swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
Tip revision: 3eab887a55424fc2c27553b7bfe32330df83f7b8 authored by Linus Torvalds on 28 August 2016, 22:04:33 UTC
Linux 4.8-rc4
Linux 4.8-rc4
Tip revision: 3eab887
nf_conntrack_zones.h
#ifndef _NF_CONNTRACK_ZONES_H
#define _NF_CONNTRACK_ZONES_H
#include <linux/netfilter/nf_conntrack_zones_common.h>
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
#include <net/netfilter/nf_conntrack_extend.h>
static inline const struct nf_conntrack_zone *
nf_ct_zone(const struct nf_conn *ct)
{
#ifdef CONFIG_NF_CONNTRACK_ZONES
return &ct->zone;
#else
return &nf_ct_zone_dflt;
#endif
}
static inline const struct nf_conntrack_zone *
nf_ct_zone_init(struct nf_conntrack_zone *zone, u16 id, u8 dir, u8 flags)
{
zone->id = id;
zone->flags = flags;
zone->dir = dir;
return zone;
}
static inline const struct nf_conntrack_zone *
nf_ct_zone_tmpl(const struct nf_conn *tmpl, const struct sk_buff *skb,
struct nf_conntrack_zone *tmp)
{
#ifdef CONFIG_NF_CONNTRACK_ZONES
if (!tmpl)
return &nf_ct_zone_dflt;
if (tmpl->zone.flags & NF_CT_FLAG_MARK)
return nf_ct_zone_init(tmp, skb->mark, tmpl->zone.dir, 0);
#endif
return nf_ct_zone(tmpl);
}
static inline void nf_ct_zone_add(struct nf_conn *ct,
const struct nf_conntrack_zone *zone)
{
#ifdef CONFIG_NF_CONNTRACK_ZONES
ct->zone = *zone;
#endif
}
static inline bool nf_ct_zone_matches_dir(const struct nf_conntrack_zone *zone,
enum ip_conntrack_dir dir)
{
return zone->dir & (1 << dir);
}
static inline u16 nf_ct_zone_id(const struct nf_conntrack_zone *zone,
enum ip_conntrack_dir dir)
{
#ifdef CONFIG_NF_CONNTRACK_ZONES
return nf_ct_zone_matches_dir(zone, dir) ?
zone->id : NF_CT_DEFAULT_ZONE_ID;
#else
return NF_CT_DEFAULT_ZONE_ID;
#endif
}
static inline bool nf_ct_zone_equal(const struct nf_conn *a,
const struct nf_conntrack_zone *b,
enum ip_conntrack_dir dir)
{
#ifdef CONFIG_NF_CONNTRACK_ZONES
return nf_ct_zone_id(nf_ct_zone(a), dir) ==
nf_ct_zone_id(b, dir);
#else
return true;
#endif
}
static inline bool nf_ct_zone_equal_any(const struct nf_conn *a,
const struct nf_conntrack_zone *b)
{
#ifdef CONFIG_NF_CONNTRACK_ZONES
return nf_ct_zone(a)->id == b->id;
#else
return true;
#endif
}
#endif /* IS_ENABLED(CONFIG_NF_CONNTRACK) */
#endif /* _NF_CONNTRACK_ZONES_H */