| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _NF_CONNTRACK_TSTAMP_H |
| #define _NF_CONNTRACK_TSTAMP_H |
| |
| #include <net/net_namespace.h> |
| #include <linux/netfilter/nf_conntrack_common.h> |
| #include <linux/netfilter/nf_conntrack_tuple_common.h> |
| #include <net/netfilter/nf_conntrack.h> |
| #include <net/netfilter/nf_conntrack_extend.h> |
| |
| struct nf_conn_tstamp { |
| u_int64_t start; |
| u_int64_t stop; |
| }; |
| |
| static inline |
| struct nf_conn_tstamp *nf_conn_tstamp_find(const struct nf_conn *ct) |
| { |
| #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
| return nf_ct_ext_find(ct, NF_CT_EXT_TSTAMP); |
| #else |
| return NULL; |
| #endif |
| } |
| |
| static inline |
| struct nf_conn_tstamp *nf_ct_tstamp_ext_add(struct nf_conn *ct, gfp_t gfp) |
| { |
| #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
| struct net *net = nf_ct_net(ct); |
| |
| if (!net->ct.sysctl_tstamp) |
| return NULL; |
| |
| return nf_ct_ext_add(ct, NF_CT_EXT_TSTAMP, gfp); |
| #else |
| return NULL; |
| #endif |
| }; |
| |
| static inline bool nf_ct_tstamp_enabled(struct net *net) |
| { |
| return net->ct.sysctl_tstamp != 0; |
| } |
| |
| static inline void nf_ct_set_tstamp(struct net *net, bool enable) |
| { |
| net->ct.sysctl_tstamp = enable; |
| } |
| |
| #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
| int nf_conntrack_tstamp_pernet_init(struct net *net); |
| void nf_conntrack_tstamp_pernet_fini(struct net *net); |
| |
| int nf_conntrack_tstamp_init(void); |
| void nf_conntrack_tstamp_fini(void); |
| #else |
| static inline int nf_conntrack_tstamp_pernet_init(struct net *net) |
| { |
| return 0; |
| } |
| |
| static inline void nf_conntrack_tstamp_pernet_fini(struct net *net) |
| { |
| return; |
| } |
| |
| static inline int nf_conntrack_tstamp_init(void) |
| { |
| return 0; |
| } |
| |
| static inline void nf_conntrack_tstamp_fini(void) |
| { |
| return; |
| } |
| #endif /* CONFIG_NF_CONNTRACK_TIMESTAMP */ |
| |
| #endif /* _NF_CONNTRACK_TSTAMP_H */ |