1 /* $NetBSD: context_time.c,v 1.2 2017/01/28 21:31:46 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "gsskrb5_locl.h"
37
38 OM_uint32
_gsskrb5_lifetime_left(OM_uint32 * minor_status,krb5_context context,OM_uint32 endtime,OM_uint32 * lifetime_rec)39 _gsskrb5_lifetime_left(OM_uint32 *minor_status,
40 krb5_context context,
41 OM_uint32 endtime,
42 OM_uint32 *lifetime_rec)
43 {
44 krb5_timestamp now;
45 krb5_error_code kret;
46
47 if (endtime == 0) {
48 *lifetime_rec = GSS_C_INDEFINITE;
49 return GSS_S_COMPLETE;
50 }
51
52 kret = krb5_timeofday(context, &now);
53 if (kret) {
54 *lifetime_rec = 0;
55 *minor_status = kret;
56 return GSS_S_FAILURE;
57 }
58
59 if (endtime < now)
60 *lifetime_rec = 0;
61 else
62 *lifetime_rec = endtime - now;
63
64 return GSS_S_COMPLETE;
65 }
66
67
_gsskrb5_context_time(OM_uint32 * minor_status,gss_const_ctx_id_t context_handle,OM_uint32 * time_rec)68 OM_uint32 GSSAPI_CALLCONV _gsskrb5_context_time
69 (OM_uint32 * minor_status,
70 gss_const_ctx_id_t context_handle,
71 OM_uint32 * time_rec
72 )
73 {
74 krb5_context context;
75 OM_uint32 endtime;
76 OM_uint32 major_status;
77 const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle;
78
79 GSSAPI_KRB5_INIT (&context);
80
81 HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
82 endtime = ctx->endtime;
83 HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
84
85 major_status = _gsskrb5_lifetime_left(minor_status, context,
86 endtime, time_rec);
87 if (major_status != GSS_S_COMPLETE)
88 return major_status;
89
90 *minor_status = 0;
91
92 if (*time_rec == 0)
93 return GSS_S_CONTEXT_EXPIRED;
94
95 return GSS_S_COMPLETE;
96 }
97