Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/ipv6_stubs.h b/include/net/ipv6_stubs.h
new file mode 100644
index 0000000..5c93e94
--- /dev/null
+++ b/include/net/ipv6_stubs.h
@@ -0,0 +1,73 @@
+/* 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 (*fib6_update_sernum)(struct net *net, struct fib6_info *rt);
+ int (*ip6_del_rt)(struct net *net, struct fib6_info *rt);
+ void (*fib6_rt_update)(struct net *net, struct fib6_info *rt,
+ struct nl_info *info);
+
+ 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