diff --git a/rpc_auth.h b/rpc_auth.h
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+/* @(#) $Header: /tcpdump/master/tcpdump/rpc_auth.h,v 1.1.2.1 2005/04/27 21:44:07 guy Exp $ (LBL) */
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ *
+ *	from: @(#)auth.h 1.17 88/02/08 SMI
+ *	from: @(#)auth.h	2.3 88/08/07 4.0 RPCSRC
+ * $FreeBSD: src/include/rpc/auth.h,v 1.14.2.1 1999/08/29 14:39:02 peter Exp $
+ */
+
+/*
+ * auth.h, Authentication interface.
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
+ *
+ * The data structures are completely opaque to the client.  The client
+ * is required to pass a AUTH * to routines that create rpc
+ * "sessions".
+ */
+
+/*
+ * Status returned from authentication check
+ */
+enum sunrpc_auth_stat {
+	SUNRPC_AUTH_OK=0,
+	/*
+	 * failed at remote end
+	 */
+	SUNRPC_AUTH_BADCRED=1,		/* bogus credentials (seal broken) */
+	SUNRPC_AUTH_REJECTEDCRED=2,	/* client should begin new session */
+	SUNRPC_AUTH_BADVERF=3,		/* bogus verifier (seal broken) */
+	SUNRPC_AUTH_REJECTEDVERF=4,	/* verifier expired or was replayed */
+	SUNRPC_AUTH_TOOWEAK=5,		/* rejected due to security reasons */
+	/*
+	 * failed locally
+	*/
+	SUNRPC_AUTH_INVALIDRESP=6,	/* bogus response verifier */
+	SUNRPC_AUTH_FAILED=7		/* some unknown reason */
+};
+
+/*
+ * Authentication info.  Opaque to client.
+ */
+struct sunrpc_opaque_auth {
+	u_int32_t oa_flavor;		/* flavor of auth */
+	u_int32_t oa_len;		/* length of opaque body */
+	/* zero or more bytes of body */
+};
+
+#define SUNRPC_AUTH_NONE	0	/* no authentication */
+#define	SUNRPC_AUTH_NULL	0	/* backward compatibility */
+#define	SUNRPC_AUTH_UNIX	1	/* unix style (uid, gids) */
+#define	SUNRPC_AUTH_SYS		1	/* forward compatibility */
+#define	SUNRPC_AUTH_SHORT	2	/* short hand unix style */
+#define SUNRPC_AUTH_DES		3	/* des style (encrypted timestamps) */