1 files changed, 48 insertions, 0 deletions
diff --git a/release/src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_ftp.h b/release/src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_ftp.h
new file mode 100644
index 00000000..677db49e
--- /dev/null
+++ b/release/src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_ftp.h
@@ -0,0 +1,48 @@
+#ifndef _IP_CONNTRACK_FTP_H
+#define _IP_CONNTRACK_FTP_H
+/* FTP tracking. */
+
+#ifdef __KERNEL__
+
+#include <linux/netfilter_ipv4/lockhelp.h>
+
+/* Protects ftp part of conntracks */
+DECLARE_LOCK_EXTERN(ip_ftp_lock);
+
+#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,
+};
+
+/* This structure is per expected connection */
+struct ip_ct_ftp_expect
+{
+	/* We record seq number and length of ftp ip/port text here: all in
+	 * host order. */
+
+ 	/* sequence number of IP address in packet is in ip_conntrack_expect */
+	u_int32_t len;			/* length of IP address */
+	enum ip_ct_ftp_type ftptype;	/* PORT or PASV ? */
+	u_int16_t port; 		/* TCP port that was to be used */
+};
+
+/* This structure exists only once per master */
+struct ip_ct_ftp_master {
+	/* Next valid seq position for cmd matching after newline */
+	u_int32_t seq_aft_nl[IP_CT_DIR_MAX];
+	/* 0 means seq_match_aft_nl not set */
+	int seq_aft_nl_set[IP_CT_DIR_MAX];
+};
+
+#endif /* _IP_CONNTRACK_FTP_H */