1 /* #pragma ident "@(#)g_unseal.c 1.13 98/01/22 SMI" */
2
3 /*
4 * Copyright 1996 by Sun Microsystems, Inc.
5 *
6 * Permission to use, copy, modify, distribute, and sell this software
7 * and its documentation for any purpose is hereby granted without fee,
8 * provided that the above copyright notice appears in all copies and
9 * that both that copyright notice and this permission notice appear in
10 * supporting documentation, and that the name of Sun Microsystems not be used
11 * in advertising or publicity pertaining to distribution of the software
12 * without specific, written prior permission. Sun Microsystems makes no
13 * representations about the suitability of this software for any
14 * purpose. It is provided "as is" without express or implied warranty.
15 *
16 * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18 * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
20 * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
21 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
22 * PERFORMANCE OF THIS SOFTWARE.
23 */
24
25 /*
26 * glue routine gss_unwrap
27 */
28
29 #include "mglueP.h"
30
31 OM_uint32 KRB5_CALLCONV
gss_unwrap(minor_status,context_handle,input_message_buffer,output_message_buffer,conf_state,qop_state)32 gss_unwrap (minor_status,
33 context_handle,
34 input_message_buffer,
35 output_message_buffer,
36 conf_state,
37 qop_state)
38
39 OM_uint32 * minor_status;
40 gss_ctx_id_t context_handle;
41 gss_buffer_t input_message_buffer;
42 gss_buffer_t output_message_buffer;
43 int * conf_state;
44 gss_qop_t * qop_state;
45
46 {
47 /* EXPORT DELETE START */
48 OM_uint32 status;
49 gss_union_ctx_id_t ctx;
50 gss_mechanism mech;
51
52 if (minor_status != NULL)
53 *minor_status = 0;
54
55 if (output_message_buffer != GSS_C_NO_BUFFER) {
56 output_message_buffer->length = 0;
57 output_message_buffer->value = NULL;
58 }
59
60 if (minor_status == NULL)
61 return (GSS_S_CALL_INACCESSIBLE_WRITE);
62
63 if (context_handle == GSS_C_NO_CONTEXT)
64 return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
65
66 if (input_message_buffer == GSS_C_NO_BUFFER ||
67 GSS_EMPTY_BUFFER(input_message_buffer))
68
69 return (GSS_S_CALL_INACCESSIBLE_READ);
70
71 if (output_message_buffer == GSS_C_NO_BUFFER)
72 return (GSS_S_CALL_INACCESSIBLE_WRITE);
73
74 /*
75 * select the approprate underlying mechanism routine and
76 * call it.
77 */
78 ctx = (gss_union_ctx_id_t) context_handle;
79 if (ctx->internal_ctx_id == GSS_C_NO_CONTEXT)
80 return (GSS_S_NO_CONTEXT);
81 mech = gssint_get_mechanism (ctx->mech_type);
82
83 if (mech) {
84 if (mech->gss_unwrap) {
85 status = mech->gss_unwrap(minor_status,
86 ctx->internal_ctx_id,
87 input_message_buffer,
88 output_message_buffer,
89 conf_state,
90 qop_state);
91 if (status != GSS_S_COMPLETE)
92 map_error(minor_status, mech);
93 } else if (mech->gss_unwrap_aead || mech->gss_unwrap_iov) {
94 status = gssint_unwrap_aead(mech,
95 minor_status,
96 ctx,
97 input_message_buffer,
98 GSS_C_NO_BUFFER,
99 output_message_buffer,
100 conf_state,
101 (gss_qop_t *)qop_state);
102 } else
103 status = GSS_S_UNAVAILABLE;
104
105 return(status);
106 }
107
108 /* EXPORT DELETE END */
109
110 return (GSS_S_BAD_MECH);
111 }
112
113 OM_uint32 KRB5_CALLCONV
gss_unseal(minor_status,context_handle,input_message_buffer,output_message_buffer,conf_state,qop_state)114 gss_unseal (minor_status,
115 context_handle,
116 input_message_buffer,
117 output_message_buffer,
118 conf_state,
119 qop_state)
120
121 OM_uint32 * minor_status;
122 gss_ctx_id_t context_handle;
123 gss_buffer_t input_message_buffer;
124 gss_buffer_t output_message_buffer;
125 int * conf_state;
126 int * qop_state;
127
128 {
129 return (gss_unwrap(minor_status, context_handle,
130 input_message_buffer,
131 output_message_buffer, conf_state, (gss_qop_t *) qop_state));
132 }
133