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/* @(#)auth.h 2.3 88/08/07 4.0 RPCSRC; from 1.17 88/02/08 SMI */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the "Oracle America, Inc." 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT
* HOLDER 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.
*/
/*
* auth.h, Authentication interface.
*
* The data structures are completely opaque to the client. The client
* is required to pass a AUTH * to routines that create rpc
* "sessions".
*/
#ifndef GSSRPC_AUTH_H
#define GSSRPC_AUTH_H
#include <gssrpc/xdr.h>
GSSRPC__BEGIN_DECLS
#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 */
/*
* RPCSEC_GSS errors
*/
RPCSEC_GSS_CREDPROBLEM = 13,
RPCSEC_GSS_CTXPROBLEM = 14
};
union des_block {
char c[8];
};
typedef union des_block des_block;
extern bool_t xdr_des_block(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.
*/
struct rpc_msg;
typedef struct AUTH {
struct opaque_auth ah_cred;
struct opaque_auth ah_verf;
union des_block ah_key;
struct auth_ops {
void (*ah_nextverf)(struct AUTH *);
/* nextverf & serialize */
int (*ah_marshal)(struct AUTH *, XDR *);
/* validate varifier */
int (*ah_validate)(struct AUTH *,
struct opaque_auth *);
/* refresh credentials */
int (*ah_refresh)(struct AUTH *, struct rpc_msg *);
/* destroy this structure */
void (*ah_destroy)(struct AUTH *);
/* encode data for wire */
int (*ah_wrap)(struct AUTH *, XDR *,
xdrproc_t, caddr_t);
/* decode data from wire */
int (*ah_unwrap)(struct AUTH *, XDR *,
xdrproc_t, caddr_t);
} *ah_ops;
void *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, msg) \
((*((auth)->ah_ops->ah_refresh))(auth, msg))
#define auth_refresh(auth, msg) \
((*((auth)->ah_ops->ah_refresh))(auth, msg))
#define AUTH_WRAP(auth, xdrs, xfunc, xwhere) \
((*((auth)->ah_ops->ah_wrap))(auth, xdrs, \
xfunc, xwhere))
#define auth_wrap(auth, xdrs, xfunc, xwhere) \
((*((auth)->ah_ops->ah_wrap))(auth, xdrs, \
xfunc, xwhere))
#define AUTH_UNWRAP(auth, xdrs, xfunc, xwhere) \
((*((auth)->ah_ops->ah_unwrap))(auth, xdrs, \
xfunc, xwhere))
#define auth_unwrap(auth, xdrs, xfunc, xwhere) \
((*((auth)->ah_ops->ah_unwrap))(auth, xdrs, \
xfunc, xwhere))
#define AUTH_DESTROY(auth) \
((*((auth)->ah_ops->ah_destroy))(auth))
#define auth_destroy(auth) \
((*((auth)->ah_ops->ah_destroy))(auth))
#ifdef GSSRPC__IMPL
/* RENAMED: should be _null_auth if we can use reserved namespace. */
extern struct opaque_auth gssrpc__null_auth;
#endif
/*
* 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(char *machname, int uid, int gid, int len,
int *aup_gids);
extern AUTH *authunix_create_default(void); /* takes no parameters */
extern AUTH *authnone_create(void); /* takes no parameters */
extern AUTH *authdes_create();
extern bool_t xdr_opaque_auth(XDR *, struct opaque_auth *);
#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) */
#define AUTH_GSSAPI 300001 /* GSS-API style */
#define RPCSEC_GSS 6 /* RPCSEC_GSS */
GSSRPC__END_DECLS
#endif /* !defined(GSSRPC_AUTH_H) */