1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#ifndef _IP_CONNTRACK_FTP_H
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#define _IP_CONNTRACK_FTP_H
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/* FTP tracking. */
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#ifdef __KERNEL__
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#define FTP_PORT 21
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#endif /* __KERNEL__ */
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enum ip_ct_ftp_type
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{
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/* PORT command from client */
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IP_CT_FTP_PORT,
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/* PASV response from server */
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IP_CT_FTP_PASV,
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/* EPRT command from client */
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IP_CT_FTP_EPRT,
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/* EPSV response from server */
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IP_CT_FTP_EPSV,
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};
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#define NUM_SEQ_TO_REMEMBER 2
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/* This structure exists only once per master */
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struct ip_ct_ftp_master {
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/* Valid seq positions for cmd matching after newline */
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u_int32_t seq_aft_nl[IP_CT_DIR_MAX][NUM_SEQ_TO_REMEMBER];
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/* 0 means seq_match_aft_nl not set */
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int seq_aft_nl_num[IP_CT_DIR_MAX];
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};
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struct ip_conntrack_expect;
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/* For NAT to hook in when we find a packet which describes what other
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* connection we should expect. */
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extern unsigned int (*ip_nat_ftp_hook)(struct sk_buff **pskb,
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enum ip_conntrack_info ctinfo,
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enum ip_ct_ftp_type type,
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unsigned int matchoff,
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unsigned int matchlen,
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struct ip_conntrack_expect *exp,
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u32 *seq);
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#endif /* _IP_CONNTRACK_FTP_H */
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