Release 4.12 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_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_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;
u8 offset[NF_CT_EXT_NUM];
u8 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 | 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 | 27 | 84.38% | 1 | 50.00% |
| 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 | 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);
/* 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 | 24 | 88.89% | 1 | 50.00% |
| Michal Kubeček | 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(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp);
struct nf_ct_ext_type {
/* Destroys relationships (can be NULL). */
void (*destroy)(struct nf_conn *ct);
enum nf_ct_ext_id id;
/* Length and min alignment. */
u8 len;
u8 align;
};
int nf_ct_extend_register(const struct nf_ct_ext_type *type);
void nf_ct_extend_unregister(const struct nf_ct_ext_type *type);
#endif /* _NF_CONNTRACK_EXTEND_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yasuyuki Kozakai | 232 | 64.09% | 3 | 15.00% |
| Changli Gao | 49 | 13.54% | 2 | 10.00% |
| Pablo Neira Ayuso | 26 | 7.18% | 3 | 15.00% |
| Patrick McHardy | 26 | 7.18% | 3 | 15.00% |
| Florian Westphal | 16 | 4.42% | 4 | 20.00% |
| Krzysztof Piotr Oledzki | 5 | 1.38% | 1 | 5.00% |
| Michal Kubeček | 3 | 0.83% | 1 | 5.00% |
| Tejun Heo | 3 | 0.83% | 1 | 5.00% |
| Holger Eitzenberger | 1 | 0.28% | 1 | 5.00% |
| Liping Zhang | 1 | 0.28% | 1 | 5.00% |
| Total | 362 | 100.00% | 20 | 100.00% |
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