1 /* @(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC */
2 /*
3 * Copyright (c) 2010, Oracle America, Inc.
4 *
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * * Neither the name of the "Oracle America, Inc." nor the names of
19 * its contributors may be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
23 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
25 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
28 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34 #if !defined(lint) && defined(SCCSIDS)
35 static char sccsid[] = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
36 #endif
37
38 /*
39 * auth_none.c
40 * Creates a client authentication handle for passing "null"
41 * credentials and verifiers to remote systems.
42 */
43
44 #include <gssrpc/types.h>
45 #include <gssrpc/xdr.h>
46 #include <gssrpc/auth.h>
47 #include <stdlib.h>
48 #define MAX_MARSHEL_SIZE 20
49
50 /*
51 * Authenticator operations routines
52 */
53 static void authnone_verf(AUTH *);
54 static void authnone_destroy(AUTH *);
55 static bool_t authnone_marshal(AUTH *, XDR *);
56 static bool_t authnone_validate(AUTH *, struct opaque_auth *);
57 static bool_t authnone_refresh(AUTH *, struct rpc_msg *);
58 static bool_t authnone_wrap(AUTH *, XDR *, xdrproc_t, caddr_t);
59
60 static struct auth_ops ops = {
61 authnone_verf,
62 authnone_marshal,
63 authnone_validate,
64 authnone_refresh,
65 authnone_destroy,
66 authnone_wrap,
67 authnone_wrap
68 };
69
70 static struct authnone_private {
71 AUTH no_client;
72 char marshalled_client[MAX_MARSHEL_SIZE];
73 u_int mcnt;
74 } *authnone_private;
75
76 AUTH *
authnone_create(void)77 authnone_create(void)
78 {
79 struct authnone_private *ap = authnone_private;
80 XDR xdr_stream;
81 XDR *xdrs;
82
83 if (ap == 0) {
84 ap = (struct authnone_private *)calloc(1, sizeof (*ap));
85 if (ap == 0)
86 return (0);
87 authnone_private = ap;
88 }
89 if (!ap->mcnt) {
90 ap->no_client.ah_cred = ap->no_client.ah_verf = gssrpc__null_auth;
91 ap->no_client.ah_ops = &ops;
92 xdrs = &xdr_stream;
93 xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,
94 XDR_ENCODE);
95 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
96 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
97 ap->mcnt = XDR_GETPOS(xdrs);
98 XDR_DESTROY(xdrs);
99 }
100 return (&ap->no_client);
101 }
102
103 /*ARGSUSED*/
104 static bool_t
authnone_marshal(AUTH * client,XDR * xdrs)105 authnone_marshal(AUTH *client, XDR *xdrs)
106 {
107 struct authnone_private *ap = authnone_private;
108
109 if (ap == 0)
110 return (0);
111 return ((*xdrs->x_ops->x_putbytes)(xdrs,
112 ap->marshalled_client, ap->mcnt));
113 }
114
115 /*ARGSUSED*/
116 static void
authnone_verf(AUTH * auth)117 authnone_verf(AUTH *auth)
118 {
119 }
120
121 /*ARGSUSED*/
122 static bool_t
authnone_validate(AUTH * auth,struct opaque_auth * verf)123 authnone_validate(AUTH *auth, struct opaque_auth *verf)
124 {
125
126 return (TRUE);
127 }
128
129 /*ARGSUSED*/
130 static bool_t
authnone_refresh(AUTH * auth,struct rpc_msg * msg)131 authnone_refresh(AUTH *auth, struct rpc_msg *msg)
132 {
133
134 return (FALSE);
135 }
136
137 /*ARGSUSED*/
138 static void
authnone_destroy(AUTH * auth)139 authnone_destroy(AUTH *auth)
140 {
141 }
142
143 static bool_t
authnone_wrap(AUTH * auth,XDR * xdrs,xdrproc_t xfunc,caddr_t xwhere)144 authnone_wrap(AUTH *auth, XDR *xdrs, xdrproc_t xfunc, caddr_t xwhere)
145 {
146 return ((*xfunc)(xdrs, xwhere));
147 }
148