Line data    Source code

       1             : /*
       2             :  * Copyright (c) 1997 - 2006 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             : /* This file for code taken from the Heimdal code, to preserve licence */
      35             : /* Modified by Andrew Bartlett <abartlet@samba.org> */
      36             : 
      37             : #include "includes.h"
      38             : #include "system/kerberos.h"
      39             : #include "auth/kerberos/kerberos.h"
      40             : #include "gensec_krb5.h"
      41             : 
      42             : /* Taken from  accept_sec_context.c,v 1.65 */
      43        1185 : krb5_error_code smb_krb5_rd_req_decoded(krb5_context context,
      44             :                                         krb5_auth_context *auth_context,
      45             :                                         const krb5_data *inbuf,
      46             :                                         krb5_keytab keytab,
      47             :                                         krb5_principal acceptor_principal,
      48             :                                         krb5_data *outbuf,
      49             :                                         krb5_ticket **ticket,
      50             :                                         krb5_keyblock **keyblock)
      51             : {
      52        1185 :         krb5_rd_req_in_ctx in = NULL;
      53        1185 :         krb5_rd_req_out_ctx out = NULL;
      54             :         krb5_error_code kret;
      55             : 
      56        1185 :         *keyblock = NULL;
      57        1185 :         *ticket = NULL;
      58        1185 :         outbuf->length = 0;
      59        1185 :         outbuf->data = NULL;
      60             : 
      61        1185 :         kret = krb5_rd_req_in_ctx_alloc(context, &in);
      62        1185 :         if (kret == 0)
      63        1185 :             kret = krb5_rd_req_in_set_keytab(context, in, keytab);
      64        1185 :         if (kret) {
      65           0 :             if (in)
      66           0 :                 krb5_rd_req_in_ctx_free(context, in);
      67           0 :             return kret;
      68             :         }
      69             : 
      70        1185 :         kret = krb5_rd_req_ctx(context,
      71             :                                auth_context,
      72             :                                inbuf,
      73             :                                acceptor_principal,
      74             :                                in, &out);
      75        1185 :         krb5_rd_req_in_ctx_free(context, in);
      76        1185 :         if (kret) {
      77           0 :             return kret;
      78             :         }
      79             : 
      80             :         /*
      81             :          * We need to remember some data on the context_handle.
      82             :          */
      83        1185 :         kret = krb5_rd_req_out_get_ticket(context, out,
      84             :                                           ticket);
      85        1185 :         if (kret == 0) {
      86        1185 :             kret = krb5_rd_req_out_get_keyblock(context, out,
      87             :                                                 keyblock);
      88             :         }
      89        1185 :         krb5_rd_req_out_ctx_free(context, out);
      90             : 
      91        1185 :         if (kret == 0) {
      92        1185 :                 kret = krb5_mk_rep(context, *auth_context, outbuf);
      93             :         }
      94             : 
      95        1185 :         if (kret) {
      96           0 :                 krb5_free_ticket(context, *ticket);
      97           0 :                 krb5_free_keyblock(context, *keyblock);
      98           0 :                 krb5_data_free(outbuf);
      99             :         }
     100             : 
     101        1185 :         return kret;
     102             : }