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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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261db6c2fb
Move some `struct nf_conntrack` code from linux/skbuff.h to linux/nf_conntrack_common.h. Together with a couple of helpers for getting and setting skb->_nfct, it allows us to remove CONFIG_NF_CONNTRACK checks from net/netfilter/nf_conntrack.h. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
42 lines
956 B
C
42 lines
956 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _NF_CONNTRACK_COMMON_H
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#define _NF_CONNTRACK_COMMON_H
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#include <linux/atomic.h>
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#include <uapi/linux/netfilter/nf_conntrack_common.h>
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struct ip_conntrack_stat {
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unsigned int found;
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unsigned int invalid;
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unsigned int ignore;
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unsigned int insert;
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unsigned int insert_failed;
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unsigned int drop;
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unsigned int early_drop;
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unsigned int error;
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unsigned int expect_new;
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unsigned int expect_create;
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unsigned int expect_delete;
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unsigned int search_restart;
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};
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#define NFCT_INFOMASK 7UL
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#define NFCT_PTRMASK ~(NFCT_INFOMASK)
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struct nf_conntrack {
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atomic_t use;
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};
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void nf_conntrack_destroy(struct nf_conntrack *nfct);
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static inline void nf_conntrack_put(struct nf_conntrack *nfct)
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{
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if (nfct && atomic_dec_and_test(&nfct->use))
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nf_conntrack_destroy(nfct);
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}
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static inline void nf_conntrack_get(struct nf_conntrack *nfct)
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{
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if (nfct)
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atomic_inc(&nfct->use);
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}
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#endif /* _NF_CONNTRACK_COMMON_H */
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