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 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 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