1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* auth_none.c implements routines used to pass "null" credentials
* and "null" verifiers in kernel RPC.
*/
#include <rpc/auth.h>
/*
* Null authenticator operations vector
*/
static void authnone_nextverf(AUTH *);
static bool_t authnone_marshal(AUTH *, XDR *, struct cred *);
static bool_t authnone_validate(AUTH *, struct opaque_auth *);
static bool_t authnone_refresh(AUTH *, struct rpc_msg *, cred_t *);
static void authnone_destroy(AUTH *);
static struct auth_ops auth_none_ops = {
authnone_nextverf,
authnone_marshal,
authnone_validate,
authnone_refresh,
authnone_destroy,
authany_wrap,
authany_unwrap
};
/*
* Create a kernel null style authenticator.
* Returns an auth handle.
*/
AUTH *
authnone_create(void)
{
/*
* Allocate and set up auth handle
*/
return (kmem_cache_alloc(authnone_cache, KM_SLEEP));
}
/*
* The constructor of the authnone_cache.
*/
/* ARGSUSED */
int
authnone_init(void *buf, void *cdrarg, int kmflags)
{
AUTH *auth = (AUTH *)buf;
auth->ah_ops = &auth_none_ops;
/*
* Flavor of RPC message's credential and verifier should be set to
* AUTH_NONE. Opaque data associated with AUTH_NONE is undefined.
* The length of the opaque data should be zero.
* oa_flavor = AUTH_NONE
* oa_base = NULL
* oa_length = 0
*/
auth->ah_cred = auth->ah_verf = _null_auth;
return (0);
}
/*
* authnone operations
*/
/* ARGSUSED */
static void
authnone_nextverf(AUTH *auth)
{
/* no action necessary */
}
/* ARGSUSED */
static bool_t
authnone_marshal(AUTH *auth, XDR *xdrs, struct cred *cr)
{
int32_t *ptr;
/*
* auth_none has no opaque data. Encode auth_none
* value with 0 len data for both cred and verf.
* We first try a fast path to complete this operation.
*/
ptr = XDR_INLINE(xdrs, 4 + 4 + 4 + 4);
if (ptr) {
IXDR_PUT_INT32(ptr, AUTH_NONE);
IXDR_PUT_INT32(ptr, 0);
IXDR_PUT_INT32(ptr, AUTH_NONE);
IXDR_PUT_INT32(ptr, 0);
return (TRUE);
}
/*
* serialize AUTH_NONE credential and AUTH_NONE verifier
*/
if ((xdr_opaque_auth(xdrs, &(auth->ah_cred))) &&
(xdr_opaque_auth(xdrs, &(auth->ah_verf))))
return (TRUE);
else
return (FALSE);
}
/* ARGSUSED */
static bool_t
authnone_validate(AUTH *auth, struct opaque_auth *verf)
{
return (TRUE);
}
/* ARGSUSED */
static bool_t
authnone_refresh(AUTH *auth, struct rpc_msg *msg, cred_t *cr)
{
return (FALSE);
}
static void
authnone_destroy(AUTH *auth)
{
kmem_cache_free(authnone_cache, auth);
}
|
