projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 5d0aa2cc PM |
1 | #ifndef _NF_CONNTRACK_ZONES_H |
| 2 | #define _NF_CONNTRACK_ZONES_H | |
| 3 | ||
| 62da9865 | 4 | #include <linux/netfilter/nf_conntrack_zones_common.h> |
| 308ac914 DB |
5 | |
| 6 | #if IS_ENABLED(CONFIG_NF_CONNTRACK) | |
| 7 | #include <net/netfilter/nf_conntrack_extend.h> | |
| 8 | ||
| 9 | static inline const struct nf_conntrack_zone * | |
| 10 | nf_ct_zone(const struct nf_conn *ct) | |
| 5d0aa2cc PM |
11 | { |
| 12 | #ifdef CONFIG_NF_CONNTRACK_ZONES | |
| 6c8dee98 FW |
13 | return &ct->zone; |
| 14 | #else | |
| 15 | return &nf_ct_zone_dflt; | |
| 5d0aa2cc | 16 | #endif |
| 5d0aa2cc PM |
17 | } |
| 18 | ||
| 308ac914 | 19 | static inline const struct nf_conntrack_zone * |
| 5e8018fc DB |
20 | nf_ct_zone_init(struct nf_conntrack_zone *zone, u16 id, u8 dir, u8 flags) |
| 21 | { | |
| 22 | zone->id = id; | |
| 23 | zone->flags = flags; | |
| 24 | zone->dir = dir; | |
| 25 | ||
| 26 | return zone; | |
| 27 | } | |
| 28 | ||
| 29 | static inline const struct nf_conntrack_zone * | |
| 30 | nf_ct_zone_tmpl(const struct nf_conn *tmpl, const struct sk_buff *skb, | |
| 31 | struct nf_conntrack_zone *tmp) | |
| 32 | { | |
| 6c8dee98 | 33 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 5e8018fc DB |
34 | if (!tmpl) |
| 35 | return &nf_ct_zone_dflt; | |
| 36 | ||
| 6c8dee98 FW |
37 | if (tmpl->zone.flags & NF_CT_FLAG_MARK) |
| 38 | return nf_ct_zone_init(tmp, skb->mark, tmpl->zone.dir, 0); | |
| 39 | #endif | |
| 40 | return nf_ct_zone(tmpl); | |
| 5e8018fc DB |
41 | } |
| 42 | ||
| 6c8dee98 FW |
43 | static inline void nf_ct_zone_add(struct nf_conn *ct, |
| 44 | const struct nf_conntrack_zone *zone) | |
| 308ac914 | 45 | { |
| 5e8018fc | 46 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 6c8dee98 | 47 | ct->zone = *zone; |
| 5e8018fc | 48 | #endif |
| 308ac914 DB |
49 | } |
| 50 | ||
| deedb590 DB |
51 | static inline bool nf_ct_zone_matches_dir(const struct nf_conntrack_zone *zone, |
| 52 | enum ip_conntrack_dir dir) | |
| 53 | { | |
| 54 | return zone->dir & (1 << dir); | |
| 55 | } | |
| 56 | ||
| 57 | static inline u16 nf_ct_zone_id(const struct nf_conntrack_zone *zone, | |
| 58 | enum ip_conntrack_dir dir) | |
| 59 | { | |
| 506e65df | 60 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| deedb590 DB |
61 | return nf_ct_zone_matches_dir(zone, dir) ? |
| 62 | zone->id : NF_CT_DEFAULT_ZONE_ID; | |
| 506e65df FW |
63 | #else |
| 64 | return NF_CT_DEFAULT_ZONE_ID; | |
| 65 | #endif | |
| deedb590 DB |
66 | } |
| 67 | ||
| 308ac914 | 68 | static inline bool nf_ct_zone_equal(const struct nf_conn *a, |
| deedb590 DB |
69 | const struct nf_conntrack_zone *b, |
| 70 | enum ip_conntrack_dir dir) | |
| 71 | { | |
| 506e65df | 72 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| deedb590 DB |
73 | return nf_ct_zone_id(nf_ct_zone(a), dir) == |
| 74 | nf_ct_zone_id(b, dir); | |
| 506e65df FW |
75 | #else |
| 76 | return true; | |
| 77 | #endif | |
| deedb590 DB |
78 | } |
| 79 | ||
| 80 | static inline bool nf_ct_zone_equal_any(const struct nf_conn *a, | |
| 81 | const struct nf_conntrack_zone *b) | |
| 308ac914 | 82 | { |
| 506e65df | 83 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 308ac914 | 84 | return nf_ct_zone(a)->id == b->id; |
| 506e65df FW |
85 | #else |
| 86 | return true; | |
| 87 | #endif | |
| 308ac914 DB |
88 | } |
| 89 | #endif /* IS_ENABLED(CONFIG_NF_CONNTRACK) */ | |
| 5d0aa2cc | 90 | #endif /* _NF_CONNTRACK_ZONES_H */ |