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      1 /*
      2  * Copyright 1993 by OpenVision Technologies, Inc.
      3  *
      4  * Permission to use, copy, modify, distribute, and sell this software
      5  * and its documentation for any purpose is hereby granted without fee,
      6  * provided that the above copyright notice appears in all copies and
      7  * that both that copyright notice and this permission notice appear in
      8  * supporting documentation, and that the name of OpenVision not be used
      9  * in advertising or publicity pertaining to distribution of the software
     10  * without specific, written prior permission. OpenVision makes no
     11  * representations about the suitability of this software for any
     12  * purpose.  It is provided "as is" without express or implied warranty.
     13  *
     14  * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
     15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
     16  * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
     17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
     18  * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
     19  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
     20  * PERFORMANCE OF THIS SOFTWARE.
     21  */
     22 
     23 #include "gssapiP_krb5.h"
     24 
     25 /*
     26  * $Id: process_context_token.c 18396 2006-07-25 20:29:43Z lxs $
     27  */
     28 
     29 OM_uint32
     30 krb5_gss_process_context_token(minor_status, context_handle,
     31 			       token_buffer)
     32      OM_uint32 *minor_status;
     33      gss_ctx_id_t context_handle;
     34      gss_buffer_t token_buffer;
     35 {
     36    krb5_gss_ctx_id_rec *ctx;
     37    OM_uint32 majerr;
     38 
     39    /* validate the context handle */
     40    if (! kg_validate_ctx_id(context_handle)) {
     41       *minor_status = (OM_uint32) G_VALIDATE_FAILED;
     42       return(GSS_S_NO_CONTEXT);
     43    }
     44 
     45    ctx = (krb5_gss_ctx_id_t) context_handle;
     46 
     47    if (! ctx->established) {
     48       *minor_status = KG_CTX_INCOMPLETE;
     49       return(GSS_S_NO_CONTEXT);
     50    }
     51 
     52    /* "unseal" the token */
     53 
     54    if (GSS_ERROR(majerr = kg_unseal(minor_status, context_handle,
     55                                     token_buffer,
     56 				    GSS_C_NO_BUFFER, NULL, NULL,
     57 				    KG_TOK_DEL_CTX)))
     58       return(majerr);
     59 
     60    /* that's it.  delete the context */
     61 
     62    return(krb5_gss_delete_sec_context(minor_status, &context_handle,
     63 				      GSS_C_NO_BUFFER));
     64 }
     65