1 files changed, 68 insertions, 0 deletions
diff --git a/include/net/ipv6_stubs.h b/include/net/ipv6_stubs.h
new file mode 100644
index 000000000000..6c0c4fde16f8
--- /dev/null
+++ b/include/net/ipv6_stubs.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _IPV6_STUBS_H
+#define _IPV6_STUBS_H
+
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <net/dst.h>
+#include <net/flow.h>
+#include <net/neighbour.h>
+#include <net/sock.h>
+
+/* structs from net/ip6_fib.h */
+struct fib6_info;
+struct fib6_nh;
+struct fib6_config;
+struct fib6_result;
+
+/* This is ugly, ideally these symbols should be built
+ * into the core kernel.
+ */
+struct ipv6_stub {
+	int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex,
+				 const struct in6_addr *addr);
+	int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex,
+				 const struct in6_addr *addr);
+	int (*ipv6_dst_lookup)(struct net *net, struct sock *sk,
+			       struct dst_entry **dst, struct flowi6 *fl6);
+	int (*ipv6_route_input)(struct sk_buff *skb);
+
+	struct fib6_table *(*fib6_get_table)(struct net *net, u32 id);
+	int (*fib6_lookup)(struct net *net, int oif, struct flowi6 *fl6,
+			   struct fib6_result *res, int flags);
+	int (*fib6_table_lookup)(struct net *net, struct fib6_table *table,
+				 int oif, struct flowi6 *fl6,
+				 struct fib6_result *res, int flags);
+	void (*fib6_select_path)(const struct net *net, struct fib6_result *res,
+				 struct flowi6 *fl6, int oif, bool oif_match,
+				 const struct sk_buff *skb, int strict);
+	u32 (*ip6_mtu_from_fib6)(const struct fib6_result *res,
+				 const struct in6_addr *daddr,
+				 const struct in6_addr *saddr);
+
+	int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh,
+			    struct fib6_config *cfg, gfp_t gfp_flags,
+			    struct netlink_ext_ack *extack);
+	void (*fib6_nh_release)(struct fib6_nh *fib6_nh);
+	void (*udpv6_encap_enable)(void);
+	void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
+			      const struct in6_addr *solicited_addr,
+			      bool router, bool solicited, bool override, bool inc_opt);
+	struct neigh_table *nd_tbl;
+};
+extern const struct ipv6_stub *ipv6_stub __read_mostly;
+
+/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
+struct ipv6_bpf_stub {
+	int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
+			  bool force_bind_address_no_port, bool with_lock);
+	struct sock *(*udp6_lib_lookup)(struct net *net,
+				     const struct in6_addr *saddr, __be16 sport,
+				     const struct in6_addr *daddr, __be16 dport,
+				     int dif, int sdif, struct udp_table *tbl,
+				     struct sk_buff *skb);
+};
+extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
+
+#endif