fc3893fd5c
after moving sysctl handling into single place, the init functions can't fail anymore and some of the fini functions are empty. Remove them and change return type to void. This also simplifies error unwinding in conntrack module init path. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _NF_CONNTRACK_TSTAMP_H
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#define _NF_CONNTRACK_TSTAMP_H
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#include <net/net_namespace.h>
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#include <linux/netfilter/nf_conntrack_common.h>
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#include <linux/netfilter/nf_conntrack_tuple_common.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_extend.h>
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struct nf_conn_tstamp {
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u_int64_t start;
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u_int64_t stop;
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};
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static inline
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struct nf_conn_tstamp *nf_conn_tstamp_find(const struct nf_conn *ct)
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{
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#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
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return nf_ct_ext_find(ct, NF_CT_EXT_TSTAMP);
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#else
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return NULL;
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#endif
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}
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static inline
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struct nf_conn_tstamp *nf_ct_tstamp_ext_add(struct nf_conn *ct, gfp_t gfp)
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{
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#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
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struct net *net = nf_ct_net(ct);
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if (!net->ct.sysctl_tstamp)
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return NULL;
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return nf_ct_ext_add(ct, NF_CT_EXT_TSTAMP, gfp);
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#else
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return NULL;
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#endif
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};
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static inline bool nf_ct_tstamp_enabled(struct net *net)
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{
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return net->ct.sysctl_tstamp != 0;
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}
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static inline void nf_ct_set_tstamp(struct net *net, bool enable)
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{
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net->ct.sysctl_tstamp = enable;
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}
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#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
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void nf_conntrack_tstamp_pernet_init(struct net *net);
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int nf_conntrack_tstamp_init(void);
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void nf_conntrack_tstamp_fini(void);
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#else
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static inline void nf_conntrack_tstamp_pernet_init(struct net *net) {}
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static inline int nf_conntrack_tstamp_init(void)
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{
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return 0;
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}
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static inline void nf_conntrack_tstamp_fini(void)
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{
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return;
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}
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#endif /* CONFIG_NF_CONNTRACK_TIMESTAMP */
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#endif /* _NF_CONNTRACK_TSTAMP_H */
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