projects / thirdparty / kernel / linux.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> |
| 308ac914 DB |
6 | |
| 7 | #if IS_ENABLED(CONFIG_NF_CONNTRACK) | |
| 8 | #include <net/netfilter/nf_conntrack_extend.h> | |
| 9 | ||
| 10 | static inline const struct nf_conntrack_zone * | |
| 11 | nf_ct_zone(const struct nf_conn *ct) | |
| 5d0aa2cc PM |
12 | { |
| 13 | #ifdef CONFIG_NF_CONNTRACK_ZONES | |
| 6c8dee98 FW |
14 | return &ct->zone; |
| 15 | #else | |
| 16 | return &nf_ct_zone_dflt; | |
| 5d0aa2cc | 17 | #endif |
| 5d0aa2cc PM |
18 | } |
| 19 | ||
| 308ac914 | 20 | static inline const struct nf_conntrack_zone * |
| 5e8018fc DB |
21 | nf_ct_zone_init(struct nf_conntrack_zone *zone, u16 id, u8 dir, u8 flags) |
| 22 | { | |
| 23 | zone->id = id; | |
| 24 | zone->flags = flags; | |
| 25 | zone->dir = dir; | |
| 26 | ||
| 27 | return zone; | |
| 28 | } | |
| 29 | ||
| 30 | static inline const struct nf_conntrack_zone * | |
| 31 | nf_ct_zone_tmpl(const struct nf_conn *tmpl, const struct sk_buff *skb, | |
| 32 | struct nf_conntrack_zone *tmp) | |
| 33 | { | |
| 6c8dee98 | 34 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 5e8018fc DB |
35 | if (!tmpl) |
| 36 | return &nf_ct_zone_dflt; | |
| 37 | ||
| 6c8dee98 FW |
38 | if (tmpl->zone.flags & NF_CT_FLAG_MARK) |
| 39 | return nf_ct_zone_init(tmp, skb->mark, tmpl->zone.dir, 0); | |
| 40 | #endif | |
| 41 | return nf_ct_zone(tmpl); | |
| 5e8018fc DB |
42 | } |
| 43 | ||
| 6c8dee98 FW |
44 | static inline void nf_ct_zone_add(struct nf_conn *ct, |
| 45 | const struct nf_conntrack_zone *zone) | |
| 308ac914 | 46 | { |
| 5e8018fc | 47 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 6c8dee98 | 48 | ct->zone = *zone; |
| 5e8018fc | 49 | #endif |
| 308ac914 DB |
50 | } |
| 51 | ||
| deedb590 DB |
52 | static inline bool nf_ct_zone_matches_dir(const struct nf_conntrack_zone *zone, |
| 53 | enum ip_conntrack_dir dir) | |
| 54 | { | |
| 55 | return zone->dir & (1 << dir); | |
| 56 | } | |
| 57 | ||
| 58 | static inline u16 nf_ct_zone_id(const struct nf_conntrack_zone *zone, | |
| 59 | enum ip_conntrack_dir dir) | |
| 60 | { | |
| 506e65df | 61 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| deedb590 DB |
62 | return nf_ct_zone_matches_dir(zone, dir) ? |
| 63 | zone->id : NF_CT_DEFAULT_ZONE_ID; | |
| 506e65df FW |
64 | #else |
| 65 | return NF_CT_DEFAULT_ZONE_ID; | |
| 66 | #endif | |
| deedb590 DB |
67 | } |
| 68 | ||
| 308ac914 | 69 | static inline bool nf_ct_zone_equal(const struct nf_conn *a, |
| deedb590 DB |
70 | const struct nf_conntrack_zone *b, |
| 71 | enum ip_conntrack_dir dir) | |
| 72 | { | |
| 506e65df | 73 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| deedb590 DB |
74 | return nf_ct_zone_id(nf_ct_zone(a), dir) == |
| 75 | nf_ct_zone_id(b, dir); | |
| 506e65df FW |
76 | #else |
| 77 | return true; | |
| 78 | #endif | |
| deedb590 DB |
79 | } |
| 80 | ||
| 81 | static inline bool nf_ct_zone_equal_any(const struct nf_conn *a, | |
| 82 | const struct nf_conntrack_zone *b) | |
| 308ac914 | 83 | { |
| 506e65df | 84 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 308ac914 | 85 | return nf_ct_zone(a)->id == b->id; |
| 506e65df FW |
86 | #else |
| 87 | return true; | |
| 88 | #endif | |
| 308ac914 DB |
89 | } |
| 90 | #endif /* IS_ENABLED(CONFIG_NF_CONNTRACK) */ | |
| 5d0aa2cc | 91 | #endif /* _NF_CONNTRACK_ZONES_H */ |