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IPVS: Add struct ip_vs_pe

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Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Julian Anastasov <ja@ssi.bg>
This commit is contained in:
Simon Horman
2010-08-22 21:37:53 +09:00
parent 2fabf35bfc
commit 85999283a2
5 changed files with 129 additions and 21 deletions
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28
include/net/ip_vs.h
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@ -364,6 +364,10 @@ struct ip_vs_conn_param {
__be16 vport;
__u16 protocol;
u16 af;
const struct ip_vs_pe *pe;
char *pe_data;
__u8 pe_data_len;
};
/*
@ -416,6 +420,9 @@ struct ip_vs_conn {
void *app_data; /* Application private data */
struct ip_vs_seq in_seq; /* incoming seq. struct */
struct ip_vs_seq out_seq; /* outgoing seq. struct */
char *pe_data;
__u8 pe_data_len;
};
@ -486,6 +493,9 @@ struct ip_vs_service {
struct ip_vs_scheduler *scheduler; /* bound scheduler object */
rwlock_t sched_lock; /* lock sched_data */
void *sched_data; /* scheduler application data */
/* alternate persistence engine */
struct ip_vs_pe *pe;
};
@ -549,6 +559,20 @@ struct ip_vs_scheduler {
const struct sk_buff *skb);
};
/* The persistence engine object */
struct ip_vs_pe {
struct list_head n_list; /* d-linked list head */
char *name; /* scheduler name */
atomic_t refcnt; /* reference counter */
struct module *module; /* THIS_MODULE/NULL */
/* get the connection template, if any */
int (*fill_param)(struct ip_vs_conn_param *p, struct sk_buff *skb);
bool (*ct_match)(const struct ip_vs_conn_param *p,
struct ip_vs_conn *ct);
u32 (*hashkey_raw)(const struct ip_vs_conn_param *p, u32 initval,
bool inverse);
};
/*
* The application module object (a.k.a. app incarnation)
@ -648,6 +672,8 @@ static inline void ip_vs_conn_fill_param(int af, int protocol,
p->cport = cport;
p->vaddr = vaddr;
p->vport = vport;
p->pe = NULL;
p->pe_data = NULL;
}
struct ip_vs_conn *ip_vs_conn_in_get(const struct ip_vs_conn_param *p);
@ -803,7 +829,7 @@ extern int ip_vs_unbind_scheduler(struct ip_vs_service *svc);
extern struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name);
extern void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler);
extern struct ip_vs_conn *
ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb);
ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb);
extern int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
struct ip_vs_protocol *pp);