1 files changed, 77 insertions, 0 deletions

diff --git a/usr.sbin/ppp/filter.h b/usr.sbin/ppp/filter.h
new file mode 100644
index 0000000..9e6a39d
--- /dev/null
+++ b/usr.sbin/ppp/filter.h
@@ -0,0 +1,77 @@
+/*
+ *	    Written by Toshiharu OHNO (tony-o@iij.ad.jp)
+ *
+ *   Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the Internet Initiative Japan.  The name of the
+ * IIJ may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * $Id:$
+ *
+ *	TODO:
+ */
+
+#ifndef	_FILTER_H_
+#define	_FILTER_H_
+
+#define STREQ(a,b)	(strcmp(a,b) == 0)
+/*
+ *   Actions
+ */
+#define	A_NONE		0
+#define	A_PERMIT	1
+#define	A_DENY		2
+#define	A_MASK		3
+#define	A_UHOST		4
+#define	A_UPORT		8
+
+/*
+ *   Known protocols
+ */
+#define	P_NONE	0
+#define	P_TCP	1
+#define	P_UDP	2
+#define	P_ICMP	3
+
+/*
+ *   Operations
+ */
+#define	OP_NONE	0
+#define	OP_EQ	1
+#define	OP_GT	2
+#define	OP_LT	4
+
+struct filterent {
+  int    action;		/* Filtering action */
+  int    swidth;		/* Effective source address width */
+  struct in_addr saddr;		/* Source address */
+  struct in_addr smask;		/* Source address mask */
+  int    dwidth;		/* Effective destination address width */
+  struct in_addr daddr;		/* Destination address */
+  struct in_addr dmask;		/* Destination address mask */
+  int    proto;			/* Protocol */
+  struct {
+    short   srcop;
+    u_short srcport;
+    short   dstop;
+    u_short dstport;
+    int     estab;
+  } opt;
+};
+
+#define	MAXFILTERS	20
+
+struct filterent ifilters[MAXFILTERS];
+struct filterent ofilters[MAXFILTERS];
+struct filterent dfilters[MAXFILTERS];
+
+#endif	_FILTER_H_