Replacement import of ipfilter 3.1.7 components used in kernel.

(This is to repair the vendor branching)

1 files changed, 86 insertions, 0 deletions

diff --git a/sys/netinet/ip_state.h b/sys/netinet/ip_state.h
new file mode 100644
index 0000000..ee30b98
--- /dev/null
+++ b/sys/netinet/ip_state.h
@@ -0,0 +1,86 @@
+/*
+ * (C)opyright 1995 by Darren Reed.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and due credit is given
+ * to the original author and the contributors.
+ *
+ * @(#)ip_state.h	1.3 1/12/96 (C) 1995 Darren Reed
+ * $Id: ip_state.h,v 2.0.1.1 1997/01/09 15:14:43 darrenr Exp $
+ */
+#ifndef	__IP_STATE_H__
+#define	__IP_STATE_H__
+
+#define	IPSTATE_SIZE	257
+#define	IPSTATE_MAX	2048	/* Maximum number of states held */
+
+typedef struct udpstate {
+	u_short	us_sport;
+	u_short	us_dport;
+} udpstate_t;
+
+typedef struct icmpstate {
+	u_short	ics_id;
+	u_short	ics_seq;
+	u_char	ics_type;
+} icmpstate_t;
+
+typedef	struct tcpstate {
+	u_short	ts_sport;
+	u_short	ts_dport;
+	u_long	ts_seq;
+	u_long	ts_ack;
+	u_short	ts_swin;
+	u_short	ts_dwin;
+	u_char	ts_state[2];
+} tcpstate_t;
+
+typedef struct ipstate {
+	struct	ipstate	*is_next;
+	int	is_age;
+	u_int	is_pass;
+	struct	in_addr	is_src;
+	struct	in_addr	is_dst;
+	u_char	is_p;
+	u_char	is_flags;
+	union {
+		icmpstate_t	is_ics;
+		tcpstate_t	is_ts;
+		udpstate_t	is_us;
+	} is_ps;
+} ipstate_t;
+
+#define	is_icmp	is_ps.is_ics
+#define	is_tcp	is_ps.is_ts
+#define	is_udp	is_ps.is_us
+#define	is_seq	is_tcp.ts_seq
+#define	is_ack	is_tcp.ts_ack
+#define	is_dwin	is_tcp.ts_dwin
+#define	is_swin	is_tcp.ts_swin
+#define	is_sport	is_tcp.ts_sport
+#define	is_dport	is_tcp.ts_dport
+#define	is_state	is_tcp.ts_state
+
+#define	TH_OPENING	(TH_SYN|TH_ACK)
+
+typedef	struct	ips_stat {
+	u_long	iss_hits;
+	u_long	iss_miss;
+	u_long	iss_max;
+	u_long	iss_tcp;
+	u_long	iss_udp;
+	u_long	iss_icmp;
+	u_long	iss_nomem;
+	u_long	iss_expire;
+	u_long	iss_fin;
+	u_long	iss_active;
+	ipstate_t **iss_table;
+} ips_stat_t;
+
+extern ips_stat_t *fr_statetstats();
+extern int fr_addstate(), fr_checkstate();
+extern void fr_timeoutstate(), set_tcp_age();
+# ifdef	_KERNEL
+extern void fr_stateunload();
+# endif
+#endif /* __IP_STATE_H__ */