1 /* #pragma ident "@(#)g_sign.c 1.14 98/04/23 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_get_mic
27 */
28
29 #include "mglueP.h"
30
31 static OM_uint32
val_get_mic_args(OM_uint32 * minor_status,gss_ctx_id_t context_handle,gss_qop_t qop_req,gss_buffer_t message_buffer,gss_buffer_t msg_token)32 val_get_mic_args(
33 OM_uint32 *minor_status,
34 gss_ctx_id_t context_handle,
35 gss_qop_t qop_req,
36 gss_buffer_t message_buffer,
37 gss_buffer_t msg_token)
38 {
39
40 /* Initialize outputs. */
41
42 if (minor_status != NULL)
43 *minor_status = 0;
44
45 if (msg_token != GSS_C_NO_BUFFER) {
46 msg_token->value = NULL;
47 msg_token->length = 0;
48 }
49
50 /* Validate arguments. */
51
52 if (minor_status == NULL)
53 return (GSS_S_CALL_INACCESSIBLE_WRITE);
54
55 if (context_handle == GSS_C_NO_CONTEXT)
56 return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
57
58 if (message_buffer == GSS_C_NO_BUFFER)
59 return (GSS_S_CALL_INACCESSIBLE_READ);
60
61 if (msg_token == GSS_C_NO_BUFFER)
62 return (GSS_S_CALL_INACCESSIBLE_WRITE);
63
64 return (GSS_S_COMPLETE);
65 }
66
67
68 OM_uint32 KRB5_CALLCONV
gss_get_mic(OM_uint32 * minor_status,gss_ctx_id_t context_handle,gss_qop_t qop_req,gss_buffer_t message_buffer,gss_buffer_t msg_token)69 gss_get_mic(OM_uint32 *minor_status, gss_ctx_id_t context_handle,
70 gss_qop_t qop_req, gss_buffer_t message_buffer,
71 gss_buffer_t msg_token)
72 {
73 OM_uint32 status;
74 gss_union_ctx_id_t ctx;
75 gss_mechanism mech;
76
77 status = val_get_mic_args(minor_status, context_handle,
78 qop_req, message_buffer, msg_token);
79 if (status != GSS_S_COMPLETE)
80 return (status);
81
82 /*
83 * select the approprate underlying mechanism routine and
84 * call it.
85 */
86
87 ctx = (gss_union_ctx_id_t) context_handle;
88 if (ctx->internal_ctx_id == GSS_C_NO_CONTEXT)
89 return (GSS_S_NO_CONTEXT);
90 mech = gssint_get_mechanism (ctx->mech_type);
91
92 if (mech) {
93 if (mech->gss_get_mic) {
94 status = mech->gss_get_mic(
95 minor_status,
96 ctx->internal_ctx_id,
97 qop_req,
98 message_buffer,
99 msg_token);
100 if (status != GSS_S_COMPLETE)
101 map_error(minor_status, mech);
102 } else
103 status = GSS_S_UNAVAILABLE;
104
105 return(status);
106 }
107
108 return (GSS_S_BAD_MECH);
109 }
110
111 OM_uint32 KRB5_CALLCONV
gss_sign(OM_uint32 * minor_status,gss_ctx_id_t context_handle,int qop_req,gss_buffer_t message_buffer,gss_buffer_t msg_token)112 gss_sign(OM_uint32 *minor_status, gss_ctx_id_t context_handle, int qop_req,
113 gss_buffer_t message_buffer, gss_buffer_t msg_token)
114 {
115 return (gss_get_mic(minor_status, context_handle, (gss_qop_t) qop_req,
116 message_buffer, msg_token));
117 }
118