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/* 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); struct dst_entry *(*ipv6_dst_lookup_flow)(struct net *net, const struct sock *sk, struct flowi6 *fl6, const struct in6_addr *final_dst); 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_nh_release_dsts)(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, bool skip_notify); 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); #if IS_ENABLED(CONFIG_XFRM) void (*xfrm6_local_rxpmtu)(struct sk_buff *skb, u32 mtu); int (*xfrm6_udp_encap_rcv)(struct sock *sk, struct sk_buff *skb); int (*xfrm6_rcv_encap)(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type); #endif struct neigh_table *nd_tbl; int (*ipv6_fragment)(struct net *net, struct sock *sk, struct sk_buff *skb, int (*output)(struct net *, struct sock *, struct sk_buff *)); struct net_device *(*ipv6_dev_find)(struct net *net, const struct in6_addr *addr, struct net_device *dev); }; 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, u32 flags); 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); int (*ipv6_dev_get_saddr)(struct net *net, const struct net_device *dst_dev, const struct in6_addr *daddr, unsigned int prefs, struct in6_addr *saddr); }; extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly; #endif