1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _IPV6_STUBS_H 3 #define _IPV6_STUBS_H 4 5 #include <linux/in6.h> 6 #include <linux/netdevice.h> 7 #include <linux/skbuff.h> 8 #include <net/dst.h> 9 #include <net/flow.h> 10 #include <net/neighbour.h> 11 #include <net/sock.h> 12 13 /* structs from net/ip6_fib.h */ 14 struct fib6_info; 15 struct fib6_nh; 16 struct fib6_config; 17 18 /* This is ugly, ideally these symbols should be built 19 * into the core kernel. 20 */ 21 struct ipv6_stub { 22 int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex, 23 const struct in6_addr *addr); 24 int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex, 25 const struct in6_addr *addr); 26 int (*ipv6_dst_lookup)(struct net *net, struct sock *sk, 27 struct dst_entry **dst, struct flowi6 *fl6); 28 int (*ipv6_route_input)(struct sk_buff *skb); 29 30 struct fib6_table *(*fib6_get_table)(struct net *net, u32 id); 31 struct fib6_info *(*fib6_lookup)(struct net *net, int oif, 32 struct flowi6 *fl6, int flags); 33 struct fib6_info *(*fib6_table_lookup)(struct net *net, 34 struct fib6_table *table, 35 int oif, struct flowi6 *fl6, 36 int flags); 37 struct fib6_info *(*fib6_multipath_select)(const struct net *net, 38 struct fib6_info *f6i, 39 struct flowi6 *fl6, int oif, 40 const struct sk_buff *skb, 41 int strict); 42 u32 (*ip6_mtu_from_fib6)(struct fib6_info *f6i, struct in6_addr *daddr, 43 struct in6_addr *saddr); 44 45 int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh, 46 struct fib6_config *cfg, gfp_t gfp_flags, 47 struct netlink_ext_ack *extack); 48 void (*fib6_nh_release)(struct fib6_nh *fib6_nh); 49 void (*udpv6_encap_enable)(void); 50 void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr, 51 const struct in6_addr *solicited_addr, 52 bool router, bool solicited, bool override, bool inc_opt); 53 struct neigh_table *nd_tbl; 54 }; 55 extern const struct ipv6_stub *ipv6_stub __read_mostly; 56 57 /* A stub used by bpf helpers. Similarly ugly as ipv6_stub */ 58 struct ipv6_bpf_stub { 59 int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len, 60 bool force_bind_address_no_port, bool with_lock); 61 struct sock *(*udp6_lib_lookup)(struct net *net, 62 const struct in6_addr *saddr, __be16 sport, 63 const struct in6_addr *daddr, __be16 dport, 64 int dif, int sdif, struct udp_table *tbl, 65 struct sk_buff *skb); 66 }; 67 extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly; 68 69 #endif 70