1 /* #pragma ident	"@(#)g_process_context.c	1.12	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_process_context
27  */
28 
29 #include "mglueP.h"
30 
31 OM_uint32 KRB5_CALLCONV
gss_process_context_token(minor_status,context_handle,token_buffer)32 gss_process_context_token (minor_status,
33                            context_handle,
34                            token_buffer)
35 
36 OM_uint32 *		minor_status;
37 gss_ctx_id_t		context_handle;
38 gss_buffer_t		token_buffer;
39 
40 {
41     OM_uint32		status;
42     gss_union_ctx_id_t	ctx;
43     gss_mechanism	mech;
44 
45     if (minor_status == NULL)
46 	return (GSS_S_CALL_INACCESSIBLE_WRITE);
47     *minor_status = 0;
48 
49     if (context_handle == GSS_C_NO_CONTEXT)
50 	return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
51 
52     if (token_buffer == GSS_C_NO_BUFFER)
53 	return (GSS_S_CALL_INACCESSIBLE_READ);
54 
55     if (GSS_EMPTY_BUFFER(token_buffer))
56 	return (GSS_S_CALL_INACCESSIBLE_READ);
57 
58     /*
59      * select the approprate underlying mechanism routine and
60      * call it.
61      */
62 
63     ctx = (gss_union_ctx_id_t) context_handle;
64     if (ctx->internal_ctx_id == GSS_C_NO_CONTEXT)
65 	return (GSS_S_NO_CONTEXT);
66     mech = gssint_get_mechanism (ctx->mech_type);
67 
68     if (mech) {
69 
70 	if (mech->gss_process_context_token) {
71 	    status = mech->gss_process_context_token(
72 						    minor_status,
73 						    ctx->internal_ctx_id,
74 						    token_buffer);
75 	    if (status != GSS_S_COMPLETE)
76 		map_error(minor_status, mech);
77 	} else
78 	    status = GSS_S_UNAVAILABLE;
79 
80 	return(status);
81     }
82 
83     return (GSS_S_BAD_MECH);
84 }
85