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diff --git a/support/rpc/include/rpc/auth_gss.h b/support/rpc/include/rpc/auth_gss.h
new file mode 100644
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+++ b/support/rpc/include/rpc/auth_gss.h
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+/*
+  auth_gss.h
+
+  Copyright (c) 2000 The Regents of the University of Michigan.
+  All rights reserved.
+
+  Copyright (c) 2000 Dug Song <dugsong@UMICH.EDU>.
+  All rights reserved, all wrongs reversed.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+  3. Neither the name of the University nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#ifndef _RPC_AUTH_GSS_H
+#define _RPC_AUTH_GSS_H
+
+#include "config.h"
+#include <rpc/clnt.h>
+#include "../../../include/gssapi/gssapi.h"
+
+/* RPCSEC_GSS control procedures. */
+typedef enum {
+	RPCSEC_GSS_DATA = 0,
+	RPCSEC_GSS_INIT = 1,
+	RPCSEC_GSS_CONTINUE_INIT = 2,
+	RPCSEC_GSS_DESTROY = 3
+} rpc_gss_proc_t;
+
+/* RPCSEC_GSS services. */
+typedef enum {
+	RPCSEC_GSS_SVC_NONE = 1,
+	RPCSEC_GSS_SVC_INTEGRITY = 2,
+	RPCSEC_GSS_SVC_PRIVACY = 3
+} rpc_gss_svc_t;
+
+#define RPCSEC_GSS_VERSION	1
+
+/* RPCSEC_GSS security triple. */
+struct rpc_gss_sec {
+	gss_OID		mech;		/* mechanism */
+	gss_qop_t	qop;		/* quality of protection */
+	rpc_gss_svc_t	svc;		/* service */
+	gss_cred_id_t	cred;		/* cred handle */
+	u_int		req_flags;	/* req flags for init_sec_context */
+};
+
+/* Private data required for kernel implementation */
+struct authgss_private_data {
+	gss_ctx_id_t	pd_ctx;		/* Session context handle */
+	gss_buffer_desc	pd_ctx_hndl;	/* Credentials context handle */
+	u_int		pd_seq_win;	/* Sequence window */
+};
+
+/* Credentials. */
+struct rpc_gss_cred {
+	u_int		gc_v;		/* version */
+	rpc_gss_proc_t	gc_proc;	/* control procedure */
+	u_int		gc_seq;		/* sequence number */
+	rpc_gss_svc_t	gc_svc;		/* service */
+	gss_buffer_desc	gc_ctx;		/* context handle */
+};
+
+/* Context creation response. */
+struct rpc_gss_init_res {
+	gss_buffer_desc		gr_ctx;		/* context handle */
+	u_int			gr_major;	/* major status */
+	u_int			gr_minor;	/* minor status */
+	u_int			gr_win;		/* sequence window */
+	gss_buffer_desc		gr_token;	/* token */
+};
+
+/* Maximum sequence number value. */
+#define MAXSEQ		0x80000000
+
+/* Prototypes. */
+__BEGIN_DECLS
+bool_t	xdr_rpc_gss_cred	__P((XDR *xdrs, struct rpc_gss_cred *p));
+bool_t	xdr_rpc_gss_init_args	__P((XDR *xdrs, gss_buffer_desc *p));
+bool_t	xdr_rpc_gss_init_res	__P((XDR *xdrs, struct rpc_gss_init_res *p));
+bool_t	xdr_rpc_gss_data	__P((XDR *xdrs, xdrproc_t xdr_func,
+				     caddr_t xdr_ptr, gss_ctx_id_t ctx,
+				     gss_qop_t qop, rpc_gss_svc_t svc,
+				     u_int seq));
+
+AUTH   *authgss_create		__P((CLIENT *, gss_name_t,
+				     struct rpc_gss_sec *));
+AUTH   *authgss_create_default	__P((CLIENT *, char *, struct rpc_gss_sec *));
+bool_t authgss_service		__P((AUTH *auth, int svc));
+bool_t authgss_get_private_data	__P((AUTH *auth,
+				     struct authgss_private_data *));
+
+
+void	log_debug		__P((const char *fmt, ...));
+void	log_status		__P((char *m, OM_uint32 major,
+				     OM_uint32 minor));
+void	log_hexdump		__P((const u_char *buf, int len, int offset));
+
+__END_DECLS
+
+#endif /* !_RPC_AUTH_GSS_H */