usr/src/lib/gss_mechs/mech_krb5/mech/context_time.c

   1 /*
   2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
   3  */
   4 /* Copyright 1993 by OpenVision Technologies, 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 OpenVision not be used
  11  * in advertising or publicity pertaining to distribution of the software
  12  * without specific, written prior permission. OpenVision 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  * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  18  * EVENT SHALL OPENVISION 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 #include "gssapiP_krb5.h"
  26
  27 /*
  28  * $Id: context_time.c 16187 2004-03-19 09:33:57Z raeburn $
  29  */
  30
  31 OM_uint32
  32 krb5_gss_context_time(minor_status, context_handle, time_rec)
  33      OM_uint32 *minor_status;
  34      gss_ctx_id_t context_handle;
  35      OM_uint32 *time_rec;
  36 {
  37    krb5_error_code code;
  38    krb5_gss_ctx_id_rec *ctx;
  39    krb5_timestamp now;
  40    krb5_deltat lifetime;
  41
  42    /* validate the context handle */
  43    if (! kg_validate_ctx_id(context_handle)) {
  44       *minor_status = (OM_uint32) G_VALIDATE_FAILED;
  45       return(GSS_S_NO_CONTEXT);
  46    }
  47
  48    ctx = (krb5_gss_ctx_id_rec *) context_handle;
  49
  50    if (! ctx->established) {
  51       *minor_status = KG_CTX_INCOMPLETE;
  52       return(GSS_S_NO_CONTEXT);
  53    }
  54
  55    if ((code = krb5_timeofday(ctx->k5_context, &now))) {
  56       *minor_status = code;
  57       save_error_info(*minor_status, ctx->k5_context);
  58       return(GSS_S_FAILURE);
  59    }
  60
  61    if ((lifetime = ctx->endtime - now) <= 0) {
  62       *time_rec = 0;
  63       *minor_status = 0;
  64       return(GSS_S_CONTEXT_EXPIRED);
  65    } else {
  66       *time_rec = lifetime;
  67       *minor_status = 0;
  68       return(GSS_S_COMPLETE);
  69    }
  70 }