#ifndef __NET_IP_TUNNELS_WRAPPER_H
#define __NET_IP_TUNNELS_WRAPPER_H 1
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
+#include_next <net/ip_tunnels.h>
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0)
+
#include <linux/if_tunnel.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/ip.h>
#include <net/rtnetlink.h>
+struct sk_buff *ovs_iptunnel_handle_offloads(struct sk_buff *skb,
+ bool csum_help, int gso_type_mask,
+ void (*fix_segment)(struct sk_buff *));
+
+#define iptunnel_xmit rpl_iptunnel_xmit
+int rpl_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);
+
+#define iptunnel_pull_header rpl_iptunnel_pull_header
+int rpl_iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
+
+#else
+
+#define ovs_iptunnel_handle_offloads(skb, csum_help, gso_type_mask, fix_segment) \
+ iptunnel_handle_offloads(skb, csum_help, gso_type_mask)
+
+#endif /* 3.18 */
+
+#ifndef TUNNEL_CSUM
#define TUNNEL_CSUM __cpu_to_be16(0x01)
#define TUNNEL_ROUTING __cpu_to_be16(0x02)
#define TUNNEL_KEY __cpu_to_be16(0x04)
#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;
#define PACKET_RCVD 0
#define PACKET_REJECT 1
+#endif
+
+#ifndef TUNNEL_DONT_FRAGMENT
+#define TUNNEL_DONT_FRAGMENT __cpu_to_be16(0x0100)
+#endif
+
+#ifndef TUNNEL_OAM
+#define TUNNEL_OAM __cpu_to_be16(0x0200)
+#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
+#endif
+
+#ifndef TUNNEL_GENEVE_OPT
+#define TUNNEL_GENEVE_OPT __cpu_to_be16(0x0800)
+#endif
+
+#ifndef TUNNEL_VXLAN_OPT
+#define TUNNEL_VXLAN_OPT __cpu_to_be16(0x1000)
+#endif
+
+/* Older kernels defined TUNNEL_OPTIONS_PRESENT to GENEVE only */
+#undef TUNNEL_OPTIONS_PRESENT
+#define TUNNEL_OPTIONS_PRESENT (TUNNEL_GENEVE_OPT | TUNNEL_VXLAN_OPT)
+
+#define skb_is_encapsulated ovs_skb_is_encapsulated
+bool ovs_skb_is_encapsulated(struct sk_buff *skb);
+
+#ifndef HAVE_METADATA_DST
+/* Used to memset ip_tunnel padding. */
+#define IP_TUNNEL_KEY_SIZE offsetofend(struct ip_tunnel_key, tp_dst)
+
+/* Used to memset ipv4 address padding. */
+#define IP_TUNNEL_KEY_IPV4_PAD offsetofend(struct ip_tunnel_key, u.ipv4.dst)
+#define IP_TUNNEL_KEY_IPV4_PAD_LEN \
+ (FIELD_SIZEOF(struct ip_tunnel_key, u) - \
+ FIELD_SIZEOF(struct ip_tunnel_key, u.ipv4))
+
+struct ip_tunnel_key {
+ __be64 tun_id;
+ union {
+ struct {
+ __be32 src;
+ __be32 dst;
+ } ipv4;
+ struct {
+ struct in6_addr src;
+ struct in6_addr dst;
+ } ipv6;
+ } u;
+ __be16 tun_flags;
+ u8 tos; /* TOS for IPv4, TC for IPv6 */
+ u8 ttl; /* TTL for IPv4, HL for IPv6 */
+ __be16 tp_src;
+ __be16 tp_dst;
+};
+
+/* Flags for ip_tunnel_info mode. */
+#define IP_TUNNEL_INFO_TX 0x01 /* represents tx tunnel parameters */
+#define IP_TUNNEL_INFO_IPV6 0x02 /* key contains IPv6 addresses */
+
+struct ip_tunnel_info {
+ struct ip_tunnel_key key;
+ u8 options_len;
+ u8 mode;
+};
+
+static inline unsigned short ip_tunnel_info_af(const struct ip_tunnel_info *tun_info)
+{
+ return tun_info->mode & IP_TUNNEL_INFO_IPV6 ? AF_INET6 : AF_INET;
+}
+
+static inline void *ip_tunnel_info_opts(struct ip_tunnel_info *info)
+{
+ return info + 1;
+}
+
+static inline void ip_tunnel_info_opts_get(void *to,
+ const struct ip_tunnel_info *info)
+{
+ memcpy(to, info + 1, info->options_len);
+}
+
+static inline void ip_tunnel_info_opts_set(struct ip_tunnel_info *info,
+ const void *from, int len)
+{
+ memcpy(ip_tunnel_info_opts(info), from, len);
+ info->options_len = len;
+}
+
+static inline void ip_tunnel_key_init(struct ip_tunnel_key *key,
+ __be32 saddr, __be32 daddr,
+ u8 tos, u8 ttl,
+ __be16 tp_src, __be16 tp_dst,
+ __be64 tun_id, __be16 tun_flags)
+{
+ key->tun_id = tun_id;
+ key->u.ipv4.src = saddr;
+ key->u.ipv4.dst = daddr;
+ memset((unsigned char *)key + IP_TUNNEL_KEY_IPV4_PAD,
+ 0, IP_TUNNEL_KEY_IPV4_PAD_LEN);
+ key->tos = tos;
+ key->ttl = ttl;
+ key->tun_flags = tun_flags;
+
+ /* For the tunnel types on the top of IPsec, the tp_src and tp_dst of
+ * the upper tunnel are used.
+ * E.g: GRE over IPSEC, the tp_src and tp_port are zero.
+ */
+ key->tp_src = tp_src;
+ key->tp_dst = tp_dst;
+
+ /* Clear struct padding. */
+ if (sizeof(*key) != IP_TUNNEL_KEY_SIZE)
+ memset((unsigned char *)key + IP_TUNNEL_KEY_SIZE,
+ 0, sizeof(*key) - IP_TUNNEL_KEY_SIZE);
+}
+
+#define ip_tunnel_collect_metadata() true
+
+
+#define ip_tunnel rpl_ip_tunnel
+
+struct ip_tunnel {
+ 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
+ * arrived
+ */
+
+ /* These four fields used only by GRE */
+ u32 i_seqno; /* The last seen seqno */
+ u32 o_seqno; /* The last output seqno */
+ int tun_hlen; /* Precalculated header length */
+ int mlink;
+
+ struct ip_tunnel_parm parms;
+
+ int encap_hlen; /* Encap header length (FOU,GUE) */
+ int hlen; /* tun_hlen + encap_hlen */
+
+ int ip_tnl_net_id;
+ bool collect_md;
+};
+
+#define ip_tunnel_net rpl_ip_tunnel_net
+struct ip_tunnel_net {
+ struct ip_tunnel __rcu *collect_md_tun;
+ struct rtnl_link_ops *rtnl_ops;
+};
+
+
+#ifndef HAVE_PCPU_SW_NETSTATS
+#define ip_tunnel_get_stats64 rpl_ip_tunnel_get_stats64
+struct rtnl_link_stats64 *rpl_ip_tunnel_get_stats64(struct net_device *dev,
+ struct rtnl_link_stats64 *tot);
+#endif
+
+#define ip_tunnel_get_dsfield rpl_ip_tunnel_get_dsfield
+static inline u8 ip_tunnel_get_dsfield(const struct iphdr *iph,
+ const struct sk_buff *skb)
+{
+ if (skb->protocol == htons(ETH_P_IP))
+ return iph->tos;
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ return ipv6_get_dsfield((const struct ipv6hdr *)iph);
+ else
+ return 0;
+}
+
+#define ip_tunnel_ecn_encap rpl_ip_tunnel_ecn_encap
+static inline u8 ip_tunnel_ecn_encap(u8 tos, const struct iphdr *iph,
+ const struct sk_buff *skb)
+{
+ u8 inner = ip_tunnel_get_dsfield(iph, skb);
+
+ return INET_ECN_encapsulate(tos, inner);
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
+#define iptunnel_xmit_stats(err, stats, dummy) \
+do { \
+ if (err > 0) { \
+ (stats)->tx_bytes += err; \
+ (stats)->tx_packets++; \
+ } else if (err < 0) { \
+ (stats)->tx_errors++; \
+ (stats)->tx_aborted_errors++; \
+ } else { \
+ (stats)->tx_dropped++; \
+ } \
+} while (0)
+
+#else
+#define iptunnel_xmit_stats rpl_iptunnel_xmit_stats
+static inline void iptunnel_xmit_stats(int err,
+ struct net_device_stats *err_stats,
+ struct pcpu_sw_netstats __percpu *stats)
+{
+ if (err > 0) {
+ struct pcpu_sw_netstats *tstats = this_cpu_ptr(stats);
+
+ u64_stats_update_begin(&tstats->syncp);
+ 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 {
+ err_stats->tx_dropped++;
+ }
+}
+#endif
+
+#define ip_tunnel_init rpl_ip_tunnel_init
+int rpl_ip_tunnel_init(struct net_device *dev);
+
+#define ip_tunnel_uninit rpl_ip_tunnel_uninit
+void rpl_ip_tunnel_uninit(struct net_device *dev);
+
+#define ip_tunnel_change_mtu rpl_ip_tunnel_change_mtu
+int rpl_ip_tunnel_change_mtu(struct net_device *dev, int new_mtu);
+
+#define ip_tunnel_newlink rpl_ip_tunnel_newlink
+int rpl_ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[],
+ struct ip_tunnel_parm *p);
+
+#define ip_tunnel_dellink rpl_ip_tunnel_dellink
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
+void rpl_ip_tunnel_dellink(struct net_device *dev, struct list_head *head);
+#else
+void rpl_ip_tunnel_dellink(struct net_device *dev);
+#endif
+
+#define ip_tunnel_init_net rpl_ip_tunnel_init_net
+int rpl_ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
+ struct rtnl_link_ops *ops, char *devname);
+
+#define ip_tunnel_delete_net rpl_ip_tunnel_delete_net
+void rpl_ip_tunnel_delete_net(struct ip_tunnel_net *itn, struct rtnl_link_ops *ops);
+
+#define ip_tunnel_setup rpl_ip_tunnel_setup
+void rpl_ip_tunnel_setup(struct net_device *dev, int net_id);
-int iptunnel_xmit(struct rtable *rt,
- struct sk_buff *skb,
- __be32 src, __be32 dst, __u8 proto,
- __u8 tos, __u8 ttl, __be16 df);
+#define ip_tunnel_get_iflink rpl_ip_tunnel_get_iflink
+int rpl_ip_tunnel_get_iflink(const struct net_device *dev);
-int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
+#define ip_tunnel_get_link_net rpl_ip_tunnel_get_link_net
+struct net *rpl_ip_tunnel_get_link_net(const struct net_device *dev);
+#endif /* HAVE_METADATA_DST */
#endif /* __NET_IP_TUNNELS_H */
projects / cascardo / ovs.git / blobdiff