4e77be4637
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
#ifndef _NF_CONNTRACK_SEQADJ_H
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#define _NF_CONNTRACK_SEQADJ_H
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#include <net/netfilter/nf_conntrack_extend.h>
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/**
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* struct nf_ct_seqadj - sequence number adjustment information
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*
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* @correction_pos: position of the last TCP sequence number modification
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* @offset_before: sequence number offset before last modification
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* @offset_after: sequence number offset after last modification
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*/
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struct nf_ct_seqadj {
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u32 correction_pos;
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s32 offset_before;
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s32 offset_after;
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};
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struct nf_conn_seqadj {
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struct nf_ct_seqadj seq[IP_CT_DIR_MAX];
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};
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static inline struct nf_conn_seqadj *nfct_seqadj(const struct nf_conn *ct)
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{
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return nf_ct_ext_find(ct, NF_CT_EXT_SEQADJ);
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}
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static inline struct nf_conn_seqadj *nfct_seqadj_ext_add(struct nf_conn *ct)
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{
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return nf_ct_ext_add(ct, NF_CT_EXT_SEQADJ, GFP_ATOMIC);
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}
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int nf_ct_seqadj_init(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
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s32 off);
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int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
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__be32 seq, s32 off);
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void nf_ct_tcp_seqadj_set(struct sk_buff *skb, struct nf_conn *ct,
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enum ip_conntrack_info ctinfo, s32 off);
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int nf_ct_seq_adjust(struct sk_buff *skb, struct nf_conn *ct,
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enum ip_conntrack_info ctinfo, unsigned int protoff);
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s32 nf_ct_seq_offset(const struct nf_conn *ct, enum ip_conntrack_dir, u32 seq);
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int nf_conntrack_seqadj_init(void);
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void nf_conntrack_seqadj_fini(void);
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#endif /* _NF_CONNTRACK_SEQADJ_H */
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