Initial revision

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diff --git a/include/rpc/auth.h b/include/rpc/auth.h
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+/* @(#)auth.h	2.3 88/08/07 4.0 RPCSRC; from 1.17 88/02/08 SMI */
+/*
+ * 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, MERCHANTIBILITY 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
+ */
+
+/*
+ * 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".
+ */
+
+
+#define MAX_AUTH_BYTES	400
+#define MAXNETNAMELEN	255	/* maximum length of network user's name */
+
+/*
+ * Status returned from authentication check
+ */
+enum auth_stat {
+	AUTH_OK=0,
+	/*
+	 * failed at remote end
+	 */
+	AUTH_BADCRED=1,			/* bogus credentials (seal broken) */
+	AUTH_REJECTEDCRED=2,		/* client should begin new session */
+	AUTH_BADVERF=3,			/* bogus verifier (seal broken) */
+	AUTH_REJECTEDVERF=4,		/* verifier expired or was replayed */
+	AUTH_TOOWEAK=5,			/* rejected due to security reasons */
+	/*
+	 * failed locally
+	*/
+	AUTH_INVALIDRESP=6,		/* bogus response verifier */
+	AUTH_FAILED=7			/* some unknown reason */
+};
+
+#if (mc68000 || sparc || vax || i386)
+typedef u_long u_int32;	/* 32-bit unsigned integers */
+#endif
+
+union des_block {
+	struct {
+		u_int32 high;
+		u_int32 low;
+	} key;
+	char c[8];
+};
+typedef union des_block des_block;
+extern bool_t xdr_des_block();
+
+/*
+ * Authentication info.  Opaque to client.
+ */
+struct opaque_auth {
+	enum_t	oa_flavor;		/* flavor of auth */
+	caddr_t	oa_base;		/* address of more auth stuff */
+	u_int	oa_length;		/* not to exceed MAX_AUTH_BYTES */
+};
+
+
+/*
+ * Auth handle, interface to client side authenticators.
+ */
+typedef struct {
+	struct	opaque_auth	ah_cred;
+	struct	opaque_auth	ah_verf;
+	union	des_block	ah_key;
+	struct auth_ops {
+		void	(*ah_nextverf)();
+		int	(*ah_marshal)();	/* nextverf & serialize */
+		int	(*ah_validate)();	/* validate varifier */
+		int	(*ah_refresh)();	/* refresh credentials */
+		void	(*ah_destroy)();	/* destroy this structure */
+	} *ah_ops;
+	caddr_t ah_private;
+} AUTH;
+
+
+/*
+ * Authentication ops.
+ * The ops and the auth handle provide the interface to the authenticators.
+ *
+ * AUTH	*auth;
+ * XDR	*xdrs;
+ * struct opaque_auth verf;
+ */
+#define AUTH_NEXTVERF(auth)		\
+		((*((auth)->ah_ops->ah_nextverf))(auth))
+#define auth_nextverf(auth)		\
+		((*((auth)->ah_ops->ah_nextverf))(auth))
+
+#define AUTH_MARSHALL(auth, xdrs)	\
+		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
+#define auth_marshall(auth, xdrs)	\
+		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
+
+#define AUTH_VALIDATE(auth, verfp)	\
+		((*((auth)->ah_ops->ah_validate))((auth), verfp))
+#define auth_validate(auth, verfp)	\
+		((*((auth)->ah_ops->ah_validate))((auth), verfp))
+
+#define AUTH_REFRESH(auth)		\
+		((*((auth)->ah_ops->ah_refresh))(auth))
+#define auth_refresh(auth)		\
+		((*((auth)->ah_ops->ah_refresh))(auth))
+
+#define AUTH_DESTROY(auth)		\
+		((*((auth)->ah_ops->ah_destroy))(auth))
+#define auth_destroy(auth)		\
+		((*((auth)->ah_ops->ah_destroy))(auth))
+
+
+extern struct opaque_auth _null_auth;
+
+
+/*
+ * These are the various implementations of client side authenticators.
+ */
+
+/*
+ * Unix style authentication
+ * AUTH *authunix_create(machname, uid, gid, len, aup_gids)
+ *	char *machname;
+ *	int uid;
+ *	int gid;
+ *	int len;
+ *	int *aup_gids;
+ */
+extern AUTH *authunix_create();
+extern AUTH *authunix_create_default();	/* takes no parameters */
+extern AUTH *authnone_create();		/* takes no parameters */
+extern AUTH *authdes_create();
+
+#define AUTH_NONE	0		/* no authentication */
+#define	AUTH_NULL	0		/* backward compatibility */
+#define	AUTH_UNIX	1		/* unix style (uid, gids) */
+#define	AUTH_SHORT	2		/* short hand unix style */
+#define AUTH_DES	3		/* des style (encrypted timestamps) */