Contributors: 12
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Yasuyuki Kozakai |
141 |
48.45% |
4 |
17.39% |
| Florian Westphal |
62 |
21.31% |
5 |
21.74% |
| Changli Gao |
42 |
14.43% |
2 |
8.70% |
| Pablo Neira Ayuso |
14 |
4.81% |
3 |
13.04% |
| Patrick McHardy |
14 |
4.81% |
2 |
8.70% |
| Paul Blakey |
10 |
3.44% |
1 |
4.35% |
| Krzysztof Piotr Oledzki |
2 |
0.69% |
1 |
4.35% |
| Linus Torvalds (pre-git) |
2 |
0.69% |
1 |
4.35% |
| Greg Kroah-Hartman |
1 |
0.34% |
1 |
4.35% |
| Jeremy Sowden |
1 |
0.34% |
1 |
4.35% |
| Gustavo A. R. Silva |
1 |
0.34% |
1 |
4.35% |
| Linus Torvalds |
1 |
0.34% |
1 |
4.35% |
| Total |
291 |
|
23 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#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 IS_ENABLED(CONFIG_NF_NAT)
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
#if IS_ENABLED(CONFIG_NET_ACT_CT)
NF_CT_EXT_ACT_CT,
#endif
NF_CT_EXT_NUM,
};
/* Extensions: optional stuff which isn't permanently in struct. */
struct nf_ct_ext {
u8 offset[NF_CT_EXT_NUM];
u8 len;
unsigned int gen_id;
char data[] __aligned(8);
};
static inline bool __nf_ct_ext_exist(const struct nf_ct_ext *ext, u8 id)
{
return !!ext->offset[id];
}
static inline bool nf_ct_ext_exist(const struct nf_conn *ct, u8 id)
{
return (ct->ext && __nf_ct_ext_exist(ct->ext, id));
}
void *__nf_ct_ext_find(const struct nf_ct_ext *ext, u8 id);
static inline void *nf_ct_ext_find(const struct nf_conn *ct, u8 id)
{
struct nf_ct_ext *ext = ct->ext;
if (!ext || !__nf_ct_ext_exist(ext, id))
return NULL;
if (unlikely(ext->gen_id))
return __nf_ct_ext_find(ext, id);
return (void *)ct->ext + ct->ext->offset[id];
}
/* 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);
/* ext genid. if ext->id != ext_genid, extensions cannot be used
* anymore unless conntrack has CONFIRMED bit set.
*/
extern atomic_t nf_conntrack_ext_genid;
void nf_ct_ext_bump_genid(void);
#endif /* _NF_CONNTRACK_EXTEND_H */