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