forked from luck/tmp_suning_uos_patched
51314a17ba
Save namespace context on the fib rule at the rule creation time and call routing lookup in the correct namespace. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
#ifndef __NET_FIB_RULES_H
|
|
#define __NET_FIB_RULES_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/fib_rules.h>
|
|
#include <net/flow.h>
|
|
#include <net/rtnetlink.h>
|
|
|
|
struct fib_rule
|
|
{
|
|
struct list_head list;
|
|
atomic_t refcnt;
|
|
int ifindex;
|
|
char ifname[IFNAMSIZ];
|
|
u32 mark;
|
|
u32 mark_mask;
|
|
u32 pref;
|
|
u32 flags;
|
|
u32 table;
|
|
u8 action;
|
|
u32 target;
|
|
struct fib_rule * ctarget;
|
|
struct rcu_head rcu;
|
|
struct net * fr_net;
|
|
};
|
|
|
|
struct fib_lookup_arg
|
|
{
|
|
void *lookup_ptr;
|
|
void *result;
|
|
struct fib_rule *rule;
|
|
};
|
|
|
|
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 *);
|
|
int (*match)(struct fib_rule *,
|
|
struct flowi *, int);
|
|
int (*configure)(struct fib_rule *,
|
|
struct sk_buff *,
|
|
struct nlmsghdr *,
|
|
struct fib_rule_hdr *,
|
|
struct nlattr **);
|
|
int (*compare)(struct fib_rule *,
|
|
struct fib_rule_hdr *,
|
|
struct nlattr **);
|
|
int (*fill)(struct fib_rule *, struct sk_buff *,
|
|
struct nlmsghdr *,
|
|
struct fib_rule_hdr *);
|
|
u32 (*default_pref)(struct fib_rules_ops *ops);
|
|
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)(void);
|
|
|
|
int nlgroup;
|
|
const struct nla_policy *policy;
|
|
struct list_head rules_list;
|
|
struct module *owner;
|
|
struct net *fro_net;
|
|
};
|
|
|
|
#define FRA_GENERIC_POLICY \
|
|
[FRA_IFNAME] = { .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_GOTO] = { .type = NLA_U32 }
|
|
|
|
static inline void fib_rule_get(struct fib_rule *rule)
|
|
{
|
|
atomic_inc(&rule->refcnt);
|
|
}
|
|
|
|
static inline void fib_rule_put_rcu(struct rcu_head *head)
|
|
{
|
|
struct fib_rule *rule = container_of(head, struct fib_rule, rcu);
|
|
kfree(rule);
|
|
}
|
|
|
|
static inline void fib_rule_put(struct fib_rule *rule)
|
|
{
|
|
if (atomic_dec_and_test(&rule->refcnt))
|
|
call_rcu(&rule->rcu, fib_rule_put_rcu);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
extern int fib_rules_register(struct fib_rules_ops *);
|
|
extern void fib_rules_unregister(struct fib_rules_ops *);
|
|
extern void fib_rules_cleanup_ops(struct fib_rules_ops *);
|
|
|
|
extern int fib_rules_lookup(struct fib_rules_ops *,
|
|
struct flowi *, int flags,
|
|
struct fib_lookup_arg *);
|
|
extern int fib_default_rule_add(struct fib_rules_ops *,
|
|
u32 pref, u32 table,
|
|
u32 flags);
|
|
#endif
|