[mirror_ubuntu-eoan-kernel.git] / include / net / ip6_fib.h

/*
 *	Linux INET6 implementation 
 *
 *	Authors:
 *	Pedro Roque		<roque@di.fc.ul.pt>	
 *
 *	This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#ifndef _IP6_FIB_H
#define _IP6_FIB_H

#include <linux/ipv6_route.h>
#include <linux/rtnetlink.h>
#include <linux/spinlock.h>
#include <linux/notifier.h>
#include <net/dst.h>
#include <net/flow.h>
#include <net/netlink.h>
#include <net/inetpeer.h>
#include <net/fib_notifier.h>

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
#define FIB6_TABLE_HASHSZ 256
#else
#define FIB6_TABLE_HASHSZ 1
#endif

struct rt6_info;

struct fib6_config {
	u32		fc_table;
	u32		fc_metric;
	int		fc_dst_len;
	int		fc_src_len;
	int		fc_ifindex;
	u32		fc_flags;
	u32		fc_protocol;
	u16		fc_type;        /* only 8 bits are used */
	u16		fc_delete_all_nh : 1,
			__unused : 15;

	struct in6_addr	fc_dst;
	struct in6_addr	fc_src;
	struct in6_addr	fc_prefsrc;
	struct in6_addr	fc_gateway;

	unsigned long	fc_expires;
	struct nlattr	*fc_mx;
	int		fc_mx_len;
	int		fc_mp_len;
	struct nlattr	*fc_mp;

	struct nl_info	fc_nlinfo;
	struct nlattr	*fc_encap;
	u16		fc_encap_type;
};

struct fib6_node {
	struct fib6_node	*parent;
	struct fib6_node	*left;
	struct fib6_node	*right;
#ifdef CONFIG_IPV6_SUBTREES
	struct fib6_node	*subtree;
#endif
	struct rt6_info		*leaf;

	__u16			fn_bit;		/* bit key */
	__u16			fn_flags;
	int			fn_sernum;
	struct rt6_info		*rr_ptr;
	struct rcu_head		rcu;
};

#ifndef CONFIG_IPV6_SUBTREES
#define FIB6_SUBTREE(fn)	NULL
#else
#define FIB6_SUBTREE(fn)	((fn)->subtree)
#endif

struct mx6_config {
	const u32 *mx;
	DECLARE_BITMAP(mx_valid, RTAX_MAX);
};

/*
 *	routing information
 *
 */

struct rt6key {
	struct in6_addr	addr;
	int		plen;
};

struct fib6_table;

struct rt6_info {
	struct dst_entry		dst;

	/*
	 * Tail elements of dst_entry (__refcnt etc.)
	 * and these elements (rarely used in hot path) are in
	 * the same cache line.
	 */
	struct fib6_table		*rt6i_table;
	struct fib6_node __rcu		*rt6i_node;

	struct in6_addr			rt6i_gateway;

	/* Multipath routes:
	 * siblings is a list of rt6_info that have the the same metric/weight,
	 * destination, but not the same gateway. nsiblings is just a cache
	 * to speed up lookup.
	 */
	struct list_head		rt6i_siblings;
	unsigned int			rt6i_nsiblings;

	atomic_t			rt6i_ref;

	unsigned int			rt6i_nh_flags;

	/* These are in a separate cache line. */
	struct rt6key			rt6i_dst ____cacheline_aligned_in_smp;
	u32				rt6i_flags;
	struct rt6key			rt6i_src;
	struct rt6key			rt6i_prefsrc;

	struct list_head		rt6i_uncached;
	struct uncached_list		*rt6i_uncached_list;

	struct inet6_dev		*rt6i_idev;
	struct rt6_info * __percpu	*rt6i_pcpu;

	u32				rt6i_metric;
	u32				rt6i_pmtu;
	/* more non-fragment space at head required */
	unsigned short			rt6i_nfheader_len;
	u8				rt6i_protocol;
};

static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
{
	return ((struct rt6_info *)dst)->rt6i_idev;
}

static inline void rt6_clean_expires(struct rt6_info *rt)
{
	rt->rt6i_flags &= ~RTF_EXPIRES;
	rt->dst.expires = 0;
}

static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
{
	rt->dst.expires = expires;
	rt->rt6i_flags |= RTF_EXPIRES;
}

static inline void rt6_update_expires(struct rt6_info *rt0, int timeout)
{
	struct rt6_info *rt;

	for (rt = rt0; rt && !(rt->rt6i_flags & RTF_EXPIRES);
	     rt = (struct rt6_info *)rt->dst.from);
	if (rt && rt != rt0)
		rt0->dst.expires = rt->dst.expires;

	dst_set_expires(&rt0->dst, timeout);
	rt0->rt6i_flags |= RTF_EXPIRES;
}

/* Function to safely get fn->sernum for passed in rt
 * and store result in passed in cookie.
 * Return true if we can get cookie safely
 * Return false if not
 */
static inline bool rt6_get_cookie_safe(const struct rt6_info *rt,
				       u32 *cookie)
{
	struct fib6_node *fn;
	bool status = false;

	rcu_read_lock();
	fn = rcu_dereference(rt->rt6i_node);

	if (fn) {
		*cookie = fn->fn_sernum;
		status = true;
	}

	rcu_read_unlock();
	return status;
}

static inline u32 rt6_get_cookie(const struct rt6_info *rt)
{
	u32 cookie = 0;

	if (rt->rt6i_flags & RTF_PCPU ||
	    (unlikely(!list_empty(&rt->rt6i_uncached)) && rt->dst.from))
		rt = (struct rt6_info *)(rt->dst.from);

	rt6_get_cookie_safe(rt, &cookie);

	return cookie;
}

static inline void ip6_rt_put(struct rt6_info *rt)
{
	/* dst_release() accepts a NULL parameter.
	 * We rely on dst being first structure in struct rt6_info
	 */
	BUILD_BUG_ON(offsetof(struct rt6_info, dst) != 0);
	dst_release(&rt->dst);
}

void rt6_free_pcpu(struct rt6_info *non_pcpu_rt);

static inline void rt6_hold(struct rt6_info *rt)
{
	atomic_inc(&rt->rt6i_ref);
}

static inline void rt6_release(struct rt6_info *rt)
{
	if (atomic_dec_and_test(&rt->rt6i_ref)) {
		rt6_free_pcpu(rt);
		dst_dev_put(&rt->dst);
		dst_release(&rt->dst);
	}
}

enum fib6_walk_state {
#ifdef CONFIG_IPV6_SUBTREES
	FWS_S,
#endif
	FWS_L,
	FWS_R,
	FWS_C,
	FWS_U
};

struct fib6_walker {
	struct list_head lh;
	struct fib6_node *root, *node;
	struct rt6_info *leaf;
	enum fib6_walk_state state;
	bool prune;
	unsigned int skip;
	unsigned int count;
	int (*func)(struct fib6_walker *);
	void *args;
};

struct rt6_statistics {
	__u32		fib_nodes;
	__u32		fib_route_nodes;
	__u32		fib_rt_alloc;		/* permanent routes	*/
	__u32		fib_rt_entries;		/* rt entries in table	*/
	__u32		fib_rt_cache;		/* cache routes		*/
	__u32		fib_discarded_routes;
};

#define RTN_TL_ROOT	0x0001
#define RTN_ROOT	0x0002		/* tree root node		*/
#define RTN_RTINFO	0x0004		/* node with valid routing info	*/

/*
 *	priority levels (or metrics)
 *
 */


struct fib6_table {
	struct hlist_node	tb6_hlist;
	u32			tb6_id;
	rwlock_t		tb6_lock;
	struct fib6_node	tb6_root;
	struct inet_peer_base	tb6_peers;
	unsigned int		flags;
	unsigned int		fib_seq;
#define RT6_TABLE_HAS_DFLT_ROUTER	BIT(0)
};

#define RT6_TABLE_UNSPEC	RT_TABLE_UNSPEC
#define RT6_TABLE_MAIN		RT_TABLE_MAIN
#define RT6_TABLE_DFLT		RT6_TABLE_MAIN
#define RT6_TABLE_INFO		RT6_TABLE_MAIN
#define RT6_TABLE_PREFIX	RT6_TABLE_MAIN

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
#define FIB6_TABLE_MIN		1
#define FIB6_TABLE_MAX		RT_TABLE_MAX
#define RT6_TABLE_LOCAL		RT_TABLE_LOCAL
#else
#define FIB6_TABLE_MIN		RT_TABLE_MAIN
#define FIB6_TABLE_MAX		FIB6_TABLE_MIN
#define RT6_TABLE_LOCAL		RT6_TABLE_MAIN
#endif

typedef struct rt6_info *(*pol_lookup_t)(struct net *,
					 struct fib6_table *,
					 struct flowi6 *, int);

struct fib6_entry_notifier_info {
	struct fib_notifier_info info; /* must be first */
	struct rt6_info *rt;
};

/*
 *	exported functions
 */

struct fib6_table *fib6_get_table(struct net *net, u32 id);
struct fib6_table *fib6_new_table(struct net *net, u32 id);
struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
				   int flags, pol_lookup_t lookup);

struct fib6_node *fib6_lookup(struct fib6_node *root,
			      const struct in6_addr *daddr,
			      const struct in6_addr *saddr);

struct fib6_node *fib6_locate(struct fib6_node *root,
			      const struct in6_addr *daddr, int dst_len,
			      const struct in6_addr *saddr, int src_len);

void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
		    void *arg);

int fib6_add(struct fib6_node *root, struct rt6_info *rt,
	     struct nl_info *info, struct mx6_config *mxc,
	     struct netlink_ext_ack *extack);
int fib6_del(struct rt6_info *rt, struct nl_info *info);

void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
		     unsigned int flags);

void fib6_run_gc(unsigned long expires, struct net *net, bool force);

void fib6_gc_cleanup(void);

int fib6_init(void);

int ipv6_route_open(struct inode *inode, struct file *file);

int call_fib6_notifier(struct notifier_block *nb, struct net *net,
		       enum fib_event_type event_type,
		       struct fib_notifier_info *info);
int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
			struct fib_notifier_info *info);

int __net_init fib6_notifier_init(struct net *net);
void __net_exit fib6_notifier_exit(struct net *net);

unsigned int fib6_tables_seq_read(struct net *net);
int fib6_tables_dump(struct net *net, struct notifier_block *nb);

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
int fib6_rules_init(void);
void fib6_rules_cleanup(void);
bool fib6_rule_default(const struct fib_rule *rule);
int fib6_rules_dump(struct net *net, struct notifier_block *nb);
unsigned int fib6_rules_seq_read(struct net *net);
#else
static inline int               fib6_rules_init(void)
{
	return 0;
}
static inline void              fib6_rules_cleanup(void)
{
	return ;
}
static inline bool fib6_rule_default(const struct fib_rule *rule)
{
	return true;
}
static inline int fib6_rules_dump(struct net *net, struct notifier_block *nb)
{
	return 0;
}
static inline unsigned int fib6_rules_seq_read(struct net *net)
{
	return 0;
}
#endif
#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Linux INET6 implementation
	3	*
	4	* Authors:
	5	* Pedro Roque <roque@di.fc.ul.pt>
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License
	9	* as published by the Free Software Foundation; either version
	10	* 2 of the License, or (at your option) any later version.
	11	*/
	12
	13	#ifndef _IP6_FIB_H
	14	#define _IP6_FIB_H
	15
1da177e4	16	#include <linux/ipv6_route.h>
1da177e4 LT	17	#include <linux/rtnetlink.h>
1da177e4 LT	18	#include <linux/spinlock.h>
16ab6d7d	19	#include <linux/notifier.h>
86872cb5 TG	20	#include <net/dst.h>
	21	#include <net/flow.h>
	22	#include <net/netlink.h>
b3419363	23	#include <net/inetpeer.h>
16ab6d7d	24	#include <net/fib_notifier.h>
1da177e4	25
a33bc5c1 NH	26	#ifdef CONFIG_IPV6_MULTIPLE_TABLES
	27	#define FIB6_TABLE_HASHSZ 256
	28	#else
	29	#define FIB6_TABLE_HASHSZ 1
	30	#endif
	31
1da177e4 LT	32	struct rt6_info;
1da177e4 LT	33
fd2c3ef7	34	struct fib6_config {
86872cb5 TG	35	u32 fc_table;
	36	u32 fc_metric;
	37	int fc_dst_len;
	38	int fc_src_len;
	39	int fc_ifindex;
	40	u32 fc_flags;
	41	u32 fc_protocol;
0ae81335 DA	42	u16 fc_type; /* only 8 bits are used */
	43	u16 fc_delete_all_nh : 1,
	44	__unused : 15;
86872cb5 TG	45
	46	struct in6_addr fc_dst;
	47	struct in6_addr fc_src;
c3968a85	48	struct in6_addr fc_prefsrc;
86872cb5 TG	49	struct in6_addr fc_gateway;
	50
	51	unsigned long fc_expires;
	52	struct nlattr *fc_mx;
	53	int fc_mx_len;
51ebd318 ND	54	int fc_mp_len;
51ebd318 ND	55	struct nlattr *fc_mp;
86872cb5 TG	56
86872cb5 TG	57	struct nl_info fc_nlinfo;
19e42e45 RP	58	struct nlattr *fc_encap;
19e42e45 RP	59	u16 fc_encap_type;
86872cb5 TG	60	};
86872cb5 TG	61
fd2c3ef7	62	struct fib6_node {
1da177e4 LT	63	struct fib6_node *parent;
	64	struct fib6_node *left;
	65	struct fib6_node *right;
8bce65b9	66	#ifdef CONFIG_IPV6_SUBTREES
1da177e4	67	struct fib6_node *subtree;
8bce65b9	68	#endif
1da177e4 LT	69	struct rt6_info *leaf;
	70
	71	__u16 fn_bit; /* bit key */
	72	__u16 fn_flags;
42b18706	73	int fn_sernum;
f11e6659	74	struct rt6_info *rr_ptr;
c5cff856	75	struct rcu_head rcu;
1da177e4 LT	76	};
1da177e4 LT	77
7fc33165 YH	78	#ifndef CONFIG_IPV6_SUBTREES
	79	#define FIB6_SUBTREE(fn) NULL
	80	#else
	81	#define FIB6_SUBTREE(fn) ((fn)->subtree)
	82	#endif
1da177e4	83
e715b6d3 FW	84	struct mx6_config {
	85	const u32 *mx;
	86	DECLARE_BITMAP(mx_valid, RTAX_MAX);
	87	};
	88
1da177e4 LT	89	/*
	90	* routing information
	91	*
	92	*/
	93
fd2c3ef7	94	struct rt6key {
1da177e4 LT	95	struct in6_addr addr;
	96	int plen;
	97	};
	98
c71099ac TG	99	struct fib6_table;
c71099ac TG	100
fd2c3ef7	101	struct rt6_info {
d8d1f30b	102	struct dst_entry dst;
1da177e4	103
bd2c77a0 YH	104	/*
	105	* Tail elements of dst_entry (__refcnt etc.)
	106	* and these elements (rarely used in hot path) are in
	107	* the same cache line.
	108	*/
	109	struct fib6_table *rt6i_table;
4e587ea7	110	struct fib6_node __rcu *rt6i_node;
1da177e4 LT	111
1da177e4 LT	112	struct in6_addr rt6i_gateway;
1da177e4	113
51ebd318 ND	114	/* Multipath routes:
	115	* siblings is a list of rt6_info that have the the same metric/weight,
	116	* destination, but not the same gateway. nsiblings is just a cache
	117	* to speed up lookup.
	118	*/
	119	struct list_head rt6i_siblings;
	120	unsigned int rt6i_nsiblings;
	121
bd2c77a0	122	atomic_t rt6i_ref;
a47ed4cd	123
fe400799 IS	124	unsigned int rt6i_nh_flags;
fe400799 IS	125
bd2c77a0 YH	126	/* These are in a separate cache line. */
	127	struct rt6key rt6i_dst ____cacheline_aligned_in_smp;
	128	u32 rt6i_flags;
	129	struct rt6key rt6i_src;
c3968a85	130	struct rt6key rt6i_prefsrc;
b4ce9277	131
8d0b94af MKL	132	struct list_head rt6i_uncached;
	133	struct uncached_list *rt6i_uncached_list;
	134
bd2c77a0	135	struct inet6_dev *rt6i_idev;
d52d3997	136	struct rt6_info * __percpu *rt6i_pcpu;
b4ce9277	137
705f1c86	138	u32 rt6i_metric;
4b32b5ad	139	u32 rt6i_pmtu;
bd2c77a0 YH	140	/* more non-fragment space at head required */
bd2c77a0 YH	141	unsigned short rt6i_nfheader_len;
bd2c77a0	142	u8 rt6i_protocol;
1da177e4 LT	143	};
1da177e4 LT	144
7a3025b1 YH	145	static inline struct inet6_dev ip6_dst_idev(struct dst_entry dst)
	146	{
	147	return ((struct rt6_info *)dst)->rt6i_idev;
	148	}
	149
1716a961 G	150	static inline void rt6_clean_expires(struct rt6_info *rt)
1716a961 G	151	{
1716a961	152	rt->rt6i_flags &= ~RTF_EXPIRES;
01ba16d6	153	rt->dst.expires = 0;
1716a961 G	154	}
	155
	156	static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
	157	{
1716a961	158	rt->dst.expires = expires;
ecd98837	159	rt->rt6i_flags \|= RTF_EXPIRES;
1716a961 G	160	}
1716a961 G	161
ecd98837	162	static inline void rt6_update_expires(struct rt6_info *rt0, int timeout)
1716a961	163	{
ecd98837 YH	164	struct rt6_info *rt;
	165
	166	for (rt = rt0; rt && !(rt->rt6i_flags & RTF_EXPIRES);
	167	rt = (struct rt6_info *)rt->dst.from);
	168	if (rt && rt != rt0)
	169	rt0->dst.expires = rt->dst.expires;
	170
	171	dst_set_expires(&rt0->dst, timeout);
	172	rt0->rt6i_flags \|= RTF_EXPIRES;
1716a961	173	}
b197df4f	174
c5cff856 WW	175	/* Function to safely get fn->sernum for passed in rt
	176	* and store result in passed in cookie.
	177	* Return true if we can get cookie safely
	178	* Return false if not
	179	*/
	180	static inline bool rt6_get_cookie_safe(const struct rt6_info *rt,
	181	u32 *cookie)
	182	{
	183	struct fib6_node *fn;
	184	bool status = false;
	185
	186	rcu_read_lock();
	187	fn = rcu_dereference(rt->rt6i_node);
	188
	189	if (fn) {
	190	*cookie = fn->fn_sernum;
	191	status = true;
	192	}
	193
	194	rcu_read_unlock();
	195	return status;
	196	}
	197
b197df4f MKL	198	static inline u32 rt6_get_cookie(const struct rt6_info *rt)
b197df4f MKL	199	{
c5cff856 WW	200	u32 cookie = 0;
c5cff856 WW	201
02bcf4e0	202	if (rt->rt6i_flags & RTF_PCPU \|\|
a4c2fd7f	203	(unlikely(!list_empty(&rt->rt6i_uncached)) && rt->dst.from))
3da59bd9 MKL	204	rt = (struct rt6_info *)(rt->dst.from);
3da59bd9 MKL	205
c5cff856 WW	206	rt6_get_cookie_safe(rt, &cookie);
	207
	208	return cookie;
b197df4f	209	}
1716a961	210
94e187c0 AW	211	static inline void ip6_rt_put(struct rt6_info *rt)
	212	{
	213	/* dst_release() accepts a NULL parameter.
	214	* We rely on dst being first structure in struct rt6_info
	215	*/
	216	BUILD_BUG_ON(offsetof(struct rt6_info, dst) != 0);
	217	dst_release(&rt->dst);
	218	}
	219
a460aa83 IS	220	void rt6_free_pcpu(struct rt6_info *non_pcpu_rt);
	221
	222	static inline void rt6_hold(struct rt6_info *rt)
	223	{
	224	atomic_inc(&rt->rt6i_ref);
	225	}
	226
	227	static inline void rt6_release(struct rt6_info *rt)
	228	{
	229	if (atomic_dec_and_test(&rt->rt6i_ref)) {
	230	rt6_free_pcpu(rt);
	231	dst_dev_put(&rt->dst);
	232	dst_release(&rt->dst);
	233	}
	234	}
	235
94b2cfe0 HFS	236	enum fib6_walk_state {
	237	#ifdef CONFIG_IPV6_SUBTREES
	238	FWS_S,
	239	#endif
	240	FWS_L,
	241	FWS_R,
	242	FWS_C,
	243	FWS_U
	244	};
	245
	246	struct fib6_walker {
bbef49da	247	struct list_head lh;
1da177e4 LT	248	struct fib6_node root, node;
1da177e4 LT	249	struct rt6_info *leaf;
94b2cfe0 HFS	250	enum fib6_walk_state state;
94b2cfe0 HFS	251	bool prune;
2bec5a36 PM	252	unsigned int skip;
2bec5a36 PM	253	unsigned int count;
94b2cfe0	254	int (func)(struct fib6_walker );
1da177e4 LT	255	void *args;
	256	};
	257
1da177e4 LT	258	struct rt6_statistics {
	259	__u32 fib_nodes;
	260	__u32 fib_route_nodes;
	261	__u32 fib_rt_alloc; /* permanent routes */
	262	__u32 fib_rt_entries; /* rt entries in table */
	263	__u32 fib_rt_cache; /* cache routes */
	264	__u32 fib_discarded_routes;
	265	};
	266
	267	#define RTN_TL_ROOT 0x0001
	268	#define RTN_ROOT 0x0002 /* tree root node */
	269	#define RTN_RTINFO 0x0004 /* node with valid routing info */
	270
	271	/*
	272	* priority levels (or metrics)
	273	*
	274	*/
	275
1da177e4	276
c71099ac TG	277	struct fib6_table {
	278	struct hlist_node tb6_hlist;
	279	u32 tb6_id;
	280	rwlock_t tb6_lock;
	281	struct fib6_node tb6_root;
8e773277	282	struct inet_peer_base tb6_peers;
830218c1	283	unsigned int flags;
e1ee0a5b	284	unsigned int fib_seq;
830218c1	285	#define RT6_TABLE_HAS_DFLT_ROUTER BIT(0)
c71099ac TG	286	};
	287
	288	#define RT6_TABLE_UNSPEC RT_TABLE_UNSPEC
	289	#define RT6_TABLE_MAIN RT_TABLE_MAIN
c71099ac TG	290	#define RT6_TABLE_DFLT RT6_TABLE_MAIN
	291	#define RT6_TABLE_INFO RT6_TABLE_MAIN
	292	#define RT6_TABLE_PREFIX RT6_TABLE_MAIN
	293
	294	#ifdef CONFIG_IPV6_MULTIPLE_TABLES
	295	#define FIB6_TABLE_MIN 1
	296	#define FIB6_TABLE_MAX RT_TABLE_MAX
101367c2	297	#define RT6_TABLE_LOCAL RT_TABLE_LOCAL
c71099ac TG	298	#else
	299	#define FIB6_TABLE_MIN RT_TABLE_MAIN
	300	#define FIB6_TABLE_MAX FIB6_TABLE_MIN
101367c2	301	#define RT6_TABLE_LOCAL RT6_TABLE_MAIN
c71099ac TG	302	#endif
c71099ac TG	303
8ed67789 DL	304	typedef struct rt6_info (pol_lookup_t)(struct net *,
8ed67789 DL	305	struct fib6_table *,
4c9483b2	306	struct flowi6 *, int);
1da177e4	307
df77fe4d IS	308	struct fib6_entry_notifier_info {
	309	struct fib_notifier_info info; /* must be first */
	310	struct rt6_info *rt;
	311	};
	312
1da177e4 LT	313	/*
	314	* exported functions
	315	*/
	316
5c3a0fd7 JP	317	struct fib6_table fib6_get_table(struct net net, u32 id);
	318	struct fib6_table fib6_new_table(struct net net, u32 id);
	319	struct dst_entry fib6_rule_lookup(struct net net, struct flowi6 *fl6,
	320	int flags, pol_lookup_t lookup);
c71099ac	321
5c3a0fd7 JP	322	struct fib6_node fib6_lookup(struct fib6_node root,
	323	const struct in6_addr *daddr,
	324	const struct in6_addr *saddr);
1da177e4	325
5c3a0fd7 JP	326	struct fib6_node fib6_locate(struct fib6_node root,
	327	const struct in6_addr *daddr, int dst_len,
	328	const struct in6_addr *saddr, int src_len);
1da177e4	329
5c3a0fd7	330	void fib6_clean_all(struct net net, int (func)(struct rt6_info , void arg),
0c3584d5	331	void *arg);
c71099ac	332
e715b6d3	333	int fib6_add(struct fib6_node root, struct rt6_info rt,
333c4301 DA	334	struct nl_info info, struct mx6_config mxc,
333c4301 DA	335	struct netlink_ext_ack *extack);
5c3a0fd7	336	int fib6_del(struct rt6_info rt, struct nl_info info);
1da177e4	337
37a1d361 RP	338	void inet6_rt_notify(int event, struct rt6_info rt, struct nl_info info,
37a1d361 RP	339	unsigned int flags);
1da177e4	340
5c3a0fd7	341	void fib6_run_gc(unsigned long expires, struct net *net, bool force);
1da177e4	342
5c3a0fd7	343	void fib6_gc_cleanup(void);
1da177e4	344
5c3a0fd7	345	int fib6_init(void);
101367c2	346
8d2ca1d7 HFS	347	int ipv6_route_open(struct inode inode, struct file file);
8d2ca1d7 HFS	348
16ab6d7d IS	349	int call_fib6_notifier(struct notifier_block nb, struct net net,
	350	enum fib_event_type event_type,
	351	struct fib_notifier_info *info);
	352	int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
	353	struct fib_notifier_info *info);
	354
	355	int __net_init fib6_notifier_init(struct net *net);
	356	void __net_exit fib6_notifier_exit(struct net *net);
	357
e1ee0a5b IS	358	unsigned int fib6_tables_seq_read(struct net *net);
	359	int fib6_tables_dump(struct net net, struct notifier_block nb);
	360
7e5449c2	361	#ifdef CONFIG_IPV6_MULTIPLE_TABLES
5c3a0fd7 JP	362	int fib6_rules_init(void);
5c3a0fd7 JP	363	void fib6_rules_cleanup(void);
e3ea9731	364	bool fib6_rule_default(const struct fib_rule *rule);
dcb18f76 IS	365	int fib6_rules_dump(struct net net, struct notifier_block nb);
dcb18f76 IS	366	unsigned int fib6_rules_seq_read(struct net *net);
7e5449c2 DL	367	#else
	368	static inline int fib6_rules_init(void)
	369	{
	370	return 0;
	371	}
	372	static inline void fib6_rules_cleanup(void)
	373	{
	374	return ;
	375	}
e3ea9731 IS	376	static inline bool fib6_rule_default(const struct fib_rule *rule)
	377	{
	378	return true;
	379	}
dcb18f76 IS	380	static inline int fib6_rules_dump(struct net net, struct notifier_block nb)
	381	{
	382	return 0;
	383	}
	384	static inline unsigned int fib6_rules_seq_read(struct net *net)
	385	{
	386	return 0;
	387	}
7e5449c2	388	#endif
1da177e4	389	#endif