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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 (*fib6_update_sernum)(struct net *net, struct fib6_info *rt);
49 int (*ip6_del_rt)(struct net *net, struct fib6_info *rt);
50 void (*fib6_rt_update)(struct net *net, struct fib6_info *rt,
51 struct nl_info *info);
52
53 void (*udpv6_encap_enable)(void);
54 void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
55 const struct in6_addr *solicited_addr,
56 bool router, bool solicited, bool override, bool inc_opt);
57 struct neigh_table *nd_tbl;
58};
59extern const struct ipv6_stub *ipv6_stub __read_mostly;
60
61/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
62struct ipv6_bpf_stub {
63 int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
64 bool force_bind_address_no_port, bool with_lock);
65 struct sock *(*udp6_lib_lookup)(struct net *net,
66 const struct in6_addr *saddr, __be16 sport,
67 const struct in6_addr *daddr, __be16 dport,
68 int dif, int sdif, struct udp_table *tbl,
69 struct sk_buff *skb);
70};
71extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
72
73#endif
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 struct dst_entry *(*ipv6_dst_lookup_flow)(struct net *net,
28 const struct sock *sk,
29 struct flowi6 *fl6,
30 const struct in6_addr *final_dst);
31 int (*ipv6_route_input)(struct sk_buff *skb);
32
33 struct fib6_table *(*fib6_get_table)(struct net *net, u32 id);
34 int (*fib6_lookup)(struct net *net, int oif, struct flowi6 *fl6,
35 struct fib6_result *res, int flags);
36 int (*fib6_table_lookup)(struct net *net, struct fib6_table *table,
37 int oif, struct flowi6 *fl6,
38 struct fib6_result *res, int flags);
39 void (*fib6_select_path)(const struct net *net, struct fib6_result *res,
40 struct flowi6 *fl6, int oif, bool oif_match,
41 const struct sk_buff *skb, int strict);
42 u32 (*ip6_mtu_from_fib6)(const struct fib6_result *res,
43 const struct in6_addr *daddr,
44 const struct in6_addr *saddr);
45
46 int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh,
47 struct fib6_config *cfg, gfp_t gfp_flags,
48 struct netlink_ext_ack *extack);
49 void (*fib6_nh_release)(struct fib6_nh *fib6_nh);
50 void (*fib6_nh_release_dsts)(struct fib6_nh *fib6_nh);
51 void (*fib6_update_sernum)(struct net *net, struct fib6_info *rt);
52 int (*ip6_del_rt)(struct net *net, struct fib6_info *rt, bool skip_notify);
53 void (*fib6_rt_update)(struct net *net, struct fib6_info *rt,
54 struct nl_info *info);
55
56 void (*udpv6_encap_enable)(void);
57 void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
58 const struct in6_addr *solicited_addr,
59 bool router, bool solicited, bool override, bool inc_opt);
60#if IS_ENABLED(CONFIG_XFRM)
61 void (*xfrm6_local_rxpmtu)(struct sk_buff *skb, u32 mtu);
62 int (*xfrm6_udp_encap_rcv)(struct sock *sk, struct sk_buff *skb);
63 int (*xfrm6_rcv_encap)(struct sk_buff *skb, int nexthdr, __be32 spi,
64 int encap_type);
65#endif
66 struct neigh_table *nd_tbl;
67
68 int (*ipv6_fragment)(struct net *net, struct sock *sk, struct sk_buff *skb,
69 int (*output)(struct net *, struct sock *, struct sk_buff *));
70 struct net_device *(*ipv6_dev_find)(struct net *net, const struct in6_addr *addr,
71 struct net_device *dev);
72};
73extern const struct ipv6_stub *ipv6_stub __read_mostly;
74
75/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
76struct ipv6_bpf_stub {
77 int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
78 u32 flags);
79 struct sock *(*udp6_lib_lookup)(struct net *net,
80 const struct in6_addr *saddr, __be16 sport,
81 const struct in6_addr *daddr, __be16 dport,
82 int dif, int sdif, struct udp_table *tbl,
83 struct sk_buff *skb);
84 int (*ipv6_setsockopt)(struct sock *sk, int level, int optname,
85 sockptr_t optval, unsigned int optlen);
86 int (*ipv6_getsockopt)(struct sock *sk, int level, int optname,
87 sockptr_t optval, sockptr_t optlen);
88};
89extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
90
91#endif