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/*
* Copyright (c) 2010, Oracle America, Inc.
*
* 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_none.c
* Creates a client authentication handle for passing "null"
* credentials and verifiers to remote systems.
*/
#include <rpc/rpc.h>
#include <bits/libc-lock.h>
#define MAX_MARSHAL_SIZE 20
/*
* Authenticator operations routines
*/
static void authnone_verf (AUTH *);
static void authnone_destroy (AUTH *);
static bool_t authnone_marshal (AUTH *, XDR *);
static bool_t authnone_validate (AUTH *, struct opaque_auth *);
static bool_t authnone_refresh (AUTH *);
static const struct auth_ops ops = {
authnone_verf,
authnone_marshal,
authnone_validate,
authnone_refresh,
authnone_destroy
};
/* Internal data and routines */
struct authnone_private_s {
AUTH no_client;
char marshalled_client[MAX_MARSHAL_SIZE];
u_int mcnt;
};
static struct authnone_private_s authnone_private;
__libc_once_define(static, authnone_private_guard);
static void authnone_create_once (void);
static void
authnone_create_once (void)
{
struct authnone_private_s *ap;
XDR xdr_stream;
XDR *xdrs;
ap = &authnone_private;
ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
ap->no_client.ah_ops = (struct auth_ops *) &ops;
xdrs = &xdr_stream;
xdrmem_create (xdrs, ap->marshalled_client,
(u_int) MAX_MARSHAL_SIZE, XDR_ENCODE);
(void) xdr_opaque_auth (xdrs, &ap->no_client.ah_cred);
(void) xdr_opaque_auth (xdrs, &ap->no_client.ah_verf);
ap->mcnt = XDR_GETPOS (xdrs);
XDR_DESTROY (xdrs);
}
AUTH *
authnone_create (void)
{
__libc_once (authnone_private_guard, authnone_create_once);
return &authnone_private.no_client;
}
libc_hidden_nolink (authnone_create, GLIBC_2_0)
static bool_t
authnone_marshal (AUTH *client, XDR *xdrs)
{
struct authnone_private_s *ap;
/* authnone_create returned authnone_private->no_client, which is
the first field of struct authnone_private_s. */
ap = (struct authnone_private_s *) client;
if (ap == NULL)
return FALSE;
return (*xdrs->x_ops->x_putbytes) (xdrs, ap->marshalled_client, ap->mcnt);
}
static void
authnone_verf (AUTH *auth)
{
}
static bool_t
authnone_validate (AUTH *auth, struct opaque_auth *oa)
{
return TRUE;
}
static bool_t
authnone_refresh (AUTH *auth)
{
return FALSE;
}
static void
authnone_destroy (AUTH *auth)
{
}
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