Release 4.7 include/net/netfilter/nf_conntrack_extend.h
#ifndef _NF_CONNTRACK_EXTEND_H
#define _NF_CONNTRACK_EXTEND_H
#include <linux/slab.h>
#include <net/netfilter/nf_conntrack.h>
enum nf_ct_ext_id {
NF_CT_EXT_HELPER,
#if defined(CONFIG_NF_NAT) || defined(CONFIG_NF_NAT_MODULE)
NF_CT_EXT_NAT,
#endif
NF_CT_EXT_SEQADJ,
NF_CT_EXT_ACCT,
#ifdef CONFIG_NF_CONNTRACK_EVENTS
NF_CT_EXT_ECACHE,
#endif
#ifdef CONFIG_NF_CONNTRACK_ZONES
NF_CT_EXT_ZONE,
#endif
#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
NF_CT_EXT_TSTAMP,
#endif
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
NF_CT_EXT_TIMEOUT,
#endif
#ifdef CONFIG_NF_CONNTRACK_LABELS
NF_CT_EXT_LABELS,
#endif
#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)
NF_CT_EXT_SYNPROXY,
#endif
NF_CT_EXT_NUM,
};
#define NF_CT_EXT_HELPER_TYPE struct nf_conn_help
#define NF_CT_EXT_NAT_TYPE struct nf_conn_nat
#define NF_CT_EXT_SEQADJ_TYPE struct nf_conn_seqadj
#define NF_CT_EXT_ACCT_TYPE struct nf_conn_acct
#define NF_CT_EXT_ECACHE_TYPE struct nf_conntrack_ecache
#define NF_CT_EXT_ZONE_TYPE struct nf_conntrack_zone
#define NF_CT_EXT_TSTAMP_TYPE struct nf_conn_tstamp
#define NF_CT_EXT_TIMEOUT_TYPE struct nf_conn_timeout
#define NF_CT_EXT_LABELS_TYPE struct nf_conn_labels
#define NF_CT_EXT_SYNPROXY_TYPE struct nf_conn_synproxy
/* Extensions: optional stuff which isn't permanently in struct. */
struct nf_ct_ext {
struct rcu_head rcu;
u16 offset[NF_CT_EXT_NUM];
u16 len;
char data[0];
};
static inline bool __nf_ct_ext_exist(const struct nf_ct_ext *ext, u8 id)
{
return !!ext->offset[id];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| changli gao | changli gao | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static inline bool nf_ct_ext_exist(const struct nf_conn *ct, u8 id)
{
return (ct->ext && __nf_ct_ext_exist(ct->ext, id));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 27 | 84.38% | 1 | 50.00% |
| changli gao | changli gao | 5 | 15.62% | 1 | 50.00% |
| Total | 32 | 100.00% | 2 | 100.00% |
static inline void *__nf_ct_ext_find(const struct nf_conn *ct, u8 id)
{
if (!nf_ct_ext_exist(ct, id))
return NULL;
return (void *)ct->ext + ct->ext->offset[id];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 48 | 100.00% | 1 | 100.00% |
| Total | 48 | 100.00% | 1 | 100.00% |
#define nf_ct_ext_find(ext, id) \
((id##_TYPE *)__nf_ct_ext_find((ext), (id)))
/* Destroy all relationships */
void __nf_ct_ext_destroy(struct nf_conn *ct);
static inline void nf_ct_ext_destroy(struct nf_conn *ct)
{
if (ct->ext)
__nf_ct_ext_destroy(ct);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
/* Free operation. If you want to free a object referred from private area,
* please implement __nf_ct_ext_free() and call it.
*/
static inline void nf_ct_ext_free(struct nf_conn *ct)
{
if (ct->ext)
kfree_rcu(ct->ext, rcu);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 24 | 88.89% | 1 | 50.00% |
| michal kubecek | michal kubecek | 3 | 11.11% | 1 | 50.00% |
| Total | 27 | 100.00% | 2 | 100.00% |
/* Add this type, returns pointer to data or NULL. */
void *__nf_ct_ext_add_length(struct nf_conn *ct, enum nf_ct_ext_id id,
size_t var_alloc_len, gfp_t gfp);
#define nf_ct_ext_add(ct, id, gfp) \
((id##_TYPE *)__nf_ct_ext_add_length((ct), (id), 0, (gfp)))
#define nf_ct_ext_add_length(ct, id, len, gfp) \
((id##_TYPE *)__nf_ct_ext_add_length((ct), (id), (len), (gfp)))
#define NF_CT_EXT_F_PREALLOC 0x0001
struct nf_ct_ext_type {
/* Destroys relationships (can be NULL). */
void (*destroy)(struct nf_conn *ct);
/* Called when realloacted (can be NULL).
Contents has already been moved. */
void (*move)(void *new, void *old);
enum nf_ct_ext_id id;
unsigned int flags;
/* Length and min alignment. */
u8 len;
u8 align;
/* initial size of nf_ct_ext. */
u8 alloc_size;
};
int nf_ct_extend_register(struct nf_ct_ext_type *type);
void nf_ct_extend_unregister(struct nf_ct_ext_type *type);
#endif /* _NF_CONNTRACK_EXTEND_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 293 | 64.97% | 3 | 15.00% |
| changli gao | changli gao | 52 | 11.53% | 2 | 10.00% |
| pablo neira ayuso | pablo neira ayuso | 47 | 10.42% | 4 | 20.00% |
| patrick mchardy | patrick mchardy | 34 | 7.54% | 5 | 25.00% |
| florian westphal | florian westphal | 11 | 2.44% | 1 | 5.00% |
| krzysztof piotr oledzki | krzysztof piotr oledzki | 5 | 1.11% | 1 | 5.00% |
| tejun heo | tejun heo | 3 | 0.67% | 1 | 5.00% |
| michal kubecek | michal kubecek | 3 | 0.67% | 1 | 5.00% |
| andrey vagin | andrey vagin | 2 | 0.44% | 1 | 5.00% |
| holger eitzenberger | holger eitzenberger | 1 | 0.22% | 1 | 5.00% |
| Total | 451 | 100.00% | 20 | 100.00% |
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