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134 lines
3.8 KiB
C
134 lines
3.8 KiB
C
/*
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* Copyright (c) 2010, Oracle America, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* auth_none.c
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* Creates a client authentication handle for passing "null"
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* credentials and verifiers to remote systems.
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*/
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#include <rpc/rpc.h>
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#include <bits/libc-lock.h>
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#define MAX_MARSHAL_SIZE 20
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/*
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* Authenticator operations routines
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*/
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static void authnone_verf (AUTH *);
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static void authnone_destroy (AUTH *);
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static bool_t authnone_marshal (AUTH *, XDR *);
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static bool_t authnone_validate (AUTH *, struct opaque_auth *);
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static bool_t authnone_refresh (AUTH *);
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static const struct auth_ops ops = {
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authnone_verf,
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authnone_marshal,
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authnone_validate,
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authnone_refresh,
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authnone_destroy
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};
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/* Internal data and routines */
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struct authnone_private_s {
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AUTH no_client;
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char marshalled_client[MAX_MARSHAL_SIZE];
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u_int mcnt;
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};
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static struct authnone_private_s authnone_private;
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__libc_once_define(static, authnone_private_guard);
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static void authnone_create_once (void);
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static void
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authnone_create_once (void)
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{
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struct authnone_private_s *ap;
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XDR xdr_stream;
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XDR *xdrs;
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ap = &authnone_private;
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ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
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ap->no_client.ah_ops = (struct auth_ops *) &ops;
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xdrs = &xdr_stream;
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xdrmem_create (xdrs, ap->marshalled_client,
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(u_int) MAX_MARSHAL_SIZE, XDR_ENCODE);
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(void) xdr_opaque_auth (xdrs, &ap->no_client.ah_cred);
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(void) xdr_opaque_auth (xdrs, &ap->no_client.ah_verf);
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ap->mcnt = XDR_GETPOS (xdrs);
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XDR_DESTROY (xdrs);
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}
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AUTH *
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authnone_create (void)
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{
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__libc_once (authnone_private_guard, authnone_create_once);
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return &authnone_private.no_client;
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}
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libc_hidden_nolink (authnone_create, GLIBC_2_0)
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static bool_t
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authnone_marshal (AUTH *client, XDR *xdrs)
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{
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struct authnone_private_s *ap;
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/* authnone_create returned authnone_private->no_client, which is
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the first field of struct authnone_private_s. */
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ap = (struct authnone_private_s *) client;
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if (ap == NULL)
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return FALSE;
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return (*xdrs->x_ops->x_putbytes) (xdrs, ap->marshalled_client, ap->mcnt);
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}
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static void
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authnone_verf (AUTH *auth)
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{
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}
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static bool_t
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authnone_validate (AUTH *auth, struct opaque_auth *oa)
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{
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return TRUE;
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}
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static bool_t
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authnone_refresh (AUTH *auth)
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{
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return FALSE;
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}
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static void
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authnone_destroy (AUTH *auth)
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{
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}
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