[mirror_ubuntu-focal-kernel.git] / include / net / ipv6_stubs.h

/* 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);
	int (*ipv6_dst_lookup)(struct net *net, struct sock *sk,
			       struct dst_entry **dst, struct flowi6 *fl6);
	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_update_sernum)(struct net *net, struct fib6_info *rt);
	int (*ip6_del_rt)(struct net *net, struct fib6_info *rt);
	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);
	struct neigh_table *nd_tbl;
};
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,
			  bool force_bind_address_no_port, bool with_lock);
	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);
};
extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;

#endif
Commit	Line	Data
3616d08b DA	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;
1aefd3de DA	15	struct fib6_nh;
1aefd3de DA	16	struct fib6_config;
b1d40991	17	struct fib6_result;
3616d08b DA	18
	19	/* This is ugly, ideally these symbols should be built
	20	* into the core kernel.
	21	*/
	22	struct 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);
effda4dd DA	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);
b1d40991 DA	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);
b748f260 DA	40	u32 (ip6_mtu_from_fib6)(const struct fib6_result res,
	41	const struct in6_addr *daddr,
	42	const struct in6_addr *saddr);
3616d08b	43
1aefd3de DA	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);
cdaa16a4	48	void (fib6_update_sernum)(struct net net, struct fib6_info *rt);
68a9b13d	49	int (ip6_del_rt)(struct net net, struct fib6_info *rt);
19a3b7ee DA	50	void (fib6_rt_update)(struct net net, struct fib6_info *rt,
	51	struct nl_info *info);
	52
3616d08b DA	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	};
	59	extern const struct ipv6_stub *ipv6_stub __read_mostly;
	60
	61	/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
	62	struct 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	};
	71	extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
	72
	73	#endif