net_device_stats *err_stats, + struct pcpu_sw_netstats __percpu *stats) { - int err; - int pkt_len = skb->len - skb_transport_offset(skb); - struct pcpu_tstats *tstats = this_cpu_ptr(dev->tstats); - - nf_reset(skb); + if (err > 0) { + struct pcpu_sw_netstats *tstats = this_cpu_ptr(stats); - err = ip_local_out(skb); - if (likely(net_xmit_eval(err) == 0)) { u64_stats_update_begin(&tstats->syncp); - tstats->tx_bytes += pkt_len; + tstats->tx_bytes += err; tstats->tx_packets++; u64_stats_update_end(&tstats->syncp); + } else if (err < 0) { + err_stats->tx_errors++; + err_stats->tx_aborted_errors++; } else { - dev->stats.tx_errors++; - dev->stats.tx_aborted_errors++; + err_stats->tx_dropped++; } } + +#endif /* CONFIG_INET */ + #endif /* __NET_IP_TUNNELS_H */ |