[linux-block.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;
};

#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		*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;

	/* 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;
}

static inline u32 rt6_get_cookie(const struct rt6_info *rt)
{
	if (rt->rt6i_flags & RTF_PCPU ||
	    (unlikely(!list_empty(&rt->rt6i_uncached)) && rt->dst.from))
		rt = (struct rt6_info *)(rt->dst.from);

	return rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
}

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;
1da177e4 LT	75	};
1da177e4 LT	76
7fc33165 YH	77	#ifndef CONFIG_IPV6_SUBTREES
	78	#define FIB6_SUBTREE(fn) NULL
	79	#else
	80	#define FIB6_SUBTREE(fn) ((fn)->subtree)
	81	#endif
1da177e4	82
e715b6d3 FW	83	struct mx6_config {
	84	const u32 *mx;
	85	DECLARE_BITMAP(mx_valid, RTAX_MAX);
	86	};
	87
1da177e4 LT	88	/*
	89	* routing information
	90	*
	91	*/
	92
fd2c3ef7	93	struct rt6key {
1da177e4 LT	94	struct in6_addr addr;
	95	int plen;
	96	};
	97
c71099ac TG	98	struct fib6_table;
c71099ac TG	99
fd2c3ef7	100	struct rt6_info {
d8d1f30b	101	struct dst_entry dst;
1da177e4	102
bd2c77a0 YH	103	/*
	104	* Tail elements of dst_entry (__refcnt etc.)
	105	* and these elements (rarely used in hot path) are in
	106	* the same cache line.
	107	*/
	108	struct fib6_table *rt6i_table;
1da177e4 LT	109	struct fib6_node *rt6i_node;
	110
	111	struct in6_addr rt6i_gateway;
1da177e4	112
51ebd318 ND	113	/* Multipath routes:
	114	* siblings is a list of rt6_info that have the the same metric/weight,
	115	* destination, but not the same gateway. nsiblings is just a cache
	116	* to speed up lookup.
	117	*/
	118	struct list_head rt6i_siblings;
	119	unsigned int rt6i_nsiblings;
	120
bd2c77a0	121	atomic_t rt6i_ref;
a47ed4cd	122
bd2c77a0 YH	123	/* These are in a separate cache line. */
	124	struct rt6key rt6i_dst ____cacheline_aligned_in_smp;
	125	u32 rt6i_flags;
	126	struct rt6key rt6i_src;
c3968a85	127	struct rt6key rt6i_prefsrc;
b4ce9277	128
8d0b94af MKL	129	struct list_head rt6i_uncached;
	130	struct uncached_list *rt6i_uncached_list;
	131
bd2c77a0	132	struct inet6_dev *rt6i_idev;
d52d3997	133	struct rt6_info * __percpu *rt6i_pcpu;
b4ce9277	134
705f1c86	135	u32 rt6i_metric;
4b32b5ad	136	u32 rt6i_pmtu;
bd2c77a0 YH	137	/* more non-fragment space at head required */
bd2c77a0 YH	138	unsigned short rt6i_nfheader_len;
bd2c77a0	139	u8 rt6i_protocol;
1da177e4 LT	140	};
1da177e4 LT	141
7a3025b1 YH	142	static inline struct inet6_dev ip6_dst_idev(struct dst_entry dst)
	143	{
	144	return ((struct rt6_info *)dst)->rt6i_idev;
	145	}
	146
1716a961 G	147	static inline void rt6_clean_expires(struct rt6_info *rt)
1716a961 G	148	{
1716a961	149	rt->rt6i_flags &= ~RTF_EXPIRES;
01ba16d6	150	rt->dst.expires = 0;
1716a961 G	151	}
	152
	153	static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
	154	{
1716a961	155	rt->dst.expires = expires;
ecd98837	156	rt->rt6i_flags \|= RTF_EXPIRES;
1716a961 G	157	}
1716a961 G	158
ecd98837	159	static inline void rt6_update_expires(struct rt6_info *rt0, int timeout)
1716a961	160	{
ecd98837 YH	161	struct rt6_info *rt;
	162
	163	for (rt = rt0; rt && !(rt->rt6i_flags & RTF_EXPIRES);
	164	rt = (struct rt6_info *)rt->dst.from);
	165	if (rt && rt != rt0)
	166	rt0->dst.expires = rt->dst.expires;
	167
	168	dst_set_expires(&rt0->dst, timeout);
	169	rt0->rt6i_flags \|= RTF_EXPIRES;
1716a961	170	}
b197df4f MKL	171
	172	static inline u32 rt6_get_cookie(const struct rt6_info *rt)
	173	{
02bcf4e0	174	if (rt->rt6i_flags & RTF_PCPU \|\|
a4c2fd7f	175	(unlikely(!list_empty(&rt->rt6i_uncached)) && rt->dst.from))
3da59bd9 MKL	176	rt = (struct rt6_info *)(rt->dst.from);
3da59bd9 MKL	177
b197df4f MKL	178	return rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
b197df4f MKL	179	}
1716a961	180
94e187c0 AW	181	static inline void ip6_rt_put(struct rt6_info *rt)
	182	{
	183	/* dst_release() accepts a NULL parameter.
	184	* We rely on dst being first structure in struct rt6_info
	185	*/
	186	BUILD_BUG_ON(offsetof(struct rt6_info, dst) != 0);
	187	dst_release(&rt->dst);
	188	}
	189
a460aa83 IS	190	void rt6_free_pcpu(struct rt6_info *non_pcpu_rt);
	191
	192	static inline void rt6_hold(struct rt6_info *rt)
	193	{
	194	atomic_inc(&rt->rt6i_ref);
	195	}
	196
	197	static inline void rt6_release(struct rt6_info *rt)
	198	{
	199	if (atomic_dec_and_test(&rt->rt6i_ref)) {
	200	rt6_free_pcpu(rt);
	201	dst_dev_put(&rt->dst);
	202	dst_release(&rt->dst);
	203	}
	204	}
	205
94b2cfe0 HFS	206	enum fib6_walk_state {
	207	#ifdef CONFIG_IPV6_SUBTREES
	208	FWS_S,
	209	#endif
	210	FWS_L,
	211	FWS_R,
	212	FWS_C,
	213	FWS_U
	214	};
	215
	216	struct fib6_walker {
bbef49da	217	struct list_head lh;
1da177e4 LT	218	struct fib6_node root, node;
1da177e4 LT	219	struct rt6_info *leaf;
94b2cfe0 HFS	220	enum fib6_walk_state state;
94b2cfe0 HFS	221	bool prune;
2bec5a36 PM	222	unsigned int skip;
2bec5a36 PM	223	unsigned int count;
94b2cfe0	224	int (func)(struct fib6_walker );
1da177e4 LT	225	void *args;
	226	};
	227
1da177e4 LT	228	struct rt6_statistics {
	229	__u32 fib_nodes;
	230	__u32 fib_route_nodes;
	231	__u32 fib_rt_alloc; /* permanent routes */
	232	__u32 fib_rt_entries; /* rt entries in table */
	233	__u32 fib_rt_cache; /* cache routes */
	234	__u32 fib_discarded_routes;
	235	};
	236
	237	#define RTN_TL_ROOT 0x0001
	238	#define RTN_ROOT 0x0002 /* tree root node */
	239	#define RTN_RTINFO 0x0004 /* node with valid routing info */
	240
	241	/*
	242	* priority levels (or metrics)
	243	*
	244	*/
	245
1da177e4	246
c71099ac TG	247	struct fib6_table {
	248	struct hlist_node tb6_hlist;
	249	u32 tb6_id;
	250	rwlock_t tb6_lock;
	251	struct fib6_node tb6_root;
8e773277	252	struct inet_peer_base tb6_peers;
830218c1	253	unsigned int flags;
e1ee0a5b	254	unsigned int fib_seq;
830218c1	255	#define RT6_TABLE_HAS_DFLT_ROUTER BIT(0)
c71099ac TG	256	};
	257
	258	#define RT6_TABLE_UNSPEC RT_TABLE_UNSPEC
	259	#define RT6_TABLE_MAIN RT_TABLE_MAIN
c71099ac TG	260	#define RT6_TABLE_DFLT RT6_TABLE_MAIN
	261	#define RT6_TABLE_INFO RT6_TABLE_MAIN
	262	#define RT6_TABLE_PREFIX RT6_TABLE_MAIN
	263
	264	#ifdef CONFIG_IPV6_MULTIPLE_TABLES
	265	#define FIB6_TABLE_MIN 1
	266	#define FIB6_TABLE_MAX RT_TABLE_MAX
101367c2	267	#define RT6_TABLE_LOCAL RT_TABLE_LOCAL
c71099ac TG	268	#else
	269	#define FIB6_TABLE_MIN RT_TABLE_MAIN
	270	#define FIB6_TABLE_MAX FIB6_TABLE_MIN
101367c2	271	#define RT6_TABLE_LOCAL RT6_TABLE_MAIN
c71099ac TG	272	#endif
c71099ac TG	273
8ed67789 DL	274	typedef struct rt6_info (pol_lookup_t)(struct net *,
8ed67789 DL	275	struct fib6_table *,
4c9483b2	276	struct flowi6 *, int);
1da177e4	277
df77fe4d IS	278	struct fib6_entry_notifier_info {
	279	struct fib_notifier_info info; /* must be first */
	280	struct rt6_info *rt;
	281	};
	282
1da177e4 LT	283	/*
	284	* exported functions
	285	*/
	286
5c3a0fd7 JP	287	struct fib6_table fib6_get_table(struct net net, u32 id);
	288	struct fib6_table fib6_new_table(struct net net, u32 id);
	289	struct dst_entry fib6_rule_lookup(struct net net, struct flowi6 *fl6,
	290	int flags, pol_lookup_t lookup);
c71099ac	291
5c3a0fd7 JP	292	struct fib6_node fib6_lookup(struct fib6_node root,
	293	const struct in6_addr *daddr,
	294	const struct in6_addr *saddr);
1da177e4	295
5c3a0fd7 JP	296	struct fib6_node fib6_locate(struct fib6_node root,
	297	const struct in6_addr *daddr, int dst_len,
	298	const struct in6_addr *saddr, int src_len);
1da177e4	299
5c3a0fd7	300	void fib6_clean_all(struct net net, int (func)(struct rt6_info , void arg),
0c3584d5	301	void *arg);
c71099ac	302
e715b6d3	303	int fib6_add(struct fib6_node root, struct rt6_info rt,
333c4301 DA	304	struct nl_info info, struct mx6_config mxc,
333c4301 DA	305	struct netlink_ext_ack *extack);
5c3a0fd7	306	int fib6_del(struct rt6_info rt, struct nl_info info);
1da177e4	307
37a1d361 RP	308	void inet6_rt_notify(int event, struct rt6_info rt, struct nl_info info,
37a1d361 RP	309	unsigned int flags);
1da177e4	310
5c3a0fd7	311	void fib6_run_gc(unsigned long expires, struct net *net, bool force);
1da177e4	312
5c3a0fd7	313	void fib6_gc_cleanup(void);
1da177e4	314
5c3a0fd7	315	int fib6_init(void);
101367c2	316
8d2ca1d7 HFS	317	int ipv6_route_open(struct inode inode, struct file file);
8d2ca1d7 HFS	318
16ab6d7d IS	319	int call_fib6_notifier(struct notifier_block nb, struct net net,
	320	enum fib_event_type event_type,
	321	struct fib_notifier_info *info);
	322	int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
	323	struct fib_notifier_info *info);
	324
	325	int __net_init fib6_notifier_init(struct net *net);
	326	void __net_exit fib6_notifier_exit(struct net *net);
	327
e1ee0a5b IS	328	unsigned int fib6_tables_seq_read(struct net *net);
	329	int fib6_tables_dump(struct net net, struct notifier_block nb);
	330
7e5449c2	331	#ifdef CONFIG_IPV6_MULTIPLE_TABLES
5c3a0fd7 JP	332	int fib6_rules_init(void);
5c3a0fd7 JP	333	void fib6_rules_cleanup(void);
e3ea9731	334	bool fib6_rule_default(const struct fib_rule *rule);
dcb18f76 IS	335	int fib6_rules_dump(struct net net, struct notifier_block nb);
dcb18f76 IS	336	unsigned int fib6_rules_seq_read(struct net *net);
7e5449c2 DL	337	#else
	338	static inline int fib6_rules_init(void)
	339	{
	340	return 0;
	341	}
	342	static inline void fib6_rules_cleanup(void)
	343	{
	344	return ;
	345	}
e3ea9731 IS	346	static inline bool fib6_rule_default(const struct fib_rule *rule)
	347	{
	348	return true;
	349	}
dcb18f76 IS	350	static inline int fib6_rules_dump(struct net net, struct notifier_block nb)
	351	{
	352	return 0;
	353	}
	354	static inline unsigned int fib6_rules_seq_read(struct net *net)
	355	{
	356	return 0;
	357	}
7e5449c2	358	#endif
1da177e4	359	#endif