xref: /illumos-gate/usr/src/uts/common/gssapi/mechs/krb5/mech/unseal.c (revision 24da5b34f49324ed742a340010ed5bd3d4e06625)
1 /* EXPORT DELETE START */
2 
3 /*
4  * Copyright 2001-2003 Sun Microsystems, Inc.  All rights reserved.
5  * Use is subject to license terms.
6  */
7 
8 #pragma ident	"%Z%%M%	%I%	%E% SMI"
9 
10 /*
11  * Copyright 1993 by OpenVision Technologies, Inc.
12  *
13  * Permission to use, copy, modify, distribute, and sell this software
14  * and its documentation for any purpose is hereby granted without fee,
15  * provided that the above copyright notice appears in all copies and
16  * that both that copyright notice and this permission notice appear in
17  * supporting documentation, and that the name of OpenVision not be used
18  * in advertising or publicity pertaining to distribution of the software
19  * without specific, written prior permission. OpenVision makes no
20  * representations about the suitability of this software for any
21  * purpose.  It is provided "as is" without express or implied warranty.
22  *
23  * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
24  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
25  * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
26  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
27  * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
28  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
29  * PERFORMANCE OF THIS SOFTWARE.
30  */
31 
32 #include <gssapiP_krb5.h>
33 
34 /*
35  * $Id: unseal.c,v 1.10 1996/07/22 20:34:37 marc Exp $
36  */
37 /*ARGSUSED*/
38 OM_uint32
39 krb5_gss_unseal(ctx, minor_status, context_handle,
40 		input_message_buffer, output_message_buffer,
41 		conf_state, qop_state
42 #ifdef	 _KERNEL
43 		, gssd_ctx_verifier
44 #endif
45 	)
46      void	*ctx;
47      OM_uint32 *minor_status;
48      gss_ctx_id_t context_handle;
49      gss_buffer_t input_message_buffer;
50      gss_buffer_t output_message_buffer;
51      int *conf_state;
52      int *qop_state;
53 #ifdef	 _KERNEL
54 	OM_uint32 gssd_ctx_verifier;
55 #endif
56 {
57    krb5_context context;
58    OM_uint32	status;
59 
60    /* Solaris Kerberos:  for MT safety, we avoid the use of a default
61     * context via kg_get_context() */
62 #if 0
63    if (GSS_ERROR(kg_get_context(minor_status, &context)))
64       return(GSS_S_FAILURE);
65 #endif
66 
67    mutex_lock(&krb5_mutex);
68    context = ctx;
69    status  = kg_unseal(context, minor_status, context_handle,
70 		    input_message_buffer, output_message_buffer,
71 		    conf_state, qop_state, KG_TOK_SEAL_MSG);
72    mutex_unlock(&krb5_mutex);
73 #ifdef	KRB5_NO_PRIVACY
74 	/*
75 	 * Can't be paranoid enough;
76 	 * if someone plugs in their version of kg_unseal
77 	 * that does decryption we want to
78 	 * disallow that too.
79 	*/
80 	if (conf_state && *conf_state)
81    		return (GSS_S_FAILURE);
82 #endif
83    return(status);
84 }
85 
86 /* V2 interface */
87 /*ARGSUSED*/
88 OM_uint32
89 krb5_gss_unwrap(ctx, minor_status, context_handle,
90 		input_message_buffer, output_message_buffer,
91 		conf_state, qop_state)
92     void		*ctx;
93     OM_uint32		*minor_status;
94     gss_ctx_id_t	context_handle;
95     gss_buffer_t	input_message_buffer;
96     gss_buffer_t	output_message_buffer;
97     int			*conf_state;
98     gss_qop_t		*qop_state;
99 {
100 #ifdef	KRB5_NO_PRIVACY
101    return (GSS_S_FAILURE);
102 #else
103    OM_uint32		rstat;
104    int			qstate;
105    krb5_context context;
106 
107    /* Solaris Kerberos:  for MT safety, we avoid the use of a default
108     * context via kg_get_context() */
109 #if 0
110     if (GSS_ERROR(kg_get_context(minor_status, &context)))
111        return(GSS_S_FAILURE);
112 #endif
113 
114    mutex_lock(&krb5_mutex);
115    context = ctx;
116 
117    rstat = kg_unseal(context, minor_status, context_handle,
118 		      input_message_buffer, output_message_buffer,
119 		      conf_state, &qstate, KG_TOK_WRAP_MSG);
120    if (!rstat && qop_state)
121 	*qop_state = (gss_qop_t) qstate;
122    mutex_unlock(&krb5_mutex);
123    return(rstat);
124 #endif
125 }
126 /* EXPORT DELETE END */
127