projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 5d0aa2cc PM |
2 | #ifndef _NF_CONNTRACK_ZONES_H |
| 3 | #define _NF_CONNTRACK_ZONES_H | |
| 4 | ||
| 62da9865 | 5 | #include <linux/netfilter/nf_conntrack_zones_common.h> |
| 40d102cd | 6 | #include <net/netfilter/nf_conntrack.h> |
| 308ac914 DB |
7 | |
| 8 | static inline const struct nf_conntrack_zone * | |
| 9 | nf_ct_zone(const struct nf_conn *ct) | |
| 5d0aa2cc PM |
10 | { |
| 11 | #ifdef CONFIG_NF_CONNTRACK_ZONES | |
| 6c8dee98 FW |
12 | return &ct->zone; |
| 13 | #else | |
| 14 | return &nf_ct_zone_dflt; | |
| 5d0aa2cc | 15 | #endif |
| 5d0aa2cc PM |
16 | } |
| 17 | ||
| 308ac914 | 18 | static inline const struct nf_conntrack_zone * |
| 5e8018fc DB |
19 | nf_ct_zone_init(struct nf_conntrack_zone *zone, u16 id, u8 dir, u8 flags) |
| 20 | { | |
| 21 | zone->id = id; | |
| 22 | zone->flags = flags; | |
| 23 | zone->dir = dir; | |
| 24 | ||
| 25 | return zone; | |
| 26 | } | |
| 27 | ||
| 28 | static inline const struct nf_conntrack_zone * | |
| 29 | nf_ct_zone_tmpl(const struct nf_conn *tmpl, const struct sk_buff *skb, | |
| 30 | struct nf_conntrack_zone *tmp) | |
| 31 | { | |
| 6c8dee98 | 32 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 5e8018fc DB |
33 | if (!tmpl) |
| 34 | return &nf_ct_zone_dflt; | |
| 35 | ||
| 6c8dee98 FW |
36 | if (tmpl->zone.flags & NF_CT_FLAG_MARK) |
| 37 | return nf_ct_zone_init(tmp, skb->mark, tmpl->zone.dir, 0); | |
| 38 | #endif | |
| 39 | return nf_ct_zone(tmpl); | |
| 5e8018fc DB |
40 | } |
| 41 | ||
| 6c8dee98 FW |
42 | static inline void nf_ct_zone_add(struct nf_conn *ct, |
| 43 | const struct nf_conntrack_zone *zone) | |
| 308ac914 | 44 | { |
| 5e8018fc | 45 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 6c8dee98 | 46 | ct->zone = *zone; |
| 5e8018fc | 47 | #endif |
| 308ac914 DB |
48 | } |
| 49 | ||
| deedb590 DB |
50 | static inline bool nf_ct_zone_matches_dir(const struct nf_conntrack_zone *zone, |
| 51 | enum ip_conntrack_dir dir) | |
| 52 | { | |
| 53 | return zone->dir & (1 << dir); | |
| 54 | } | |
| 55 | ||
| 56 | static inline u16 nf_ct_zone_id(const struct nf_conntrack_zone *zone, | |
| 57 | enum ip_conntrack_dir dir) | |
| 58 | { | |
| 506e65df | 59 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| deedb590 DB |
60 | return nf_ct_zone_matches_dir(zone, dir) ? |
| 61 | zone->id : NF_CT_DEFAULT_ZONE_ID; | |
| 506e65df FW |
62 | #else |
| 63 | return NF_CT_DEFAULT_ZONE_ID; | |
| 64 | #endif | |
| deedb590 DB |
65 | } |
| 66 | ||
| 308ac914 | 67 | static inline bool nf_ct_zone_equal(const struct nf_conn *a, |
| deedb590 DB |
68 | const struct nf_conntrack_zone *b, |
| 69 | enum ip_conntrack_dir dir) | |
| 70 | { | |
| 506e65df | 71 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| deedb590 DB |
72 | return nf_ct_zone_id(nf_ct_zone(a), dir) == |
| 73 | nf_ct_zone_id(b, dir); | |
| 506e65df FW |
74 | #else |
| 75 | return true; | |
| 76 | #endif | |
| deedb590 DB |
77 | } |
| 78 | ||
| 79 | static inline bool nf_ct_zone_equal_any(const struct nf_conn *a, | |
| 80 | const struct nf_conntrack_zone *b) | |
| 308ac914 | 81 | { |
| 506e65df | 82 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 308ac914 | 83 | return nf_ct_zone(a)->id == b->id; |
| 506e65df FW |
84 | #else |
| 85 | return true; | |
| 86 | #endif | |
| 308ac914 | 87 | } |
| 1f1475f3 | 88 | |
| 5d0aa2cc | 89 | #endif /* _NF_CONNTRACK_ZONES_H */ |