1 #ifndef _NF_CONNTRACK_FTP_H
2 #define _NF_CONNTRACK_FTP_H
5 /* This enum is exposed to userspace */
7 /* PORT command from client */
9 /* PASV response from server */
11 /* EPRT command from client */
13 /* EPSV response from server */
21 #define NUM_SEQ_TO_REMEMBER 2
22 /* This structure exists only once per master */
23 struct nf_ct_ftp_master
{
24 /* Valid seq positions for cmd matching after newline */
25 u_int32_t seq_aft_nl
[IP_CT_DIR_MAX
][NUM_SEQ_TO_REMEMBER
];
26 /* 0 means seq_match_aft_nl not set */
27 int seq_aft_nl_num
[IP_CT_DIR_MAX
];
30 struct nf_conntrack_expect
;
32 /* For NAT to hook in when we find a packet which describes what other
33 * connection we should expect. */
34 extern unsigned int (*nf_nat_ftp_hook
)(struct sk_buff
*skb
,
35 enum ip_conntrack_info ctinfo
,
36 enum nf_ct_ftp_type type
,
37 unsigned int matchoff
,
38 unsigned int matchlen
,
39 struct nf_conntrack_expect
*exp
);
40 #endif /* __KERNEL__ */
42 #endif /* _NF_CONNTRACK_FTP_H */
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