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