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/* $OpenBSD: auth_none.c,v 1.14 2015/11/01 03:45:29 guenther Exp $ */
/*
* 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 <stdlib.h>
#include <rpc/types.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpc/auth.h>
#define MAX_MARSHEL_SIZE 20
/*
* Authenticator operations routines
*/
static void authnone_destroy(struct __rpc_auth *);
static void authnone_verf(struct __rpc_auth *);
static bool_t authnone_validate(struct __rpc_auth *, struct opaque_auth *);
static bool_t authnone_marshal(struct __rpc_auth *, XDR *);
static bool_t authnone_refresh(struct __rpc_auth *);
static struct auth_ops ops = {
authnone_verf,
authnone_marshal,
authnone_validate,
authnone_refresh,
authnone_destroy
};
static struct authnone_private {
AUTH no_client;
char marshalled_client[MAX_MARSHEL_SIZE];
u_int mcnt;
} *authnone_private;
AUTH *
authnone_create(void)
{
struct authnone_private *ap = authnone_private;
XDR xdr_stream;
XDR *xdrs;
if (ap == NULL) {
ap = calloc(1, sizeof (*ap));
if (ap == NULL)
return (NULL);
authnone_private = ap;
}
if (!ap->mcnt) {
ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
ap->no_client.ah_ops = &ops;
xdrs = &xdr_stream;
xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_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);
}
return (&ap->no_client);
}
DEF_WEAK(authnone_create);
static bool_t
authnone_marshal(AUTH *client, XDR *xdrs)
{
struct authnone_private *ap = authnone_private;
if (ap == NULL)
return (0);
return ((*xdrs->x_ops->x_putbytes)(xdrs,
ap->marshalled_client, ap->mcnt));
}
static void
authnone_verf(struct __rpc_auth *none)
{
}
static bool_t
authnone_validate(struct __rpc_auth *none, struct opaque_auth *noauth)
{
return (TRUE);
}
static bool_t
authnone_refresh(struct __rpc_auth *none)
{
return (FALSE);
}
static void
authnone_destroy(struct __rpc_auth *none)
{
}
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