mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-03 03:46:51 +07:00
121 lines
2.4 KiB
C
121 lines
2.4 KiB
C
/*
|
|
*
|
|
* Generic internet FLOW.
|
|
*
|
|
*/
|
|
|
|
#ifndef _NET_FLOW_H
|
|
#define _NET_FLOW_H
|
|
|
|
#include <linux/in6.h>
|
|
#include <asm/atomic.h>
|
|
|
|
struct flowi {
|
|
int oif;
|
|
int iif;
|
|
__u32 mark;
|
|
|
|
union {
|
|
struct {
|
|
__be32 daddr;
|
|
__be32 saddr;
|
|
__u8 tos;
|
|
__u8 scope;
|
|
} ip4_u;
|
|
|
|
struct {
|
|
struct in6_addr daddr;
|
|
struct in6_addr saddr;
|
|
__be32 flowlabel;
|
|
} ip6_u;
|
|
|
|
struct {
|
|
__le16 daddr;
|
|
__le16 saddr;
|
|
__u8 scope;
|
|
} dn_u;
|
|
} nl_u;
|
|
#define fld_dst nl_u.dn_u.daddr
|
|
#define fld_src nl_u.dn_u.saddr
|
|
#define fld_scope nl_u.dn_u.scope
|
|
#define fl6_dst nl_u.ip6_u.daddr
|
|
#define fl6_src nl_u.ip6_u.saddr
|
|
#define fl6_flowlabel nl_u.ip6_u.flowlabel
|
|
#define fl4_dst nl_u.ip4_u.daddr
|
|
#define fl4_src nl_u.ip4_u.saddr
|
|
#define fl4_tos nl_u.ip4_u.tos
|
|
#define fl4_scope nl_u.ip4_u.scope
|
|
|
|
__u8 proto;
|
|
__u8 flags;
|
|
#define FLOWI_FLAG_ANYSRC 0x01
|
|
union {
|
|
struct {
|
|
__be16 sport;
|
|
__be16 dport;
|
|
} ports;
|
|
|
|
struct {
|
|
__u8 type;
|
|
__u8 code;
|
|
} icmpt;
|
|
|
|
struct {
|
|
__le16 sport;
|
|
__le16 dport;
|
|
} dnports;
|
|
|
|
__be32 spi;
|
|
__be32 gre_key;
|
|
|
|
struct {
|
|
__u8 type;
|
|
} mht;
|
|
} uli_u;
|
|
#define fl_ip_sport uli_u.ports.sport
|
|
#define fl_ip_dport uli_u.ports.dport
|
|
#define fl_icmp_type uli_u.icmpt.type
|
|
#define fl_icmp_code uli_u.icmpt.code
|
|
#define fl_ipsec_spi uli_u.spi
|
|
#define fl_mh_type uli_u.mht.type
|
|
#define fl_gre_key uli_u.gre_key
|
|
__u32 secid; /* used by xfrm; see secid.txt */
|
|
} __attribute__((__aligned__(BITS_PER_LONG/8)));
|
|
|
|
#define FLOW_DIR_IN 0
|
|
#define FLOW_DIR_OUT 1
|
|
#define FLOW_DIR_FWD 2
|
|
|
|
struct net;
|
|
struct sock;
|
|
struct flow_cache_ops;
|
|
|
|
struct flow_cache_object {
|
|
const struct flow_cache_ops *ops;
|
|
};
|
|
|
|
struct flow_cache_ops {
|
|
struct flow_cache_object *(*get)(struct flow_cache_object *);
|
|
int (*check)(struct flow_cache_object *);
|
|
void (*delete)(struct flow_cache_object *);
|
|
};
|
|
|
|
typedef struct flow_cache_object *(*flow_resolve_t)(
|
|
struct net *net, struct flowi *key, u16 family,
|
|
u8 dir, struct flow_cache_object *oldobj, void *ctx);
|
|
|
|
extern struct flow_cache_object *flow_cache_lookup(
|
|
struct net *net, struct flowi *key, u16 family,
|
|
u8 dir, flow_resolve_t resolver, void *ctx);
|
|
|
|
extern void flow_cache_flush(void);
|
|
extern atomic_t flow_cache_genid;
|
|
|
|
static inline int flow_cache_uli_match(struct flowi *fl1, struct flowi *fl2)
|
|
{
|
|
return (fl1->proto == fl2->proto &&
|
|
!memcmp(&fl1->uli_u, &fl2->uli_u, sizeof(fl1->uli_u)));
|
|
}
|
|
|
|
#endif
|