| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef _NF_CONNTRACK_TSTAMP_H |
| 3 | #define _NF_CONNTRACK_TSTAMP_H |
| 4 | |
| 5 | #include <net/net_namespace.h> |
| 6 | #include <linux/netfilter/nf_conntrack_common.h> |
| 7 | #include <linux/netfilter/nf_conntrack_tuple_common.h> |
| 8 | #include <net/netfilter/nf_conntrack.h> |
| 9 | #include <net/netfilter/nf_conntrack_extend.h> |
| 10 | |
| 11 | struct nf_conn_tstamp { |
| 12 | u_int64_t start; |
| 13 | u_int64_t stop; |
| 14 | }; |
| 15 | |
| 16 | static inline |
| 17 | struct nf_conn_tstamp *nf_conn_tstamp_find(const struct nf_conn *ct) |
| 18 | { |
| 19 | #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
| 20 | return nf_ct_ext_find(ct, id: NF_CT_EXT_TSTAMP); |
| 21 | #else |
| 22 | return NULL; |
| 23 | #endif |
| 24 | } |
| 25 | |
| 26 | static inline |
| 27 | struct nf_conn_tstamp *nf_ct_tstamp_ext_add(struct nf_conn *ct, gfp_t gfp) |
| 28 | { |
| 29 | #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
| 30 | struct net *net = nf_ct_net(ct); |
| 31 | |
| 32 | if (!net->ct.sysctl_tstamp) |
| 33 | return NULL; |
| 34 | |
| 35 | return nf_ct_ext_add(ct, id: NF_CT_EXT_TSTAMP, gfp); |
| 36 | #else |
| 37 | return NULL; |
| 38 | #endif |
| 39 | }; |
| 40 | |
| 41 | #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
| 42 | void nf_conntrack_tstamp_pernet_init(struct net *net); |
| 43 | #else |
| 44 | static inline void nf_conntrack_tstamp_pernet_init(struct net *net) {} |
| 45 | #endif /* CONFIG_NF_CONNTRACK_TIMESTAMP */ |
| 46 | |
| 47 | #endif /* _NF_CONNTRACK_TSTAMP_H */ |
| 48 |