[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/include/net/ip6_tunnel.h b/src/kernel/linux/v4.14/include/net/ip6_tunnel.h
new file mode 100644
index 0000000..3b0e3cd
--- /dev/null
+++ b/src/kernel/linux/v4.14/include/net/ip6_tunnel.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NET_IP6_TUNNEL_H
+#define _NET_IP6_TUNNEL_H
+
+#include <linux/ipv6.h>
+#include <linux/netdevice.h>
+#include <linux/if_tunnel.h>
+#include <linux/ip6_tunnel.h>
+#include <net/ip_tunnels.h>
+#include <net/dst_cache.h>
+
+#define IP6TUNNEL_ERR_TIMEO (30*HZ)
+
+/* capable of sending packets */
+#define IP6_TNL_F_CAP_XMIT 0x10000
+/* capable of receiving packets */
+#define IP6_TNL_F_CAP_RCV 0x20000
+/* determine capability on a per-packet basis */
+#define IP6_TNL_F_CAP_PER_PACKET 0x40000
+
+struct __ip6_tnl_parm {
+ char name[IFNAMSIZ]; /* name of tunnel device */
+ int link; /* ifindex of underlying L2 interface */
+ __u8 proto; /* tunnel protocol */
+ __u8 encap_limit; /* encapsulation limit for tunnel */
+ __u8 hop_limit; /* hop limit for tunnel */
+ bool collect_md;
+ __be32 flowinfo; /* traffic class and flowlabel for tunnel */
+ __u32 flags; /* tunnel flags */
+ struct in6_addr laddr; /* local tunnel end-point address */
+ struct in6_addr raddr; /* remote tunnel end-point address */
+
+ __be16 i_flags;
+ __be16 o_flags;
+ __be32 i_key;
+ __be32 o_key;
+
+ __u32 fwmark;
+};
+
+/* IPv6 tunnel */
+struct ip6_tnl {
+ struct ip6_tnl __rcu *next; /* next tunnel in list */
+ struct net_device *dev; /* virtual device associated with tunnel */
+ struct net *net; /* netns for packet i/o */
+ struct __ip6_tnl_parm parms; /* tunnel configuration parameters */
+ struct flowi fl; /* flowi template for xmit */
+ struct dst_cache dst_cache; /* cached dst */
+ struct gro_cells gro_cells;
+
+ int err_count;
+ unsigned long err_time;
+
+ /* These fields used only by GRE */
+ __u32 i_seqno; /* The last seen seqno */
+ __u32 o_seqno; /* The last output seqno */
+ int hlen; /* tun_hlen + encap_hlen */
+ int tun_hlen; /* Precalculated header length */
+ int encap_hlen; /* Encap header length (FOU,GUE) */
+ struct ip_tunnel_encap encap;
+ int mlink;
+};
+
+struct ip6_tnl_encap_ops {
+ size_t (*encap_hlen)(struct ip_tunnel_encap *e);
+ int (*build_header)(struct sk_buff *skb, struct ip_tunnel_encap *e,
+ u8 *protocol, struct flowi6 *fl6);
+};
+
+#ifdef CONFIG_INET
+
+extern const struct ip6_tnl_encap_ops __rcu *
+ ip6tun_encaps[MAX_IPTUN_ENCAP_OPS];
+
+int ip6_tnl_encap_add_ops(const struct ip6_tnl_encap_ops *ops,
+ unsigned int num);
+int ip6_tnl_encap_del_ops(const struct ip6_tnl_encap_ops *ops,
+ unsigned int num);
+int ip6_tnl_encap_setup(struct ip6_tnl *t,
+ struct ip_tunnel_encap *ipencap);
+
+static inline int ip6_encap_hlen(struct ip_tunnel_encap *e)
+{
+ const struct ip6_tnl_encap_ops *ops;
+ int hlen = -EINVAL;
+
+ if (e->type == TUNNEL_ENCAP_NONE)
+ return 0;
+
+ if (e->type >= MAX_IPTUN_ENCAP_OPS)
+ return -EINVAL;
+
+ rcu_read_lock();
+ ops = rcu_dereference(ip6tun_encaps[e->type]);
+ if (likely(ops && ops->encap_hlen))
+ hlen = ops->encap_hlen(e);
+ rcu_read_unlock();
+
+ return hlen;
+}
+
+static inline int ip6_tnl_encap(struct sk_buff *skb, struct ip6_tnl *t,
+ u8 *protocol, struct flowi6 *fl6)
+{
+ const struct ip6_tnl_encap_ops *ops;
+ int ret = -EINVAL;
+
+ if (t->encap.type == TUNNEL_ENCAP_NONE)
+ return 0;
+
+ if (t->encap.type >= MAX_IPTUN_ENCAP_OPS)
+ return -EINVAL;
+
+ rcu_read_lock();
+ ops = rcu_dereference(ip6tun_encaps[t->encap.type]);
+ if (likely(ops && ops->build_header))
+ ret = ops->build_header(skb, &t->encap, protocol, fl6);
+ rcu_read_unlock();
+
+ return ret;
+}
+
+/* Tunnel encapsulation limit destination sub-option */
+
+struct ipv6_tlv_tnl_enc_lim {
+ __u8 type; /* type-code for option */
+ __u8 length; /* option length */
+ __u8 encap_limit; /* tunnel encapsulation limit */
+} __packed;
+
+int ip6_tnl_rcv_ctl(struct ip6_tnl *t, const struct in6_addr *laddr,
+ const struct in6_addr *raddr);
+int ip6_tnl_rcv(struct ip6_tnl *tunnel, struct sk_buff *skb,
+ const struct tnl_ptk_info *tpi, struct metadata_dst *tun_dst,
+ bool log_ecn_error);
+int ip6_tnl_xmit_ctl(struct ip6_tnl *t, const struct in6_addr *laddr,
+ const struct in6_addr *raddr);
+int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
+ struct flowi6 *fl6, int encap_limit, __u32 *pmtu, __u8 proto);
+__u16 ip6_tnl_parse_tlv_enc_lim(struct sk_buff *skb, __u8 *raw);
+__u32 ip6_tnl_get_cap(struct ip6_tnl *t, const struct in6_addr *laddr,
+ const struct in6_addr *raddr);
+struct net *ip6_tnl_get_link_net(const struct net_device *dev);
+int ip6_tnl_get_iflink(const struct net_device *dev);
+int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu);
+
+static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb,
+ struct net_device *dev)
+{
+ int pkt_len, err;
+
+ memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
+ pkt_len = skb->len - skb_inner_network_offset(skb);
+ err = ip6_local_out(dev_net(skb_dst(skb)->dev), sk, skb);
+
+ if (dev) {
+ if (unlikely(net_xmit_eval(err)))
+ pkt_len = -1;
+ iptunnel_xmit_stats(dev, pkt_len);
+ }
+}
+#endif
+#endif