ip_conntrack_ftp.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:1k
- #ifndef _IP_CONNTRACK_FTP_H
- #define _IP_CONNTRACK_FTP_H
- /* FTP tracking. */
- #ifdef __KERNEL__
- #define FTP_PORT 21
- #endif /* __KERNEL__ */
- enum ip_ct_ftp_type
- {
- /* PORT command from client */
- IP_CT_FTP_PORT,
- /* PASV response from server */
- IP_CT_FTP_PASV,
- /* EPRT command from client */
- IP_CT_FTP_EPRT,
- /* EPSV response from server */
- IP_CT_FTP_EPSV,
- };
- #define NUM_SEQ_TO_REMEMBER 2
- /* This structure exists only once per master */
- struct ip_ct_ftp_master {
- /* Valid seq positions for cmd matching after newline */
- u_int32_t seq_aft_nl[IP_CT_DIR_MAX][NUM_SEQ_TO_REMEMBER];
- /* 0 means seq_match_aft_nl not set */
- int seq_aft_nl_num[IP_CT_DIR_MAX];
- };
- struct ip_conntrack_expect;
- /* For NAT to hook in when we find a packet which describes what other
- * connection we should expect. */
- extern unsigned int (*ip_nat_ftp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- enum ip_ct_ftp_type type,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp,
- u32 *seq);
- #endif /* _IP_CONNTRACK_FTP_H */