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 11struct nf_conn_tstamp { 12 u_int64_t start; 13 u_int64_t stop; 14}; 15 16static inline 17struct 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, NF_CT_EXT_TSTAMP); 21#else 22 return NULL; 23#endif 24} 25 26static inline 27struct 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, NF_CT_EXT_TSTAMP, gfp); 36#else 37 return NULL; 38#endif 39}; 40 41#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP 42void nf_conntrack_tstamp_pernet_init(struct net *net); 43#else 44static inline void nf_conntrack_tstamp_pernet_init(struct net *net) {} 45#endif /* CONFIG_NF_CONNTRACK_TIMESTAMP */ 46 47#endif /* _NF_CONNTRACK_TSTAMP_H */ 48