LXR linux/include/net/ipv6

   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 */
  14struct fib6_info;
  15struct fib6_nh;
  16struct fib6_config;
  17struct fib6_result;
  18
  19/* This is ugly, ideally these symbols should be built
  20 * into the core kernel.
  21 */
  22struct ipv6_stub {
  23        int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex,
  24                                 const struct in6_addr *addr);
  25        int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex,
  26                                 const struct in6_addr *addr);
  27        int (*ipv6_dst_lookup)(struct net *net, struct sock *sk,
  28                               struct dst_entry **dst, struct flowi6 *fl6);
  29        int (*ipv6_route_input)(struct sk_buff *skb);
  30
  31        struct fib6_table *(*fib6_get_table)(struct net *net, u32 id);
  32        int (*fib6_lookup)(struct net *net, int oif, struct flowi6 *fl6,
  33                           struct fib6_result *res, int flags);
  34        int (*fib6_table_lookup)(struct net *net, struct fib6_table *table,
  35                                 int oif, struct flowi6 *fl6,
  36                                 struct fib6_result *res, int flags);
  37        void (*fib6_select_path)(const struct net *net, struct fib6_result *res,
  38                                 struct flowi6 *fl6, int oif, bool oif_match,
  39                                 const struct sk_buff *skb, int strict);
  40        u32 (*ip6_mtu_from_fib6)(const struct fib6_result *res,
  41                                 const struct in6_addr *daddr,
  42                                 const struct in6_addr *saddr);
  43
  44        int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh,
  45                            struct fib6_config *cfg, gfp_t gfp_flags,
  46                            struct netlink_ext_ack *extack);
  47        void (*fib6_nh_release)(struct fib6_nh *fib6_nh);
  48        void (*udpv6_encap_enable)(void);
  49        void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
  50                              const struct in6_addr *solicited_addr,
  51                              bool router, bool solicited, bool override, bool inc_opt);
  52        struct neigh_table *nd_tbl;
  53};
  54extern const struct ipv6_stub *ipv6_stub __read_mostly;
  55
  56/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
  57struct ipv6_bpf_stub {
  58        int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
  59                          bool force_bind_address_no_port, bool with_lock);
  60        struct sock *(*udp6_lib_lookup)(struct net *net,
  61                                     const struct in6_addr *saddr, __be16 sport,
  62                                     const struct in6_addr *daddr, __be16 dport,
  63                                     int dif, int sdif, struct udp_table *tbl,
  64                                     struct sk_buff *skb);
  65};
  66extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
  67
  68#endif
  69