Release 4.12 include/net/fib_rules.h

#ifndef __NET_FIB_RULES_H

#define __NET_FIB_RULES_H

#include <linux/types.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <linux/fib_rules.h>
#include <net/flow.h>
#include <net/rtnetlink.h>


struct fib_kuid_range {
	
kuid_t start;
	
kuid_t end;
};


struct fib_rule {
	
struct list_head	list;
	
int			iifindex;
	
int			oifindex;
	
u32			mark;
	
u32			mark_mask;
	
u32			flags;
	
u32			table;
	
u8			action;
	
u8			l3mdev;
	/* 2 bytes hole, try to use */
	
u32			target;
	
__be64			tun_id;
	
struct fib_rule __rcu	*ctarget;
	
struct net		*fr_net;

	
atomic_t		refcnt;
	
u32			pref;
	
int			suppress_ifgroup;
	
int			suppress_prefixlen;
	
char			iifname[IFNAMSIZ];
	
char			oifname[IFNAMSIZ];
	
struct fib_kuid_range	uid_range;
	
struct rcu_head		rcu;
};


struct fib_lookup_arg {
	
void			*lookup_ptr;
	
void			*result;
	
struct fib_rule		*rule;
	
u32			table;
	
int			flags;

#define FIB_LOOKUP_NOREF		1

#define FIB_LOOKUP_IGNORE_LINKSTATE	2
};


struct fib_rules_ops {
	
int			family;
	
struct list_head	list;
	
int			rule_size;
	
int			addr_size;
	
int			unresolved_rules;
	
int			nr_goto_rules;

	
int			(*action)(struct fib_rule *,
					  struct flowi *, int,
					  struct fib_lookup_arg *);
	
bool			(*suppress)(struct fib_rule *,
					    struct fib_lookup_arg *);
	
int			(*match)(struct fib_rule *,
					 struct flowi *, int);
	
int			(*configure)(struct fib_rule *,
					     struct sk_buff *,
					     struct fib_rule_hdr *,
					     struct nlattr **);
	
int			(*delete)(struct fib_rule *);
	
int			(*compare)(struct fib_rule *,
					   struct fib_rule_hdr *,
					   struct nlattr **);
	
int			(*fill)(struct fib_rule *, struct sk_buff *,
					struct fib_rule_hdr *);
	
size_t			(*nlmsg_payload)(struct fib_rule *);

	/* Called after modifications to the rules set, must flush
         * the route cache if one exists. */
	
void			(*flush_cache)(struct fib_rules_ops *ops);

	
int			nlgroup;
	
const struct nla_policy	*policy;
	
struct list_head	rules_list;
	
struct module		*owner;
	
struct net		*fro_net;
	
struct rcu_head		rcu;
};


#define FRA_GENERIC_POLICY \
	[FRA_IIFNAME]   = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
        [FRA_OIFNAME]   = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
        [FRA_PRIORITY]  = { .type = NLA_U32 }, \
        [FRA_FWMARK]    = { .type = NLA_U32 }, \
        [FRA_FWMASK]    = { .type = NLA_U32 }, \
        [FRA_TABLE]     = { .type = NLA_U32 }, \
        [FRA_SUPPRESS_PREFIXLEN] = { .type = NLA_U32 }, \
        [FRA_SUPPRESS_IFGROUP] = { .type = NLA_U32 }, \
        [FRA_GOTO]      = { .type = NLA_U32 }, \
        [FRA_L3MDEV]    = { .type = NLA_U8 }, \
        [FRA_UID_RANGE] = { .len = sizeof(struct fib_rule_uid_range) }



static inline void fib_rule_get(struct fib_rule *rule)
{
	atomic_inc(&rule->refcnt);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
20
100.00%
1
100.00%
Total
20
100.00%
1
100.00%



static inline void fib_rule_put(struct fib_rule *rule)
{
	if (atomic_dec_and_test(&rule->refcnt))
		kfree_rcu(rule, rcu);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
27
93.10%
1
50.00%
Eric W. Biedermann
2
6.90%
1
50.00%
Total
29
100.00%
2
100.00%

#ifdef CONFIG_NET_L3_MASTER_DEV


static inline u32 fib_rule_get_table(struct fib_rule *rule,
				     struct fib_lookup_arg *arg)
{
	return rule->l3mdev ? arg->table : rule->table;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
David Ahern
30
100.00%
1
100.00%
Total
30
100.00%
1
100.00%

#else


static inline u32 fib_rule_get_table(struct fib_rule *rule,
				     struct fib_lookup_arg *arg)
{
	return rule->table;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
David Ahern
22
100.00%
1
100.00%
Total
22
100.00%
1
100.00%

#endif



static inline u32 frh_get_table(struct fib_rule_hdr *frh, struct nlattr **nla)
{
	if (nla[FRA_TABLE])
		return nla_get_u32(nla[FRA_TABLE]);
	return frh->table;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
39
100.00%
1
100.00%
Total
39
100.00%
1
100.00%

struct fib_rules_ops *fib_rules_register(const struct fib_rules_ops *,
					 struct net *);
void fib_rules_unregister(struct fib_rules_ops *);

int fib_rules_lookup(struct fib_rules_ops *, struct flowi *, int flags,
		     struct fib_lookup_arg *);
int fib_default_rule_add(struct fib_rules_ops *, u32 pref, u32 table,
			 u32 flags);
bool fib_rule_matchall(const struct fib_rule *rule);

int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
		   struct netlink_ext_ack *extack);
int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr *nlh,
		   struct netlink_ext_ack *extack);
#endif
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
328
53.51%
9
27.27%
David Ahern
104
16.97%
2
6.06%
Patrick McHardy
57
9.30%
6
18.18%
Denis V. Lunev
27
4.40%
4
12.12%
Eric Dumazet
25
4.08%
3
9.09%
Lorenzo Colitti
16
2.61%
1
3.03%
Stefan Tomanek
15
2.45%
1
3.03%
Eric W. Biedermann
13
2.12%
2
6.06%
Ido Schimmel
10
1.63%
1
3.03%
David S. Miller
10
1.63%
1
3.03%
Andy Gospodarek
4
0.65%
1
3.03%
Tejun Heo
3
0.49%
1
3.03%
Alexander Duyck
1
0.16%
1
3.03%
Total
613
100.00%
33
100.00%
Directory: include/net

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.