1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _IPV6_STUBS_H 2 #ifndef _IPV6_STUBS_H
3 #define _IPV6_STUBS_H 3 #define _IPV6_STUBS_H
4 4
5 #include <linux/in6.h> 5 #include <linux/in6.h>
6 #include <linux/netdevice.h> 6 #include <linux/netdevice.h>
7 #include <linux/skbuff.h> 7 #include <linux/skbuff.h>
8 #include <net/dst.h> 8 #include <net/dst.h>
9 #include <net/flow.h> 9 #include <net/flow.h>
10 #include <net/neighbour.h> 10 #include <net/neighbour.h>
11 #include <net/sock.h> 11 #include <net/sock.h>
12 #include <net/ipv6.h> <<
13 12
14 /* structs from net/ip6_fib.h */ 13 /* structs from net/ip6_fib.h */
15 struct fib6_info; 14 struct fib6_info;
16 struct fib6_nh; 15 struct fib6_nh;
17 struct fib6_config; 16 struct fib6_config;
18 struct fib6_result; 17 struct fib6_result;
19 18
20 /* This is ugly, ideally these symbols should 19 /* This is ugly, ideally these symbols should be built
21 * into the core kernel. 20 * into the core kernel.
22 */ 21 */
23 struct ipv6_stub { 22 struct ipv6_stub {
24 int (*ipv6_sock_mc_join)(struct sock * 23 int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex,
25 const struct 24 const struct in6_addr *addr);
26 int (*ipv6_sock_mc_drop)(struct sock * 25 int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex,
27 const struct 26 const struct in6_addr *addr);
28 struct dst_entry *(*ipv6_dst_lookup_fl 27 struct dst_entry *(*ipv6_dst_lookup_flow)(struct net *net,
29 28 const struct sock *sk,
30 29 struct flowi6 *fl6,
31 30 const struct in6_addr *final_dst);
32 int (*ipv6_route_input)(struct sk_buff 31 int (*ipv6_route_input)(struct sk_buff *skb);
33 32
34 struct fib6_table *(*fib6_get_table)(s 33 struct fib6_table *(*fib6_get_table)(struct net *net, u32 id);
35 int (*fib6_lookup)(struct net *net, in 34 int (*fib6_lookup)(struct net *net, int oif, struct flowi6 *fl6,
36 struct fib6_result 35 struct fib6_result *res, int flags);
37 int (*fib6_table_lookup)(struct net *n 36 int (*fib6_table_lookup)(struct net *net, struct fib6_table *table,
38 int oif, stru 37 int oif, struct flowi6 *fl6,
39 struct fib6_r 38 struct fib6_result *res, int flags);
40 void (*fib6_select_path)(const struct 39 void (*fib6_select_path)(const struct net *net, struct fib6_result *res,
41 struct flowi6 40 struct flowi6 *fl6, int oif, bool oif_match,
42 const struct 41 const struct sk_buff *skb, int strict);
43 u32 (*ip6_mtu_from_fib6)(const struct 42 u32 (*ip6_mtu_from_fib6)(const struct fib6_result *res,
44 const struct 43 const struct in6_addr *daddr,
45 const struct 44 const struct in6_addr *saddr);
46 45
47 int (*fib6_nh_init)(struct net *net, s 46 int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh,
48 struct fib6_config 47 struct fib6_config *cfg, gfp_t gfp_flags,
49 struct netlink_ext 48 struct netlink_ext_ack *extack);
50 void (*fib6_nh_release)(struct fib6_nh 49 void (*fib6_nh_release)(struct fib6_nh *fib6_nh);
51 void (*fib6_nh_release_dsts)(struct fi 50 void (*fib6_nh_release_dsts)(struct fib6_nh *fib6_nh);
52 void (*fib6_update_sernum)(struct net 51 void (*fib6_update_sernum)(struct net *net, struct fib6_info *rt);
53 int (*ip6_del_rt)(struct net *net, str 52 int (*ip6_del_rt)(struct net *net, struct fib6_info *rt, bool skip_notify);
54 void (*fib6_rt_update)(struct net *net 53 void (*fib6_rt_update)(struct net *net, struct fib6_info *rt,
55 struct nl_info 54 struct nl_info *info);
56 55
57 void (*udpv6_encap_enable)(void); 56 void (*udpv6_encap_enable)(void);
58 void (*ndisc_send_na)(struct net_devic 57 void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
59 const struct in6 58 const struct in6_addr *solicited_addr,
60 bool router, boo 59 bool router, bool solicited, bool override, bool inc_opt);
61 #if IS_ENABLED(CONFIG_XFRM) 60 #if IS_ENABLED(CONFIG_XFRM)
62 void (*xfrm6_local_rxpmtu)(struct sk_b 61 void (*xfrm6_local_rxpmtu)(struct sk_buff *skb, u32 mtu);
63 int (*xfrm6_udp_encap_rcv)(struct sock 62 int (*xfrm6_udp_encap_rcv)(struct sock *sk, struct sk_buff *skb);
64 struct sk_buff *(*xfrm6_gro_udp_encap_ 63 struct sk_buff *(*xfrm6_gro_udp_encap_rcv)(struct sock *sk,
65 64 struct list_head *head,
66 65 struct sk_buff *skb);
67 int (*xfrm6_rcv_encap)(struct sk_buff 66 int (*xfrm6_rcv_encap)(struct sk_buff *skb, int nexthdr, __be32 spi,
68 int encap_type) 67 int encap_type);
69 #endif 68 #endif
70 struct neigh_table *nd_tbl; 69 struct neigh_table *nd_tbl;
71 70
72 int (*ipv6_fragment)(struct net *net, 71 int (*ipv6_fragment)(struct net *net, struct sock *sk, struct sk_buff *skb,
73 int (*output)(str 72 int (*output)(struct net *, struct sock *, struct sk_buff *));
74 struct net_device *(*ipv6_dev_find)(st 73 struct net_device *(*ipv6_dev_find)(struct net *net, const struct in6_addr *addr,
75 st 74 struct net_device *dev);
76 int (*ip6_xmit)(const struct sock *sk, <<
77 __u32 mark, struct ipv <<
78 }; 75 };
79 extern const struct ipv6_stub *ipv6_stub __rea 76 extern const struct ipv6_stub *ipv6_stub __read_mostly;
80 77
81 /* A stub used by bpf helpers. Similarly ugly 78 /* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
82 struct ipv6_bpf_stub { 79 struct ipv6_bpf_stub {
83 int (*inet6_bind)(struct sock *sk, str 80 int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
84 u32 flags); 81 u32 flags);
85 struct sock *(*udp6_lib_lookup)(struct 82 struct sock *(*udp6_lib_lookup)(struct net *net,
86 const str 83 const struct in6_addr *saddr, __be16 sport,
87 const str 84 const struct in6_addr *daddr, __be16 dport,
88 int dif, 85 int dif, int sdif, struct udp_table *tbl,
89 struct sk 86 struct sk_buff *skb);
90 int (*ipv6_setsockopt)(struct sock *sk 87 int (*ipv6_setsockopt)(struct sock *sk, int level, int optname,
91 sockptr_t optva 88 sockptr_t optval, unsigned int optlen);
92 int (*ipv6_getsockopt)(struct sock *sk 89 int (*ipv6_getsockopt)(struct sock *sk, int level, int optname,
93 sockptr_t optva 90 sockptr_t optval, sockptr_t optlen);
94 int (*ipv6_dev_get_saddr)(struct net * 91 int (*ipv6_dev_get_saddr)(struct net *net,
95 const struct 92 const struct net_device *dst_dev,
96 const struct 93 const struct in6_addr *daddr,
97 unsigned int 94 unsigned int prefs,
98 struct in6_a 95 struct in6_addr *saddr);
99 }; 96 };
100 extern const struct ipv6_bpf_stub *ipv6_bpf_st 97 extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
101 98
102 #endif 99 #endif
103 100
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