aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/gssapi/mechglue/g_unseal.c
blob: c208635b676a8e410c805d8ead9ac991e7a69b13 (plain) (blame)
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
/* #pragma ident	"@(#)g_unseal.c	1.13	98/01/22 SMI" */

/*
 * Copyright 1996 by Sun Microsystems, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appears in all copies and
 * that both that copyright notice and this permission notice appear in
 * supporting documentation, and that the name of Sun Microsystems not be used
 * in advertising or publicity pertaining to distribution of the software
 * without specific, written prior permission. Sun Microsystems makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
 * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/*
 *  glue routine gss_unwrap
 */

#include "mglueP.h"

OM_uint32 KRB5_CALLCONV
gss_unwrap (minor_status,
            context_handle,
            input_message_buffer,
            output_message_buffer,
            conf_state,
            qop_state)

OM_uint32 *		minor_status;
gss_ctx_id_t		context_handle;
gss_buffer_t		input_message_buffer;
gss_buffer_t		output_message_buffer;
int *			conf_state;
gss_qop_t *		qop_state;

{
/* EXPORT DELETE START */
    OM_uint32		status;
    gss_union_ctx_id_t	ctx;
    gss_mechanism	mech;

    if (minor_status != NULL)
	*minor_status = 0;

    if (output_message_buffer != GSS_C_NO_BUFFER) {
	output_message_buffer->length = 0;
	output_message_buffer->value = NULL;
    }

    if (minor_status == NULL)
	return (GSS_S_CALL_INACCESSIBLE_WRITE);

    if (context_handle == GSS_C_NO_CONTEXT)
	return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);

    if (input_message_buffer == GSS_C_NO_BUFFER ||
	GSS_EMPTY_BUFFER(input_message_buffer))

	return (GSS_S_CALL_INACCESSIBLE_READ);

    if (output_message_buffer == GSS_C_NO_BUFFER)
	return (GSS_S_CALL_INACCESSIBLE_WRITE);

    /*
     * select the approprate underlying mechanism routine and
     * call it.
     */
    ctx = (gss_union_ctx_id_t) context_handle;
    if (ctx->internal_ctx_id == GSS_C_NO_CONTEXT)
	return (GSS_S_NO_CONTEXT);
    mech = gssint_get_mechanism (ctx->mech_type);

    if (mech) {
	if (mech->gss_unwrap) {
	    status = mech->gss_unwrap(minor_status,
				      ctx->internal_ctx_id,
				      input_message_buffer,
				      output_message_buffer,
				      conf_state,
				      qop_state);
	    if (status != GSS_S_COMPLETE)
		map_error(minor_status, mech);
	} else if (mech->gss_unwrap_aead || mech->gss_unwrap_iov) {
	    status = gssint_unwrap_aead(mech,
					minor_status,
					ctx,
					input_message_buffer,
					GSS_C_NO_BUFFER,
					output_message_buffer,
					conf_state,
					(gss_qop_t *)qop_state);
	} else
	    status = GSS_S_UNAVAILABLE;

	return(status);
    }

/* EXPORT DELETE END */

    return (GSS_S_BAD_MECH);
}

OM_uint32 KRB5_CALLCONV
gss_unseal (minor_status,
            context_handle,
            input_message_buffer,
            output_message_buffer,
            conf_state,
            qop_state)

OM_uint32 *		minor_status;
gss_ctx_id_t		context_handle;
gss_buffer_t		input_message_buffer;
gss_buffer_t		output_message_buffer;
int *			conf_state;
int *			qop_state;

{
    return (gss_unwrap(minor_status, context_handle,
		       input_message_buffer,
		       output_message_buffer, conf_state, (gss_qop_t *) qop_state));
}