FreeBSD/Linux Kernel Cross Reference
sys/rpc/auth_none.c

     /*      $NetBSD: auth_none.c,v 1.13 2000/01/22 22:19:17 mycroft Exp $   */
     
     /*
      * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
      * unrestricted use provided that this legend is included on all tape
      * media and as a part of the software program in whole or part.  Users
      * may copy or modify Sun RPC without charge, but are not authorized
      * to license or distribute it to anyone else except as part of a product or
      * program developed by the user.
     *
     * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
     * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
     *
     * Sun RPC is provided with no support and without any obligation on the
     * part of Sun Microsystems, Inc. to assist in its use, correction,
     * modification or enhancement.
     *
     * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
     * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
     * OR ANY PART THEREOF.
     *
     * In no event will Sun Microsystems, Inc. be liable for any lost revenue
     * or profits or other special, indirect and consequential damages, even if
     * Sun has been advised of the possibility of such damages.
     *
     * Sun Microsystems, Inc.
     * 2550 Garcia Avenue
     * Mountain View, California  94043
     */
    
    #if defined(LIBC_SCCS) && !defined(lint)
    static char *sccsid2 = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
    static char *sccsid = "@(#)auth_none.c  2.1 88/07/29 4.0 RPCSRC";
    #endif
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    /*
     * auth_none.c
     * Creates a client authentication handle for passing "null"
     * credentials and verifiers to remote systems.
     *
     * Copyright (C) 1984, Sun Microsystems, Inc.
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/lock.h>
    #include <sys/malloc.h>
    #include <sys/mutex.h>
    
    #include <rpc/types.h>
    #include <rpc/xdr.h>
    #include <rpc/auth.h>
    
    #define MAX_MARSHAL_SIZE 20
    
    /*
     * Authenticator operations routines
     */
    
    static bool_t authnone_marshal (AUTH *, XDR *);
    static void authnone_verf (AUTH *);
    static bool_t authnone_validate (AUTH *, struct opaque_auth *);
    static bool_t authnone_refresh (AUTH *, void *);
    static void authnone_destroy (AUTH *);
    
    static struct auth_ops authnone_ops = {
            .ah_nextverf =          authnone_verf,
            .ah_marshal =           authnone_marshal,
            .ah_validate =          authnone_validate,
            .ah_refresh =           authnone_refresh,
            .ah_destroy =           authnone_destroy
    };
    
    struct authnone_private {
            AUTH    no_client;
            char    mclient[MAX_MARSHAL_SIZE];
            u_int   mcnt;
    };
    
    static struct authnone_private authnone_private;
    
    static void
    authnone_init(void *dummy)
    {
            struct authnone_private *ap = &authnone_private;
            XDR xdrs;
    
            ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
            ap->no_client.ah_ops = &authnone_ops;
            xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE);
            xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred);
            xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf);
            ap->mcnt = XDR_GETPOS(&xdrs);
            XDR_DESTROY(&xdrs);
    }
   SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL);
   
   AUTH *
   authnone_create()
   {
           struct authnone_private *ap = &authnone_private;
   
           return (&ap->no_client);
   }
   
   /*ARGSUSED*/
   static bool_t
   authnone_marshal(AUTH *client, XDR *xdrs)
   {
           struct authnone_private *ap = &authnone_private;
   
           KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null"));
   
           return (xdrs->x_ops->x_putbytes(xdrs, ap->mclient, ap->mcnt));
   }
   
   /* All these unused parameters are required to keep ANSI-C from grumbling */
   /*ARGSUSED*/
   static void
   authnone_verf(AUTH *client)
   {
   }
   
   /*ARGSUSED*/
   static bool_t
   authnone_validate(AUTH *client, struct opaque_auth *opaque)
   {
   
           return (TRUE);
   }
   
   /*ARGSUSED*/
   static bool_t
   authnone_refresh(AUTH *client, void *dummy)
   {
   
           return (FALSE);
   }
   
   /*ARGSUSED*/
   static void
   authnone_destroy(AUTH *client)
   {
   }

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